௧࿴㸰ᖺᗘඹྠ฼⏝࣭ඹྠ◊✲ሗ࿌᭩ྡྂᒇ኱Ꮫᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤඹྠ฼⏝࣭ඹྠ◊✲ጤဨ఍௧࿴䠎ᖺᗘ䚷ሗ࿌᭩┠ḟ
㻺㼛㻚

◊✲௦⾲⪅

ᡤᒓᶵ㛵

◊✲ㄢ㢟ྡ

㡫

㻝 ▼ᶫ㝯ᖾ

㛗ᒸᢏ⾡⛉Ꮫ኱Ꮫ኱᪂つ䝡䝇䝬䝇⨨᥮☢ᛶ䜺䞊䝛䝑䝖䛾㛤Ⓨ䛸ホ౯Ꮫ㝔㻝㻞 ᒣ⏣ၨ௓ᒱ㜧኱Ꮫ෇⟄ᙧ≧䜢᭷䛩䜛༢୍㻲㼑㻺㼕䝘䝜☢ᛶ⣽⥺䛾ᵓ㐀䛸␗᪉ᛶ☢Ẽ᢬ᢠຠᯝ䛾┦㛵ゎ᫂㻟㻟 ⸨ཎ⿱ྖ

୕㔜኱Ꮫ㻲㼑⣔䜰䝰䝹䝣䜯䝇ྜ㔠ⷧ⭷䜢฼⏝䛧䛯䜂䛪䜏䝉䞁䝃䛾㛤Ⓨ㻡㻠 㟷ᮌⱱᶞ

⚄ᡞ኱Ꮫ㉸㧗㏿ཎᏊ᰾஝ᯈゎᯒᢏ⾡䜢฼⏝䛧䛯Ẽ⌫ᦚ㍕ᆺᏱᐂ⥺䜲䝯䞊䝆䞁䜾䝅䝇䝔䝮䛾☜❧㻣㻡 ṓ⸨฼⾜ྡྂᒇᕷ❧す㒊་⒪㝧Ꮚ⥺἞⒪䛻䛚䛡䜛యෆ⥺㔞ศᕸ䛾ィ
䝉䞁䝍䞊

ἲ䛾㛤Ⓨ

㻝㻜

㻢 す⸨Ύ⚽

ዉⰋ┴❧᷃ཎ⪃ྂᏛྂ௦♫఍䛻䛚䛡䜛㈨※㓄⤥䝛䝑䝖䝽䞊䜽䛾ᩘ್ゎᯒ◊✲ᡤ㻝㻞㻣 ఀ௦㔝䚷῟ᒸᒣ⌮⛉኱Ꮫ㉸㧗㏿㣕㊧ㄆ㆑⿦⨨㻴㼀㻿䛻䜘䜛ῶឤཎᏊ᰾஝ᯈ୰䛾Ᏹᐂ⥺ཎᏊ᰾ྠᐃἲ䛾◊✲㻝㻠㻤 ୰䚷❳኱

ᮾ㑥኱ᏛཎᏊ᰾஝ᯈ䜢⏝䛔䛯⢏Ꮚ᳨ฟჾ䛻䛚䛡䜛㐠ື㔞㻝㻢㻥 ᮌᮧ඘ᏹ

ྡྂᒇᕷ⑓㝔ᒁす㒊䝩䜴⣲㝧Ꮚᤕᤊ⒪ἲ䛾స⏝ᶵᗎ䛾ゎ᫂䛾䛯䜑䛾᪂ᆺཎᏊ᰾஝ᯈ䛾㛤Ⓨ་⒪䝉䞁䝍䞊

㻝㻤㻝㻜 ᭷㈡ᬛᏊ஑ᕞ኱Ꮫ㻞㻜㻝㻝 ཎ䚷჆᫛

Ⲉᇛᕤᴗ㧗➼ᑓ㛛Ꮫඹᯒ཯ᛂ䜢฼⏝䛧䛯㧗⤖ᬗ㓄ྥᛶ䜢᭷䛩䜛⇕㟁⣲Ꮚ䛾㛤Ⓨᰯ㻞㻞㻝㻞 ᑠႹ┿ேᮾி⌮⛉኱Ꮫ

㻞㻠㻝㻟 ⸨஭೺ኴ㑻ᅜ❧◊✲㛤Ⓨἲே㔞Ꮚ⛉Ꮫᢏ⾡◊✲㛤 Ỉ࿴⏕యศᏊ䛾䜶䝛䝹䜼䞊ఏ㐩㐣⛬䛾◊✲Ⓨᶵᵓ㻞㻢㻝㻠 㧗ᶫྍᫀ㛵す኱Ꮫ┬䡰䢄䢕䡳䢚䡬໬䜢ಁ㐍䛩䜛⪏ೃᛶ㻵㼛㼀䡿䢚䢆䢚䡮䡹䛾ᙉᗘタィᇶ‽䛻㛵䛩䜛◊✲㻞㻤㻝㻡 ୰ᕝ㕲Ỉ⌰⌫኱ᏛỈ⣲྾ⶶྜ㔠䜢⏝䛔䛯䝯䝍䞁໬཯ᛂ䛾㼕㼚㻙㼟㼕㼠㼡㻌㼀㻱㻹䞉㉁㔞ศᯒ ᐃ㻟㻜㻝㻢 ⸨ᒃಇஅ

ᮾிᕤᴗ኱Ꮫ

⮬ື㌴⏝䝣䜵䝷䜲䝖㗰䛻䛚䛡䜛⑂ປ㌿఩⤌⧊䛾㉸㧗ᅽ㟁Ꮚ㢧ᚤ㙾ほᐹ㻟㻞㻝㻣 బ⸨ಇ୍

ᮾ໭኱Ꮫ㟁Ꮚ఩┦ᅇᢡ⣲Ꮚ䛾ホ౯㻟㻠㻝㻤 ᒣ㷂䚷㡰

኱㜰኱Ꮫ཰ᕪ⿵ṇ㟁Ꮚ㢧ᚤ㙾䜢⏝䛔䛯㔠ᒓ䝘䝜⢏Ꮚゐ፹䛾୕ḟඖィ㻝㻥 ྜྷ⏣᭸Ꮚ

኱㜰ᕷ❧኱Ꮫ

䝘䝜ᵓ㐀໬㔠ᒓ㻛㔠ᒓ㓟໬≀」ྜᆺᮦᩱ䛾ᶵ⬟Ⓨ⌧㻞㻜 ୕ዲᩄ႐

㧗䜶䝛䝹䜼䞊ຍ㏿ჾ
㧗㏿㧗ឤᗘ䝎䜲䝺䜽䝖㟁Ꮚ᳨ฟჾ䛾㛤Ⓨ◊✲ᶵᵓ㻞㻝 ಖ஭䚷᫭බ┈㈈ᅋἲே㧗㍤ᗘ ◳䊩⥺ග㟁Ꮚศග䜢⏝䛔䛯䝇䝢䞁䝖䝻䝙䜽䝇ᮦᩱ䛾ᇙ䜒䜜䛯⏺㠃䛻䛚䛡䜛☢໬ศᕸィග⛉Ꮫ◊✲䝉䞁䝍䞊 Ⓨ㻞㻞 ㇏⏣ᬛྐ

ᮾ໭኱Ꮫ◳㼄⥺ゅᗘศゎග㟁Ꮚศග䜢⏝䛔䛯ከᒙ✚ᒙⷧ⭷⏺㠃䛻䛚䛡䜛῝䛥᪉ྥศᕸ䛾᫬⣔ิゎᯒ
ᢏ⾡㛤Ⓨ

㻠㻠

㻞㻟 ჆ᖭ䚷ⱱி㒔እᅜㄒ኱Ꮫ

⪃ྂᏛ㑇㊧ㄪᰝ䛾䛯䜑䛾䝪䞊䝸䞁䜾ᆺᏱᐂ⥺䝭䝳䞊䜸䞁䜲䝯䞊䝆䞁䜾ᢏ⾡䛾㛤Ⓨ◊✲㻠㻢㻞㻠 ᐑᮏᡂᝅ

ᮾி኱ᏛᏱᐂ⥺䜢⏝䛔䛯ⅆᒣ䛾㻯㼀᧜ീ㻠㻤㻞㻡 㔠ᓮ┿⪽⚄ᡞ኱Ꮫ኱Ꮫ㝔ཎᏊ᰾஝ᯈ䜢⏝䛔䛯㻝㻜㻜㻌㻹㼑㼂⣭䝺䞊䝄䞊ຍ㏿䝥䝻䝖䞁䛾≉ᛶホ౯㻡㻜㻞㻢 㣤ᒸ኱㍜ᮾ໭኱Ꮫ㟁ຊ⣔⤫䛾䜸䝣䜾䝸䝑䝗໬䛻ᚲせ䛺⵳㟁ụ䛾ᐜ㔞పῶ䛻㛵䛩䜛◊✲㻡㻞ᐃᢏ⾡䛾㧗ᗘ໬

㻸㼍㼞㼓㼑㻌㻴㼍㼐㼞㼛㼚㻌㻯㼛㼘㼘㼕㼐㼑㼞䛻䛚䛡䜛㧗䜶䝛䝹䜼䞊䝙䝳䞊䝖䝸䝜཯ᛂ䛾ึほ䝺䜰䝯䝍䝹䝣䝸䞊㧗ᶵ⬟☢ᛶᮦᩱ㻸㻝㻜㻙㻲㼑㻯㼛䛾ᡂ⭷ᢏ⾡䛾㛤Ⓨ

ᡭἲ䛾㛤Ⓨ

㻟㻢
㻟㻤
㻠㻜
ᢏ⾡㛤

㻠㻞

㻺㼛㻚

◊✲௦⾲⪅

ᡤᒓᶵ㛵

◊✲ㄢ㢟ྡ
䜢⏝䛔䛯᪥ᑕ㔞ண኱እ䛧ணぢྍ⬟ᛶ㡫㻞㻣 Ᏹ㔝ྐ╬ᮾி኱Ꮫ」ᩘ䛾㡿ᇦ䜰䞁䝃䞁䝤䝹ண㻞㻤 ༓ఫᬛಙ

⌰⌫኱Ꮫ㻽㻙㻸㼑㼍㼞㼚㼕㼚㼓䜢⏝䛔䛯㻼㻹㻿㻳㢼ຊⓎ㟁ᶵ䛾䝟䝷䝯䞊䝍ྠᐃ㻡㻢㻞㻥 ⷧ஭ᬛ㈗ே㛫⎔ቃ኱Ꮫ

⅏ᐖⓎ⏕᫬䛾⁫␃ேཱྀ䜢⪃៖䛧䛯ᨭ᥼≀㈨㍺㏦䜶䝛䝹䜼䞊䛾᭱ᑠ໬㻡㻤㻟㻜 ๽䚷㘜

኱㐃⌮ᕤ኱Ꮫ

ືⓗ䛺㟁ຊ๭䜚ᙜ䛶䛻䜘䜛኱つᶍ䛺㟁Ẽ䝞䝇඘㟁᭱㐺໬㻢㻜㻟㻝 ஭ᩱ㝯㞞

⚄ᡞ኱Ꮫே㐨ᨭ᥼䝻䝆䝇䝔䜱䜽䝇䛻ᑐ䛩䜛ືᏛⓗ䛺᭱㐺ไᚚᡭἲ㻢㻞㻟㻞 ᕸ┠㝧Ꮚᗈᓥ኱Ꮫ᭷ᶵ䜶䜰䝻䝌䝹ィ㻟㻟 ᑠᯘ䚷₶ᕤᏛ㝔኱ᏛከᏍ㉁䝉䝷䝭䝑䜽䜢⏝䛔䛯ప䝍䞊䝹䝞䜲䜸䝬䝇䜺䝇໬䝥䝻䝉䝇䛾㛤Ⓨ㻢㻠㻟㻠 ᑠᯘಙ௓

ᒱ㜧኱Ꮫ䝞䜲䜸䜺䝇䝗䝷䜲䝸䝣䜷䞊䝭䞁䜾⏝ᄇὶᒙ䝥䝷䝈䝬䝸䜰䜽䝍䞊䛾㛤Ⓨ㻢㻢㻟㻡 ⢖⏣㈗ᐉ

ᅜᅵᢏ⾡ᨻ⟇⥲ྜ◊⏕≀㟁Ẽ໬Ꮫⓗ䛺❅⣲ᅛᐃಁ㐍ᢏ⾡㛤Ⓨ✲ᡤ㻢㻤㻟㻢 ℈ᮧዉὠᏊ

஑ᕞ኱Ꮫᑟ㟁䞉⵳㟁ᛶ≀㉁䜢௓䛧䛯ᚤ⏕≀㟁Ẽඹ⏕䛻䜘䜛᭷⏝㔠ᒓᅇ཰ᢏ⾡䛾┬䜶䝛䝹䜼䞊໬㻣㻜㻟㻣 Ⲩ஭ఙኴ㑻ᒸᒣ⌮⛉኱Ꮫᅇ㌿ᘧ㻸㻱㻰䝕䜱䝇䝥䝺䜲䛸䜹䝯䝷䜢⏝䛔䛯ྍどග㏻ಙ䝅䝇䝔䝮䛾㛤Ⓨ㻣㻞㻟㻤 ᯘ䚷࿴๎

኱㜰ᕷ❧኱Ꮫ

ග↓⥺㻹㻵㻹㻻㏻ಙ䛾䛯䜑䛾㧗ຠ⋡ಙྕ᳨ฟ㻣㻠㻟㻥 ᒣᓮ⏤⌮

ᮾி㎰ᴗ኱Ꮫ

㼃㼑㼎㻳㻵㻿ᆺ䝉䝬䞁䝔䜱䝑䜽䝰䝕䝹䜈䛾䝞䜲䜸䝬䝇䝰䝕䝹䛾ᑟධ㻣㻢㻠㻜 ᮧᒣṊᙪᮾிᕤᴗ኱Ꮫ

䝫䝔䞁䝅䝱䝹ホ౯䜢⪃៖䛧䛯ᆅ⇕㈨※฼⏝䛻㛵䛩䜛ᆅᇦ᪋⟇䜈䛾ά⏝ᡭἲ䛾᳨ウ㻣㻤㻠㻝 ⏫ᮧ䚷ᑦ኱㜰኱Ꮫ᳃ᯘ䝞䜲䜸䝬䝇䜶䝛䝹䜼䞊฼⏝ィ⏬ᨭ᥼䛾䛯䜑䛾᝟ሗᢏ⾡䜢ᛂ⏝䛧䛯䝬䝹䝏䝇䜿䞊䝹ᣢ⥆ྍ⬟㈨※㈿Ꮡ㔞ホ౯㻤㻜㻠㻞 㰻⸨ᑗே

⌰⌫኱Ꮫ㉸పᾘ㈝㟁ຊ↓⥺㏻ಙ䝅䝇䝔䝮䛻ྥ䛡䛯ཷಙ䜰䞁䝔䝘㻤㻞㻠㻟 ࿴⏣ᛅᾈ

㟼ᒸ኱Ꮫ䝋䝣䝖䜴䜵䜰↓⥺䜢⏝䛔䛯ὶᫍ䝞䞊䝇䝖㏻ಙ䛾㧗ຠ⋡໬䛻㛵䛩䜛◊✲㻤㻠㻠㻠 㻼㼑㼚㼓㻌㻯㼍㼛㻿㼛㼡㼠㼔㼣㼑㼟㼠㻌㻶㼕㼍㼛㼠㼛㼚㼓㼁㼚㼕㼢㼑㼞㼟㼕㼠㼥࿘㎶⎔ቃ䝕䞊䝍䜢ά⏝䛧䛯䝅䜵䜰䝸䞁䜾⮬ື㐠㌿䝍䜽䝅䞊䛾◊✲㻤㻢㻠㻡 すᮧ䚷㢧

୕㔜኱Ꮫ䝞䜲䜸䜺䝇฼⏝㻴㻞〇㐀཯ᛂჾ䛾㧗ᛶ⬟໬䛻ྥ䛡䛯㐠㌿᮲௳䛾᳨ウ㻤㻤㻠㻢 㔠᳃୺⚈ி㒔኱ᏛᶵᲔⓗᰂ㌾ᛶ䜢♧䛩㏱᫂䜶䜰䝻䝀䝹䛾స〇㻥㻜㻠㻣 ⩚⏣ᨻ᫂

ྡྂᒇᕤᴗ኱Ꮫ

┬䜶䝛䝹䜼䞊ᆺ䜶䞁䝆䞁䛾᤼Ẽί໬ゐ፹䛾◊✲㻥㻞㻠㻤 ┿ᓥ䚷㇏ᮾிᕤᴗ኱Ꮫ

䝘䝜䜼䝱䝑䝥㟁ᴟ䛻䜘䜛⎔ቃゐ፹⣲཯ᛂ䛾᳨ฟ㻥㻠㻠㻥 ᮌୗṊᙪྡྂᒇᕷᕤᴗ◊✲ᡤ ⛥ⷧ⁐ᾮ䛛䜙䛾‵ᘧศ㞳䛻䜘䜛䝟䝷䝆䜴䝮䛾㑅ᢥศ㞳ᅇ཰㻥㻢㻡㻜 ᳃䚷ⱱ⏕኱㜰ᗓ❧኱Ꮫ

ᙉⓗ⛛ᗎ䜢᭷䛩䜛≀㉁䛷䛾≉␗䛺䝗䝯䜲䞁ᵓ㐀䛸ᶵ⬟ᛶ㻥㻤㻡㻝 ࿋䚷ᯇ➉ྡྂᒇᕤᴗ኱Ꮫ

㧗Ᏻ඲ᛶ䞉኱ᐜ㔞㻸㻵㻮㈇ᴟྥ䛡䛾㼀㼕㻛㻿㼚㻘㻌㻹㼛⣔」ྜ⭷䛸䝘䝜䝅䞊䝖≧䛾ᅛయ㟁ゎ㉁䛸䛾䝘䝜✚ᒙ໬㻝㻜㻜㻡㻞 ௒஭ᏹ᫂

៞᠕⩏ሿ኱Ꮫ

䜶䝛䝹䜼䞊䝕䝞䜲䝇䜈䛾ᛂ⏝䛻ྥ䛡䛯㓟໬≀䝘䝜䝤䝻䝑䜽䛚䜘䜃㓄ิయ䛾≉ᛶゎᯒ㻝㻜㻞㻡㻟 ᑠᕝ䚷ㄔ㼂㼕㼐㼥㼍㼟㼕㼞㼕㼙㼑㼐㼔㼕㻵㼚㼟㼠㼕㼠㼡㼠㼑㻌㼛㼒㻌㻿㼏㼕㼑㼚㼏㼑㼍㼚㼐㻌㼀㼑㼏㼔㼚㼛㼘㼛㼓㼥㧗ᶵ⬟ගゐ፹ᛂ⏝䛻ྥ䛡䛯ᒙ≧䝏䝍䞁㓟ሷ䛾⢏Ꮚᚄ≧ไᚚ㻝㻜㻠䛾䛯䜑䛾㻰㻯䝟䝹䝇䜾䝻䞊ᨺ㟁䝥䝷䝈䝬䜢฼⏝䛧䛯┤᥋㉁㔞ศᯒἲ䛾ᵓ⠏㻡㻠⫱ඣఇᬤ䛾䛯䜑
㻞㻜㻞㻝ᖺᗘᐇ᪋

㻺㼛㻚

◊✲௦⾲⪅

ᡤᒓᶵ㛵

◊✲ㄢ㢟ྡ

㡫

㻡㻠 ⯪ὠ㯞⨾⇃ᮏ኱Ꮫⓑ㔠⣔ཬ䜃㖡⣔䝘䝜䝅䞊䝖䛾㻭㻲㻹䛻䜘䜛⾲㠃≧ែほᐹ㻝㻜㻢㻡㻡 ㇂ཱྀ㈗❶ᅜ❧◊✲㛤Ⓨἲே≀䝘䝜䜹䞊䝪䞁䛾㟁Ẽ໬Ꮫⓗάᛶ໬䛻䜘䜛㧗ᛶ⬟䝺䝗䝑䜽䝇䜻䝱䝟䝅䝍䛾๰〇㉁䞉ᮦᩱ◊✲ᶵᵓ㻝㻜㻣㻡㻢 㝞䚷ಇ⥔ᅜ❧ྎ‴኱Ꮫ㻝㻜㻥㻡㻣 ሯ㉺୍ோ

ᅜ❧◊✲㛤Ⓨἲே≀ ཎᏊ⭷㻛ศᏊ⭷䝝䜲䝤䝸䝑䝗䝅䝇䝔䝮䛷䛾㟁Ꮚ䛸䝣䜷䝜䞁䛾ఏᑟ䜢ไᚚ䛩䜛᪂つ㧗ຠ⋡⇕㟁ⷧ⭷㉁䞉ᮦᩱ◊✲ᶵᵓ䛾๰⏕㻝㻝㻝㻡㻤 ᒸᒣ᭸Ꮚ኱ṇ኱Ꮫ㻝㻝㻟㻡㻥 ᮏᶫ䚷ඖ㭯ᒸᕤᴗ㧗➼ᑓ㛛Ꮫ䝢䝁ỈຊⓎ㟁䝅䝇䝔䝮䛾ᐇ⏝໬◊✲ᰯ㻝㻝㻠㻢㻜 ụ⏣ᩄᙪ

ಙᕞ኱Ꮫ෤ᮇ㛫䛻䛚䛡䜛ᑠᆺỈ㌴䛾⟶⌮䝅䝇䝔䝮䛾ᵓ⠏㻝㻝㻢㻢㻝 ྜྷ⏣ᑑ㞝ி㒔኱Ꮫ✚ᴟⓗḞ㝗ᑟධ䛻䜘䜛ගゐ፹㧗ᛶ⬟໬䛾᳨ウ㻝㻝㻤㻢㻞 ➲஭䚷ுᓥ᰿኱Ꮫᕼᅵ㢮ඖ⣲䜢ྵ䜐ᒙ≧」Ỉ㓟໬≀䛻䜘䜛᭷ᐖ㝜䜲䜸䞁྾╔䛸Ⓨග䛻䜘䜛ᐃ㔞䞉ᐃᛶศᯒ㻝㻞㻜㻢㻟 ຍ⸨ⱥᶞᮾ໭኱ᏛỈศゎගゐ፹䛾๻ⓗ䛺άᛶྥୖ䜢┠ᣦ䛧䛯᪂つಟ㣭ἲ䛾㛤Ⓨ㻝㻞㻞㻢㻠 ᳜⏣⣫୍㑻

Ꮫ⩦㝔኱Ꮫ

㧗

㻝㻞㻠

㻢㻡 ᮅ಴⿱௓

ᮾ໭኱Ꮫᾮ┦䜢⏝䛔䛯㓟䝣䝑໬≀䛾ྜᡂ䛸䛭䛾ᶵ⬟㻝㻞㻢㻢㻢 㣤ᑿ᫛୍㑻ಙᕞ኱Ꮫ䜻䝱䝡䝔䞊䝅䝵䞁ᄇὶ䛾㦁㡢䚸ᅽຊὶ㔞≉ᛶ㻝㻞㻤㻢㻣 ᒣᾆ┿୍⫋ᴗ⬟ຊ㛤Ⓨ⥲ྜ኱㔠ᒓ䜺䝷䝇䛾⤌⧊ไᚚ䛻䜘䜛Ỉ⣲྾ⶶᮦᩱ䛾◊✲Ꮫᰯ㻝㻟㻜㻢㻤 ⱝᮡ䚷㝯

ி㒔ᕤⱁ⧄⥔኱Ꮫ┬䜶䝛ᆺගᏛᛂ⏝⤖ᬗ໬䜺䝷䝇䛾స〇䝥䝻䝉䝇䛾◊✲㻝㻟㻞㻢㻥 ୗᔱ䚷ᩔ᪩✄⏣኱Ꮫ

㏱᩿᫂⇕䝅䞊䝖䛾㛤Ⓨ䛻ྥ䛡䛯୰✵䝘䝜⢏Ꮚ䛾⢭ᐦྜᡂ䛸㞟✚㻝㻟㻠㻣㻜 ᒣ⏣᫴ஓ

኱㜰኱Ꮫ

ప

㻝㻟㻢

㻣㻝 ᕝཱྀ᪸ᙪ

㟼ᒸ኱Ꮫ䜺䞊䝛䝑䝖ᆺ㓟໬≀䝸䝏䜴䝮䜲䜸䞁ᅛయ㟁ゎ㉁ⷧ⭷స〇䛻㛵䛩䜛◊✲㻝㻟㻤㻣㻞 ⱝᯘ䚷ᩚᮾிᕤᴗ኱Ꮫ

☢໬≉ᛶ䜢Ⓨ⌧䛩䜛㑄⛣㔠ᒓ䝎䜲䜹䝹䝁䝀䝘䜲䝗⭷䛾Ḟ㝗䞉⢏⏺䛻㛵䛩䜛᩿㠃㻛ᖹ㠃㼀㻱㻹ゎᯒ㻝㻠㻜㻣㻟 㓇஭䚷ᮁ኱㜰኱Ꮫపᾘ㈝㟁ຊ䝅䝘䝥䝇⣲Ꮚ⏝䜰䝰䝹䝣䜯䝇䝯䝰䝸䝇䝍ᮦᩱ䛻䛚䛡䜛㓟⣲✵Ꮝᣲື䛾㼀㻱㻹ゎᯒ㻝㻠㻞㻣㻠 ▼஭䚷⪽ᮾி㟁ᶵ኱Ꮫ

ᨺᑕ⥺䛛䜙㟁Ẽ䜈䛾㧗ຠ⋡䛺┤᥋䜶䝛䝹䜼䞊ኚ᥮䜢ྍ⬟䛻䛩䜛᭷ᶵ༙ᑟయ㻛㻯㻺㼀ⷧ⭷䛾㛤Ⓨ㻝㻠㻠㻣㻡 ᑠᓥ୍ಙ

ᮾ໭኱Ꮫ㢧ᚤ㙾䜢⏝䛔䛯῝⣸እⓎග䝎䜲䜸䞊䝗䛾ගᏛホ౯㻝㻠㻢㻣㻢 బ䚻ᮌ䚷㐍᪂₲኱Ꮫ㉸㧗ឤᗘ᰾䝇䝢䞁ィ䛻䜘䜛㻳㼍㻺⤖ᬗ୰䛾⮬Ⓨศᴟ䛾┤᥋ほᐹ㻝㻠㻤㻣㻣 㝡ᒣ䚷᫂ᮾி኱ᏛỈ⁐ᛶ⤖ᬗ䝇䝫䞁䝆స〇䛻ྥ䛡䛯㻰㻺㻭ᵓ㐀యタィ䛻㛵䛩䜛◊✲㻝㻡㻜㻣㻤 ᪂ᐙᐶṇᮾ໭኱Ꮫගບ㉳ㄏ㟁య䝘䝜ᵓ㐀䛾๰䜛☢Ẽቑᙉሙ䛷䛾䜻䝷䝹᰾ᙧᡂ㻝㻡㻞㻣㻥 ᇼ㒊㝧୍஑ᕞᕤᴗ኱Ꮫ

㟁Ⲵ⛛ᗎㄏ㉳ᙉㄏ㟁య㻾㻲㼑㻞㻻㻠䠄㻾㻦ᕼᅵ㢮ඖ⣲䠅䛻䛚䛡䜛ᒁᡤᵓ㐀㻝㻡㻠㻤㻜 ୰㔝㈗அ

㟼ᒸ኱Ꮫ㻵㻵㻵᪘❅໬≀༙ᑟయᮦᩱ䜢⏝䛔䛯୰ᛶᏊ༙ᑟయ᳨ฟჾ䛾ヨస㻝㻡㻢㓟໬≀䝘䝜䝅䞊䝖䜢฼⏝䛧䛯㧗ᛶ⬟䜶䝛䝹䜼䞊ኚ᥮ᮦᩱ䛾㛤Ⓨ㛗஭ᕷ䛻䛚䛡䜛䝬䜲䜽䝻ỈຊⓎ㟁䝅䝇䝔䝮ᑟධ䛻㛵䛩䜛ᐇ⾜ྍ⬟ᛶㄪᰝ䞉㧗ᅽୗ䛾❅໬཯ᛂ䜢฼⏝䛧䛯᪂つ㓟❅໬≀ගゐ፹ᮦᩱ䛾᥈⣴ᙧᡂ䝩䜲䝇䝷䞊ྜ㔠ⷧ⭷䛾⤖ᬗᵓ㐀䞉≀ᛶホ౯

㻺㼛㻚

◊✲௦⾲⪅

ᡤᒓᶵ㛵

◊✲ㄢ㢟ྡ

㡫

㻤㻝 ᒸ⏣ᡂோ

ᒣཱྀ኱Ꮫ㻳㼍㻺ᇶᯈୖ㟁⏺ຠᯝ䝖䝷䞁䝆䝇䝍䛾ᛶ⬟ホ౯㻝㻡㻤㻤㻞 ຍ⸨ṇྐྡྂᒇᕤᴗ኱Ꮫ

㻿㼕㻯⤖ᬗෆ䛾ᇶᗏ㠃㌿఩㐠ືไᚚ㻝㻢㻜㻤㻟 ඵᮌ㈗ᚿ

⏘ᴗᢏ⾡⥲ྜ◊✲ᡤ 䝘䝜䝇䜿䞊䝹࿘ᮇᵓ㐀䜢᭷䛩䜛⮬↛㉸᱁Ꮚ㓟໬䝏䝍䞁䛾⇕㍺㏦≉ᛶホ౯㻝㻢㻞㻤㻠 ሯᮏ຾⏨኱㜰኱Ꮫ❅໬䜺䝸䜴䝮䛻䛚䛡䜛⤖ᬗᵓ㐀䛾භ᪉ᬗ䛛䜙䛾䝈䝺䛾ᐃ㔞໬㻝㻢㻠㻤㻡 బ⸨ጾ཭

໭ᾏ㐨኱Ꮫග໬Ꮫ䜶䝑䝏䞁䜾ἲ䜢⏝䛔䛯㻳㼍㻺㻙㻹㻻㻿⏺㠃䛻㛵䛩䜛◊✲㻝㻢㻢㻤㻢 ㇂ᕝᬛஅ

኱㜰኱Ꮫ㠀⥺ᙧගᏛ䝕䝞䜲䝇䛾స〇䛸䛭䛾ᛂ⏝㻝㻢㻤㻤㻣 ᐩ⏣༟ᮁ

ᚨᓥ኱Ꮫ䝣䜵䝮䝖⛊䝺䞊䝄䞊↷ᑕ䛻䜘䜛㔠ᒓ㻛㻳㼍㻺⏺㠃ไᚚ䛻㛵䛩䜛◊✲㻝㻣㻜㻤㻤 Ọᯇㅬኴ㑻ᚨᓥ኱Ꮫ㻭㼘㻺୰䛾㻟ḟඖ㌿఩ホ౯ᡭἲ䛻㛵䛩䜛◊✲㻝㻣㻞

6qW´²´

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2D;7: ; x *Øb weÖ01Bk

Mm* ()Ü * Ól [TJGweÖP® ÜµØb-© |(+*]³ * , §¬ÜweÖP®-¡<5?
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JV|(+ YBIG ·´ NBIG ·´9D6%ÀÊÜweÖP®ªÖ'*Ì!. "Ü RÂÈO-©ÜY, Nd, Pr, Sm, Eu Õs EÜ ÜYBIG ·´ NBIG ·´ O*qÜIdL¼ PBIG ·´ÜSBIG ·´ÜEBIG ·´ÈO-©»ÝÀÊ ­^ÌÜ¨o­^'Ä *²(+*4 ¨oH* Ü$  ( ÈOÜ 0Ü7 O-© ha+*)#mf*2D;7:Ãr¨¢¨o Èi_OÜ¨o i_ÈO-©
(Ü ­^¨o­^'Ä *²(+*JF¯ (ÜweÖP®ªÖ-j*'¨o-­^%`$j*ÜØz - °weÖ¨2D;7:%ÜweÖ-j*Ãr¨¢-U} *-©*1  RBIG  ±± ± ±Ms

emu/cm3

MHz/Oe104 erg/cm3

K1

Ku
104 erg/cm3

Keff104 erg/cm3

Y0.5Bi2.5Fe5O12

143.2

19.7

-2.18

1.04

-11.84

Pr0.5Bi2.5Fe5O12

133.5

22.2

-3.29

-0.254-11.45

Nd0.5Bi2.5Fe5O12

147.0

20.4

-2.56

3.26

-10.32

Sm0.5Bi2.5Fe5O12

133.1

21.9

Eu0.5Bi2.5Fe5O12

123.3

20.4

-4.40
-4.40

-1.95
-3.90

-13.08-13.45




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⏝ࡀᮇᚅࡉࢀ࡚࠸ࡿࠋᮏ◊✲ࡢ┠ⓗࡣࠊỈ⁐ᾮ㟁╔ἲ࡟ࡼࡾస〇ࡋࡓ )H1L ྜ㔠ࡢ༢୍☢ᛶࢼࣀ࣡࢖࣮ࣖ࡟࠾ࡅࡿ㟁Ẽⓗ࡞☢Ẽ≉ᛶ࡛࠶ࡿ␗᪉ᛶ☢Ẽ᢬ᢠ $05 ຠᯝ࡜☢ᛶࢼࣀ࣡࢖࣮ࣖᵓ㐀࡜ࡢ┦㛵࡟ࡘ࠸࡚᫂ࡽ࠿࡟ࡍࡿࡇ࡜࡛࠶ࡗࡓࠋᮏሗ࿌࡛ࡣࠊձỈ⁐ᾮ㟁╔ἲ࡛࢔࣑ࣝࢼࢸࣥࣉ࣮ࣞࢺ $7 ୰࡟స〇ࡋࡓ )H1L ྜ㔠ࡢ☢ᛶࢼࣀ࣡࢖࣮ࣖࡢ⤖ᬗᵓ㐀࡜ࢼࣀ࣡࢖࣮ࣖࡢほᐹ⤖ᯝࠊࡲࡓ 6L ᇶᯈୖ࡟༢㞳ࡋࡓ༢୍ )H1L ྜ㔠ࢼࣀ࣡࢖ࣖ
࣮ࡢఏᑟ≉ᛶ࡟ࡘ࠸࡚ሗ࿌ࡍࡿࠋࡲࡓࠊ䐠࣏࣮ࣜ࢝࣎ࢿ࣮ࢺࢸࣥࣉ࣮ࣞࢺ 37 ୰࡟Ỉ⁐ᾮ㟁╔ἲ࡛స〇ࡋࡓ &R ࢼࣀ࣡࢖࣮ࣖࡢ⤖ᬗᵓ㐀࡜☢Ẽ␗᪉ᛶࡢ࢔ࢫ࣌ࢡࢺẚ౫Ꮡᛶ࡟ࡘ࠸࡚ሗ࿌ࡍࡿࠋ
㸰㸬◊✲ෆᐜ࡜ᡂᯝձ ༢୍ )H1L ྜ㔠ࢼࣀ࣡࢖࣮ࣖࡢస〇࡜ఏᑟ≉ᛶホ౯ࣃࣝࢫ㟁╔ἲ࡟ࡼࡾ $7 ࡢ⣽Ꮝ Ꮝᚄ⣙  QP ୰࡟ )H1L ⣽⥺ 㛗ࡉ⣙  ȝP ࢔ࣞ࢖ࢆస〇ࡋࡓࠋ; ⥺ᅇᢡἲ ;5' ࡛⤖ᬗᵓ㐀ゎᯒࠊ᣺ືヨᩱᆺ☢ຊィ 960 ࡛☢Ẽ≉ᛶホ౯ࠊ㉮ᰝ㟁Ꮚ㢧ᚤ㙾 6(0 ࡛ᚤ⣽ᵓ㐀ほᐹࡸ᩿㠃ほᐹࢆ⾜ࡗࡓࠋ$7 ࢆ 1D2+ ⁐ᾮ࡛⁐࠿ࡋࠊ)H1L ⣽⥺࢔ࣞ࢖࠿ࡽ )H1L ⣽⥺ࢆ༢㞳ࡋࠊ6L ᇶᯈୖ࡟ศᩓࡋࡓࠋᚤ⣽ຍᕤ࡟ࡼࡾ
༢㞳ࡋࡓ )H1L ⣽⥺ࡢ୧➃࡟㟁ᴟ 7L  QP &X  QP 7L  QP ࢆ௜ࡅࠊఏᑟ≉ᛶࢆホ౯ࡋࡓࠋᅗ  D ࡟ $7 ෆ࡟స〇ࡋࡓ )H1L ྜ㔠࣡࢖࣮ࣖࡢ ;5' ࡟ࡼࡿ⤖ᬗᵓ㐀ゎᯒ⤖ᯝࢆ♧ࡍࠋ)H1L ྜ㔠ࡢከ⤖ᬗᵓ㐀࡟⏤᮶ࡋࡓࣆ࣮ࢡࢆྠᐃ࡛ࡁࡓࠋࡲࡓ⤖ᬗᏊᚄࡣࠊQP
࡛࠶ࡗࡓࠋᅗ  E ࡟ $7 ෆ࡟స〇ࡋࡓ )H1L ྜ㔠࣡࢖࣮ࣖࡢ 6(0 ࡟ࡼࡿ᩿㠃ほᐹ⤖ᯝࢆ♧ࡍࠋ࣡࢖࣮ࣖࡢ㛗ࡉࡣࠊᖹᆒࡋ࡚⣙ PP ࡛࠶ࡗࡓࠋࡲࡓ 6(0('; ࢚ࢿࣝࢠ࣮ศ
ᩓᆺ ; ⥺ศᯒ⿦⨨ ࡟ࡼࡾ )H1L ྜ㔠࣡࢖࣮ࣖࡢ⤌ᡂศᯒࢆ⾜ࡗࡓ࡜ࡇࢁࠊ)H1L ࡢ⤌3ᡂࡢྜ㔠࣡࢖࣮ࣖࡀᚓࡽࢀ࡚࠸ࡓࠋ960 ࡟ࡼࡾ☢Ẽ᭤⥺ࢆㄪ࡭ࡓ࡜ࡇࢁࠊ☢ᛶࢼࣀ࣡࢖࣮ࣖࡢ⣽⥺▷ᡭ᪉ྥ࡟ᐜ᫆㍈ࡀ࠶ࡿ☢Ẽ᭤⥺ࡀᚓࡽࢀࡓࠋࡇࡢ⤖ᯝࡣࠊ☢Ẽ࣡࢖࣮ࣖෆ࡟✵㝽ࡀ࠶ࡿࡇ࡜ࡀ♧၀࡛ࡁࡓࠋࡲࡓࠊ)H1L ྜ㔠࣡࢖࣮ࣖࡢఏᑟ≉ᛶࢆヨࡳࡓࡀࠊヨᩱ᢬ᢠࡢ್ࡀ኱ࡁࡃ
05 ࢆほ࡛ࡁ࡞࠿ࡗࡓࠋ

௒ᚋࡣࠊヨᩱࡢ㟁╔᭱㐺᮲௳ࡢ᳨ドࡋࠊ☢ᛶࢼࣀ࣡࢖
࣮ࣖෆࡢ✵㝽ࢆῶᑡࡉࡏ
ࡓヨᩱࡢస〇ࡸࠊヨᩱ⾲㠃ࡢࢡ࣮ࣜࢽࣥࢢ࡞࡝ࢆ⾜ࡗࡓヨᩱࢆ⏝࠸࡚ 05
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XVLQJ+\SHU+LJKVSHHG$QDO\VLVRI1XFOHDU(PXOVLRQ)LOP⚄ᡞ኱Ꮫ࣭኱Ꮫ㝔 ே㛫Ⓨ㐩⎔ቃᏛ◊✲⛉㟷ᮌⱱᶞ࣭ᩍᤵ㸪㧗ᶫぬ࣭≉࿨ຓᩍ㸪ᑠ⏣⨾⏤⣖࣭0㸪ຍ⸨ᣅᾏ࣭Ꮫ㒊  ᖺྡྂᒇ኱Ꮫ࣭኱Ꮫ㝔 ⌮Ꮫ◊✲⛉භᲄᏹ⣖࣭◊✲ဨ㸪ᑠᐑᒣᑗᗈ࣭'㸪୰ᮧᝆဢ࣭'㸪ᮡᮧ᪸࣭0㸪୰㔝࣭᪼0 ௚ྡྂᒇ኱Ꮫ࣭㝃ᒓ㧗ᗘィ ᢏ⾡ᐇ㊶ࢭࣥࢱ࣮
୰ᮧගᘅ࣭ᩍᤵ㸪బ⸨ಟ࣭ຓᩍ㸪᳃ᓥ㑥༤࣭≉௵ຓᩍ㸯㸬◊✲┠ⓗࡇࢀࡲ࡛㛤Ⓨࡋ࡚ࡁࡓ✲ᴟࡢ┬࢚ࢿᨺᑕ⥺᳨ฟჾ࡛࠶ࡿ㧗ឤᗘ࣭㧗⢭ᗘཎᏊ᰾஝ᯈ㸦ங๣୪ࡧ࡟㧗⢭ᗘࣇ࢕࣒ࣝ㸧ࢆ㸪᭱᪂㗦ࡢཎᏊ᰾஝ᯈㄞྲྀ⿦⨨ +76 ࢆ⏝࠸ࡓㄞࡳฟࡋ࣭ゎᯒᡭἲࡢ㛤Ⓨࢆ㏻ࡌ࡚Ẽ⌫ᦚ㍕ᆺᏱᐂ⥺࢖࣓࣮ࢪࣥࢢ࡟ᛂ⏝ࡍࡿࠋᮏ◊✲࡛ࡣ㸪ྡྂᒇ኱Ꮫ࡜ඹྠ࡛⾜ࡗ࡚࠸ࡿẼ⌫ᐇ㦂 *5$,1( ࡢᏱᐂ࣐࢞ࣥ⥺࢖࣓࣮ࢪࣥࢢࡢࡓࡵࡢᐇ㝿ࡢཎᏊ᰾஝ᯈࢹ࣮ࢱゎᯒࢆ㏻ࡌ࡚㸪+76 ࢆ⏝࠸ࡓ኱つᶍࢹ࣮ࢱゎᯒࡢᶆ‽ᙧࡢ᏶ᡂᗘࢆ㧗ࡵࡿᅗ 㻝㻦㻌 ㉸㧗㏿㣕㊧ㄞྲྀ⿦⨨ 㻴㼀㻿㻌࡜࡜ࡶ࡟᪂ࡓ࡞ᡭἲࡢ㛤Ⓨ࡟ྲྀࡾ⤌ࡴࠋ㸰㸬◊✲ෆᐜ࡜ᡂᯝ
 ᖺ  ᭶࡟࣮࢜ࢫࢺࣛࣜ࢔࡟࠾࠸࡚ཎᏊ᰾஝ᯈ࠿ࡽ࡞ࡿ㧗ゅᗘศゎ⬟ Ȗ ⥺ᮃ㐲㙾ࢆẼ⌫࡟ᦚ㍕ࡋᏱᐂ࣐࢞ࣥ⥺ほ ᐇ㦂ࢆᐇ᪋ࡋ㸪 +76 ࡟ࡼࡾཎᏊ᰾஝ᯈ⣙  ᖹ⡿ࡢㄞྲྀࢆ⾜࠸㣕㊧ࢹ࣮ࢱࡢゎᯒࢆ㐙⾜ࡋࡓࠋ+76ࡢࢫࢸ࣮ࢪࡢྍື⠊ᅖࡀࣇ࢕࣒ࣝࡢࣘࢽࢵࢺࢧ࢖ࢬ࡟㍑࡭࡚ᑠࡉ࠸ࡓࡵ࡟㸪㸯ᯛࡢࣇ࢕࣒ࣝࢆ  ࡞࠸ࡋ  ࡢ࢚ࣜ࢔࡟ศ๭ࡋ࡚཰㞟ࡋࡓࢹ࣮ࢱࢆ㸪ቃ⏺㒊ࡢ࣮࢜ࣂ࣮ࣛࢵࣉ࢚ࣜ࢔࡛ྲྀᚓࡉࢀ࡚࠸ࡿྠ୍㣕㊧ࡢࢹ࣮ࢱࢆ౑
⏝ࡋ࡚ྜయࡉࡏࡿࡇ࡜࡛ඖࡢࣘࢽࢵࢺࢧ࢖ࢬ඲㠃࡟ࢃࡓࡿࡦ࡜ࡘ࡞ࡀࡾࡢࢹ࣮ࢱ࡟෌ᵓ⠏ࡋ㸪ࡑࢀࡽࢆ⣙ ᯛ✚ࡳ㔜ࡡࡓࢥࣥࣂ࣮ࢱ㒊ࡢ୰࡛ࡢ࣐࢞ࣥ⥺཯ᛂࢆ᳨ฟࡍࡿゎᯒᡭἲࢆ☜❧ࡋࡓࠋȚЍHH཯ᛂࢆ㑅ࡧฟࡋ㸪㟁Ꮚ࣭㝧㟁Ꮚࡑࢀࡒࢀࡢ㐠ື㔞ࢆ ᐃࡋぶ࣐࢞ࣥ⥺ࡢ࢚ࢿࣝࢠ࣮࡜᳨ฟჾෆ࡛ࡢධᑕゅᗘࢆ෌ᵓᡂࡋࡓࠋ
ࢥࣥࣂ࣮ࢱ㒊ࡢୗὶഃ࡟㓄⨨ࡋࡓከẁࢩࣇࢱ࣮࡟ࡼࡿࢱ࢖࣒ࢫࢱࣥࣉᶵᵓࡢゎᯒ࡟ࡼࡾྛ࣐࢞ࣥ⥺࢖࣋ࣥࢺ࡟ᑐࡋ࡚ࢱ࢖࣒ࢫࢱࣥࣉฎ⌮ࢆ⾜ࡗࡓࠋࡑࡢࢱ࢖࣒ࢫࢱࣥࣉ᝟ሗ࡟ᇶ࡙ࡁ㸪࣐࢞ࣥ⥺ࡢࢥࣥࣂ࣮ࢱෆ࡛ࡢධᑕゅᗘ࡜ࢹ࢖ࢱ࢖࣒ࢫࢱ࣮࣓࢝ࣛ࠿ࡽᚓࡽࢀࡿᮃ㐲㙾ࡢኳ⌫࡟ᑐࡍࡿጼໃ᝟ሗ࡜ࢆ⥲ྜࡍࡿࡇ࡜࡟ࡼࡾ㸪ಶࠎࡢ࣐࢞ࣥ⥺ࡢ฿᮶᪉ྥࢆኳ⌫ୖ࡟࣐ࢵࣉࡋࡓࠋࡇ࠺ࡋࡓゎᯒ࡟ࡼࡾ㸪᪤▱ࡢ㧗㍤ᗘ࣐࢞ࣥ⥺ኳయ࡛࠶ࡿ 9HOD

7ࣃࣝࢧ࣮ࢆ⤖ീࡍࡿࡇ࡜࡟  ᖺᗘ୰࡟ᡂຌࡋࡓࡀ㸪 ᖺᗘࡣゎᯒࡢࡉࡽ࡞ࡿᨵၿ࡟ྲྀࡾ⤌ࢇࡔࠋ୍ᕠ┠ࡢゎᯒ࡛ࡣᚋᅇࡋ࡟ࡋ࡚࠸ࡓ㒊ศࡢࣜ࢝ࣂ࣮࡟ࡼࡿ཰㞟ຠ⋡ࡢቑ኱ࡸ㸪฼⏝ࡋ࡚࠸࡞࠿ࡗࡓ᝟ሗࡢά
⏝࡟ࡼࡿࣂࢵࢡࢢࣛ࢘ࣥࢻࡢ๐ῶ࡟ࡼࡾ㸪ಙྕ⤫ィࡢቑ኱ࡸಙྕ㞧㡢ẚࡢྥୖࢆࡣ࠿ࡗࡓࠋࡑ࠺ࡋ࡚㔞ⓗ㉁ⓗ࡟ᨵၿࡉࢀࡓࢹ࣮ࢱ㞟ᅋ࡟ᑐࡋ࡚㸪࢖࣋ࣥࢺࡢ᳨ฟჾෆ࡛ࡢᗙᶆ࡜ࢬࣞࡢ┦㛵ศᯒ࡞࡝࡟ࡼࡾ㸪᳨ฟჾࡢ࢔ࣛ
࢖࣓ࣥࢺࡢ⣔⤫ⓗ࡞ࢬࣞࢆ᳨ฟࡍࡿࡇ࡜ࡀྍ⬟࡜࡞ࡗࡓࠋලయⓗ࡟ࡣ㸪ࢥࣥࣂ࣮ࢱ㒊ࡢ᳨ฟჾ㍈ࡢ࢜ࣇࢭࢵࢺ㸪᳨ฟჾኳ㡬㍈ࡲࢃࡾࡢᅇ㌿㸪᳨ฟჾࡢኳ㡬㍈᪉ྥࡢఙ⦰࡞࡝࡟ࡘ࠸࡚⣔⤫ⓗ࡞⿵ṇࢆ᪋ࡍࡇ࡜ࡀྍ⬟࡜࡞ࡗࡓࠋ
ࡇࢀࡽࡢᨵၿࢆ᪋ࡋࡓᚋࡢ 9HOD ࣃࣝࢧ࣮࿘㎶ࡢ࣐࢞ࣥ⥺ࡢ฿᮶᪉ྥศᕸࢆᅗ㸰࡟♧ࡍࠋᅗ㸱࡟ࡣ㸪9HOD ࣃࣝࢧ࣮ࡢ᪉ྥ࡟ᑐࡍࡿ UDGLDO ゅᗘศᕸࢆᶓ㍈ࢆTࡢ㸰஌㸦୍ᵝ࡞ࣂࢵࢡࢢࣛ࢘ࣥࢻࡣỈᖹ㸧࡟ࡋ࡚♧ࡍࠋ࢜ࣞࣥࢪⰍࡢ◚⥺࡛♧ࡋࡓⅬ※ࢆ௬ᐃࡋࡓࢩ࣑࣮ࣗࣞࢩࣙࣥ᭤⥺࡜Ⰻࡃྜ࠺ศᕸࡀ☜ㄆ࡛ࡁ㸪ୡ⏺᭱㧗ゎീᗘ࡛
V௨ୖࡢ᭷ពᗘ࡛ࡢ᳨ฟ࡟ᡂຌࡋࡓࠋ

ᅗ䠏㻦㻌 䜺䞁䝬⥺฿᮶᪉ྥ䛾 UDGLDO ศᕸ䠄(J!0H9䠈㻌ᶓ㍈䛿 9HOD 䝟䝹䝃䞊䛻ᑐ䛩䜛ゅᗘT䛾䠎஌䠅㻌ᅗ䠎㻦㻌㼂㼑㼘㼍 䝟䝹䝃䞊࿘㎶䛷䛾䜺䞁䝬⥺฿᮶᪉ྥศᕸ
䠄㉥㐨ᗙᶆ䠈(J!0H9䠅㻌ḟࡢẼ⌫ᐇ㦂࡜ࡋ࡚㸪㛤ཱྀ㠃✚ P ࡢ኱㠃✚ᮃ㐲㙾ࣘࢽࢵࢺࢆ」ᩘᦚ㍕ࡋ࡚ࡢ⛉Ꮫほ ࡢ㛤ጞ࡜࡞ࡿẼ⌫ᐇ㦂ࢆ  ᖺ᫓࡟࣮࢜ࢫࢺࣛࣜ࢔࡟࡚ᐇ᪋ࡍࡿࡇ࡜ࡀ -$;$ ࡟࡚᥇ᢥࡉࢀ࡚࠸ࡿࠋங๣ࡸࣇ࢕࣒ࣝࡢ〇㐀ࡣ㸪ྡྂᒇ኱Ꮫ࡛ᘓタ୰ࡢタഛࢆᮏ᱁ⓗ࡟ᐇ㊶ᢞධࡍࡿᐇ㦂࡜࡞ࡿࠋྠ᫬୪⾜࡛㸪኱ᮃ㐲㙾ࣘࢽࢵࢺࡢࡓࡵࡢ
ከẁࢩࣇࢱ࣮ࡢ㛤Ⓨ࠾ࡼࡧࢫࢱ࣮࣓࢝ࣛࡢᨵⰋࢆ⚄ᡞ኱Ꮫ࡛㸪ᶞ⬡⭷ࢆ฼⏝ࡋࡓ㛗⧛ᆺ୚ᅽᐜჾࢦࣥࢻࣛࡢ㛤Ⓨࢆྡྂᒇ኱Ꮫ࡛ࡑࢀࡒࢀ㐍ࡵ㸪ࣇࣛ࢖ࢺࣔࢹࣝࡀᅛࡲࡾࡘࡘ࠶ࡿࠋ
㸦ᅗ㸲㸪ᅗ㸳㸧ᅗ㸲㸸᪂ᆺ࣮࣮ࣟࣛᘧከẁࢩࣇࢱ࣮ࣇࣛ࢖ࢺࣔࢹࣝ㻌ᅗ㸳㸸ᶞ⬡⭷〇㛗⧛ᆺ㢼⯪ᘧ୚ᅽᐜჾࢦࣥࢻࣛ㻌8࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ᅜ㝿఍㆟㸼
࣭67DNDKDVKLIRU*5$,1(FROODERUDWLRQ㸪³3UHFLVHKLJKHQHUJ\JDPPDUD\REVHUYDWLRQVLQ*5$,1(ODWHVWUHVXOWVRQEDOORRQERUQHH[SHULPHQWDQGQH[WIXWXUHH[SHULPHQWV´㸪&7$-DSDQZRUNVKRS㸪UHPRWH㸪
࣭6 7DNDKDVKL IRU *5$,1( FROODERUDWLRQ㸪³*5$,1( SURMHFW 5HVXOWV RQ  EDOORRQERUQH H[SHULPHQW DQGEDOORRQERUQHH[SHULPHQWVLQDQGIXWXUH´㸪UG&263$56FLHQWLILF$VVHPEO\㸪UHPRWH㸪
࣭<1DNDPXUDIRU*5$,1(FROODERUDWLRQ㸪³*5$,1(SURMHFW)OLJKWGDWDDQDO\VLVRQEDOORRQERUQHH[SHULPHQW
IRUSUHFLVHO\FRVPLFJDPPDUD\REVHUYDWLRQ´㸪UG&263$56FLHQWLILF$VVHPEO\㸪UHPRWH㸪

㸺ᅜෆ఍㆟㸼
࣭᪥ᮏ≀⌮Ꮫ఍⛅Ꮨ኱఍䠈䜸䞁䝷䜲䞁㛤ദ䠈
භᲄᏹ⣖ IRU*5$,1(FROO䠈*5$,1( Ẽ⌫ᐇ㦂䛻䛚䛡䜛 VXE*H9 ኱Ẽ䜺䞁䝬⥺䝇䝨䜽䝖䝹 ᐃ୰ᮧᝆဢ IRU*5$,1(FROO䠈*5$,1( ィ⏬䠖 ᖺẼ⌫ᐇ㦂䝣䝷䜲䝖䝕䞊䝍䛷䛾䜺䞁䝬⥺ほ ᛶ⬟ホ౯㧗ᶫぬ IRU*5$,1(FROO䠈*5$,1( ィ⏬䠖 ᖺẼ⌫ᐇ㦂䛾᭱᪂⤖ᯝሗ࿌䛚䜘䜃ḟᮇẼ⌫ᐇ㦂ᒎᮃᑠ⏣⨾⏤⣖ IRU*5$,1(FROO䠈*5$,1( ィ⏬䠖ḟᮇẼ⌫ᐇ㦂䛻ྥ䛡䛯᪂ᆺከẁ䝅䝣䝍䞊䛾㛤Ⓨ࣭኱Ẽ⌫䝅䞁䝫䝆䜴䝮䠈䜸䞁䝷䜲䞁㛤ദ䠈㧗ᶫぬ IRU*5$,1(FROO䠈*5$,1( ィ⏬䠖 ᖺẼ⌫ᐇ㦂䛾᭱᪂⤖ᯝሗ࿌㟷ᮌⱱᶞ IRU*$,15(FROO䠈*5$,1( ィ⏬䠖䝻䞊䝗䝬䝑䝥䛸ḟᮇ㇦ᕞẼ⌫ᐇ㦂ᑠᐑᒣᑗᗈ IRU*5$,1(FROO䠈*5$,1( ィ⏬䠖ḟᮇẼ⌫ᐇ㦂䛻ྥ䛡䛯኱㠃✚䜶䝬䝹䝅䝵䞁ᮃ㐲㙾䛾㛤Ⓨᑠ⏣⨾⏤⣖ IRU*5$,1(FROO䠈*5$,1( ィ⏬ḟᮇẼ⌫ᐇ㦂䛻ྥ䛡䛯᪂ᆺከẁ䝅䝣䝍䞊䛾㛤Ⓨ࣭භᲄᏹ⣖ IRU *5$,1( FROO䠈³$WPRVSKHULF *DPPDUD\ 2EVHUYDWLRQ RQ *5$,1(  %DOORRQ ([SHULPHQW DQG&RPSDULVRQ ZLWK +..0 0RGHO´䠈᪂Ꮫ⾡㡿ᇦࠕࢽ࣮ࣗࢺࣜࣀ࡛ᣅࡃ⣲⢏Ꮚ࡜Ᏹᐂࠖ◊✲఍䠈䜸䞁䝷䜲䞁㛤ദ䠈䠈䠄%HVW3RVWHU$ZDUG ཷ㈹䠅࣭㧗ᶫぬ IRU*5$,1(FROO䠈*5$,1( ィ⏬䠖 ᖺ㇦ᕞẼ⌫ᐇ㦂䛾᭱᪂⤖ᯝ䛚䜘䜃ḟᮇ䞉ᑗ᮶Ẽ⌫ᐇ㦂䛾ᒎᮃ䠈Ᏹᐂ⛉Ꮫ䝅䞁䝫䝆䜴䝮䠈䜸䞁䝷䜲䞁㛤ദ䠈
࣭᪥ᮏ≀⌮Ꮫ఍➨  ᅇᖺḟ኱఍ 䜸䞁䝷䜲䞁㛤ദ㧗ᶫぬ IRU*5$,1(FROO䠈*5$,1( ィ⏬䠖 ᖺẼ⌫ᐇ㦂䛾᭱᪂⤖ᯝ䛚䜘䜃ḟᮇẼ⌫ᐇ㦂䛾ᒎᮃභᲄᏹ⣖ IRU*5$,1(FROO䠈*5$,1( ィ⏬䠖ḟᮇẼ⌫ᐇ㦂䛻ྥ䛡䛯኱㠃✚䜶䝬䝹䝅䝵䞁ᮃ㐲㙾䛾㛤Ⓨ⌧≧ᑠ⏣⨾⏤⣖ IRU*5$,1(FROO䠈*5$,1( ィ⏬䠖ḟᮇẼ⌫ᐇ㦂䛻ྥ䛡䛯᪂ᆺከẁ䝅䝣䝍䞊䛾㛤Ⓨ୰ᮧᝆဢ IRU*5$,1(FROO䠈*5$,1( ᖺẼ⌫ᐇ㦂䛻䛚䛡䜛䜶䝬䝹䝅䝵䞁ᮃ㐲㙾䛾䜺䞁䝬⥺ほ ᛶ⬟ホ౯࣭㧗ᶫぬ IRU*5$,1(FROO㸪㧗࢚ࢿࣝࢠ࣮࣐࢞ࣥ⥺⢭ᐦほ ᐇ㦂 *5$,1(㸸 ᖺẼ⌫ᐇ㦂ࡢ᭱᪂⤖ᯝ࠾ࡼࡧḟᮇẼ⌫ᐇ㦂ࡢᒎᮃ㸪᪥ᮏኳᩥᏛ఍ᖺ఍㸪࢜ࣥࣛ࢖ࣥ㛤ദ㸪
࣭㧗ᶫぬ IRU *5$,1( FROO䠈*5$,1( ィ⏬䠈0H9 䜺䞁䝬⥺䝸䝃䞊䝏䜾䝹䞊䝥䝭䞊䝔䜱䞁䜾䠈䜸䞁䝷䜲䞁㛤ദ䠈
࣭㧗ᶫぬ IRU*5$,1(FROO䠈*5$,1( ィ⏬䠈&5& ᑗ᮶ィ⏬䝍䜴䞁䝭䞊䝔䜱䞁䜾䠈䜸䞁䝷䜲䞁㛤ദ䠈

9ู⣬ᵝᘧ㸰㸫㸰㝧Ꮚ⥺἞⒪࡟࠾ࡅࡿయෆ⥺㔞ศᕸࡢィἲࡢ㛤Ⓨ

Development of in vivo dose measurement system for proton therapy◊✲௦⾲⪅ ṓ⸨฼⾜࣭ྡྂᒇᕷ❧す㒊་⒪ࢭࣥࢱ࣮ྡྂᒇ㝧Ꮚ⥺἞⒪ࢭࣥࢱ࣮࣭㝧Ꮚ⥺἞⒪≀⌮⛉࣭ಀ㛗◊✲ศᢸ⪅ ᮌᮧ඘ᏹ࣭ྡྂᒇᕷ❧す㒊་⒪ࢭࣥࢱ࣮ྡྂᒇ㝧Ꮚ⥺἞⒪ࢭࣥࢱ࣮࣭㝧Ꮚ⥺἞⒪≀⌮⛉࣭ᢏᖌ(་Ꮫ≀⌮)◊✲ᡤᢸᙜᩍဨ ୰ᮧගᘅ࣭ྡྂᒇ኱Ꮫ࣭
ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ࣭㧗ᗘィ ᢏ⾡ᐇ㊶ࢭࣥࢱ࣮⣲⢏Ꮚィ 㒊࣭ᩍᤵ◊✲ᡤᢸᙜᩍဨ బ⸨ಟ࣭ྡྂᒇ኱Ꮫ࣭
ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ࣭㧗ᗘィ ᢏ⾡ᐇ㊶ࢭࣥࢱ࣮⣲⢏Ꮚィ 㒊࣭ຓᩍ㸯㸬◊✲┠ⓗ 㝧Ꮚ⥺ࡸⅣ⣲⥺ࢆ⏝࠸ࡓ⢏Ꮚ⥺἞⒪࡛ࡣࠊࣈࣛࢵࢢࣆ࣮ࢡ≉ᛶࢆά࠿ࡋ࡚ࠊX ⥺἞⒪ࡼࡾࡶ⭘⒆࡬ࡢ⥺㔞ࢆ㞟୰ࡉࡏࡿࡇ࡜ࡀ࡛ࡁࡿࡀࠊࡑࡢ཯㠃ࠊ㣕⛬ࡢㄗᕪ࡟ࡼࡿࠊ㔜せ⮚ჾࡢᨺᑕ⥺㞀ᐖࡢࣜࢫࢡࢆᖖ࡟కࡗ࡚࠸ࡿࠋࡑࡢࡓࡵࠊᝈ⪅యෆࡢ⥺㔞ศᕸࢆྍど໬ࡍࡿᢏ⾡ࡀᮃࡲࢀ࡚࠾ࡾࠊࡑࡢࡓࡵࡢ᭷ຊ࡞ᡭἲࡀ⢏Ꮚ⥺↷ᑕ࡟కࡗ࡚⏕ᡂࡍࡿ༶Ⓨ࣐࢞ࣥ⥺ࢆ᳨ฟࡍࡿ᪉ἲ࡛࠶ࡿࠋᮏ◊✲ࡢ┠ⓗࡣཎᏊ᰾஝ᯈࢆ⏝࠸ࡓ༢୍ගᏊᨺᑕ᩿ᒙ᧜ᙳ(SPECT: Single Photon Emission Computed Tomography)ࢩࢫࢸ࣒ࢆ㛤Ⓨࡋࠊ༶Ⓨ࣐࢞ࣥ⥺ࡢ᳨ฟ࡟ࡼࡾ 3 ḟඖ⥺㔞ศᕸࢆྍど໬ࡍࡿࡇ࡜࡛࠶ࡿࠋ

㸰㸬◊✲ෆᐜ࡜ᡂᯝ ௧࿴ 2 ᖺᗘࡣࠊ᳨ฟჾࢩࢫࢸ࣒ࡢᇶᮏᛶ⬟ࢆ᳨ドࡍࡿࡓࡵࡢ㟁Ꮚ⥺ࡢࢸࢫࢺ↷ᑕࡢ᳨ウࢆ⾜ࡗࡓࠋྡྂᒇᕷ❧す㒊་⒪ࢭࣥࢱ࣮ࡢᨺᑕ⥺἞⒪⏝ࣜࢽ࢔ࢵࢡࢆ⏝࠸ࡿࡇ࡜ࢆ᝿
ᐃࡋࠊ4 MeV 㟁Ꮚ⥺ࡢ࢚ࢿࣝࢠ࣮ࢫ࣌ࢡࢺࣝࢆࣔࣥࢸ࢝ࣝࣟࢩ࣑࣮ࣗࣞࢩࣙࣥ࡟ࡼࡾ⟬ฟࡋࡓࠋᐇ㦂ࡢࢭࢵࢺ࢔ࢵࣉࡣᅗ 1 ࡢࡶࡢ࡜ࡋࡓࠋᶓ᪉ྥ࡟ᖹᆠ࡞↷ᑕ㔝ࢆࡘࡃࡿࡓࡵ
࡟ᩓ஘యࢆᤄධࡋ࡚↷ᑕࡍࡿࡼ࠺࡟࡞ࡗ࡚࠸ࡿࠋࢺࣛࢵࢡᐦᗘࢆไᚚࡍࡿࡓࡵ࡟ࠊ✵୰ࡢ㣕㊥㞳ࢆ 1 m ࠿ࡽ᭱኱ 3m ࡲ࡛㛗ࡃࡋ࡚↷ᑕࡍࡿࡇ࡜ࢆ᳨ウࡋࡓࠋ

ᅗ 1. ࢭࢵࢺ࢔ࢵࣉᴫ␎ᅗ

10ࢩ࣑࣮ࣗࣞࢩ࡛ࣙࣥࡣ✵Ẽ 1 m ㏻㐣ᚋࡢ఩⨨࡛ࡣᩓ஘య࠶ࡾ࡜࡞ࡋࡢ୧᪉ࠊࡉࡽ࡟ᩓ஘
య࠶ࡾ࡛✵Ẽ 2 m, 3 m ㏻㐣ᚋࡢ఩⨨࡟࠾ࡅࡿᶓ᪉ྥ఩⨨ศᕸ࡜࢚ࢿࣝࢠ࣮ࢫ࣌ࢡࢺࣝࢆホ౯ࡋࡓࠋᅗ 2 ࡣ఩⨨ศᕸࠊᅗ 3 ࡣ㟁Ꮚ⥺ࡢ࢚ࢿࣝࢠ࣮ศᕸ࡛࠶ࡿࠋᩓ஘యࡢᤄධ࡟
ࡼࡾࢺࣛࢵࢡᐦᗘࡀ 1/3 ⛬ᗘ࡟ῶ⾶ࡋࠊࡉࡽ࡟✵୰ࡢ㣕㊥㞳ࢆ 1 m ࠿ࡽ 3 m ࡟ࡍࡿࡇ࡜
࡛ 1/20 ⛬ᗘ࡟࡞ࡿࡇ࡜ࡀศ࠿ࡗࡓࠋࡲࡓࠊᩓ஘యࡢᤄධ࡟ࡼࡾࣆ࣮ࢡࡢ࢚ࢿࣝࢠ࣮ࡀ
0.01 MeV పࡃ࡞ࡾࠊࡉࡽ࡟✵Ẽ 1 m ࡟ࡘࡁ 0.2 MeV ⛬ᗘࡢ࢚ࢿࣝࢠ࣮ࡀῶ⾶ࡍࡿ࡜࡜ࡶ࡟✵Ẽࡢ✵୰㣕㊥㞳ࡢቑຍ࡟క࠸ࠊప࢚ࢿࣝࢠ࣮ᡂศࡀቑຍࡍࡿࡇ࡜ࡀศ࠿ࡾࠊ౛࠼
ࡤ 3 m ㏻㐣ᚋࠊࢺࣛࢵࢡࡢ 11%ࡣ 3 MeV ᮍ‶࡜࡞ࡿࠋᅗ 3. ࢚ࢿࣝࢠ࣮ศᕸ

ᅗ 2. ᶓ᪉ྥ఩⨨ศᕸ௒ᅇࡢ⤖ᯝ࡟ᇶ࡙ࡁࠊࢸࢫࢺ↷ᑕࡢ᮲௳ࢆ᳨ウࡋ࡚࠸ࡃࠋ

࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ཎⴭㄽᩥ㸼
ヱᙜ࡞ࡋ㸺ᅜ㝿࣭ᅜෆ఍㆟㸼ヱᙜ࡞ࡋ㸺⏘ᴗ㈈⏘ᶒ㸼ヱᙜ࡞ࡋ11ู⣬ᵝᘧ㸰㸫㸰ྂ௦♫఍࡟࠾ࡅࡿ㈨※㓄⤥ࢿࢵࢺ࣮࣡ࢡࡢᩘ್ゎᯒ[2]Analysis of network system for resource in ancient society[2]◊✲௦⾲⪅ す⸨Ύ⚽ ዉⰋ┴❧᷃ཎ⪃ྂᏛ◊✲ᡤ ᢏ⾡࢔ࢻࣂ࢖ࢨ࣮
◊✲ศᢸ⪅  ▼㯮຾ᕫ࣭ዉⰋ┴❧᷃ཎ⪃ྂᏛ◊✲ᡤ࣭ඹྠ◊✲ဨ         㛗⦖┤ᓫ ྡྂᒇ኱Ꮫ ◊✲ဨ◊✲ᡤᢸᙜᩍဨ ୰ᮧගᘅ࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱࢩࢫࢸ࣒◊✲ᡤᩍᤵ
1 ◊✲┠ⓗ㸸⌧௦࡟࠾࠸࡚㈨※ࡸ≀ὶ࡟㛵ࡍࡿ㧗ຠ⋡ࠊపࣜࢫࢡ࡞㒔ᕷ㛫ࢿࢵࢺ࣮࣡ࢡ
⥙ࢆᙧᡂࡍࡿࡇ࡜ࡣ㔜せ࡞ࡇ࡜࡛࠶ࡿࠋ≉࡟᭱㏆࡛ࡣ⅏ᐖࡸᅜ㝿ⓗ࡞ᨻ᝟୙Ᏻ࡟ࡼࡗ࡚
≀ὶࢿࢵࢺ࣮࣡ࢡࡀ୍㒊◚ቯࢆཷࡅࡓሙྜ࡛ࡶᶵ⬟ࡍࡿࡼ࠺࡞ࢩࢫࢸ࣒ᵓ⠏ࡢせồࡀቑࡋ࡚࠸ࡿࠋࡋ࠿ࡋࡇࡢࡼ࠺࡞㞀ᐖࡢከ࠸୰࡛ࡢࢿࢵࢺ࣮࣡ࢡᙧᡂࡣྂ௦♫఍࡟࠾࠸࡚
ࡣࡼࡾ㢧ⴭ࡛࠶ࡾࠊ᭱㐺໬࡟ⱞᚰࡋ࡚࠸ࡓ࡜⪃࠼ࡽࢀࡿࠋࡑࢀࢆ᫂ࡽ࠿࡟ࡍࡿࡓࡵ࡟ࠊ
ᩘᏛⓗࢢࣛࣇ⌮ㄽࢆ⏝࠸࡚ྂ௦㞟ⴠࡢ⤖ࡧࡘࡁࢆᅗ໬ࡋࡓࠋࡲࡓࠊ⪃ྂᏛ◊✲࡟࠾࠸࡚ࡶ㒔ᕷ㛫஺ὶࡢホ౯ࡣ㔜せ࡞ㄢ㢟࡛࠶ࡿࠋ௒ᅇࠊሗ࿌ࡉࢀࡓฟᅵᅵჾ㔞ࢆࡶ࡜࡟ 㞟ⴠ㛫ࡢ㛵ಀࢆᐃ㔞໬ࡍࡿ◊✲ࢆ⾜ࡗࡓࠋࡲࡓࠊ◊✲ᮇ㛫ෆ࡟ୡ⏺ⓗ࡞ࢥࣟࢼ⚝࡟ࡳࡲࢃࢀ
⌧ᅾࡶ⥆࠸࡚࠸ࡿ≧ἣ࡛࠶ࡿࠋ௒ᅇࡢ◊✲ࢆᛂ⏝ࡋࠊᅵჾࡢฟᅵ㔞ࢆឤᰁ⑕ࡢឤᰁⓎ⏕ᩘ࡟⨨ࡁ᥮࠼ࡿࡇ࡜࡛࡝ࡢࡼ࠺࡞ࢿࢵࢺ࣮࣡ࢡ࡛ឤᰁ⑕ࡀ」ᩘࡢ㒔ᕷ㛫࡟ᗈࡀࡗ࡚࠸ࡿ࠿ࡢホ౯ࢆ⾜ࡗࡓࠋ2 ◊✲ෆᐜ:ඹ㏻ࡢฟᅵᅵჾ㔞ࡢ࿴ࡀ኱ࡁ࡞㞟ⴠྠኈࡣ࡞ࢇࡽ࠿ࡢ㛵ಀࡀ࠶ࡿ࡜ᐃ⩏ࡍࡿࠋࡑࡢ௬ᐃࡢࡶ࡜ ࡛ࠊ࠶ࡿ✀㢮ࡢᅵჾࡢฟᅵ㔞ࡢ࿴ࡀ≉࡟㧗࠸㞟ⴠྠኈࢆ⤖ࡧ௜ࡅࡿࡇ࡜ࡀ࡛ࡁࡿࠋ౛࡜ࡋ࡚ྂ௦஑ᕞࡢ㞟ⴠ࡟㛵ࡋ࡚࠸ࢁ࠸ࢁ࡞ ᅵჾ࡟ᑐࡋ࡚ࡇࢀࢆ⾜࠺ࡇ࡜࡛㞟ⴠ A㹼G ࡟㛵ࡋ࡚ᅗ 1 ᕥࡢࡼ࠺࡞㛵ಀᅗࢆᚓࡓࠋB ࠿ࡽ D ࡣ┤᥋࡟ࡣ⤖ࡤࢀ࡚࠸࡞࠸ࡀ E ࡸ F ࢆ ⤒⏤ࡍࡿࡇ࡜࡛⤖ࡤࢀ࡚࠸ࡿࠋྛ㞟ⴠࡈ࡜ࡢ㛵ಀࡢᗘྜ࠸ࡣ 2⪅㛫௨እࢆ⤒⏤ࡍࡿ⤒㊰ࡶ⪃࠼࡚ᅗ 1 ྑୖࡢࡼ࠺࡞┦ᑐ್ࢆᚓࡓ(್ࡀᑠࡉ࠸࡯࡝㛵ಀࡀὸ࠸)ࠋࡇࢀࡣ㞟ⴠ㛫ࡢ⥺ࢆ㟁Ẽᅇ㊰ࡢ᢬ᢠ࡛࠶ࡿ࡜ࡋ࡚ࠊྛ㞟ⴠ㛫ࡢ᢬ᢠ್ࢆ

ࡗ

࡚㏫ᩘࢆ࡜ࡿࡢ࡜ᩘᏛⓗ࡟ྠࡌホ౯ࢆࡋ࡚࠸ࡿࠋ௒ᅇࡣᐇ㝿࡟ᅇ㊰ࢆ⤌ࢇ࡛㟁ᅽィ࡛᢬ᢠࢆࡿࡇ࡜࡛ᩘ್ࢆᚓࡓࠋྠᵝ࡟ᮾᾏᆅ᪉࿘㎶ࡢྂ௦ࡢ㑇㊧࡟㛵ࡋ࡚ࡶホ౯ࢆ⾜ࡗࡓ(ᅗ 2)ࠋࡉࡽ࡟ 2020 ᖺ෤ᮇࡢ᪂ᆺࢥࣟࢼ࢘࢖ࣝࢫ࠾ࡼࡧ௚ࡢឤᰁ⑕ࡢⓎ⏕௳ᩘࢆ⏝࠸࡚㒔ᕷ㛫࡛࡝ࡢࡼ࠺࡞ឤᰁࢿࢵࢺ࣮࣡ࢡࢆ⠏࠸࡚ࡋࡲࡗ࡚࠸ࡿࡢ࠿ࢆホ౯ࡋࡓ(ᅗ 3)ࠋ
3 ⤖ᯝ:ࡑࢀࡒࢀࡢࢿࢵࢺ࣮࣡ࢡࢆ௨ୗࡢࡼ࠺࡟ᅗ♧࡛ࡁࡓࠋࡉࡽ࡟ྛᆅᇦ(㑇㊧)ࡈ࡜ࡢ
㛵ಀࡢ῝ࡉࡢᩘ್ࢆᚓ(್ࡀᑠࡉ࠸ࡶࡢ࡯࡝㛵ಀࡀὸ࠸)ࠊ㡰ิ໬ࡋࡓࠋ
௒ᅇ㸱ࡘࡢࢣ࣮ࢫ࡛㛵ಀࡢホ౯ࢆ⾜ࡗࡓࡀࠊ⌧௦ࡢࢿࢵࢺ࣮࣡ࢡࡢ≉ᚩ࡜ࡋ࡚ࠊࣁࣈ
໬ࡉࢀ࡚࠸࡚ Fu(⚟ᒸ)࠿ࡽࡍ࡭࡚ࡢ㒔ᕷ࡟ᑐࡋ࡚ᙉ࠸࣮ࣝࢺࡀᙧᡂࡉࢀ࡚࠸ࡿࠋࡉࡽ
࡟ࡑࡢ௚ࡢ㸰㒔ᕷ㛫࡟㛵ࡋ࡚ࡶ㎽ᅇ㊰ࡀከ࠸ࡇ࡜ࡀࢃ࠿ࡗࡓࠋࡇࡢࡓࡵࣛࣥࢲ࣒࡟࠶ࡿ

12࣮ࣝࢺࢆ㝖ࡃࡔࡅ࡛ࡣឤᰁࢆṆࡵࡿࡇ࡜ࡀ㞴ࡋ࠸ᵓ㐀࡟࡞ࡗ࡚࠸ࡿࡇ࡜ࡀゎࡿࠋ㛵ಀࡢ῝࠸㡰఩࡟࠶ࡿࡶࡢࡢᩘ್ࢆඃඛⓗ࡟ୗࡆࡿࡼ࠺࡟࣮ࣝࢺࢆไ㝈ࡋ࡚࠸ࡃࡇ࡜ࡀ᭷ຠ
࡛࠶ࡿ࡜⪃࠼ࡽࢀࠊ௒ᅇࡢ◊✲ࢆᨻ⟇࡟᭷ຠ࡟฼⏝࡛ࡁࡿࡔࢁ࠺ࠋ
࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ཎⴭㄽᩥ㸼1)▼㯮຾ᕫ 㛗⦖┤ᓫ す⸨Ύ⚽ ࠕྂ௦♫఍ࢥ࣑ࣗࢽࢣ࣮ࢩࣙࣥࡢฟᅵᅵჾ㔞ࢆࡶ࡜࡟ࡋࡓホ౯ࠖࠗ᪥ᮏᩥ໬㈈⛉Ꮫ఍◊✲ᡂᯝᴫせ㞟 36 ࠘June 20192),VKLJXURNDWVXPL6DLWR.L\RKLGHࠕ6WXG\RIFXOWXUDOSURSHUWLHVE\WKHWHFKQLTXHRIFRVPLF
UD\SK\VLFVࠖࠗ,F0DVVDEVWUDFWV ࠘2FW ▼㯮຾ᕫ す⸨Ύ⚽ ࠕ᪥ᮏࡢྂቡࡢ࣑࣮ࣗ࢜ࣥࣛࢪ࢜ࢢࣛࣇ࢕࣮࡟ࡼࡿ⪃ྂᏛⓗ◊✲ࠖࠗ,VRWRSH
1HZV ࠘2FW
㸺ᅜ㝿࣭ᅜෆ఍㆟㸼 ▼㯮຾ᕫ 㛗⦖┤ᓫす⸨Ύ⚽ ࠕྂ௦♫఍ࢥ࣑ࣗࢽࢣ࣮ࢩࣙࣥࡢฟᅵᅵჾ㔞ࢆࡶ࡜࡟ࡋࡓホ౯ࠖ ᪥ᮏᩥ໬㈈⛉Ꮫ఍  ᖺ኱఍  ᖺ  ᭶
ᅗ 1:ྂ௦஑ᕞ㞟ⴠ㑇㊧ࡢࢿࢵࢺ࣮࣡ࢡ࡜㛵ಀ್  ᅗ 2:ྂ௦ࠊᮾᾏ㏆㎶ࡢ㞟ⴠ㑇㊧ᅗ 3:⌧௦ࡢ஑ᕞᆅ᪉ࡢឤᰁ⑕ࢿࢵࢺ࣮࣡ࢡ



13

 

ู⣬ᵝᘧ㸰㸫㸰㉸㧗㏿㣕㊧ㄆ㆑⿦⨨ +76 ࡟ࡼࡿῶឤཎᏊ᰾஝ᯈ୰ࡢ
Ᏹᐂ⥺ཎᏊ᰾ྠᐃἲࡢ◊✲
6WXG\RILGHQWLI\LQJFRVPLFUD\QXFOHLLQGHVHQVLWL]HGQXFOHDUHPXOVLRQILOPVE\XVLQJ+\SHU7UDFN6HOHFWRU +76 ఀ௦㔝῟࣭ᒸᒣ⌮⛉኱Ꮫ࣭⌮Ꮫ㒊࣭ᩍᤵ    ᒣᮏ⣪▮࣭ᒸᒣ⌮⛉኱Ꮫ࣭኱Ꮫ㝔⌮Ꮫ◊✲⛉࣭≉ู◊✲⏕     ዟᒣⴌ⏕࣭ᒸᒣ⌮⛉኱Ꮫ࣭኱Ꮫ㝔⌮Ꮫ◊✲⛉࣭ಟኈㄢ⛬㸯ᖺ୰ᮧගᘅ࣭㧗ᗘィ ᢏ⾡ࢭࣥࢱ࣮࣭⣲⢏Ꮚィ 㒊࣭ᩍᤵబ⸨ ಟ࣭㧗ᗘィ ᢏ⾡ࢭࣥࢱ࣮࣭⣲⢏Ꮚィ 㒊࣭ຓᩍ     ᳃ᓥ㑥༤࣭㧗ᗘィ ᢏ⾡ࢭࣥࢱ࣮࣭⣲⢏Ꮚィ 㒊࣭≉௵ຓᩍ㸯㸬◊✲┠ⓗ ཎᏊ᰾஝ᯈ࡟ࡼࡿᏱᐂ࣐࢞ࣥ⥺ィ⏬
㸦*5$,1( Ẽ⌫ᐇ㦂㸧࡟ࡼࡿ኱㠃✚Ᏹᐂ⥺ཎᏊ᰾໬Ꮫ⤌ᡂほ࡟ࡼࡗ࡚ࠊ㉸᪂ᫍ⇿Ⓨࡸ୰ᛶᏊᫍ㐃ᫍྜయ࡞࡝ࡢᏱᐂ࡟࠾ࡅࡿ㔜ඖ⣲㉳※ࢆࣔࢹࣝࡢ☜ᐃࢆ┠ᣦࡍࠋ ᖺࡢ *5$,1(Ẽ⌫ᐇ㦂࡛ࣃ࢖ࣟࢵࢺ◊✲࡜ࡋ࡚ῶឤࡋࡓཎ
Ꮚ᰾஝ᯈ࡛ᵓᡂࡉࢀࡓᑠつᶍࡢ㔜⢏Ꮚほࢳ࢙ࣥࣂ࣮ࢆᦚ㍕ࡋࠊཎᏊ᰾⤌ᡂࡢほ⏝ࢆ⾜ࡗࡓࠋࡲࡓࠊ୪⾜ࡋ࡚ᨺᑕ⥺་Ꮫ⥲ྜ◊✲ᡤࡢຍ㏿ჾ +,0$& ࡟ࡼࡿ㔜࢖࢜ࣥࣅ࣮࣒ᐇ㦂࡟ࡼࡾࠊῶឤࡋࡓཎᏊ᰾஝ᯈࡢ㉸㧗㏿㣕㊧ㄆ㆑⿦⨨㸦+76㸧࡟ࡼࡿຠ⋡ⓗゎᯒᡭἲࡢ㛤Ⓨࢆ⾜࠸ࠊ ᖺ࠿ࡽࡢ኱㠃✚࡛ࡢ *5$,1( Ẽ⌫ᐇ㦂ࡢゎᯒࢆᐇ⌧ࡍࡿࡇ࡜࡛࠶ࡿࠋᅗ㸯 ࢦࣥࢻࣛෆ࡟タ⨨ࡉࢀࡓῶឤཎ
Ꮚ᰾஝ᯈ࠿ࡽᵓᡂࡉࢀࡿᏱᐂ⥺ཎᏊ᰾ほ㸰㸬◊✲ෆᐜ࡜ᡂᯝ

⏝ࢳ࢙ࣥࣂ࣮  ᖺᗘࡣࠊྡྂᒇ኱Ꮫ⌮Ꮫ㒊࡟࠾ࡅࡿ +76 ࡟ࡼࡿ +,0$& ࣅ࣮࣒↷ᑕ஝ᯈゎᯒࠊ
+,0$& ࣅ࣮࣒↷ᑕᐇ㦂ࡀ࡛ࡁ࡞࠸≧ἣ࡛࠶ࡗࡓⅭࠊ*5$,1( ᖺẼ⌫ᐇ㦂 ᅗ㸯 ࡢ ✀㢮ࡢῶឤཎᏊ᰾஝ᯈࡢゎᯒࢆ᭦࡟㐍ࡵࡿࡇ࡜࡜ࡋࡓࠋ
㏻ᖖࡢཎᏊ᰾ங๣࡟ࣟࢪ࣒࢘໬ྜ≀ࢆῧຍࡍࡿࡇ࡜࡛ࠊⲴ㟁⢏Ꮚࡢ㟁㞳ᦆኻ࡟ᑐࡍࡿ
ឤᗘࢆపῶࡍࡿᡭἲ࡛ࠊ ✀㢮ࡢࣟࢪ࣒࢘ῧຍ㔞ࡀ␗࡞ࡿࢱ࢖ࣉ࡟ࡘ࠸࡚ࠊ㣕㊧᥋⥆ࢆ⾜࠺ࡇ࡜࡛ࠊ㟁㞳㔞┦ᙜࢩࢢࢼ࡛ࣝ࠶ࡿ 3+9㸦㣕㊧ࡢ㯮໬ᗘ㸧ࡢኚ໬ࢆㄪ࡭ࡓࠋࡇࡇ
࡛ࡣࠊࣟࢪ࣒࢘໬ྜ≀ࡢῧຍ㔞ࡢከ࠸ 5K+㸦㣕㊧㯮໬ᗘࡀపࡃᢚ࠼ࡽࢀࡿ㸧࡜ῧຍ㔞ࡢ
ᑡ࡞࠸ 5K6 㣕㊧㯮໬ᗘࡣⱝᖸᢚ࠼ࡽ࠼ࢀࡿ ࡢ  ᯛࡢ஝ᯈ࡟ࡘ࠸࡚ࠊ㣕㊧᥋⥆ࢆ⾜࡞ࡗ

14ࡓࠋ+76 ࡣࠊ᭱ᑠ㟁㞳㣕㊧୪ࡧ࡟ࡑࡢ  ಸ⛬ᗘࡢ㟁㞳㔞ࡢⲴ㟁㣕㊧ࡢゎᯒ࡟᭱㐺໬ࡉࢀࡓ㉸㧗㏿㣕㊧ㄆ㆑⿦⨨࡛࠶ࡾࠊ㣕㊧㯮໬ᗘࡢ኱ࡁ࠸ཎᏊ᰾ᡂศࡢ

ᐃࡀ࡛ࡁ࡞࠸ᵓ㐀࡜࡞ࡗ࡚࠸ࡿࠋᡃࠎࡣࠊ+76 ࡛ࡢ㧗㏿࡞ཎᏊ᰾ᡂศࡢ᳨ฟࢆ┠ᣦࡋ࡚ࠊཎᏊ᰾஝ᯈࡢឤ
ᗘࢆࣟࢪ࣒࢘໬ྜ≀ࡢῧຍ㔞࡛ࢥࣥࢺ࣮ࣟࣝࡍࡿࡇ࡜࡟ᡂຌࡋࡓࡢ࡛ࠊࡑࡢ⤖ᯝࢆ㣕㊧᥋⥆࡟ᛂ⏝ࡋࡓࠋ

ᅗ㸰 RhS ཎᏊ᰾஝ᯈ 2 ᯛ(ᶓ㍈)࡜ RhH ཎᏊ᰾஝ᯈ 3 ᯛ㸦⦪㍈㸧࡟࠾࠸࡚㣕㊧᥋⥆ࡀ࡛ࡁࡓࢺࣛࢵࢡࡢ PHV(㣕㊧㯮໬ᗘ)ศᩓᅗ୪ࡧ࡟ࠊPHV ศᕸࠋ(ᕥࣃࢿࣝ㸸ኳ㡬ゅ tanȟ<0.25ࠊྑࣃࢿࣝ㸸ኳ㡬ゅ tanȟ=0.25 ࠿ࡽ 0.5)5K+ ᯛ࡜ 5K6 ᯛィ  ᯛࢆ᥋⥆ࡋࡓ㣕㊧ ኳ㡬ゅ WDQȟ㸺 ࡜ WDQȟ㸻 ࠿ࡽ 
ࡢ 3+9 ศᩓᅗ࡜ 3+9 ศᕸࢆᅗ㸰࡟♧ࡋࡓࠋࣟࢪ࣒࢘ῧຍ㔞ࡢᑡ࡞࠸ 5K6 ࡜ከ࠸ 5K+
ࡢ 3+9 ࡣ┦㛵ࡋ࡚࠸ࡿࡼ࠺࡟ぢ࠼࡚࠸ࡿࡀࠊࡑࢀࡒࢀࡢศᕸࢆẚ㍑ࡍࡿ࡜ࠊ5K6 ࡢศᕸࡀ୍ࡘ࡟࡞ࡗ࡚࠸ࡿࡢ࡟ᑐࡋ࡚ࠊ5K+ ࡢࣄࢫࢺࢢ࣒ࣛࡣ」ᩘ࡟ศ㞳ࡉࢀ࡚࠸ࡿࡇ࡜ࡀ
ࢃ࠿ࡿࠋࡇࡢ 5K+ ศᕸࡣࠊ+,0$& ᐇ㦂࡟࠾ࡅࡿ 3+9 ࡜㟁㞳ᦆኻ㔞࡜ࡢ㛵ಀ࠿ࡽࠊ᫂
ࡽ࠿࡟Ᏹᐂ⥺ &12 ⤌ᡂࡀศ㞳࡛ࡁ࡚࠸ࡿࡇ࡜ࢆ♧ࡋ࡚࠸ࡿࠋࡲࡓࠊࡇࢀࡽࡢ⤖ᯝࡣࠊᏱᐂ⥺ཎᏊ᰾ࡢኳ㡬ゅ⠊ᅖࢆኚ࠼ࡓሙྜࡶྠ୍࡛࠶ࡾࠊᏱᐂ⥺ཎᏊ᰾ࡢ໬Ꮫ⤌ᡂࢆᤕࡽ࠼࡚࠸ࡿࡇ࡜ࡀࢃ࠿ࡿࠋ&12 ⤌ᡂࡑࢀࡒࢀࡢྠᐃ࡟ࡲ࡛ࡣ⮳ࡗ࡚࠸࡞࠸ࡀࠊࡇࢀ࡞ࡢ
⤖ᯝ࡟ࡘ࠸࡚  ᖺࡢᏱᐂ⥺ᅜ㝿఍㆟࡛ࡢⓎ⾲ࢆィ⏬ࡋ࡚࠸ࡿࠋ

࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ཎⴭㄽᩥ㸼 ࡞ࡋ㸺ᅜ㝿࣭ᅜෆ఍㆟㸼࡞ࡋ㸺⏘ᴗ㈈⏘ᶒ㸼࣭࡞ࡋ

15ู⣬ᵝᘧ㸰㸫㸰ཎᏊ᰾஝ᯈࢆ⏝࠸ࡓ⢏Ꮚ᳨ฟჾ࡟࠾ࡅࡿ㐠ື㔞ᐃᢏ⾡ࡢ㧗ᗘ໬

Upgrading of momentum measurement techniques in emulsion-based particle detectors୰ ❳኱࣭ᮾ㑥኱Ꮫ࣭⌮Ꮫ㒊࣭ㅮᖌᑠᕝ ஢࣭ᮾ㑥኱Ꮫ࣭⌮Ꮫ㒊࣭ᩍᤵ㭯ᒸ༓✑࣭ᮾ㑥኱Ꮫ኱Ꮫ㝔࣭⌮Ꮫ◊✲⛉࣭0௚  ྡ
୕ゅᑦ἞࣭᪥ᮏ኱Ꮫ࣭⏕⏘ᕤᏛ㒊࣭෸ᩍᤵ
ఀ⸨ៅኴ㑻࣭᪥ᮏ኱Ꮫ࣭⏕⏘ᕤᏛ㒊࣭%
୰ᮧගᘅ࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ࣭ᩍᤵబ⸨ ಟ࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ࣭ຓᩍ㸯㸬◊✲┠ⓗ ௒᪥ࠊཎᏊ᰾஝ᯈࢆ⏝࠸ࡓᨺᑕ⥺⢏Ꮚ᳨ฟჾࡣࠊࡑࡢඃࢀࡓ✵㛫ศゎ⬟࡟ࡼࡾࢽ࣮ࣗ

ࢺࣜࣀ≀⌮ࢆ┠ⓗ࡜ࡋࡓ⣲⢏Ꮚᐇ㦂࡞࡝⣧⢋⌮Ꮫࡢ◊✲࡟ጾຊࢆⓎ᥹ࡍࡿ࡜࡜ࡶ࡟ࠊࢥ
ࣥࣃࢡࢺ࠿ࡘ㟁※୙せ࡞࡝ࡢ≉㛗ࢆేࡏᣢࡘࡓࡵࠊᏱᐂ⥺࣑࣮ࣗ⢏Ꮚ࡛኱ᆺᵓ㐀≀ෆ㒊
ࢆ㏱どࡍࡿ࣑࣮ࣗ࢜ࣥࣛࢪ࢜ࢢࣛࣇ࢕࣮࡟ᛂ⏝ࡉࢀࡿ࡞࡝ά⏝ࡢሙࢆᗈࡆ࡚࠸ࡿࠋࡑࡢ୰࡛㐠ື㔞ᐃᢏ⾡ࡢ㧗ᗘ໬ࠊ

ᐃ⢭ᗘࡢྥୖࡣႚ⥭ࡢㄢ㢟࡛࠶ࡿࠋᡃࠎࡣ௨๓࠿ࡽ

ᵝࠎ࡞ᐇ㦂࡟࠾࠸࡚Ⲵ㟁⢏Ꮚࡢ㐠ື㔞 ᐃࢆᢸᙜࡋ࡚ࡁࡓࡀࠊᮏඹྠ฼⏝࣭ඹྠ◊✲࡛ࡉࡽ࡟㧗ᗘ໬ࢆᅗࡿࠋ
㸰㸬◊✲ෆᐜ࡜ᡂᯝ ࢥࣥࣃࢡࢺ࣭࢚࣐ࣝࢩ࣭ࣙࣥࢫ࣌ࢡࢺ࣓࣮ࣟࢱ࣮(CES)ࡢ◊✲࡛ࡣࠊḢᕞཎᏊ᰾◊✲ᶵ㛵 CERN ࡛ࡢࣅ࣮࣒↷ᑕᐇ㦂࡟ࡼࡾࠊ௨๓ࡢཎ⌮᳨ドᐇ㦂࡜ẚ࡭ࠊᗈ࠸㠃✚ࠊᗈ࠸
ゅᗘ⠊ᅖ࡛౑⏝ྍ⬟࡛࠶ࡿࡇ࡜ࡀ♧ࡉࢀࡓࠋࡲࡓࠊ࣮࣋ࢫ⣲ᮦ࡜ࡋ࡚ࡣ࣏ࣜࢫࢳࣞࣥࣇ
࢕࣒ࣝࠊ࢔ࢡࣜࣝᯈ࡜ẚ࡭ࠊ࢞ࣛࢫᯈࢆ⏝࠸ࡓཎᏊ᰾஝ᯈࡀࡼࡾᖹ㠃ᛶ࡟ඃࢀࠊCES⏝஝ᯈࡢ࣮࣋ࢫ⣲ᮦ࡜ࡋ࡚᭱㐺࡛࠶ࡿࡇ࡜ࡀࢃ࠿ࡗ࡚࠸ࡿࠋࡉࡽ࡟ࠊCES ᵓ㐀࡜ࡋ࡚ࡣࠊ
ࣟࣁࢭࣝᯈࢆపᐦᗘࢫ࣮࣌ࢧ࣮࡜ࡋ࡚⏝࠸ࠊࣂࢿ࡛ᢲࡉ࠼ࡿᵓ㐀ࡢࢫࢱࢵࢡࡣࣟࣁࢭࣝ
ᯈࡢཌࡳࡀᆒ୍࡛ࡣ࡞ࡃࠊࡲࡓࣂࢿ࡟ࡼࡿᅽຊࡶ࠶ࡾࠊሙᡤ࡟ࡼࡗ࡚ᑠࡉ࡞ṍࡳࢆ⏕ࡌࡿࡇ࡜ࡀࢃ࠿ࡗ࡚࠸ࡿࠋ2019 ᖺᗘࡣࠊ௨ୖࢆ㋃ࡲ࠼ࠊ஝ᯈࡢࡓࢃࡳ㍍ῶ࡜ᐇ㦂᫬ࡢᢅ࠸ࡸࡍࡉྥୖࢆ┠ᣦࡋ࡚ࠊ࢞ࣛࢫ࣮࣋ࢫᯈࡢཌࡉࢆ᫖ᖺᗘࡢ 200ȣm ࠿ࡽ 500ȣm ࡟ኚ᭦ࡋࡓࠋࡉࡽ࡟ࠊࡼࡾᖹ⾜ᗘࢆቑࡋࡓ᪂ࡋ࠸✵Ẽࢠࣕࢵࣉ᪉ᘧࡢ CES ᵓ㐀యࢆ〇సࡋࡓࠋࡑࡋ࡚ࡑࡢຠᯝࢆホ౯ࡍࡿࡓࡵࠊ☢ሙ࡞ࡋࡢ≧ែ࡛ࡢᏱᐂ⥺↷ᑕᐇ㦂ࢆᐇ᪋ࡋࡓࠋ
ᮏ◊✲࡛ࡣࠊࢧࢪࢵࢱࡢᖜ㸦ศゎ⬟㸧ࡢ⌮ゎ࡜᭱㐺໬ࠊ㧗⤫ィ໬ࠊࡉࡽ࡟ࠊ෌⌧ᛶࡢ☜ㄆࡢࡓࡵ࡟ 2019 ᖺᗘ࡜ྠᵝࡢᐇ㦂ࢭࢵࢺ࢔ࢵࣉ㸦ᅗ㸯㸧࡛Ᏹᐂ⥺↷ᑕᐇ㦂ࢆ⾜ࡗࡓࠋ௒ᅇࡣࠊᅗ 1 ࡟࠶ࡿࡼ࠺࡟ࠊ஝ᯈෆࡢ㣕㊧ࡢ఩⨨ ᐃ⢭ᗘࢆᚓࡿࡓࡵ࡟ࠊ᭱ୗ㒊࡟ 2 㔜ᒙ㸦ࢲࣈࣞࢵࢺ㸧ࢆタ⨨ࡋ࡚࠸ࡿࠋᮏ◊✲࡛ࡣࠊゎᯒ᪉ἲࡢぢ┤ࡋࢆ⾜࠸ࠊ஝ᯈୖ࡛ゅᗘࢆᣢࡗࡓ㣕㊧࡟ᑐࡋࠊ㣕㊧ࢆྵࡴ㠃࡜஝ᯈ㠃ࡢ஺⥺᪉ྥ㸦L ㍈㸧࡜ࠊ஝ᯈ㠃ୖ࡛ L ㍈

16࡟┤஺ࡍࡿ᪉ྥ㸦T ㍈㸧࡟ᗙᶆ⣔ࢆ⛣ࡋࠊᚑ᮶ࠊ᳨ฟჾࡢᗙᶆ⣔࡛⾜ࢃࢀ࡚࠸ࡓゎᯒࢆLT ㍈ୖ࡛⾜ࡗࡓࠋࡑࢀ࡟ࡼࡾࠊࢲࣈࣞࢵࢺࡢゎᯒ࡛ࡣࠊ஝ᯈ඲㠃࡟ࢃࡓࡾ㹼0.7ȣm ࡢ఩⨨ศゎ⬟࡜ 1.4mrad ࡢ࡯ࡰධᑕゅ࡟౫ࡽ࡞࠸ศゎ⬟ࡀᚓࡽࢀࡓࠋCES 㒊ศࡢゎᯒ࡛ࡣࠊᚑ᮶ 2 ᒙ㛫࡟࠾ࡅࡿ∦᪉࠿ࡽࡢᘏ㛗ࡋࡓணᗙᶆ࡜ᐃᗙᶆ࡜ࡢࡎࢀࢆࠊ஝ᯈࡢᣑ኱⦰

ᑠ㸦ࢫࢣ࣮ࣜࣥࢢ㸧࡜஝ᯈ㛫㝸㸦z ࢩࣇࢺ㸧ࢆㄪᩚࡍࡿࡇ࡜࡟ࡼࡾ᭱ᑠ໬ࡋ࡚ࡁࡓ࡜ࡇ
ࢁࢆࠊࢫࢣ࣮ࣜࣥࢢ࡜ z ࢩࣇࢺࡢึᮇ್ࢆࡑࢀࡒࢀタィ್ࡢ㸯࡜ 15,000ȣm ࡜ࡋ࡚ᚤㄪ
ᩚࢆ⾜࠺ࡼ࠺࡟ࡋࡓࠋᮏᐇ㦂࡛ࡣࠊᏱᐂ⥺ࡢ㐠ື㔞ࢆୗ㒊ࡢ ECC㸦ᅗ㸯㸧࡛ከ㔜㟁☢
ᩓ஘ࢆ⏝࠸࡚ ᐃࡋ࡚࠸ࡿࡀࠊ≉࡟ࠊ㧗㐠ື㔞࡛ࡣࠊప࠸㐠ື㔞ࡢ㣕㊧ࡢΰධࡀࢧࢪࢵ
ࢱࡢᖜࢆቑຍࡉࡏࡿཎᅉ࡜࡞ࡿࠋᮏ◊✲࡛ࡣࠊࡇࡢຠᯝࢆࣔࣥࢸ࢝ࣝࣟࢩ࣑࣮ࣗࣞࢩࣙ
ࣥ࡟⤌ࡳ㎸ࡴࡇ࡜࡟ࡼࡾࠊࢹ࣮ࢱ࠿ࡽᚓࡽࢀࡓࢧࢪࢵࢱࡢᖜ࡜ẚ㍑ࡋࡓࠋ௨ୖࡢゎᯒ࡟ࡶ࡜࡙ࡁࠊ2019 ᖺࡢ↷ᑕࢹ࣮ࢱ࡜ 2020 ᖺࡢ↷ᑕࢹ࣮ࢱ࡟ᑐࡋ࡚ࢧࢪࢵࢱࢆ 1~6GeV/cࡢ㐠ື㔞㡿ᇦ࡛ホ౯ࡋࠊࣔࣥࢸ࢝ࣝࣟࢩ࣑࣮ࣗࣞࢩࣙࣥ࡜ẚ㍑ࡋࡓ㸦ᅗ 2㸧ࠋ௒ᖺᗘ࡟
ぢ┤ࡋࡓゎᯒᡭἲ࡟ࡼࡾࠊࣔࣥࢸ࢝ࣝࣟࢩ࣑࣮ࣗࣞࢩ࡛ࣙࣥᚓࡽࢀࡿࢧࢪࢵࢱࡢศゎ⬟࡜↷ᑕࢹ࣮ࢱࡣⰋ࠸୍⮴ࢆ♧ࡋ࡚࠸ࡿࠋ㧗㐠ື㔞ഃ࡟ࡣࠊࡲࡔࠊࢧࢪࢵࢱࡢᖜࢆቑຍࡉࡏࡿせᅉࡀṧࡗ࡚࠸ࡿ࡜⪃࠼ࡽࢀࡿࡀࠊᚓࡽࢀࡓศゎ⬟ࡣࠊ༑ศᐇ⏝໬࡛ࡁࡿ⠊ᅖ࡟཰ࡲࡗ࡚࠸ࡿࠋࢧࢪࢵࢱࡢᖜࢆỴࡵࡿᅉᏊࡣ࡯ࡰ⌮ゎ࡛ࡁ࡚࠸ࡿ࡜⪃࠼ࡽࢀࠊᛶ⬟ࡢ෌⌧ᛶࡶ☜ㄆ࡛ࡁࡓࠋ

ᅗ㸰㸸ࢧࢪࢵࢱࡢᖜ vs. 㐠ື㔞.

ᅗ㸯㸸Ᏹᐂ⥺↷ᑕᐇ㦂.

࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ᅜ㝿࣭ᅜෆ఍㆟㸼࣭኱ᓥோ ௚, NINJA ᐇ㦂࡟࠾ࡅࡿ 1GeV 㡿ᇦࡢࢽ࣮ࣗࢺࣜࣀ-㕲Ⲵ㟁࢝ࣞࣥࢺ཯ᛂࡢ඲᩿
㠃✚ࡢ ᐃ,᪥ᮏ≀⌮Ꮫ఍ 2020 ᖺ⛅Ꮨ኱఍, ࢜ࣥࣛ࢖ࣥ, 2020 ᖺ 9 ᭶ 14 ᪥㹼9 ᭶ 17 ᪥.
࣭㭯ᒸ༓✑ ௚, SHiP ᐇ㦂࡟ྥࡅࡓࢥࣥࣃࢡࢺ࢚࣐ࣝࢩࣙࣥࢫ࣌ࢡࢺ࣓࣮ࣟࢱ࣮ࡢ㛤Ⓨ,᪥ᮏ≀⌮Ꮫ఍ 2020 ᖺ⛅Ꮨ኱఍, ࢜ࣥࣛ࢖ࣥ, 2020 ᖺ 9 ᭶ 14 ᪥㹼9 ᭶ 17 ᪥.
࣭኱ᓥோ ௚, NINJA ᐇ㦂࡟࠾ࡅࡿ 1GeV 㡿ᇦࡢࢽ࣮ࣗࢺࣜࣀ-㕲Ⲵ㟁࢝ࣞࣥࢺ཯ᛂࡢ᩿㠃✚ᐃ, ᪥ᮏ≀⌮Ꮫ఍ ➨ 76 ᅇᖺḟ኱఍, ࢜ࣥࣛ࢖ࣥ, 2021 ᖺ 3 ᭶ 12 ᪥㹼3 ᭶ 15 ᪥.

17ู⣬ᵝᘧ㸰㸫㸰࣍࢘⣲㝧Ꮚᤕᤊ⒪ἲࡢస⏝ᶵᗎゎ᫂ࡢࡓࡵࡢ᪂ᆺཎᏊ᰾஝ᯈࡢ㛤Ⓨ
Development of new type of nuclear emulsion for PBCTᮌᮧ඘ᏹ ྡྂᒇᕷ⑓㝔ᒁす㒊་⒪ࢭࣥࢱ࣮
ྡྂᒇ㝧Ꮚ⥺἞⒪ࢭࣥࢱ࣮㝧Ꮚ⥺἞⒪≀⌮⛉ᢏᖌ㸦་Ꮫ≀⌮㸧㛗⦖┤ᓫ ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱࢩࢫࢸ࣒◊✲ᡤ⣲⢏Ꮚィ 㒊 ◊✲ဨ୰ᮧගᘅ ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱࢩࢫࢸ࣒◊✲ᡤ⣲⢏Ꮚィ 㒊 ᩍᤵబ⸨ಟ  ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱࢩࢫࢸ࣒◊✲ᡤ⣲⢏Ꮚィ 㒊 ຓᩍ㸯㸬◊✲┠ⓗ 㝧 Ꮚ ⥺ࡀ ࢇ ἞⒪ ࡢ ⥺㔞 㞟 ୰ ᛶࢆ ྥ ୖࡍ ࡿ ࣍࢘ ⣲ 㝧 Ꮚᤕ ᤊ ⒪ἲ 㸦 Proton Boron
Capture Therapy; PBCT㸧ࡢస⏝ᶵᗎࢆゎ᫂ࡍࡿࡓࡵ㸪࣍࢘⣲ࢆΰࡐࡓཎᏊ᰾஝ᯈࢆ
㛤Ⓨࡍࡿࡇ࡜ࢆ┠ⓗ࡜ࡍࡿ㸬௒ᖺᗘࡣ࣍࢘⣲ࢆྵ᭷ࡋࡓཎᏊ᰾஝ᯈࡢ〇స࡜ࡑࡢᛶ⬟ホ౯ࢆ⾜ࡗࡓ㸬

㸰㸬◊✲ෆᐜ࡜ᡂᯝ
(1) ࣍࢘⣲ࢆྵࡴཎᏊ᰾஝ᯈࡢ㛤Ⓨ
PBCT ࡢస⏝ᶵᗎ࡜ண᝿ࡉࢀࡿ 11B(p, D)2D཯ᛂࢆ᳨ฟࡍࡿࡓࡵ㸪ᶆⓗ࡜࡞ࡿ࣍࢘⣲ࢆྵࢇࡔཎᏊ᰾஝ᯈࡢ㛤Ⓨࢆ⾜ࡗࡓ㸬࣍࢘⣲ࡢᑟධ࡟ࡣ஬࣍࢘㓟ሷ㸦ᐩᒣ⸆ရᕤᴗ㸪ᮾி㸧ࢆ⏝࠸ࡓ㸬┤ᚄ 40 nm ࡢࣁࣟࢤࣥ໬㖟⤖ᬗ࠿ࡽ࡞ࡿ㉸ᚤ⢏ᏊᆺཎᏊ᰾ங๣࡟⃰ᗘ 1, 2, 3,
4, 5, 8 x 10-1 mol/L ࡢ஬࣍࢘㓟ሷỈ⁐ᾮࢆΰࡐ࡚ࢫࣛ࢖ࢻ࢞ࣛࢫ࡟ሬᕸࡋ㸪ᖖ↓㢼ୗ࡛㸯㐌㛫஝⇱ࡉࡏࡓங๣ࡢ≧ែࢆほᐹࡋࡓ㸬஝⇱ᚋࡢங๣ᒙཌ 20 Pm ࡢ࡜ࡁ㸪ࡍ࡭࡚ࡢ⃰ᗘࡢỈ⁐ᾮࢆῧຍࡋࡓங๣࡟␗≧ࢆㄆࡵ࡞࠿ࡗࡓ㸬୍᪉㸪ங๣ᒙཌ 60 Pm ࡢ࡜ࡁ㸪⃰ᗘ
8 x 10-1 mol/L ࡢỈ⁐ᾮࢆΰࡐࡓங๣⾲㠃ୖ࡟㔪≧⤖ᬗࡢᯒฟࢆㄆࡵࡓ㸬ࡇࢀࡣሷࡢ⛣ື࡟ࡼࡾ࣍࢘㓟ሷࡀ⾲㠃࡟ᯒฟࡋࡓࡇ࡜ࢆ♧ࡍ㸬ཌࡉ 20 Pm ࡢங๣ᒙ࡛ࡣሷࡢᯒฟࡀㄆࡵ
࡞࠸ࡇ࡜࠿ࡽ㸪ࡇࡢヨᩱ࡛ࡣሷࡀ⾲㠃࡟⛣ືࡍࡿ๓࡟ங๣ᒙࡢ஝⇱ࡀ⤊஢ࡋࡓ࡜᥎ ࡉࢀࡿ㸬ࡇࡢࡇ࡜࠿ࡽ஬࣍࢘㓟ሷỈ⁐ᾮࡢῧຍチᐜ㔞ࡣ㸪ங๣ࡢ஝⇱㏿ᗘ࡜ሷࡢ⛣ື㏿ᗘ࡟౫Ꮡࡍࡿࡇ࡜ࡀศ࠿ࡗࡓ㸬(2) D⢏Ꮚࡢ᳨ฟ
࣍࢘⣲ࢆῧຍࡋࡓங๣࡟D⥺ࢆ↷ᑕࡋ࡚㸪㣕㊧ࢆ㢧ᚤ㙾ୗ࡛ほᐹࡋࡓ㸬⃰ᗘ 1 x 10-1 mol/L ࡢ஬࣍࢘㓟ሷỈ⁐ᾮࢆῧຍࡋࡓங๣ࢆࢫࣛ࢖ࢻ࢞ࣛࢫୖ࡟ཌ
ࡉ 20 Pm ࡛ሬᕸࡋ㸪஝⇱ᚋࡢங๣࡟ 241Am ࡢ 5.4
MeV D⥺ࢆ↷ᑕࡋࡓ㸬↷ᑕࡋࡓ஝ᯈࡣ⌧ീᾮ XAAࢆ⏝࠸࡚ 20 ฻C㸪5 min ࡢ⌧ീࢆ⾜ࡗࡓ㸬ᅗ 1 ࡟㢧ᚤ

18

ᅗ 1. 241Am Dࡢ㢧ᚤ㙾෗┿㙾ୗ࡛᧜ᙳࡋࡓD⥺ࡢ㣕㊧ࢆ♧ࡍ㸬D⥺࡟ᑐᛂࡍࡿ black track ࡀㄆࡵࡽࢀࡿ୍᪉㸪㏻ᖖ
ࡼࡾࡶ㖟⢏Ꮚ㛫㝸ࡀ㛤࠸ࡓ㣕㊧ࡶぢࡽࢀࡓ㸬ࡇࡢཎᅉࡣ⌧ᅾㄪᰝ୰࡛࠶ࡿ㸬(3) 10B(n, D)7Li ཯ᛂࢆ౑ࡗࡓ࣍࢘⣲ሷࡢ῝ࡉ᪉ྥࡢศᩓᛶࡢホ౯⃰ᗘ 1 x 10-1 mol/L ࡢ஬࣍࢘㓟ሷࢆῧຍࡋ
ࡓ㉸ᚤ⢏Ꮚங๣ࢆཌࡉ 60 Pm ࡛ࢫࣛ࢖ࢻ
࢞ࣛࢫୖ࡟ሬᕸࡋࡓ㸬ࡇࡢ஝ᯈ࡟ᑐࡋ㸪ி㒔኱Ꮫ」ྜཎᏊຊ⛉Ꮫ◊✲ᡤࡢཎᏊ⅔
࡛ᖹᆒ 20 meV ࡢ࢚ࢿࣝࢠ࣮ࢆᣢࡘ⇕୰
ᛶᏊࢆ 5 x 108 cm-2 ࡢᐦᗘ࡛↷ᑕࡋࡓ㸬ࡑࡢᚋ㸪↷ᑕࡋࡓ஝ᯈࢆ⌧ീᾮ XAA ࡛
20 ฻C㸪25 min ࡢ⌧ീࢆ⾜࠸㸪ⴠᑕ↷᫂㢧ᚤ㙾ࢆ⏝࠸࡚୰ᛶᏊ཯ᛂࢆ᥈⣴ࡋࡓ㸬
B(n, D)7Li ཯ᛂ࡟ࡼࡾ 1.5 MeV ࡢD⢏Ꮚ࡜

10

0.84 MeV ࡢ 7Li ࡀ back-to-back ࡛ᨺฟࡉࢀࡿ㸬ᅗ 2. 10B(n, D)7Li ཯ᛂࡢங๣ᒙ୰ࡢ஦㇟ࡢ῝ࡉศᕸSRIM (Stopping and Range of Ions in Matter)ࢆ
⏝࠸ࡓࢩ࣑࣮ࣗࣞࢩࣙࣥ࡟ࡼࢀࡤ㸪D⢏Ꮚࡣங๣୰࡛ 5.1 Pm㸪7Li ࡀ 2.6 Pm ࡢ㣕⛬ࢆࡶࡘ㸬஬࣍࢘㓟ሷࡢῧຍ㔞࡜୰ᛶᏊ཯ᛂ᩿㠃✚࠿ࡽ᥎ᐃࡉࢀࡿ୰ᛶᏊ཯ᛂ㢖ᗘࡣ 100 x 100
Pm2 ࠶ࡓࡾ 4 ஦㇟࡜ண᝿ࡉࢀࡓ㸬୍᪉㸪Ⓨぢࡉࢀࡓ஦㇟ࡢⓎ⏕㢖ᗘࡣ஝ᯈ 100 x 100 Pm2
࠶ࡓࡾ 3.1寲0.6 ஦㇟࡜㸪࠾࠾ࡼࡑ୍⮴ࡋࡓ㸬ᅗ 2 ࡟Ⓨぢࡋࡓ஦㇟ࡢ῝ࡉศᕸࢆ♧ࡍ㸬῝ࡉ᪉ྥ࡟ᑐࡋ࡚㸪཯ᛂᩘࡀㄗᕪࡢ⠊ᅖ୍࡛ᵝ࡟ศᕸࡋ࡚࠸ࡿ㸬ࡇࡢ⤖ᯝ࠿ࡽࢃ࠿ࡿ㏻ࡾ㸪ங๣ᒙ୰࡛஬࣍࢘㓟ሷࡀ୍ᵝ࡟ศᕸࡋ࡚࠸ࡿ࡜᥎ᐃࡉࢀࡿ㸬࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ཎⴭㄽᩥ㸼࣭ ࡞ࡋ㸺ᅜ㝿࣭ᅜෆ఍㆟㸼࣭ M. Kimura㸪N. Naganawa, D.-K. Yoon, Clarification of the mechanism of proton boron
capture therapy with nuclear emulsion, International conference on advanced imaging 2020
(ICAI2020)㸪proceedings㸪20th Dec. 2020.
㸺⏘ᴗ㈈⏘ᶒ㸼࣭࡞ࡋ

19ู⣬ᵝᘧ㸰㸫㸰

Large Hadron Collider ࡟࠾ࡅࡿ㧗࢚ࢿࣝࢠ࣮ࢽ࣮ࣗࢺࣜࣀ཯ᛂࡢึほ
Towards a first observation of neutrino interactions at the LHC
᭷㈡ᬛᏊ࣭஑ᕞ኱Ꮫ࣭ᇶᖿᩍ⫱㝔࣭ຓᩍ୰ᮧගᘅ㸦ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ࣭ᩍᤵ㸯㸬◊✲┠ⓗ ࢽ࣮ࣗࢺࣜࣀࡣࠊ≉␗࡞ᛶ㉁ࢆᣢࡘࡇ࡜࠿ࡽᮍ▱ࡢἲ๎ࡢゎ᫂࡟ࡘ࡞ࡀࡿࡇ࡜ࡀᮇᚅ
ࡉࢀ࡚࠸ࡿ⣲⢏Ꮚ࡛࠶ࡿࠋ⌧ᅾࠊ≀㉁ඃໃᏱᐂࡢㅦࡸࢽ࣮ࣗࢺࣜࣀ㉁㔞㝵ᒙᛶࡢゎ᫂ࢆ┠ᣦࡍ኱ᆺࡢࢽ࣮ࣗࢺࣜࣀ᣺ືᐇ㦂ࡀ㐍ࡵࡽࢀ࡚࠸ࡿ୍᪉ࠊ㧗࢚ࢿࣝࢠ࣮㡿ᇦ࡛ࡢࢽࣗ
࣮ࢺࣜࣀ◊✲ࡣᐇ㦂ⓗ࡟ᮍ㛤ᣅ࡛࠶ࡿࠋᮏ◊✲࡛ࡣࠊCERN ࡟࠶ࡿୡ⏺᭱኱ࡢ⢏Ꮚຍ㏿
ჾ LHC ࡛⏕ᡂࡉࢀࡿᩘ 100GeV ࠿ࡽᩘ TeV ࡢࢽ࣮ࣗࢺࣜࣀ࡟ࡼࡿ཯ᛂࢆ᳨ฟࡋ࡚ࠊ⌧ᅾࡢຍ㏿ჾ࡟ࡼࡗ࡚⏕ᡂ࡛ࡁࡿ᭱㧗࢚ࢿࣝࢠ࣮ࡢࢽ࣮ࣗࢺࣜࣀࢆ◊✲ࡍࡿࠋ㸰㸬◊✲ෆᐜ࡜ᡂᯝ ◊✲௦⾲⪅ࡀึᮇ࠿ࡽཧ⏬ࡋ࡚ࡁࡓᅜ㝿ඹྠᐇ㦂 FASER ࡣࠊ2018 ᖺ࡟ CERN ࡟ᐇ㦂ࣉ࣏࣮ࣟࢨࣝࢆᥦฟࡋ 2019 ᖺ࡟ᢎㄆࡉࢀࡓ᪂ࡋ࠸ᐇ㦂࡛࠶ࡾࠊᙅࡃ┦஫స⏝ࡍࡿ㍍࠸
᪂⢏Ꮚࡢ᥈⣴࡜୪⾜ࡋ࡚ࠊ㧗࢚ࢿࣝࢠ࣮ࢽ࣮ࣗࢺࣜࣀࡢ◊✲ (FASERȞ) ࢆᐇ᪋ࡍࡿࠋ
◊✲௦⾲⪅ࡣࠊFASERȞ ࡢඹྠࣉࣟࢪ࢙ࢡࢺ࣮ࣜࢲ࣮࡜ࡋ࡚ࠊࢽ࣮ࣗࢺࣜࣀ᳨ฟჾࡢࢹ
ࢨ࢖ࣥࠊ‽ഛࠊゎᯒࢫ࣮࣒࢟ࡢᵓ⠏ࢆ≌ᘬࡋ࡚࠸ࡿࠋᮏ◊✲࡛ࡣࠊࣃ࢖ࣟࢵࢺࣛࣥ࡜ࡋ
࡚ LHC 㝧Ꮚ⾪✺Ⅼ࠿ࡽࣅ࣮࣒㍈ୖ⣙ 480m 㞳ࢀࡓࢺࣥࢿࣝෆ࡟タ⨨ࡋࡓࢱ࣮ࢤࢵࢺ㉁㔞 30kg ࡢ᳨ฟჾࡢゎᯒࢆ㐍ࡵࠊLHC ࡟࠾ࡅࡿ㧗࢚ࢿࣝࢠ࣮ࢽ࣮ࣗࢺࣜࣀ཯ᛂࡢึほࢆ┠ᣦࡋࡓࠋ ࡇࡢゎᯒ࡟࠾࠸࡚༴᝹ࡉࢀ࡚࠸ࡓࡇ࡜ࡣᐇ㦂ᆅⅬ࡛ࡢࣂࢵࢡࢢࣛࣥࢻ࡛࠶ࡿࠋ᳨ฟჾࢆタ⨨ࡋࡓࢺࣥࢿࣝෆ࡛ࡣࢽ࣮ࣗࢺࣜࣀࡔࡅ࡛࡞ࡃ࣑࣮ࣗ࢜ࣥࡶ㣕᮶ࡍࡿࠋ1cm2 ᙜࡓࡾ⣙ 20 ୓ᮏ (ࣔࢪ࣮ࣗࣝᙜࡓࡾ⣙ 2000 ୓ᮏ) ࡢ࣑࣮ࣗ࢜ࣥࡀ᳨ฟჾࢆ㏻㐣ࡍࡿࡢ࡟ᑐ
ࡋࠊࡑࡇ࡛ᮇᚅࡉࢀࡿࢽ࣮ࣗࢺࣜࣀ཯ᛂᩘࡣ 10 ஦㇟⛬ᗘ࡛࠶ࡿࠋࡑࡢ኱㔞ࡢ࣑࣮ࣗ࢜
ࣥࣂࢵࢡࢢࣛࣥࢻࡢ୰࡛ṇ☜࡟㣕㊧ࡢ෌ᵓᡂࢆ⾜࠸ࠊࢽ࣮ࣗࢺࣜࣀ཯ᛂⅬࢆ᳨ฟࡍࡿᚲ
せࡀ࠶ࡗࡓࠋ◊✲௦⾲⪅ࡣࠊ㧗㣕㊧ᐦᗘ࡛ࡢ㣕㊧෌ᵓᡂ࢔ࣝࢦࣜࢬ࣒➼ࡢᢏ⾡㛤Ⓨࢆ⾜࠺ࡇ࡜࡟ࡼࡾࠊࢽ࣮ࣗࢺࣜࣀ཯ᛂೃ⿵ࡢ᳨ฟ࡟ᡂຌࡋࡓࠋࡉࡽ࡟ࠊ⢏Ꮚࡢゅᗘ᝟ሗ࡞࡝
ᗄఱᏛⓗࣃ࣓࣮ࣛࢱࢆ⏝࠸ࡓከኚᩘゎᯒ࡟ࡼࡾࢽ࣮ࣗࢺࣜࣀ཯ᛂ࡜୰ᛶࣁࢻࣟࣥ཯ᛂ
ࡢ㆑ูࢆ⾜ࡗࡓࠋೃ⿵ࡢ࠺ࡕ 2 ౛ࢆᅗ 1 ࡟♧ࡍࠋ⌧ᅾࠊ᭱⤊⤖ᯝࢆㄽᩥ࡟ࡲ࡜ࡵ࡚࠸ࡿࠋ ௒ᚋࠊࡇࡢࣃ࢖ࣟࢵࢺࣛࣥࡢ⤖ᯝࢆᇶ࡟ 2022 ᖺ࠿ࡽ≀⌮ࣛࣥࢆᐇ᪋ࡍࡿࠋᩘⓒ GeV
࠿ࡽᩘ TeV ࡢ㟁Ꮚࢽ࣮ࣗࢺࣜࣀ཯ᛂ ⣙ 1300 ஦㇟ࠊ࣑࣮ࣗࢽ࣮ࣗࢺࣜࣀ཯ᛂ ⣙ 8000஦㇟ࠊࢱ࢘ࢽ࣮ࣗࢺࣜࣀ཯ᛂ 30 ஦㇟⛬ᗘࢆ⵳✚ࡋ࡚ࠊࡑࢀࡒࢀࡢ཯ᛂ᩿㠃✚ࡵ࡜ࡍࡿ◊✲ࢆ⾜࠺ணᐃ࡛࠶ࡿࠋ

20

ᐃࢆጞ

ᅗ 1. ࢽ࣮ࣗࢺࣜࣀ཯ᛂೃ⿵ࡢ౛

࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ゎㄝ㸼
᭷㈡᫛㈗㸪᭷㈡ᬛᏊ㸪ཎᏊ᰾஝ᯈ࡛ᣅࡃࢽ࣮ࣗࢺࣜࣀ◊✲ࡢ࢚ࢿࣝࢠ࣮ࣇࣟࣥࢸ࢕࢔:CERN-FASER ᐇ㦂, ᪥ᮏ෗┿Ꮫ఍ㄅ (2021).
㸺ᅜ㝿࣭ᅜෆ఍㆟㸼࣭Tomoko Ariga, Neutrinos at CERN, XXIX International Conference on Neutrino Physics andAstrophysics (Neutrino2020), online, 2020.06.22-2020-07.02
࣭Tomoko Ariga on behalf of the FASER Collaboration, FASERnu, Neutrino Physics at the LHC
Workshop, online, 2021.01.15.
࣭᭷ ㈡ᬛ Ꮚ , ᭷㈡ ᫛㈗ , ୰㔝 ᩄ⾜ , 㡢 㔝⍛ ಇ , బ ⸨ಟ , ⏣ ❑ὒ ௓, ௚ FASER Collaboration,
LHC-FASER ᐇ㦂: ࢸࢫࢺࣛࣥ࡟࠾ࡅࡿ㧗࢚ࢿࣝࢠ࣮ࢽ࣮ࣗࢺࣜࣀ཯ᛂほ࡜ LHC-Run3 ࡟ྥࡅࡓᒎᮃ, ᪥ᮏ≀⌮Ꮫ఍ ⛅Ꮨ኱఍, ࢜ࣥࣛ࢖ࣥ, 2020 ᖺ 9 ᭶ 14 ᪥-17 ᪥.
࣭᭷㈡ᬛᏊ, ᭷㈡᫛㈗, ୰㔝ᩄ⾜, 㡢㔝⍛ಇ, బ⸨ಟ, ⏣❑ὒ௓, ௚ FASER Collaboration,
CERN LHC ࡟࠾ࡅࡿࢽ࣮ࣗࢺࣜࣀ཯ᛂೃ⿵ࡢึほ2020 ᖺ 12 ᭶ 10 ᪥-11 ᪥.

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23ู⣬ᵝᘧ㸰㸫㸰ࣞ࢔࣓ࢱࣝࣇ࣮ࣜ㧗ᶵ⬟☢ᛶᮦᩱ L10-FeCo ࡢᡂ⭷ᢏ⾡ࡢ㛤Ⓨ
Development of rare-metal-free super magnet L10-FeCoᑠႹ┿ே࣭ᮾி⌮⛉኱Ꮫ࣭ᇶ♏ᕤᏛ㒊࣭෸ᩍᤵ㸯㸬◊✲┠ⓗ㏆ᖺࡢ᝟ሗ໬♫఍ࡢⓎᒎࡸᣢ⥆ྍ⬟࡞♫఍࡬ࡢྲྀࡾ⤌ࡳࡀᛴ㏿࡟㐍ࢇ࡛࠾ࡾࠊࡼࡾ⎔ቃప㈇Ⲵ࡛㧗ᛶ⬟࡞☢ᛶᮦᩱࡢ㛤Ⓨࡀồࡵࡽࢀ࡚࠸ࡿࠋࡇࢀࡲ ࡛ ᡃ ࠎ ࡢ ࢢ ࣝ ࣮ ࣉ ࡛ ࡣ ࠊL 1 0 -FeNi つ ๎ ྜ 㔠 ☢ ᛶ య ᮦ ᩱ ࡢ ๰ 〇 ࡸ ゎ ᯒ ࢆ ⾜࠸ࠊࣞ࢔࢔࣮ࢫࣇ࣮࡛ࣜ࠶ࡾ࡞ࡀࡽ㧗ᛶ⬟☢ᛶయᮦᩱࡢᐇ⌧࡟ྥࡅࡓ◊✲ࢆ 㐍 ࡵ ࡚ ࡁ ࡓ ࠋL 1 0 ᆺ FeCo つ ๎ ྜ 㔠 ( L 1 0 -FeCo)ࡣ ࠊ㕲 ࡜ ࢥ ࣂ ࣝ ࢺ ࢆ ཎ Ꮚ ᒙࣞ ࣋ ࣝ ࡛ ஺ ஫ ࡟ ✚ ᒙ ࡋ ࡓ ṇ ᪉ ᬗ ⣔ (fct)ࡢ つ ๎ ྜ 㔠 ࡜ ࡋ ࡚ ≉ ᚩ ࡙ ࡅ ࡽ ࢀ ࡿ ࠋ

L 1 0 -FeCo ࡣ ࠊࣞ ࢔ ࢔ ࣮ ࢫ ࣇ ࣜ ࣮ ࡞ ࡔ ࡅ ࡛ ࡞ ࡃ ࠊ㑄 ⛣ 㔠 ᒓ ྜ 㔠 ୰ ᭱ ኱ ࡢ ☢ Ẽࣔ ࣮ ࣓ ࣥ ࢺ (⣙ 170 0 emu/cc) ࢆ ♧ ࡋ ࠊ 㧗 ࠸ ࢟ ࣗ ࣜ ࣮ Ⅼ (940 K)࡜ 㧗 ࠸ ☢ Ẽ ␗᪉ ᛶ (1 .7×10 8 erg/cc) ࢆ Ⓨ ⌧ ࡍ ࡿ ࡇ ࡜ ࡀ ணࡉ ࢀ [1 ] ࠊ ḟ ୡ ௦ ࡢ Ọ ஂ ☢ ▼ ᮦ ᩱࡸ ࢫ ࣆ ࣥ ࢺ ࣟ ࢽ ࢡ ࢫ ᮦ ᩱ ࡜ ࡋ ࡚ ᮇ ᚅ ࡀ 㧗 ࡲ ࡗ ࡚ ࠸ ࡿ ࠋࡋ ࠿ ࡋ ࠊFeCo ྜ 㔠 ࡢ᭱ Ᏻ ᐃ ᵓ 㐀 ࡣ B2 ᵓ 㐀 (bcc-baced) ࡛ ࠶ ࡾ ࠊL 1 0 ᵓ 㐀 (fcc-b aced) ࡣ 㠀 ᖹ ⾮ ᵓ 㐀࡜ ࡞ ࡿ ࡇ ࡜ ࠿ ࡽ [2 ] ࠊ ᵓ 㐀 ࡢ ⥔ ᣢ ࡀ 㠀 ᖖ ࡟ ᅔ 㞴 ࡛ ࠶ ࡾ ࠊ ᮍ ࡔ ࡟ స 〇 ࣉ ࣟ ࢭ ࢫࡢ☜❧࡟ࡣ⮳ࡗ࡚࠸࡞࠸ࠋᮏ◊✲࡛ࡣࠊつ๎ᵓ㐀ࢆ⥔ᣢࡋࡘࡘ☢Ẽ࣮࣓ࣔࣥ ࢺ ࡢ ప ୗ ࢆ 㑊 ࡅ ࡿ ࡓ ࡵ ࡟ Ni ࣂ ࢵ ࣇ ࢓ ࣮ ᒙ ࢆ ᥇ ⏝ ࡋ [3 ] ࠊࣂ ࢵ ࣇ ࢓ ࣮ ᒙ ᩘ ࡢኚ໬࡟ຍ࠼ࠊ

ᗘ 㑇 ㉗ ᛶ ࡢ ㄪ ᰝ ࡟ ࡼ ࡿ L 1 0 -FeCo ࡢ ᭱ 㐺 ࡞ ᡂ ⭷ ᮲ ௳ ࡢ ㄪ ᰝࢆ⾜ࡗࡓࡓࡵࠊ⤖ᯝࢆሗ࿌ࡍࡿࠋ

㸰㸬◊✲ෆᐜ࡜ᡂᯝ
ヨ ᩱ స 〇 ࡣ Nd: YAG ࣞ ࣮ ࢨ ࣮ (Ἴ 㛗 266 nm)ࢆ ഛ ࠼ ࡓ PLD ⿦ ⨨ ࢆ ⏝ ࠸ ࡚
⾜ ࡗ ࡓ ࠋMgO(100 )༢ ⤖ ᬗ ᇶ ᯈ ࢆ ࢔ ࢽ ࣮ ࣝ ฎ ⌮ ᚋ ࠊᐊ

࡛ Cu(50 nm) ࢆ ⵨ ╔ࡋ ࠊ ࡑ ࡢ ᚋ 300Ԩ࡛ ࣏ ࢫ ࢺ ࢔ ࢽ ࣮ ࣝ ࡋ ࠊ ୗ ᆅ ᒙ ࡜ ࡋ ࡓ ࠋ ༢ ཎ Ꮚ ஺ ஫ ✚ ᒙ ࡟ࡼ ࡾ 50M L ㏆ ഐ ࡢ ཌ ࡳ ࡛ ⧞ ࡾ ㏉ ࡋ ༢ ఩ ࡢ FeCo ᒙ ࢆ 7 ᒙ ࡜ ࡋ ࠊNi ࣂ ࢵ ࣇ ࢓࣮ ᒙ ᩘ ࢆ 1㹼 3 ᒙ ࡟ ኚ ໬ ࡉ ࡏ ࠊ(7 M L-FeCo/x M L-Ni b uffer)y(x=1 ,2 ,3 y=4 ,5)ࢆ స 〇 ࡋ ࡓ ࠋ ࡑ ࡢ 㝿 ࡢ T s ࢆ RT, 450 , 6 00Ԩ࡜ ኚ ໬ ࡉ ࡏ ࡚ ࣉ ࣟ ࢭ ࢫ ᮲ ௳ ࢆ ㄪᰝ ࡋ ࡓ ࠋ ≀ ᛶ ゎ ᯒ ࡣ ࠊ ཯ ᑕ 㧗 ㏿ 㟁 Ꮚ ᅇ ᢡ (RHEED)ࠊ ཎ Ꮚ 㛫 ຊ 㢧 ᚤ 㙾 (AFM)࡟ ࡼ ࡾ ⾲ 㠃 ᵓ 㐀 ࡢ ホ ౯ ࠊ X ⥺ ᅇ ᢡ (XRD) ࡟ ࡼ ࡾ ᵓ 㐀 ゎ ᯒ ࢆ ⾜ ࡗ ࡓ ࠋ ࡲ ࡓ ࠊ☢ Ẽ ≉ ᛶ ホ ౯ ࡣ ㉸ ఏ ᑟ 㔞 Ꮚ ᖸ ΅ (SQUID)☢ ຊ ィ ࢆ ⏝ ࠸ ࡚ ⾜ ࡗ ࡓ ࠋ ᚓ ࡽ ࢀ ࡓᵓ㐀ཬࡧ☢Ẽ≉ᛶࡢ⤖ᯝࢆከゅⓗ࡟ẚ㍑᳨ウࡍࡿࡇ࡜࡛ࠊ☢Ẽ␗᪉ᛶྥୖ
ࡢᣦ㔪⋓ᚓࢆヨࡳࡓࠋ24

 RHEED ࡢ ⤖ ᯝ ࠿ ࡽ ࡣ ࠊ඲ ࡚ ࡢᗘ ᇦ ࡛ B2 ᵓ 㐀 ࡬ ࡢ ㌿⛣ ࡣ ᢚ ไ ࡉ ࢀ ࠊ fcc-like ࡞ ᵓ 㐀 ࡢ ⥔ ᣢ ࢆ ☜ ㄆ ࡋ ࡓ ࠋ Fig. 1࡟ྛᡂ㛗ᗘ ࡛ స 〇 ࡋ ࡓ (7 ML-FeCo/3 ML-Ni) 5 ⭷ ࡢ 㠃 ෆ

XRD ࣃ ࢱ ࣮ ࣥ ࢆ ♧ ࡍ ࠋ ࡑ ࡢ ⤖ ᯝ ࠊ FeCo(110)࡛ ࡢ ࣆ ࣮ ࢡࢆ ᐊ ෆ ⵨ ╔ ࡟ ࡚ ☜ ㄆ ࡋ ࡓ ࠋ ࡑ ࡢ ᚋ ࠊ X ⥺ ␗ ᖖ ᩓ ஘ (AXS)࡟ ࡼ ࡿ ᅇ ᢡ ᙉ ᗘ ኚ ໬ ࡀ ぢ ࡽ ࢀ ࡓ ࡇ ࡜ ࠿ ࡽ L 1 0 -FeCo ┦ ࡢᙧ ᡂ ࢆ ☜ ㄆ ࡋ ࡓ ࠋ ࡲ ࡓ T s = 450Ԩ࡟ ࠾ ࠸ ࡚ ࠊ FeCo ࡜ Ni
࡟ ⏤ ᮶ ࡍ ࡿ (220 )ࣆ ࣮ ࢡ ࡀ ศ 㞳 ࡋ ࡚ ࠾ ࡾ ࠊ ຍ ⇕ ࡟ ࡼ ࡗ ࡚ ࡦࡎ ࡳ ࡀ ᑟ ධ ࡉ ࢀ ࡓ ࡇ ࡜ ࡀ ♧ ၀ ࡉ ࢀ ࡓ ࠋ Fig. 2 ࡟ (7M L- FeCo/3 M L-Ni) 5 ࡢ ☢ Ẽ ≉ ᛶ ࡢ ࣂ ࢵ ࣇ ࢓ ࣮ ᒙ ᩘ ౫ Ꮡ ᛶ࠾ࡼࡧᡂ⭷ᗘ ౫ Ꮡ ᛶ ࢆ ♧ ࡍ ࠋ 㣬 ࿴ ☢ ໬ ( M s )ࡣ ༢ ఩ య ✚࠶ ࡓ ࡾ ࡢ FeCo ẚ ⋡ ࡀ 㧗 ࡃ ࡞ ࡗ ࡓ ࡇ ࡜ ࡛ ࣂ ࢵ ࣇ ࢓ ࣮ ᒙ ᩘ ࡢ ῶᑡ ࡜ ࡜ ࡶ ࡟ ቑ ຍ ࡋ ࡓ ࠋࡇ ࢀ ࡣ ࢫ ࣞ ࣮ ࢱ ࣮ ࣏ ࣮ ࣜ ࣥ ࢢ ᭤ ⥺ ࡢ ⤖Fig.1 In-planeXRD patterns measured
using synchrotron radiation with X-ray
Energy of 7.11 keV for (7 ML-FeCo/3
ML-Ni)3 films

ᯝ ࡜ ୍ ⮴ ࡍ ࡿ ࠋࡑ ࡢ ୍ ᪉ ࡛ ࠊ⤖ ᬗ ☢ Ẽ ␗ ᪉ ᛶ ࢚ ࢿ ࣝ ࢠ ࣮( K u )ࡣ ࠊ ࣂ ࢵ ࣇ ࢓ ࣮ ᒙ ᩘ ࢆ 3 ᒙ ࡟ ࠾ ࠸ ࡚ ᭱ ኱ ್ ࢆ ࡜ ࡾ ࠊ

T s = 450 Ԩࡢ ヨ ᩱ ࡟ ࠾ ࠸ ࡚ ᭱ ኱ ್ K u = 2 .2 × 10 6 erg/ccࢆ ♧ ࡋ ࡓ ࠋᮏ ヨ ᩱ ࡣ FeCoNi ࡢ ྜ 㔠 ໬ ࡟ క ࠺ つ ๎ ᗘ ࡢ పୗ ࡀ ㄆ ࡵ ࡽ ࢀ ࡿ ୍ ᪉ ࡛ ࠊc ㍈ ṍ ࡳ ࡀ ☜ ㄆ ࡉ ࢀ ࡿ ࡇ ࡜ ࠿ ࡽ ࠊ᱁Ꮚࡦࡎࡳࡀ☢Ẽ␗᪉ᛶࡢྥୖ࡟ᐤ୚ࡋ࡚࠸ࡿࡇ࡜ࡀ
♧၀ࡉࢀࡓࠋ ᮏ ◊ ✲ ࡛ ࡣ ࠊ 㧗 ☢ Ẽ ␗ ᪉ ᛶ ᮦ ᩱ L 1 0 -FeCo ࡢ స 〇 ࣉ ࣟࢭ ࢫ ࣭ ᮲ ௳ ࡢ ᳨ ウ ࢆ ┠ ⓗ ࡟ ࠊᡂ 㛗ᗘࡸࣂࢵࣇ࢓࣮ᒙᩘࢆ ኚ ໬ ࡉ ࡏ ࡚ (7 M L-FeCo/3 M L- Ni) 3 ከ ᒙ ⭷ ࡢ స 〇 ཬ ࡧᶵ ⬟ ゎ ᯒ ࢆ ⾜ ࡗ ࡓ ࠋࡑ ࡢ ⤖ ᯝ ࠊᵓ 㐀 ཬ ࡧ ☢ Ẽ ≉ ᛶ ࡢ ほ Ⅼ࠿ ࡽ ࠊ௒ ᅇ స 〇 ࡋ ࡓ ⠊ ᅖ ࡟ ࠾ ࡅ ࡿ (7 M L- FeCo/x M L- Ni) yከᒙ⭷ࡢస〇࡟࠾࠸࡚ࡣຍ⇕࡟ࡼࡿྜ㔠ᙧᡂࡀ㐺ࡋ࡚࠸ ࡿ ࡇ ࡜ ࡀ ♧ ၀ ࡉ ࢀ ࡓ ࠋ ௒ ᚋ ࡣ ࠊ ⭷ ㉁ ࡢ ᨵ ၿ ࡟ ࡼ ࡾ L1 0つ๎໬ࢆಁࡍࡇ࡜࡛㧗࠸☢Ẽ␗᪉ᛶࢆタィࡍࡿ࡜࡜ࡶ࡟ࠊస〇ࣉࣟࢭࢫࡢ㐪࠸࡟ࡼࡿྜ㔠ᵓ㐀ࡢㄪᰝࡀᚲせ࡛࠶ࡿࠋFig.2 Magnetic properties on thenumber of buffer layers and growthtemperaturedependencefor(7
ML-FeCo/3 ML-Ni)3 films࠙ཧ⪃ᩥ⊩ࠚ
[1] T. Burker t et. al. , Phys. Rev. Lett., 9 3 , 0 2 72 03 (2 00 4).
[2] J. Shen et. al. , Sur f. Sc i. Rep., 5 2 , 16 3 (2 00 4).
[3] H. Ito et. al. , AIP Adv., 9 , 0 45 30 7 (2 019 ) .

࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ⇃㇂༟ஓ, ఀ⸨ஂ᫭, ᐑୗᣅஓ, ᒣཱྀ⪷▮, ᐑ⏫ಇ⏕, ᑠ᳃ᩥኵ, ୕ᾆⰋ㞝, ᑠႹ┿ே,“Fe/Co ከᒙ⭷࡟࠾ࡅࡿ⭷ᵓ㐀ࡢ᥈⣴“, 㢧ᚤࢼࣀᮦᩱ◊✲఍, 4-5, Mar. (2019), Tsukuba,
Japan

25

ู⣬ᵝᘧ㸰㸫㸰Ỉ࿴⏕యศᏊࡢ࢚ࢿࣝࢠ࣮ఏ㐩㐣⛬ࡢ◊✲Energy Transfer Process on Hydrated Biomolecules⸨஭೺ኴ㑻࣭㔞Ꮚ⛉Ꮫᢏ⾡◊✲㛤Ⓨᶵᵓ࣭㔞Ꮚࣅ࣮࣒⛉Ꮫ㒊㛛ḟୡ௦ᨺᑕග᪋タᩚഛ㛤Ⓨࢭࣥࢱ࣮࣭ୖᖍ◊✲ဨඵᮌఙஓ࣭ྡྂᒇ኱Ꮫ࣭㧗ᗘィ ᢏ⾡ᐇ㊶ࢭࣥࢱ࣮࣭ᩍᤵ
㸯㸬◊✲┠ⓗ ගྜᡂ࡟ࡼࡿ࢚ࢿࣝࢠ࣮ఏ㐩ࡣࠊ୺࡟ⴥ⥳యࡢ⭷ୖ࡛⾜ࢃࢀࡿࡀࠊࡑࡢ㝿࡟ $73 ࡞࡝ࡢ᰾㓟ศᏊ࡛㉳ࡇࡿࣜࣥ㓟ᇶࡢ⬺㞳࣭⼥ྜࢆ㏻㈌࡜ࡋ࡚࢚ࢿࣝࢠ࣮ࡢఏ㐩ࡀ⾜ࢃࢀࡿࠋࡈࡃ᭱㏆ࠊ$73 ࢆྲྀࡾᅖࡴỈศᏊ࡜ $73 ศᏊ࡜ࡢ㛫࡛㉳ࡇࡿ㟁Ꮚࡸࣉࣟࢺࣥࡢ⛣ືࡀ࢚ࢿࣝࢠ࣮ఏ㐩࡟ᐦ᥋࡟࠿࠿ࢃࡗ࡚࠸ࡿࡇ࡜ࡀ⌮ㄽⓗ࡟ண ࡉࢀࡓࠋᮏ◊✲࡛ࡣࠊࡇࡢ㐣⛬࡟ࡘ࠸࡚ࡢᐇ㦂ⓗ࡞࢔ࣉ࣮ࣟࢳ࡟ࡼࡿ᝟ሗࢆᚓࡿࡇ࡜ࢆ┠ⓗ࡜ࡋ࡚ࠊ⏕యศᏊࢆྲྀࡾ
ᅖࡴỈศᏊ࡜ࡢ㛫࡛㉳ࡇࡿ㟁Ⲵ⛣ື࠾ࡼࡧࣉࣟࢺࣥ⛣ື⌧㇟࡟╔┠ࡋࠊᨺᑕග㌾ ; ⥺࡟ࡼࡿඖ⣲㑅ᢥⓗ࢖࢜ࣥ໬ᚋ࡟㉳ࡇࡿࡇࢀࡽࡢ⌧㇟ࢆࠊ㌾ ; ⥺ศග࡟ࡼࡗ࡚᥎

ࡋࡓࠋ㸰㸬◊✲ෆᐜ࡜ᡂᯝ

࣓࢝ࢽࢬ࣒ࢆ฼⏝ࡋࡓ࢚ࢿࣝࢠ࣮⏕ᡂࡀᐇ⌧࡛ࡁࢀࡤࠊ┬࢚ࢿࣝࢠ࣮ࢹࣂ
࢖ࢫ࡞࡝ࡢᐇ⌧࡟ྥࡅ࡚኱ࡁࡃ๓㐍ࡍࡿࡇ࡜ࡀᮇ
ᚅࡉࢀࡿࠋࡲࡓ᰾㓟ሷᇶ࡜ỈศᏊࡣ⮬↛⎔ቃ࡟ᙜ

2
1
0
2
1

㐺ྜᮦᩱ࡜ࡋ࡚ࡶ᭱ࡶ㐺ࡋࡓࡶࡢࡢ୍ࡘ࡜⪃࠼ࡽࢀࠊ⏕⏘࠿ࡽᗫᲠ࡟⮳ࡿࡲ࡛ࡢ࢚ࢿࣝࢠ࣮ࢥࢫࢺ
ࡣᴟࡵ࡚ᑡ࡞ࡃᢚ࠼ࡽࢀ
ࡿࠋ࢖࢜ࣥᾮయෆࡢ㟁Ⲵ⛣ື⌧㇟ࡢᇶ♏㐣⛬࡟㛵(e) O-Kedge
Dry

1
0
2

(g) O-Kedge
Hydrate10dAMP(b) N-Kedge
Dry1(d) N-Kedge
Hydrate

1

0.5

2

XANES Intensity (relative)ࢹࣂ࢖ࢫࡢᛂ⏝ࡣࠊ⎔ቃ

2

0
1.5

0
395 400 405 410 415
Energy (eV)ࡓࡾ๓࡟Ꮡᅾࡍࡿ≀㉁࡛
࠶ࡾࠊࡇࢀࡽࢆ฼⏝ࡋࡓ(c) N-Kedge
HydrateXANES Intensity (relative)ࡣ㠀ᖖ࡟㧗ຠ⋡࡛ࠊࡑࡢ(a) N-KedgeDry0
395 400 405 410 415
Energy (eV)2

XANES Intensity (relative)ෆࡢ࢚ࢿࣝࢠ࣮⏘⏕⬟ຊAMP

XANES Intensity (relative) ගྜᡂ࡞࡝ࡢ⏕యศᏊ(f) O-Kedge
Dry

1

0
1.5
1

(h) O-Kedge
Hydrate0.5

0
530 535 540 545 550
530 535 540 545 550
Energy (eV)Energy (eV)Figure 1 XANES spectra of soft X-ray
irradiated AMP and dAMP.

26

ࡍࡿ▱ぢ࡜࡞ࡾࠊᢏ⾡ⓗ࡞㠉࿨ࡀᮇᚅࡉࢀ࡚࠸ࡿ⏕యศᏊࢆ⏝࠸ࡓ㟁Ꮚࢹࣂ࢖ࢫࡢ㛤Ⓨ࡟࠾࠸࡚㔜せ࡞▱ぢ࡜࡞ࡿࡇ࡜ࡀᮇᚅࡉࢀࡿࠋ
᰾㓟ሷᇶ࡞࡝ࡢ⏕యศᏊ࡜ࡑࡢ࿘ࡾࢆྲྀࡾᅖࡴỈ࿴ỈศᏊ࡜ࡢ㛫࡛㉳ࡇࡿࠊࣉࣟࢺࣥ
ࡸ㟁Ꮚ࡜࠸ࡗࡓ㟁Ⲵ⛣ືࡢ⤖ᯝ࡜ࡋ࡚⏕ࡌࡿศᏊࡢᵓ㐀ኚ໬ࢆほ ࡋࡓࠋ࢔ࢹࣀࢩ୍ࣥ
ࣜࣥ㓟 $03 ࡜ࢹ࢜࢟ࢩ࢔ࢹࣀࢩ୍ࣥࣜࣥ㓟 G$03 ࢆᑐ㇟ヨᩱ࡜ࡋ࡚ᐇ㦂ࢆᐇ᪋ࡋࡓࠋ
஝⇱≧ែ࠾ࡼࡧỈ࿴≧ែ࡟࠾࠸࡚ࠊᵓᡂඖ⣲ࢆ࢖࢜ࣥ໬ࡍࡿࡓࡵࡢ㌾ ; ⥺ࢆ↷ᑕࡋࠊ↷ᑕ๓ᚋࡢ㌾ ; ⥺྾཰ࢫ࣌ࢡࢺࣝࡢኚ໬࠿ࡽ࢖࢜ࣥ໬࡟ࡼࡿศゎ㐣⛬ࢆ᥎ᐹࡋࡓࠋ
)LJ ࡟஝⇱࠾ࡼࡧỈ࿴ヨᩱࡢ㌾ ; ⥺㸦H9㸧↷ᑕ๓ᚋࡢ㌾ ; ⥺ . Ẇ྾཰➃㏆ഐᚤ⣽ᵓ㐀 ;$1(6 ࢫ࣌ࢡࢺࣝࢆ♧ࡍࠋ$03 ࡜ G$03 ࡜࡛ࡣࠊG$03 ࡢ᪉ࡀ㓟⣲ . Ẇ ;$1(6 㡿ᇦ࡟⌧ࢀࡿࢫ࣌ࢡࢺࣝኚ໬ࡀ㢧ⴭ࡛࠶ࡿࡇ࡜࠿ࡽࠊG$03 ࡢ࣮ࣜ࣎ࢫ㒊఩ࡀศゎࡋࡸࡍ࠸ࡇ
࡜ࡀ♧၀ࡉࢀࡓࠋࡇࡢ㐪࠸ࡣࠊỈ࿴࡟ࡼࡿ⬺ࣉࣟࢺࣥ㐣⛬⏤᮶࡜᥎ᐹࡉࢀࠊ ఩ࡢⅣ⣲㒊఩ࡢ 2+ ᇶ㒊ศ࡟࠾࠸࡚Ỉ࿴ỈศᏊ࠿ࡽࡢ⬺ࣉࣟࢺࣥ㐣⛬࡟ࡼࡗ࡚㢧ⴭ࡟࢝ࣝ࣎࢟ࢩ
ࣝᇶࢆ⏕ᡂࡍࡿྍ⬟ᛶࡀ࠶ࡿࠋ ఩ࡢⅣ⣲㒊఩ࡣࢾࢡࣞ࢜ࢩࢻศᏊࡢ୰࡛ࡶ᭱ࡶ⬤ᙅ࡞㒊఩ࡢ୍ࡘ࡛࠶ࡾࠊࡇࡢ㒊఩ࡢศゎࡀ '1$ ࡸ 51$ ࡞࡝ࡢ୺㙐㒊ศࡢษ᩿࡟┤᥋㛵ಀࡍࡿࠋࡲࡓ❅⣲ . Ẇ ;$1(6 ࢫ࣌ࢡࢺ࡛ࣝࡣ୧⪅ࡢヨᩱ࡟࠾࠸࡚㢧ⴭ࡞ኚ໬ࡀぢࡽࢀ࡞࠸ࡇ࡜࠿
ࡽࠊ࢔ࢹࢽࣝᇶࡢศゎ࡟ࡣ࣮ࣜ࣎ࢫ㒊఩ࡢ㐪࠸࡟ࡼࡿኚ໬ࡣぢࡽࢀ࡞࠿ࡗࡓࠋ࢔ࢹࣀࢩ
ࣥ᰾㓟ࡢ㛵㐃ࡍࡿ⏕యศᏊ࡛࠶ࡿ࢔ࢹࣀࢩࣥ୕ࣜࣥ㓟㸦$73㸧ࡣࠊ⏕యෆ࡛ࡢ࢚ࢿࣝࢠ
࣮⏘⏕࡟ಀࡿศᏊ࡛࠶ࡿࠋ$73 ࢆྲྀࡾᅖࡴỈศᏊ࡜ࡢ㛫࡛㉳ࡇࡿࣉࣟࢺࣥࡢ⛣ືࡀࠊ࢚ࢿࣝࢠ࣮ఏ㐩࡟ᐦ᥋࡟࠿࠿ࢃࡗ࡚࠸ࡿ࡜࠸࠺⌮ㄽィ⟬ࡢ⤖ᯝࡀⓎ⾲ࡉࢀ࡚࠾ࡾࠊ௒ᅇࡢ
▱ぢࡣࠊศゎᇶ♏ㄢ⛬ࢆᐇ㦂ⓗ࡟᫂ࡽ࠿࡟ࡋࡓࡶࡢ࡛࠶ࡿࠋ
ୖグ࡟㛵ಀࡍࡿᡂᯝࢆᅜෆࡢᏛ఍࡟࠾࠸࡚  ௳ࠊᅜෆࡢᨺᑕග㛵ಀࡢᏛ఍࡟࠾࠸࡚ᣍ
ᚅㅮ₇  ௳ࢆ⾜ࡗࡓࠋ࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ᅜෆ఍㆟㸼࣭ ⸨஭೺ኴ㑻㸪㔞◊ᶵᵓ, ᨺᑕ⥺⏕≀◊✲࡜㌾ X ⥺ศග㸪᪥ᮏᨺᑕගᏛ఍ᖺ఍㸪web
ᣍᚅㅮ₇
㛤ദ㸪2021 ᖺ 1 ᭶ 9 ᪥㹼11 ᪥.ᣍ
࣭ ⸨஭೺ኴ㑻㸪㔞◊ᶵᵓ, ḟୡ௦ᨺᑕග᪋タࢆ฼⏝ࡋࡓ㔞Ꮚ⏕࿨⛉Ꮫ◊✲ࡢᒎ㛤㸪㔞Ꮚ⏕࿨⛉Ꮫඛ➃ࣇ࢛࣮࣒ࣛ 2020 ᖺኟࡢຮᙉ఍㸪web 㛤ദ㸪2020 ᖺ 8 ᭶ 20 ᪥㹼21 ᪥.
࣭⸨஭೺ኴ㑻 1㸪ᖹ㔝ඃ 1, ⋢⏣ኴ㑻 1, ᐑ⬥῟ 1, Ᏻ㐩ᇶὈ 1, Ἠ㞝኱ 2, ཎ⏣ឿஂ 3, 1
㔞◊ᶵᵓ, 2 ᗈᓥ኱ᨺᑕග, 3 ᮾ኱≀ᛶ◊, ḟୡ௦ᨺᑕගࢆ฼⏝ࡋࡓ㔞Ꮚ⏕࿨⛉Ꮫࡢᒎᮃ㸪➨ 2 ᅇ㔞Ꮚ⏕࿨⛉Ꮫ఍㸪web 㛤ദ㸪2020 ᖺ 12 ᭶ 10 ᪥㹼15 ᪥.

27┬㺒㺦㺷㺕㺼㺎໬ࢆಁ㐍ࡍࡿ⪏ೃᛶ IoT 㺡㺼㺨㺼㺐㺛ࡢᙉᗘタィᇶ‽࡟㛵ࡍࡿ◊✲
Study on strength design standards in environmental-resistant IoT devices forenergy-saving promotion㧗ᶫྍᫀ 㛵す኱Ꮫ ࢩࢫࢸ࣒⌮ᕤᏛ㒊 ᩍᤵṊ⸨ಇ௓ ྡྂᒇ኱Ꮫ ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ ᩍᤵ㸯㸬◊✲┠ⓗ ♫఍࡟ᩓᅾࡍࡿ㺒㺦㺷㺕㺼㺎ᶵჾࢆࠊࡑࡢ኱ᑠࢆၥࢃࡎ IoT(Internet of Things)ᢏ⾡࡟ࡼࡾ⼥ྜࡋࠊⓗ☜࡞㺒㺦㺷㺕㺼㺎㟂せண࡜↓㥏ࢆ┬࠸ࡓ㓄ศࢆ㐩ᡂࡍࡿ㺐㺻㺪㺵㺚㺛㺡㺯࡬࡜㐍໬ࡉࡏࡿࡇ

࡜ࡀᛴົ࡛࠶ࡿࠋࡑࡢᐇ⌧ࡢ㘽ࢆᥱࡿࡢࡣࠊᶵჾࢆᖖ᫬㺱㺤㺞㺎ࡍࡿࡓࡵࡢᏳ౯࡛ಙ㢗ᛶࡢ㧗࠸ᑠᆺ⪏ೃᛶ㺡㺼㺨㺼㺐㺛ࡢ⇿Ⓨⓗᬑཬ࡛࠶ࡿࠋ୍᪉ࠊ㺡㺼㺨㺼㺐㺛ࡢᙉᗘタィࢆྜ⌮ⓗ࡟⾜࠺ࡓࡵࡢຊᏛⓗᣦ㔪࡟ࡣ☜ᅛࡓࡿࡶࡢࡀ↓ࡃࠊ⤒㦂࡟㢗ࡿ࡜ࡇࢁࡀ኱ࡁ࠸ࠋᮏ◊✲࡛ࡣࠊ㟁Ꮚ㢧ᚤ㙾ෆ࡟࠾࠸࡚ࠊ㺡㺼㺨㺼㺐㺛ࢆᵓᡂࡍࡿ㺭㺐㺖㺹㺛㺗㺎㺷ࡢᵝࠎ࡞ᚤᑠせ⣲ࢆ⏝࠸ࡓࠕຊᏛⓗ࡞ᙉᗘホ౯ࠖ࡜ᙉᗘྥୖ࡟⧅ࡀࡿࠕᮦᩱᏛⓗ᝟ሗࡢᢳฟࠖࢆྠ᫬࡟㐩ᡂࡍࡿ࡜ඹ࡟ࠊᙉᗘ
ỴᐃᅉᏊࢆෆໟࡋࡓྜ⌮ⓗ࡞タィ࣭ホ౯ᇶ‽ࡢ࠶ࡾ᪉࡟ࡘ࠸࡚⪃ᐹࡍࡿࡇ࡜ࢆ┠ⓗ࡜ࡋ࡚࠸ࡿࠋ㸰㸬◊✲ෆᐜ࡜ᡂᯝ ୖグ┠ⓗࢆ㐩ࡍࡿୖ࡛ሗ࿌⪅ࡽࡀ㔜せどࡋ࡚࠸ࡿࡢࡣࠊ␗࡞ࡿᮦᩱࡢ᥋ྜ⏺㠃ᙉᗘ≉ᛶ࡛࠶ࡿࠋ⏺㠃࡟ἢࡗࡓ๤㞳◚ቯࡢⓎ⏕ᙉᗘ㸦㺔㺼㺛ࡢᙳ㡪ࢆྵࡴ㸧ࢆዴఱ࡟ࡋ࡚ᐃ㔞ⓗ࡟ᢅ࠺࠿ࡣࠊ࡜ࡾࢃࡅタィୖࡢ㘽࡜࡞ࡿࠋ๓ᖺᗘࡣỈ⣲࡟ࡼࡿᙉᗘపୗࡢᐃ㔞໬ࢆ┠ᶆ࡜ࡋ࡚ࠊỈ⣲ྵ᭷㺔㺼㺛(N2-20%H2)ཬࡧ㺫㺼㺎㺛㺔㺼㺛࡛࠶ࡿ N2 㺔㺼㺛ࢆ⏝࠸ࡓホ౯ࢆᐇ᪋ࡋࡓࠋࡑ
ࡢ⤖ᯝࠊỈ⣲ࡣඖࡼࡾࠊ㏻ᖖࡣ୙άᛶ࡞ N2 㺔㺼㺛୰࡟࠾࠸࡚ࡶ㸦⏺㠃➃ᙧ≧࡟ࡼࡗ࡚ࡣ㸧᝿ᐃእࡢᙉᗘపୗࡀㄆࡵࡽࢀࡓࠋࡇࡢ⤖ᯝ࡟ࡼࡾỈ⣲࡜ΰྜࡍࡿ㺫㺼㺎㺛㺔㺼㺛ࡢ㑅ᐃࡀႚ⥭ࡢㄢ㢟࡜࡞ࡗࡓࠋ
ࡑࡇ࡛ࠊ௒ᖺᗘࡣ㺫㺼㺎㺛㺔㺼㺛࡜ࡋ࡚᪂ࡓ࡟㺦㺓㺻(Ne)ᵝ࡟ࠊSi ᇶᯈୖ࡟ Cu ⭷࡜ SiN ⭷ࢆሁ✚ࡋࡓᮦᩱ࠿ࡽ FIB ࢆ⏝࠸ࡓ㺭㺐㺖㺹㺙㺻㺪㺽㺶㺻㺖㺼ἲ࡟ࡼࡾస〇ࡋࡓࠋ
௒ᅇࡣゅᗘࡀ 90rࡢษḞࡁࢆ᪋ࡋࡓヨ㦂∦(๓ᖺᗘ࠿ࡽࡢ⥆ࡁ࡛ Type Ia ࡜⾲グ)ࡢࡳࢆᑐ㇟࡟ᙉᗘホ౯ࢆᐇ᪋ࡋࡓ(ᅗ 1)ࠋࡇࡢヨ㦂∦ࢆ㺣㺧㺐㺻㺡㺼㺻㺢㺬㺷㺞㺼㺎(HN200E)࡬ྲྀࡾ௜ࡅࠊ཯ᛂ⛉Ꮫ㉸㧗ᅽ㟁Ꮚ㢧ᚤ㙾(RSHVEM)୰࡟࠾࠸࡚ࡑࡢሙほᐹࡋ࡞ࡀࡽ◚ቯᐇ㦂ࢆ⾜ࡗࡓࠋ㺔㺼㺛✀ࡣ᫖ᖺࡲ࡛ࡢ⣧ N2ࠊN2-20%H2 㺔㺼

28

15

Applied load F, PNࢆ⏝࠸ࡓホ౯ࢆᐇ᪋ࡋࡓࠋヨ㦂∦ࡣ๓ᖺᗘࡲ࡛࡜ྠ

Fc

B

10
C

Si

Cu SiN

5

C

1 Pm

0

A
0

50

100

Time t, sᅗ1 Type Iaヨ㦂∦䛸䛭䛾◚ቯᐇ㦂౛㺛࡟ຍ࠼࡚⣧ NeࠊNe-20%H2 㺔㺼㺛ࢆ⏝࠸ࡓࠋᮏᐇ㦂⤖ᯝࢆᇶ࡟ࠊSi/Cu ⏺㠃࡟ἢࡗ࡚๤㞳◚ቯࡀⓎ⏕ࡍࡿ᫬Ⅼ(ᅗ 1 ୰ B Ⅼ)࡟࠾ࡅࡿᛂຊศᕸࢆ 3 ḟඖ᭷㝈せ⣲ἲ࡟ࡼࡾゎᯒࡋࡓࠋゎᯒ⤖ᯝࢆᅗ 2 ࡟♧ࡍࠋࡇࡇ࡛ࡢᙉᗘ್ࡣࠊ⏺㠃➃㒊㏆ഐࡢV = K/rO࡛⾲ࡉࢀࡿ₞㏆ᛂຊሙ(≉␗ᛂຊሙ)ࢆ௦⾲ࡍࡿ㺨㺽㺵㺰㺎㺞㺎 K࡟ࡼࡗ࡚⾲グࡋ࡚࠸ࡿࠋ
ྠ୍⏺㠃➃ᙧ≧࡟ᑐࡋ࡚Ȣࡣ୍ᐃ࡛࠶ࡿࡓࡵࠊK ࡢࡳࢆ⏝࠸࡚࠸ࡿࠋ
┿✵୰ࡢᙉᗘ್ࢆᇶ‽࡜ࡋࡓሙྜࠊỈ⣲ྵ᭷㺔㺼㺛

Critical stress intensity factor
KC, MPa䞉mOc

ゎᯒ࡛ࡣ࠸ࡎࢀࡢᮦᩱࡶᙎᛶయ࡛࠶ࡿ࡜௬ᐃࡋࡓࠋ

0.5Type Iaヨ㦂∦+20.2 %

0.4
0.3
-11.9 %

0.2

-5.6 %-7.3 %

0.1
0Vacuum

N 2H 2

N2

Ne/H2

Ne

ᅗ2 ྛ䜺䝇୰䛻䛚䛡䜛SiCu⏺㠃๤㞳◚ቯⓎ⏕ᙉᗘ䛾ẚ㍑
䠄ᅗ୰䛾ᩘᏐ䛿┿✵୰䛾್䜢ᇶ‽䛸䛧䛯ቑῶ䜢♧䛩䠅

(N2-H2ࠊN2-Ne)୰࡟࠾ࡅࡿᙉᗘࡣ࠸ࡎࡶపୗࡋ࡚࠸ࡿࠋࡲࡓࠊ⣧ N2 ୰࡟࠾࠸࡚ࡶࢃࡎ࠿
࡞ࡀࡽᙉᗘపୗࡀㄆࡵࡽࢀࡿࠋู㏵ᐇ᪋ࡋࡓ STEM-EDS ࡟ࡼࡿඖ⣲ศᯒ࡛ࡣࠊSi/Cu ⏺
㠃࡟❅໬≀➼ࡢ⏕ᡂࡣ☜ㄆࡉࢀ࡞࠿ࡗࡓࠋ୍᪉ࠊ⣧ Ne 㺔㺼㺛୰࡟࠾࠸࡚ࡣࠊ㏫࡟ᙉᗘࡀ
ୖ᪼ࡍࡿ⤖ᯝ࡜࡞ࡗࡓࠋ⌧᫬Ⅼ࡛ࡣࠊࡇࢀࡽࡢ⌧㇟ࢆྜ⌮ⓗ࡟ㄝ᫂ࡍࡿ࡟ࡣ⮳ࡗ࡚࠸࡞࠸ࡶࡢࡢࠊ㺔㺼㺛ࡢάᛶ࣭୙άᛶࢆၥࢃࡎᙉᗘ್࡬ࡢᙳ㡪ࡀᏑᅾࡍࡿࡇ࡜ࡀ♧ࡉࢀࡓព⩏ࡣ኱ࡁ࠸ࠋ㟁Ꮚ㢧ᚤ㙾୰࡛ࡢホ౯ࡣࠊ┿✵୰࡛࠶ࡗ࡚ࡶ㟁Ꮚ㺩㺼㺎㺯↷ᑕୗ࡟࠶ࡿࡇ࡜ࢆ⪃࠼ࢀࡤࠊヨᩱ࡬ࡢᐇຠ㺢㺼㺎㺛㺼㔞ࡢᙳ㡪ࡀ♧ࡉࢀࡓ࡜ゎ㔘ࡍࡿࡇ࡜ࡶ࡛ࡁࡿࠋࡲࡓࠊ㺔㺼㺛୰࡟࠾ࡅࡿᐇ㦂࡛ࡣ㺘㺻㺞㺮ᒙࡢ௜╔ࡀ㑊ࡅࡽࢀࡎࠊࡑࡢᙳ㡪ࡶ⪃៖ࡍ࡭ࡁྍ⬟ᛶࡶ࠶ࡿࠋ
௒ᚋࡣࡇࢀࡽࡢⅬ࡟୍ᒙࡢὀពࢆྥࡅࡿ࡭ࡁ࡛࠶ࢁ࠺ࠋ

࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ᅜ㝿࣭ᅜෆ఍㆟㸼࣭Ṋ⸨ಇ௓㸪ᒣ⏣Ὀᕼ㸪኱ሯṇᘯ㸪㧗ᶫྍᫀ㸪ྜྷ㔝ᬕᙪ㸪Ᏻ㛫ఙ୍㸪STEM-CL ࡟ࡼࡿࢼࣀศ┦࢞ࣛࢫࡢᒁᡤᛂຊศᕸ ᐃࠖ᪥ᮏ㢧ᚤ㙾Ꮫ఍➨ 76 ᅇᏛ⾡ㅮ₇఍㸪኱㜰ᅜ㝿஺ὶࢭࣥࢱ࣮㸪2020 ᖺ 5 ᭶ 25㹼27㸦⣬ୖ㛤ദ㸧.
࣭ ᳃஭⿱௓㸪㧗ᶫྍᫀ ௚ 3 ྡ㸪Si/Cu ࣐࢖ࢡࣟせ⣲ࡢ⏺㠃๤㞳ࡁ⿣Ⓨ⏕ᙉᗘ๎㸫⏺㠃➃ᙧ≧ࡢᙳ㡪㸫㸪᪥ᮏᶵᲔᏛ఍ 2020 ᖺᗘᖺḟ኱఍㸪ྡྂᒇ኱Ꮫ㸪2020 ᖺ 9 ᭶ 13 ᪥
㹼16㸦web 㛤ദ㸧.

29ู⣬ᵝᘧ㸰㸫㸰Ỉ⣲྾ⶶྜ㔠ࢆ⏝࠸ࡓ࣓ࢱࣥ໬཯ᛂࡢ in-situ TEM࣭㉁㔞ศᯒ ᐃ
In-situ TEM-MS of methanation using hydrogen storage alloys୰ᕝ㕲Ỉ࣭⌰⌫኱࣭⌮࣭ຓᩍࠊᑠᯘ⌮Ẽ࣭⌰⌫኱࣭⌮࣭ຓᩍᅵᒱ▱ᘯ࣭⌰⌫኱࣭⌮࣭෸ᩍᤵࠊⰼ⏣ಙᏊ࣭᪩✄⏣኱࣭⌮ᕤ࣭ㅮᖌṊ⸨ಇ௓࣭ྡྂᒇ኱Ꮫ࣭IMaSS࣭ᩍᤵ㸯㸬◊✲┠ⓗ ᮏࢢ࣮ࣝࣉࡣỈ⣲྾ⶶྜ㔠ࢆ CO2࣭H2 ΰྜ࢞ࢫ୰࡛ຍ⇕ࡍࡿ࡜ࠊCO ࡸ CH4 ࡞࡝ࢆ⏕ᡂࡍࡿ཯ᛂࢆⓎぢࡋࡓࠋ⌧≧࡛ࡣ཯ᛂ⋡ࡀప࠸ࡓࡵࠊᛶ⬟ྥୖ࡟ྥࡅ࡚཯ᛂ࣓࢝ࢽࢬ࣒
ゎ᫂ࢆ┠ᣦࡋ࡚࠸ࡿࠋ⌧ᅾࡲ࡛ CO2 ࡟ࡼࡗ࡚ྜ㔠⾲㠃ࡀ㓟໬ࡉࢀࠊCO2 ㌿໬཯ᛂᚋ࡛ࡣ
Ỉ⣲࡟ࡼࡾ㑏ඖࡉࢀࡿࡇ࡜ࢆ᫂ࡽ࠿࡟ࡋ࡚࠸ࡿࠋᮏ◊✲࡛ࡣࠊྠ཯ᛂ᫬ࡢྜ㔠⾲㠃ࢆ
TEM ࡟ࡼࡾどぬⓗ࡟㏣࠸ࡘࡘᨺฟ࢞ࢫࢆྠ᫬ศᯒࡍࡿࡇ࡜࡛ࠊ཯ᛂ࣓࢝ࢽࢬ࣒ࢆᚤどⓗほⅬ࠿ࡽゎ᫂ࡍࡿࡇ࡜ࢆ┠ⓗ࡜ࡋ࡚࠸ࡿࠋ᫖ᖺᗘࡣ ZrMn2 ࡀ TEM ୰࡜ྠᵝࡢ⎔ቃ࡛࠶ࡿỈ⣲ᅽ 1 kPa ࡛άᛶ໬࣭Ỉ⣲྾ⶶ࡟ᡂຌࡋࡓࠋ
ࡋ࠿ࡋỈ⣲྾ⶶ㏿ᗘࡀ㐜࠿ࡗࡓࡓࡵࠊ
௒ᖺᗘࡣྜ㔠ࢆ෌㑅ᐃࡋࠊᐇ㝿࡟ TEM ୰࡛άᛶ໬࣭Ỉ⣲྾ⶶ࣭Ỉ⣲ᨺฟࢆほࡋࡓࠋ㸰㸬◊✲ෆᐜ࡜ᡂᯝ
㸰㸫㸯㸬ྜ㔠ࡢసᡂ㸸ZrMn2 ࡼࡾపᅽ࣭㧗㏿࡛Ỉ⣲྾ⶶࢆ⾜࡜⪃࠼ࡽࢀࡿ ZrMnV ࢆྜᡂࡋࡓࠋZr㸸Mn㸸V㸻1㸸1.1㸸1 ࡢࣔࣝẚ࡛ࣔࣀ࢔࣮ࢡ⅔ࢆ⏝࠸࡚⁐ゎࡋࠊ900 Υ࣭24᫬㛫┿✵୰࡛࢔ࢽ࣮ࣝฎ⌮ࢆ⾜ࡗࡓࠋᚓ㏆࠸⤌ᡂ࡛࠶ࡿࡇ࡜ࢆ☜ㄆࡋࡓࠋ㸰㸫㸰㸬ᐇ㦂ᐊ⣔࡛ࡢヨ㦂㸸ᚓࡽࢀࡓྜ
㔠ࢆᖹᆒ⢏ᚄ 1 mm ௨ୗ࡟⢊○ࡋࠊ㔠ᒓࢭࣝ࡟ᑒධࡋࡓࠋࡑࡢᚋ 300 Υ࣭Ỉ⣲ᅽ
1 kPa ࡛ 1 ᫬㛫άᛶ໬ࡋࠊᐊ

Ỉ⣲ᅽ㻌㻔㼎㼍㼞㻕ࡽࢀࡓྜ㔠ࡣ SEM-EDX ࠿ࡽ ZrMnV ࡟
㻝

㻜㻚㻝

ࡲ࡛㝆

ࡋࡓᚋ࡟Ỉ⣲ᅽ 1 kPa ࢆᑟධࡋࡓࠋࡑࡢ

㻜㻚㻜㻝ᚋᅽຊኚ໬ࢆ㏣࠺࡜ࠊZrMn2 ࡟ẚ࡭࡚Ỉ㻜㻚㻜 㻜㻚㻝 㻜㻚㻞 㻜㻚㻟 㻜㻚㻠 㻜㻚㻡 㻜㻚㻢 㻜㻚㻣 㻜㻚㻤 㻜㻚㻥Ỉ⣲྾ⶶ㔞㻌㻔㼙㼍㼟㼟㻑㻕⣲྾ⶶ㏿ᗘࡀඃࢀ࡚࠸ࡿࡇ࡜ࡀ᫂ࡽ࠿

ᅗ 1㸬ZrMnV ࡢ PCT ⥺ᅗ㸦Ỉ⣲྾ⶶ㸧ࠋ࡟࡞ࡗࡓࠋࡲࡓࠊỈ⣲ࢆᑟධࡏࡎ┿✵ୗ࡛άᛶ໬ฎ⌮ࢆ⾜ࡗࡓሙྜࡶྠᵝ࡟Ỉ⣲྾ⶶ཯ᛂࡀ㐍⾜ࡋࡓࡇ࡜࠿ࡽࠊZrMnV ࡣάᛶ໬ࡀᐜ࡛᫆࠶ࡾࠊTEM ୰࡛ࡶ༑ศάᛶ໬࡛ࡁࡿ࡜ุ᩿ࡋࡓࠋ᭦࡟ྛỈ⣲྾ⶶࡢᖹ⾮ᅽ࡟࠾ࡅࡿỈ⣲྾ⶶ㔞ࢆㄪ࡭ࡿ࡭ࡃࠊᅽຊ-⤌ᡂ-➼ 㸦PCT㸧⥺ᅗࢆᚓࡓࠋࡑࡢ⤖ᯝࠊZrMnVࡣᐊ࡛ࡣ 4 Ẽᅽ⛬ᗘࡲ࡛࡛ 0.9 ㉁㔞%ࡢỈ⣲ࢆ྾ⶶࡋࠊ1 kPa ࡢỈ⣲ᅽ࡛ࡣ༙ศ௨ୖࡢ

Ỉ⣲ࢆ྾ⶶࡍࡿࡇ࡜ࡀ᫂ࡽ࠿࡟࡞ࡗࡓ㸦ᅗ㸯㸧ࠋ30㸰㸫㸱㸬Ỉ⣲྾ⶶ࣭ᨺฟ཯ᛂࡢ TEM ほᐹ㸸సᡂࡋࡓ ZrMnV ࢆ⏝࠸࡚ TEM㸦཯ᛂ⛉Ꮫ㉸㧗ᅽ㉮ᰝ㏱㐣㟁Ꮚ㢧ᚤ㙾 JEM1000K RS㸧୰࡛άᛶ໬ࢆ⾜ࡗࡓࠋࡲࡎỈ⣲ 1 kPa Ẽὶ୰࡛ 400 Υ࣭1 ᫬㛫ಖᣢࡋࡓࠋᐊ

ࡲ࡛㝆ࡋࡓᚋ࡟⤌⧊ࢆほᐹࡍࡿ࡜ࠊỈ⣲໬࡟క࠺࢔

ࣔࣝࣇ࢓ࢫ໬ࡀ㐍⾜ࡋ࡚࠸ࡓࠋࡇࡢ⤖ᯝ࠿ࡽࠊZrMnV ࡣάᛶ໬୰࡟Ỉ⣲྾ⶶࢆ⾜࠺࡜⪃࠼ࡽࢀࡓࡓࡵࠊ┿✵୰࡛άᛶ໬ࢆヨࡳࠊࡑࡢᚋỈ⣲྾ⶶ࣭ᨺฟ཯ᛂࢆほᐹࡋࡓࠋᅗ 2㸬ZrMnV ࡢ(a)άᛶ໬๓ࠊ(b)άᛶ໬ᚋࠊ(c)Ỉ⣲ 1 kPa ⎔ቃୗࠊ(d)400 Υ࣭┿✵ಖᣢ࡟࠾ࡅࡿ TEM ⏬ീάᛶ໬๓ࡣ᱁Ꮚ⦤ࡀほ ࡉࢀࡿ࡯࡝኱ࡁ࡞⤖ᬗࡀ☜ㄆࡉࢀࡓ㸦ᅗ 2(a)㸧ࡀࠊάᛶ໬ฎ⌮
㸦400 Υ࡛┿✵ᘬࡁ 1 ᫬㛫㸧ᚋࡣ⾲㠃࡟ᚤ⣽⢏Ꮚࡢᯒฟࡀほࡉࢀࡓ㸦ᅗ 2(b)㸧
ࠋࡇࡢ⢏Ꮚࡣྜ㔠࡛࠶ࡿࡇ࡜ࡀ EELS ࠿ࡽ☜ㄆ࡛ࡁࡓࡓࡵࠊࡇࢀࡣྜ㔠⾲㠃ࡀάᛶ໬ฎ⌮࡛๤㞳ࡋࠊάᛶ࡞⾲㠃ࡀ㟢ฟࡋࡓ࡜⪃࠼ࡽࢀࡿࠋࡑࡢᚋỈ⣲ 1 kPa ࢆᑟධࡍࡿ࡜ࠊᚎࠎ࡟࢔
ࣔࣝࣇ࢓ࢫ໬ࡋࠊ㟁Ꮚᅇᢡ⥺࡛ࡶࣁ࣮ࣟࡀቑຍࡋࡓࠋ30 ศᚋ࡟ࡣ࡯ࡰ᏶඲࡟࢔ࣔࣝࣇ
࢓ࢫ໬ࡋࡓࡓࡵࠊỈ⣲྾ⶶࡀ༑ศ㐍⾜ࡋࡓ࡜⪃࠼ࡽࢀࡿ㸦ᅗ 2(c)㸧
ࠋࡇࢀࢆ෌ࡧ 400 Υ࣭┿✵୰࡛ຍ⇕ࡋࡓࡀࠊ30 ศ࡛ࡣ୍㒊ࢫ࣏ࢵࢺࡀᅇ᚟ࡋࡓࡶࡢࡢ࢔ࣔࣝࣇ࢓ࢫᡂศࡀṧᏑࡋ࡚࠸ࡓࡓࡵࠊỈ⣲ᨺฟ཯ᛂࡀ୙᏶඲࡛࠶ࡗࡓ࡜⪃࠼ࡽࢀࡿ㸦ᅗ 2(d)㸧
ࠋࡇࢀࡣࠊ㉁㔞ศᯒ࡛ࡶỈ⣲࢞ࢫࡢᨺฟࢆᤊ࠼ࡽࢀ࡞࠿ࡗࡓࡇ࡜࠿ࡽࡶ⿬௜ࡅࡽࢀࡿࠋEELS ࡛ࡶୖࠋάᛶ໬ᚋࡣάᛶ⾲㠃ࡢ㟢ฟ࡟క࠸ྛ㔠ᒓࡢࣆ࣮グࢆ⿬௜ࡅࡿ⤖ᯝࡀᚓࡽࢀࡓ㸦ᅗ 3㸧ࢡࡀప࢚ࢿࣝࢠ࣮ഃ࡬ࢩࣇࢺࡋࠊỈ⣲໬࡟ࡼࡗ࡚㧗࢚ࢿࣝࢠ࣮ഃ࡟ࢩࣇࢺࡋࡓࠋຍ⇕┿✵ᘬࡁ࡛ࡶప࢚ࢿࣝࢠ࣮࡬ࣆ࣮ࢡࡀࢩࣇࢺࡏࡎࠊỈ⣲ࡀṧᏑࡋ࡚࠸ࡿᵝᏊࡀほࡉࢀࡓࠋᅗ 3㸬ZrMnV ࡢ EELS ࢫ࣌ࢡࢺࣝ
௨ୖ࠿ࡽᮏ◊✲࡛ࡣࠊTEM ୰࡛ ZrMnV ࢆάᛶ໬࣭Ỉ⣲໬ࡋࠊࡑࡢᵝᏊࡢほ࡟ᡂຌࡋࡓࠋࡋ࠿ࡋỈ⣲ᨺฟ཯ᛂࢆ࡜ࡽ࠼ࡿࡇ࡜ࡀ࡛ࡁ࡞࠿ࡗࡓࡓࡵࠊCO2 ㌿໬཯ᛂࡢほᐹ࡟ࡣࠊࡼࡾỈ⣲ᨺฟ㏿ᗘࡀ㏿࠸᮲௳ࡲࡓࡣྜ㔠ࢆ᭱㐺໬ࡍࡿᚲせࡀ࠶ࡿࡇ࡜ࡀࢃ࠿ࡗࡓࠋ

31ู⣬ᵝᘧ㸰㸫㸰⮬ື㌴⏝ࣇ࢙ࣛ࢖ࢺ㗰࡟࠾ࡅࡿ⑂ປ㌿఩⤌⧊ࡢ㉸㧗ᅽ㟁Ꮚ㢧ᚤ㙾ほᐹHigh voltage electron microscopic observation of fatigue dislocation structuresin ferritic steel for automotive components⸨ᒃಇஅ࣭ᮾிᕤᴗ኱Ꮫ࣭≀㉁⌮ᕤᏛ㝔࣭ᩍᤵ୰㔝ᐶ㝯࣭ᮾிᕤᴗ኱Ꮫ࣭≀㉁⌮ᕤᏛ㝔 ᮦᩱ⣔ᮦᩱࢥ࣮ࢫ࣭኱Ꮫ㝔⏕㤳⸨ὒᚿ࣭ᮾிᕤᴗ኱Ꮫ࣭≀㉁⌮ᕤᏛ㝔 ᮦᩱ⣔ᮦᩱࢥ࣮ࢫ࣭኱Ꮫ㝔⏕ᐑ⃝▱Ꮥ࣭ᮾிᕤᴗ኱Ꮫ࣭≀㉁⌮ᕤᏛ㝔࣭ຓᩍⲨ஭㔜ຬ࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ࣭෸ᩍᤵ
Ṋ⸨ಇ௓࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ࣭ᩍᤵ㸯㸬◊✲┠ⓗ ⮬ື㌴ࡢ┬࢚ࢿࣝࢠ࣮໬ࡢ᪉⟇࡜ࡋ࡚㸪⇞㈝ྥୖࡢࡓࡵ࡟ྛ✀ᵓ㐀㒊ᮦ࡟⏝࠸ࡽࢀࡿ㗰ᯈࡢ㍍㔞໬ࡀ㐍ࡵࡽࢀ࡚࠸ࡿ㸬ࡑࡢ୰࡛ࡶ㊊ᅇࡾ㒊ᮦ࡛ࡣ㸪㔜㔞పῶࡢࡓࡵࡢⷧ⫗໬ࡀồࡵࡽࢀ࡚࠾ࡾ㸪ࡑࢀ࡜ྠ᫬
࡟㧗⑂ປᑑ࿨໬ࡀ㔜せ࡞ㄢ㢟࡜࡞ࡗ࡚࠸ࡿ㸬BCC ᵓ㐀ࡢࣇ࢙ࣛ࢖ࢺ㗰ࡢ⑂ປᑑ࿨ࡢྥୖࡢࡓࡵ࡟ࡣ㸪⑂ປ࡟ࡼࡗ࡚ᙧᡂࡉࢀࡿ㌿఩⤌⧊ࡢⓎ㐩ࡢ㐜⁫໬ࡀ᭷ຠ࡜ࡉࢀ㸪ᅛ⁐ඖ⣲ῧຍࡀ㌿఩⤌⧊Ⓨ㐩࡟ཬࡰࡍᙳ
㡪ࡀㄪ࡭ࡽࢀ࡚࠸ࡿ㸬ࡋ࠿ࡋ㸪BCC ᵓ㐀ࡢᮦᩱ࡟࠾ࡅࡿ⑂ປ࡟ࡼࡿ㌿఩⤌⧊ࡢᙧᡂ࣭Ⓨ㐩ᶵᵓ࡟ࡘ࠸࡚
ࡣ㸪FCC ᵓ㐀ࡢᮦᩱ࡟ẚ࡭࡚⣔⤫ⓗ࡞◊✲ࡀᑡ࡞ࡃ㸪ࡑࡢᶵᵓࡣᮍゎ᫂࡞Ⅼࡀከ࠸㸬ࡑࡇ࡛ᮏ◊✲࡛ࡣ㸪
BCC ᵓ㐀ࢆᣢࡘ Fe-Si ྜ㔠ࢆ⏝࠸㸪⑂ປヨ㦂࡟ࡼࡗ࡚ᙧᡂࡉࢀࡓ㌿఩⤌⧊ࢆほᐹࡋ㸪⤌⧊ᙧᡂ㐣⛬࡜άືࡍࡿࡍ࡭ࡾ⣔ࡢ㛵ಀࢆㄪᰝࡋࡓ㸬㸰㸬◊✲ෆᐜ࡜ᡂᯝ
 Fe-3 mass%Si ྜ㔠ከ⤖ᬗᮦࢆ౪ヨᮦ࡜ࡋ㸪ࢤ࣮ࢪయ✚ 5 mm4 mm9 mm ࡢࢻࢵࢢ࣮࣎ࣥᆺヨ㦂∦ࢆษࡾฟࡋࡓ㸬⑂ປヨ㦂ࡣᐊ኱Ẽᅽ୰࡛㸪඲ࡦࡎࡳ᣺ᖜࢆHt = 1.010-2 ࡟ไᚚࡋ࡚⧞ࡾ㏉ࡋᅇᩘ 30 ᅇࡲ࡛ᐇ᪋ࡋ㸪ヨ㦂∦ࡀ◚᩿ࡍࡿ๓࡟ヨ㦂ࢆ೵Ṇࡋࡓ㸬ࡑࡢᚋ㸪ヨ㦂∦ෆࡢ 1 ࡘࡢ⤖ᬗ⢏ࢆ㑅ᢥࡋ㸪FIB(Focusedion beam)ἲࢆ⏝࠸࡚ⷧ⭷ヨᩱࢆస〇ࡋࡓ㸬ⷧ⭷ヨᩱࡢ㌿఩⤌⧊ほᐹ࡟ࡣ཯ᛂ⛉Ꮫ㉸㧗ᅽ㉮ᰝ㏱㐣ᆺ㟁Ꮚ㢧ᚤ㙾(JEM-1000K RS)ࢆ౑⏝ࡋࡓ㸬ヨᩱࢆഴᩳࡋ㸪௵ពࡢᅇᢡἼࢆບ㉳ࡋࡓ STEM(Scanning transmission
electron microscope)࣮ࣔࢻ࡛ࡢ᫂ど㔝(Bright field, BF)ീࢆ᧜ᙳࡍࡿࡇ࡜࡛㸪g࣭b ࡟ࡼࡿ㌿఩ࡢࢥࣥࢺࣛ
ࢫࢺኚ໬࠿ࡽࣂ࣮࣮࢞ࢫ࣋ࢡࢺࣝࡢྠᐃࢆᐇ᪋ࡋࡓ㸬 Fig. 1 ࡟ HV-STEM ࡛᧜ᙳࡋࡓ㌿఩⤌⧊ࡢ BF-STEM ീࢆ♧ࡍ㸬ྠ୍ど㔝ࢆ✀ࠎࡢບ㉳࡛᧜ᙳࡋࡓീ࡛
࠶ࡿ㸬඲࡚ࡢ㌿఩ࡢࢥࣥࢺࣛࢫࢺࡀ෗ࡿ [101] zone ධᑕ࡛ࡢ Fig. 1(a)ࡢീࡼࡾ㸪(12 1) 㠃࡟ᖹ⾜࡞㌿఩ wall࡜ࡑࢀࡽࡀᔂࢀࡓ⤌⧊ࡀᙧᡂࡉࢀ࡚࠸ࡿࡇ࡜ࡀࢃ࠿ࡿ㸬 g 121 ࢆບ㉳ࡋࡓ Fig. 1(b)ࡢീ࡛ࡣ㸪channel ෆࡢ [11 1] ࡢ᪉ྥ࡟ఙ㛗ࡍࡿ㌿఩ࡢࢥࣥࢺࣛࢫࢺࡀᾘኻࡋ࡚࠸ࡓ㸬ࡲࡓ㸪㌿఩ wall ࡢ୍㒊ࢥࣥࢺࣛࢫࢺࡀᾘ
ኻࡋ㸪[111]᪉ྥ࡟ఙ㛗ࡍࡿ㌿఩ࡀ wall ࡢⰺࡢࡼ࠺࡟Ꮡᅾࡋ࡚࠸ࡿࡇ࡜ࡀࢃ࠿ࡿ㸬ࡇࢀ࡟ᑐࡋ㸪Fig. 1(c)
ࡢ g 12 1 ࢆບ㉳ࡋࡓീ࡛ࡣ㸪[111]᪉ྥ࡟ఙ㛗ࡍࡿ㌿఩ࡢࢥࣥࢺࣛࢫࢺࡀᾘኻࡋ࡚࠸ࡓ㸬ࡇࢀࡽࡢ⤖ᯝ࠿ࡽάືࡋ࡚࠸ࡓ㌿఩ࡢࣂ࣮࣮࢞ࢫ࣋ࢡࢺࣝࡣ㸪b1

a[11 1]
2

32

b2

a
[111]
2

࡜࡞ࡿ㸬ేࡏ࡚ࡇࢀࡽࡢࣂ࣮࣮࢞ࢫ࣋ࢡࢺࣝ࡜ᖹ⾜࡞㌿఩ࡣ࠸ࡎࢀࡶࡽࡏࢇ㌿఩࡛࠶ࡿࡇ࡜ࡀࢃ࠿ࡿ㸬ࡇࢀࡽࡽࡏࢇ㌿఩ࡣ┤⥺≧࡟ఙࡧ࡚࠸ࡿࡇ࡜࠿ࡽࡍ࡭ࡾ㠃ࡀほᐹ㠃࡟ᑐࡋ࡚ edge-on ࡛࠶ࡿ࡜௬ᐃࡍࡿ
࡜ b1 ࡢࡍ࡭ࡾ㠃ࡣ(121)㸪b2 ࡢࡍ࡭ࡾ㠃ࡣ (12 1) ࡜࡞ࡿ㸪Fig. 1(a)ࡢ㉥୸࡛ᅖࢇࡔ㒊ศ࡛ࡣ㸪 (12 1) ࡟ᖹ⾜࡞㌿఩ wall ࡢ୍㒊ࡀ(010)࠾ࡼࡧ(101)࡟ᖹ⾜࡞ 2 ࡘࡢ wall ࡟ኚ໬ࡋ࡚࠸ࡿᵝᏊࡀᤊ࠼ࡽࢀ࡚࠸ࡿ㸬ࡇࢀࡽࡢ㠃ἲ⥺᪉ྥࡣ b1 ࡜ b2 ࡢྜᡂ᪉ྥ[010]࡜[101]࡟ࡑࢀࡒࢀ➼ࡋ࠸ࡇ࡜࠿ࡽ㸪୺ࡍ࡭ࡾ⣔(121)[11 1] ࡜஧ḟࡍ࡭ࡾ⣔ (12 1) [111]ࡢከ㔜ࡍ࡭ࡾ࡟ࡼࡗ࡚ᙧᡂࡉࢀࡿ labyrinth ⤌⧊࡬ࡢⓎ㐩ࡢ㐣⛬ࢆᤊ࠼ࡿࡇ࡜ࡀ࡛ࡁ
ࡓ࡜࠸࠼ࡿ㸬

Fig. 1 ඲ࡦࡎࡳ᣺ᖜ 1.010-2 ࡟࠾ࡅࡿ㌿఩⤌⧊ࡢ BF-STEM ീ㸬ྠ୍ど㔝ࢆ(a) [101] zone ධᑕ㸪(b) g 121
࠾ࡼࡧ(c) g 12 1 ࡜ບ㉳᮲௳ࢆኚ໬ࡉࡏ࡚ほᐹࡋࡓ㸬࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ᅜ㝿࣭ᅜෆ఍㆟㸼࣭ H. Shuto, J. Tashiro, S. Arai, T. Miyazawa, and T. Fujii: Observation of dislocation walls during cyclic

deformation in an Fe-3 mass%Si alloy; The 19th International Conference on Textures of Materials (ICOTOM19), February 28 to March 4, 2021, Osaka Prefecture University, Sakai, Japan.
࣭ ୰㔝ᐶ㝯, 㤳⸨ὒᚿ, Ⲩ஭㔜ຬ, ᐑ⃝▱Ꮥ, ⸨ᒃಇஅ: Fe-3mass%Si ྜ㔠ࡢ⧞ࡾ㏉ࡋኚᙧ࡟క࠺⤖ᬗᅇ㌿㡿ᇦࡢᙧᡂ; ᪥ᮏ㔠ᒓᏛ఍ 2020 ᖺ⛅ᮇ(➨ 167 ᅇ)ㅮ₇኱఍, 2020 ᖺ 9 ᭶ 15 ᪥㹼18 ᪥ ࣏ࢫࢱ࣮Ⓨ⾲.

33ู⣬ᵝᘧ㸰㸫㸰㟁Ꮚ఩┦ᅇᢡ⣲Ꮚࡢホ౯
Evaluation of electron phase diffractive elementబ⸨ಇ୍࣭ᮾ໭኱Ꮫ࣭ከඖ≀㉁⛉Ꮫ◊✲ᡤ࣭ᩍᤵᑠ⃝♸ᕷ࣭ᮾ໭኱Ꮫ࣭ከඖ≀㉁⛉Ꮫ◊✲ᡤ࣭෸ᩍᤵୖᮡ♸㈗࣭ᮾ໭኱Ꮫ࣭ከඖ≀㉁⛉Ꮫ◊✲ᡤ࣭ຓᩍ⚟ᓥᾴኴ࣭ᮾ໭኱Ꮫ࣭኱Ꮫ㝔ᕤᏛ◊✲⛉࣭ಟኈㄢ⛬㰻⸨᫭࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ࣭ᩍᤵ㸯㸬◊✲┠ⓗ ࣮ࣞࢨ࣮ᖸ΅ຍᕤἲ࡟ࡼࡗ࡚ࠊ㟁Ꮚࡀ༑ศ࡟㏱㐣࡛ࡁࡿⷧ࠸⭷≧ᮦᩱࡢᚤ⣽ຍᕤᢏ⾡ࡢ㛤Ⓨࢆ㐍ࡵ࡚࠸ࡿࠋࡑࡢ᭱ࡶ㔜せ࡞ᛂ⏝ࡢࡦ࡜ࡘࡣࠊ㟁Ꮚ࡟ᑐࡍࡿ఩┦ᅇᢡ⣲Ꮚࡢస〇࡛࠶ࡿࠋᮏ◊✲࡛ࡣࠊస〇ࡋࡓ఩┦ᅇᢡ⣲Ꮚ࡟ᑐࡋ࡚㟁Ꮚ㢧ᚤ㙾ࢆ⏝࠸࡚㟁Ꮚࡢ↷ᑕ
࡜㏱㐣㟁Ꮚീࡢほᐹࢆ⾜࠸ࠊ㟁Ꮚᅇᢡ⣲Ꮚ࡜ࡋ࡚ࡢᶵ⬟࡜≉ᛶࢆ᫂ࡽ࠿࡟ࡍࡿࡇ࡜ࢆ┠ⓗ࡜ࡍࡿࠋ㸰㸬◊✲ෆᐜ࡜ᡂᯝ
ࡇࢀࡲ࡛࡟ᡃࠎࡣࠊཌࡉᩘ 10 nm ࡢᨭᣢᇶ┙ࡢ࡞࠸⮬❧ࡋࡓⷧ⭷ヨᩱ࡟ᑐࡋ࡚ࣇ࢙࣒
ࢺ⛊࣮ࣞࢨ࣮ࡢ 2 ග᮰ᖸ΅ຍᕤࢆ㐺⏝ࡋࠊⷧ⭷࡟ᦆയࢆ୚࠼ࡿࡇ࡜࡞ࡃ⢭ᐦ࡞ᅇᢡ᱁Ꮚࢆస〇ࡍࡿࠊ᪂ࡋ࠸ຍᕤᢏἲࡢᐇド࡟ྲྀࡾ⤌ࢇ࡛ࡁࡓࠋࡇࡢࡼ࠺࡞ᴟࡵ࡚ⷧ࠸⮬❧ࡋࡓⷧ⭷ࡢຍᕤࡣࠊ㞟᮰࢖࢜ࣥࣅ࣮࣒㸦FIB㸧࡛ࡣᐜ࡛᫆ࡣ࡞࠸ࡀࠊᮏ᪉ἲ࡛ࡣ 1 Ⓨࡢ࣮ࣞࢨ࣮ࣃࣝࢫࡔࡅ࡛ຍᕤࢆ⾜࠺ࡇ࡜ࡀ࡛ࡁࡿ≉ᚩࢆ᭷ࡋ࡚࠸ࡿࠋࡲࡓࠊ㟁Ꮚ⥺ࡀ༑ศ࡟㏱
㐣࡛ࡁࡿ࡯࡝࡟⭷ࡢཌࡉࡀⷧ࠸ࡓࡵࠊຍᕤࡋࡓⷧ⭷ࡣࡑࡢཌࡳ࡟ᛂࡌ࡚㟁Ꮚ⥺࡟఩┦ኚ໬ࢆཬࡰࡍࡇ࡜ࡢ࡛ࡁࡿ⣲Ꮚ࡜ࡋ࡚ᶵ⬟ࡍࡿࠋᮏᖺࡣࠊࡇࡢࣇ࢙࣒ࢺ⛊࣮ࣞࢨ࣮ගࡢᖸ΅࡟ࡼࡿⷧ⭷ຍᕤἲ࡟࠾࠸࡚ࠊࡼࡾⷧ࠸⭷ࢆࡼࡾ⢭ᐦ࡟ຍᕤࡍࡿࡇ࡜࡟ࡼࡿ㟁Ꮚ఩┦ᅇᢡ⣲Ꮚࡢᶵ⬟ྥୖࢆ┠ᣦࡋ࡚ࠊ୺࡟࣮ࣞࢨ࣮
ຍᕤ⣔ࡢᨵⰋ࡟ྲྀࡾ⤌ࢇࡔࠋࡲࡎࠊࡇࢀࡲ࡛ࡢ⎔ቃኚື࡟ᩄឤ࡞࣐ࢵࣁࢳ࢙ࣥࢲ࣮ᆺࡢ 2 ⭎ࡢᖸ΅ගᏛ⣔ࢆࠊࡼࡾᏳᐃ࡞ྠ㍈ᵓᡂࡢᖸ΅ගᏛ⣔࡟ᨵⰋࡋࡓࠋࡇࢀ࡟ࡼࡾࠊගᏛ⣔ࡢ࢔ࣛ࢖࣓ࣥࢺࡢ㢖ᗘࡀ኱ᖜ࡟పῶࡋࠊຍᕤᐇ㦂ࡢ᫬㛫ⓗຠ⋡࡜ຍᕤ⢭ᗘࡢᏳᐃᛶࡀ኱ࡁࡃྥୖࡋࡓࠋ
ࡲࡓࠊ࣮ࣞࢨ࣮ගࡢศᒱ࡟✵㛫ගኚㄪჾࢆ⏝࠸ࡿࡇ࡜࡛ࠊ2 ᮏ௨ୖࡢ」ᩘࣅ࣮࣒ࢆ⏝࠸ࡓከග᮰ᖸ΅ຍᕤࡢᐇ⌧࡟ᡂຌࡋࡓࠋࡇࢀ࡟ࡼࡾࠊࡇࢀࡲ࡛࡟⾜ࡗ࡚ࡁࡓ㸯ḟඖ᪉ྥࡢ࿘ᮇⓗ࡞」ࢫࣜࢵࢺຍᕤ࡟ຍ࠼࡚ࠊ2 ḟඖⓗ࡞࿘ᮇᵓ㐀ࢆ᭷ࡍࡿࢻࢵࢺ≧ࡢ✰࠶ࡅຍᕤࢆྍ⬟࡜ࡋࡓࠋ✰ࡢຍᕤ⢭ᗘ࡟ࡣᨵၿࡢవᆅࡀ࠶ࡿࡶࡢࡢࠊ౑⏝ࡋࡓ࣮ࣞࢨ࣮ගࡢἼ
㛗ࡢ༑ศࡢ୍⛬ᗘࡢ኱ࡁࡉࡢຍᕤ✰ࢆࢩࣥࢢࣝࢩࣙࢵࢺ࡛ຍᕤࡍࡿࡇ࡜࡟ᡂຌࡋࡓࠋ
௨ୖ㏙࡭ࡓࡼ࠺࡟ࠊᮏᖺᗘࡣࣇ࢙࣒ࢺ⛊࣮ࣞࢨ࣮ຍᕤἲ࡟࠾࠸࡚ࠊࡈࡃⷧ࠸ⷧ⭷ࡢຍᕤࢆࡼࡾ㧗⢭ᗘ࡛⾜࠺ࡇ࡜ࡢ࡛ࡁࡿᢏ⾡㛤Ⓨ࡟ᡂຌࡋࡓࠋࡇࡢᢏ⾡ࡣࠊ᪂ࡋ࠸ᶵ⬟ࢆᣢ34ࡘ㟁Ꮚ⥺ࡢ఩┦ᅇᢡ⣲Ꮚࡢస〇࡟኱ࡁࡃᐤ୚ࡍࡿ࡜⪃࠼ࡽࢀࠊࡑࢀࡽࡢ⣲Ꮚࡣ㟁ሙࡸ☢
ሙࢆ⏝࠸ࡓ㟁Ꮚࣞࣥࢬ࡟௦ࢃࡿ┬࢚ࢿࣝࢠ࣮㟁ᏊගᏛ⣲Ꮚ࡜ࡋ࡚ࡢᛂ⏝ࡀᮇᚅࡉࢀࡿࠋ

࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ཎⴭㄽᩥ㸼
࣭ Yuuki Uesugi, Ryota Fukushima, Yuichi Kozawa, and Shunichi Sato, Ultrafast laser ablationof 10-nm self-supporting membranes by two-beam interference processing, Optics Express,
28(18), 26200-26206, (2020. 8)
㸺ᅜෆ఍㆟࣭ᅜ㝿఍㆟㸼࣭ Yuuki Uesugi, Ryota Fukushima, Yuichi Kozawa, Shunichi Sato, Single-shot interference
processing of ultrathin plates by femtosecond laser, 21st International Symposium on Laser
Precision Microfabrication. Online, 2020 ᖺ 6 ᭶ 23 ᪥㹼26 ᪥ (Invited)࣭ ୖᮡ ♸㈗ࠊᑠ⃝ ♸ᕷࠊబ⸨ ಇ୍ࠊKapitza-Dirac ຠᯝ࡟ࡼࡿ㟁Ꮚࣞࣥࢬస⏝ࡢ᳨ウ,᪥ᮏ≀⌮Ꮫ఍ 2020 ᖺ⛅Ꮨ኱఍ࠊ࢜ࣥࣛ࢖ࣥࠊ2020 ᖺ 9 ᭶ 8 ᪥㹼11 ᪥࣭ ୖᮡ ♸㈗ࠊ⚟ᓥ ᾴኴࠊᑠ⃝ ♸ᕷࠊᩪ⸨ ᫭ࠊబ⸨ ಇ୍ࠊ㟁Ꮚ఩┦ᅇᢡ᱁Ꮚࡢࡓࡵ
ࡢⷧ⭷࣮ࣞࢨ࣮࢔ࣈ࣮ࣞࢩࣙࣥຍᕤࡢ㛤Ⓨ, ᪥ᮏ≀⌮Ꮫ఍ 2020 ᖺ⛅Ꮨ኱఍ࠊ࢜ࣥࣛ
࢖ࣥࠊ2020 ᖺ 9 ᭶ 8 ᪥㹼11 ᪥࣭ Yuuki Uesugi, Yuichi Kozawa, Shunichi Sato, Nanoprocessing of free-standing thin films by ultrafast laser ablation, Photonics West 2021, Online, 2021 ᖺ 3 ᭶ 6 ᪥㹼11 ᪥(Invited)35ู⣬ᵝᘧ㸰㸫㸰཰ᕪ⿵ṇ㟁Ꮚ㢧ᚤ㙾ࢆ⏝࠸ࡓ㔠ᒓࢼࣀ⢏Ꮚゐ፹ࡢ୕ḟඖィ ᡭἲࡢ㛤Ⓨ
Development of a three-dimensional measurement method of
metal nanoparticle catalysts using aberration-corrected TEMᒣ㷂 㡰࣭኱㜰኱Ꮫ࣭㉸㧗ᅽ㟁Ꮚ㢧ᚤ㙾ࢭࣥࢱ࣮࣭෸ᩍᤵࠊ
ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ࣭ᐈဨ෸ᩍᤵ
ྜྷ⏣೺ኴ࣭ᮾ໭኱Ꮫ࣭㔠ᒓᮦᩱ◊✲ᡤ࣭෸ᩍᤵ㰻⸨ ᫭࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ࣭ᩍᤵ  㸯㸬◊✲┠ⓗ ᮏ◊✲࡛ࡣࠊ⇞ᩱ㟁ụ㟁ᴟ㒊࡞࡝࡛㧗ᶵ⬟ゐ፹࡜ࡋ࡚ᶵ⬟ࡍࡿ㔠ᒓࢼࣀ⢏Ꮚࡢ୕ḟඖศᕸࢆ㟁Ꮚ㢧ᚤ㙾࡛ィ ࡍࡿ᪂ࡓ࡞ᡭἲ࡜ࡋ࡚ࠊ཰ᕪ⿵ṇ 7(0 ࡢ㧗ࡉศゎ⬟㸦㟁Ꮚ⥺㏱㐣᪉ྥ࡬ࡢศゎ⬟㸧ࢆά⏝ࡋࡓື⏬᧜ᙳ࡟ᇶ࡙ࡃィᡭἲࢆ㛤Ⓨࡍࡿࠋάᛶࡢ␗࡞ࡿⓑ㔠ࢼࣀ⢏Ꮚゐ፹ࡢィ ⤖ᯝࢆẚ㍑ࡋࠊ୕ḟඖᵓ㐀ࡢᕪ␗࡜άᛶ࡜ࡢ㛵㐃ࢆㄪ࡭ࡿࡇ࡜ࢆ
┠ⓗ࡜ࡍࡿࠋ

㸰㸬◊✲ෆᐜ࡜ᡂᯝ
ᮏ◊✲࡛㛤Ⓨࢆ┠ᣦࡍ୕ḟඖィ ἲ࡟ᚲ㡲࡞ᐇ㦂タഛࡣࠊ⤖ീ⣔཰ᕪ⿵ṇ⿦⨨ࢆഛ࠼
ࡓ㏱㐣㟁Ꮚ㢧ᚤ㙾㸦཰ᕪ⿵ṇ 7(0㸧࡛࠶ࡿࠋࡉࡽ࡟ࣞࣥࢬࡢࣇ࢛࣮࢝ࢫኚ᭦࡟క࠺వศ
࡞ࣞࣥࢬ཰ᕪࡢⓎ⏕ࢆ㑊ࡅࡿࡓࡵࠊ࣮ࣔ
ࢱ࣮㥑ື࡛ࡣ↓ࡃࣆ࢚ࢰ㥑ືࡢヨᩱ㧗ࡉኚ᭦ᶵᵓࢆ᭷ࡍࡿ⿦⨨ࡀᮃࡲࡋ࠸ࠋࡇࢀ
ࡽࢆഛ࠼ࡓᩘᑡ࡞࠸⿦⨨࡜ࡋ࡚ࠊྡ኱ᮍ
᮶◊ࡢ㰻⸨◊✲ᐊࡀᡤ᭷ࡍࡿ㟁Ꮚ㢧ᚤ㙾ࢆᐇ㦂࡟⏝࠸ࡓ◊✲ࢆ㐍ࡵ࡚࠸ࡿࠋᮏᖺ
ᗘࡣ᪂ᆺࢥࣟࢼ࢘࢖ࣝࢫឤᰁ⑕ࡢᙳ㡪࡛ྡྂᒇ኱Ꮫ࡬ࡢฟᙇࡀࡓࡧࡓࡧ୰Ṇ࡜࡞ࡾࠊ᪂ࡓ࡞ᐇ㦂ࢆ⾜࠺ࡇ࡜ࡣ࡛ࡁ࡞࠿ࡗ
ࡓࡀࠊ᫖ᖺᗘࡲ࡛࡟ྲྀᚓࡋࡓᐇ㦂ࢹ࣮ࢱࡢゎᯒ᪉ἲࢆᨵၿࡍࡿࡇ࡜࡛᪂ࡓ࡞ᡂᯝ
ࢆᚓࡿࡇ࡜ࡀ࡛ࡁࡓࠋ
᫖ᖺᗘࡲ࡛࡟㛤Ⓨࡋࡓ཰ᕪ⿵ṇ 7(0 ീࡢࣇ࢛࣮࢝ࢫࢩ࣮ࣜࢬ࠿ࡽࢼࣀ⢏Ꮚࡢ୕ḟඖศᕸࢆィ

ࡍࡿᡭἲ࡟࠾࠸࡚ࡣࠊ⤖ᬗ᱁Ꮚ⦤ࡢᾘኻࡍࡿࣇ࢛࣮࢝ࢫ఩⨨࡟ᇶਦ̏ फࠫึਜ਼ 7(0 ଀͹ϓΧʖΩηεϨʖθͶ͕͏ͱ֪ࢢࣸ‫ౕک‬͹‫ۅ‬ঘ஍͗ब‫غ‬దͶड़‫ͤݳ‬Ζ
໲ୌ͹մ݀ɽϓϪϋϩࣸ‫ک‬௒ϓΡϩνϨϱήॴཀྵͶΓͮͱɼਜ਼঱఼ͶଲԢͤΖ‫ۅ‬ঘҒ஖͗ਜ਼͚͢મ
พՆ೵ͳ͵ͮͪɽ

36࡙࠸࡚ࢼࣀ⢏Ꮚࡢ㧗ࡉᗙᶆࢆ᳨ฟࡍࡿࠋ」ᩘࡢ㠃㛫㝸ࡢ᱁Ꮚ⦤ࡀ⢏Ꮚ࡟⌧ࢀ࡚࠸ࡿሙྜ
ࡣࡇࡢ᪉ἲ࡛ࣘࢽ࣮ࢡ࡟㧗ࡉᗙᶆࢆỴᐃ࡛ࡁࡿࡀࠊ⢏Ꮚࡢྥࡁ࡟ࡼࡗ࡚ࡣ୍᪉ྥࡢ᱁Ꮚ
⦤ࡋ࠿⌧ࢀ࡞࠸ሙྜࡶከࡃࠊࡑࡢሙྜࡣ㧗ศゎ⬟ 7(0 ࡢ⤖ീ⌮ㄽ࡟ᇶ࡙ࡁ᱁Ꮚ⦤ࢥࣥࢺ
ࣛࢫࢺᴟᑠࡢࣇ࢛࣮࢝ࢫ఩⨨ࡀ࿘ᮇⓗ࡟ฟ⌧ࡋ࡚ࡋࡲ࠺ၥ㢟Ⅼࡀṧࡿࠋࡇࡢၥ㢟ࢆゎỴࡍࡿࡓࡵࠊࣇ࢛࣮࢝ࢫࡀࡎࢀ࡚࠸ࡿሙྜ࡟ࢼࣀ⢏Ꮚࡢ㍯㒌㒊ศ࡟⌧ࢀࡿࣇࣞࢿࣝ⦤ࢥࣥ
ࢺࣛࢫࢺࢆᙉㄪࡍࡿࣇ࢕ࣝࢱࣜࣥࢢฎ⌮ࢆ⪃᱌ࡋࠊṇ↔Ⅼ఩⨨࡜ᑐᛂࡍࡿ᱁Ꮚ⦤ࢥࣥࢺ
ࣛࢫࢺᴟᑠ᮲௳ࢆṇࡋࡃ㑅ู࡛ࡁࡿᡭἲࢆ㛤Ⓨࡋࡓ㸦ᅗ㸯㸧ࠋࡇࡢᨵⰋ࡟ᇶ࡙ࡁࠊ࣮࢝࣎ࣥ࡟ᢸᣢࡉࢀࡓⓑ㔠ࢼࣀ⢏Ꮚゐ፹ࡢ㸱ḟඖィ ࢆ⾜ࡗࡓ⤖ᯝࢆᅗ㸰࡟♧ࡍࠋ㟁Ꮚ⥺ධᑕ᪉ྥ࠾ࡼࡧ┤⾜ࡍࡿ᪉ྥࡢ୧᪉࠿ࡽぢ࡚࣮࢝࣎ࣥᢸᣢయෆ
㒊࡟఩⨨ࡋ࡚࠸ࡿ࡜ᛮࢃࢀࡿ⢏Ꮚࢆᅗ㸰࡟㉥࡛♧ࡋࡓࠋ࣮࢝࣎ࣥᢸᣢయ⾲㠃࡟㟢㢌ࡋ࡚࠸࡞࠸ࡇࢀࡽࡢ⢏Ꮚࡣᙜ↛࡞ࡀࡽゐ፹཯ᛂࢆ㉳ࡇࡍࡇ࡜ࡀ࡛ࡁ࡞࠸ࠋ⇞ᩱ㟁ụ㟁ᴟ࡜ࡋ࡚ࡢᛶ⬟࡟ᐤ୚ࡋ࡚࠸࡞࠸⢏Ꮚࡀ୍ᐃ๭ྜ࡛Ꮡᅾࡋ࡚࠸ࡿࡇ࡜ࢆ᫂☜࡟♧ࡍ⤖ᯝࢆᚓࡿࡇ࡜࡟ᡂຌࡋࡓࠋ
⌧᫬Ⅼ࡛ࡢၥ㢟Ⅼࡣࠊእ⦕㒊࡟఩⨨ࡍࡿ⢏Ꮚࢆ┠Ᏻ࡟࣮࢝࣎ࣥᢸᣢయࡢ
⾲㠃఩⨨ࢆ᥎ᐃࡋ࡚࠸ࡿⅬ࡛࠶ࡿࠋ⾲㠃఩⨨ࢆṇ☜࡟ࢺ࣮ࣞࢫࡍࡿ࡟ࡣ㟁㢧ീ࠿ࡽཌࡉศᕸࢆỴࡵࡿᚲせࡀ࠶ࡾࠊࡇࡢࡓࡵࡢྲྀࡾ⤌ࡳ࡜ࡋ࡚ྡྂᒇ
኱Ꮫ㉸㧗ᅽ㟁Ꮚ㢧ᚤ㙾ࢆ⏝࠸࡚෇⎔≧ᬯど㔝 67(0 ീᙉᗘࡢཌࡉኚ໬᭤⥺ࢆ⢭ᐦ࡟Ỵࡵࡿィ࡟ᡂຌࡋࡓࠋḟᖺᗘࡣ N9 㟁Ꮚ㢧ᚤ㙾ࢆ⏝࠸࡚ྠᵝࡢ ᐃࢆ⾜࠸ࠊࢼࣀ⢏Ꮚࡢࢧ࢖ࢬศᕸ
࠾ࡼࡧ୕ḟඖศᕸ㸦ᢸᣢయ⾲㠃࡛ࡢ⢏Ꮚᐦᗘ࣭⢏Ꮚ㛫㊥㞳ࠊᢸᣢయ⾲㠃ࡢพฝ࡜௜╔఩⨨ࡢ㛵ಀ࡞࡝㸧࡜ゐ፹άᛶਦ̐ ೫ྋుஓు‫ۅ‬෨Ͷ༽͏ΔΗΖΩʖϚϱ୴࣍പࡢ㛵㐃ࡢゎ᫂ࢆ┠ᣦࡍࠋۜψόཽࢢৰഖ͹ࢀ࣏‫݃ࡱ؏ݫ‬Վɽ੼Ͳཽࣖͪ͢ࢢͺΩʖϚϱ಼෨Ͷଚࡑ͢ͱ͏Ζɽ࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ᅜ㝿࣭ᅜෆ఍㆟㸼࣭ᒣ㷂㡰㸪すஂಖⱥ㑻㸪బࠎᮌᏹ࿴㸪Ⲩ஭㔜ຬ㸪ಖ⏣ⱥὒ㸪ࠕ㉸㧗ᅽ 67(0 ീᙉᗘࡢཌࡉ౫Ꮡᛶᐃ㔞ゎᯒࠖ᪥ᮏ㢧ᚤ㙾Ꮫ఍➨  ᅇᏛ⾡ㅮ₇఍㸪⣬ୖ㛤ദ㸪 ᖺ ᭶  ᪥ ᪥࣭ᒣ㷂㡰㸪ࠕ㟁Ꮚ㢧ᚤ㙾࡟ࡼࡿ࣑ࢡࣟࣥࢼࣀࢫࢣ࣮ࣝ㸱ḟඖィࡢ㐍ᒎࠖ㸪 ᖺ᪥ᮏ⾲㠃┿✵Ꮫ఍Ꮫ⾡ㅮ₇఍㸪࢜ࣥࣛ࢖ࣥ㛤ദ㸪 ᖺ  ᭶  ᪥ ᪥ᣍᚅㅮ₇࣭ᒣ㷂㡰㸪
ࠕ㟁Ꮚ⥺ࢺࣔࢢࣛࣇ࢕࣮࡟࠾ࡅࡿᙧ≧࡜ᐦᗘࡢᐃ㔞ⓗ෌ᵓᡂ࡜ࢲ࢖ࣞࢡࢺ࣭
ࢹ࢕ࢸࢡࢱ࣮ࢆ⏝࠸ࡓ㧗㏿໬ࠖ㸪᪥ᮏ㢧ᚤ㙾Ꮫ఍➨  ᅇࢩ࣏ࣥࢪ࣒࢘㸪࢜ࣥࣛ࢖ࣥ
㛤ദ㸪 ᖺ  ᭶  ᪥ ᪥ ᣍᚅㅮ₇37ู⣬ᵝᘧ㸰㸫㸰ࢼࣀᵓ㐀໬㔠ᒓ㔠ᒓ㓟໬≀」ྜᆺᮦᩱࡢᶵ⬟Ⓨ⌧
Photocatalysis of nanostructured metal/metal oxide composite materialsྜྷ⏣᭸Ꮚ࣭኱㜰ᕷ❧኱Ꮫ࣭ேᕤගྜᡂ◊✲ࢭࣥࢱ࣮࣭ᩍᤵ
㉥᯶ㄔே࣭኱㜰ᕷ❧኱Ꮫ࣭ᕤᏛ◊✲⛉࣭D3
Ლ⏣ಙ࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ࣭෸ᩍᤵ
㸯㸬◊✲┠ⓗ ㏆ᖺ㸪⎔ቃ୰ࡢởᰁ≀㉁ࢆศゎࡍࡿගゐ፹ࡀᵝࠎ࡞ศ㔝࡬ᛂ⏝ࡉࢀ࡚࠸ࡿ㸬㓟໬ࢱࣥࢢࢫࢸࣥ㸦WO3㸧ࡣྍどග↷ᑕୗ࡛ാࡃගゐ፹࡜ࡋ࡚ὀ┠ࡉࢀ࡚࠸ࡿࡀ㸪ẚ⾲㠃✚㸦1
m2/g㸧ࡀ௚ࡢගゐ፹࡟ẚ࡭࡚ᑠࡉࡃ㸪᭦࡟᭷ᶵ≀ศゎάᛶࡀప࠸࡜࠸࠺ၥ㢟Ⅼࡀ࠶ࡿ㸬ᮏ◊✲࡛ࡣ㸪W ᯈ࡟ He ࣉࣛࢬ࣐ࢆ↷ᑕࡋ࡚ᚓࡽࢀࡿᶞᯞ≧ࢼࣀᵓ㐀ࢆ㓟໬ࡉࡏ࡚㸪㧗⾲㠃✚࡛㓟໬㑏ඖຊࡢᙉ࠸ WO3 ගゐ፹ࢆస〇ࡍࡿࡇ࡜ࢆ⪃࠼ࡓ㸬ඛ⾜◊✲࡛ࡣ㸪ࡇࡢゐ፹⾲㠃࡟ࡣ W 㔠ᒓ࡜ WO3 ࡀΰᅾࡋ࡚࠸ࡿࡇ࡜ࡸᐇ㝿࡟ྍどගࢆ฼⏝ࡋࡓ᭷ᶵ≀ࡢศゎࡀ㐍⾜ࡍࡿࡇ࡜ࢆぢฟࡋ࡚࠸ࡿࡀ㸪ゐ፹ᶵ⬟ࢆⓎ⌧ࡍࡿάᛶࢧ࢖ࢺ࡟ࡘ࠸࡚ࡣᮍࡔ࡟
▱ぢࡀᚓࡽࢀ࡚࠸࡞࠸㸬ࡑࡇ࡛ᮏ◊✲࡛ࡣ㸪ᶞᯞ≧ࢱࣥࢢࢫࢸࣥࡢ⾲㠃㓟໬≧ែ࡜᭷ᶵ≀ศゎάᛶࡢ㛵ಀࢆㄪ࡭ࡿࡇ࡜࡟ࡼࡗ࡚㸪཯ᛂάᛶࢧ࢖ࢺࡸ཯ᛂ࣓࢝ࢽࢬ࣒ࢆ᫂ࡽ࠿࡟
ࡍࡿࡇ࡜ࢆ┠ⓗ࡜ࡋࡓ㸬㸰㸬◊✲ෆᐜ࡜ᡂᯝ ┤⥺ᆺࢲ࢖ࣂ࣮ࢱࣉࣛࢬ࣐ᶍᨃヨ㦂⿦⨨ NAGDIS-ϩࢆ⏝࠸࡚ He ࣉࣛࢬ࣐㸦He㸩㸧ࢆධᑕ࢚ࢿࣝࢠ࣮65㹼80 eV ࡛ W ᯈ⾲㠃࡟ 51025㹼2.51026 /m2 ↷ᑕࡋ㸪ᶞᯞ≧ࢼࣀᵓ㐀ࢆᙧᡂࡉࡏࡓ㸬↷ᑕ᫬ࡢヨᩱ⾲㠃 ᗘࡣ 1300㹼1700 K ࡛࠶ࡗࡓ㸬ࣉࣛࢬ࣐↷ᑕᚋࡢヨᩱࢆ኱Ẽ୰㓟໬ࡲࡓࡣຍ⇕ฎ⌮ࡋ㸪⾲㠃㓟໬๭ྜ 20㸣㸪35㸣㸪60㸣㸪100㸣ࡢ
ヨᩱࢆస〇ࡋࡓ㸬ࡇࢀࡽヨᩱ࡟ࡘ࠸࡚㸪ග↷ᑕୗ࡛ࡢ࣓ࢳࣞࣥࣈ࣮ࣝ㸦MB㸧⁐ᾮࡢศゎᐇ㦂࡟ࡼࡿගゐ፹άᛶホ౯ࢆ⾜ࡗࡓ㸬ࣜࣇ࢓ࣞࣥࢫ⏝▼ⱥ࢞ࣛࢫࢭࣝ࡜ࢧࣥࣉࣝ⏝▼ⱥ࢞ࣛࢫࡑࢀࡒ
ࢀ࡟⵨␃Ỉ㸦⣙ 2 ml㸧ࢆ࠸ࢀ㸪UV-vis ㏱㐣྾཰ࢫ࣌ࢡࢺࣝࡢࣂࢵࢡࢢࣛ࢘ࣥࢻࢆ

ᐃࡋࡓ㸬ḟ࡟㸪ࢧࣥࣉࣝ⏝▼ⱥ࢞ࣛࢫࡢ୰࡟ヨᩱࢆධࢀ㸪ࡑࡢୖ࠿ࡽ MB Ỉ⁐ᾮ㸦10 ȝmol/L㸧ࢆ 2 ml ධࢀࡓ㸬MB Ỉ⁐ᾮࢆධࢀࡓ 2 ศᚋ࡟㸪UV-vis ྾཰ࢫ࣌ࢡࢺࣝ ᐃࢆ⾜࠸㸪ග↷ᑕ᫬㛫 t = 0 ศࡢ࡜ࡁࡢࢹ࣮ࢱ࡜ࡋࡓ㸬t = 0 ศ࡛ࡢᐃᚋ㸪ᬯᐊ୰࡛ Xe ࣛࣥࣉࢆ⏝࠸

࡚ 4 ศ㛫ග↷ᑕࡍࡿᗘ࡟ UV-vis ࢫ࣌ࢡࢺࣝࡢ ᐃ㸦1 ศ㛫㸧ࢆ⾜࠸㸪ࡇࢀࢆග↷ᑕ᫬㛫t = 48 ศࡲ࡛⧞ࡾ㏉ࡋࡓ㸬ࡇࡢ࡜ࡁ㸪Xe ࣛࣥࣉ࡜ヨᩱࡢ㛫࡟࢝ࢵࢺࣇ࢕ࣝࢱ࣮ࢆ⨨ࡁ㸪
800 nm ௨ୖࡢἼ㛗ࢆࡶࡘගࡢࡳࡀヨᩱ࡟ᙜࡓࡿࡼ࠺࡟ࡋࡓ㸬ග྾ගࢫ࣌ࢡࢺࣝࡢ 664.5
nm ࡢ྾ගᗘࡀῶᑡࡋ࡚࠸ࡃᵝᏊࢆග↷ᑕ᫬㛫࡟ᑐࡋ࡚ࣉࣟࢵࢺࡋࡓ㸬38

Fig.1 ࡟㸪Xe ࣛࣥࣉ࡟࢝ࢵࢺࣇ࢕ࣝࢱ࣮ࢆ⏝࠸࡚ 800 nm ௨ୖࡢἼ㛗ࢆࡶࡘගࢆ↷ᑕࡋࡓ᫬ࡢ MB ศゎᐇ㦂ࡢ⤖ᯝࢆ♧ࡍ㸬඲࡚ࡢヨᩱࡀග↷ᑕ࡟ᛂ⟅ࡋ㸪ศゎ཯ᛂࢆಁ㐍ࡍࡿࡇ࡜ࡀศ࠿ࡗࡓ㸬ࡇࡇ࡛㸪⾲㠃㓟໬
100㸣ࡢヨᩱࡀάᛶࢆ♧ࡋࡓࡇ࡜࠿ࡽ㸪ᑡ࡞ࡃ࡜ࡶ WO3 ࡣάᛶࢧ࢖ࢺࡢ୍ࡘ࡜
ゝ࠼ࡿ㸬୍᪉㸪W(0)ࡢ๭ྜࡀከ࠸⾲㠃㓟໬ 20㸣ࡢヨᩱࡸ WO3 ࡢ๭ྜࡀከ࠸⾲㠃㓟໬ 100㸣ࡢヨᩱ࡟ẚ࡭࡚㸪⾲㠃㓟໬๭ྜࡀቑຍࡍࡿ࡯࡝཯ᛂ㏿ᗘࡀ኱ࡁࡃ
࡞ࡾ㸪⾲㠃㓟໬ 60㸣ࡢヨᩱࡀ᭱ࡶ཯ᛂ
㏿ᗘࡀ኱ࡁ࠿ࡗࡓ㸬ࡇࡢࡇ࡜࠿ࡽ㸪Fig.1 ⾲㠃㓟໬๭ྜࡢ␗࡞ࡿヨᩱ࡟

W(0)-WO3 ⏺㠃ࡀࡶ࠺୍ࡘࡢάᛶࢧ࢖

ࡼࡿ MB ศゎάᛶࡢẚ㍑

ࢺ࡛࠶ࡾ㸪WO3 ࡟ẚ࡭࡚㧗άᛶ࡛࠶ࡿ
࡜⪃࠼ࡓ㸬ࡲࡓ㸪WO3 ࡢࣂࣥࢻࢠࣕࢵࣉ 2.5eV ࡼࡾ࢚ࢿࣝࢠ࣮ࡢప࠸ගࢆ↷ᑕࡋࡓ࡟ࡶ࠿࠿ࢃ
ࡽࡎ཯ᛂࡀ㐍⾜ࡋࡓࡇ࡜࠿ࡽ㸪ࡇࢀࡽࡢヨᩱࡣ㸪௚ࡢ༙ᑟయගゐ፹ࡢࡼ࠺࡟ࣂࣥࢻ㛫ࡢ㟁Ꮚບ㉳࡟ࡼࡗ࡚཯ᛂࡀ㐍⾜ࡋ࡚࠸ࡿ࡜ࡣ⪃࠼㞴࠸㸬He㸩ࣉࣛࢬ࣐↷ᑕ࡟ࡼࡗ࡚ࢱࣥࢢ
ࢫࢸࣥ࡟ᶞᯞ≧ࢼࣀᵓ㐀ࡀᙧᡂࡍࡿ࡜㯮Ⰽ໬ࡋ㸪⣸እ㹼㏆㉥እගࢆ྾཰ࡍࡿࡇ࡜࠿ࡽ㸪ࢼࣀᵓ㐀໬ࡋࡓ W(0)ࢧ࢖ࢺࡀගࢆ྾཰ࡋ㸪⏕ࡌࡓບ㉳㟁Ꮚࡀ WO3 ࡢఏᑟᖏ࡟ὀධࡉࢀ
࡚ MB ศゎ཯ᛂࡀ㐍⾜ࡋࡓྍ⬟ᛶࡀᣲࡆࡽࢀࡿ㸬ࡇࡢບ㉳㟁Ꮚࡢ⛣ືࡣ W(0)-WO3 ⏺
㠃࡛ࡣຠ⋡ⓗ࡟㉳ࡇࡿࡓࡵ㸪MB ศゎ཯ᛂࡀ㏿ࡸ࠿࡟㉳ࡇࡿ࡜᥎ ࡋࡓ㸬࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸦SW ࢦࢩࢵࢡయ㸧㸺ཎⴭㄽᩥ㸼
࣭S. Feng, S. Kajita, T. Yoshida, N. Ohno, D. Nagata, M. Tokitani, Thin film and noble metalloading effects on the photocatalytic reactivity of helium-plasma-induced nanostructured
tungsten oxides, Mater. Res. Express, 7 (2020) 075007.
㸺ᅜ㝿࣭ᅜෆ఍㆟㸼࣭ྜྷ⏣᭸Ꮚ㸪⥲ㄽ࣭ࢣ࣮ࢫࢫࢱࢹ࢕㸦ᣍᚅㅮ₇㸧㸪㏆␥໬Ꮫ༠఍ ゐ፹࣭⾲㠃㒊఍ 2020 ᖺᗘࢼࣀᮦᩱࡢ⾲㠃ศᯒㅮ⩦㸪࢜ࣥࣛ࢖ࣥ㛤ദ㸪2020 ᖺ 11 ᭶ 20 ᪥࣭ྜྷ⏣᭸Ꮚ㸪ᒣᮏ᐀᫛㸪ຍ⸨⏤┿㸪⏣㎶ဴᮁ㸪ྍどගᛂ⟅ᆺ࢔ࢽ࢜ࣥගゐ፹ࡢ๰〇࡜ᨺᑕග࣭㟁Ꮚศග⼥ྜศᯒ㸦ᣍᚅㅮ₇㸧㸪➨㸶ᅇ」ྜ࢔ࢽ࢙࢜ࣥ࢘ࣈࢭ࣑ࢼ࣮㸪࢜ࣥࣛ࢖ࣥ㛤ദ㸪
2020 ᖺ 12 ᭶ 1 ᪥㸺⏘ᴗ㈈⏘ᶒ㸼࣭≉࡟࡞ࡋ39ู⣬ᵝᘧ㸰㸫㸰㧗㏿㧗ឤᗘࢲ࢖ࣞࢡࢺ㟁Ꮚ᳨ฟჾࡢ㛤Ⓨ
Development of high speed and sensitivity direct electron detector୕ዲᩄ႐࣭㧗࢚ࢿࣝࢠ࣮ຍ㏿ჾ◊✲ᶵᵓ࣭⣲⢏ᏊཎᏊ᰾◊✲ᡤ࣭◊✲ᶵ㛵ㅮᖌ಴▱㑳⏕࣭㧗࢚ࢿࣝࢠ࣮ຍ㏿ჾ◊✲ᶵᵓ࣭ඛ➃ຍ㏿ჾ᥎㐍㒊࣭≉ูᩍᤵ᪂஭ᗣኵ࣭㧗࢚ࢿࣝࢠ࣮ຍ㏿ჾ◊✲ᶵᵓ࣭⣲⢏ᏊཎᏊ᰾◊✲ᡤ࣭≉ูᩍᤵ◊✲᱓ཎ┿ே࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ࣭෸ᩍᤵ
▼⏣㧗ྐ࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ࣭ຓᩍ㸯㸬◊✲┠ⓗ Silicon-On-Insulator(SOI)ᢏ⾡ࢆࡶࡕ࠸ࡓ᳨ฟჾࡣࢭࣥࢧ࣮࡜ㄞࡳฟࡋᅇ㊰ࡀ୍య໬ࡉࢀ࡚࠾ࡾࠊࡉࡽ࡟ྛࣆࢡࢭࣝ࡟ᶵ⬟ࢆᣢࡓࡏࡿࡇ࡜ࡀྍ⬟࡞ࡓࡵࡇࢀࡲ࡛࡟࡞࠸㧗ᗘ࡞ᐃࡀ࡛ࡁࡿࠋSOI ᢏ⾡ࢆࡶࡕ࠸ࡓ᳨ฟჾ㸦SOI ࣆࢡࢭ᳨ࣝฟჾ㸧ࢆ㏱㐣ᆺ㟁Ꮚ㢧ᚤ㙾
㸦TEM㸧࡟ᛂ⏝ࡍࡿࡇ࡜࡟ࡼࡾ㧗ศゎ⬟࡛㧗㏿࡞࢖࣓࣮ࢪࣥࢢࡢᐇ⌧ࡀᮇᚅࡉࢀࡿࠋᮏ◊✲࡛ࡣࠊSOI ࣆࢡࢭ᳨ࣝฟჾࢆ࣮࣋ࢫ࡟㟁Ꮚ㢧ᚤ㙾࡟ࡼࡿ᫬㛫ศゎࢩࣥࢢࣝࢩࣙࢵࢺ࢖࣓
࣮ࢪࣥࢢࢆ┠ᣦࡋࡓ㧗㏿࠿ࡘ㧗ឤᗘ࡞ḟୡ௦ࢲ࢖ࣞࢡࢺ㟁Ꮚ᳨ฟჾࡢᐇドᶵࡢ㛤Ⓨ࡜ࡑࡢホ౯ࢆ┠ⓗ࡜ࡋࡓࠋ

㸰㸬◊✲ෆᐜ࡜ᡂᯝ 㧗㏿࠿ࡘ㧗ឤᗘ࡞ḟୡ௦ࢲ࢖ࣞࢡࢺ㟁Ꮚ᳨ฟჾࡢᐇドᶵࡢ㛤Ⓨ࡟ྥࡅ࡚ࠊࡑࡢ࣮࣋ࢫ࡜
࡞ࡿ SOI ࣆࢡࢭ᳨ࣝฟჾ࡛࠶ࡿ INPIX4 ࡢ㟁Ꮚ⥺ᛂ⟅ࢆホ౯ࡋࡓࠋINPIX4 ࢆྡྂᒇ኱Ꮫ࡟タ⨨ࡉࢀ࡚࠸ࡿ㏱㐣ᆺ㟁Ꮚ㢧ᚤ㙾ෆࡢ࣓࢝ࣛᐊ࡟ྲྀࡾ௜ࡅࠊ30keV ࡢ㟁Ꮚ⥺ࢆࢭࣥࢧ࣮
࡟↷ᑕࡋࡑࡢᛶ⬟ࢆホ౯ࡋࡓࠋ࢖࣓࣮ࢪࣥࢢࢭࣥࢧ࣮࡜ࡋ࡚ࡢᛶ⬟ࡣኚㄪఏ㐩㛵ᩘ㸦MTF㸧࡜㔞Ꮚ᳨ฟຠ⋡㸦DQE㸧ࢆᐃࡍࡿࡇ࡜࡛ồࡵࡓࠋᅗ 1 ࡟ INTPIX4 ࡢ 30keV 㟁Ꮚ⥺࡛ࡢ

MTF ࢆ♧ࡍࠋMTF ࡣࢭࣥࢧ࣮ࡢ༙ศࢆཌࡉ 100ȣm ࡢ Ta ࣉ࣮ࣞࢺ࡛そ࠸㟁Ꮚ⥺ࢆ୍ᵝ↷ᑕࡋ⥺ᣑࡀࡾ㛵ᩘࢆồࡵࡿࡇ࡜࡛⟬ฟࡋࡓࠋᅗ 1 ࡟♧ࡍࡼ࠺࡟ MTF ್ࡣࢼ࢖࢟ࢫࢺ࿘Ἴᩘࡀ 0.25pixel-1 ࡛~40%ࠊ
0.5pixel-1 ࡛~5%࡜࡞ࡾࠊ඲✵㛫࿘Ἴᩘࡢ᝟ሗࢆఏ㐩ࡍࡿࡇ࡜ࡀྍ⬟࡛࠶ࡿࡇ࡜ࡀࢃ࠿ࡗࡓࠋINTPIX4 ࡣ᪤Ꮡࡢ CCD࣓࢝ࣛ࡜ྠ➼࡞ MTF ࢆࡶࡘࡇ࡜ࡶࢃ࠿
ࡗࡓࠋࡲࡓ DQE ࡣ᳨ฟჾ㠃ୖ࡛ࡢ㟁ὶ
ᐦᗘࡀ 0.5 e-/pixel ௨ୗࡢᴟప⥺㔞࡟࠾
࠸࡚ࡶ 75㸣ࢆ㉸࠼ࡿࡇ࡜ࢆ☜ㄆࡋࡓࠋࡇࡢࡼ࠺࡟ SOI ࣆࢡࢭ᳨ࣝฟჾࡣ㧗ឤ ᅗ 1 30keV ࡛ࡢ INTPIX4 ࡢኚㄪఏ㐩㛵ᩘ40ᗘ࡞ࢲ࢖ࣞࢡࢺ㟁Ꮚ᳨ฟჾ࡜ࡋ࡚ᛂ⏝࡛ࡁࡿࡇ࡜ࡀࢃ࠿ࡗࡓࠋ
ࡲࡓࠊ௒ᚋࡢᐇ⏝໬ࢆぢᤣ࠼࡚ࠊࢧࣈ࣐࢖ࢡࣟ⛊࡛ࡢ᫬ศ๭

ᐃࡀ࡛ࡁࡿࡼ࠺࡟ࠊࣆࢡࢭ

ࣝࢧ࢖ࢬ 50 ࣑ࢡࣟࣥẖ࡟ 16 ಶࡢ࣓ࣔࣜࢆᦚ㍕ࡋࡓ SOI ࣆࢡࢭ᳨ࣝฟჾࡢࣉࣟࢺࢱ࢖ࣉࢆ
タィࡋࡓࠋࢭࣥࢧ࣮ࡣḟᖺᗘ᏶ᡂணᐃ࡛࠶ࡿࠋ
ᮏ◊✲࡛᥇⏝ࡋ࡚࠸ࡿ SOI-CMOS ᅇ㊰ࡣᚑ᮶㟁Ꮚ㢧ᚤ㙾࡟౑⏝ࡉࢀ࡚࠸ࡿ CCD ࡼࡾࡶ㥑ື㟁ᅽࡀపࡃࠊ࠿ࡘ㏻ᖖࡢࣂࣝࢡ CMOS ࡜ẚ࡭࡚┬ຊ໬ࡀぢ㎸ࡲࢀࡿᵓ㐀࡛࠶ࡿࡓࡵࠊᮏ
ࢩࢫࢸ࣒ࡣᚑ᮶࡜ẚ࡭࡚┬㟁ຊ᳨ฟჾࢩࢫࢸ࣒ࢆᙧᡂ࡛ࡁࡿぢ㏻ࡋࡀ࠶ࡿࠋ

࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ཎⴭㄽᩥ㸼
࣭ T. Ishida, A. Shinozaki, M. Kuwahara, T. Miyoshi, K. Saitoh, Y. Arai, Performance ofa silicon-on-insulator direct electron detector in a low-voltage transmission electron
microscope, Microscopy (in-press)㸺ᅜ㝿࣭ᅜෆ఍㆟㸼࣭ ▼⏣㧗ྐ㸪⠛ᓮᬦ㸪᱓ཎ┿ே㸪୕ዲᩄ႐㸪᪂஭ᗣኵ㸪㰻⸨᫭, SOI ࣆࢡࢭ᳨ࣝฟჾࢆ
ࡶࡕ࠸ࡓࢧࣈ࣐࢖ࢡࣟ⛊ ࢩࣥࢢࣝࢩࣙࢵࢺ࢖࣓࣮ࢪࣥࢢ, ᪥ᮏ㢧ᚤ㙾Ꮫ఍➨ 76 ᅇᏛ⾡ㅮ₇఍, ⣬㠃ୖ㛤ദ㸪2020/5/12-5/27.
㸺⏘ᴗ㈈⏘ᶒ㸼࣭࡞ࡋ

41ู⣬ᵝᘧ㸰㸫㸰◳ϱ⥺ග㟁Ꮚศගࢆ⏝࠸ࡓࢫࣆࣥࢺࣟࢽࢡࢫᮦᩱࡢᇙࡶࢀࡓ⏺㠃࡟࠾ࡅࡿ☢໬ศᕸィ ᢏ⾡㛤Ⓨ
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ศග࣭࢖࣓࣮ࢪࣥࢢ᥎㐍ᐊ࣭◊✲ဨụỌⱥྖ࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ㝃ᒓ 㧗ᗘィ ᢏ⾡ᐇ㊶ࢭࣥࢱ࣮࣭෸ᩍᤵ
㸯㸬◊✲┠ⓗࢫࣆࣥࢺࣟࢽࢡࢫᮦᩱࢆ⏝࠸ࡓḟୡ௦ࢹࣂ࢖ࢫࡣ㠉᪂ⓗ࡞┬࢚ࢿࣝࢠ࣮໬ࡢྍ⬟ᛶࢆ⛎ࡵ࡚࠸ࡿࠋ౛࠼ࡤࠊ⌧ᅾ౑⏝ࡉࢀ࡚࠸ࡿㄽ⌮㞟✚ᅇ㊰୰ࡢ࣓ࣔࣜࡣࠊࢹ࣮ࢱࢆಖᣢ
ࡍࡿࡓࡵ࡟ᖖ᫬㟁Ẽ౪⤥ࡀᚲせ࡛࠶ࡿࡀࠊࢫࣆࣥࢺࣟࢽࢡࢫ࣓࡛ࣔࣜࡣࠊ㟁Ꮚࢫࣆࣥ࡟
ࢹ࣮ࢱࢆಖᣢࡉࡏࡿࡓࡵࠊᚅᶵ㟁ຊࢆᚲせ࡜ࡋ࡞࠸ࠋࡋࡓࡀࡗ࡚ࠊࢫࣆࣥࢺࣟࢽࢡࢫ࣓
ࣔࣜ࡟⨨ࡁ᥮ࢃࢀࡤࠊᚅᶵ㟁ຊࡢ኱ᖜ࡞๐ῶ࡟ࡘ࡞ࡀࡿࠋ
ࡑࡢࢫࣆࣥࢺࣟࢽࢡࢫᮦᩱࡢ☢Ẽ≉ᛶࢆᨭ㓄ࡍࡿࡢࡣ☢ᛶᒙ㏆ഐࡢ☢Ẽ࣮࣓ࣔࣥࢺ
࡛࠶ࡿࡀࠊ⌧≧ࡑࡢ⌮ゎࡣ༑ศ࡛࡞࠸ࠋࡇࢀࡣࠊᇙࡶࢀࡓ㟁Ꮚ࣭☢Ẽ≧ែࢆゎᯒ࡛ࡁࡿᐇ㦂ᡭἲࡀ☜❧ࡉࢀ࡚࠸࡞࠸ࡇ࡜ࡀ୺せᅉ࡛࠶ࡿࠋࡇࢀࢆゎỴࡍࡿᡭἲࡢ  ࡘࡀࠊ㧗㍤
ᗘᨺᑕගࢆ฼⏝ࡋࡓ◳ ; ⥺ග㟁Ꮚศග +$UG;UD\3KRWR(OHFWURQ6SHFWURVFRS\+$;3(6ࡢ☢Ẽ෇஧Ⰽᛶィ

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⏝࠸ࡽࢀ࡚࠸ࡿ㌾ ; ⥺྾཰ 0&' ィ࡟ẚ࡭ࠊ᳨ฟ῝ࡉࡀ  ᱆኱ࡁ࠸⣙ QP ࡛࠶ࡿࡇ࡜࡛࠶ࡿ>@ࠋࡘࡲࡾࠊ0&'+$;3(6 ィࢆ⏝࠸ࡿ࡜ࠊ㌾ ; ⥺྾཰ 0&' ィ࡛ࡣᅔ㞴࡞ᇙࡶࢀࡓ⏺㠃ࡢ☢ᛶࢆㄪ࡭ࡿࡇ࡜ࡀྍ⬟࡛࠶ࡾ>@ࠊᐇࢹࣂ࢖ࢫᵓᡂ࡟㏆࠸ᮦᩱࢆゎᯒ࡛ࡁࡿࠋࡉࡽ࡟ࠊ໬Ꮫࢩࣇࢺࡸ౯ᩘ≧ែࡢ᳨ฟ࡟ᩄឤ࡛࠶ࡾࠊ໬Ꮫ⤖ྜ≧ែ࡜☢ᛶࢆ஫࠸࡟㛵㐃௜ࡅࡓゎᯒࡀྍ⬟࡛࠶ࡿ࡜࠸࠺≉ᚩࡶ᭷ࡍࡿࠋ
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☢ᛶⷧ⭷ヨᩱ࡟㝈ᐃࡉࢀ࡚࠸ࡿࠋࡇࡢࡼ࠺࡞ヨᩱ࡛ࡣヨᩱ௜㏆࠿ࡽⓎ⏕ࡍࡿ₃ὤ☢ሙࡀᑠࡉ࠸ࡓࡵ࡛࠶ࡿࠋࡋࡓࡀࡗ࡚ࠊእ㒊☢ሙࢆ༳ຍࡋࡓ≧ែ࡛ࡢ 0&'+$;3(6 ィࡣࡇࢀࡲ࡛ᐇ⌧ࡉࢀ࡚࠸࡞࠿ࡗࡓࠋࡇࢀ࡟ᑐࡋᡃࠎࡣ +$;3(6 ࡢ㧗࠸ග㟁Ꮚ㐠ື࢚ࢿࣝࢠ
࣮࡛☢ሙࡢᙳ㡪ࡀᑠࡉࡃ࡞ࡿࡇ࡜ࢆ฼⏝ࡋࠊࡉࡽ࡟ヨᩱ࿘㎶ࡢ₃ὤ☢ሙࢆᴟຊపῶࡍࡿ
ࡇ࡜࡛☢ሙ༳ຍୗィࡀྍ⬟࡞ࡿ࡜⪃࠼ࡓࠋ᫖ᖺࡲ࡛࡟ࠊࢿ࢜ࢪ࣒☢▼ࢆ⏝࠸ࡓ  7ᅛᐃ☢ሙୗ࡛ࡢィ࡟ᡂຌࡋࡓࡀࠊࢫࣆࣥࢺࣟࢽࢡࢫᮦᩱࡢゎᯒ࡛ࡣࣄࢫࢸࣜࢩࢫ᮲௳

ୗ࡛ࡢィࡀᚲ㡲࡛࠶ࡾࠊྍኚ☢ሙୗ࡛ࡢィᢏ⾡ࡢ☜❧ࡀᚲせ࡛࠶ࡗࡓࠋ

㸰㸬◊✲ෆᐜ࡜ᡂᯝ
௒ᖺᗘࡣࠊࢿ࢜ࢪ࣒☢▼ࢆ⏝࠸࡞ࡀࡽࡶヨᩱ࡬ࡢ༳ຍ☢ሙࢆྍኚ࡟ࡍࡿᶵᵓ㛤Ⓨࢆ⾜42ࡗࡓࠋࡑࡢᶵᵓࡢᴫᛕᅗࢆᅗ  D ࡟♧ࡍࠋ☢ᴟ୰ᚰ㒊࡛᭱ࡶ☢ሙࡀ኱ࡁࡃࠊ☢ᴟ࠿ࡽୖ᪉࡟㞳ࢀࡿ࡟ࡘࢀ☢ሙࡀῶᑡࡍࡿࠋࡋࡓࡀࡗ࡚ࠊ☢ᴟ࡜┤஺᪉ྥ࡛ヨᩱ఩⨨ࢆ⛣ືࡍࡿࡇ࡜࡛ヨᩱ࡟༳ຍࡉࢀࡿ☢ሙᙉᗘࢆྍኚ࡟ࡍࡿࡇ࡜ࢆ⪃࠼ࡓࠋ〇సࡋࡓ☢ሙ༳ຍࢩࢫࢸ࣒ࢆᅗ  E ࡟♧ࡍࠋ☢ᴟࡢ➃࡟ヨᩱࢆ㓄⨨ࡋࡓ㝿࡟ヨᩱ㠃ෆ᪉ྥ࡟  7 ࡢ☢ሙࡀ༳ຍࡉࢀࡿタィ࡛࠶ࡿࠋᮏࢩࢫࢸ࣒ࡣࠊ63ULQJ %/;8 ࡢ +$;3(6 ィ࡛㏻ᖖ⏝࠸ࡽࢀ

࡚࠸ࡿヨᩱ࣍ࣝࢲ࣮࡟ᦚ㍕ྍ⬟࡞㠀ᖖ࡟ࢥࣥࣃࢡࢺ࡞ࡶࡢ࡛࠶ࡿࠋࡑࡢࡓࡵࠊᮏࢩࢫࢸ
࣒࠾ࡼࡧヨᩱࡣ㏻ᖖヨᩱ࡜ྠᵝ࡟┿✵୰࡛ヨᩱࢺࣛࣥࣇ࢓࣮࡛ࡁࠊヨᩱ஺᥮ࢆᐜ᫆࡟⾜࠺ࡇ࡜ࡀྍ⬟࡛࠶ࡿࠋ
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+$;3(6 ࡟ᑐࡋࠊඖ⣲྾཰➃㏆ഐ࡛࢚ࢿࣝࢠ࣮ࢆᤲᘬࡋ࡞ࡀࡽ +$;3(6 ィࢆ⾜࠺ࡇ࡜࡛ࠊඖ⣲㑅ᢥᛶࡸ㌶㐨㑅ᢥᛶࢆࡼࡾᙉ໬ࡋࡓ +$;3(6 ゎᯒࢆᐇ⌧ࡍࡿࡶࡢ࡛࠶ࡿࠋ
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௒ᚋࡶᮏ㛤Ⓨࢆ⥅⥆ࡋࠊᐇࢹࣂ࢖ࢫ࡬ࡢᛂ⏝ᐇ⌧࡟ᚲせ࡞せ⣲ᢏ⾡ࢆ☜❧ࡍࡿࡇ࡜࡛
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ᮏࢩࢫࢸ࣒ࡣ SPring-8 BL09XU ࡢ HAXPES ヨᩱ࣍ࣝࢲ࣮࡟࣐࢘ࣥࢺྍ⬟࡛࠶ࡿࠋ43ู⣬ᵝᘧ㸰㸫㸰◳ ; ⥺ゅᗘศゎග㟁Ꮚศගࢆ⏝࠸ࡓከᒙ✚ᒙⷧ⭷ᮦᩱ⏺㠃࡟࠾ࡅࡿ
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ᶓᒣ࿴ྖ࣭රᗜ┴❧኱Ꮫ⏘Ꮫ㐃ᦠ࣭◊✲᥎㐍ᶵᵓ࣭ᨺᑕගࢼࣀࢸࢡࢭࣥࢱ࣮࣭ࢭࣥࢱ࣮㛗  ụỌⱥྖ࣭ྡྂᒇ኱Ꮫᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ࣭㝃ᒓ㧗ᗘィ ᢏ⾡ᐇ㊶ࢭࣥࢱ࣮࣭෸ᩍᤵ
㸯㸬◊✲┠ⓗ ⏦ㄳ⪅ࡣࠊࡇࢀࡲ࡛࡟ X ⥺ゅᗘศゎග㟁Ꮚศග(ARPES)ࢆ⏝࠸ࡓ῝ࡉ᪉ྥศᕸゎᯒᡭἲࡢ㛤Ⓨࢆ⥅⥆ⓗ࡟㐍ࡵ࡚࠸ࡿ[1-3]ࠋ㛗ᖺᇵࡗ࡚ࡁࡓ㌾ X ⥺ࢆ⏝࠸ࡓ ARPES ࡛ࡢゎᯒᢏ⾡࡛ࡣࠊග㟁Ꮚࡢ⬺ฟ῝ࡉࡀᩘ nm ⛬ᗘ࡟ไ㝈ࡉࢀࡿࡓࡵࠊⷧ⭷⾲㠃㏆ഐࡢ໬Ꮫ≧ែゎᯒ࡟␃ࡲࡗ࡚࠸ࡓࠋࡑࡇ࡛ࠊ᫖ᖺᗘࡲ࡛ࡢྲྀࡾ⤌ࡳ࡟࡚ࠊග࢚ࢿࣝࢠ࣮⠊ᅖࡢୖ㝈ࢆ 100 keV ࡲ࡛ᣑᙇࡋࠊග࢚ࢿࣝࢠ࣮ศゎ࡜ゅᗘศゎࡀඹᏑࡋࡓゎᯒࢆྍ⬟࡟ࡍࡿࡼ࠺ᨵⰋࡋࡓࠋࡲࡓࠊィࢹ࣮ࢱ࡟ྵࡲࢀࡿඖ⣲࡜㟁Ꮚ㌶㐨ࡢᩥᏐิ࠿ࡽࠊ࢖࢜ࣥ໬᩿

㠃✚࣭⬺ฟ῝ࡉ࡞࡝ࡢゎᯒࣃ࣓࣮ࣛࢱࢆ⮬ືᢳฟࡍࡿࣉࣟࢢ࣒ࣛࡶసᡂࡋࡓࠋࡇࢀࡽ࡟
ࡼࡾࠊࣂࣝࢡᩄឤィࢆྍ⬟࡟ࡍࡿ◳ X ⥺ ARPES ࡬ࡢ⮬↛࡞ᣑᙇࢆᐇ⌧ࡋࠊ⾲㠃࡜ࣂࣝࢡࡢ≧ែࢆేࡏࡓ῝ࡉ᪉ྥศᕸゎᯒࡀ࡛ࡁࡿࡼ࠺࡟࡞ࡗࡓࠋࡉࡽ࡟ࠊᩘ GB ࢡࣛࢫࡢ᫬✵㛫ศ๭ࢫ࣌ࢡࢺࣝࢹ࣮ࢱࢆ⡆౽࡟ྲྀࡾᢅ࠼ࡿࡼ࠺࡟ࡍࡿࡓࡵࠊ㧗㏿ࣆ࣮ࢡࣇ࢕ࢵ
ࢸ࢕ࣥࢢ࡜ከᒙ⭷⏺㠃῝ࡉ᪉ྥศᕸࡢ᫬⣔ิゎᯒ࡟㛵ࡋ࡚ࠊ༢⣧࡞᧯స࡛⾜࠼ࡿࢢࣛࣇ
࢕࣮࢝ࣝࣘࢨ࣮࢖ࣥࢱ࣮ࣇ࢙࣮ࢫࢆ㛤Ⓨࡋࡓࠋࡇࢀࡽࡣࠊ↹㞧࡞ゎᯒᡭ㡰ࢆ኱ᖜ࡟▷⦰ࡋࠊᶵᲔᏛ⩦ࢆ฼⏝ࡋࡓ⮬ືゎᯒ࡬ࡢ㊊ࡀ࠿ࡾ࡟ࡶ࡞ࡗࡓ[4]ࠋ≀㉁⏺㠃ࡢ”ືែ”ࢆほᐹࡍࡿ᪂ᢏ⾡ࡢ๰ฟࡶど㔝࡟ධࡾࡘࡘ࠶ࡿࠋᮏᖺᗘࡣࠊከᒙ✚ᒙⷧ⭷⏺㠃࡟࠾ࡅࡿ῝ࡉ᪉ྥศᕸࡢ᫬⣔ิኚ໬ࢆṇ☜࠿ࡘ㧗⢭ᗘ࡟ᤊ࠼ࡿᢏ⾡࡟Ⓨᒎࡉࡏࠊ୙ᆒ୍ᮦᩱࡢ཯ᛂ⣔࡬ᣑᙇࡢ㐩ᡂࢆ⾜࠺ࡓࡵ࡟ࠊࡇࢀࡲ࡛ྍ⬟࡜ࡋࡓᩘ GB ࢡࣛࢫࡢࢹ࣮ࢱ࠿ࡽᩘ 10GB ࢡࣛࢫ࡬ࡢࢫࢣ࣮ࣝ࢔ࢵࣉࢆ⾜࠸ࠊ࣐ࣝࢳࢥ࢔ CPU ά⏝ࡢ࣐ࣝࢳࢫࣞࢵࢻゎᯒࢆᐇ⌧ࡋࡓࠋࡲࡎࡣࠊ100 ୓ᮏࡢࢫ࣌ࢡࢺࣝࠊ100 ୓ศᕸࡢ῝ࡉ᪉ྥゎᯒ࡛ᐇドࢆ⾜ࡗࡓࠋ
[1] S. Toyoda et al., Surf. Interface Anal. 40, 1619 (2008). [2] K. Horiba, Y. Nakamura,
N. Nagamura, ST et al., Rev. Sci. Instrum 82, 113701 (2011). [3] S. Toyoda et al., J.
Appl. Phys. 120, 085306 (2016). [4] ㇏⏣௚ࠊ➨ 25 ᅇࢹࣂ࢖ࢫ⏺㠃ࢸࢡࣀࣟࢪ࣮◊✲఍(2020 ᖺ 1 ᭶)ࠋ㸰㸬◊✲ෆᐜ࡜ᡂᯝ
 ᅗ 1 ࡟ 100 ୓ᮏࡢࣆ࣮ࢡࣇ࢕ࢵࢸ࢕ࣥࢢゎᯒࠊᅗ 2 ࡟ 100 ୓ศᕸࡢ῝ࡉ᪉ྥゎᯒࢆ

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46㸰㸬◊✲ෆᐜ࡜ᡂᯝ
ᮏ◊✲࡛ࡣࠊཎᏊ᰾஝ᯈࢆ⏝࠸ࡓ࣮࣎ࣜࣥࢢᏍᤄධᆺࡢᏱᐂ⥺࣑࣮ࣗ࢜ࣥ࢖࣓࣮ࢪࣥ
ࢢࡢᇶ┙ᢏ⾡ࡢ㛤Ⓨࢆ⾜ࡗࡓࠋᏱᐂ⥺ࡣࠊ㉸᪂ᫍ⇿Ⓨ࡞࡝ࡢᏱᐂࡢ㧗࢚ࢿࣝࢠ࣮⌧㇟㉳ᅉࡢᨺᑕ⥺࡛࠶ࡾࠊࡑࡢ኱༙
ࢆ༨ࡵࡿ࣑࣮ࣗ࢜ࣥ࡜࿧ࡪ⣲⢏Ꮚࡀᖖ࡟ᆅ⾲㠃࡟㝆ࡾὀ࠸࡛࠸ࡿࠋཎᏊ᰾஝ᯈࢆ⏝࠸ࡿ஦࡛࣑࣮ࣗ࢜ࣥࡢ㌶㊧ࢆࢧࣈ࣑ࢡࣟࣥࡢ⢭ᗘ࡛୕ḟඖⓗ࡟グ㘓ࡍࡿࠋཎᏊ᰾஝ᯈࡣ㖟ሷ෗┿ࣇ࢕࣒ࣝ࡟ࡼࡿග᳨ฟ࡜ྠᵝࡢཎ⌮࡛ᨺᑕ⥺ࢆグ㘓ࡍࡿࡓࡵ㟁ຊࢆᚲせ࡜ࡋ࡞࠸ࠋ
ࡲࡓࠊཎᏊ᰾஝ᯈࡢᙧ≧ࡣᐜ᫆࠿ࡘ⮬⏤࡟ຍᕤ࡛ࡁࡿࠋཎᏊ᰾஝ᯈ࡟⏝࠸ࡿ⮯໬㖟⤖ᬗࡢ኱ࡁࡉࡣ 200 nm ࡛࠶ࡿࡓࡵࠊࡑࡢ㧗࠸✵㛫ศゎ⬟࡟ࡼࡾ 1 mm ௨ୗࡢཌࡉ࡛ᩘ࣑ࣜ
ࣛࢪ࢔ࣥ㸦1 ੊ඛࢆᩘ m ࡢ⢭ᗘ࡛Ỵᐃ㸧ࡢ᪉ྥỴᐃ⢭ᗘࡀᚓࡽࢀࡿࠋࡇࢀࡽࡢ≉ᚩࢆ⏕࠿ࡍ஦࡛ࠊ࣮࣎ࣜࣥࢢ᥀๐Ꮝࡢࡼ࠺࡞ᴟࡵ࡚⊃࠸✵㛫ෆ࡛༑ศ࡞࢖࣓࣮ࢪࣥࢢᛶ⬟ࢆ᭷ࡍࡿ᳨ฟჾࡢᐇ⌧ࡀྍ⬟࡛࠶ࡿࠋᮏ◊✲࡛ࡣࠊᡭືᘧࡢ࣮࣎ࣜࣥࢢ࣮࣍ࣝ㸦┤ᚄ 10cm㸧࡟ᤄධྍ⬟࡞ࢧ࢖ࢬࡢཎᏊ᰾
஝ᯈ᳨ฟჾࢆヨసࡋࡓࠋලయⓗ࡟ࡣࠊྡྂᒇ኱ᏛࡢཎᏊ᰾஝ᯈ〇㐀タഛࢆ⏝࠸࡚ヨ㦂⏝ࡢཎᏊ᰾஝ᯈ㸦25cm x 30cm㸧ࡢ〇㐀ࢆ⾜࠸ࠊ࣮࣎ࣜࣥࢢ᥀๐Ꮝ࡟ᤄධྍ⬟࡞ࢧ࢖ࢬ࡟
ຍᕤࡋ࡚࢔࣑࣑ࣝࣛࢿ࣮ࢺࣃࢵࢡ࡟ᑒධࡋ࡚┿✵ࣃࢵࢡࡋࡓࠋࡉࡽ࡟ࠊ㞵ࡸᅵ୰ࡢỈ࡟ࡼࡿཎᏊ᰾஝ᯈ࡬ࡢᙳ㡪ࢆᢚ࠼ࡿࡓࡵ࡟㏱᫂࡞ࣂࣜ࢔ࣇ࢕࣒ࣝ࡟ࡼࡿ㏣ຍࣃࢵࢡࢆ⾜ࡗࡓ㸦ᅗ㸰㸧ࠋࡇࡢࡼ࠺࡞᳨ฟჾࢆ 2 ᯛ✚ᒙࡋ࡚Ᏹᐂ⥺ࡢほ ࢆᐇ᪋ࡋࡓࠋヨసࡋࡓ 2✀㢮ࡢཎᏊ᰾஝ᯈࡢ኱ࡁࡉࡣࠊࡑࢀࡒࢀࠊ66mm x 30mmࠊ250mm x 40mm ࡜ᑠࡉࡃࠊㄞ
ࡳྲྀࡾ⿦⨨࡛ࡢㄞࡳྲྀࡾ㡿ᇦ࠾ࡼࡧ㍕≀ྎ࡬ࡢཎᏊ᰾஝ᯈࡢࢭࢵࢺ᪉ἲࢆᕤኵࡋࡓࠋࡑ
ࡢ⤖ᯝࠊࣇ࢕࣒ࣝ 2 ᯛ㛫ࢆ㈏㏻ࡋࡓᏱᐂ⥺ࡢ㌶㊧ࢆ෌ᵓᡂࡍࡿ஦࡟ᡂຌࡋࡓࠋ௒ᚋࡣࠊ
ᮏ᳨ฟჾ࡟ࡼࡿᐇドヨ㦂ࢆ㐍ࡵࡿࠋᅗ㸰㸬ᕥᅗ㸸ヨసࡋࡓཎᏊ᰾஝ᯈࡢ෗┿㸦ࢧ࢖ࢬࡣᮏᩥ୰࡟グ㍕㸧ࠊྑᅗ㸸┤ᚄ 65mm
ࡢሷࣅ⟶࡟᳨ฟჾࢆᤄධࡍࡿࢹࣔࣥࢫࢺ࣮ࣞࢩࣙࣥࡢᵝᏊ࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ࡞ࡋ

47

ู⣬ᵝᘧ㸰㸫㸰ӋநતΝ༽͏ͪՒࢃ͹ &7 ࡳ଀Three-dimensional imaging of density structure inside volcanoesᐑᮏᡂᝅ࣭ᮾி኱Ꮫ࣭ᆅ㟈◊✲ᡤ࣭ຓᩍ᳃ᓥ㑥༤࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱࢩࢫࢸ࣒◊✲⛉࣭≉௵ຓᩍ㸯㸬◊✲┠ⓗ Ҳ๏޴͖Δ͹ϝϣʖΨϱ؏଎Ͳͺɾͨ͹๏޴ͶԌͮͱ੷෾͠Ηͪືౕௗ͹Ί͗଎ఈՆ೵͵෼ཀྵྖͲ͍ΖɽϝϣʖΨϱ͹‫ܨ‬࿑ͶԌͮͪ๏޴Ͷଲ͢ͱͺ‫ؔۯ‬෾մ೵Ν࣍ͪ͵͏ɽͨ͹ͪΌɾྭ͓ͻՒࢃ͹Ւಕ෉ۛ͹ືౕߑଆ͹ΊͶ‫ͱ͍ͮ͗ັڷ‬΍ɾࢃର͹ଠ͹෨෾͹෈ఈ੓͗ࠠ೘ͤΖɽ͞͹෈ఈ੓ΝखΕঈ͚Ͷͺɾҡ͵Ζ๏޴͖ΔଲেΝ؏଎ͤΖචགྷ͍͗ Ζ ɽ ࠕ ೖ ࢀ ࣏ ‫ ౕ ື ݫ‬΢ ϟ ʖ ζ ϱ ή घ ๑ ͳ ͢ ͱ ൅ ఴ Ν ਲ਼ ͝ ͪ ; ત &RPSXWHG
7RPRJUDSK\ ͹Γ͑ͶɾϝϣΨήϧϓΡ΍‫ݬ‬ཀྵదͶͺ؏଎๏޴ΝଁΏͤ͞ͳͶΓͮͱࢀ࣏‫ؔۯݫ‬෾մ೵ΝಚΖ͞ͳ͗Ͳ͘Ζɽգ‫ڊ‬Ͷ̐๏޴ɾ͍Ζ͏ͺ̑๏޴͖Δ͹ϝϣʖΨϱ؏଎͗ߨΚΗͪྭ΍͍Ζ͗ɾՒࢃָదͶ༙қٝ͵ࢀ࣏‫ؔۯݫ‬෾մ೵ͶୣͤΖͪΌͶͺ؏଎๏޴Ν͠ΔͶଁΏͤචགྷ͍͗Ζɽ㸰㸬◊✲ෆᐜ࡜ᡂᯝ ੫Ԯ‫ݟ‬ґ౨ࢤͶҒ஖ͤΖ୉࣪ࢃηαϨΠ‫ٲ‬Ͷଲ͢ɾࢃରΝҕ΋Γ͑Ͷ‫ף‬൚‫ݗ‬ड़‫ح‬Νઅ஖ͤΖ͞ͳͲɾଡ๏޴͖ΔϝϣʷΨϱ͹‫ݰ‬ਲΝ଎ఈ಼͢෨͹ࢀ࣏‫ߑౕືݫ‬ଆΝਬఈͤ
ΖࢾΊ͗‫ࡑݳ‬਒ΌΔΗͱ͏Ζɽ͞ΗΉͲͶߨΚΗͱͪ͘؏଎Νන  Ͷࣖͤɽ
タ⨨ࡋࡓᖺ

ほ

ࡢ

୍᪉ྥ࠶ࡓࡾࡢ

ほ

ᮇ㛫

㐍ᤖ࡞࡝

(すᬺ)

᪉ྥᩘ

᭷ຠ㠃✚(cm2)(days)

2018

3

100

60

ゎᯒ⤖ᯝࢆࡲ࡜ࡵ୰

2019

+8

200

90

ゎᯒ⤖ᯝࢆࡲ࡜ࡵ୰

2020

+8

600

120

⌧ീࡲ࡛᏶஢

⾲ 1㸸ࡇࢀࡲ࡛࡟኱ᐊᒣ࿘㎶࡟タ⨨ࡋࡓཎᏊ᰾஝ᯈ᳨ฟჾࡢ୍ぴࠋほࡢ᪉ྥᩘ࡟࠾

ࡅࡿࠕ+ࠖࡣ㸪௨๓࡜ྠࡌሙᡤ࡟タ⨨ࡍࡿࡢ࡛ࡣ࡞ࡃ㸪᪂ࡓ࡞᪉ྥ࠿ࡽほ ࡍࡿࡇ࡜ࢆ
ព࿡ࡍࡿࠋ 㸪 ᖺ࡟タ⨨ࡉࢀࡓཎᏊ᰾஝ᯈ᳨ฟჾ࡟ࡘ࠸࡚ゎᯒࡀ㐍ࡵࡽࢀ࡚࠸ࡿࠋ⌧ീ࣭⭾₶ฎ⌮ᚋ࡟᭩ࡃ஝ᯈ࡟࡚グ㘓ࡉࢀࡓ࣑࣮ࣗ࢜ࣥ㣕㊧ࡢ⏬ീࡣྡྂᒇ኱Ꮫ⌮Ꮫ◊✲⛉ᇶᮏ⢏Ꮚ◊✲ᐊࡢ㣕㊧ㄞࡳྲྀࡾ⿦⨨ +76 ࡟ࡼࡗ࡚ࢹࢪࢱࣝࢹ࣮ࢱ໬ࡉࢀ㸪ほ ᫬࡟ධᑕࡋࡓ࣑ࣗ
࣮࢜ࣥࡢ㣕㊧ࡀࢹ࣮ࢱୖ࡛෌ᵓᡂࡉࢀ㸪࣑࣮ࣗ࢜ࣥࣇࣛࢵࢡࢫࡀ ᐃࡉࢀࡓࠋ࣑࣮ࣗ࢜ࣥ
ࡢῶ⾶ࢹ࣮ࢱ࡜኱ᐊᒣࡢᆅᙧ࠿ࡽ㸪ྛࠎࡢ᪉ྥ࡟ࡘ࠸࡚  ḟඖゅᗘ✵㛫࡟࠾ࡅࡿᖹᆒᐦᗘ
ࡀồࡵࡽࢀࡓࠋ኱ᐊᒣ࡜࿘㎶ࡢᆅᙧᅗ࡜  ᖺ࡟タ⨨ࡉࢀࡓᒣయࢆ୍ᵝᐦᗘ࡛࠶ࡿ࡜௬ᐃ

48

ࡋࡓሙྜࡢྛ᪉ྥ࠿ࡽࡳࡓᖹᆒᐦᗘࢆ⾲  ࡟♧ࡍࠋᅗ  ࡟኱ᐊᒣࡢᆅᙧᅗ㸪㔜ຊ࡜࣑࣮ࣗ
࢜ࣥࡢほ Ⅼࡢ఩⨨㛵ಀࢆ♧ࡍࠋ⤖ᯝ࡜ࡋ࡚㸪࣑࣮࡛ࣗ࢜ࣥࡣ 㹼JFP ࡛࠶ࡗࡓࡢ
࡟ᑐࡋ㸪㔜ຊ࡛ồࡵࡽࢀࡓ್ࡣ sJFP ࡛࠶ࡾ㸪⤖ᯝࡣㄪ࿴ⓗ࡛࠶ࡗࡓࠋᚑࡗ࡚㸪࣑࣮ࣗ࢜ࣥほ ࢹ࣮ࢱࡢゎᯒฎ⌮ࡀṇࡋࡃ⾜ࢃࢀ࡚࠸ࡿࡇ࡜ࡀ☜ㄆࡉࢀࡓࠋࡇࢀࡽࡢ࣑ࣗ
࣮࢜ࣥࢹ࣮ࢱࢆ⏝࠸㸪௒ᚋ  ḟඖᐦᗘ࢖࣓࣮ࢪࢆồࡵ࡚࠸ࡃࠋ

ᅗ                      ⾲  ᅗ 㸸኱ᐊᒣࡢᆅᙧᅗ㸪 ᖺ࡟タ⨨ࡋࡓ஝ᯈ᳨ฟჾࡢ఩⨨㸦‫ڦ‬㸧㸪 ᖺ᫓࡟⾜ࡗࡓ㔜ຊᐃࡢほⅬ㸦‫ۑ‬㸧
ࠋᒣయࢆ୍ᵝᐦᗘ࡛࠶ࡿ࡜௬ᐃࡋࡓ࡜ࡁ㸪㔜ຊᐃ࡟ࡼࡗ࡚᥎ᐃࡉࢀࡓ್ࡣ sJFP ࡛࠶ࡗࡓࠋ ⾲ 㸸࣑ࣗ㸫࢜ࣥほ᪉ྥࡈ࡜࡟ᒣయࢆ୍ᵝᐦᗘ࡛࠶ࡿ࡜௬ᐃࡋࡓሙྜ࡟ồࡵࡽࢀࡓᒣయࡢᖹ

ᆒᐦᗘࠋ᪉ྥࡈ࡜࡟

ᐃࡍࡿᒣయࡢయ✚ࡀᚤጁ࡟␗࡞ࡿࡓࡵ࡟㸪ࡇࢀࡽࡢ್ࡣ࠶ࡿ⛬ᗘࡤࡽࡘࡁ

ࢆᣢࡘࠋ⤖ᯝ࡜ࡋ࡚ 㹼JFP ࡟ศᕸࡋࡓࠋ

࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ཎⴭㄽᩥ㸼࣭すᒣ❳୍㸪ᐑᮏᡂᝅ㸪㛗ཎ⩧ః㸪㔜ຊ ᐃ࡟ࡼࡿఀ㇋࣭኱ᐊᒣࢫࢥࣜ࢔ୣࡢᖹᆒᐦᗘࡢ᥎ᐃ㸪ᮾி኱Ꮫᆅ㟈◊✲ᡤᙡሗ㸪95, 1-4, 1-7 (2021).
ᐑᮏᡂᝅ, すᒣ❳୍, 㛗ཎ⩧ః, ཎᏊ᰾஝ᯈࢆ⏝࠸ࡓ࣑࣮ࣗ࢜ࣥࣛࢪ࢜ࢢࣛࣇ࢕࣮㸸ⅆᒣほᢏ⾡ࡢ㐍ᒎ, ᪥ᮏ෗┿Ꮫ఍ㄅ, 84, 1 (2021). (in print )㸺ᅜ㝿࣭ᅜෆ఍㆟㸼࣭ᐑᮏ ᡂᝅ, 㛗ཎ ⩧ః, ᳃ᓥ 㑥༤, ୰㔝 ᩄ⾜, ᑠᒣ ┿ே, 㕥ᮌ 㞝௓, ཎᏊ᰾஝ᯈ࡟ࡼࡿ
8 ᪉ྥⅆᒣ࣑ࣗ࢜ࢢࣛࣇ࢕࡜ྛほჾࡢࢹ࣮ࢱゎᯒ, ᪥ᮏ෗┿Ꮫ఍⛅Ꮨ኱఍, ࢜ࣥࣛ࢖ࣥ,12 ᭶ 10 ᪥ (2020)㸬
࣭ᐑᮏ ᡂᝅ, ཎᏊ᰾஝ᯈࢆ⏝࠸ࡓ࣑࣮ࣗ࢜ࣥࣛࢪ࢜ࢢࣛࣇ࢕࣮࡟ࡼࡿⅆᒣෆ㒊ᵓ㐀ࡢ◊✲,᪥ᮏ෗┿Ꮫ఍⛅Ꮨ኱఍, ࢜ࣥࣛ࢖ࣥ, 12 ᭶ 10 ᪥ (2020).

49ู⣬ᵝᘧ㸰㸫㸰ཎᏊ᰾஝ᯈࢆ⏝࠸ࡓ 0H9 ⣭࣮ࣞࢨ࣮ຍ㏿ࣉࣟࢺࣥࡢ≉ᛶホ౯
Characterization of 100 MeV-class laser-accelerated protons using nuclear emulsion㔠ᓮ┿⪽࣭⚄ᡞ኱Ꮫ኱Ꮫ㝔࣭ᾏ஦⛉Ꮫ◊✲⛉࣭ຓᩍ⚟⏣♸ோ࣭㔞Ꮚ⛉Ꮫᢏ⾡◊✲㛤Ⓨᶵᵓ࣭㛵すග⛉Ꮫ◊✲ᡤ࣭ୖᖍ◊✲ဨ⚄㔝ᬛྐ࣭ᮾி኱Ꮫ኱Ꮫ㝔࣭ᕤᏛ⣔◊✲⛉࣭ຓᩍὸ஭Ꮥᩥ࣭⚄ᡞ኱Ꮫ኱Ꮫ㝔࣭ᾏ஦⛉Ꮫ◊✲⛉࣭኱Ꮫ㝔⏕᳃ᓥ㑥༤࣭ྡྂᒇ኱Ꮫ㧗➼◊✲㝔࣭ᮍ᮶ᮦᩱࢩࢫࢸ࣒◊✲ᡤ࣭≉௵ຓᩍ㸯㸬◊✲┠ⓗ ㏆ᖺࠊ᪂ࡓ࡞࢖࢜ࣥຍ㏿ᡭἲ࡜ࡋ࡚ࠊ࣮ࣞࢨ࣮㥑ື࢖࢜ࣥຍ㏿ࡀὀ┠ࡉࢀ࡚࠾ࡾࠊຍ
㏿ჾタഛࡢᑠᆺ໬࣭┬㟁ຊ໬ࡀᮇᚅࡉࢀ࡚࠸ࡿࠋࡋ࠿ࡋ࡞ࡀࡽࠊᵝࠎ࡞ᛂ⏝฼⏝ࡀྍ⬟
࡜࡞ࡿ 100 MeV ࢆ㉸࠼ࡿࣉࣟࢺࣥⓎ⏕ࡣᮍࡔᡂຌࡋ࡚࠸࡞࠸ࠋࡲࡓࠊ100 MeV ࢆ㉸࠼ࡿ࣮ࣞࢨ࣮ຍ㏿ࣉࣟࢺࣥࢆ⢭ᗘⰋࡃ᳨ฟ࡛ࡁࡿỗ⏝ࡢ᳨ฟჾࡶᏑᅾࡋ࡞࠸ࠋᡃࠎࡢ◊✲ࢳ࣮࣒ࡀୡ⏺࡟ඛ㥑ࡅ࡚㛤Ⓨࡋࡓ࣐࢖ࢡ࣓࣮ࣟࢺ࣮ࣝ࢜ࢲ࣮ࡢỈ⣲ࢡࣛࢫࢱ࣮ࢆࢱ࣮
ࢤࢵࢺ࡜ࡋࡓ࣮ࣞࢨ࣮㥑ື࢖࢜ࣥຍ㏿࡛ࡣࠊࢡࣛࢫࢱ࣮ࡢ୧ᴟᛶ⭾ᙇࠊཬࡧࠊࢡࣛࢫࢱ
࣮ෆ࡟Ⓨ⏕ࡍࡿ⾪ᧁἼ࡟ࡼࡗ࡚ 100 MeV ࢆ㉸࠼ࡿ㧗࢚ࢿࣝࢠ࣮ࣉࣟࢺࣥࡀⓎ⏕ࡍࡿྍ⬟ᛶࡀ࠶ࡿࠋࡇࡢࡼ࠺࡞㧗࢚ࢿࣝࢠ࣮ࣉࣟࢺࣥࡢ࢚ࢿࣝࢠ࣮ࢫ࣌ࢡࢺࣝࡸ✵㛫ศᕸࢆࠊ࢖࢜ࣥࡢ㣕㊧ࢆ㧗⢭ᗘ࡟ྍど໬࡛ࡁࡿཎᏊ᰾஝ᯈࢆ⏝࠸࡚ホ౯ࡍࡿᢏ⾡ࢆ㛤ⓎࡋࠊᏳᐃ࠿ࡘ㧗ရ㉁࡞࣮ࣞࢨ࣮ຍ㏿࢖࢜ࣥࣅ࣮࣒Ⓨ⏕࡟ࡘ࡞ࡆࡿࡇ࡜ࢆ┠ⓗ࡜ࡍࡿࠋ㸰㸬◊✲ෆᐜ࡜ᡂᯝ ࣮ࣞࢨ࣮㥑ື࢖࢜ࣥຍ㏿ᐇ㦂࡛ࡣࠊ㧗ᙉᗘ࣮ࣞࢨ࣮࡜ࢱ࣮ࢤࢵࢺ≀㉁࡜ࡢ┦஫స⏝࡟ࡼࡾⓑⰍࡢ࢚ࢿࣝࢠ࣮ࢫ࣌ࢡࢺࣝࢆ᭷ࡍࡿ࢖࢜ࣥࡀຍ㏿ࡉࢀࠊ⌧ᅾ࡛ࡣࠊ100 MeV ࡟㏕ࡿࣉࣟࢺࣥࡢຍ㏿ࡀ☜ㄆࡉࢀ࡚࠸ࡿࠋࡋ࠿ࡋ࡞ࡀࡽࠊ࢖࢜ࣥ࡜ྠ᫬࡟ X ⥺ࡸ㟁Ꮚ⥺࡜࠸ࡗࡓ࢖࢜ࣥィ࡟࠾࠸࡚ࣀ࢖ࢬ࡜࡞ࡿᡂศࡀྠ᫬Ⓨ⏕ࡍࡿࡓࡵࠊ≉࡟ᩘ༑ MeV ࢆ㉸࠼ࡿ࢖࢜ࣥࡢィ࡟ࡣᅔ㞴࡞ㄢ㢟ࡀṧࡉࢀ࡚࠸ࡿࠋ᫖ᖺᗘࡲ࡛࡟ࠊᡃࠎࡢࢳ࣮࣒࡛ࡣࠊ

࣮ࣞࢨ࣮㥑ື࢖࢜ࣥຍ㏿ᐇ㦂࡟ཎᏊ᰾஝ᯈࢆᑟධࡋࠊ⤫ィᏛⓗ࡟Ỵᐃࡋࡓపឤᗘ⌧ീ᮲௳࡟ࡼࡗ࡚ X ⥺ࡸ㟁Ꮚ⥺࡟ࡼࡿࣀ࢖ࢬࢆపῶࡉࡏࠊୡ⏺࡛ึࡵ࡚࣮ࣞࢨ࣮ຍ㏿ࣉࣟࢺࣥࡢィ࡟ᡂຌࡋࡓࠋࡇࢀ࡟ࡼࡾࠊ࣮ࣞࢨ࣮ຍ㏿࢖࢜ࣥィ࡛᭱ࡶಙ㢗ᛶࡢ㧗࠸᳨ฟჾ࡜ࡋ࡚⏝࠸ࡽࢀ࡚࠸ࡿᅛయ㣕㊧᳨ฟჾ CR-39 ࡜┦⿵ⓗ࡟⏝࠸ࡿࡇ࡜࡛ࠊࡼࡾಙ㢗ᛶࡢ㧗࠸ィࡀྍ⬟࡛࠶ࡿࡇ࡜ࢆ♧ࡋࡓࠋࡲࡓࠊᑗ᮶ⓗ࡟Ⓨ⏕ࡍࡿ࡜ᮇᚅࡉࢀࡿ 100 MeVࢆ㉸࠼ࡿ࣮ࣞࢨ࣮ຍ㏿ࣉࣟࢺࣥ࡟ᑐࡋ࡚ࡣࠊཎᏊ᰾஝ᯈ࡜ᩓ஘యࢆ஺஫࡟✚ᒙࡋࡓ
Emulsion Cloud Chamber (ECC)ෆ࡛ࡢࠊࣉࣟࢺࣥࡢࢡ࣮ࣟࣥከ㔜ᩓ஘㔞࠿ࡽධᑕ࢚ࢿࣝ
ࢠ࣮ࢆ㏫᥎ᐃࡍࡿᡭἲࢆᥦ᱌ࡋࠊᶵᲔᏛ⩦ࢆ⏝࠸ࡓᩓ஘ゅᗘศᕸࡢゎᯒ࢔ࣝࢦࣜࢬ࣒ࡢ
㛤Ⓨࢆ⾜ࡗࡓࠋ ௒ᖺᗘࡣࠊ100 MeV ⣭ࣉࣟࢺࣥࡢධᑕ࢚ࢿࣝࢠ࣮㏫᥎ᐃᡭἲࡢ☜❧ࢆ┠ⓗ࡜ࡋࠊᶵᲔ

50Ꮫ⩦࡟ࡼࡿゎᯒ࢔ࣝࢦࣜࢬ࣒ࡢᨵ
Ⰻࢆ⾜ࡗࡓࠋࡲࡎࠊECC ࡟࠾ࡅࡿࣉࣟࢺࣥࡢከ㔜ࢡ࣮ࣟࣥᩓ஘㔞ࢆ᫂ࡽ࠿࡟ࡍࡿࡓࡵ࡟ࠊᨺᑕ⥺་Ꮫ⥲ྜ◊✲ᡤࡢࡀࢇ἞⒪⏝ຍ㏿ჾ
HIMAC ࡟࠾࠸࡚ࠊECC ࡟ᑐࡋ࡚100, 160, 230 MeV ࡢࣉࣟࢺࣥࢆ↷ᑕࡋࠊྛᒙࡢཎᏊ᰾஝ᯈ࠿ࡽᩓ஘
ゅᗘศᕸࢆᚓࡓࠋḟ࡟ࠊGEANT4࡟ࡼࡿࣔࣥࢸ࢝ࣝࣟࢩ࣑࣮ࣗࣞࢩ
࡛ࣙࣥࠊHIMAC ࡛ࡢ↷ᑕయ⣔ࢆ෌⌧ࡋࠊྛᒙ࡛ᚓࡽࢀࡿᩓ஘ゅᗘศ
ᕸࢆຍ㏿ჾᐇ㦂ࡢ⤖ᯝ࡜ẚ㍑ࡋࡓࠋ
ࡑࡢ⤖ᯝࠊ୧⪅ࡣ࡯ࡰ୍⮴ࡋ࡚࠾ࡾࠊ ᅗ 1 ECC ෆ࡛ࡢᩓ஘ゅᗘࢆㄝ᫂ኚᩘ࡜ࡋࡓ
ධᑕ࢚ࢿࣝࢠ࣮ࡢ㏫᥎ᐃ⤖ᯝ
GEANT4 ࡟ࡼࡿࢩ࣑࣮ࣗࣞࢩࣙࣥ
࡛ຍ㏿ჾᐇ㦂࡛ࡣᐇ⌧ᅔ㞴࡞ධᑕ࢚ࢿࣝࢠ࣮ࢆ⣽࠿ࡃኚ໬ࡉࡏࡓሙྜࡢᩓ஘ゅᗘศᕸࢹ࣮ࢱࢆ⏕ᡂ࡛ࡁࡿࡇ࡜ࡀศ࠿ࡗ
ࡓࡓࡵࠊࡇࢀࢆ฼⏝ࡋࠊᶵᲔᏛ⩦⏝ࡢࢹ࣮ࢱࢭࢵࢺࢆసᡂࡋࡓࠋᮏ◊✲࡛ࡣࠊᶵᲔᏛ⩦࡟㠀⥺ᙧᅇᖐศᯒࡢ୍✀࡛࠶ࡿࢧ࣏࣮ࢺ࣋ࢡࢺࣝᅇᖐࢆ⏝࠸ࡓࠋᅗ 1 ࡟㛤Ⓨࡋࡓ࢔ࣝࢦ
ࣜࢬ࣒ࢆ⏝࠸࡚ࣉࣟࢺࣥࡢධᑕ࢚ࢿࣝࢠ࣮ࢆ㏫᥎ᐃࡋࡓ⤖ᯝࡢ୍౛ࢆ♧ࡍࠋᐇ㝿࡟ධᑕࡋࡓ࢚ࢿࣝࢠ࣮࡟ᑐࡋ࡚ࠊண
ࡿࠋ௒ᅇࡢ౛࡛ࡣࠊண

ࡉࢀࡓධᑕ࢚ࢿࣝࢠ࣮ࢆ 2 ḟඖࣄࢫࢺࢢ࣒࡛ࣛ♧ࡋ࡚࠸⢭ᗘࡢᣦᶆ࡜࡞ࡿỴᐃಀᩘࡣ 0.82 ࡛࠶ࡾࠊ㧗⢭ᗘ࡟ධᑕ࢚ࢿ

ࣝࢠ࣮ࢆ㏫᥎ᐃ࡛ࡁࡿࡇ࡜ࡀศ࠿ࡗࡓࠋᶵᲔᏛ⩦ࡢࣃ࣓࣮ࣛࢱタᐃ࡟ᨵⰋࡢవᆅࡣ࠶ࡿ
ࡶࡢࡢࠊᮏ◊✲ࡢ┠ⓗ࡛࠶ࡿ ECC ෆ࡛ࡢከ㔜ࢡ࣮ࣟࣥᩓ஘㔞࠿ࡽ 100 MeV ⣭ࣉࣟࢺࣥࡢධᑕ࢚ࢿࣝࢠ࣮ࢆ㏫᥎ᐃࡍࡿᡭἲ࡟ࡘ࠸࡚ࡣ☜❧࡛ࡁࡓ࡜ゝ࠼ࡿࠋ௒ᚋࡣࠊECC ࡜࢚ࢵࢳࣥࢢᆺᅛయ㣕㊧᳨ฟჾ CR-39 ࡜ࡢ⤌ࡳྜࢃࡏ࡟ࡼࡾࠊከ㔜ࢡ࣮ࣟࣥᩓ஘㔞࡜㣕⛬ࡢ཮᪉࠿ࡽධᑕ࢚ࢿࣝࢠ࣮ࢆỴᐃࡍࡿయ⣔ࢆᵓ⠏ࡋࠊࡼࡾ㧗⢭ᗘ࡞࣮ࣞࢨ࣮ຍ㏿ࣉࣟࢺࣥィᡭἲࢆ㛤Ⓨࡋࡓ࠸࡜⪃࠼࡚࠸ࡿࠋ

࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ᅜ㝿࣭ᅜෆ఍㆟㸼࣭ ὸ஭Ꮥᩥ㸪㔠ᓮ┿⪽㸪⚄㔝ᬛྐ㸪໭ᕝᬸᏊ㸪㤳⸨ಙ㏻㸪ᑠᖹ ⪽㸪ᒣෆ▱ஓ㸪ᑠ⏣ၨ஧㸪᳃ᓥ㑥༤㸪⚟⏣♸ோ㸪ཎᏊ᰾஝ᯈࢫࢱࢵࢡෆ࡛ࡢከ㔜ࢡ࣮ࣟࣥᩓ஘㐣⛬ࢆ฼⏝ࡋࡓࢧࣈ GeV ⣭࣮ࣞࢨ࣮ຍ㏿㝧Ꮚ⥺ホ౯ᡭἲࡢ㛤Ⓨ㸪᪥ᮏ≀⌮Ꮫ఍ 2020 ᖺ⛅Ꮨ኱఍㸪࢜ࣥࣛ࢖ࣥ㛤ദ㸪2020 ᖺ 9 ᭶ 8 ᪥㹼11 ᪥࣭ ὸ஭Ꮥᩥ㸪㔠ᓮ┿⪽㸪⚄㔝ᬛྐ㸪໭ᕝᬸᏊ㸪㤳⸨ಙ㏻㸪ᑠᖹ ⪽㸪ᒣෆ▱ஓ㸪ᑠ⏣ၨ஧㸪᳃ᓥ㑥༤㸪⚟⏣♸ோ㸪Emulsion Cloud Chamber ࢆ⏝࠸ࡓࢧࣈ GeV ⣭࣮ࣞࢨ࣮ຍ㏿㝧Ꮚ⥺ィ㸪➨ 81 ᅇᛂ⏝≀⌮Ꮫ఍⛅ᏘᏛ⾡ㅮ₇఍㸪࢜ࣥࣛ࢖ࣥ㛤ദ㸪2020 ᖺ 9

᭶ 8 ᪥㹼11 ᪥51ู⣬ᵝᘧ㸰㸫㸰㟁ຊ⣔⤫ࡢ࢜ࣇࢢࣜࢵࢻ໬࡟ᚲせ࡞⵳㟁ụࡢᐜ㔞పῶ࡟㛵ࡍࡿ◊✲
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⧊ཎ኱࣭⏘ᴗᢏ⾡⥲ྜ◊✲ᡤ࣭෌⏕ྍ⬟࢚ࢿࣝࢠ࣮◊✲ࢭࣥࢱ࣮࣭◊✲ဨຍ⸨୔ె࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ࣭ᩍᤵ
௒୰ᨻ㍤࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ࣭≉௵ຓᩍ㸯㸬◊✲┠ⓗᮍ᮶ࡢ㟁ຊࢩࢫࢸ࣒ࡢ୍ᙧែ࡛࠶ࡿ࢜ࣇࢢࣜࢵࢻࢆᐇ⌧ࡍࡿࡓࡵࡢタഛ࡜ࡋ࡚⵳㟁ụࡣᚲ㡲࡛࠶ࡿࡀ㸪ᮏ◊✲࡛ࡣ⵳㟁ụᐜ㔞పῶࢆ┠ⓗ࡜ࡋࡓ㟁ຊࢩࢫࢸ࣒ࡢไᚚ᪉ἲࢆ
᫂ࡽ࠿࡟ࡍࡿࠋᚑ᮶㸪㟁Ẽ࢚ࢿࣝࢠ࣮ࢆ㟂せᐙࡀ౑⏝ࡍࡿࡓࡵ࡟ࡣ㸪ⅆຊⓎ㟁ࡸ㏦㟁⥺࡞࡝ࡢ኱つᶍ㟁ຊࢩࢫࢸ࣒࡟㟂せᐙࢆ᥋⥆ࡍࡿᚲせࡀ࠶ࡗࡓࠋ࢜ࣇࢢࣜࢵࢻࡣ኱つᶍ㟁ຊࢩࢫࢸ࣒࠿ࡽ⊂❧ࡋࡓࢩࢫࢸ࣒࡛࠶ࡾ㸪࢜ࣇࢢࣜࢵࢻෆ࡟タ⨨ࡉࢀࡓ෌⏕ྍ⬟ྍ⬟࢚ࢿࣝࢠ࣮㟁※࡜⵳㟁ụࢆ⏝࠸࡚㟁Ẽ࢚ࢿࣝࢠ࣮ࢆ౪⤥ࡍࡿࠋࡋ࠿ࡋ࡞ࡀࡽ㸪ࡇࢀࢆᐇ⌧ࡍࡿࡓࡵ࡟ࡣⳘ኱࡞ᐜ㔞ࡢ⵳㟁ụࡀᚲせ࡛࠶ࡿࠋᮏ◊✲࡛ࡣ㸪㟂せᐙࡢ㟁Ẽ࢚ࢿࣝࢠ࣮
ᾘ㈝㔞࡟ぢྜࡗࡓ⵳㟁ụᐜ㔞ࢆ⟬ฟࡍࡿ᪉ἲࢆ᫂ࡽ࠿࡟ࡍࡿ࡜࡜ࡶ࡟㸪⵳㟁ụᐜ㔞ࢆపῶࡍࡿ᪉ἲ࡟ࡘ࠸࡚◊✲ࡍࡿࠋ㸰㸬◊✲ෆᐜ࡜ᡂᯝ
෌⏕ྍ⬟࢚ࢿࣝࢠ࣮୺యࡢ㓄㟁⣔⤫࢜ࣇࢢࣜࢵࢻ໬ࢆᐇ⌧ࡍࡿࡓࡵ࡟ࡣ㸪㓄㟁⣔⤫ෆࡢ㟁ຊ㟂せࢆ‶ࡓࡍࡔࡅࡢ༑ศ࡞ᐜ㔞ࡢ෌⏕ྍ⬟࢚ࢿࣝࢠ࣮㟁※ࡀᚲせ࡜࡞ࡿࠋ୍᪉㸪෌⏕ྍ⬟࢚ࢿࣝࢠ࣮㟁※ࡢⓎ㟁㟁ຊ࡜㟁ຊ㟂せࡣᖖ࡟ࣂࣛࣥࢫࡋ࡚࠸ࡿ࡜ࡣ㝈ࡽ࡞࠸ࡢ࡛㸪㟂⤥࢖ࣥࣂࣛࣥࢫࢆゎᾘࡍࡿࡓࡵ࡟⵳㟁ụࡢᑟධࡀᚲ㡲࡛࠶ࡿ࡜⪃࠼ࡽࢀ࡚࠸ࡿࠋ
༑ศ࡞ᐜ㔞ࡢ⵳㟁ụࢆ⏝ព࡛ࡁࢀࡤ㸪෌⏕ྍ⬟࢚ࢿࣝࢠ࣮㟁※࡜⵳㟁ụࡢࡳ࡛㓄㟁⣔⤫ࢆ᏶඲࡟࢜ࣇࢢࣜࢵࢺ໬ࡍࡿࡇ࡜ࡶྍ⬟࡛࠶ࡿ࡜⪃࠼ࡽࢀࡿࡀ㸪⵳㟁ụࢥࢫࢺࢆ⪃࠼ࡿ࡜⌧ᐇⓗ࡟ࡣᅔ㞴࡛࠶ࡿ࡜⪃࠼ࡽࢀ࡚࠸ࡿࠋࢥࢫࢺᑐ⟇࡜ࡋ࡚⵳㟁ụᐜ㔞ࢆῶᑡࡉࡏࡿ
ࡓࡵ࡟㸪ᑠつᶍ࢞ࢫࢱ࣮ࣅࣥⓎ㟁ᶵ࡞࡝ࡢྍไᚚ㟁※ࢆ࢜ࣇࢢࣜࢵࢻෆ࡟タ⨨ࡍࡿࡇ࡜ࡣ᭷ຠ࡛࠶ࡿ࡜⪃࠼ࡽࢀ࡚࠸ࡿࠋ୍᪉㸪ᚲせ࡞࡜ࡁࡔࡅ㓄㟁⣔⤫ࡢୖ఩⣔⤫࠿ࡽ㟁ຊ౪⤥ࢆཷࡅࡿࡇ࡜ࡀ࡛ࡁࡿࢭ࣑࢜ࣇࢢࣜࢵࢻᙧែࡶ⵳㟁ụᐜ㔞ࢆపῶࡉࡏࡿࡢ࡟᭷ຠ࡞
ᡭẁ࡛࠶ࡿ࡜ゝ࠼ࡿࠋᮏ◊✲࡛ࡣ㸪ᅗ  ࡟♧ࡍ㓄㟁⣔⤫ࢆࢭ࣑࢜ࣇࢢࣜࢵࢻᙧែ࡛㐠⏝ࡍࡿࡇ࡜ࢆ᝿ᐃࡋ㸪ୖ఩⣔⤫࡜㓄㟁⣔⤫㛫ࡢ₻ὶୖୗ㝈್ࢆタᐃࡍࡿࡇ࡜࡛㸪⵳㟁ụᐜ㔞ࢆపῶ࡛ࡁࡿࡇ࡜
ࢆ᫂ࡽ࠿࡟ࡋࡓࠋࡲࡓ㸪 ᖺ㛫ࢆ࠸ࡃࡘ࠿ࡢᮇ㛫࡟༊ษࡾ㸪ᮇ㛫ࡈ࡜࡟₻ὶୖୗ㝈್ࢆタᐃࡍࡿ࡜⵳㟁ụᐜ㔞ࢆࡉࡽ࡟పῶ࡛ࡁࡿࡇ࡜ࢆ᫂ࡽ࠿࡟ࡋࡓࠋᅗ  ࡣ₻ὶୖୗ㝈್ࢆタᐃࡍࡿᮇ㛫ᩘ࡜₻ὶୖୗ㝈್ࡢᖺ㛫ᖹᆒ್ࡢ㛵ಀࢆ♧ࡋ࡚࠾ࡾ㸪⵳㟁ụࡢᐜ㔞ࢆ 52㹼 0:K ࡢ⠊ᅖ࡛ኚ࠼࡚ィ⟬ࡋࡓ⤖ᯝ࡛࠶ࡿࠋ㓄㟁⣔⤫ෆࡢኴ㝧ගⓎ㟁㐃⣔㔞ࡣ
0: ࡛࠶ࡿࠋྠᅗ࠿ࡽ㸪₻ὶୖୗ㝈್ࢆタᐃࡍࡿᮇ㛫ᩘࡀྠࡌ࡛࠶ࡿሙྜ㸪⵳㟁ụᐜ㔞ࢆᑠࡉࡃࡍࡿ࡟ࡣ₻ὶୖୗ㝈್ࢆ኱ࡁࡃࡍࡿᚲせࡀ࠶ࡿࠋ୍᪉࡛㸪₻ὶୖୗ㝈್ࡢࣞ࣋ࣝࡀྠ⛬ᗘ࡛࠶ࡿ࡜ࡇࢁࢆẚ㍑ࡍࡿ࡜㸪ᮇ㛫ᩘࢆቑࡸࡍࡇ࡜࡛⵳㟁ụᐜ㔞ࡀῶᑡࡍࡿ
ࡇ࡜ࡀࢃ࠿ࡿࠋ
⵳㟁ụᐜ㔞࡜₻ὶୖୗ㝈್ࢆタᐃᚋ㸪ࢭ࣑࢜ࣇࢢࣜࢵࢻ࡜ࡋ࡚⵳㟁ụࡢ඘ᨺ㟁ࢆ࡝ࡢࡼ࠺࡟⾜࠺࠿ࢆ᳨ウࡋࡓࠋ₻ὶୖୗ㝈್ࢆ㉸࠼ࡓሙྜࡢࡳ⵳㟁ụࡢ඘ᨺ㟁ࢆ⾜࠺࡜㸪⵳㟁ụࡢ඘ᨺ㟁ࢆά⏝ࡍࡿ᫬㛫ࡀᑡ࡞ࡃ㸪ୖ఩⣔⤫࠿ࡽࡢཷ㟁㟁ຊ㔞࡜ୖ఩⣔⤫࡬ࡢ㏫₻ὶ㟁ຊ㔞ࡀከࡃ࡞ࡿࠋࡑࡇ࡛㸪⵳㟁ụࢆ✚ᴟⓗ࡟඘ᨺ㟁ࡉࡏ࡚㸪ࢭ࣑࢜ࣇࢢࣜࢵࢻෆ࡛
Ⓨ㟁ࡋࡓ㟁ຊࢆࢭ࣑࢜ࣇࢢࣜࢵࢻෆ࡛࡛ࡁࡿࡔࡅᾘ㈝ࡋ㸪ୖ఩⣔⤫࡜ࡢ㟁ຊࡢࡸࡾྲྀࡾࢆᚲせ᭱ᑠ㝈࡜ࡍࡿ᪉ἲࢆ⪃᱌ࡋࡓ㸦ᅗ 㸧ࠋ୍᪉࡛㸪⵳㟁ụࢆ✚ᴟⓗ࡟඘ᨺ㟁ࡍࡿ࡜㸪⵳㟁ụᐜ㔞ไ㝈࡟ࡼࡾ඘ᨺ㟁ࡀ࡛ࡁ࡞࠸ሙྜࡶ⪃࠼ࡽࢀࡿࠋࡇࡢᑐ⟇࡜ࡋ࡚㸪⵳㟁ụᐜ㔞࡟ᑐࡍࡿ඘㟁㟁ຊ㔞࡟వ⿱ࡀ࡛ࡁࡿࡼ࠺࡟⵳㟁ụࢆ඘ᨺ㟁ࡍࡿ᪉ἲࢆ⪃᱌ࡋࡓ
㸦ᅗ 㸧
ࠋ

ᮏ◊✲࡛᫂ࡽ࠿࡟ࡋࡓࢭ࣑࢜ࣇࢢࣜࢵࢻࡢ඘ᨺ㟁ࣃࢱ࣮ࣥࡀୖ఩⣔⤫ࡢ㐠⏝࡟࡝ࡢࡼ࠺࡞ᙳ㡪ࢆཬࡰࡍࡢ࠿㸪༑ศ࡟⪃ᐹ࡛ࡁ࡚࠸࡞࠸ࠋ௒ᚋࡢㄢ㢟࡜ࡋ࡚㸪ୖ఩⣔⤫࠿ࡽொླྀ৏Ծ‫ݸ‬஍͹೧ؔฑ‫> ۋ‬0:@ぢ࡚᭷⏝࡞ࢭ࣑࢜ࣇࢢࣜࢵࢻࡢ㟁ຊ㟂⤥ࣃࢱ࣮ࣥࢆ᫂ࡽ࠿࡟ࡍࡿࡇ࡜ࡀ࠶ࡆࡽࢀࡿࠋ
டుஓ༲ྖ 0:K
0:K
0:K
0:K
0:K
0:K
0:K



















ொླྀ৏Ծ‫ݸ‬஍ΝઅఈͤΖ‫਼ؔغ‬ᅗ    ₻ὶୖୗ㝈್࡜タᐃᮇ㛫ᩘࡢ㛵ಀᅗ    㓄㟁⣔⤫ࣔࢹࣝ







ᅗ    㐃⣔⥺₻ὶࢆᴟຊᑠࡉࡃࡍࡿࡓࡵᅗ    ⵳㟁ụࡢ඘㟁㟁ຊ㔞୙㊊ࢆᅇ㑊ࡍࡢ⵳㟁ụࡢ඘ᨺ㟁ࣃࢱ࣮ࣥ

ࡿࡓࡵࡢ඘㟁㟁ຊ㔞ไᚚࣃࢱ࣮ࣥ

࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ཎⴭㄽᩥ㸼 ࡞ࡋ㸺ᅜ㝿࣭ᅜෆ఍㆟㸼 ᖺ  ᭶㛤ദணᐃࡢ㟁ẼᏛ఍㟁ຊ࣭࢚ࢿࣝࢠ࣮㒊㛛኱఍࡟࠾࠸࡚Ⓨ⾲ணᐃ㸺⏘ᴗ㈈⏘ᶒ㸼 ࡞ࡋ53ู⣬ᵝᘧ㸰㸫㸰」ᩘࡢ㡿ᇦ࢔ࣥࢧࣥࣈࣝண ࢆ⏝࠸ࡓ᪥ᑕ㔞ண ኱እࡋணぢྍ⬟ᛶ
Foreseeability of large forecast error on surface solar radiation
using multi-regional ensemble forecastᏱ㔝ྐ╬࣭᪥ᮏ኱Ꮫᩥ⌮Ꮫ㒊࣭ᆅ⌫⛉Ꮫ⛉࣭෸ᩍᤵ⯚ぢ⩧ኴ࣭ྡྂᒇ኱ᏛᕤᏛ◊✲⛉㟁ẼᕤᏛᑓᨷ࣭M2ຍ⸨୔ె࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ࣭ᩍᤵ㸯㸬◊✲┠ⓗ ኴ㝧ගⓎ㟁ࡀ኱㔞ᑟධࡉࢀࡓ㟁ຊࢩࢫࢸ࣒࡟࠾ࡅࡿ㟁ຊ㟂⤥ィ⏬࡟࠾࠸࡚㸪ฟຊணㄗᕪ࡟ᑐᛂࡍࡿࡓࡵࡢㄪᩚຊࢆ㐺ษ࡟☜ಖࡍࡿ㝿㸪ண ࡢಙ㢗ᗘࢆᐃ㔞ⓗ࡟ホ౯ࡍࡿࡇ࡜࡛㸪ㄪᩚຊࡢᚲせ㔞ࢆᑠࡉࡃ࡛ࡁࡿࠋᮏ◊✲࡛ࡣ㸪࣓ࢯࢫࢣ࣮ࣝ NWP ࣔࢹ࡛ࣝ࠶ࡿ

WRF ࡟࡚␗࡞ࡿ≀⌮ࢫ࣮࣒࢟ࡢ⤌ࡳྜࢃࡏ࡟ࡼࡿࣔࢹࣝ㛫ࡢྛ✀Ẽ㇟せ⣲ࡢண ್ࡢࡤࡽࡘࡁ࡟ࡼࡾ㸪᪥ᑕ㔞ண ࡢ኱እࡋணぢࡢྍ⬟ᛶࢆ᳨ウࡋࡓࠋ㸰㸬◊✲ෆᐜ࡜ᡂᯝ
 WRF ࡢ≀⌮ࢫ࣮࣒࢟ࡢ࠺ࡕࠊ᪥ᑕ࡟㛵ࢃࡿ㞼≀⌮ࢫ࣮࣒࢟ࠊ᥋ᆅቃ⏺ᒙࢫ࣮࣒࢟ࠊ
኱Ẽቃ⏺ᒙࢫ࣮࣒࢟ࠊ▷Ἴᨺᑕࢫ࣮࣒࢟ࡢࣔࢹࣝࡢ⤌ࡳྜࢃࡏࢆᵝࠎ࡟ኚ໬ࡉࡏࡓ
Case-1㹼Case-7 ࡢ 7 ㏻ࡾࡢ WRF ࣔࢹࣝࢆ⏝࠸ࡓࠋ኱እࡋணぢࢆุ᩿ࡍࡿࡓࡵࡢ᪥ᑕண
್࡜ࡋ࡚ࠊCase-1㹼Case-7 ࡢ࢔ࣥࢧࣥࣈࣝᖹᆒ್ࢆ⏝࠸ࡓࠋண ㄗᕪࢆ⾲ࡍᑻᗘ࡜ࡋ
࡚ࠊẖ᫬㛫࡟࠾ࡅࡿ᪥ᑕண

್ࡢᐇ್࡜ࡢ᪥ูᖹᆒ஧஌ㄗᕪ㸦RMSE㸧 [kW/m2] ࢆ⏝࠸ࠊRMSE ࡀホ౯ᑐ㇟ᮇ㛫࡟࠾࠸࡚࣮࣡ࢫࢺ 10㸣௨ෆࡢ᪥ࢆண ኱እࡋ᪥࡜ࡋࡓࠋ
ண኱እࡋࡢணぢᣦᶆࡣ௨ୗࡢࡼ࠺࡟ィ⟬ࡋࡓࠋࡲࡎࠊCase- i ( i=1㹼7)ࡢࣔࢹࣝ࡟࠾

࠸࡚ࠊt ᫬ྎ(t = 1㹼7)ࡢẼ㇟せ⣲ண೫ᕪࡢ᪥ᖹᆒ್

ࢆணࡅ࡛ࡣ࡞ࡃࠊࡑࡢண࡟㛵ࢃࡿẼ್せ⣲ண ್

ࢆ⟬ฟࡋࠊྛࣔࢹࣝ࡟ࡼࡿ

ࡢᶆ‽኱እࡋࡢணぢᣦᶆ࡜ࡋࡓࠋẼ㇟せ⣲࡜ࡋ࡚ࡣࠊ᪥ᑕᙉᗘ(I)ࡔ
(T)ࠊẼᅽ(P)ࠊᮾす㢼(U)ࠊ༡໭㢼(V)ࠊୗᒙ㞼㔞(CL)ࠊ

୰ᒙ㞼㔞(CM)ࠊୖᒙ㞼㔞(CH)ࠊ┦ᑐ‵ᗘ(RH)ࡶྵࡵࡓ 9 ࡘࡢ㡯┠࡟╔┠ࡋࠊணぢᣦᶆ࡜ࡋ࡚ࡢ᭷⏝ᛶࢆẚ㍑ࡋࡓࠋண ኱እࡋࡀ㉳ࡇࡿྍ⬟ᛶࢆṇࡋࡃணぢ࡛ࡁࡿᗘྜࢆ⾲ࡍᑻᗘ࡜ࡋ࡚ ROC ᭤⥺ࢆ⏝࠸ࡓࠋ඲᪥ᩘࡢ࠺ࡕண ኱እࡋ࡜ᐃ⩏ࡍࡿ᪥ࡢ๭ྜȘࢆ㐃⥆ⓗ࡟ኚ໬ࡉࡏࠊȘࡈ࡜࡟ᐇ㝿࡟ண ኱እࡋࡀ㉳ࡇࡗࡓ᪥ࡢ࠺ࡕࡑࡢணぢ࡟ᡂຌࡋࡓ᪥ࡢ๭ྜࢆ⾲ࡍⓗ୰⋡(HR)ࠊᐇ
㝿࡟ண኱እࡋࡀ㉳ࡇࡽ࡞࠿ࡗࡓ᪥ࡢ࠺ࡕ࡛ㄗࡗ࡚ண

኱እࡋ᪥࡜ணぢࡋࡓ᪥ࡢ๭ྜ

ࢆ⾲ࡍㄗ᳨ฟ⋡(FAR) ࢆ⟬ฟࡋࠊHR ࡜ FAR ࡜ࡢ㛵ಀࢆࣉࣟࢵࢺࡋࡓࡶࡢࡀ ROC ᭤⥺
࡛࠶ࡿࠋROC ᭤⥺ࡼࡾࡶୗഃࡢ㠃✚ AUC ࡣண ኱እࡋࡢணぢ⢭ᗘࢆ⾲ࡍࠋྡྂᒇࠊ㟼ᒸࠊ㛗㔝ࠊᐩᒣࡢྛẼ㇟ᐁ⨫࡟࠾ࡅࡿ 2016 ᖺ㹼2018 ᖺࡢኟ 6 ᭶㹼8 ᭶ࡢ
8 ᫬ྎ㹼15 ᫬ྎࡢ 8 ᫬㛫ࢆホ౯ᑐ㇟࡜ࡋࡓࠋ

54

ᴫࡡᬕࢀ࡜ண

ࡉࢀࡓ᪥ࡢሙྜ࡟ࡘ࠸

I

1.0࡚㸪㛗㔝࡟㛵ࡍࡿ I㸪CL㸪U ࡟ࡼࡿྛணぢᣦᶆ࡟㛵ࡍࡿ ROC ᭤⥺ࢆᅗ 1 ࡟♧ࡍࠋ࠸ࡎࢀ

CL

U

0.8

᭷⏝࡜ゝ࠼ࡿࠋ
PV ฟຊண ኱እࡋࡢணぢ࡟࠾࠸࡚ࡣࠊ✵᣺ࡾࡼࡾࡶぢ㏨ࡋࡢࣜࢫࢡᅇ㑊ࡀඃඛࡉࢀ

Hit Rate (HR)ࡶ AUC ࡣ 0.7 ⛬ᗘ࡛࠶ࡾ㸪ணぢᣦᶆ࡜ࡋ࡚
0.6

0.4

ࡿࠋࡇࡢࡼ࠺࡞ほⅬ࠿ࡽ TR  0.8 ࡟╔┠ࡍࢀࡤ㸪U ࡟ࡼࡿணぢᣦᶆࡢ᪉ࡀ I ࡼࡾࡶ FARࡣᑠࡉ࠸ࠋ㢼ࡢண್࡜࠸࠺ࡢࡣ㐃⥆ⓗ࡞್࡛ฟຊࡉࢀࡿࡢ࡟ᑐࡋ㸪㞼㔞ࡸ᪥ᑕᙉᗘ
ࡢண

0.2

0.0
0.0

್ࡣᩘ್ணሗࡢィ⟬ࡢ୰࡛ࡢẼ㇟᮲

0.2

0.4
0.6
0.8
False Alarm Rate (FAR)

1.0௳ࡢࢃࡎ࠿࡞ᕪ࡟ࡼࡗ࡚ฟຊࡀ኱ࡁࡃ␗࡞

ᅗ 1 㛗㔝࡟࠾ࡅࡿྛ኱እࡋணぢᣦᶆࡿሙྜࡀ࠶ࡿࠋᒣ࡟ᅖࡲࢀࡓ㛗㔝ᕷ࡟ࡘ࠸࡟㛵ࡍࡿ ROC ᭤⥺࡚ࡣࡇࡢࡼ࠺࡞≉ᚩࡀ⾲ࢀ㸪ணࡢ୙☜ᐇᛶࢆุ᩿ࡍࡿୖ࡛㸪᪥ᑕᙉᗘࡸ㞼㔞ࡢࡤࡽࡘࡁࡼࡾࡶ㸪㐃⥆ⓗ࡞್࡛ண ್ࡀฟຊࡉࢀ
ࡿ㢼ࡢࡤࡽࡘࡁ࡟╔┠ࡋࡓ᪉ࡀ㸪ணࡢ኱እࡋணぢ࡟ࡣ᭷ຠ࡛࠶ࡗࡓࠋ

௚ࡢᆅⅬ࡟ࡘ࠸࡚ࡣ㸪ࣔࢹࣝ㛫࡟࠾ࡅࡿ᪥ᑕ㔞ࡲࡓࡣୗᒙ㞼㔞ࡢணண኱እࡋࡢணぢ࡟᭷⏝࡛࠶ࡗࡓࠋࡲࡓ㸪ᒁᡤⓗ࡞ண್ࡢࡤࡽࡘࡁࡀ

್ࡢࡤࡽࡘࡁ࠿ࡽࡣᗈ⠊ᅖࡢணࡢ୙☜ᐇᛶࢆุ᩿ࡋ࡟ࡃ࠸ࡓࡵ㸪๓⥺࡞࡝ࡢẚ㍑ⓗ✵㛫ࢫࢣ࣮ࣝࡢ኱ࡁ࡞Ẽ㇟⌧㇟࡟ࡼࡗ࡚᪥ᑕ㔞ࡀపࡃண ࡉࢀࡿ᪥ࡘ࠸࡚ࡣ㸪኱እࡋࡢ᳨ฟຊࡀపࡃ࡞ࡗࡓࠋ

࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ᅜ㝿࣭ᅜෆ఍㆟㸼
[1] ⯚ぢ㸪௒୰㸪ᰩᮏ㸪ᮡᮏ㸪ຍ⸨㸪Ᏹ㔝㸸
ࠕWRF ࡢ␗࡞ࡿ≀⌮ࢫ࣮࣒࢟࡟ࡼࡿẼ㇟せ⣲ண್ࡢࡤࡽࡘࡁࢆ⏝࠸ࡓ᪥ᑕண኱እࡋணぢࠖ
㸪௧࿴2ᖺᗘ㟁Ẽ࣭㟁Ꮚ࣭᝟ሗ㛵ಀᏛ఍ᮾᾏᨭ㒊㐃ྜ኱఍㸪࢜ࣥࣛ࢖ࣥ㛤ദ㸦ឡ▱┴❧኱Ꮫ㸧
㸪2020ᖺ9᭶3㹼4᪥
[2] S. Funami, M. Imanaka, M. Kurimoto, S. Sugimoto, T. Kato, F. Uno: “PREDICTION OF
IRRADIANCE FORECAST BUSTS BY VARIATION OF WEATHER ELEMENTS OF WRF
USING DIFFERENT PHYSICAL SCHEMES”, 30th International Photovoltaic Science andEngineering Conference (PVSEC-30) & Global Photovoltaic Conference 2020 (GPVC 2020),
International Convention Center Jeju, Korea, Hybrid Conference, T9-01-OP-4, 2020.11.8-13[3] S. Funami, M. Imanaka, M. Kurimoto, S. Sugimoto, T. Kato, F. Uno: “Prediction of
Forecast Busts by Variation of Weather Elements of WRF using Different Physical
Schemes”, International Conference on Smart Grids and Energy Systems (SGES 2020),
Perth, Australia, Virtual, 73, 2020.11.23-26[4] ⯚ぢ㸪௒୰㸪ᰩᮏ㸪ᮡᮏ㸪ຍ⸨㸪Ᏹ㔝㸸ࠕ≀⌮ࢫ࣮࣒࢟ࡀ␗࡞ࡿ」ᩘࡢWRFࣔࢹࣝ࡟ࡼࡿẼ㇟せ⣲ண್ࡢࡤࡽࡘࡁࢆ⏝࠸ࡓ᪥ᑕண ኱እࡋணぢࠖ㸪㟁ẼᏛ఍᪂࢚ࢿ

ࣝࢠ࣮࣭⎔ቃᢏ⾡◊✲఍㸦࢜ࣥࣛ࢖ࣥ㛤ദ㸧㸪7-022㸪2021ᖺ3᭶5㹼11᪥55ู⣬ᵝᘧ㸰㸫㸰

Q-Learning ࢆ⏝࠸ࡓ PMSG 㢼ຊⓎ㟁ᶵࡢࣃ࣓࣮ࣛࢱྠᐃ
Parameter identification of PMSG wind turbines using Q-Learning༓ఫᬛಙ࣭⌰⌫኱Ꮫ࣭ᕤᏛ㒊࣭ᩍᤵᾆᓮ┤ග࣭⌰⌫኱Ꮫ࣭ᕤᏛ㒊࣭ᩍᤵ⯅㑣⠜ྐ࣭⌰⌫኱Ꮫ࣭ᕤᏛ㒊࣭ຓᩍ⯚ᶫಇஂ࣭⌰⌫኱Ꮫ࣭ᕤᏛ㒊࣭㠀ᖖ໅ㅮᖌຍ⸨୔ె࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ࣭ᩍᤵ㸯㸬◊✲┠ⓗCO2 ➼ࡢ

ᐊຠᯝ࢞ࢫࡢ኱㔞᤼ฟࡀཎᅉ

࡜ࡉࢀࡿᆅ⌫ ᬮ໬ࡀၥ㢟࡜࡞ࡗ࡚࠸ࡿ㸬ࡑࡢᑐ⟇࡜ࡋ࡚㸪ᅛᐃ౯᱁㈙࠸ྲྀࡾไᗘ
(FIT : Feed-in Tariff)㸪ࣃࣜ༠ᐃ㸪࢚ࢿࣝࢠ࣮ᇶᮏィ⏬ࡀ⟇ᐃࡉࢀ㸪 ᣢ⥆ྍ⬟࡞㛤Ⓨ┠ᶆ(SDGs : Sustainable Development Goals)ࡸ࣮࢝࣎ࣥࢽ࣮ࣗࢺࣛࣝ➼ࡢᨻ⟇ⓗᙳ㡪࠿ࡽኴ㝧ගⓎ㟁ࡸ㢼ຊⓎ㟁ᶵ࡞࡝ࢆ฼⏝ࡋࡓ෌⏕ྍ⬟࢚ࢿࣝࢠ࣮Ⓨ㟁ࢩࢫࢸ࣒ࡢ
ᑟධ㔞ࡀቑຍࡋ࡚࠸ࡿ[1̽4]㸬㢼ຊ࢚ࢿࣝࢠ
࣮Ⓨ㟁ࢩࢫࢸ࣒ࡣ㸪ྍኚ㏿㢼ຊⓎ㟁ࢩࢫࢸ࣒ࡀ୺ὶ࡜࡞ࡗ࡚࠾ࡾ㸪Ọஂ☢▼ྠᮇⓎ㟁
ᶵ(PMSG : Permanent Magnet Synchronous
Generator) ࡀ᥇⏝ࡉࢀ࡚࠸ࡿ㸬PMSG ࢆ⏝࠸ࡓྍኚ㏿㢼ຊⓎ㟁ࢩࢫࢸ࣒ࡣ㸪ቑ㏿ᶵ㸪 ບ☢ࢩࢫࢸ࣒ࢆ⏝࠸࡞࠸ప㏿ᅇ㌿࡛࠶ࡿࡓࡵ㦁㡢ࡀᑡ࡞࠸࡜࠸࠺฼Ⅼ࠿ࡽᬑཬࡀᣑ኱ࡋ
࡚࠸ࡿ㸬㢼ຊⓎ㟁ᶵࡣ㸪㢼㏿࡟ᛂࡌ࡚᭱኱ฟຊ㟁ຊࢆᚓࡿࡇ࡜ࡢ࡛ࡁࡿᅇ㌿㏿ᗘࡀኚ໬ࡍࡿ㸬ࡇࡢᅇ㌿㏿ᗘ࡟ࡋࡓࡀࡗ࡚㢼ຊⓎ㟁ᶵࢩࢫࢸ࣒ࡢไᚚࢆ⾜࡞࠺ࡇ࡜ࢆ᭱኱㟁ຊⅬ㏣ᚑไᚚ(MPPT: Maximum Power Point Tracking)࡜࠸࠺㸬ࡋ࠿ࡋ㸪㢼ຊⓎ㟁ᶵࡢࣔࢹࣝ࡟
ࡼࡿࣃ࣓࣮ࣛࢱㄗᕪࡸ⤒ᖺຎ໬࡟ࡼࡾ㢼ຊⓎ㟁ᶵ≉ᛶࡀኚ໬ࡋࡓሙྜ㸪 ࠶ࡽ࠿ࡌࡵ⟬ฟࡉࢀࡓ᭱኱㟁ຊⅬࡀኚ໬ࡍࡿ㸬ࡑࡢࡓࡵ㸪᪤Ꮡࡢไᚚࢩࢫࢸ࣒࡛ࡣ᭱኱ฟຊ㟁ຊࢆᚓࡿࡇ࡜ࡀ࡛ࡁ࡞ࡃ࡞ࡿ㸬ࡑࡇ࡛ᮏ◊✲࡛ࡣ㸪Deep Q-Network(DQN) ࡟ࡼࡿࣃ࣓࣮ࣛࢱྠᐃࢆ⏝࠸ࡓ᭱㐺ࢺࣝࢡไᚚ࡟࠾ࡅࡿࣃ࣓࣮ࣛࢱ㹩ࡢྠᐃᡭἲࢆᥦ᱌ࡍࡿ㸬ᥦ᱌ᡭἲࡢ᭷ຠᛶࡣ
MATLAB/Simulink ࠾ࡼࡧ Reinforcement Learning Toolbox ࡟ࡼࡗ᳨࡚ドࡉࢀࡿ㸬㸰㸬◊✲ෆᐜ࡜ᡂᯝ
ࠓ◊✲ᴫせࠔࢩ࣑࣮ࣗࣞࢩ࡛ࣙࣥࡣ୕ᯛ⩼Ỉᖹ㍈ᆺ 306* 㢼ຊⓎ㟁ࢩࢫࢸ࣒࡟࠾ࡅࡿࣃ
࣓࣮ࣛࢱྠᐃ࡟ࡘ࠸᳨࡚ドࡋࡓ ᳨ウࡍࡿⓎ㟁ࢩࢫࢸ࣒ᵓᡂࢆᅗ 1 ࡟♧ࡍ. ࡲࡓ㸪ไᚚ

56

ࢩࢫࢸ࣒ࢆᅗ 2 ࡟♧ࡍ㸬 DQN ࡛౑⏝ࡉࢀࡿሗ㓘ᘧࢆ㸪ࢺࣝࢡ೫ᕪࢆ⏝࠸࡚௨ୗ࡟♧ࡍ㸬(ܶ௥௔௧௘ ൑ ܶ௪ )‫ ۓ‬െ100
ۖ െ1( ܶଵ ൑ ܶௗ௜௙ )‫=ݎ‬(ܶଶ < ܶௗ௜௙ < ܶଵ )‫۔‬1
ۖ5
( ܶௗ௜௙ ൑ ܶଶ )‫ە‬ࡇࡇ࡛㸪ܶௗ௜௙ ࡣ᭱㐺ࢺࣝࢡ࡜㢼㌴ࢺࣝࢡࡢ೫ᕪ㸪ܶ௪ ࡣ㢼㌴ࢺࣝࢡ㸪ܶ௥௔௧௘ ࡣᐃ᱁㢼
㌴ࢺࣝࢡ(8.6 × 10ହ [Nm])࡛࠶ࡾ㸪ܶଵ =0.3 × 10ହ[Nm]㸪ܶଶ = 0.1 × 10ହ [Nm] ࡜ࡍࡿ㸬㢼㌴ࢺࣝࢡࢆほࡋ㸪ᅇ㌿㏿ᗘ㸪᭱኱ࢺࣝࢡࡢไ⣙ࢆタࡅࡿࡇ࡜࡛㸪ྠᐃ࡟ࡼࡿᏛ⩦᫬ࡢ㢼ຊⓎ㟁ࢩࢫࢸ࣒࡟ᑐࡍ
ࡿᝏᙳ㡪ࢆᢚไࡍࡿ㸬ྠᐃࢆ⾜࠺㢼㌴ࡢ᭱㐺ࣃ࣓࣮ࣛࢱ k=175943 ࢆ┿್࡜ࡋ࡚ࢩ࣑࣮ࣗࣞࢩࣙࣥ㛤ጞ᫬࡟ㄗᕪࢆ୚࠼
ࡿ㸬ᮏ◊✲࡛ࡣ᭱㐺ࣃ࣓࣮ࣛࢱ࡟+53%,+25%, -43%, -71%ࡢㄗᕪࡀ⏕ࡌ࡚࠸ࡿሙ
ྜࢆ⪃࠼᳨ドࡋࡓ㸬ࠓࢩ࣑࣮ࣗࣞࢩࣙࣥ⤖ᯝࠔ ࢩ࣑࣮ࣗࣞ
ࢩ࡛ࣙࣥࡣࣃ࣓࣮ࣛࢱྠᐃ࡜ྠᐃᡭἲ
࡟ࡼࡿ㢼ຊⓎ㟁ࢩࢫࢸ࣒ࡢ㐠㌿࡟ࡘ࠸᳨࡚ドࡋࡓ. ᅗ 3 ࡟♧ࡍ㢼㏿ࢆ⏝࠸ࡓࢩ࣑࣮ࣗࣞࢩࣙࣥ⤖ᯝ࡜ࡋ࡚㸪ᅗ㸲࡟ᅇ㌿ᩘ㸪ᅗ 5 ࡟ฟຊಀᩘ㸪ᅗ㸴࡟ྠᐃ㐣⛬ࢆ♧ࡍ㸬 ྠᐃ್ࡀ┿್࡟㏆࡙ࡃ࡯࡝ࡼࡾᅇ㌿ᩘࡀᣦ௧್ࢆ㏣ᚑࡋ࡚࠾ࡾ㸪ฟຊಀᩘࡢୖ᪼ࡀ☜ㄆ࡛ࡁࡿ. ௨ୖࡢࢩ࣑࣮ࣗࣞࢩࣙࣥ⤖ᯝࡼࡾᥦ᱌ᡭἲࢆ⏝࠸ࡿࡇ࡜࡟ࡼ
ࡿ㢼ຊⓎ㟁ᶵࡢࣃ࣓࣮ࣛࢱㄗᕪࡸ⤒ᖺຎ໬࡟ࡼࡿฟຊ≉ᛶࡢኚ໬࡟ᑐᛂࡋࡓไᚚࡀ☜ㄆࡉࢀࡓ㸬࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ᅜ㝿࣭ᅜෆ఍㆟㸼㧘ᶫᏹ㍜, ༓ఫᬛಙ, ຍ⸨୔ె, Deep-Q-Network ࢆ⏝࠸ࡓ PMSG 㢼ຊⓎ㟁ࢩࢫࢸ࣒ࡢ࢜ࣥ
ࣛ࢖ࣥࣃ࣓࣮ࣛࢱྠᐃ, ௧࿴ 2 ᖺᗘ㟁ẼᏛ఍஑ᕞᨭ㒊Ἀ⦖ᨭᡤㅮ₇఍, ⌰⌫኱Ꮫ, 2020 ᖺ
12 ᭶ 12 ᪥.

㸺⏘ᴗ㈈⏘ᶒ㸼ฟ㢪ணᐃࡣ࡞࠸.

57

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58

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v6)ßL=?(&3 3+9Þ¨Kcv+Þ<Þ¢ÄÎµÏÌ_L!>Dß


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F7?(G
D1% Þ8)@Þ9Þ+E9Þ/]Kc¶¿+§ w{ug×¹vÞj*?(Ö Þ  Þ ÞßÜ Ý59ู⣬ᵝᘧ㸰㸫㸰ືⓗ࡞㟁ຊ๭ࡾᙜ࡚࡟ࡼࡿ኱つᶍ࡞㟁Ẽࣂࢫ඘㟁᭱㐺໬
Large scale electric buses charging optimization with dynamic power allocation๽㘜࣭኱㐃⌮ᕤ኱Ꮫ࣭஺㏻㐠㍺Ꮫ㝔࣭ᩍᤵᒣᮏಇ⾜࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ࣭ᩍᤵ㧗⹿࣭኱㐃⌮ᕤ኱Ꮫ࣭஺㏻㐠㍺Ꮫ㝔࣭኱Ꮫ㝔⏕㸦ಟኈ㸧㯤᠈࣭኱㐃⌮ᕤ኱Ꮫ࣭஺㏻㐠㍺Ꮫ㝔࣭኱Ꮫ㝔⏕㸦ಟኈ㸧㸯㸬◊✲┠ⓗ㸦SW ࢦࢩࢵࢡయ㸧ᮏඹྠ฼⏝࣭ඹྠ◊✲ㄢ㢟ࡢ◊✲┠ⓗ࡟ࡘࡁ㸪グ㏙ୗࡉ࠸ࠋ㸦11pt ᫂ᮅయ㸧The large scale operated electric buses will lead to complicated charging issues, which relate
to both infrastructures location and their operation efficiency. An interdisciplinary study to
optimize both the charging strategies and their charging efficiency, especially considering
jointly the bus service system and power grid, is urgently required. This project will develop andcompare several charging strategies with dynamic power allocation algorithms, which will
provide better understanding on the green bus systems with uncertain transportation demands
and energy supply.

㸰㸬◊✲ෆᐜ࡜ᡂᯝ㸦SW ࢦࢩࢵࢡయ㸧 ᙜヱᖺᗘ࡟ᐇ᪋ࡋࡓ◊✲ෆᐜ࡜ࡑࡢᡂᯝ࡟ࡘࡁ㸪グ㏙ୗࡉ࠸ࠋ㸦11pt ᫂ᮅయ㸧
࣭ The charging optimization problem for a large-scale fleet of electric buses is studied. The
problem is to develop charging strategies to reduce the charging cost for the electric buses
served given their operating times and charging station capacity. We propose acolumn-generation-based model (CGM) to solve this problem. The model consists of amaster problem for selecting a charging strategy for each bus and subproblems forgenerating strategies. The resource limitations of the charging station are explicitly
considered in the master problem. The constraints of vehicle operating time, charging power
demands and the continuity of the charging process are addressed in the subproblems. The
master problem and the subproblems continue to be iteratively solved until the optimal
solution is found, thus avoiding an excessively slow calculation speed due to the generationof all charging strategies. Based on real operation data for electric buses in Zhengzhou city,
the test results of four scenarios show that the base model (BM) has difficulty obtaining the
optimization results with the increase in bus fleet scale. Moreover, the CGM has significant
advantages both in running time and in the output optimal charging strategies, which
provides a high utilization rate of charging resources, offering an efficient and practicalsolution for application to large-scale charging optimization problems.
࣭ 濧he deterministic model and the robust model with probability-free uncertainty set are

60

further proposed to solve the charging optimization problem of electric bus. In our models,
the time-of-use electricity price, the limited charging resources of the charging station,
including the total charging power and the number of charging guns, charging continuity andother factors are fully considered to reasonably optimize the charging power and timing of
the electric bus to ensure the operation demand of the electric bus. We implement acolumn-generation-based algorithm to solve the robust model, which decomposes theoriginal problem into a master problem and several independent sub-problems. Taking theactual operation data of Zhengzhou, China as a numerical example, the validity of thedeterministic model and the robust model is verified. The results show that the optimal
charging strategy obtained by the deterministic model improves the utilization rate ofcharging resources and reduces the charging cost by 47.58% compared with the disorderedcharging strategy. The proposed robust model can effectively deal with the problems of low
electric quantity and delayed departure caused by uncertain energy consumption.

࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸦SW ࢦࢩࢵࢡయ㸧࣭ Irfan Ullah, Kai Liu, Toshiyuki Yamamoto, Muhammad Zahid, and Arshad Jamal. Electricvehicle energy consumption prediction using stacked generalization: an ensemble learning
approach, International Journal of Green Energy, 2021.
࣭ Liu, K., Gao, H., Liang, Z., Zhao, M. and Li, C. A column-generation-based model forelectric bus charging time and power optimization considering the real bus schedule.
Submitted to Transportation Research part E.
㸺ᅜ㝿࣭ᅜෆ఍㆟㸼㸦11pt ᫂ᮅయ, Times㸧࣭ None.
㸺⏘ᴗ㈈⏘ᶒ㸼࣭None61ู⣬ᵝᘧ㸰㸫㸰ே㐨ᨭ᥼ࣟࢪࢫࢸ࢕ࢡࢫ࡟ᑐࡍࡿືᏛⓗ࡞᭱㐺ไᚚᡭἲ
Optimal dynamic control of humanitarian logistics஭ᩱ㝯㞞࣭ᮾ໭኱Ꮫ኱Ꮫ㝔࣭᝟ሗ⛉Ꮫ◊✲⛉࣭ᩍᤵἙ℩⌮㈗࣭ᮾ໭኱Ꮫ኱Ꮫ㝔࣭᝟ሗ⛉Ꮫ◊✲⛉࣭኱Ꮫ㝔⏕㸦༤ኈㄢ⛬ᚋᮇㄢ⛬㸧ᒣᮏಇ⾜࣭ྡྂᒇ኱Ꮫᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ࣭ᩍᤵ 㸯㸬◊✲┠ⓗ ᨭ᥼≀㈨ࡢ㎿㏿࡛ⓗ☜࡞㓄㏦ࢆ┠ⓗ࡜ࡍࡿே㐨ᨭ᥼ࣟࢪࢫࢸ࢕ࢡࢫ㸦HL㸧ࡣ㸪⅏ᐖᚋࡢ஧ḟⓗ࡞⿕ᐖࢆ᭱ᑠ㝈࡟ᢚ࠼ࡿࡢ࡟㔜せ࡞ᙺ๭ࢆᯝࡓࡍ㸬⿕⅏ᆅ࠿ࡽࡢせㄳࢆᚅࡓࡎ࡟≀㈨ࢆ㓄㏦ࡍࡿࣉࢵࢩࣗᆺ࡜㸪せㄳ࡟ᛂࡌࡓ≀㈨ࢆ㓄㏦ࡍࡿࣉࣝᆺࢆ⤌ྜࡏࡓไᚚᡓ
␎ࡣ㸪ࡼࡾࡼ࠸ HL ࢆᐇ⌧ࡍࡿ୍ࡘࡢ⟅࠼࡛࠶ࢁ࠺㸬ࡋ࠿ࡋ㸪ືᏛⓗ࡞᚟ᪧ࣐ࢿࢪ࣓ࣥ

ࢺࢆຍ࿡ࡋ࡞࠸㸪㐣ཤࡢ⤒㦂ⓗ▱ぢࡢࡳ࡟ᇶ࡙ࡃ࢔ࢻ࣍ࢵࢡ࡞ไᚚᡓ␎ࡣ㸪ពᅗࡋ࡞࠸
ᣲື㸦e.g.,≀㈨ࡢᴟ➃࡞೫ࡾ㸧ࢆᣍࡁ࠿ࡡ࡞࠸㸬ᮏ◊✲࡛ࡣ㸪᚟ᪧ≧ἣ࡟ᛂࡌࡓ᭱㐺࡞≀ὶไᚚࣟࢪࢵࢡࢆゎ᫂ࡍࡿࡇ࡜ࢆ┠ⓗ࡜ࡍࡿ㸬ࡇࢀ࡟ࡼࡾ㸪ືᏛⓗ࡞≀ὶไᚚᡭἲࡢ
⌮ㄽᇶ┙ࡀᵓ⠏ࡉࢀ㸪⅏ᐖᑐᛂ࡟ᑐࡍࡿᐃ㔞ⓗ࡞▱ぢࢆᥦ౪࡛ࡁࡿ㸬㸰㸬◊✲ෆᐜ࡜ᡂᯝ ➨୍࡟㸪㐣ཤࡢ⅏ᐖ࡟࠾ࡅࡿ≀㈨ᨭ᥼άືࢆᩚ⌮ࡋ㸪HL ࡢᨵၿ᪉㔪ࡸศᯒࡍ࡭ࡁ◊✲ࢽ࣮ࢬࢆ♧ࡋࡓ㸬ලయⓗ࡟ࡣ㸪ᮾ᪥ᮏ኱㟈⅏㸦2011 ᖺ㸧࡜⇃ᮏᆅ㟈㸦2016 ᖺ㸧࡟࠾ࡅࡿ≀㈨ᨭ᥼άືࢆẚ㍑ࡋࡓ㸬ࣉࢵࢩࣗᆺᡓ␎ࡣ⇃ᮏᆅ㟈࡛ึࡵ࡚ᐇ᪋ࡉࢀࡓࡓࡵ㸪ࡇࡢ஧ࡘࡢ㟈⅏࡟࠾ࡅࡿ≀㈨ᨭ᥼άືࡢẚ㍑࡟ࡼࡗ࡚㸪ࣉࢵࢩࣗᆺᡓ␎ࡢຠᯝࡸᨵၿ᪉㔪ࡀ᫂ࡽ࠿࡟࡞ࡿ㸬ලయⓗ࡟ࡣ㸪ḟࡢ 4 ࡘࡢᨵၿ᪉㔪ࢆ♧ࡋࡓ㸬ձࣉࢵࢩࣗᆺᡓ␎ࡣ⅏ᐖ┤ᚋࡢ≀㈨୙㊊ࢆ᭱ᑠ㝈࡟␃ࡵࡓࡀ㸪㛗ᮇ໬ࡋࡓࡓࡵ኱㔞ࡢవ๫≀㈨ࢆᣍ࠸ࡓ㸬㛗ᮇ໬ࢆᅇ㑊ࡍࡿࡓࡵ࡟ࡣ㸪㞟✚ᡤೃ⿵ࡢࣜࢫࢺ࢔ࢵࣉࡀᚲせ࡛࠶ࡿ㸬ղ⿕⅏ᆅෆࡢ≀ὶᣐⅬࡣ≀ὶ⬟ຊࡀపୗࡍࡿࡓࡵ㸪࣎ࢺࣝࢿࢵࢡ࡜࡞ࡿྍ⬟ᛶࡀ㧗࠸㸬⿕⅏ᆅእࡢ≀ὶᣐⅬ࡟࠾ࡅࡿ≀㈨ࡢ௙ศࡅࡸ㸪㑊㞴ᡤ࡬ࡢ┤᥋㓄㏦࡟ࡼࡿ㈇ᢸ㍍ῶ⟇ࡀḞ࠿ࡏ࡞࠸㸬ճ㎿㏿࡟≀㈨ࢆᒆࡅࡿୖ࡛᭱኱ࡢ࣎ࢺࣝࢿࢵࢡࡣࣛࢫࢺ࣐࣡ࣥ࢖ࣝ㍺㏦࡛࠶ࡿ㸬⇃ᮏᆅ㟈࡛ࡣ㸪
஺㏻῰⁫ࡀ㓄㏦ࡢ㐜ࢀࢆࡶࡓࡽࡋࡓ㸬஺㏻࡜ HL ࡢ┦஫స⏝ࢆ⪃៖ࡋࡓศᯒࡀᛴົ࡛࠶
ࡿ㸬մ㏻ಙ࢖ࣥࣇࣛࡀ᚟ᪧࡋࡓ࡜ࡋ࡚ࡶ㸪᝟ሗఏ㐩⤒㊰ࡀ」㞧࡛࠶ࡿሙྜ㸪せㄳ₃ࢀࡸ
㔜」せㄳࢆᘬࡁ㉳ࡇࡍ㸬㏻ಙ࢖ࣥࣇࣛࡢ᚟ᪧ࡟ᛂࡌࡓࣉࣝᆺᨭ᥼࡬ࡢ᭱㐺࡞ษ᭰᫬ᮇࡢ
ゎ᫂ࡀ୙ྍḞ࡛࠶ࡿ㸬 ➨஧࡟㸪ୖグࡢ⤒㦂ⓗ▱ぢࢆ㋃ࡲ࠼࡚㸪ࣉࢵࢩࣗᆺᡓ␎ࡢ᭱㐺࡞ไᚚࣟࢪࢵࢡࢆศᯒ
ࡋࡓ㸬ලయⓗ࡟ࡣ㸪ᅗ 1 ࡟♧ࡍࡼ࠺࡞ከ㝵ᒙࢿࢵࢺ࣮࣡ࢡ࡟࠾࠸࡚㸪͆ᆅᇦ≀ὶᣐⅬࢆ⤒⏤ࡋ࡚ẁ㝵ⓗ࡟≀㈨ࢆ㓄㏦ࡍࡿ multi-tiered ࢔ࣉ࣮ࣟࢳ͇ࡶࡋࡃࡣ͆ᗈᇦ≀ὶᣐⅬ࠿ࡽ 㑊 㞴 ᡤ ࡟ ┤ ᥋ ≀ ㈨ ࢆ 㓄 ㏦ ࡍ ࡿ direct ࢔ ࣉ ࣟ ࣮ ࢳ ͇ ࢆ ᥇ ⏝ ࡍ ࡭ ࡁ

62

⿕⅏ᆅᇦ

㠀⿕⅏ᆅᇦ
᭱ୖᒙ:ᗈᇦ≀ὶᣐⅬ୰㛫ᒙ:ᆅᇦ≀ὶᣐⅬඛ⾜◊✲䛾䝸䞁䜽

᭱ୗᒙ䠖㑊㞴ᡤᣑᙇ䝸䞁䜽ᅗ 1 ⅏ᐖ᫬ࡢࣟࢪࢫࢸ࢕ࢡࢫࢿࢵࢺ࣮࣡ࢡࡢᵓ㐀⿕⅏᮲௳ཬࡧࡑࡢ᚟ᪧ㐣⛬ࢆ᫂ࡽ࠿࡟ࡋࡓ㸬ࡇࢀࡣᨵၿ᪉㔪ղ࡟ᑐࡋ࡚ᐃ㔞ⓗ࡞▱ぢࢆᥦ౪ࡍࡿ㸬≀ὶᣐⅬ࠿ࡽࡢ㓄㏦㔞࠾ࡼࡧ≀ὶᣐⅬࡸ㑊㞴ᡤ࡟࠾ࡅࡿᅾᗜ㔞ࡢ᭱㐺࡞ไᚚࣟࢪࢵࢡࢆồࡵࡿࡓࡵ࡟☜⋡ⓗືᏛ᭱㐺໬ၥ㢟ࢆᐃᘧ໬ࡋࡓ㸬ࡲࡓ㸪᭱㐺ไᚚ⌮ㄽ࡜ศゎἲࢆ㐺⏝ࡍࡿࡇ࡜࡛㸪᭱㐺࡟㏆࠸ゎࡢ㛢ᙧᘧࢆᑟฟࡋࡓ㸬 ࡑࡢゎࢆศᯒࡋࡓ⤖ᯝ㸪direct࢔ࣉ࣮ࣟࢳࡀඃࢀࡓᛶ⬟ࢆⓎ᥹ࡍࡿ≧ἣࡀ⅏ᐖ᫬࡟ ࠎ࡟ࡋ࡚Ⓨ⏕ࡍࡿࡇ࡜ࡀ᫂ࡽ࠿
࡟࡞ࡗࡓ㸬ࡲࡓ㸪direct ࢔ࣉ࣮ࣟࢳࢆಁ㐍ࡍࡿࡼ࠺࡟ࢿࢵࢺ࣮࣡ࢡࢆ᚟ᪧࡍࡿࡇ࡜ࡀ㸪ே㐨ᨭ᥼ࣟࢪࢫࢸ࢕ࢡࢫ࡟Ⰻ࠸ᙳ㡪ࢆ୚࠼ࡿࡇ࡜ࢆゎᯒⓗ࡟♧ࡋࡓ㸬࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ཎⴭㄽᩥ㸼࣭ Ἑ℩⌮㈗㸪ᾆ⏣῟ྖ㸪஭ᩱ㝯㞞㸪⅏ᐖ᫬࡟࠾ࡅࡿே㐨ᨭ᥼ࣟࢪࢫࢸ࢕ࢡࢫࡢᅾࡾ᪉㸸ᮾ᪥ᮏ኱㟈⅏࡜⇃ᮏᆅ㟈ࡢࢣ࣮ࢫࢫࢱࢹ࢕㸪ᅵᮌᏛ఍ㄽᩥ㞟 D3㸦ᅵᮌィ⏬Ꮫ㸧㸪Vol.76㸪
No.5㸪2021㸦in press㸧㸬㸺ᅜ㝿࣭ᅜෆ఍㆟㸼࣭Ἑ℩⌮㈗㸪஭ᩱ㝯㞞㸪⅏ᐖ᫬ࡢከ㝵ᒙࣟࢪࢫࢸ࢕ࢡࢫࢿࢵࢺ࣮࣡ࢡ࡟࠾ࡅࡿ᭱㐺࡞☜⋡ⓗᅾᗜ㓄㏦ᡓ␎ࡢᥦ᱌㸪➨ 62 ᅇᅵᮌィ⏬Ꮫ◊✲Ⓨ⾲఍㸪࢜ࣥࣛ࢖ࣥ㸪2020 ᖺ 11
᭶ 13 ᪥㹼15 ᪥㸬㸺⏘ᴗ㈈⏘ᶒ㸼࣭≉࡟࡞ࡋ㸦ὀ㸧ู⣬ᵝᘧ㸰㸫㸯ࡣ㸿㸲ࢧ࢖ࢬ㸯㡫࡟ࠊู⣬ᵝᘧ㸰㸫㸰ࡣᅗ⾲➼ࢆྵࡵ࡚㸿㸲ࢧ࢖ࢬ㸰㡫࡟࡞ࡿࡼ࠺࡟ࡋ࡚ࡃࡔࡉ࠸ࠋ

63ู⣬ᵝᘧ㸰㸫㸰

ከᏍ㉁ࢭ࣑ࣛࢵࢡࢆ⏝࠸ࡓపࢱ࣮ࣝࣂ࢖࣐࢜ࢫ࢞ࢫ໬
ࣉࣟࢭࢫࡢ㛤Ⓨ
Development of biomass gasification process for low tar emission by porous ceramics
ᑠᯘ ₶࣭ᕤᏛ㝔኱Ꮫ࣭ᕤᏛ㒊ᶵᲔᕤᏛ⛉࣭ᩍᤵᡂ℩ ୍㑻࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ࣭ᩍᤵ㸯㸬◊✲┠ⓗ ෌⏕ྍ⬟࢚ࢿࣝࢠ࣮ࡢ୍ࡘ࡛࠶ࡿࣂ࢖࣐࢜ࢫ࢚ࢿࣝࢠ࣮ࡢ㧗ຠ⋡฼⏝ࢆᅗࡿୖ࡛㸪⇕ศゎ࢞ࢫ໬࡟ࡼࡿẼయ⇞ᩱ໬ࡣ᭷ຠ࡞ᡭἲ࡛࠶ࡾ㸪ࡇࢀࡲ࡛ᩘከࡃࡢ᳨ウࡀ࡞ࡉࢀ࡚࠸
ࡿ㸬ᙜヱᢏ⾡ࡢㄢ㢟࡜ࡋ࡚㸪๪⏕ᡂ≀࡛࠶ࡿ㧗ἛⅬⅣ໬Ỉ⣲ᡂศࢆྵࡴࢱ࣮ࣝࡢΰධࡀ
ୖࡆࡽࢀ㸪ࡇࢀࡽࡢᢚไ࡟ࡼࡾ⇞ᩱ㟁ụⓎ㟁ࡸ࢞ࢫࢱ࣮ࣅ࣭ࣥ⵨Ẽࢱ࣮ࣅࣥࢥࣥࣂ࢖ࣥ
ࢻࢩࢫࢸ࣒࡞࡝㧗ຠ⋡࢚ࢿࣝࢠ࣮ኚ᥮ࣉࣟࢭࢫ࡬ࡢᒎ㛤ࡀྍ⬟࡜࡞ࡿ㸬ᮏ◊✲࡛ࡣ㸪⇕ศゎ࢞ࢫ໬㐣⛬࡟࠾ࡅࡿ in situ ࢱ࣮ࣝ㝖ཤᡭἲ࡜ࡋ࡚ከᏍ㉁ࢭ࣑ࣛࢵࢡࢆ⏝࠸ࡓ྾╔ศ㞳࣭ศゎ㝖ཤࢆᥦ᱌ࡋ㸪㐺⏝ࡍࡿከᏍ㉁ࢩࣜ࢝ࡢ≀⌮ⓗ࠾ࡼࡧ໬Ꮫⓗ≉ᛶࡀࢱ࣮ࣝ㝖ཤ≉ᛶ࡟ཬࡰࡍᙳ㡪࡟ࡘ࠸࡚ᐇ㦂ⓗ᳨ウࢆ⾜࠺㸬㸰㸬◊✲ෆᐜ࡜ᡂᯝ ᙜヱᖺᗘࡣࢥࣟࢼ⚝ࡢ≧ἣୗ࡜࠸࠺ࡇ࡜ࡶ࠶ࡾ㸪ᐇ㦂ⓗᡭἲ࡟ࡼࡿ◊✲ࡢ㐙⾜ࡣᅔ㞴࡛࠶ࡿ࡜ุ᩿ࡋ㸪ᩘ್ゎᯒ࡟ࡼࡿ᳨ウࢆ୰ᚰ࡟ᐇ᪋ࡋࡓ㸬ලయⓗ࡟ࡣ㸪ࢲ࢘ࣥࢻࣛࣇࢺ
࢞ࢫ໬⅔ࡢᩘ್ゎᯒ࠾ࡼࡧ཯ᛂศᏊືຊᏛィ⟬࡟ᇶ࡙ࡃࣂ࢖࣐࢜ࢫࡢ⇕ศゎ࢞ࢫ໬཯ᛂᣲືホ౯ࢆ⾜ࡗࡓ㸬࢞ࢫ໬⅔ࡢᩘ್ゎᯒ࡟ࡘ࠸࡚ࡣ㸪᫖ᖺᗘసᡂࡋࡓ࢞ࢫ໬⅔ࡢᐇ㦂᮲௳࡟ᇶ࡙ࡁ㸪㸯ሪศࡢࡳࢲ࢘ࣥࢻࣛࣇࢺᆺ࡛ィ⟬ࢆ⾜ࡗ࡚࠸ࡿ㸬ࡓࡔࡋ㸪ࣂ࢖࣐࢜ࢫヨᩱࡢ౪⤥ࡣ⪃៖ࡏࡎᅛᐃᗋ࡟ᑐࡋ࡚ୖ㒊ࡼࡾ࢞ࢫ໬๣ࢆྵࡴ࢞ࢫࢆὶ㏻ࡉࡏࡓ᮲௳࡛ィ⟬ࢆ⾜ࡗ࡚࠸ࡿ㸬ィ⟬⤖ᯝࡢ୍౛ࢆᅗ 1 ࠾ࡼࡧ 2 ࡟♧ࡍ㸬

Fig. 1 CO concentration at the top and bottom of
fixed bed in downflow furnace

Fig. 2 Hydrogen concentration at the top andbottom of fixed bed in downflow furnace64࢞ࢫ໬๣࡜ࡋ࡚౪⤥ࡍࡿỈ⵨Ẽ㸸㓟⣲ẚ⋡ࢆኚ࠼ᩘ್ゎᯒࢆ⾜ࡗࡓ⤖ᯝ㸪ᐃᖖ≧ែ࡟࠾ࡅࡿ୍㓟໬Ⅳ⣲⃰ᗘࡣỈ⵨Ẽẚ⋡ࡢቑຍ࡟క࠸పୗࡍࡿࡀ㸪Ỉ⣲⃰ᗘࡣቑຍࡍࡿഴྥ
ࢆ♧ࡋࡓ㸬ࡇࢀࡣ୍⯡ⓗ࡞Ỉ⵨Ẽ࢞ࢫ໬ᨵ㉁ࡢᣲື࡜ྜ⮴ࡍࡿ㸬୍᪉㸪ᅛᐃᗋෆࡢ ᗘࡣ㧗ࡉ᪉ྥࡢ ᗘศᕸࡀ࡯࡜ࢇ࡝☜ㄆࡉࢀࡎ㸪ᐃᖖ≧ែ࡟࠾ࡅࡿ ᗘࡣ 400 K ⛬ᗘ࡜୍⯡ⓗ࡛ࡣ࡞࠸ ᗘࡲ࡛పୗࡍࡿ⤖ᯝ࡜࡞ࡾ㸪཯ᛂ㏿ᗘᘧࡢ ᗘ౫Ꮡᛶ࡟ࡘ࠸࡚ࡣ෌᳨ウࡍࡿᚲせࡀ࠶ࡿ࡜⪃࠼ࡽࢀࡿ㸬ḟ࡟㸪཯ᛂศᏊືຊᏛィ⟬࡟ࡼࡿࢭ࣮ࣝࣟࢫศᏊࡢ⇕ศゎ࢞ࢫ໬ᣲື࡟ࡘ࠸᳨࡚ウࢆ⾜ࡗࡓ⤖ᯝࢆ♧ࡍ㸬

Fig. 3  Formation behavior of organic
molecules at 1500 K

Fig. 4  Formation behavior of organic
molecules at 1500K with water

Fig. 5  Formation behavior of organic
molecules at 1500K with carbon
dioxideᅗ 3-5 ࡟ィ⟬⤖ᯝࡢ୍౛ࢆ♧ࡍ㸬1500 K ࡟࠾ࡅࡿ⇕ศゎ࢞ࢫ໬ᨵ㉁ᣲື࡟࠾࠸࡚ࡣ㸪཯ᛂ㛤ጞ┤ᚋ࠿ࡽⅣ⣲ᩘ 40 ௨ୖࡢ㧗ศᏊࡢศゎࡀ㏿ࡸ࠿࡟㐍⾜ࡋ㸪ࡑࢀ࡟క࠸పศᏊ
Ⅳ໬Ỉ⣲ࡀቑຍࡍࡿഴྥࡀ☜ㄆࡉࢀࡓ㸬ࡲࡓ㸪Ỉ⵨Ẽ㞺ᅖẼୗ࡜஧㓟໬Ⅳ⣲㞺ᅖẼୗ࡛
ẚ㍑ࡋࡓ⤖ᯝ㸪஧㓟໬Ⅳ⣲㞺ᅖẼୗࡢ᪉ࡀࡼࡾపศᏊ໬ࡀ㐍⾜ࡍࡿ஦ࡀ᫂ࡽ࠿࡜࡞ࡗࡓ㸬Ỉ⣲ࡸ୍㓟໬Ⅳ⣲➼ࡢ↓ᶵ࢞ࢫࡢ⏕ᡂᣲືࡶ☜ㄆࡋ࡚࠸ࡿࡀ㸪ࡇࡕࡽࡶ஧㓟໬Ⅳ⣲㞺ᅖẼࡢ⤖ᯝࡀ᭱ࡶ↓ᶵ࢞ࢫ⏕ᡂ㔞ࡀከࡃ࡞ࡿഴྥࢆ♧ࡋ㸪≉࡟Ỉ⣲⏕ᡂᣲື࡟࠾࠸࡚ᐇ㝿ࡢ⤖ᯝ࡜␗࡞ࡿഴྥࢆ♧ࡋࡓ㸬ࡇࡢⅬ࡟ࡘ࠸࡚ࡣ㸪ࡉࡽ࡟᳨ウࡀᚲせ࡛࠶ࡿ࡜⪃࠼ࡿ㸬࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ཎⴭㄽᩥ㸼࣭ ≉࡟࡞ࡋ
㸺ᅜ㝿࣭ᅜෆ఍㆟㸼࣭≉࡟࡞ࡋ㸺⏘ᴗ㈈⏘ᶒ㸼࣭≉࡟࡞ࡋ65ู⣬ᵝᘧ㸰㸫㸰

ࣂ࢖࢜࢞ࢫࢻࣛ࢖ࣜࣇ࢛࣮࣑ࣥࢢ⏝ᄇὶᒙࣉࣛࢬ࣐ࣜ࢔ࢡࢱ࣮ࡢ㛤Ⓨ
Development of Fluidized Bed Type Plasma Reactor for Bio-gas Dry-reformingᑠᯘ ಙ௓࣭ᒱ㜧኱Ꮫ࣭኱Ꮫ㝔ᕤᏛ◊✲⛉࣭෸ᩍᤵᡂ℩୍㑻࣭ྡྂᒇ኱Ꮫ ᮍ᮶ᮦᩱࢩࢫࢸ࣒◊✲ᡤ ࢩࢫࢸ࣒๰⏕㒊㛛࣭ᩍᤵ㸯㸬◊✲┠ⓗ CO ࡸ H2 ࡣᵝࠎ࡞ᕤᴗ〇ရࡢฟⓎཎᩱ࡛࠶ࡿࡇ࡜࠿ࡽࠊ⌧ᅾẚ㍑ⓗᏳ౯࡞࣓ࢱࣥࢆཎ
ᩱ࡜ࡋ࡚Ỉ⵨Ẽᨵ㉁ࡸࢻࣛ࢖ࣜࣇ࢛࣮࣑ࣥࢢ࡞࡝ᵝࠎ࡞཯ᛂࣉࣟࢭࢫࢆ⏝࠸࡚ᕤᴗⓗ࡟〇㐀ࡉࢀ࡚࠸ࡿࠋ≉࡟㏆ᖺ࡛ࡣ ᬮ໬࢞ࢫ࡛࠶ࡿ CO2 ࢆ᪂ࡓ࡞Ⅳ⣲㈨※࡜ࡋ࡚᭷ຠ฼
⏝ࡍࡿᢏ⾡ࡀὀ┠ࢆ㞟ࡵ࡚࠾ࡾࠊCO2 ࠿ࡽྜᡂ࢞ࢫࢆ⏕ᡂྍ⬟࡞ࢻࣛ࢖ࣜࣇ࢛࣮࣑ࣥࢢ
ࡀୡ⏺ⓗ࡟ࡶὀ┠ࢆ㞟ࡵ࡚࠸ࡿࠋ ࢻࣛ࢖ࣜࣇ࢛࣮࣑ࣥࢢ࡟㛵ࡍࡿࡇࢀࡲ࡛ࡢ◊✲㛤Ⓨࡣゐ፹㛤Ⓨࡀ୰ᚰ࡛ࠊᏳ౯࡞ Ni
ゐ፹࡟ࡘ࠸࡚ࡣⅣ⣲ᯒฟࡸ཯ᛂ

ᗘࡀ㧗

㸦850Υ㸧࡛࠶ࡿࡇ࡜ࡀㄢ㢟࡜࡞ࡗ࡚࠸ࡓࠋ

ࡋ࠿ࡋࠊ㏆ᖺ La: Ni/ZrO2 ゐ፹࡟㟁ሙࢆ༳ຍࡍࡿࡇ࡜࡟ࡼࡾⅣ⣲ᯒฟࡍࡿࡇ࡜࡞ࡃ㉸పୗ࡛ྜᡂ࢞ࢫࢆ⏕ᡂྍ⬟࡛࠶ࡿࡇ࡜ࡀ᫂ࡽ࠿࡟ࡉࢀ࡚࠸ࡿࠋࡓࡔࡋ౑⏝ࡉࢀ࡚࠸ࡿ඘
ሸᒙ࡟࠾࠸࡚ࡣゐ፹඘ሸ࡟ࡼࡾᅽຊᦆኻࡀ኱ࡁࡃ࡞ࡿࡇ࡜ࡸ཯ᛂ⿦⨨ෆࡢゐ፹ࡀᒁ㒊ⓗ࡟㧗 ࡟࡞ࡿࡇ࡜ࡀㄢ㢟࡜࡞ࡗ࡚࠸ࡓࠋ ࡑࡇ࡛ⴭ⪅ࡽࡣ඘ሸᒙࡢ௦ࢃࡾ࡟ὶືᒙࢆ฼⏝ࡋࡓὶືᒙࣉࣛࢬ࣐ࣜ࢔ࢡࢱ࣮ࡢ㛤Ⓨࢆ⾜ࡗࡓࠋᄇὶᒙࣉࣛࢬ࣐ࣜ࢔ࢡࢱ࣮ࡣゐ፹⢏Ꮚ࡜ࣉࣛࢬ࣐ࢆᆒ୍࡟᥋ゐࡉࡏࡿࡇ࡜
ࡀྍ⬟࡞⿦⨨࡛ࠊゐ፹࡜ࣉࣛࢬ࣐࠾ࡼࡧ཯ᛂ࢞ࢫࡢ᥋ゐ⋡ࡢྥୖ࡟క࠺཯ᛂ࢞ࢫ㌿᥮⋡ࡢྥୖࡶᮇᚅ࡛ࡁࡿࠋࡋ࠿ࡋ࡞ࡀࡽࠊᄇὶᒙࣉࣛࢬ࣐ࣜ࢔ࢡࢱ࣮ࢆ⏝࠸ࡓ DMR ࡟㛵ࡍࡿሗ࿌ࡣ࡞ࡃࠊࡲࡓࣉࣛࢬ࣐ࡢ↷ᑕࡀゐ፹ᛶ≧࡟୚࠼ࡿᙳ㡪࡟ࡘ࠸࡚ࡣ඲ࡃ᫂ࡽ࠿࡟ࡉ
ࢀ࡚࠸࡞࠸ࠋࡑࡢࡓࡵࠊᮏ◊✲࡛ࡣᄇὶᒙࣉࣛࢬ࣐ࣜ࢔ࢡࢱ࣮ࢆ⏝࠸࡚ప

DMR ᐇ㦂

ࢆᐇ᪋ࡍࡿ࡜࡜ࡶ࡟ࠊࣉࣛࢬ࣐ࡢ↷ᑕࡀゐ፹࡟୚࠼ࡿᙳ㡪࡟ࡘ࠸࡚ホ౯ࢆ⾜ࡗࡓࠋ㸰㸬◊✲ෆᐜ࡜ᡂᯝ
 Fig.1 ࡟ᮏᖺᗘ〇సࡋࡓᄇὶᒙ࡜ࣉࣛࢬ࣐ࢪ࢙
ࢵࢺࢆ⤌ࡳྜࢃࡏࡓᄇὶᒙࣉࣛࢬ࣐ࣜ࢔ࢡࢱ࣮
ࡢᴫ␎ᅗࢆ♧ࡍࠋᄇὶᒙࡣෆᚄ 60 mmࠊ㛗ࡉ 250
mm ࡢ▼ⱥ〇࡛ࠊ࢞ࢫᑟධ㒊ࡢෆᚄࡣ 12.6 mmࠊ
ࢸ࣮ࣃ࣮ゅࡣ 60r࡛࠶ࡿࠋ࢞ࢫᑟධ㒊࡟ࣉࣛࢬ࣐ࣀࢬࣝࢆᤄධࡋࠊࣉࣛࢬ࣐ࢪ࢙ࢵࢺ࡟ࡼࡗ࡚ᒙෆゐ፹⢏Ꮚࡢὶື໬ࢆ⾜ࡗࡓࠋ࢟ࣕࣜ࢔࢞ࢫ
࡟ࡣ࢔ࣝࢦࣥࢆ⏝࠸ࠊཎᩱ࢞ࢫ࡛࠶ࡿ࣓ࢱࣥ࠾
ࡼࡧ஧㓟໬Ⅳ⣲ࢆᯞ௜▼ⱥ⟶ࡼࡾ࢞ࢫࢆᢞධࡋ
Fig.1 Schematic diagram of spouted bed
plasma reactor

66㟁ᴟ㒊ࢆὶ㏻ࡉࡏࡿࡇ࡜࡛ࣉࣛࢬ࣐ࢆⓎ⏕ࡉࡏ࡚࠸ࡿࠋࡇࡇ࡛࢔ࣝࢦࣥ࢞ࢫὶ㔞ࡣ 1.4
L/min ࡜ࡋࠊ࣓ࢱࣥ࠾ࡼࡧ஧㓟໬Ⅳ⣲ὶ㔞ࡣ 0.3 L/min ࡜ࡋࡓࠋ཯ᛂᚋࡢฟཱྀ࢞ࢫࡣᄇὶ
ᒙୖ㒊࠿ࡽࢧࣥࣉࣜࣥࢢࣂࢵࢡࢆ⏝࠸࡚ᅇ཰ࡋࠊ࣐࢖ࢡࣟ࢞ࢫࢡ࣐ࣟࢺࢢࣛࣇ࢕࣮࡟ࡼ
ࡿ࢞ࢫศᯒࢆ⾜ࡗࡓࠋ㟁ᴟ࡟ࡣ㧗࿘Ἴ㟁※ࢆ᥋⥆ࡋࠊ㟁ᅽࡣ 0̺12 kV ࡲ࡛ኚ໬ࡉࡏࠊ
࿘Ἴᩘࡣ 20 kHz ୍ᐃ࡜ࡋࡓࠋゐ፹࡟ࡣᕷ㈍ࡢ Ni ゐ፹ࡢ⢏ᚄ 1 mm ௨ୗ࡟ศ⣭ࡋࠊ౑⏝ࡋࡓࠋ ᐇ㦂࡛ࡣᄇὶᒙࣉࣛࢬ࣐ࣜ࢔ࢡࢱ࣮࡟ࡼࡿ࢞ࢫᨵ㉁ࡢ☜ㄆࢆ⾜ࡗࡓࠋFig.2 ࡟࣐࢖ࢡ
ࣟ GC ࡟ࡼࡿ࢞ࢫศᯒ⤖ᯝࢆ♧ࡍࠋᕥᅗࡣࣉࣛࢬ࣐ࡢࡳ࡛ཎᩱ࢞ࢫࢆὶ㏻ࡉࡏࡓ㝿ࡢฟཱྀ࢞ࢫࢆ♧ࡋ࡚࠾ࡾࠊྑᅗࡣ 250 Υ࡟࠾ࡅࡿฟཱྀ࢞ࢫ⤌ᡂࢆ♧ࡋ࡚࠸ࡿࠋᖖ

࡟࠾࠸࡚ࣉࣛࢬ࣐↷ᑕࡋࡓሙྜࠊ࢞ࢫᨵ㉁ࡣ☜ㄆࡍࡿࡇ࡜ࡣ࡛ࡁࡎධཱྀ࣭ฟཱྀ࢞ࢫ⃰ᗘࡢኚ໬ࡣࡲࡗࡓࡃぢࡽࢀ࡞࠿ࡗࡓࠋ୍᪉ࠊ250 Υ࡟᪼ ࡋࡓሙྜࠊᒙฟཱྀ࡟࠾࠸࡚Ỉ⣲࠾ࡼࡧ୍㓟໬Ⅳ⣲ࡢ⏕ᡂࡀ☜ㄆ࡛ࡁࠊὶືᒙࣉࣛࢬ࣐ࣜ࢔ࢡࢱ࣮࡟࠾࠸࡚ࡶ 250 Υࡢప໬࡟࠾࠸࡚ࡶ DMR ࡀྍ⬟࡛࠶ࡗࡓࠋ༳ຍ㟁ᅽࢆୖࡆࡿࡇ࡜࡛཰⋡ࡢྥୖࡶ☜ㄆࡉࢀࡓࠋ


Fig.2 Produced gas compositions (Left: Normal temp, Right: 250 Υ) ᮏᐇ㦂࡛ࡣࣉࣛࢬ࣐↷ᑕࡀゐ፹࡟࠾ࡼࡰࡍᙳ㡪ࢆ᫂ࡽ࠿࡟ࡍࡿࡓࡵࠊࣉࣛࢬ࣐↷ᑕ๓
ᚋࡢゐ፹ᛶ≧ࡢホ౯㸦⢏ᗘศᕸࠊ⾲㠃ほᐹ࠾ࡼࡧ XRD ゎᯒ㸧ࢆ⾜ࡗࡓࠋ⢏ᗘศᕸ࠾ࡼࡧ⾲㠃ほᐹࡢ⤖ᯝ࠿ࡽࠊࣉࣛࢬ࣐↷ᑕ࡟ࡼࡿ↝⤖ࡸ⁐⼥ࡣぢࡽࢀࡎࠊࡲࡓⅣ⣲ᯒฟࡶ☜ㄆࡉࢀ࡞࠿ࡗࡓࡇ࡜࠿ࡽࠊ኱Ẽᅽࣉࣛࢬ࣐ࢆ⏝࠸ࡓሙྜ࡟࠾࠸࡚ࡣࣉࣛࢬ࣐↷ᑕࡀゐ፹ࡢ≀⌮ⓗ⾲㠃ᵓ㐀࡟୚࠼ࡿᙳ㡪ࡣᴟࡵ࡚ᑠࡉ࠸ࡇ࡜ࡀศ࠿ࡗࡓࠋࡲࡓ XRD ࡢ⤖ᯝ࠿ࡽ໬Ꮫⓗᵓ㐀ኚ໬࡟୚࠼ࡿᙳ㡪ࡶᑠࡉ࠸ࡇ࡜ࡀ᫂ࡽ࠿࡜࡞ࡗࡓࠋ ᄇὶᒙࣉࣛࢬ࣐ࣜ࢔ࢡࢱ࣮࡟࠾࠸࡚ࡶ 250 Υ࡛࣓ࢱࣥ࡜஧㓟໬Ⅳ⣲ࡢᨵ㉁ࢆ☜ㄆࡍࡿࡇ࡜ࡀ࡛ࡁࠊࡲࡓᄇὶᒙࣉࣛࢬ࣐ࣜ࢔ࢡࢱ࣮࡟࠾࠸࡚ࡣ⢊໬ࡸゐ፹ຎ໬ࢆ᝿ᐃࡋ࡚࠸
ࡓࡶࡢࡢࠊᮏ◊✲ࡢ᮲௳ୗ࡟࠾࠸࡚ࡣࣉࣛࢬ࣐ࡢ↷ᑕࡀゐ፹ࡢ≀⌮ⓗ࣭໬Ꮫⓗᛶ≧࡟ཬࡰࡍᙳ㡪ࡣᴟࡵ࡚ᑠࡉ࠸ࡇ࡜ࡀ᫂ࡽ࠿࡜࡞ࡗࡓࠋ

࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ᅜ㝿࣭ᅜෆ఍㆟㸼࣭ ྜྷぢⰋኴ㸪ᑠᯘಙ௓, ⚄㇂᠇ඣ, ᯈ㇂⩏⣖, 㡲⥙ᬡ㸪ࣉࣛࢬ࣐ᄇὶᒙࢆ⏝࠸ࡓపࢻࣛ࢖࣓ࢱࣥࣜࣇ࢛࣮࣑ࣥࢢࡢ᳨ウ㸪➨ 26 ᅇὶື໬࣭⢏Ꮚࣉࣟࢭࢵࢩࣥࢢࢩ࣏ࣥࢪ࢘
࣒㸪࢜ࣥࣛ࢖ࣥ㛤ദ㸪2020 ᖺ 11 ᭶ 26 ᪥㹼27 ᪥.

67ู⣬ᵝᘧ㸰㸫㸰⏕≀㟁Ẽ໬Ꮫⓗ࡞❅⣲ᅛᐃಁ㐍ᢏ⾡㛤Ⓨ
Technical development for the bioelectrochemical promotion of nitrogen fixation.
⢖⏣㈗ᐉ࣭ᅜᅵᢏ⾡ᨻ⟇⥲ྜ◊✲ᡤ࣭ୗỈ㐨◊✲㒊࣭◊✲ᐁᐑ⏣ᗣྐ࣭ྡྂᒇᕷᕤᴗ◊✲ᡤ࣭ࣉࣟࢪ࢙ࢡࢺ᥎㐍ᐊ∦ᒣ᪂ኴ࣭ྡྂᒇ኱Ꮫᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ࣭ࢩࢫࢸ࣒๰⏕㒊㛛࣭ᩍᤵ➟஭ᣅဢ࣭ྡྂᒇ኱Ꮫᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ࣭ࢩࢫࢸ࣒๰⏕㒊㛛࣭ຓᩍ㸯㸬◊✲┠ⓗ ࣁ࣮ࣂ࣮࣭࣎ࢵࢩࣗἲ࡟ࡼࡗ࡚Ⳙ኱࡞࢚ࢿࣝࢠ࣮ࢆ࠿ࡅ࡚⏕ᡂࡉࢀ࡚࠸ࡿ࢔ࣥࣔࢽ࢔
ࡣࠊ᪥ᮏ࡛ࡣࡑࡢ࡯࡜ࢇ࡝ࢆ⫧ᩱ࡜ࡋ࡚ᾘ㈝ࡋ࡚࠸ࡿࠋ㏆ᖺࡢỈ⣲㟂せࡢቑຍ࡟ࡼࡾࡑ
ࡢ㈓ⶶࡸ㐠ᦙᢏ⾡࡟ࡘ࠸࡚ࡶ㛤Ⓨࡀ㐍ࢇ࡛࠾ࡾࠊࡑࡢ୰࡛࢔ࣥࣔࢽ࢔ࡀỈ⣲࢟ࣕࣜ࢔࡜
ࡋ࡚ὀ┠ࡉࢀ࡚࠸ࡿࠋຠ⋡ⓗ࡞࢔ࣥࣔࢽ࢔⏕ᡂᢏ⾡ࡢ☜❧ࡀᮇᚅࡉࢀ࡚࠾ࡾࠊࡑࡢ୍ࡘ
࡟⏕≀Ꮫⓗ࡞❅⣲ᅛᐃᢏ⾡ࡀ࠶ࡿࠋ⏕≀Ꮫⓗ࡞❅⣲ᅛᐃࡣᕤᴗⓗ࡞࢔ࣥࣔࢽ࢔⏕ᡂࣉࣟࢭࢫ࡜ẚ㍑ࡍࡿ࡜㠀ᖖ࡟ᑡ࡞࠸࢚ࢿࣝࢠ࣮ࡢࡳࢆᚲせ࡜ࡋࠊᣢ⥆ྍ⬟࡞㛤Ⓨ࡟ྜࡗ࡚࠸
ࡿࡀࠊ⏕ᡂࡉࢀࡿ࢔ࣥࣔࢽ࢔⃰ᗘࡣ㠀ᖖ࡟పࡃࠊ❅⣲ᅛᐃᚤ⏕≀ࡢάᛶಁ㐍ࡀᚲ㡲࡛࠶ࡿࠋᮏ◊✲࡛ࡣࠊ⏕≀Ꮫⓗ❅⣲ᅛᐃᢏ⾡ࢆ฼⏝ࡋࡓ᪂ࡓ࡞࢔ࣥࣔࢽ࢔⏕ᡂࢩࢫࢸ࣒ࡢ㛤Ⓨࡢࡓࡵ࡟ᚲせ࡞ᇶ♏ⓗ▱ぢࢆᚓࡿࡇ࡜ࢆ┠ⓗ࡜ࡍࡿࠋ㸰㸬◊✲ෆᐜ࡜ᡂᯝ ᮏ◊✲࡛ࡣࠊ⎔ቃ୰࠿ࡽ❅⣲ᅛᐃ⳦ࢆ㞟✚ᇵ㣴ࡋࠊ㟁Ꮚఏ㐩≀㉁࡜ࡋ࡚ሗ࿌ࡉࢀ࡚࠸
ࡿᅵተ⏬ศࡢ୍ࡘ࡛࠶ࡿ⭉᳜≀㉁ࣄ࣮࣑ࣗࣥࢆ௓ࡋ࡚㟁Ẽ໬Ꮫⓗ࡟❅⣲ᅛᐃ⬟ࢆಁ㐍ࡉࡏࡿࡇ࡜࡛ࠊ⏕≀Ꮫⓗ࡞࢔ࣥࣔࢽ࢔⏕ᡂᢏ⾡㛤Ⓨࢆ┠ᣦࡋ࡚࠸ࡿࠋ᫖ᖺᗘࡲ࡛ࡢᡂᯝ
࡟࠾࠸࡚ࠊỈ⏣ᅵተ࠿ࡽ㞟✚ࡋࡓ❅⣲ᅛᐃ⳦ᇵ㣴≀ࢆ⏝࠸࡚ࠊ␗࡞ࡿ㉳※ࡢࣄ࣮࣑ࣗࣥ
࡟ࡘ࠸࡚❅⣲ᅛᐃάᛶࡢຠᯝࢆヨ㦂ࡋࡓ⤖ᯝࠊヨ㦂࡟⏝࠸ࡓࣄ࣮࣑ࣗࣥ 5 ✀඲࡚࡟࠾࠸
࡚ಁ㐍ຠᯝࡀ☜ㄆࡉࢀࡓࡀࠊࡑࡢಁ㐍ຠᯝࡢ⛬ᗘࡣࣄ࣮࣑ࣗࣥ࡟ࡼࡗ࡚␗࡞ࡿࡇ࡜ࢆ☜ㄆࡋ࡚࠸ࡿࠋࡲࡓࠊᇵ㣴࡟⏝࠸ࡓᇵᆅ࡟ SL㸫10 solution ࡜ vitamin solution ࢆῧຍࡍࡿ
ࡇ࡜࡛❅⣲ᅛᐃάᛶࡀቑຍࡍࡿࡇ࡜ࢆ☜ㄆࡋ࡚࠸ࡿࠋ ᫖ᖺᗘࡣࠊ❅⣲ᅛᐃ⳦ᇵ㣴≀ෆ࡟ྵࡲࢀࡿ❅⣲ᅛᐃ㑇ఏᏊ࡟ࡘ࠸࡚࡝ࡢᚤ⏕≀ࡀ❅⣲ᅛᐃ㑇ఏᏊࢆ᭷ࡋ࡚࠸ࡿ࠿ࢆᢕᥱࡍࡿࡓࡵ࡟ࠊHiseq ࢆ⏝࠸ࡓ࣓ࢱࢤࣀ࣒ゎᯒࢆ⾜ࡗࡓ࡜ࡇࢁࠊ❅⣲ᅛᐃ㑇ఏᏊࡢ୍ࡘ࡛࠶ࡿ nifH ࢆᩘ✀㢮᳨ฟ࡛ࡁࡓࠋࡋ࠿ࡋ࡞ࡀࡽࠊ⏝࠸
ࡓ DNA ⃰ᗘࡀప࠸ࡇ࡜ࠊᚓࡽࢀࡓሷᇶ㓄ิࡀ▷࠸ࡇ࡜࠿ࡽࠊ୙᏶඲࡞ࢤࣀ࣒ᵓ⠏࡛࠶ࡾࠊࡑࡢ❅⣲ᅛᐃᚤ⏕≀ࡀ࡝ࡢ❅⣲ᅛᐃ㑇ఏᏊࢆ᭷ࡋ࡚࠸ࡿ࠿ࡢ≉ᐃ࡟ࡣ⮳ࡗ࡚࠸࡞࠿
ࡗࡓࠋᮏᖺᗘࡣࠊHiseq ࢆ⏝࠸ࡓゎᯒ࡛ᚓࡽࢀࡓࢤࣀ࣒ࢹ࣮ࢱ࡟ຍ࠼ࠊMiseq ࡛ࡢࢤࣀ࣒ࢹ࣮ࢱࢆຍ࠼ࡿࡇ࡜࡛ࢤࣀ࣒ᵓ⠏ࢆヨࡳࡓࠋࡲࡓࠊnifH 㑇ఏᏊࡢᐃ㔞ࡶ⾜ࡗࡓࠋ ❅⣲ᅛᐃᚤ⏕≀⩌㞟ᵓ㐀ゎᯒࡢ⤖ᯝࠊࣄ࣮࣑ࣗࣥᇵ㣴⣔࡛ࡣ Firmicutes 㛛࡟ᒓࡍࡿᚤ
⏕≀ࡀ 70㸣௨ୖࢆ༨ࡵ࡚࠾ࡾࠊࡑࡢ࠺ࡕ Clostridiales ┠࡟ᒓࡍࡿ Clostridium ᒓࠊ68

Ruminococcus ᒓࠊOxobacter ᒓ࡞࡝ࡀ୺࡞ࢢ࣮ࣝࣉ࡛࠶ࡗࡓࠋ࣐࢖ࢼ࣮࡞ࢢ࣮ࣝࣉ࡜ࡋ࡚ࡣࠊSporolactobacillus ᒓࠊPhyllobacterium ᒓࠊSphingomonas ᒓࠊRalstonia ᒓ࡞࡝ࡀᩘ㸣⛬ᗘ᳨ฟࡉࢀࡓࠋFirmicutes 㛛௨እࡢᚤ⏕≀ࡣྂ⣽⳦࡛࠶ࡿ Methanobacterium ᒓࡀṧࡾ
ࡢ 20㹼25㸣⛬ᗘࢆ༨ࡵ࡚࠸ࡿࡇ࡜ࢆ☜ㄆࡋࡓࠋࣄ࣮࣑ࣗࣥ↓ῧຍࡢᇵ㣴⣔ࡢᚤ⏕≀⩌㞟ᵓ㐀ゎᯒࡢ⤖ᯝࠊClostridum ᒓࠊPelosinus ᒓࠊRuminococcus ᒓ࡞࡝ࡢ Firmicutes 㛛ࡢᚤ⏕≀ࡀ 90㸣௨ୖࢆ༨ࡵࡿ⤖ᯝ࡛࠶ࡗࡓࠋࣄ࣮࣑ࣗࣥࡢ᭷↓࡟㛵ࢃࡽࡎ Firmicutes 㛛ࡢᚤ⏕≀ࡀඃ༨໬ࡋ࡚࠸ࡓ⌮⏤࡜ࡋ࡚ࡣࠊᇵ㣴࡟⏝࠸ࡓ Ashby ᇵᆅ࡟ࡣ࣐ࣥࢽࢺ࣮ࣝࡀྵ
ࡲࢀ࡚࠾ࡾࠊ᎘Ẽᇵ㣴⣔࡛࠶ࡿࡇ࡜ࡀせᅉ࡛࠶ࡿ࡜⪃࠼ࡿࠋࣄ࣮࣑ࣗࣥࡢ᭷↓࡟ࡼࡗ࡚
Methanobacterium ᒓࡢ᳨ฟ࡟኱ࡁࡃ㐪࠸ࡀฟ࡚࠾ࡾࠊMethanobacterium ࡣỈ⣲㈨໬ᛶࡢ
࣓ࢱࣥ⏕ᡂྂ⣽⳦࡛࠶ࡿࡀࠊ❅⣲ᅛᐃࢆ⾜࠺ྍ⬟ᛶࡶṧࡿࠋ❅⣲ᅛᐃ㑇ఏᏊࡢ୍ࡘ࡛࠶
ࡿ nifH 㑇ఏᏊࡢᐃ㔞ࢆ⾜ࡗࡓ࡜ࡇࢁࠊࣄ࣮࣑ࣗࣥᇵ㣴⣔࡛ࡣ 16S rRNA 㑇ఏᏊ࡟ẚ࡭࡚㠀ᖖ࡟ᑠࡉ࠸ࢥࣆ࣮ᩘ࡛࠶ࡗࡓ㸦10-5copy/ml㸧ࠋࡲࡓࠊࣄ࣮࣑ࣗࣥ↓ࡋࡢᇵ㣴⣔࡛ࡣ᳨ฟࡉࢀ࡞࠿ࡗࡓࠋ❅⣲ᅛᐃ㑇ఏᏊࡢࢥࣆ࣮ᩘࡀ 16S rRNA 㑇ఏᏊࡢࢥࣆ࣮ᩘ࡟ẚ࡭࡚㠀ᖖ࡟ᑠࡉ࠸ࡇ࡜࠿ࡽࠊᇵ㣴⣔ෆࡢ❅⣲ᅛᐃ㑇ఏᏊࡀ nifH ࡢࣉࣛ࢖࣐࣮ࢭࢵࢺ࡟ᑐࡋ࡚
ឤᗘࡀప࠸ࠊඃ༨✀࡛ࡣ࡞ࡃ࣐࢖ࢼ࣮࡞ᚤ⏕≀⩌ࡀ❅⣲ᅛᐃࢆᢸࡗ࡚࠸ࡿ࡞࡝ࡢྍ⬟ᛶࡀ⪃࠼ࡽࢀࡓࠋ ᮏᖺᗘࡣ᫖ᖺᗘᐇ᪋ࡋࡓ Hiseq ࡟ࡼࡿ࣓ࢱࢤࣀ࣒ゎᯒ࡟ຍ࠼࡚ࠊMiseq ࡟ࡼࡿ࣓ࢱࢤ
ࣀ࣒ࢹ࣮ࢱࡶྲྀᚓࡋࠊࡇࢀࡽࢆྜࢃࡏ࡚ゎᯒࡍࡿࡇ࡜࡛᏶඲࡞ࢤࣀ࣒ᵓ⠏ࢆヨࡳࡓࠋࡋ࠿ࡋ࡞ࡀࡽࠊMiseq ࡢሷᇶ㓄ิ࡛ࡶ୙༑ศ࡜࠸࠺⤖ᯝ࡜࡞ࡾࠊṧᛕ࡞ࡀࡽ␗࡞ࡿ᪉ἲ࡛෌ᗘ᳨ウࢆࡋ࡞ࡅࢀࡤゎᯒࡀࡇࢀ௨ୖ㐍ࡲ࡞࠸⤖ᯝ࡜࡞ࡗ࡚ࡋࡲࡗࡓࠋ௒ᚋࡢࢤࣀ࣒ゎᯒࡢࡓࡵ࡟ࡣ༑ศ㔞ࡢ DNA 㔞ࢆᚲせ࡜ࡍࡿゎᯒࢆ᳨ウࡍࡿᚲせࡀ࠶ࡾࠊࡑࡢࡓࡵ࡟ࡣ
኱㔞࡟ᇵ㣴ࡍࡿࠊ㐃⥆㐠㌿ࣜ࢔ࢡࢱ࣮ࡢ᳨ウ࡞࡝ࠊᅇศᇵ㣴௨እࡢᇵ㣴ࢆヨࡍࡇ࡜࡛ᚤ
⏕≀ゎᯒࡢࡓࡵࡢ‽ഛ࡜ࡍࡿணᐃ࡛࠶ࡿࠋ᭱⤊ⓗ࡟ࡣࠊࣄ࣮࣑ࣗࣥᏑᅾୗ࡛άᛶࡀቑຍ
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Development of Visible Light Communication System
Using Rotary LED Display and Camera㸦௦⾲㸧Ⲩ஭ ఙኴ㑻࣭ᒸᒣ⌮⛉኱Ꮫ࣭ᕤᏛ㒊 㟁Ẽ㟁Ꮚࢩࢫࢸ࣒Ꮫ⛉࣭ㅮᖌ㸦ศᢸ㸧ᑠᯘ ೺ኴ㑻࣭ྡᇛ኱Ꮫ⌮ᕤᏛ㒊 㟁Ẽ㟁ᏊᕤᏛ⛉ ෸ᩍᤵୀ↓ᕧࠊྂ࿡ ฼᭷⏕ࠊ୰ᒣ ᫭඾࣭ᒸᒣ⌮⛉኱Ꮫ኱Ꮫ㝔ᕤᏛ◊✲⛉ 㟁ᏊᕤᏛᑓᨷ
㸦◊✲ᡤᢸᙜᩍဨ㸧∦ᒣ ṇ᫛࣭ྡྂᒇ኱Ꮫ ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤࢩࢫࢸ࣒๰ᡂ㒊㛛 ᩍᤵ㸯㸬◊✲┠ⓗ ᮏ◊✲࡛ࡣ㸪ᅇ㌿ᘧ LED ❧యࢹ࢕ࢫࣉࣞ࢖ࢆ㏦ಙᶵ࡟⏝࠸ࡓ᪂ࡋ࠸ྍどග㏻ಙᢏ⾡ࡢ㛤Ⓨ࡟ྲྀࡾ⤌ࡴ㸬ᮏ⿦⨨ࡣ㸪୍ิ࡟୪࡭ࡓ N ಶࡢ LED ࢆ㧗㏿ᅇ㌿ࡉࡏ㸪ᅇ㌿ゅᗘẖ࡟␗࡞ࡿⅬ⁛ࢆࡉࡏࡿࡇ࡜࡛㸪ᫎീࢆࡲࡿ࡛✵㛫࡟ᾋ࠸࡚࠸ࡿࡼ࠺࡟ぢࡏࡿࡇ࡜ࡀ࡛ࡁ
ࡿே㛫ࡢ┠ࡢ㘒ぬࢆ฼⏝ࡋࡓᢏ⾡࡛࠶ࡿ㸬ࡇࡢ LED ࡀⅬ⁛ࡋ࡞ࡀࡽᅇ㌿ࡍࡿᵝᏊࢆ࣓࢝ࣛ࡟ࡼࡾᅇ㌿㏿ᗘ௨ୗࡢ㏿ࡉ࡛㟢ගࡋ࡚᧜ᙳࡍࢀࡤ㸪N ಶᅇ㌿ゅᗘᩘศࡢⅬ⁛ࡢኚ໬ࢆ 1 ᯛࡢ᧜ᙳ⏬ീ࡟ᤊ࠼ࡽࢀࡿ࡜⪃࠼ࡓ㸬ࡘࡲࡾ㸪᧜ᙳ⏬ീᙜࡓࡾ࡟ཷಙ࡛ࡁࡿࢹ࣮
ࢱ㔞ࢆቑຍࡉࡏࡽࢀࡿࡇ࡜࡟࡞ࡾ㸪ྍどග㏻ಙࡢ㧗㏿໬ࡀᮇᚅ࡛ࡁࡿ㸬௧࿴ 2 ᖺᗘࡣ㸪ᮏ◊✲ㄢ㢟ࡢ᰿ᖿ࡜࡞ࡿࣉࣟ࣌ࣛᆺᅇ㌿ᘧ LED ㏦ಙᶵࡢヨసᶵ㛤Ⓨ࡟ὀどࡍࡿ㸬㸰㸬◊✲ෆᐜ࡜ᡂᯝ
 ᅗ 1 ࡟ࣉࣟ࣌ࣛᆺᅇ㌿ᘧ LED ㏦ಙᶵࡢヨసᶵࢆ♧ࡍ㸬㏦ಙᶵࡣࣉࣟ࣌ࣛࢆᶍࡋࡓᅇ
㌿㒊㸪࣮ࣟࢱ࣮࢚ࣜࣥࢥ࣮ࢲ࣮㸪ࣈࣛࢩࣞࢫ࣮ࣔࢱ࣮㸪࣐࢖ࢥࣥ㸦Arduino Nano㸧࡛ᵓᡂࡉࢀ࡚࠸ࡿ㸬࡞࠾㸪࣮ࣟࢱ࢚ࣜࣥࢥ࣮ࢲ࣮࡜࣐࢖ࢥࣥࡣᅇ㌿㒊ࡢᇶᯈࡢ⫼㠃࡟᱁⣡ࡉࢀ࡚࠸ࡿ㸬ᅇ㌿㒊࡟ࡣ 32 ಶࡢ LED ࡀ⦪ 1 ิ࡟୪ࢇ࡛࠾ࡾ㸪࣮ࣔࢱ࣮࡟ࡼࡗ࡚ᅇ㌿ࡍࡿ㸬ࡑࢀ࡜㐃ືࡋ࡚࣮ࣟࢱ࣮࢚ࣜࣥࢥ࣮ࢲ࣮ࡀᅇ㌿ࡋ㸪1 ᗘࡢᅇ㌿ẖ࡟ࢡࣟࢵࢡࡀ⏕ᡂࡉࢀࡿ㸬ࡑࡢࢡࣟࢵࢡ࡟ᛂࡌ࡚㸪ᅇ㌿ 1 ᗘẖ࡟ LED ࡀⅬ⁛ࡍࡿࡼ࠺࡟ືసࡍࡿ㸬ᮏ◊✲࡛
ࡣ 32 ಶࡢ LED ࢆ୍ᩧ࡟Ⅼ⁛ࡉࡏࡿࡓࡵ࡟ࢩࣇࢺࣞࢪࢫࢱࢆ⏝࠸࡚࠸ࡿ㸬ᅇ㌿㒊ࡀ 1 ᗘᅇ㌿ࡍࡿ㛫࡟ࢩࣇࢺࣞࢪࢫࢱ࡬Ⅼ⁛ࣃࢱ࣮ࣥࢆ୍᪦᱁⣡ࡉࡏ㸪࣮ࣟࢱ࢚ࣜࣥࢥ࣮ࢲ࣮ࡢ
ࢡࣟࢵࢡࡀධࡿࢱ࢖࣑ࣥࢢ࡛ࡑࢀࡽࢆฟຊࡍࡿᵓ㐀࡟࡞ࡗ࡚࠸ࡿ㸬ࡇࢀࡣ㸪ᮏ◊✲࡛⏝࠸ࡓ࣐࢖ࢥࣥࡢฟຊࣆࣥᩘࡀᑡ࡞ࡃ㸪࣐࢖ࢥࣥ༢య࡛ࡣ 32 ಶࡢ LED ࢆไᚚ࡛ࡁ࡞࠸ࡓ
ࡵ࡛࠶ࡿ㸬ࡉࡽ࡟㸪ྛ LED ࡟༳ຍࡍࡿ㟁ᅽࢆ୍ᐃ࡟ࡍࡿࡓࡵ࡟㸪ࢩࣇࢺࣞࢪࢫࢱ࡜ LEDࡢ㛫࡟ࣂࢵࣇ࢓ࢆᤄධࡋ࡚࠸ࡿ㸬72

/('峘ਡຑ岶ଋ൸峒峁峐ኇ岲峳島峐岮峵৚ૡ৖崾嵑崟嵔崡嵊嵤崧嵤

଻峘
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଻峘
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• 嵕嵤崧嵒崐嵛崛嵤崨嵤• 嵆崌崛嵛

D ಯૃ૾ଙ

௕‫؟‬崿嵕嵂嵑஑৚ૡૄ/('ଛਦਃ峘૥੿ਃ

E ৚ૡ૾ଙ
௕‫؟‬৚ૡનੳৰୡ峑峘๡୶઺൸
㏦ಙᶵࡢᅇ㌿࡜ LED ࡢⅬ⁛ࢆ☜ㄆࡍࡿࡓࡵࡢ⡆༢࡞ᐇ㦂ࢆ⾜ࡗࡓ㸬ᐇ㦂࡛ࡣ㏦ಙᶵ
ࢆ 300 rpm ࡢ㏿ᗘ࡛ᅇ㌿ࡉࡏ㸪ᅇ㌿ 1 ᗘẖ࡟ኚ໬ࡍࡿ LED ࡢⅬ⁛ࢆ࣓࡛࢝ࣛ᧜ᙳࡋࡓ㸬࣓࢝ࣛࡢ᧜ᙳ㏿ᗘࡣ 10 fps ࡜ࡋ㸪ࣉࣟ࣌ࣛࡀ୍࿘ࡍࡿ㛫㸪࣓࢝ࣛࡣ㟢ගࢆ⥆ࡅࡿ㸬࣓࢝ࣛࡢࣞࣥࢬࡣ 35 mm ࡢ≀ࢆ⏝࠸㸪ࣆࣥࢺࡣ LED ࡢⅬ⁛ࡀㄆ㆑࡛ࡁࡿࡼ࠺࡟ㄪᩚࡋࡓ㸬㏦ಙᶵ࡜࣓࢝ࣛࡢ㊥㞳ࡣ 1 m ࡛࠶ࡾ㸪ࡑࢀࡒࢀࡀྥ࠿࠸ྜ࠺ࡼ࠺࡟タ⨨ࡋࡓ㸬ᐇ㦂࡛᧜ᙳࡋࡓ⏬ീࢆᅗ 2㸦㹟㸧࡜㸦㹠㸧࡟♧ࡍ㸬ᅗ 2㸦㹟㸧ࡣ㏦ಙᶵࡀ㟼Ṇࡋ࡚࠸ࡿ≧ែ࡛࠶ࡾ㸪ᅗ࠿ࡽ☜ㄆ࡛ࡁࡿࡼ࠺࡟㸪࣓࢝ࣛࡣ 1 ᯛࡢ᧜ᙳ⏬ീ࡛ 32 ಶࡢ LED ࡢⅬⅉࢆᤊ࠼࡚࠸ࡿ㸬ࡇࡇ࡛㸪1 ಶ࠶ࡓࡾࡢ LED ࡀ 1 ࣅࢵࢺࡢࢹ࣮ࢱࢆ㏦ಙࡋ࡚࠸ࡿ࡜௬
ᐃࡍࡿ࡜㸪1 ⏬ീᙜࡓࡾ 32 ࣅࢵࢺࡢࢹ࣮ࢱࢆ࣓࢝ࣛࡣཷಙࡋ࡚࠸ࡿ࡜ぢ೴ࡏࡿ㸬୍᪉㸪
ᅗ 2㸦㹠㸧ࡢᅇ㌿≧ែ࡛ࡣ㸪32 ಶࡢ LED ࡢⅬ⁛ࡀ෇≧࡟ṧീ࡜ࡋ࡚ᤊ࠼ࡽࢀ࡚࠸ࡿࡇ
࡜ࡀศ࠿ࡿ㸬ᮏ㏦ಙᶵࡣ༙࿘㸦180r㸧ᅇ㌿ࡍࡿ࡜ LED ࡢⅬ⁛ࡀ෇≧࡟࡞ࡿࡓࡵ㸪1r
ẖࡢṧീࡀ 32 bit ࡢࢹ࣮ࢱࢆ⾲ࡋ࡚࠸ࡿ࡜௬ᐃࡍࡿ࡜㸪180rࡢᅇ㌿࡛ 5,760 ࣅࢵࢺ
㸦=32ࣅࢵࢺ 180r㸧ࢆ 1 ᯛࡢ⏬ീ࡛ᤊ࠼࡚࠸ࡿࡇ࡜࡟࡞ࡿ㸬ࡘࡲࡾ㸪ṧീࢆ฼⏝ࡍࡿࡇ࡜࡛㸪㏻ಙ㏿ᗘྥୖࡀᮇᚅ࡛ࡁࡿ࡜⪃࠼ࡿ㸬
௧࿴ 2 ᖺᗘࡣ⿦⨨ࡢ㛤Ⓨ࡟࠶ࡓࡗ࡚㸪⿦⨨ࡢᅵྎཬࡧᇶᯈタィ࡟ὀどࡋࡓࡓࡵ㸪㏦ಙ
ᶵヨసᶵࡢ᏶ᡂࡲ࡛࡟᫬㛫ࢆせࡋ㸪ཷಙࢩࢫࢸ࣒ࡢ㛤Ⓨࡲ࡛ࡣ⮳ࡽ࡞࠿ࡗࡓ㸬ࡑࡇ࡛௧࿴ 3 ᖺᗘࡣࡇࡢ㏦ಙᶵࡢࡓࡵࡢཷಙ࢔ࣝࢦࣜࢬ࣒ࡢᥦ᱌㸪ཬࡧ㸪㏻ಙࣉࣟࢺࢥࣝࡢ㛤Ⓨࢆ⾜࠺ᡤᏑ࡛࠶ࡾ㸪⌧ᅾ㸪
ࠕ௧࿴ 3 ᖺᗘྡྂᒇ኱Ꮫᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤඹྠ฼⏝࣭ඹྠ◊✲ࠖࡢබເ࡟ᮏ◊✲ࣉࣟࢪ࢙ࢡࢺࡢ⥅⥆⏦ㄳ୰࡛࠶ࡿ㸬࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ཎⴭㄽᩥ㸼
࣭ Z. Tang, S. Arai, T. Yendo, D. He, and T. Yamazato, “Sequential Maximum Likelihood
Decoding Incorporating Reliability Determination for Image Sensor Communication,”
IEICE ComEX, vol.9, no.8, pp.365-370, Aug. 2020.
࣭ S. Arai, M. Kinoshita, and T. Yamazato, “Optical Wireless Communication: A Candidate 6G
Technology?,” IEICE Trans. Fund., vol.E104-A , no.1, pp.227-234, Jan. 2021.
㸺ᅜ㝿࣭ᅜෆ఍㆟㸼࣭ S. Arai, Z. Tang, A. Nakayama, H. Takada, and T. Yendo, “Implementation Experiment of a
Rotary LED Transmitter for Improving the Transmission Rate for Image Sensor
Communication,” 2020 IEEE GC Wkshps (OWC), Dec. 2020.

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WebGIS ᆺࢭ࣐ࣥࢸ࢕ࢵࢡࣔࢹࣝ࡬ࡢࣂ࢖࣐࢜ࢫࣔࢹࣝࡢᑟධ
Installation of Crop Model to Web-GIS type semantic modelᒣᓮ⏤⌮࣭ᮾி㎰ᴗ኱Ꮫ࣭ᆅᇦ⎔ቃ⛉Ꮫ㒊࣭ຓᩍᒸ⃝ ᏹ࣭ᮾி㎰ᴗ኱Ꮫ࣭ᆅᇦ⎔ቃ⛉Ꮫ㒊࣭ᩍᤵ㛵ᒣ⤢Ꮚ࣭ᮾி㎰ᴗ኱Ꮫ࣭ᆅᇦ⎔ቃ⛉Ꮫ㒊࣭෸ᩍᤵᯘ ᕼ୍㑻࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ࣭ᩍᤵ㸯㸬◊✲┠ⓗ ᮏ◊✲࡛ࡣࠕㄡ࡛ࡶ⡆༢࡟ࣅࢵࢢࢹ࣮ࢱ࡟ࡼࡗ࡚ࣂ࢖࣐࢜ࢫホ౯ࡀ⾜࠼ࡿࠖࢆࣔࢵࢺ
࣮࡟㸪⏕ែ⣔ࢧ࣮ࣅࢫホ౯ࢶ࣮࡛ࣝ࠶ࡿ᭱᪂ࡢ WebGIS ᆺࢭ࣐ࣥࢸ࢕ࢵࢡࣔࢹࣝ࡟ࣂ࢖
࣐࢜ࢫࣔࢹࣝࢆྲྀࡾධࢀ㸪ࣂ࢖࣐࢜ࢫ࢚ࢿࣝࢠ࣮➼࡟㛵ࡍࡿ◊✲࡟㈨ࡍࡿࡇ࡜ࢆ┠ⓗ࡜ࡋࡓࠋ㏆ᖺࡢẼೃኚືࡸேཱྀቑຍ㸪⅏ᐖࡢ⃭⏒໬ࢆ⫼ᬒ࡟㸪ࡉࡲࡊࡲ࡞⎔ቃࡢኚ໬࡟క࠺ࣂ
࢖࣐࢜ࢫ㔞ࡸရ㉁ࡢኚ໬ண

ࡀ㔜せどࡉࢀ࡚࠾ࡾ㸪స≀ࣔࢹࣝࡢᵓ⠏ࡀୡ⏺ྛᆅ࡛㐍ࡵࡽࢀ࡚࠸ࡿࠋࡋ࠿ࡋ㸪ከࡃࡢస≀ࣔࢹࣝࡣᑓ㛛ⓗ࡞▱㆑ࡀᚲせ࡞ሙྜࡀከࡃ㸪㎰ᐙࡸ⮬἞యࡀ฼⏝ࡍࡿࡇ࡜ࡣ㞴ࡋ࠸ࠋࢫ࣌࢖ࣥࡢࣂࢫࢡẼೃኚື◊✲ᡤ㸦Basque Centre for
Climate Change㸪BC3㸧ࡀ㛤Ⓨࡋࡓ k.LAB ࡣ AI ࡟ࡼࡿ⏕ែ⣔ࢧ࣮ࣅࢫホ౯ࡢࡓࡵࡢWebGIS ᆺࢭ࣐ࣥࢸ࢕ࢵࢡࣔࢹࣝࡢࢩࢫࢸ࣒ࣉࣛࢵࢺࣇ࢛࣮࣒ࡢྡ⛠࡛࠶ࡾ㸪ARIES㸦 Artificial intelligence for Ecosystem services 㸧 ࣉ ࣟ ࢪ ࢙ ࢡ ࢺ ࡜ ࡋ ࡚ ▱ ࡽ ࢀ ࡚ ࠸ ࡿ㸦http://aries.integratedmodelling.org㸧
ࠋk.LAB ࡟ഛࢃࡗࡓ Global model ࡟ࡣ㸪⏕ែ⣔ࢧ࣮ࣅࢫ࡟㛵㐃ࡍࡿ౪⤥ࢧ࣮ࣅࢫ㸪ㄪᩚࢧ࣮ࣅࢫ㸪ᩥ໬ࢧ࣮ࣅࢫ➼ࡢ୍㒊ࡢゎᯒࢆࢢ࣮ࣟࣂ
ࣝ࡟⾜࠺ࡇ࡜ࡀ࡛ࡁ㸪᪤࡟⤌ࡳ㎸ࡲࢀ࡚࠸ࡿᅵተ౵㣗㸪ὥỈணࣔࢹࣝ࡞࡝ࡢ」ᩘࡢࣔ

ࢹࣝࢆ⤫ྜホ౯ࡍࡿࡇ࡜ࡀྍ⬟࡜࡞ࡗ࡚࠸ࡿࠋࡑࡋ࡚㸪2019 ᖺ 10 ᭶࡟኱つᶍ࡞ updateࡀ⾜ࢃࢀ㸪୍⯡බ㛤ࡀ⾜ࢃࢀࡓࠋᮏ◊✲࡛ࡣ㸪ୡ⏺࡛ᗈࡃ฼⏝ࡉࢀ࡚࠸ࡿࣂ࢖࣐࢜ࢫࣔࢹ ࣝ ࡛ ࠶ ࡿ DSSAT 㸦 Decision Support System for Agrotechnology Transfer 㸧㸪 APSIM㸦Agricultural Production Systems siMulator㸧㸪AquaCrop ➼ࢆ࣮࣋ࢫ࡜ࡋࡓࣔࢹࣝࡢᑟධࢆ᳨ウࡋࡓࠋ

㸰㸬◊✲ෆᐜ࡜ᡂᯝ㸦SW ࢦࢩࢵࢡయ㸧 2020 ᖺᗘࡢ◊✲࡛ࡣ㸪᪤Ꮡࡢస≀ࣔࢹࣝࡢ࠺ࡕ AquaCrop ࡢᵓᡂࢆ☜ㄆࡋࡓࠋ
AquaCrop ࡣ FAO ࡢ Land and Water Division ࡀ㛤Ⓨࡋࡓస≀⏕㛗ࣔࢹ࡛ࣝ࠶ࡾ㸪ኳỈ࠾ࡼࡧ℺₅⏿ࡢỈ⏕⏘ᛶࡢྥୖࢆ┠ⓗ࡜ࡋ࡚࠸ࡿࠋAquaCrop ࡣ 2009 ᖺ࡟බ⾲ࡉࢀ࡚௨᮶㸪ୡ⏺ྛᆅࡢࡉࡲࡊࡲ࡞㎰ᴗ⎔ቃ᮲௳࡛౑⏝ࡉࢀ࡚࠸ࡿࠋ
AquaCrop ࡛౑⏝ࡉࢀ࡚࠸ࡿࠕỈ࡟ᑐࡍࡿ཰㔞᥎ᐃࠖࡢᇶᮏⓗ࡞㛵ಀᘧࡣ௨ୗࡢᘧ㸦1㸧࡛♧ࡉࢀࡿࠋ ൤ܻ௫ െ ܻ௔
‫ܶܧ‬௫ െ ‫ܶܧ‬൨ ൌ ‫ܭ‬௬ ൤
൨
‫ܶܧ‬௫
ܻ௫

(1)

76

ࡇࡇ࡛㸪ܻ௫ ࡣ᭱኱ྍ⬟཰㔞㸪ܻ௔ ࡣᐇ㝿ࡢ཰㔞㸪‫ܶܧ‬௫ ࡣ᭱኱ྍ⬟⵨Ⓨᩓ㔞㸪‫ࡣܶܧ‬ほ ࡉࢀࡓ⵨Ⓨᩓ㔞࡛࠶ࡾ㸪‫ܭ‬௬ ࡣ┦ᑐⓗ࡞཰㔞ᦆኻ࡜⵨Ⓨᩓ㔞ࡢῶᑡ࡜ࡢẚ౛ಀᩘ࡛࠶ࡿࠋࡇࡢ
ᘧ㸦1㸧ࢆ࣮࣋ࢫ࡜ࡋ࡚㸪᭱⤊ⓗ࡞཰㔞ࡔࡅ࡛࡞ࡃ㸪᪥༢఩࡛ࡢస≀⏕㛗࡜Ỉ⟶⌮ࡢࢩ࣑࣮ࣗࣞࢩࣙࣥࡀྍ⬟࡜࡞ࡗ࡚࠸ࡿࠋ
ࡇࡢ࡜ࡁ㸪AquaCrop ࡛ࡣస≀ࡢᡂ㛗㔞ࢆุ᩿ࡍࡿᣦᶆ࡜ࡋ࡚ Canopy Cover㸦CC㸧ࢆ㐺⏝ࡋ࡚࠸ࡿࠋస≀ࡢᡂ㛗⛬ᗘࡸගྜᡂ࣭⵨Ⓨᩓ㔞࡞࡝ࢆ♧ࡍᣦᶆ࡟ࡣ㸪ⴥ㠃✚ᣦᩘ
㸦LAI㸧ࡀ⏝࠸ࡽࢀࡿࡇ࡜ࡀከ࠸ࡀ㸪㠀◚ቯⓗᡭἲ࡛ᗈ⠊ᅖ࠿ࡘ⮬ືⓗ࡞㐃⥆ᐃࡣᅔ㞴࡛࠶ࡾ㸪స≀ࣔࢹࣝࡢࡼ࠺࡞ᆅᇦ༢఩࠶ࡿ࠸ࡣࢢ࣮ࣟࣂࣝ༢఩࡛ࡢࢩ࣑࣮ࣗࣞࢩࣙࣥ
࡟ࡣ㐺ࡋ࡚࠸࡞࠸ࠋ୍᪉㸪CC ࡣ⾨ᫍࢭࣥࢧ࣮ࡢṇつ໬᳜⏕ᣦᩘ㸦NDVI㸧࠿ࡽ᥎ᐃࡍࡿ
ࡇ࡜ࡀྍ⬟࡛࠶ࡿࠋࡓࡔࡋ㸪㏆ᖺ㎰ᴗศ㔝࡛ࡢ฼⏝ࡀὀ┠ࡉࢀ࡚࠸ࡿ↓ே⯟✵ᶵ㸦UAV㸧࡛ྲྀᚓࡋࡓ NDVI ࡟ࡼࡿ CC ࡢ᥎ᐃ࡟㛵ࡍࡿ◊✲஦౛ࡣ࡯࡜ࢇ࡝ࡳࡽࢀ࡞࠸ࠋ୍⯡ⓗ࡟⾨ᫍ⏬ീࡢゎീᗘࡣ 10m ௨ୖ࡛࠶ࡾ㸪⏬ീෆ࡟㞼ࡀᫎࡾ㎸ࢇ࡛ࡋࡲ࠺࡞࡝ᖺ㛫࡛ྲྀᚓ࡛ࡁࡿࢹ࣮ࢱᩘࡀᑡ࡞࠸ࡢ࡟ᑐࡋ㸪UAV ࡛ࡣ 0.10m ᮍ‶ࡢゎീᗘࡢ⏬ീࢆ㐃⥆ⓗ࡟ྲྀᚓ࡛ࡁࡿࡓࡵ㸪≉ᐃࡢᅡሙࡸᆅᇦ࡟࠾࠸࡚㧗㢖ᗘ࡟ CC ࢆ᥎ᐃࡍࡿࡇ࡜ࡀྍ⬟࡜࡞ࡿࠋࡇࡢ◊✲࡛ࡣ㸪໭ᾏ㐨ࡢࣛࢵ࢝ࢭ࢖ヨ㦂ᅡሙ࡟࠾࠸࡚ UAV ᧜ᙳࢆ⾜ࡗࡓࠋ౑⏝ࡋࡓᶵయࡣ Phantom 4 Pro㸦DJI㸸RGB ⏬ീࢆྲྀᚓ㸧࠾ࡼࡧ Inspire 1㸦DJI㸧+ Sequoia㸦Parrot㸸࣐ࣝࢳࢫ࣌ࢡࢺࣝ⏬ീࢆྲྀᚓ㸧࡛࠶ࡾ㸪2019 ᖺ 7 ᭶ 31 ᪥㹼8 ᭶ 1 ᪥࡟ㄪᰝࢆ⾜ࡗࡓࠋྲྀᚓࡋࡓ⏬ീࡣ Pix4D Mapper㸦Pix4D㸧ࢆ⏝࠸࡚࢜ࣝࢯࣔࢨ࢖ࢡ࠾ࡼࡧ NDVI ⏬ീࢆసᡂࡋ㸪ArcGIS Pro 2.3.0㸦ESRI㸧࡛ CC ࠾ࡼࡧ NDVI ࡢ್ࢆྲྀᚓࡋࡓࠋ࡞࠾㸪RGB ⏬ീ࠾ࡼࡧ࣐ࣝࢳࢫ࣌ࢡࢺࣝ⏬ീࡢᆅୖゎീᗘࡣࡑࢀࡒࢀ 1.3 cm ࠾ࡼࡧ 5.9 cm ࡛࠶ࡿࡀ㸪ࡇࡇ࡛ࡣᆅୖゎീᗘࢆ 0.5 m㸪1.0 m㸪2.5 m㸪5.0 m ࠾ࡼࡧ 10 m ࡟ኚ᭦ࡋ㸪ྛゎീᗘࡢCC ࠾ࡼࡧ NDVI ࡢ್ࢆẚ㍑ࡋࡓࠋ
ࡲࡎ㸪0.10 m㹼10 m ࡢゎീᗘ࡟࠾࠸࡚ NDVI ࡣ CC ࡜ᙉ࠸⥺ᙧࡢ┦㛵㛵ಀࡀᚓࡽࢀࡓ
ࠋ୧⪅ࡢ㛵ಀ࠿ࡽᚓࡽࢀࡓᅇᖐᘧࡢഴࡁࡣ 1.06㹼1.11 ࡛࠶
㸦R2 = 0.88㹼0.99㸹p < 0.001㸧
ࡾ㸪ษ∦ࡣ 0.247㹼0.250 ࡜ゎീᗘ࡟ࡼࡿኚ໬ࡣᑠࡉ࠿ࡗࡓࠋࡲࡓ㸪ඹศᩓ㸦ANCOVA㸧ࡢ⤖ᯝ࠿ࡽࡶ UAV ⏬ീࡢゎീᗘࡣ NDVI ࡜ CC ࡢ㛵ಀ࡟᭷ព࡞ᙳ㡪ࢆ୚࠼࡞࠸ࡇ࡜ࡀ
♧ࡉࢀ㸪UAV ⏬ീࢆ⏝࠸ࡓ CC ᥎ᐃࡀྍ⬟࡛࠶ࡿࡇ࡜ࡀࢃ࠿ࡗࡓࠋ

࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ཎⴭㄽᩥ㸼
࣭ KE ZHANG, HIROMU OKAZAWA, YURI YAMAZAKI, KIICHIRO HAYASHI, andOSAMU TSUJI, Relationship between NDVI and Canopy Cover sensed by small UAV ynder
different ground resolution, International Journal of Environmental and Rural Development,
in press㸺ᅜ㝿࣭ᅜෆ఍㆟㸼࣭ KE ZHANG, HIROMU OKAZAWA, YURI YAMAZAKI, KIICHIRO HAYASHI, andOSAMU TSUJI, Relationship between NDVI and Canopy Cover sensed by small UAV ynder
different ground resolution, International Conference of Environmental and Rural
Development, online, 2021/3/5-2021/3/6

77

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ู⣬ᵝᘧ㸰㸫㸰᳃ᯘࣂ࢖࣐࢜ࢫ࢚ࢿࣝࢠ࣮฼⏝ィ⏬ᨭ᥼ࡢࡓࡵࡢ᝟ሗᢏ⾡ࢆᛂ⏝ࡋࡓ࣐ࣝࢳࢫࢣ࣮ࣝᣢ⥆ྍ⬟㈨※㈿Ꮡ㔞ホ౯
Assessment of sustainable resource potential in multiple scales to support forest
biomass energy utility planning applying information technology⏫ᮧ ᑦ࣭኱㜰኱Ꮫ࣭኱Ꮫ㝔ᕤᏛ◊✲⛉࣭෸ᩍᤵᯇ஭Ꮥ඾࣭኱㜰኱Ꮫ࣭኱Ꮫ㝔ᕤᏛ◊✲⛉࣭ຓᩍ኱ሙ ┿࣭ᅜ❧⎔ቃ◊✲ᡤ࣭♫఍⎔ቃࢩࢫࢸ࣒◊✲ࢭࣥࢱ࣮࣭ᐊ㛗ᯘ ᕼ୍㑻࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ࣭ᩍᤵ㸯㸬◊✲┠ⓗ ᳃ᯘࣂ࢖࣐࢜ࢫ࢚ࢿࣝࢠ࣮ࡢ฼⏝ࡣ⬺Ⅳ⣲໬࡟ຍ࠼ࠊᆅᇦ㈨※ࡢ᭷ຠά⏝࡟ᐤ୚ࡋࠊ
ᑟධᣑ኱ࡀᮃࡲࢀࡿ୍᪉ࠊ㈨※࡜⎔ቃࡢᣢ⥆ྍ⬟ᛶࢆ⪃៖ࡋࡓィ⏬⟇ᐃࡢᅔ㞴ࡉࡀ㞀ᐖ࡜࡞ࡗ࡚࠸ࡿࠋࡇࡢࡓࡵ᳃ᯘࡢᣢࡘከᵝ࡞⏕ែ⣔ࢧ࣮ࣅࢫࢆ⪃៖ࡋࠊᯘศࡈ࡜ࡢ≉ᛶ࡟ᛂࡌࡓᣢ⥆ྍ⬟࡞㈨※฼⏝ࡀᚲせ࡛࠶ࡿࡀࠊᗈᇦ࡛࠾ࡇ࡞ࢃࢀࡿ㈨※㈿Ꮡ㔞ホ౯࡜ᯘศࢫࢣ࣮ࣝࡢ฼⏝ྍ⬟㔞ࡣᚲࡎࡋࡶ୍⮴ࡋ࡞࠸ࠋࡑࡇ࡛ᮏ◊✲ࡣ᝟ሗᢏ⾡ࢆᛂ⏝ࡋࠊᗈᇦ
᳃ᯘ㈨※㈿Ꮡ㔞࡜ᯘศࢫࢣ࣮ࣝᣢ⥆ྍ⬟㈨※฼⏝ྍ⬟㔞ࡢ᥎ィᡭἲࢆ㛤Ⓨࡋࠊᆅᇦ࡟࠾
ࡅࡿ᳃ᯘࣂ࢖࣐࢜ࢫ࢚ࢿࣝࢠ࣮฼⏝ィ⏬⟇ᐃࢆᨭ᥼ࡍࡿࡇ࡜ࢆ┠ⓗ࡜ࡍࡿࠋ㸰㸬◊✲ෆᐜ࡜ᡂᯝ ᮏ◊✲ࡣձࢹ࣮ࢱ཰㞟ࠊղ⌧ᆅㄪᰝࠊճ࣐ࣝࢳࢫࢣ࣮ࣝ㈨※㔞᥎ィ࡛ᵓᡂࡉࢀࠊ௒ᖺ
ᗘࡣձᆅ⌮࣭⎔ቃࢹ࣮ࢱࠊ᳃ᯘ⡙ࠊUAV ほ ࢹ࣮ࢱ཰㞟ࠊղ⌧ᆅㄪᰝࠊճ㈨※㈿Ꮡ㔞᥎ィࣔࢹࣝ㛤Ⓨࢆィ⏬ࡋࡓࠋ⌧ᆅㄪᰝ࣭ࢹ࣮ࢱ཰㞟ࡢ୍㒊ࡣឤᰁ⑕ᣑ኱ୗࡢ᪑⾜ไ㝈࡟ࡼࡗ࡚ᐇ᪋࡛ࡁࡎࠊ୺࡜ࡋ࡚ճࡢᯘศࢫࢣ࣮ࣝཬࡧᗈᇦࢫࢣ࣮ࣝࡢ᳃ᯘࣂ࢖࣐࢜ࢫ᥎ᐃࣔ
ࢹࣝࡢ㛤Ⓨࢆ⾜ࡗࡓࠋ㸺ᯘศࢫࢣ࣮ࣝࡢࣂ࢖࣐࢜ࢫ᥎ᐃ㸼
R2 ᖺᗘࡲ࡛࡟ࠊUAV ほ Ⅼ⩌ࢹ࣮ࢱࢆ⏝࠸ࡓᯘศࢫࢣ࣮ࣝࡢホ౯㸦ᶞ✀ཬࡧࣂ࢖࣐࢜
ࢫ᥎ᐃ㸧ᡭἲ㛤Ⓨࡣ㐍ࢇ࡛࠸ࡿࠋ௒ᖺᗘࡣⅬ⩌ࢹ࣮ࢱ࠿ࡽィ⟬ࡉࢀࡿ᳃ᯘ࢟ࣕࣀࣆ࣮ࣔ
ࢹࣝ㸦CHM㸧ࢆ⏝࠸ࡓ❧ᮌಶయࡢࣂ࢖࣐࢜ࢫ᥎ᐃࣔࢹࣝ࡜ࢹ࣮ࢱฎ⌮ࣉࣟࢭࢫࡢᨵⰋࢆ
࠾ࡇ࡞ࡗࡓࠋ᭱⤊ⓗ࡞❧ᮌᮦ✚ܸ㸦m3㸧ࡢ᥎ᐃࣔࢹࣝࡣࠊḟᘧ࡜࡞ࡗࡓࠋ
ேିଵ

‫ݖ‬ே
ܸ ൌ ܾԢ ൥ሺܰ െ ͲǤͷሻ‫ݖ‬ே െ ෍ ‫ݖ‬௜ ൅ ͳǤ͹ͳͺܰሺ‫ ܪ‬െ ‫ݖ‬ே ሻ൩ǡ
ܰ

(1)

௜ୀଵ

ࡇࡇ࡛‫ݖ‬௜ ࡣ❧ᮌ CHM ࡢᶞ㡬࠿ࡽ݅␒┠ࡢࢭࣝࡢᶞ㡬Ⅼ࠿ࡽࡢ㖄┤㊥㞳ࠊܰࡣ CHM ࢭࣝᩘࠊ‫ࡣܪ‬ᶞ㧗 (m)ࠊܾԢࡣ⤒㦂ⓗࣃ࣓࣮ࣛࢱ㸦m㸧࡛࠶ࡿࠋ㸺ᗈᇦࢫࢣ࣮ࣝࡢࣂ࢖࣐࢜ࢫ᥎ᐃ㸼⾨ᫍᦚ㍕ࡢྜᡂ㛤ཱྀ࣮ࣞࢲ࣮㸦SAR㸧ࡣࠊᗈᇦࣂ࢖࣐࢜ࢫ᥎ᐃࡢ᭷ຊ࡞᝟ሗ※࡛࠶ࡿࠋ

80

L ࣂࣥࢻ SAR ࡟ࡼࡿࢡࣟࢫ೫Ἴᚋ᪉ᩓ஘ಀᩘࡣⴥ⩌࡟ࡼࡿయ✚ᩓ஘ࢆ཯ᫎࡍࡿࡀࠊ᪤
 ◊✲ࡼࡾ⌧Ꮡ㔞 100 tdw/ha ⛬ᗘ௨ୖࡢ᳃ᯘ࡛ࡣಙྕࡀ㣬࿴ࡋ࡚ࠊ⌧Ꮡ㔞ࢆ᥎ᐃ୙⬟࡛࠶ࡿࡇ࡜ࡀሗ࿌ࡉࢀ࡚࠸ࡿࠋࡇࢀࡣᐦ࡞ᯘศ࡛ࡣࠊᶞ㡬㒊࡟᪂ࡓ࡞ⴥ⩌ࢆᙧᡂࡋ࡞ࡀࡽ
ୗ㒊ࡢⴥࡀᯤṚࡍࡿࡇ࡜࡛ࠊ࡯ࡰ୍ᐃࡢⴥ㠃✚ࢆಖࡕࡘࡘࣂ࢖࣐࢜ࢫᡂ㛗ࡍࡿ⌧㇟ࢆព࿡ࡋ࡚࠸ࡿࠋᘧ(1)ࢆ⡆␎໬ࡋࡓᮦ✚ࣔࢹࣝ㸦ḟᘧ㸧࡛ࡣࠊⴥ⩌࡟┦ᙜࡍࡿ‫ݖ‬ே ࠾ࡼࡧ‫ݖ‬ഥ݅ ୍ᐃࡢ᮲௳ୗ࡛ࡶᯞୗ㧗ሺ‫ ܪ‬െ ‫ ܰݖ‬ሻࡢᘏ㛗࡟ࡼࡗ࡚ᮦ✚ࡀᣑ኱ࡍࡿࡇ࡜ࡀࢃ࠿ࡿࠋܸ ൌ ܾԢ‫ݖ‬ே ሾ‫ݖ‬ே െ ‫ݖ‬ഥప ൅ ͳǤ͹ͳͺሺ‫ ܪ‬െ ‫ݖ‬ே ሻሿǡ

(2)୍᪉ࠊࣇ࣏࣓ࣝࣛࣜࢺࣜࢵࢡ SAR ࢹ࣮ࢱࡢᡂศศゎ㸦Pauli ศゎ㸧࡟ࡼࡗ࡚ࠊ஧ᅇᩓ஘
ᡂศߚ࡜య✚ᩓ஘ᡂศߛࡣࠊḟᘧ࡛⾲ࡉࢀࡿࠋߛ ൌ ሺ‫ ܸܪ‬൅ ܸ‫ܪ‬ሻΤξʹǡߚ ൌ ሺȁ‫ ܪܪ‬െ ܸܸȁሻΤξʹ

(3)᳃ᯘ࡟࠾ࡅࡿ஧ᅇᩓ஘ࡣᆅ㠃࡜ᶞᖿࡢ㐃⥆⾲㠃ᩓ஘࡟ࡼࡿᚋ᪉ᩓ஘࡛࠶ࡿࡓࡵࠊᘧ(2)ࡢᯞୗ㧗࡜ṇࡢ┦㛵ࡀண ࡉࢀࡿࠋⴥ⩌࡟ࡼࡿయ✚ᩓ஘ࡣᆅ㠃ࡲ࡛ࡢ㏱㐣࢚ࢿࣝࢠ࣮ࢆ
ῶᑡࡉࡏࡿࡓࡵࠊయ✚ᩓ஘࡜஧ᅇᩓ஘ࡢ஺஫స⏝ࢆྵࡴ⌧Ꮡ㔞‫ݒ‬㸦m3/ha㸧ࡢ㔜ᅇᖐࣔࢹࣝࢆࠊ㧗ᒣᕷㄪᰝࢧ࢖ࢺ௜㏆ࡢ᳃ᯘ⡙➨ 1 ᶞ✀࣊ࢡࢱ࣮ࣝᮦ✚ࢆᩍᖌ࡜ࡋ࡚ḟᘧࡢࡼ࠺࡟ྠᐃࡋࡓ
㸦N=37㸧
ࠋ౑⏝ࡋࡓ SAR ᚋ᪉ᩓ஘ࢹ࣮ࢱࡣࠊ඲⌫ 25 m ศゎ⬟ ALOS-2/PALSAR2 ࣔࢨ࢖ࢡࢹ࣮ࢱࢭࢵࢺ㸦2015 ᖺほ㸧࡛࠶ࡿࠋ‫ ݒ‬ൌ ͲǤʹ͸ͳͻߚ െ ʹǤͻ͹͹ ൈ ͳͲିହ ߚߛ ൅ ʹ͹͸Ǥ͸()

RMSE ࡜ R2 ࡣࡑࢀࡒࢀࠊ105.8 m3/ha ࡜ 0.40 ࡛࠶ࡗࡓࠋࡇࡢࣔࢹࣝ࡟ࡼࡾࠊㄪᰝࢧ࢖ࢺ
ࢆྵࡴ 137㹼138°Eࠊ36㹼37°N ࡢ᳃ᯘ⌧Ꮡ㔞࣐ࢵࣉ㸦ᅗ 1㸧ࢆసᡂࡋࡓࠋ㡿ᇦෆࡢ⌧Ꮡ㔞ᖹᆒ್࠾ࡼࡧ୰ኸ್ࡣࡑࢀࡒࢀࠊ350.1ࠊ332.9 m3/ha ࡛࠶ࡗࡓࠋ௒ᚋࡣᩍᖌࢹ࣮ࢱࢆ
ᗈࡃ཰㞟ࡋࠊߛ࡟ࡼࡿ␯࡞᳃ᯘࡢ᥎ᐃࣔࢹࣝ࡜ࢩ࣮࣒ࣞࢫ࡟᥋⥆ࡍࡿࣔࢹࣝࢆ᥈⣴ࡍࡿࠋ࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ཎⴭㄽᩥ㸼
࣭ Machimura, T., Fujimoto, A., Hayashi, K., Takagi, H., Sugita, S., A Novel Tree Biomass
Estimation Model Applying the Pipe
37.0

Model Theory and Adaptable to UAV-

36.8

Derived Canopy Height Models. Forests,

36.6

02).

600
500

36.4

12, 258, doi:10.3390/f12020258 (2021-

300

400

200

36.2

㸺ᅜ㝿࣭ᅜෆ఍㆟㸼

36.0࣭⏫ᮧᑦ㸪ᯘᕼ୍㑻㸪ᮡ⏣ᬡ㸪㧘ᮌὒ᫂㸪ࣃ࢖ࣉࣔࢹࣝ⌮ㄽࢆᛂ⏝ࡋࡓ UAV ほ

137.0

137.2

137.4

137.6

137.8

138.0

ᶞෙ㧗ࣔࢹࣝ࡟ࡼࡿ❧ᮌᮦ✚᥎ᐃἲ㸪᪥ᮏ㎰ᴗẼ㇟Ꮫ఍ 2021 ᖺ඲ᅜ኱఍㸪࢜ࣥࣛ࢖ࣥ㸪2021/3/18-31.

ᅗ 1 ᳃ᯘ⌧Ꮡ㔞㸦m3/ha㸧࣐ࢵࣉ㸦137㹼
138°Eࠊ36㹼37°Nࠊ୰ኸࡢ✵ⓑࡣ SAR ⏬ീࣔࢨ࢖ࢡฎ⌮࡟࠾ࡅࡿࢹ࣮ࢱ✵ⓑᇦ㸧

81ู⣬ᵝᘧ㸰㸫㸰㉸పᾘ㈝㟁ຊ↓⥺㏻ಙࢩࢫࢸ࣒࡟ྥࡅࡓཷಙ࢔ࣥࢸࢼ
Receive antennas for super low power consumption wireless systems㰻⸨ᑗே࣭⌰⌫኱Ꮫ࣭ᕤᏛ㒊࣭෸ᩍᤵ࿴⏣ၨ♸࣭⌰⌫኱Ꮫ࣭⌮ᕤᏛ◊✲⛉࣭༤ኈㄢ⛬๓ᮇㄢ⛬ 2 ᖺ➉⏣୍㈗࣭⌰⌫኱Ꮫ࣭⌮ᕤᏛ◊✲⛉࣭༤ኈㄢ⛬๓ᮇㄢ⛬ 1 ᖺᒸ⏣ၨ࣭ྡྂᒇ኱Ꮫ࣭ࢩࢫࢸ࣒๰ᡂ㒊㛛࣭෸ᩍᤵ㸯㸬◊✲┠ⓗ ᮏ◊✲ࡣ㸪↓⥺㏻ಙࢩࢫࢸ࣒࡟⏝࠸ࡽࢀࡿཷಙ࢔ࣥࢸࢼࡢ┬㟁ຊ໬࡟㛵ࡍࡿ◊✲࡛࠶ࡿ㸬ᐊෆ㏻ಙࡸ⛣ືయ
㏻ಙ࡛ࡣ㸪↓ᩘࡢಙྕࡀཷಙ࢔ࣥࢸࢼ࡟฿᮶ࡋ࡚࠸ࡿࡀ㸪⌧≧ࡣࡑࢀࡽࡀࣛࣥࢲ࣒࡟㊊ࡋྜࢃࡉࢀࡓᚋࡢಙྕ
ࢆ฼⏝ࡋ࡚࠸ࡿ㸬ᮏ◊✲࡛ࡣ㸪ࡇࢀࡽከᩘࡢಙྕࢆྠ఩┦࡛ྜᡂࡍࡿཷಙ࢔ࣥࢸࢼࢩࢫࢸ࣒ࡢᐇ⌧ࢆ┠ⓗ࡜ࡍࡿ㸬ࡇࢀ࡟ࡼࡾ㸪฿᮶ಙྕࡢཷಙ㟁ຊࡀᚤᙅ࡛࠶ࡗ࡚㸪ᚑ᮶ࡢ᪉ἲ࡛ࡣ㏻ಙ୙ྍ⬟࡞⎔ቃ࡛࠶ࡗ࡚ࡶ㸪ᮏ࢔ࣥࢸࢼࢩࢫࢸ࣒࡟ࡼࡿ኱ᖜ࡞฼ᚓ࡟ࡼࡾ㸪㏻ಙࢆྍ⬟࡜ࡉࡏࡽࢀࡿ㸬ຍ࠼࡚㸪ᮏ࢔ࣥࢸࢼࢩࢫࢸ࣒࡟ࡼࡾ㸪ᡤせရ㉁ࢆ‶㊊ࡍࡿࡓࡵ࡟ᚲせ࡞ཷಙಙྕ㟁ຊࢆ኱ᖜ࡟పῶࡋ㸪⌧≧ࡢ↓⥺㏻ಙࢩࢫࢸ࣒ࢆࡼࡾ┬㟁ຊ࡛฼⏝ྍ⬟࡜ࡍࡿࡇ࡜ࢆ┠ⓗ࡜ࡍࡿ㸬㸰㸬◊✲ෆᐜ࡜ᡂᯝ
ᮏᖺᗘࡣ㸪◊✲௦⾲⪅ࡀᥦ᱌ࡋ࡚࠸ࡿ࢔ࣥࢸࢼࣃࢱ࣮ࣥከ㔜ᢏ⾡ࢆཷಙ࢔ࣥࢸࢼ࡟⏝࠸ࡓሙྜ࡟࠾ࡅࡿ㸪ཷಙࢲ࢖ࣂ࣮ࢩࢳ࡟ࡘ࠸࡚ィ⟬ᶵࢩ࣑࣮ࣗࣞࢩࣙࣥࢆ⏝࠸࡚≉ᛶホ౯ࢆ⾜ࡗࡓ㸬࢔ࣥࢸࢼࣃࢱ࣮ࣥࡣ㸪┤ὶ࡜sfs ࡢ࿘ἼᩘᡂศࢆᣢࡘṇᘻἼࢆຍ࠼ࡓ᫬㛫㛵ᩘࢆ᝿ᐃࡋࡓ㸬࿘Ἴᩘ fs ࢆ༑ศ኱ࡁࡃ࡜ࡿ࡜㸪࢔ࣥࢸࢼࣃࢱ࣮ࣥࡢྛ࿘Ἴᩘᡂศࡣ
஫࠸࡟┤஺ࡍࡿࡓࡵ㸪௬᝿ⓗ࡟ 3 ಶࡢཷಙ࢔ࣥࢸࢼ
ࢆᣢࡘࡇ࡜࡜ྠ➼ࡢཷಙಙྕࡀᚓࡽࢀࡿ㸬㏻ᖖ㸪ESPAR(Electronically

Steerable

Passive

Array

Radiator)࢔ࣥࢸࢼࢆ⏝࠸࡚࢔ࣥࢸࢼࣃࢱ࣮ࣥከ㔜ࢆᐇ⌧ࡍࡿࡓࡵ㸪⤥㟁⣲Ꮚᩘࢆቑࡸࡍࡇ࡜࡞ࡃ௬᝿࢔
ࣥࢸࢼᩘࢆቑຍ࡛ࡁࡿ㸬ࡇࡢࡼ࠺࡞స⏝࡟ࡼࡾ㸪ࢲ࢖ࣂ࣮ࢩࢳ฼ᚓࢆᚓ࡞ࡀࡽ㸪࢔ࣥࢸࢼ࡟ಀࡿᾘ㈝㟁
ຊࢆపῶࡍࡿ㸬୍᪉࡛㸪ྑᅗ(a)ࡢࡼ࠺࡟㸪ᡤᮃಙྕ
ࡢᦙ㏦Ἴ࿘Ἴᩘ fc ࡟ᑐࡋ࡚㸪sfs ࿘Ἴᩘࡀ␗࡞ࡿ఩⨨࡟ᖸ΅ಙྕࡀ฿᮶ࡍࡿሙྜ㸪ከ㔜࢔ࣥࢸࢼࣃࢱ࣮
ࣥࡢస⏝࡟ࡼࡾ㸪ཷಙಙྕࢫ࣌ࢡࢺࣝࡣྑᅗ(b)ࡢࡼ
࠺࡟࡞ࡿ㸬ࡍ࡞ࢃࡕ㸪ᡤᮃಙྕࡣ㸪ᮏ᮶ࡢ࿘Ἴᩘ fc
࡜ fcsfs ࡢ࿘Ἴᩘ࡟ศᩓࡍࡿࡓࡵࢲ࢖ࣂ࣮ࢩࢳࣈࣛ
ࣥࢳࢆᙧᡂࡍࡿ㸬࡜ࡇࢁࡀ㸪ᖸ΅ಙྕࡶ࢔ࣥࢸࢼࣃ
ࢱ࣮ࣥࡢస⏝࡟ࡼࡾ㸪sfs ࿘Ἴᩘࡀ␗࡞ࡿᖏᇦ࡟ᡂ

82ศࡀศᩓࡉࢀࡿ㸬ࡇࡢศᩓࡉࢀࡓᡂ
ศࡣ㸪ᡤᮃಙྕᡂศ࡜㔜࡞ࡿࡓࡵ㸪ࡑࡢࡲࡲཷಙࡍࡿ࡜ᡤᮃಙྕࡢ≉ᛶຎ໬࡟ࡘ࡞ࡀࡿ㸬ࡑࡇ࡛㸪ᮏ◊✲࡛ࡣ㸪ཧ↷ಙྕ࡜ཷಙಙྕ࡜ࡢᖹᆒ
஧஌ㄗᕪ࡟㛵ࡋ࡚ MMSE (Minimum
Mean Square Error) つ⠊࡟ᇶ࡙ࡃᖸ΅㝖ཤἲࢆᥦ᱌ࡋࡓ㸬ኚㄪ᪉ᘧࢆ BPSK (Binary Phase
Shift Keying) ࡜ ࡋ ࡓ ሙ ྜ ࡟ ࠾ ࡅ ࡿ
SIMO (Single Input Multiple Output)㏻ಙ࡟ࡘ࠸࡚㸪ィ⟬ᶵࢩ࣑࣮ࣗࣞࢩ
ࣙࣥࢆ⏝࠸ࡓࣅࢵࢺㄗࡾ⋡≉ᛶࢆồࡵࡓ㸦ྑᅗ㸧㸬ࡇࡇ࡛㸪ᶓ㍈ࡣ୍᪉ࡢᖸ΅ಙྕ࡜ᡤᮃಙྕ࡜ࡢಙྕᑐᖸ΅㟁ຊẚ SIR (Signal-to-Interference power Ratio)㸪⦪㍈ࡣࣅࢵࢺㄗࡾ⋡ࢆ⾲ࡋ࡚࠸ࡿ㸬฿᮶ࣃࢫᩘ(Np)ࢆ 2
࠾ࡼࡧ 16 ࡜ࡋ㸪ࡶ࠺୍᪉ࡢᖸ΅ಙྕ࡜ᡤᮃಙྕ࡜ࡢ SIR ࢆ 0 dB, 10 dB, 30 dB ࡜ࡋࡓ㸬ᅗࡼࡾ㸪฿᮶ࣃࢫᩘࡀ
ቑຍࡍࡿࡇ࡜࡟ࡼࡾ㸪ㄗࡾ⋡ࡀపῶࡉࢀ࡚࠸ࡿࡇ࡜࠿ࡽ㸪ࣃࢫࢲ࢖ࣂ࣮ࢩࢳ฼ᚓࡀ☜ㄆ࡛ࡁࡿ㸬ࡲࡓ㸪฿᮶ࣃࢫᩘࡀ༑ศ࡟ከ࠸(Np=16)ሙྜ㸪ᥦ᱌ MMSE ᖸ΅㝖ཤἲ࡟ࡼࡾ㸪ᖸ΅Ἴᩘࡀ 2㸦ࡇࡢ᮲௳࡛ࡣ㸪᭱኱ࡢᖸ΅Ἴᩘ㸧࡛࠶ࡗ࡚ࡶ㸪ࡑࢀࡒࢀࡢ SIR ࡀ 10 dB ⛬ᗘ࡛࠶ࢀࡤ㸪⣙ 10-3 ࡢࣅࢵࢺㄗࡾ⋡ࡀᚓࡽࢀࡿࡇ࡜ࡀศ࠿ࡿ㸬ᮏ᳨ウ࡛ࡣ㸪ㄗࡾゞṇ➢ྕࢆ᥇⏝ࡋ࡚࠸࡞࠸ࡀ㸪ㄗࡾゞṇ➢ྕ࡜⤌ࡳྜࢃࡏࡿࡇ࡜࡟ࡼࡾ㸪ᐇ⏝࡟⪏࠼࠺ࡿࣅࢵ
ࢺㄗࡾ⋡≉ᛶࡀᚓࡽࢀࡿࡶࡢ࡜ண᝿ࡉࢀࡿ㸬ᖸ΅㟁ຊࡀᑠࡉ࠸㸪ࡍ࡞ࢃࡕ SIR ࡀ኱ࡁ࠸ሙྜ㸪ࣃࢫᩘࡀ 16 ࡛࠶ࡿ࡜㸪⊂❧ࡋࡓ࢔ࣥࢸࢼ 3 ᮏ࡜ྠᵝࡢㄗࡾ⋡ࡀᚓࡽࢀࡿࡇ࡜ࡀศ࠿ࡿ㸬ESPAR ࢔ࣥࢸࢼࢆ⏝࠸ࡿሙྜ㸪↓⤥㟁⣲Ꮚࡣ㸪⤥㟁⣲Ꮚ࠿ࡽ༙Ἴ㛗௨ෆ࡟タ⨨ࡍࡿࡓࡵ㸪3 ⣲Ꮚ⥺ᙧ࢔ࣞ࢖࢔ࣥࢸࢼࡼࡾࡶ࢔ࣥࢸࢼࢧ࢖ࢬࢆᑠᆺ
໬ྍ⬟࡛࠶ࡾ㸪⤥㟁⣲Ꮚᩘࡶ 1 ᮏ࡟పῶ࡛ࡁࡿ㸬ᮏ◊✲࡛ࡣ㸪࢔ࣥࢸࢼࣃࢱ࣮ࣥከ㔜᪉ᘧ࡟ࡼࡾ㸪Ⰻዲ࡞ࣅࢵ
ࢺㄗࡾ⋡ࢆ㐩ᡂࡋࡘࡘ㸪ᑠᆺ࣭㉸పᾘ㈝㟁ຊ໬ྍ⬟࡞ཷಙ࢔ࣥࢸࢼࡢᐇ⌧ᢏ⾡࡟㛵ࡍࡿᇶ♏ⓗ࡞㐨➽ࢆ♧ࡋࡓ㸬࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ཎⴭㄽᩥ㸼
࣭ Nobuhide Kinjo, Masato Saito, Diversity Reception and Interference Cancellation for Receivers Using Antenna with
Periodically Variable Antenna Pattern,’’ IEICE Trans. Fundamentals of Electronics, Communications and Computer
Sciences, E104-A-1, pp. 253-262 (2021-1).
㸺ᅜ㝿࣭ᅜෆ఍㆟㸼࣭㰻⸨ᑗே㸪࢔ࣥࢸࢼࣃࢱ࣮ࣥከ㔜࡟ࡼࡿ኱つᶍฟຊ࣭పࢥࢫࢺཷಙ࢔ࣥࢸࢼ࡟㛵ࡍࡿ◊✲㸪㟁Ꮚ᝟ሗ㏻ಙᏛ
఍࢔ࣥࢸࢼ࣭ఏ᧛◊✲఍㸪㑣ぞᕷࡪࢇ࠿ࢸࣥࣈࢫ㤋㸪2020 ᖺ 10 ᭶ 2 ᪥㸬㸺⏘ᴗ㈈⏘ᶒ㸼࣭ ฟ㢪ᑂᰝㄳồ㸪㏦ಙ⿦⨨࠾ࡼࡧཷಙ⿦⨨㸪≉㢪 2018-001547㸪2020 ᖺ 9 ᭶ 10 ᪥㸬83ู⣬ᵝᘧ㸰㸫㸰ࢯࣇࢺ࢙࢘࢔↓⥺ࢆ⏝࠸ࡓὶᫍࣂ࣮ࢫࢺ㏻ಙࡢ㧗ຠ⋡໬࡟㛵ࡍࡿ◊✲A Study on Performance Improvement of Meteor Burst Communications using
Software Defined Radio    ࿴⏣ᛅᾈ࣭㟼ᒸ኱Ꮫ࣭Ꮫ⾡㝔ᕤᏛ㡿ᇦ࣭ᩍᤵ      ᒸ⏣ၨ࣭ྡྂᒇ኱Ꮫ࣭ࢩࢫࢸ࣒๰ᡂ㒊㛛࣭෸ᩍᤵ㸯㸬◊✲┠ⓗὶᫍࡀᆅ⌫ࡢ኱Ẽᅪ࡟✺ධࡍࡿ㝿ࠊ኱Ẽ࡜ࡢᦶ᧿࡟ࡼࡾ㟁㞳Ẽయᰕ(ὶᫍࣂ࣮ࢫࢺ) ࡀⓎ⏕ࡍࡿࠋ ὶᫍࣂ࣮ࢫࢺ㏻ಙ(Meteor Burst Communications: MBC)࡜ࡣࠊࡇࡢὶᫍࣂ࣮
ࢫࢺ࡟ࡼࡿప VHF ᖏ㟁Ἴࡢ཯ᑕ⌧㇟ࢆ฼⏝ࡋࡓぢ㏻ࡋእ㏻ಙ࡛࠶ࡾࠊ᭱኱ 2000km 㞳
ࢀࡓ㏻ಙᒁ㛫࡛ࠊ኱つᶍ࡞࢖ࣥࣇࣛࢆᚲせ࡜ࡏࡎࢹ࣮ࢱఏ㏦ࢆᐇ⌧࡛ࡁࡿࠋࡑࡢࡓࡵ
MBC ࡣ኱㔞ࡢࢹ࣮ࢱఏ㏦ࢆᚲせ࡜ࡋ࡞࠸ࠊ⎔ቃほࡸẼ㇟ほࢩࢫࢸ࣒࡞࡝࡟ᛂ⏝ࡉࢀ࡚࠸ࡿࠋ⌧ᅾࠊ㉥㐨ᆅᇦ࡛ࡢ MBC ࡢ฼⏝ࢆ┠ᣦࡋࠊ࢖ࣥࢻࢿࢩ࢔࡛ᐇ㦂ࢆ㛤ጞࡋ࡚࠸ࡿࠋ㏆ᖺࠊࢯࣇࢺ࢙࢘࢔↓⥺ᶵ(Software Defined Radio: SDR)ࡀᛴ㏿࡟Ⓨᒎࡋࠊࡑࡢ฼
⏝࡟ࡼࡾ㏻ಙࢩࢫࢸ࣒ࡢᨵၿࡀᮇᚅ࡛ࡁࡿࠋᮏ◊✲࡛ࡣࠊSDR ࡟ᇶ࡙࠸ࡓ MBC ࢩࢫࢸ࣒ࡢᛶ⬟ࡢ㧗ຠ⋡໬࡟㛵ࡋ᳨࡚ウࡍࡿࠋ㸰㸬◊✲ෆᐜ࡜ᡂᯝ
SDR ࡣࠊࣁ࣮ࢻ࢙࢘࢔࡟ኚ᭦ࢆຍ࠼ࡎࢯࣇࢺ࢙࢘࢔ࡢ᭩ࡁ᥮࠼ࡢࡳ࡛ࠊᕼᮃࡍࡿ㏻
ಙࢩࢫࢸ࣒ࢆᐜ᫆࡟ᵓ⠏࡛ࡁࡿ↓⥺ᶵ࡛࠶ࡿࠋSDR ࡟ࡼࡿ MBC ࢩࢫࢸ࣒ࡢ㛤Ⓨ࡛ࡣỗ⏝ PC ࡢ฼⏝ࡀᮃࡲࡋࡃࠊSDR 㛤Ⓨࢶ࣮ࣝ࡜ࡋ࡚ GNU Radio ࢆ⏝࠸ࡿࠋᮏࢶ࣮ࣝࢆ⏝࠸ࡓ MBC ࣔࢹ࣒ࢆ GMM (GNU-Radio Modem for MBC) ࡜ྡ௜ࡅࡿࠋ
GMM 㛤Ⓨࡢ㔜せ࡞ㄢ㢟ࡢ㸯ࡘ࡟ࠊPSK ಙྕࡢ᭱㐺ཷಙ࡟⏝࠸ࡽࢀࡿ࣮ࣝࢺࣞ࢖ࢬࢻ
ࢥࢧ࢖ࣥ(Root Raised Cosine: RRC)ࣇ࢕ࣝࢱࡢᐇ⿦ࡀᣲࡆࡽࢀࡿࠋRRC ࣇ࢕ࣝࢱ࡟ࡣ┤⥺఩┦ࡀồࡵࡽࢀࠊࡑࡢᐇ⿦ࡣ FIR ᵓᡂ࡟ᇶ࡙ࡃࡶࡢ࡜࡞ࡿࡀࠊࡑࡢ⤖ᯝࠊಙྕฎ⌮࡟ከᩘࡢ✚࿴₇⟬ࡀᚲせ࡜࡞ࡿࠋࡋ࠿ࡋὶᫍࣂ࣮ࢫࢺ㏻ಙ㊰ࡣ୍⯡࡟ᩘⓒ࣑ࣜ⛊⛬ᗘࡋ࠿ᣢ⥆࡛ࡁࡎࠊࡑࡢ㛫࡟୍㐃ࡢࣃࢣࢵࢺఏ㏦ࢆ᏶஢ࡉࡏ࡞ࡅࢀࡤ࡞ࡽ࡞࠸ࡓࡵࠊᑡ࡞࠸₇⟬㔞࡛ࣇ࢕ࣝࢱࢆᐇ⌧ࡍࡿ࡜ඹ࡟ࠊᾋືᑠᩘⅬಙྕධຊ࡟ᑐࡋ࡚ࡶᏳᐃ࡟ືసࢆࡍࡿࣇ
࢕ࣝࢱᵓᡂࢆᥦ᱌ࡍࡿᚲせࡀ࠶ࡿࠋᮏ◊✲࡛ࡣࠊࡑࡢࡼ࠺࡞ࣇ࢕ࣝࢱ࡜ࡋ࡚࢝ࢫࢣ࣮ࢻ
ᆺ෌ᖐⓗ(Cascaded Recursive: CR) FIR ࣇ࢕ࣝࢱ࡟ࡼࡿ RRC ࣇ࢕ࣝࢱᵓᡂ࡞ࡽࡧ࡟ࠊࣜ
ࢭࢵࢱ௜ࡁ CR-FIR ࢆᥦ᱌ࡍࡿࠋ
CR-FIR ࣇ࢕ࣝࢱᵓᡂ࡛ࡣ㸪ࣇ࢕ࣝࢱࡢ࢖ࣥࣃࣝࢫᛂ⟅ࢆ㧗ࠎ‫ܯ‬ḟࡢ༊ศⓗከ㡯ᘧ࡜௬ᐃࡍࡿࡇ࡜࡛ࠊࡑࡢఏ㐩㛵ᩘࢆ‫ܯܪ = )ݖ(ܪ‬+1 (‫)ݖ‬/(1 í ‫ݖ‬í1)‫ܯ‬+1 ࡜⾲⌧࡛ࡁࡿࡇ࡜࡟╔┠ࡍࡿࠋࡑࡢ⤖ᯝࠊఏ㐩㛵ᩘࢆ‫ܯܪ‬+1 (‫✚࡜)ݖ‬ศჾࡢࡳ࡛⾲ࡋࠊࡉࡽ࡟‫ܯܪ‬+1 (‫ ࢆ)ݖ‬RRC ࣇ࢕ࣝࢱ≉ᛶ࡟ᇶ࡙࠸ࡓ࢚࣑࣮ࣝࢺ⿵㛫࡛㏆ఝࡍࡿࡇ࡜࡛ࠊᴟࡵ࡚ᑡ࡞࠸஌⟬ᩘ࡛ࣇ࢕ࣝࢱ≉ᛶ

84ࢆᐇ⌧ࡍࡿࠋ
ࡇࡢ CR-FIR ࣇ࢕ࣝࢱᵓᡂ࡟ࡣ෌
ᖐⓗฎ⌮ࡀྵࡲࢀࡿࡓࡵࠊᾋືᑠᩘ
Ⅼධຊ࡟ᑐࡋ࡚ㄗᕪࡀ⵳✚ࡋࠊືసࡀ୙Ᏻᐃ࡜࡞ࡿࡇ࡜ࡀ☜࠿ࡵࡽࢀࡓࠋ
ࡑࡇ࡛ࠊᏳᐃᛶࢆ☜ಖࡍࡿࡓࡵ࡟タィࣇ࢕ࣝࢱ࡟ࣜࢭࢵࢱࢆ௜୚ࡍࡿࡇ
࡜ࢆᥦ᱌ࡍࡿࠋᥦ᱌᪉ᘧ࡛ࡣ CR-FIRࣇ࢕ࣝࢱࢆ 2 ⤌⏝ពࡋ㸪ྛ✚ศჾࢆ

ᅗ 1 タィࣇ࢕ࣝࢱࡢ࢖ࣥࣃࣝࢫᛂ⟅༙࿘ᮇࡎࡽࡍࡼ࠺タ⨨ࡋࠊฟຊࢆᚓࡿ
㝿࡟ྛࣇ࢕ࣝࢱࢆ࿘ᮇẖ࡟ࣜࢭࢵࢺ
ࡍࡿࡇ࡜࡜ࡍࡿࠋ
ᅗ㸯࡟タィࣇ࢕ࣝࢱࡢ࢖ࣥࣃࣝࢫ
ᛂ⟅ࢆ♧ࡋ࡚࠸ࡿࠋࡇࡇ࡛タィࣇ࢕ࣝࢱࡢࢱࢵࣉᩘࡣࢃࡎ࠿㸷࡛࠶ࡿࠋᮏᅗ
ࡼࡾࠊタィࣇ࢕ࣝࢱࡢ࣓࢖࣮ࣥࣟࣈࡀࠊ
⌮᝿ RRC ࣇ࢕ࣝࢱ࡜࡯ࡰྠᵝࡢ≉ᛶࢆ♧ࡋ࡚࠸ࡿࠋᅗ 2 ࡟♧ࡍ࿘Ἴᩘ≉ᛶࡼࡾࠊ࣓࢖࣮ࣥࣟࣈࡣ࡯ࡰ⌮᝿ࣇ࢕ࣝࢱ࡜ྠ➼ࡢ≉ᛶࡀᚓࡽࢀࡿ୍᪉ࠊࢧ

ᅗ 2㸸タィࣇ࢕ࣝࢱࡢ࿘Ἴᩘ≉ᛶ࢖ࢻ࣮ࣟࣈ࡛ࡸࡸ኱ࡁࡵࡢ್ࢆᣢࡘ
ࡇ࡜ࡀศ࠿ࡿࠋࡇࢀ࡟ࡼࡾࠊタィࣇ࢕ࣝࢱࡣཷಙഃ࡛฼⏝ࡍ࡭ࡁࡶࡢ࡛
࠶ࡿࡇ࡜ࡀศ࠿ࡿࠋᅗ 3 ࡟ཷಙഃ࡟
タィࣇ࢕ࣝࢱࢆ⏝࠸ࡓሙྜࡢ PER ≉ᛶࢆ♧ࡍࠋࡇࡢᅗࡼࡾࠊタィࣇ࢕ࣝࢱࢆ฼⏝ࡋ࡚ࡶ࡯ࡰྠᵝࡢ㏻ಙᛶ⬟ࡀᚓࡽࢀࡿࡇ࡜ࡀศ࠿ࡿࠋࡇࢀࡽࡢ
⤖ᯝࡼࡾタィࣇ࢕ࣝࢱࡣィ⟬㔞ࢆ኱ᖜ࡟๐ῶࡋ࡚ࡶⰋዲ࡞㏻ಙᛶ⬟ࡀᚓ
ࡽࢀ GMM ࡢ㧗ຠ⋡໬࡟ࡘ࡞ࡀࡿࠋ

ᅗ 3㸸タィࣇ࢕ࣝࢱࡢ㏻ಙᛶ⬟࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ᅜ㝿࣭ᅜෆ఍㆟㸼࣭ ኱᳃᳃᫓㸪᳚ᮏ௓ኈ㸪࿴⏣ᛅᾈ㸪͆GNURadio ࢆ⏝࠸ࡓὶᫍࣂ࣮ࢫࢺ㏻ಙ⏝↓⥺ᶵ࡟࠾ࡅࡿ RRC ࣇ࢕ࣝࢱࡢᐇ⌧࡟ࡘ࠸࡚㸪͇㟁Ꮚ᝟ሗ㏻ಙᏛ఍ᢏ⾡◊✲ሗ࿌࣡࢖ࢻࣂࣥ
ࢻࢩࢫࢸ࣒◊✲఍㸪࢜ࣥࣛ࢖ࣥ㛤ദ㸪2020 ᖺ 12 ᭶ 15 ᪥࣭࿴⏣ᛅᾈ㸪᳚ᮏ௓ኈ㸪ࡑࡢ௚㸪͆㉥㐨ᆅᇦ࡜ ༡ᴟᆅᇦࡢὶᫍࣂ࣮ࢫࢺ㏻ಙ≉ᛶࡢẚ㍑㸪
͇㟁Ꮚ᝟ሗ㏻ಙᏛ఍ᢏ⾡◊✲ሗ࿌࣡࢖ࢻࣂࣥࢻࢩࢫࢸ࣒◊✲఍㸪࢜ࣥࣛ࢖ࣥ㛤ദ㸪2020ᖺ 7 ᭶ 21 ᪥85ู⣬ᵝᘧ㸰㸫㸰࿘㎶⎔ቃࢹ࣮ࢱࢆά⏝ࡋࡓࢩ࢙࢔ࣜࣥࢢ⮬ື㐠㌿ࢱࢡࢩ࣮ࡢ◊✲Shared autonomous taxi systems based on data from environment perception ofautonomous taxies
Peng Cao࣭Southwest Jiaotong University, School of Transportation andLogistics࣭෸ᩍᤵ
୕㍯ᐩ⏕࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ࣭෸ᩍᤵ
㸯㸬◊✲┠ⓗ ᑗ᮶㸪஺㏻⟶⌮ࢩࢫࢸ࣒࡜᥋⥆ࡉࢀࡓࢥࢿࢡࢸ࢕ࢵࢻ࣮࢝࡟ࡼࡿ㐨㊰஺㏻ࢧ࣮ࣅࢫࡀ
ᐇ⌧ࡍࡿ࡜⪃࠼ࡽࢀࡿ㸬≉࡟㸪⮬ື㐠㌿㌴ࡀᗈࡃᬑཬࡋࡓሙྜ࡟ࡣ㸪㐨㊰ୖࡢ㌴୧ࡢከࡃࡣ⮬ື㐠㌿ࢱࢡࢩ࣮࡟࡞ࡿ࡜⪃࠼ࡽࢀࡿ㸬ࡇࢀࡽ㌴୧ࡣ㸪࿘ᅖࡢ㌴୧ࡸ㞀ᐖ≀㸪㉮⾜ࡍࡿ㐨㊰ࡢ஺㏻ὶ࡞࡝ࢆィࡍࡿከᵝ࡞ࢭࣥࢧ࣮ࡀᦚ㍕ࡉࢀ࡚࠾ࡾ㸪ࡑࢀ࡟ࡼࡗ࡚ᚓࡽ

ࢀࡓ᝟ሗࢆά⏝ࡍࡿࡇ࡜࡛㸪ࡼࡾຠ⋡ⓗ࡞஺㏻ὶ⟶⌮ࡀྍ⬟࡟࡞ࡿ࡜⪃࠼ࡽࢀࡿ㸬ࡋ࠿ࡋ࡞ࡀࡽ㸪ከᵝ࡞ࢭࣥࢧ࣮ࢆᦚ㍕ࡋࡓ㌴୧㸪ࡶࡋࡃࡣࢭࣥࢧ࣮ࢹ࣮ࢱࢆ஺㏻ὶ⟶⌮ࡢࡓࡵ࡟౑⏝࡛ࡁࡿ㌴୧ࡢᵓᡂ๭ྜࡣ 100%࡜ࡣ࡞ࡽ࡞࠸㸬ࡇࡢࡓࡵ㸪ࡑࡢ௚ࡢ୍⯡㌴࡜ࡢ
ΰᅾ๭ྜࢆ⪃៖ࡋࡘࡘ㸪ᡭἲࡢጇᙜᛶࢆホ౯ࡍࡿᚲせࡀ࠶ࡿ㸬ᮏ◊✲࡛ࡣ㸪㌴୧࿘㎶⎔ቃࢹ࣮ࢱࡀ฼⏝࡛ࡁࡿ㌴୧ࡀ஺㏻ὶ࡟༨ࡵࡿ๭ྜࢆ⪃៖ࡋࡘࡘ㸪ከᵝ࡞ࢭࣥࢧ࣮ࢹ࣮ࢱࢆά⏝ࡋࡓ஺㏻≧ἣࡢ᥎ᐃᡭἲࢆᵓ⠏ࡍࡿࡇ࡜ࢆ┠ᣦࡍ㸬㸰㸬◊✲ෆᐜ࡜ᡂᯝ ௒ᖺᗘࡣ㸪ࢥࢿࢡࢸ࢕ࢵࢻ࣮࢝ࡢ㉮⾜ືែ࠾ࡼࡧ࿘㎶㌴୧ࡢ⛣ື㌶㊧㸪࠾ࡼࡧ㊰ഃほᅗ ㌴⥺ู㉮⾜㏿ᗘ᥎ᐃࣔࢹࣝࡢࣇ࣮࣒࣮ࣞ࣡ࢡ

86ࢹ࣮ࢱࢆ⤌ࡳྜࢃࡏ࡚㸪㌴⥺ู㉮⾜㏿ᗘࢆ᥎ᐃࡍࡿᡭἲࢆ᳨ウࡋࡓ㸬᳨ウࡋࡓᡭἲࡣ
ᣑᙇ࣐࢝ࣝࣥࣇ࢕ࣝࢱ࣮㸦EKF㸧࡛࠶ࡾ㸪ほ㏻ὶࢹ࣮ࢱࢆ࣐ࢡࣟ஺㏻ὶࣔࢹࣝ㸪࠾ࡼࡧ஺ᐃࣔࢹࣝࢆ௓ࡋ㸪ࡉࡽ࡟ EKF ࡟ࡼࡗ࡚ᑗ᮶ࡢ㌴⥺ู㏿ᗘ࠾ࡼࡧ஺㏻ᐦᗘࢆ᥎ᐃ

ࡍࡿࡇ࡜ࡀ࡛ࡁࡿ㸦ᅗ㸧㸬 ᮏᖺᗘࡢ◊✲࡛ࡣ㸪⡿ᅜ࢝ࣜࣇ࢛ࣝࢽ࢔ᕞࡢ㧗㏿㐨㊰ I-80 ࡛཰㞟ࡉࢀࡓ࣮࢜ࣉࣥࢹ
࣮ࢱ࡛࠶ࡿ㸪NGSIM ࢹ࣮ࢱࢭࢵࢺࢆ⏝࠸ࡿ㸬ࡇࡢࢹ࣮ࢱ࡟ࡣ㸪HOV ࣮ࣞࣥࢆྵࡴ 6 ㌴⥺ࡢ㐨㊰࡛ィ

ࡉࢀࡓ㸪ヲ⣽࡞㌴୧㌶㊧ࢹ࣮ࢱࡀ᱁⣡ࡉࢀ࡚࠸ࡿ㸬 ᥦ᱌ᡭἲ࡟ࡼࡿ஺㏻≧ែࡢ᥎ᐃ⤖ᯝࢆ⾲࡟♧ࡍ㸬ࡇࡇ࡛ࡣ㸪ࢥࢿࢡࢸ࢕ࢵࢻ࣮࢝ࡢΰ
ධ๭ྜࢆ㸯㸣࠿ࡽ㸳㸣ࡲ࡛ኚ໬ࡉࡏ࡚࠸ࡿ㸬⾲࠿ࡽศ࠿ࡿࡼ࠺࡟㸪ほ್ࡢᖹᆒ್➼ࢆࡑࡢࡲࡲ⏝࠸ࡿࡼࡾ㸦SA㸩ICVD㸧㸪ᥦ᱌ࡋࡓ EKF ࢆ⏝࠸ࡿࡇ࡜࡛㸪㉮⾜㏿ᗘࡢ᥎ᐃ⢭ᗘࡀ኱ᖜ࡟ᨵၿࡍࡿࡇ࡜ࡀศ࠿ࡿ㸬ࡋ࠿ࡋ࡞ࡀࡽ㸪஺㏻ᐦᗘࡢ᥎ᐃ⢭ᗘࡣࡑࢀ࡯࡝ྥୖ࡞࠿ࡗࡓ㸬 ௒ᚋࡣ㸪஺㏻ᐦᗘࡢ᥎ᐃ⢭ᗘࢆྥୖࡉࡏࡿ┠ᣦࡋ㸪㌴⥺ู㌴୧ศᕸࡢ᫬✵㛫ኚ໬ࢆ᥎ᐃࡍࡿ᪉ἲࢆ᳨ウࡍࡿணᐃ࡛࠶ࡿ㸬⾲ ᥦ᱌ࣔࢹࣝ࡟ࡼࡿ㏿ᗘ࡜஺㏻ᐦᗘࡢ᥎ᐃ⤖ᯝ
penetration
scheme

rate

speed

density

RMSE

MAPE

RMSE

MAPE

1%

7.62

51.6%

0.0402

71.6%

3%

3.31

14.3%

0.0280

37.4%

5%

1.81

4.8%

0.0173

19.5%

1%

2.34

16.7%

0.0317

58.1%

3%

1.69

8.8%

0.0255

36.9%

5%

1.52

6.5%

0.0170

23.5%

EKF+

1%

2.18

15.3%

0.0271

53.3%

ICVD+

3%

1.67

8.5%

0.023934.5%

FDD+PVD

5%

1.53

6.6%

0.016322.7%

of ICVs

SA+ICVDEKF+
ICVD+FDD࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ᅜ㝿࣭ᅜෆ఍㆟㸼࣭ Cao, P., Zhang, Z., Miwa, T. and Liu, X.: Estimaing freeway Lane-level traffic state withintelligent connected vehicles equipped with ranging sensors, 2021 World Transport
Convention, 㸦ᢞ✏୰㸧࣭ Cao, P., Sun, J., Miwa, T. and Liu, X.: Real-time estimation of lane-based queue lengths on
expressways using instrumented vehicle data, 2021 World Transport Convention, 㸦ᢞ✏୰㸧87ู⣬ᵝᘧ㸰㸫㸰ࣂ࢖࢜࢞ࢫ฼⏝ H2 〇㐀཯ᛂჾࡢ㧗ᛶ⬟໬࡟ྥࡅࡓ㐠㌿᮲௳ࡢ᳨ウ
Investigation on Operation Condition for High Performance of H2 Production Reactor
Utilizing Biogas
すᮧ㢧࣭୕㔜኱Ꮫ኱Ꮫ㝔࣭ᕤᏛ◊✲⛉࣭෸ᩍᤵ㧗⏣▱ᣅ࣭୕㔜኱Ꮫ࣭ᕤᏛ◊✲⛉࣭B4᳜ᮌಖ᫛࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱࢩࢫࢸ࣒◊✲ᡤ࣭෸ᩍᤵ
㸯㸬◊✲┠ⓗ ᮏ◊✲࡛ࡣࣂ࢖࢜࢞ࢫ࡟╔┠ࡋࡓ㸬ࣂ࢖࢜࢞ࢫࡣ㸪⏕ࡈࡳ㸪ᐙ␆⣅ᒀ㸪ୗỈởἾ➼ࢆཎᩱ࡜ࡋ࡚㸪᎘Ẽᛶᚤ⏕≀ࡀാࡃ࣓ࢱࣥⓎ㓝࡛⏕ᡂࡍࡿẼయ⇞ᩱ࡛࠶ࡿ㸬ᮏ◊✲࡛ࡣ㸪ࣂ࢖࢜࢞ࢫ࠿ࡽࢻࣛ࢖ࣜࣇ࢛࣮࣑ࣥࢢ㸦CH4 + CO2 Ѝ 2H2 + 2CO㸧࡛ H2 〇㐀ࡋ㸪⇞ᩱ㟁ụⓎ㟁ࡍࡿࢩࢫࢸ࣒ࢆᥦ᱌ࡍࡿ㸬ࡑࡋ࡚㸪ࣂ࢖࢜࢞ࢫ฼⏝ H2 〇㐀཯ᛂჾࡢ㧗ᛶ⬟໬࡟ࡘ࡞ࡀࡿ㐠㌿᮲௳ࡢゎ᫂ࢆ◊✲┠ⓗ࡜ࡍࡿ㸬㸰㸬◊✲ෆᐜ࡜ᡂᯝ
ୖグ◊✲┠ⓗࢆ㐩ᡂࡍ࡭ࡃ㸪ᅗ 1 ࡟♧ࡍࡼ࠺࡞ᐇ㦂⿦⨨ࢆタィ㸪〇సࡋࡓ㸬ࡲࡓᅗ 2࡟ࡣ౑⏝ࡋࡓ Ni ゐ፹ࢆ♧ࡍ㸬᭱኱ᖹᆒ⣽Ꮝᚄ 1.9 mm ࡛㸪7 ಶ཯ᛂჾෆ࡟඘ሸࡋࡓ㸬ࡑࡢ㝿ࡢゐ፹⥲㔜㔞ࡣ 48.2 g ࡛࠶ࡿ㸬 H2 ศ㞳࡟ࡣཌࡉ 60 Pm ࡢ Pd/Cu ⭷㸦Cu㸸40 wt%㸧ࢆ౑⏝ࡋࡓ㸬

ᅗ 1 ᐇ㦂⿦⨨ᶍᘧᅗ

ᅗ 2 Ni ゐ፹88ᗘࢆ 400Υ㸪500Υ㸪600Υ࡜ኚ໬ࡉࡏ࡚㸪ὶධ࢞ࢫᅽຊࢆ኱Ẽᅽ࡜ࡋࡓ཯ ཯ᛂᵴෆ

ᛂᐇ㦂ࢆ⾜ࡗࡓ㸬ࡑࡢ㝿ࡢ CH4 ࡜ CO2 ࡢᶍᨃࣂ࢖࢜࢞ࢫࡢὶධ࢞ࢫࣔࣝẚࡣ CH4㸸CO2
㸻1.5㸸1㸪1㸸1㸪1㸸1.5 ࡜ࡋࡓ㸬⾲ 1 ࡟ࡑࡢ᫬ࡢὶ㔞ࢆ♧ࡍ㸬ࡲࡓ㸪ᤲẼᵴ࡟ὶධࡉࡏࡿ
Ar ࢞ࢫࡢὶ㔞ࡣ㸪CH4 ࡜ CO2 ࡢᶍᨃࣂ࢖࢜࢞ࢫࡢྜィὶ㔞ࢆᇶ‽࡜ࡋ࡚㸪➼㔞౪⤥ࡋࡓ㸬ࡉࡽ࡟㸪ᤲẼᵴഃᅽຊࢆ 0.45105㸪0.90105㸪1.00105 Pa ࡜ኚ໬ࡉࡏ࡚ศ㞳ᕪᅽࢆኚ໬ࡉࡏࡓ㸬⾲ 1 ྛὶධ࢞ࢫࣔࣝẚ᮲௳࡟࠾ࡅࡿ CH4㸪CO2 ࢞ࢫὶ㔞[NL/min] ᅗ 3 ࡟ὶධ࢞ࢫࣔࣝẚ CH4㸸CO2㸻1.5㸸1 ࡛ࡢᤲẼᵴᅽຊ࡜ H2 ⃰ᗘࡢ㛵ಀࢆ཯ᛂᵴ࡜ᤲ
Ẽᵴ࡟ࡘ࠸࡚♧ࡍ㸬཯ᛂᵴࡢᗘࡢᙳ㡪ࡶేࡏ࡚ホ౯ࡋࡓ㸬ᮏᅗ࠿ࡽ㸪཯ᛂᵴෆᗘࡀ㧗ࡃ࡞ࡿ࡯࡝ H2 ⃰ᗘࡀ㧗ࡃ࡞ࡿഴྥࡀㄆࡵࡽࢀࡓ㸬ࡲࡓ㸪㧗 ࡢ᪉ࡀ H2 ศ㞳ࡢຠᯝࡶ㧗ࡃ࡞ࡿ㸬ຍ࠼࡚㸪ᤲẼᵴᅽຊࢆపᅽ࡟ࡍࡿ࡜ᤲẼᵴࡢ H2 ⃰ᗘࡀቑຍࡋ㸪H2 ศ㞳ಁ㐍ࡉࢀࡿࡇ࡜
ࡀ☜ㄆࡉࢀࡓ㸬ᅗ 3 ὶධ࢞ࢫࣔࣝẚ CH4㸸CO2㸻1.5㸸1 ࡛ࡢᤲẼᵴᅽຊ࡜ H2 ⃰ᗘࡢ㛵ಀ㸦ᕥ㸸཯ᛂᵴ㸪ྑ㸸ᤲẼᵴ㸧࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ཎⴭㄽᩥ㸼
1. Akira Nishimura, Satoshi Ohata, Kaito Okukura and Eric Hu, Impact of Operation
Condition on Performance of CH4 Dry Reforming Membrane Reactor for H2 Production,
Journal of Energy and Power Technology, Vol.2, Issue 2, DOI:10.21926/jept.2002008(2020).

89ู⣬ᵝᘧ㸰㸫㸰ᶵᲔⓗᰂ㌾ᛶࢆ♧ࡍ㏱࢚᫂࢔ࣟࢤࣝࡢస〇
3UHSDUDWLRQRIWUDQVSDUHQWDHURJHOVZLWKPHFKDQLFDOIOH[LELOLW\◊✲௦⾲⪅ 㔠᳃୺⚈࣭ி㒔኱Ꮫ࣭኱Ꮫ㝔⌮Ꮫ◊✲⛉࣭ຓᩍ◊✲ศᢸ⪅ ୖᒸⰋኴ࣭ி㒔኱Ꮫ࣭኱Ꮫ㝔⌮Ꮫ◊✲⛉࣭༤ኈᚋᮇㄢ⛬  ᖺ◊✲ศᢸ⪅ ཎ ⍱భ࣭ி㒔኱Ꮫ࣭኱Ꮫ㝔⌮Ꮫ◊✲⛉࣭༤ኈᚋᮇㄢ⛬  ᖺ◊✲ᡤᢸᙜᩍဨ ୰す࿴ᶞ࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ࣭ᩍᤵ
◊✲ᡤᢸᙜᩍဨ 㛗㇂ᕝ୔஧࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ࣭≉௵෸ᩍᤵ
㸯㸬◊✲┠ⓗ ࣓ࢯࢫࢣ࣮ࣝࡢᩚࡗࡓ⣽Ꮝᵓ㐀ࢆࡶࡘ࢚࢔ࣟࢤࣝࡣ㏱࡛᫂⇕ఏᑟ⋡ࡀᴟࡵ࡚పࡃࠊ㧗ᛶ⬟࡞᩿⇕ᮦ࡜ࡋ࡚฼⏝ྍ⬟࡞ከᏍయ࡛࠶ࡿࠋࡋ࠿ࡋ࡞ࡀࡽᶵᲔⓗᙉᗘࡀ㠀ᖖ࡟ప࠸ࡓࡵࠊࡇࢀࡲ࡛࡟኱つᶍ࡞ᛂ⏝࡟⧅ࡀࡗࡓ౛
ࡣᏑᅾࡋ࡞࠸ࠋᮏ◊✲࡛ࡣࠊᚑ᮶ࡢ࢚࢔ࣟࢤࣝࡢᶵᲔⓗᙉᗘࡸᰂ㌾ᛶࢆᨵၿࡋࠊࡼࡾ⡆౽࡞ྲྀࡾᢅ࠸ࡀྍ⬟࡞࢚࢔ࣟࢤࣝࢆᚓࡿࡇ࡜ࠊࡑࡋ࡚ࡑࡢᇶᮏⓗ࡞ᵓ㐀࣭≀ᛶホ౯ࢆ⾜࠺ࡇ࡜࡛ᕤᴗⓗ࡟฼⏝ྍ⬟࡞࢚࢔ࣟࢤࣝࢆ㛤Ⓨࡍࡿࡇ࡜ࢆ┠ⓗ࡜ࡍࡿࠋ
㸰㸬◊✲ෆᐜ࡜ᡂᯝ
࣭᭷ᶵ㸫↓ᶵࣁ࢖ࣈࣜࢵࢻ࢚࢔ࣟࢤࣝࡢస〇 ࣛࢪ࢝ࣝ㔜ྜ࡜ࢰࣝíࢤࣝἲࢆ⤌ࡳྜࢃࡏࡓᡭἲ࡟ࡼࡾࠊⅣ໬Ỉ⣲㙐࡜࣏ࣜࢩࣟ࢟ࢧࣥࡀඹᏑࡋࡓࢿࢵࢺ࣡
࣮ࢡࢆᙧᡂࡉࡏࠊᖖᅽ஝⇱ࡲࡓࡣ㉸⮫⏺஝⇱ࢆ⾜࠺ࡇ࡜࡛ከᏍ㉁஝⇱ࢤࣝ㸦࢚࢔ࣟࢤࣝ㸧ࢆᚓࡓࠋලయⓗ࡟ࡣࠊ㔜ྜ㒊఩ࢆ᭷ࡍࡿࣅࢽࣝࢺ࣓ࣜࢺ࢟ࢩࢩࣛࣥ 9706 ࢆࣛࢪ࢝ࣝ㛤ጞ๣࡟ࡼࡗ࡚㔜ྜࡉࡏࠊศᏊ㔞  ከศᩓᗘ MZMQ  ⛬ᗘࡢ࢜ࣜࢦ࣐࣮ 39706 ࢆᚓࡓࠋ᪤࡟ྍどග㏱㐣ᛶ࡟ඃࢀࡓ࢚࢔ࣟࢤࣝࡢస〇ࡀሗ࿌ࡉࢀ࡚
࠸ࡿ࣓ࢳࣝࢺ࣓ࣜࢺ࢟ࢩࢩࣛࣥ 0706 ࢆࠊ39706 ࡜ᡤᐃࡢయ✚ẚ࡛ΰྜࡋࠊ◪㓟࣭Ỉ࣭࣓ࢱࣀ࣮ࣝ⁐፹࠾ࡼࡧ㠀࢖࢜ࣥᛶ⏺㠃άᛶ๣ 3OXURQLF/ ࡢඹᏑୗ࡛ຍỈศゎ཯ᛂࢆ⾜ࡗࡓᚋࠊ᭷ᶵᙉሷᇶ࡛࠶ࡿỈ㓟ࢸࢺ࣓ࣛࢳࣝ࢔ࣥࣔࢽ࣒࢘ 70$2+ ࢆΰྜࡍࡿࡇ࡜࡟ࡼࡾࢤࣝ໬ࡉࡏࡓࠋᚓࡽࢀࡓ‵₶ࢤࣝࢆ⇍ᡂᚋࠊὙίฎ⌮ࢆ⾜ࡗ࡚⏺㠃άᛶ๣࠾ࡼࡧ⁐፹ᡂศࢆ㝖ཤࡋࠊ᭱⤊ⓗ࡟࢖ࢯࣉࣟࣆࣝ࢔ࣝࢥ࣮ࣝ࡟᏶඲⨨᥮ࡋࡓᚋࠊⅣ㓟࢞ࢫࢆసᴗẼయ࡜ࡋ࡚⏝࠸ࡿ㉸⮫⏺஝⇱ࢆ⾜ࡗ࡚ࠊ397060706 ඹ㔜ྜ⣔ࡢ࢚࢔ࣟࢤࣝࢆᚓࡓࠋ
࣭ᚓࡽࢀࡓࢤࣝヨᩱࡢᵓ㐀ほᐹ࡜≉ᛶホ౯ ᵝࠎ࡞ฟⓎ⤌ᡂࡢ 397060706 ඹ㔜ྜ⣔࢚࢔ࣟࢤࣝ࡟ࡘ࠸࡚ࠊ⤌ᡂࡸྜᡂ᮲௳ࡢ㐪࠸࡟ࡼࡾᚓࡽࢀࡿ⣽Ꮝ≉ᛶ࠾ࡼࡧ≀ᛶࡢ㐪࠸ࢆࠊ㟁Ꮚ㢧ᚤ㙾ほᐹࡸ࢞ࢫ྾╔ἲ࡞࡝ࢆ⏝࠸ࡿ࡜࡜ࡶ࡟ࠊ⣸እྍどศගගᗘィ࡟ࡼࡿ㏱㐣⋡࠾ࡼࡧᐦᗘ್ࢆ ᐃࡍࡿࡇ࡜࡟ࡼࡾヲࡋࡃ᳨ウࡋࡓࠋ௨ୗ࡛ࡣ๓㥑యΰྜ≀ࡢ⤌ᡂࢆ 0706 ࡢయ✚ศ⋡ y ࡟ࡼࡗ90ࠋy  ࡼࡾࡶ 0706 ࡢᑡ࡞࠸ฟⓎ⤌ᡂ࡛ࡣࢤࣝ໬ࡀ▷᫬㛫࡟㉳ࡇࡗࡓࡓࡵࠊࡼࡾ 0706
࡚⾲ࡍ㸦y V0706V727$/㸧࡟ᐩࡴ⤌ᡂ࡜ࡣ␗࡞ࡿ⁐፹⤌ᡂ࣭ゐ፹⃰ᗘ࡛ࢤࣝ໬཯ᛂࢆ⾜ࡗࡓࡀࠊᚓࡽࢀࡓࢤࣝࡣ࠸ࡎࢀࡶẚ㍑ⓗᐦᗘࡀ㧗ࡃࠊ
ྍどග㏱㐣⋡ࡶẚ㍑ⓗప࠸ࡇ࡜ࡀศ࠿ࡗࡓࠋy  ࡼࡾࡶ 0706 ࡟ᐩࡴฟⓎ⤌ᡂ࡟࠾࠸࡚ࡣࠊ࢚࢔ࣟࢤࣝࡢᐦᗘ࡜
ྍどග㏱㐣⋡ࡣࠊ0706 ศ⋡ࡢቑຍ࡜ඹ࡟ࡑࢀࡒࢀ⦆ࡸ࠿࡟పୗ࠾ࡼࡧቑຍࡋࡓ㸦ᅗ㸯࠾ࡼࡧ㸰㸧ࠋ ᅗ㸯 ๓㥑య୰ࡢ 0706 ศ⋡ y ࡢฟⓎ⤌ᡂ࠿ࡽస〇ࡋ ࡓ࢚࢔ࣟࢤࣝヨᩱࡢእほᅗ㸰 ๓㥑య୰ࡢ 0706 ศ⋡ y ࡟ᑐࡍࡿ࢚࢔ࣟࢤࣝヨᩱࡢྍどග㏱㐣⋡㸦‫ە‬㸧࠾ࡼࡧࣂࣝࢡᐦᗘ㸦ı㸧ḟ࡟ࠊᅽ⦰⋡ ࡲ࡛ࡢ୍㍈ᅽ⦰ヨ㦂࡟ࡼࡗ࡚ࠊᚓࡽࢀࡓ࢚࢔ࣟࢤࣝࡢᶵᲔⓗ≉ᛶࢆホ౯ࡋࡓࠋ\  ௨ୖ࡛ࡣ0706 ศ⋡ࡢቑຍ࡜ඹ࡟ࢤࣝヨᩱࡢࣖࣥࢢ⋡ࡣపୗࡋࠊṧ␃ṍࡳࡢ್ࡶ኱ࡁࡃ࡞ࡿഴྥࡀぢࡽࢀࡓࠋ39706 ࡟ᑐ
ࡍࡿ 0706 ࡢῧຍࡣࠊࢤࣝ⥙┠ࡢᆒ୍ᛶࢆྥୖࡋ࡚ྍどග㏱㐣⋡ࢆቑຍࡉࡏࡿ୍᪉࡛ࠊࢤࣝ⥙┠ෆ㒊ࡢᖹᆒⓗ࡞⤖ྜຊࢆᙅࡵࡿຠᯝࡀ࠶ࡿࡓࡵࠊ397060706 ඹ㔜ྜ⣔ࡢ࢚࢔ࣟࢤࣝࡣࠊy 㹼 ⛬ᗘࡢ 0706 ศ⋡࡟࠾࠸࡚ຊ
Ꮫᙉᗘ࡜ྍどග㏱㐣⋡ࡢᮃࡲࡋ࠸ࣂࣛࣥࢫࢆᐇ⌧࡛ࡁࡿࡇ࡜ࡀศ࠿ࡗࡓࠋ

࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ཎⴭㄽᩥ㸦ゎㄝ㸧㸼࣭୰す࿴ᶞ㸪㔠᳃୺⚈㸪᭳⃝Ᏺ㸪ᕝ℩᪼㸪ࠕ᭷ᶵ㸫↓ᶵࣁ࢖ࣈࣜࢵࢻ࡟ࡼࡿྍどග㏱㐣ᛶ㧗ᛶ⬟᩿⇕ᮦᩱࠖ㸪㓄⟶ᢏ⾡㸦᪥ᮏᕤᴗฟ∧㸧㸪 ᕳ  ᖺ  ᭶  㸺ᅜ㝿࣭ᅜෆ఍㆟㸼࣭୰す࿴ᶞ㸪
ࠕ᭷ᶵ↓ᶵࣁ࢖ࣈࣜࢵࢻ࢚࢔ࣟࢤࣝ࡟ࡼࡿྍどග㏱㐣ᛶ㉸᩿⇕ᮦᩱࠖ㸪᪥ᮏᮦᩱᏛ఍ᮾᾏᨭ㒊➨ ᅇᏛ⾡ㅮ₇఍㸦≉ูㅮ₇㸧㸪࢜ࣥࣛ࢖ࣥ㛤ദ㸪 ᖺ  ᭶  ᪥㸺⏘ᴗ㈈⏘ᶒ㸼࣭ヱᙜ࡞ࡋ91ู⣬ᵝᘧ㸰㸫㸰┬࢚ࢿࣝࢠ࣮ᆺ࢚ࣥࢪࣥࡢ᤼Ẽί໬ゐ፹ࡢ◊✲
Development of exhaust-treatment catalysts for the energy saving engines⩚⏣ ᨻ࣭᫂ྡྂᒇᕤᴗ኱Ꮫ࣭ඛ㐍ࢭ࣑ࣛࢵࢡࢫ◊✲ࢭࣥࢱ࣮࣭ᩍᤵᒣ⏣ 㐩ᘺ࣭ྡྂᒇᕤᴗ኱Ꮫ࣭⏕࿨࣭ᛂ⏝໬Ꮫᑓᨷ࣭㝔⏕ᑠ⃝ ṇ㑥࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ࣭ᩍᤵ᭹㒊 ᑗ᭸࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ࣭ຓᩍ㸯㸬◊✲┠ⓗⅣ໬Ỉ⣲㸦+&㸧ࡸ୍㓟໬Ⅳ⣲㸦&2㸧ࢆ㧗ຠ⋡࡟ί໬ࡍࡿࡓࡵࡢゐ፹㛤Ⓨࡣࠊ᭱㏆ࡢ᪂ࢩࢫࢸ࣒࡟ᑐᛂࡋ࡚ࠊᵝࠎ࡞ᶵ⬟ࢆᚲせ࡜ࡋ࡚࠸ࡿࠋ㧗ᛶ⬟໬ࡢࡓࡵࠊᮦᩱⓗ࡟ࡣ㈗㔠
ᒓ㔞ࢆከࡃࡍࡿࡇ࡜࡛ᑐᛂࡋ࡚࠾ࡾࠊ┬࢚ࢿࣝࢠ࣮࣭⎔ቃಖ඲ࡢほⅬ࠿ࡽࡣዲࡲࡋࡃ࡞
࠸ࠋప࡛ࡶ㧗άᛶ࡞ゐ፹ࡢ㛤Ⓨࡀᐇ⌧࡛ࡁࢀࡤࠊࡇࢀࡲ࡛௨ୖࡢప⇞㈝ᆺ࢚ࣥࢪࣥࡢ

ᐇ⌧ࡀᮇᚅ࡛ࡁࡿࠋゐ፹ᶵ⬟ࡢᮏ㉁ゎ᫂࡟ྥࡅࡓᇶ┙ⓗ◊✲࡟ྲྀࡾ⤌ࡴࡇ࡜࡛ࠊ㧗άᛶゐ፹ࡢ㛤Ⓨ࡟⧅ࡀࡿタィᣦ㔪ࢆ᫂ࡽ࠿࡟ࡋࠊゐ፹ᢏ⾡࠿ࡽ࢚ࣥࢪࣥࡢప⇞㈝໬ᐇ⌧࡟㈉⊩ࡍࡿࡇ࡜ࡀ࡛ࡁࠊᮏ◊✲࡛ࡣࡑࡢᇶ♏࡜ࡋ࡚ࠊ㈗㔠ᒓ࡜ᢸయࡢ⤌ྜࢃࡏ࡟ࡼࡿᛶ⬟ྥୖࢆ᳨ウࡍࡿࠋ
㸰㸬◊✲ෆᐜ࡜ᡂᯝ
᤼࢞ࢫί໬ゐ፹ࡢ୺ᡂศࡣ㈗㔠ᒓ࡜㓟໬≀࡛࠶ࡿࡀࠊ୧⪅ࡢ㛫࡛⏕ࡌࡿ┦஫స⏝㸦ᵓ㐀ⓗࠊ㟁Ꮚⓗ㸧࡟ࡼࡾゐ፹ᶵ⬟ࡀ኱ࡁࡃኚ໬ࡍࡿࡇ࡜ࡀ▱ࡽࢀ࡚࠸ࡿࠋ཯ᛂࡣࠊ୺࡟㈗㔠ᒓୖ࡛ゐ፹཯ᛂࡀ㐍⾜ࡍࡿ࡜ࡉࢀ࡚࠸ࡿࡀࠊゐ፹࡟ࡼࡗ࡚㈗㔠ᒓ࡜㓟໬≀ࡢ⏺㠃ࡀ㧗࠸ゐ፹ᶵ⬟ࢆⓎ⌧ࡍࡿ࡜⪃࠼ࡽࢀ࡚࠸ࡿࠋ
ࡑࡇ࡛ࠊゐ፹ࡢ᭦࡞ࡿ㧗ᶵ⬟໬ࡢࡓࡵ࡟ࡣ⏺㠃࡛⏕ࡌࡿ⌧㇟ࢆゎ᫂ࡋࠊゐ፹タィ࡟཯ᫎࡉࡏࡿࡇ࡜ࡀ㔜せ࡛࠶ࡿࠋᮏ◊✲࡛ࡣࠊ㈗㔠ᒓ㸦Pd ࡸ Pt㸧࡜㓟໬≀㸦Al2O3 ࡸCeO2-ZrO2㸧ࡢ⤌ࡳྜࢃࡏࢆኚ࠼ࡓゐ፹࡟ࡘ࠸࡚ࠊᵝࠎ࡞ฎ⌮㸦㓟໬/㑏ඖ㞺ᅖẼ㸧ࢆ᪋ࡍࡇ࡜࡛㈗㔠ᒓ㸫㓟໬≀ࡢ⏺㠃≉ᛶࢆኚ໬ࡉࡏࠊࡑࢀࡽࡢ᤼࢞ࢫί໬ᛶ⬟ࡸゐ፹⾲㠃≧ែࢆゎᯒࡋࠊ⏺㠃≉ᛶ࡜ゐ፹ᛶ⬟࡜ࡢ㛵㐃ᛶࢆ᫂ࡽ࠿࡟ࡍࡿࡇ࡜ࢆ᳨ウࡋࡓࠋ㓟⣲ࡢ⛣ືᛶ࣭཯ᛂᛶ࡟╔┠ࡋࠊྠ఩య㓟⣲㸦18O2㸧ࡢືⓗ࡞ᣲືࢆほᐹࡍࡿࡇ࡜
࡟ࡼࡿ㈗㔠ᒓ㸫㓟໬≀⏺㠃࡟཯ᛂ≉ᛶ࡟㛵ࡍࡿ▱ぢࢆᚓࡿࡇ࡜ࢆ᳨ウࡋࠊ㈗㔠ᒓ࡜㓟໬≀ࡢ⏺㠃࡛㉳ࡇࡿ⌧㇟ࢆゎ᫂ࡋࡓࠋάᛶ✀ࡀ᭷ຠ࡟స⏝ࡍࡿࡓࡵࡢ᭱㐺࡞཯ᛂሙࢆᵓ⠏ࡋࠊᚑ᮶࡜ࡣ␗࡞ࡿᶵ⬟ࢆ᭷ࡍࡿゐ፹ࢆసᡂࡋࠊࡑࢀࡽ࡟ࡘ࠸࡚ࠊྛ✀ศගἲ㸦XPS㸪IRࠊ࣐ࣛࣥ࡞࡝㸧ࢆ⏝࠸ࡓ⾲㠃ゎᯒࡸ཯ᛂゎᯒࢆ⾜࠸ࠊゐ፹స⏝ࡢཎ⌮ཎ๎࡟ᇶ࡙࠸ࡓゐ፹ᮦᩱ㛤Ⓨ◊✲ࢆᐇ᪋ࡋࠊ㧗άᛶ࡜໬Ꮫᵓ㐀ࡢ㛵ಀࢆ◊✲ࡋࠊ྾╔✀࡬ࡢ⏺㠃ࡢᙳ㡪ࢆ☜ㄆࡋࡓࠋ92࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ཎⴭㄽᩥ㸼࣭≉࡟࡞ࡋ㸺ᅜ㝿࣭ᅜෆ఍㆟㸼࣭ ≉࡟࡞ࡋ
㸺⏘ᴗ㈈⏘ᶒ㸼࣭≉࡟࡞ࡋ93ู⣬ᵝᘧ㸰㸫㸰ࢼࣀࢠࣕࢵࣉ㟁ᴟ࡟ࡼࡿ⎔ቃゐ፹⣲཯ᛂࡢ᳨ฟ
Detection of environmental catalytic reaction based on nanogap electrodes┿ᓥ㇏࣭ᮾிᕤᴗ኱Ꮫ࣭⛉Ꮫᢏ⾡๰ᡂ◊✲㝔ࣇࣟࣥࢸ࢕࢔ᮦᩱ◊✲ᡤ࣭ᩍᤵᑠ⃝ṇ㑥࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱࢩࢫࢸ࣒◊✲ᡤ࣭ᩍᤵ㸯㸬◊✲┠ⓗⓑ㔠ࢼࣀࢠࣕࢵࣉ㟁ᴟࡣࠊࢼࣀࢫࢣ࣮ࣝᮦᩱࢆࢠࣕࢵࣉ㛫࡟ᑟධࡍࡿࡇ࡜࡟ࡼࡾࠊ༢
୍ࢼࣀᮦᩱ࡟࠾ࡅࡿ㟁Ẽఏᑟࢆ᳨ウࡍࡿࡇ࡜ࡀ࡛ࡁࡿࠋⓑ㔠ࢼࣀࢠࣕࢵࣉ㟁ᴟ㛫࡟㓟໬≀ࢼࣀ⢏Ꮚࢆᑟධࡋࠊ㟁Ẽఏᑟࢆ ᐃࡍࡿࡇ࡜࡟ࡼࡾࠊゐ፹⣲཯ᛂࢆ᳨ฟࡍࡿࡇ࡜ࡀᮇ
ᚅࡉࢀࡿࠋ᤼࢞ࢫί໬ゐ፹࡜ࡋ࡚฼⏝ࡉࢀ࡚࠸ࡿ㓟໬≀ࢼࣀ⢏Ꮚࡣࠊⓑ㔠࡜⤌ࡳྜࢃࡏࡿࡇ࡜࡟ࡼࡾゐ፹άᛶࡀ㧗ࡃ࡞ࡿࡇ࡜ࡀ▱ࡽࢀ࡚࠸ࡿࠋࡋࡓࡀࡗ࡚ࠊࡇࡢࡼ࠺࡞ࢼࣀ㟁ᴟ㸭ࢼࣀ⢏Ꮚ⣔ࡣゐ፹ࣔࢹࣝ࡜ࡋ࡚᭱㐺࡛࠶ࡿࠋ
㟁Ꮚ⥺ࣜࢯࢢࣛࣇ࢕ (OHFWURQ%HDP/LWKRJUDSK\(%/ ࡟ࡼࡾࢼࣀࢠࣕࢵࣉ㟁ᴟࢆస〇ࡍࡿ࡜ࠊࢠࣕࢵࣉ㛗ࡀ QP ⛬ᗘ࡜࡞ࡿࠋࡇࡢࢠࣕࢵࣉ㛗ࡣࠊࣇ࢛ࢺࣜࢯࢢࣛࣇ࢕࣮
࡛స〇ྍ⬟࡞ࢠࣕࢵࣉ㛗࡜ẚ㍑ࡍࡿ࡜㸰᱆௨ୖ⊃࠸ࠋᮏ◊✲࡛ࡣࠊⓑ㔠ࢼࣀࢠࣕࢵࣉ㟁ᴟ㛫࡟ࢭࣜ࢔(CeO2)⣔ࢼࣀ⢏Ꮚࢆᑟධࡋࠊ࢞ࢫᑟධ᫬ࡢゐ፹⣲཯ᛂࢆ᳨ฟࡍࡿࡇ࡜ࢆ┠ⓗ࡜ࡍࡿࠋ
㸰㸬◊✲ෆᐜ࡜ᡂᯝ
㸰㸬㸯 ⓑ㔠ࢼࣀࢠࣕࢵࣉ㟁ᴟ㛫࡟ࢭࣜ࢔ࢼࣀ⢏Ꮚࢆᑟධࡋࡓ࢞ࢫࢭࣥࢧࡢస〇 ⓑ㔠ࢼࣀࢠࣕࢵࣉ㟁ᴟࡣࠊ⇕㓟໬ࢩࣜࢥࣥᇶᯈୖ࡟ࠊ㟁Ꮚ⥺ࣜࢯࢢࣛࣇ࢕(Electron
Beam Lithography: EBL)࡛ࢼࣀࢠࣕࢵࣉ㟁ᴟࠊࣇ࢛ࢺࣜࢯࢢࣛࣇ࢕࡛㟁ᴟࣃࢵࢻࢆࡑࢀࡒࢀస〇ࡋࡓࠋⓑ㔠ࢼࣀࢠࣕࢵࣉ㟁ᴟࡢ⪏⇕ᛶࡣࠊ࢔ࢽ࣮ࣝ ᗘ 500Υ࡛ᙧ≧ࡀኚ໬ࡋ࡞࠸ࡇ࡜ࢆ☜ㄆࡋࡓࠋ ࢭࣜ࢔ࢼࣀ⢏ᏊࡣࠊỈ⇕ἲ࡟ࡼࡾྜᡂࡋࡓࠋࢭࣜ࢔ࢥࣟ࢖ࢻ⁐ᾮࢆ⏝࠸ࡿࢹ࢕ࢵࣆࣥ
ࢢἲ࡟ࡼࡾࠊࢼࣀࢠࣕࢵࣉ㟁ᴟ࡟ศᩓࡉࡏࠊ࢔ࢽ࣮ࣝࡋࡓࠋSEM ほᐹ࡟ࡼࡗ࡚ࠊࢭࣜ
࢔ࢼࣀ⢏Ꮚࡀࢹ࢕ࢵࣆࣥࢢᚋࡢ࢔ࢽ࣮ࣝ࡟ࡼࡾࢼࣀࢠࣕࢵࣉ㛫ࢆ୍㒊㊬ࡄࡼ࠺࡟㓄⨨ࡉࢀศᩓࡋࠊ୍㒊ࡣ 2㹼5 ಶ࡛↝⤖ࡋ࡚࠸ࡿࡇ࡜ࢆ☜ㄆ࡛ࡁࡓࠋ
㸰㸬㸰 ࢭࣜ࢔ࢼࣀ⢏Ꮚⓑ㔠ࢼࣀࢠࣕࢵࣉ㓟⣲ࢭࣥࢧ≉ᛶ ࢭࣜ࢔ࢼࣀ⢏Ꮚࢆࢼࣀࢠࣕࢵࣉ㟁ᴟ㛫࡟ศᩓࡋࡓ⣲Ꮚ࡛ࠊ㓟⣲ᑟධ᫬ࡢᛂ⟅≉ᛶࢆᐃࡋࡓࠋ㓟⣲ᑟධ࡟ࡼࡾ㟁ὶࡀῶᑡࡋࠊ┿✵࡟ᡠࡍ࡜㟁ὶࡀቑຍࡍࡿ⌧㇟ࡀほᐹࡉࢀࡓࠋ
㟁ὶࡣ㓟⣲ศᅽ࡟౫Ꮡࡋ࡚ࠊ㓟⣲ศᅽࡀప࠸࡯࡝㟁ὶࡀ኱ࡁࡃ࡞ࡿ㓟⣲Ḟ㝗⃰ᗘ౫Ꮡᛶࢆ♧ࡋࡓࠋࡇࡢ⌧㇟ࡣࠊ㓟⣲Ḟஈ㞺ᅖẼ᮲௳࡛ࢭࣜ࢔⣔ᮦᩱࡀ♧ࡍ㓟⣲㈓ⶶ࣭ᨺฟ⌧㇟࡟ᑐᛂࡋ࡚࠾ࡾࠊᮏᡭἲࢆ⏝࠸ࡿ࡜ࠊ㓟⣲Ḟ㝗࡜㓟⣲ศᅽࡢᩄ㏿ኚ໬ࢆ࡜ࡽ࠼ࡿࡇ࡜ࡀ

94࡛ࡁࡿࡇ࡜ࡀศ࠿ࡗࡓࠋ㓟⣲ศᅽ࡟౫Ꮡࡋ࡚ࠊ㓟⣲✵Ꮝ⃰ᗘࡀኚ໬ࡋࠊ㟁Ẽఏᑟᗘࡀኚ
໬ࡍࡿࡇ࡜ࢆ♧ࡋ࡚࠸ࡿࠋ ࡇࡢࡼ࠺࡞ࢼࣀࢹࣂ࢖ࢫࡣࠊᚤᑠ㒊࡛ࡢ㓟⣲᳨ฟࢆྍ⬟࡟ࡍࡿ㓟⣲ࢭࣥࢧ࣮࡜ࡋ࡚ࡢ
ྍ⬟ᛶࢆ᭷ࡍࡿࠋᅗ㸯࡟ࠊࢹࣂ࢖ࢫࡢせ࡜࡞ࡿ㒊ศࡢࢼࣀ㟁ᴟᵓ㐀ࢆ♧ࡍࠋⓑ㔠㸭ࢭࣜ࢔⏺㠃ᗇࡣ 100㹼200nm ࡛ࠊ㓟⣲ࡢάᛶ໬࡟᭷ຠ࡞⏺㠃ࢆᙧᡂࡉࢀࡓᵓ㐀ࢆ♧ࡋ࡚࠸ࡓࠋ

(1) Y. Y. Choi, T. Teranishi, and Y. Majima. Appl. Phys. Express 12, 025002 (2019).

࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ཎⴭㄽᩥ㸼࣭ ≉࡟࡞ࡋ
㸺ᅜ㝿࣭ᅜෆ఍㆟㸼࣭ ≉࡟࡞ࡋ
㸺⏘ᴗ㈈⏘ᶒ㸼࣭≉࡟࡞ࡋ95ู⣬ᵝᘧ㸰㸫㸰⛥ⷧ⁐ᾮ࠿ࡽࡢ‵ᘧศ㞳࡟ࡼࡿࣃࣛࢪ࣒࢘ࡢ㑅ᢥศ㞳ᅇ཰
Palladium recovery via hydrometallurgical process from dilute solutionsᮌୗṊᙪ࣭ྡྂᒇᕷᕤᴗ◊✲ᡤ࣭ᮦᩱᢏ⾡㒊࣭୺௵◊✲ဨྡྂᒇ኱Ꮫ࣭ᮍ᮶♫఍๰㐀ᶵᵓ࣭ᐈဨᩍᤵ㸦වົ㸧ᑠ⃝ṇ㑥࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ࣭ᩍᤵ㸯㸬◊✲┠ⓗ⮬ື㌴ゐ፹ࡸ㟁Ꮚࢹࣂ࢖ࢫ࡬ࡢ㧗࠸㟂せࢆ᭷ࡍࡿࣃࣛࢪ࣒࢘ࡣࠊࣟࢩ࢔ࡸ༡࢔➼ࡢ㝈ࡽࢀࡓ⏕⏘ᅜ࠿ࡽࡋ࠿⏘ฟࡏࡎࠊᅜෆ㟂せࡢ  ๭ࢆ㍺ධ࡟౫Ꮡࡋ࡚࠸ࡿࡓࡵࠊᾏእࡢᨻ἞࣭㌷஦࣭⤒῭≧ἣ࡟኱ࡁ࡞ᙳ㡪ࢆཷࡅ᫆࠸ࠋࡑࡇ࡛ᮏ◊✲ࡣࠊᅜෆ⮬⤥ࢆ┠ᣦࡋࡓࣜࢧ࢖ࢡࣝ⋡ྥୖࢆ┠ᶆ࡜ࡋ࡚ࠊࡇࢀࡲ࡛᥇⟬ୖࡢ⌮⏤࡛ᐇ᪋ࡉࢀ࡞࠿ࡗࡓ⛥ⷧ⁐ᾮ࠿ࡽࡢࣃࣛࢪ࣒࢘ࡢ㑅ᢥศ㞳ᅇ཰ࢆࠊ㐃⥆ྥὶἻἓศ㞳ἲ࡛ᐇ᪋ࡋ࡚ᐇᾮ࠿ࡽࡢᅇ཰ࢆ⾜࠸ࠊᅜෆ࡟ศᩓࡍࡿ᤼Ỉ࣭ᗫỈᣐⅬ࡟࢜ࣥࢧ࢖ࢺタ⨨ࡋ࡚ప⎔ቃ㈇Ⲵ࣭పࢥࢫࢺ࣭㧗ຠ⋡࡟ࣃࣛࢪ࣒࢘ࡢᅇ཰ࢆ⾜࠺஦ࢆ┠ⓗ࡜ࡍࡿࠋ 㐃⥆ྥὶἻἓศ㞳ἲࡣࠊᚑ᮶ࡢἻἓศ㞳ἲ࡟ᑐࡋ࡚㔠ᒓ⁐ᾮ࡜⏺㠃άᛶ๣⁐ᾮࢆಶู࠿ࡘྠ᫬࡟Ἳἓ┦࡬⁲ୗࡍࡿ஦࡟ࡼࡾࠊᅇ཰ᑐ㇟≀ࡢᅇ཰⋡࡜㑅ᢥศ㞳ࢆྠ᫬࡟ྥୖࡉ
ࡏࡿࠊ᭷ᶵ⁐፹ࣇ࣮ࣜࡢ⏬ᮇⓗ࠿ࡘ㧗࠸⊂๰ᛶࡢศ㞳ἲ࡛࠶ࡿࠋࡇࢀࡲ࡛ࡢ᪤ ࡢ◊✲࡛ࡣ࣒࢞ࣜ࢘ࢆᅇ཰ᑐ㇟࡜ࡋ࡚ࠊள㖄⢭㘐ṧ´ࡢሷ㓟ᾐฟᾮ࠿ࡽ⛥ⷧ࡞࣒࢞ࣜ࢘ࢆ㧗⣧ᗘ⃰⦰ᾮ࡜ࡋ࡚᏶඲ᅇ཰ࡋࠊྠᾐฟᾮࢆ⏝࠸ࡓከẁ⁐፹ᢳฟ࡟ࡼࡿศ㞳ࢆ෽㥙ࡋࡓࠋ㸰㸬◊✲ෆᐜ࡜ᡂᯝ ࣃࣛࢪ࣒࢘ᢳฟヨ⸆࡜ࡋ࡚㛤Ⓨࡉࢀࡓࢳ࢜ࢪ
ࢢࣜࢥ࣮ࣝ࢔࣑ࢻ㸦TDGA㸧ࢆ⏝࠸࡚ࠊ⛥ⷧ⁐ᾮ࠿ࡽࡢࣃࣛࢪ࣒࢘ࡢ㑅ᢥศ㞳ᅇ཰ࢆ㐃⥆ྥὶἻἓศ㞳ἲ㸦CCFS㸧᳨࡛ウࢆ⾜ࡗࡓࠋTDGA ࡣỈ⁐ᾮ࡟⁐ゎࡋ࡞࠸ࡓࡵࠊࣀࢽ࢜ࣥ⏺
㠃άᛶ๣࡜ΰྜᨩᢾࡋࡓ࡜ࡇࢁࠊ㏱᫂࡞Ỉ⁐ᾮ࡜࡞ࡗࡓࠋᅗ 1 ࡟♧ࡍᵝ࡟ࠊỈ⁐ᾮ࡟ගࢆ↷ᑕࡋࡓ࡜ࡇࢁࠊࢳࣥࢲࣝ⌧㇟࡟ࡼࡿ᫂☜࡞㏱㐣ග㊰ࡢ  ᅗ 1 TDGA ⁐ᾮࡢࢳࣥࢲࣝ⌧㇟ྍど໬ࡀ☜ㄆࡉࢀࡓࠋࡇࢀࡣ TDGA ࡀ⏺㠃άᛶ๣࡟ಟ㣭ࡉࢀࡓἜ⁲࡜࡞ࡗ࡚Ỉ୰࡟ศᩓࡋ࡚࠸ࡿࡓࡵࠊ࡜᥎ࡉࢀࡿࠋ

CCFS ࡟࠾࠸࡚ TDGA ࡢ࠺ࡕࠊn-butyl TDGA ࡜ᕷ㈍ရ Pd-EX㸦methyl, n-hexyl TDGA㸧ࡢ 2 ✀ࢆࡑࢀࡒࢀ⏝࠸࡚ࠊࣃࣛࢪ࣒࢘ࠊⓑ㔠ࠊ㕲ࠊ㖡ࠊள㖄ࢆྵࡴከᡂศሷ㓟⁐ᾮ㸦ྛ㔠ᒓึ⃰ᗘ 20 ppm㸧࠿ࡽࡢࣃࣛࢪ࣒࢘㑅ᢥศ㞳ᅇ཰ࡢ⤒᫬ኚ໬ࢆㄪ࡭ࡓࠋࡑࡢ⤖ᯝࢆᅗ 2㸦n-butyl TDGA㸧࠾ࡼࡧᅗ 3㸦Pd-EX㸧࡟♧ࡍࠋࡇࡇ࡛ࡣΰྜ⁐ᾮࡢ TDGA ⃰ᗘࡣ
0.45 g/Lࠊࣀࢽ࢜ࣥ⏺㠃άᛶ๣⃰ᗘࡣ 4.0g/L ࡜ࡋࡓࠋ96ඛࡎ n-butyl TDGA ࡢ⣔࡛ࡣࠊᐇ㦂㛤ጞ 2 ᫬㛫ᚋ௨㝆࡟࠾࠸࡚Ᏻᐃࡋࡓ᧯సࡀྍ⬟࡛࠶ࡗࡓࠋἻἓ┦୰࡟኱ࡁ࡞㧼ࡀ㐃⥆ⓗ࡟Ⓨ⏕ࡋࡓࡓࡵἻἓᅇ཰ࡀ㛫Ḟⓗ࡜࡞ࡾࠊࡑࢀ࡟
క࠸ࣃࣛࢪ࣒࢘ᅇ཰⋡ࡀ 40 %⛬ᗘ࡟␃ࡲࡗࡓࠋࡑࡢ୍᪉࡛ࠊࣃࣛࢪ࣒࢘࡟ᑐࡍࡿࡑࢀ
ࡒࢀࡢ㔠ᒓ࡜ࡢศ㞳ᗘ㸦㔠ᒓึ⃰ᗘ࡟ᑐࡍࡿࣃࣛࢪ࣒࢘ࡢ⃰⦰ẚ/ዃ㞧㔠ᒓࡢ⃰⦰ẚ㸧ࡣẚ㍑ⓗ㧗࠸ศ㞳ᗘࢆ⥔ᣢࡋ࡚࠸ࡿࠋࡇࢀࡣἻἓ⾲㠃ୖࡢ TDGA Ἔ⁲ࡀศ㞳፹య࡜ࡋ࡚ᶵ⬟ࡋ࡚࠸ࡿ஦ࢆ♧၀ࡋ࡚࠸ࡿࠋ
ḟ࡟ Pd-EX ࡢ⣔࡛ࡣࠊ㧼ࡢⓎ⏕ࡣṤ࡝ぢࡽࢀࡎ㐃⥆ⓗ࡟Ἳἓࡣᅇ཰ࡉࢀ࡚㛗᫬㛫ࡢᏳᐃࡋࡓ᧯సࡀ☜ㄆ࡛ࡁࡓࠋࣃࣛࢪ࣒࢘ᅇ཰⋡ࡣศ㞳ᐇ㦂㛤ጞᚋ࠿ࡽ 3 ᫬㛫ᚋ࡟ 100 %࡟㐩ࡋࠊࡑࡢᚋࡶ᏶඲ᅇ཰ࢆ⥔ᣢࡋ࡚࠸ࡿࠋྛศ㞳ᗘࡶᅗ 2 ࡢ n-butyl TDGA ⣔ࡼࡾࡶ㧗࠸್ࢆ♧ࡋࠊ඘ศ࡞㑅ᢥศ㞳ᅇ཰ࢆ㐩ᡂࡋ࡚࠸ࡿࠋ
ࡲࡓᅗ 2 ࡜ 3 ࡢศ㞳ᅇ཰ᣲືࡢ㐪࠸࠿ࡽࠊTDGA ᮎ➃ᇶࡣἻἓᏳᐃᛶࡢࡳ࡞ࡽࡎศ
㞳ᛶ⬟࡟ࡶ኱ࡁ࡞ᙳ㡪ࢆ୚࠼ࡿ஦ࡀศ࠿ࡗࡓࠋ௒ᚋࡣ Pd-EX ࢆ⏝࠸ࡓ⣔࡛ࡢ᭱㐺ศ㞳᮲௳ࡢᑟฟࢆ⾜࠺ࠋ100
Sp Pd/Pt
Sp Pd/Fe

RPd [%]Sp Pd/Cu

100

40

10

20
0

0

1

1000

1000

Sp Pd/Zn

60

80

2

3
4
Time [hr]56RPd [%]

80

104

104

60
100

40

R Pd
Sp Pd/Pt

20

10

Sp Pd/FeSp Pd/Cu

0

1

SpPt, SpFe, SpCu, SpZn [-]R Pd

SpPt, SpFe, SpCu, SpZn [-]100

Sp Pd/Zn

0

1

2
3
4
Time [hrs]

5

6

1

ᅗ 2 n-butyl TDGA ⣔ࡢ㔠ᒓศ㞳ࡢ⤒᫬ኚ໬  ᅗ 3 Pd-EX ⣔ࡢ㔠ᒓศ㞳ࡢ⤒᫬ኚ໬࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ཎⴭㄽᩥ㸼࣭ ≉࡟࡞ࡋ
㸺ᅜ㝿࣭ᅜෆ఍㆟㸼࣭ ᮌୗṊᙪ㸪㐃⥆ྥὶἻἓศ㞳ἲ࡟ࡼࡿᕼᑡ㔠ᒓࡢศ㞳ᅇ཰㸪௧࿴ 2 ᖺᗘ Ἔ໬Ꮫㅮ₇఍ࠕἻࡢไᚚ࡜ά⏝ࠖ㸪ᮾளྜᡂᰴᘧ఍♫ ྡྂᒇᕤሙ㸪2020 ᖺ 11 ᭶ 12 ᪥㸺⏘ᴗ㈈⏘ᶒ㸼࣭≉࡟࡞ࡋ97ู⣬ᵝᘧ㸰㸫㸰ᙉⓗ⛛ᗎࢆ᭷ࡍࡿ≀㉁࡛ࡢ≉␗࡞ࢻ࣓࢖ࣥᵓ㐀࡜ᶵ⬟ᛶUnique Domain Structures and their Functionalities in Ferroic Marterials᳃ⱱ⏕࣭኱㜰ᗓ❧኱Ꮫ࣭኱Ꮫ㝔ᕤᏛ◊✲⛉࣭ᩍᤵ▼ᶫᗈグ࣭኱㜰ᗓ❧኱Ꮫ࣭኱Ꮫ㝔⌮Ꮫ⣔◊✲⛉࣭ㅮᖌሯᓮ⿱ᩥ࣭኱㜰ᗓ❧኱Ꮫ࣭኱Ꮫ㝔ᕤᏛ◊✲⛉࣭≉ㄆຓᩍෆᶫ◊ே࣭኱㜰ᗓ❧኱Ꮫ࣭኱Ꮫ㝔ᕤᏛ◊✲⛉࣭༤ኈ๓ᮇㄢ⛬ 2 ᖺ㛗⏣ᐇ࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ࣭ᩍᤵ㸯㸬◊✲┠ⓗ ᙉㄏ㟁యࡸᙉ☢ᛶయࠊᙉᙎᛶయ࡞࡝ᙉⓗ⛛ᗎࢆ᭷ࡍࡿ≀㉁࡟࠾࠸࡚ࠊ⛛ᗎኚᩘࡢྥ
ࡁࡀᥞࡗࡓ㡿ᇦࢆࢻ࣓࢖ࣥ㸦ศᇦ㸧࡜࠸࠸ࠊ㞄᥋ࢻ࣓࢖ࣥࡢቃ⏺ࢆࢻ࣓࢖ࣥቃ⏺࡜࠸࠺ࠋ㏆ᖺࠊᙉㄏ㟁యࡸᙉᙎᛶయࡢࢻ࣓࢖ࣥቃ⏺࡟࠾࠸࡚ࠊ☢ᛶࠊㄏ㟁ᛶࡸ㉸ఏᑟ≉ᛶ࡞࡝ࣂࣝࢡᵓ㐀࡜␗࡞ࡿ≉␗࡞ᶵ⬟ᛶࡀⓎ⌧ࡍࡿࡇ࡜ࡀሗ࿌ࡉࢀ[1,2]ࠊࢻ࣓࢖ࣥቃ⏺࡟≉᭷࡞⤖ᬗᵓ㐀ࡸᶵ⬟ᛶࡢⓎ⌧࡟㛵ࡍࡿ◊✲ࡀ┒ࢇ࡟⾜ࢃࢀ࡚࠸ࡿ[3]ࠋᮏ◊✲࡛ࡣࠊᮏ≀㉁⣔ࡀ♧ࡍ㓟⣲྾ⶶ≉ᛶࡢⓎ⌧ᶵᵓࢆ᳨ウࡍࡿࡓࡵ࡟ࠊ௒ᖺᗘࡣභ᪉ᬗᙉㄏ㟁య HoMnO3
࠾ࡼࡧ Mn ࢧ࢖ࢺࡢ୍㒊ࢆ Ti ࡛⨨᥮ࡋࡓ HoMn1-xTixO3+ț(x = 0 ~ 0.3)ࢆస〇ࡋࠊࡑࡢࢻ࣓
࢖ࣥᵓ㐀࠾ࡼࡧࢻ࣓࢖ࣥቃ⏺ࡢᒁᡤᵓ㐀࡟ࡘ࠸࡚ࠊ㏱㐣ᆺ㟁Ꮚ㢧ᚤ㙾ἲࢆ⏝࠸࡚◊✲ࢆ⾜ࡗࡓࠋ㸰㸬◊✲ෆᐜ࡜ᡂᯝ
HoMn1-xTixO3+ț(x = 0.3)ヨᩱࡢᐊ ࡛ᚓࡽࢀࡓ㟁Ꮚᅇᢡᅗᙧࢆ Fig.1a ࡟♧ࡍࠋᅇᢡᅗᙧ
୰࡟ࡣࠊ✵㛫⩌ P63cm ࢆᣢࡘභ᪉ᬗᵓ㐀࡟ࡼࡿᅇᢡࢫ࣏ࢵࢺ࡟ຍ࠼࡚ࠊh k l+1/3 ఩⨨࡟㉸᱁Ꮚ཯ᑕࡀᏑᅾࡋ࡚࠸ࡿࠋゎᯒࡢ⤖ᯝࠊ⳻㠃యᬗᵓ㐀㸦R3c㸧࡟ࡼࡿᅇᢡࢫ࣏ࢵࢺ࡛
࠶ࡿࡇ࡜ࡀศ࠿ࡗࡓࠋࡇࡢࡇ࡜࠿ࡽࠊx = 0.3 ࡛ࡣࠊභ᪉ᬗᵓ㐀࡜⳻㠃యᬗᵓ㐀ࡀ 2 ┦ඹᏑࡋ࡚࠸ࡿ࡜⪃࠼ࡽࢀࡿࠋࡑࡇ࡛ࠊ2 ┦≧ែ࡟㛵ࡍࡿᚤ⣽ᵓ㐀ࢆ᫂ࡽ࠿࡟ࡍࡿࡓࡵ࡟ᬯ
ど㔝ീࢆほᐹࡋࡓ⤖ᯝࠊ1 0 ࢫ࣏ࢵࢺࢆ⏝࠸࡚ᚓࡽࢀࡓᬯど㔝ീ㸦Fig.1b㸧࡟♧ࡍࡼ࠺
࡟ࠊP63cm ᵓ㐀ࡣ R3c ᵓ㐀࡟ࡼࡿࢻ࣓࢖ࣥቃ⏺࡜ࡋ࡚Ꮡᅾࡋ࡚࠸ࡿࡇ࡜ࡀศ࠿ࡗࡓࠋḟ࡟ࠊR3c ᵓ㐀ࡢ⤖ᬗᵓ㐀࡟㛵ࡍࡿ▱ぢࢆᚓࡿࡓࡵ࡟ࠊཎᏊศゎ⬟ HAADF-STEM ほᐹࢆ⾜ࡗࡓࠋFig.1c ࡟♧ࡍࡼ࠺࡟ࠊR c ᵓ㐀ࡣ Ho ཎᏊࡀ[001]㍈᪉ྥ࡟ 3 ಸ࿘ᮇࢆᣢࡘࡼ࠺
࡟ኚ఩ࢆࡋ࡚࠾ࡾࠊࡑࡢኚ఩ࣃࢱ࣮ࣥࡣ up-0-down ࣃࢱ࣮ࣥࢆᣢࡕࠊ཯㌿ᑐ⛠ᛶࢆ᭷ࡋ࡚࠸ࡿࡇ࡜ࡀศ࠿ࡗࡓࠋ୍᪉ࠊᙉㄏ㟁┦࡛࠶ࡿ P63cm ᵓ㐀࡛ࡣࠊHo ཎᏊࡢኚ఩ࣃࢱ࣮
ࣥࡣ up-up-down㸦up-down-down㸧ࢆࡋ࡚࠾ࡾࠊ཯㌿ᑐ⛠ᛶࡀ◚ࢀ࡚࠾ࡾࠊ[001]㍈᪉ྥ
࡟ศᴟࡀ⏕ࡌࡿྍ⬟ᛶࡀࡿ.

98

[ཧ⪃ᩥ⊩][1] H. Yokota, et al., Phys. Rev. B 100, 024101 (2019).
[2] Sandra Van Aert, et al., Adv. Mater. 24, 523–527 (2012).
[3] H. Yokota, ᪥ᮏ⤖ᬗᏛ఍ㄅ 61㸪77-78㸦2019㸧.


Figure 1 HoMn1-xTixO3 (x = 0.3)ヨᩱࡢᐊ ࡛ᚓࡽࢀࡓ(a) 㟁Ꮚᅇᢡᅗᙧࠊ(b) ᬯど㔝ീ(c) HAADF-STEM ീ (d) ⳻㠃యᵓ㐀㸦✵㛫⩌;R3c㸧ࡢᵓ㐀ࣔࢹࣝ࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸦SW ࢦࢩࢵࢡయ㸧࣭ෆᶫ◊ே࣭ሯᓮ⿱ᩥ࣭Ferrnando Cubillasm࣭▼ᶫᗈグ࣭ஂಖ⏣ెᇶࠊ▼஭ᝆ⾰࣭᳃ⱱ⏕, ,ᒣᓮ㡰, HoMn1-xTixO3 ࡢ≉␗࡞ࢻ࣓࢖ࣥᵓ㐀, ᪥ᮏࢭ࣑ࣛࢵࢡࢫ༠఍ 2020 ᖺᖺ఍ࠊ᫂἞኱Ꮫ㸦㥴Ἑྎ࢟ࣕࣥࣃࢫ㸧ࠊ2020 ᖺ 3 ᭶ 18 ᪥㹼20 ᪥࣭ෆᶫ◊ே࣭ሯᓮ⿱ᩥ࣭Ferrnando Cubillasm࣭▼ᶫᗈグ࣭ஂಖ⏣ెᇶࠊ▼஭ᝆ⾰࣭᳃ⱱ⏕, ,ᒣᓮ㡰, HoMn1-xTixO3 ࡢ≉␗࡞ࢻ࣓࢖ࣥᵓ㐀ࡢ TEM ほᐹࠊ᪥ᮏ㢧ᚤ㙾Ꮫ఍➨ 76 ᅇᏛ
⾡ㅮ₇఍ࠊ኱㜰ᅜ㝿஺ὶࢭࣥࢱࠊ2020 ᖺ 5 ᭶ 25 ᪥-27 ᪥࣭ෆᶫ◊ே࣭Ferrnando Cubillasm࣭ሯᓮ⿱ᩥ࣭୰ᓥᏹ࣭▼ᶫᗈグ࣭ஂಖ⏣ెᇶࠊ▼஭ᝆ⾰࣭᳃ⱱ⏕, ,ᒣᓮ㡰,MRM ࣇ࢛࣮࣒ࣛ 2020 2020 ᖺ 12 ᭶ 8 ᪥㸦࢜ࣥࣛ࢖ࣥ㛤ദ㸧㸺⏘ᴗ㈈⏘ᶒ㸼࣭≉࡟࡞ࡋ99ู⣬ᵝᘧ㸰㸫㸰㧗Ᏻ඲ᛶ࣭኱ᐜ㔞 LIB ㈇ᴟྥࡅࡢ Ti/Sn, Mo ⣔」ྜ⭷࡜ࢼࣀࢩ࣮ࢺ≧ࡢᅛయ㟁ゎ㉁࡜ࡢࢼࣀ✚ᒙ໬
Nano-laminated Fabrication of Ti/Sn, Mo-based Composite Films and Nano-sheeted
Solid Electrolyte toward High Performance LIB Anode Materials࿋ ᯇ➉࣭ྡྂᒇᕤᴗ኱Ꮫ࣭≀⌮ᕤᏛ⛉ᮦᩱᶵ⬟ศ㔝࣭ᩍᤵ㝞 㞷㞹࣭ྡྂᒇᕤᴗ኱Ꮫ࣭≀⌮ᕤᏛᑓᨷᮦᩱᶵ⬟ศ㔝࣭ಟኈ㸰ᖺἙྜ ග࣭ྡྂᒇᕤᴗ኱Ꮫ࣭≀⌮ᕤᏛᑓᨷᮦᩱᶵ⬟ศ㔝࣭ಟኈ㸯ᖺ㛗⏣ ᐇ࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱࢩࢫࢸ࣒◊✲ᡤ࣭ᩍᤵ㸯㸬◊✲┠ⓗ ᆅ⌫⎔ቃ࡬ࡢ㓄៖ࡸ໬▼⇞ᩱࡢᯤῬၥ㢟ࢆ⫼ᬒ࡜ࡋ࡚㸪LIB ࡢ㟂せࡣࠊᚑ᮶ࡢᑠᆺ㟁Ꮚᶵჾ࡛࠶ࡿᦠᖏ㟁ヰࡸࣀ࣮ࢺࣃࢯࢥࣥ࡞࡝࠿ࡽ㸪ࣁ࢖ࣈࣜࢵࢻ㌴㸪㟁Ẽ⮬ື㌴㸪ᐃ⨨ᆺ⵳㟁ụ࡞࡝ࡢ኱ᆺ㟁Ẽ࢚ࢿࣝࢠ࣮ኚ᥮ࢹࣂ࢖ࢫ࡬࡜ᛴ㏿࡟ᣑ኱ࡋ࡚࠸ࡿࠋࡇࢀࡽࡢ኱
ᆺືຊ※ࡢ LIB ࡣ㸪㏻ᖖࡢᑠᆺ㟁Ꮚᶵჾࡼࡾ㐶࠿࡟㧗࠸࢚ࢿࣝࢠ࣮ᐦᗘ࡜Ᏻ඲ᛶࡀせồࡉࢀ࡚࠸ࡿࠋᮏ◊✲࡛ࡣࠊ᪂つ࡞㧗ᛶ⬟ୟࡘపࢥࢫࢺ LIB 㟁ᴟᮦᩱࡢ๰〇ࢆ┠ᣦࡋࠊTi ⟩ୖ࡟㧗཯ᛂᛶ࡜ᑟ㟁ᛶࢆ᭷ࡍࡿࢼࣀ࣏࣮ࣛࢫ TiO2-TiN 」ྜ࢔ࣀ࣮ࢻ㓟໬⓶⭷ࢆᙧᡂࡋࠊࡲࡓࠊࣁ࢖ࣈࣜࢵࢻ㟁Ẽࡵࡗࡁἲ࡟ࡼࡾ኱ᐜ㔞ࡢ Sn ⣔ࡲࡓࡣ Mo ⣔≀㉁ࢆTiO2-TiN 」ྜ࢔ࣀ࣮ࢻ㓟໬⓶⭷ࡢ⣽Ꮝෆ࡟ᑟධࡍࡿࡇ࡜࡟ࡼࡾࠊᏳ඲ᛶྥୖ࡜኱ᐜ㔞໬ࡢ୧❧ࢆᯝࡓࡍࡇ࡜ࢆ┠ⓗ࡜ࡍࡿࠋ㸰㸬◊✲ෆᐜ࡜ᡂᯝ
2.1

TiO2-TiN/Sn(Mo)⣔」ྜ⭷ࡢస〇࡜ LIB ㈇ᴟ࡜

ࡋ࡚ࡢ඘ᨺ㟁≉ᛶホ౯ 㸦ᢸᙜ㸸ྡྂᒇᕤᴗ኱Ꮫ㸧Fig.1 ࡟♧ࡍࡼ࠺࡟ࠊྛ✀◪㓟⣔㟁ゎᾮࢆ⏝࠸ࡓࢫ࣐࣮ࢺ࢔ࣀ࣮ࢻ㓟໬ἲ࡟ࡼࡾࠊTi ⟩ୖ࡟⣽Ꮝ┤ᚄI0-80 nm ࢆᣢࡘࠊᑟ㟁ᛶࢼࣀ࣏࣮ࣛࢫ TiO2-TiO-TiN」ྜ⓶⭷ࢆస〇ࡋࠊࡲࡓࠊྛ✀㔠ᒓ࢖࢜ࣥࢆྵࡴ㟁ゎᾮ୰࡛ࡢࣁ࢖ࣈࣜࢵࢻ㟁ᯒἲ࡟ࡼࡾࠊࡑࡢ」ྜ⓶⭷ࡢ⣽Ꮝෆ࠾ࡼࡧ⭷ୖ࡟ Sn ࡜ Mo ⣔≀㉁ࢆ㟁ᯒࡋࠊྛ✀」ྜ⭷ࡢ๰〇࡟ᡂຌࡋࡓࠋ
ࡲࡓࠊXPSᐃ࡟ࡼࡾ Sn ⣔≀㉁ࡣ Sn-SnO2ࠊMo ⣔≀㉁ࡣ MoO2-MoO3-Mo2N ࡛࠶ࡿࡇ࡜ࡀุ᫂ࡉࢀࡓࠋࡉ
ࡽ࡟ࠊ඘ᨺ㟁ヨ㦂࡟ࡼࡾࠊ༢⊂ࡢ TiO2-TiN ⓶⭷࡜ẚ࡭࡚ࠊTi/Sn ⣔」ྜ⭷ࡣ㸵ಸ࡯࡝ࠊTi/Mo ⣔」ྜ⭷ࡣ㸳ಸ࡯࡝ࡢ㧗࠸ᐜ㔞ࢆ♧ࡋࠊඃࢀࡓࢧ࢖ࢡࣝᏳᐃᛶࢆᣢࡘࡇ
࡜ࡶ☜ㄆࡉࢀࡓࠋ

100

Fig.1 schematic drawings of (a)smart anodizing and (b) hybrid
electrodeposition of Sn-SnO2 or
MoOx nanoparticles.

2.2 ᾮᯒฟἲ࡟ࡼࡿᵝࠎ࡞ࢼࣀ̿ࢩ࣮ࢺ≧ࡢᅛయ㟁ゎ㉁ศᩓᾮࡢྜᡂ㸦ᢸᙜ㸸ྡྂᒇ኱Ꮫ㸧௒ᖺᗘ࡟ࡣࠊࢥࣟࢼࡢᙳ㡪࡛」ྜ⭷ࡢస〇ࡣ࡛ࡁࡲࡏࢇ࡛ࡋࡓࡀࠊ౫㢗ࡢᙧ࡛ྡ኱ᡤ
᭷ࡢ XPSᐃ⿦⨨ࢆ฼⏝ࡉࡏ࡚࠸ࡓࡔࡁࡲࡋࡓࠋ

࣭࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ཎⴭㄽᩥ㸼㸦11pt ᫂ᮅయ, Times㸧࣭ 㸯㸬͆Direct Fabrication of TiO2-TiN/Sn-SnO2 Composite Films on Ti Foils by Smart
Anodization and Hybrid Electrodeposition as High-Performance Anode Materials for
Lithium-ion Battery͇, Xuewen Chen, Song-Zhu Kure-Chu, Yota Sakuma, Masazumi Okido,
Reona Miyazaki, Takehiko Hihara, Hitoshi Yashiro㸦J. Power Sources ࡬ᢞ✏‽ഛ୰㸧.
㸺ᅜ㝿࣭ᅜෆ఍㆟㸼㸦11pt ᫂ᮅయ, Times㸧
1.

ࠐXuewen Chen, Song-Zhu Kure-Chu, Yota Sakuma, Takashi Matsubara, Takehiko Hihara,
Masazumi Okido, Hitoshi Yashiro, ࠕFabrication and of Electrochemical Performance ofTiO2-TiN/Sn-SnO2 Composite Films on Ti for High Capacity and High Conductivity LIB
Anodesࠖ, PRIME 2020 (online), Hawaii 2020.10.4-9.

2.

ࠐ㝞 㞷㞹ࠊ࿋ ᯇ➉*ࠊἙྜ ගࠊ᪥㔝⪷ேࠊ஌ᯇ㝧ኴࠊ㛗⏣ ᐇࠕ◪㓟⣔㟁ゎᾮࢆ⏝࠸ࡓ Ti ᯈ࡬ࡢࢼࣀ࣏࣮ࣛࢫ TiO2-TiN 」ྜ࢔ࣀ࣮ࢻ㓟໬⓶⭷ࡢ㧗㏿ᙧᡂࠖ➨ 143 ᅇ⾲㠃ᢏ⾡༠఍ㅮ₇኱఍ ᒣ᲍኱Ꮫ 2021.3.4-5

3.

ࠐ㝞 㞷㞹ࠊ࿋ ᯇ➉*ࠊἙྜ ගࠊ᪥㔝⪷ேࠊ஌ᯇ㝧ኴࠊ㛗⏣ ᐇࠕ㧗ᐜ㔞࣭㧗Ᏻ඲ᛶ࣭㧗ᐜ㔞Ᏻᐃᛶࢆྠ᫬࡟ᐇ⌧ࡍࡿ LIB ㈇ᴟᮦᩱྥࡅࡢ
TiO2-TiN/Sn-SnO2 」 ྜ ⭷ ࡢ ๰ 〇 ࠾ ࡼ ࡧ ≉ ᛶ ホ ౯ ࠖ , 㟁 Ẽ ໬ Ꮫ ఍ ➨ 88 ᅇ ኱ ఍
2021.3.22-24 .

㸺⏘ᴗ㈈⏘ᶒ㸼࣭ฟ㢪≧ἣࠊྲྀᚓ≧ἣ㸸࡞ࡋࠋ㸦ὀ㸧ู⣬ᵝᘧ㸰㸫㸯ࡣ㸿㸲ࢧ࢖ࢬ㸯㡫࡟ࠊู⣬ᵝᘧ㸰㸫㸰ࡣᅗ⾲➼ࢆྵࡵ࡚㸿㸲ࢧ࢖ࢬ㸰㡫࡟࡞ࡿࡼ࠺࡟ࡋ࡚ࡃࡔࡉ࠸ࠋ

101ู⣬ᵝᘧ㸰㸫㸰࢚ࢿࣝࢠ࣮ࢹࣂ࢖ࢫ࡬ࡢᛂ⏝࡟ྥࡅࡓ㓟໬≀ࢼࣀࣈࣟࢵࢡ࠾ࡼࡧ㓄ิయࡢ≉ᛶゎᯒCharacteristic analysis of oxide nanoblocks for development of energy devices௒஭ᏹ࣭᫂៞᠕⩏ሿ኱Ꮫ࣭⌮ᕤᏛ㒊࣭ᛂ⏝໬Ꮫ⛉࣭ᩍᤵྜྷ⏣஽ᖹ࣭៞᠕⩏ሿ኱Ꮫ኱Ꮫ㝔࣭⌮ᕤᏛ◊✲⛉࣭Ꮫ⏕㛗⏣ᐇ࣭ྡྂᒇ኱Ꮫ࣭ᮦᩱ๰〇㒊㛛࣭ᩍᤵ  㸯㸬◊✲┠ⓗ ⇕㟁࣭⇞ᩱ㟁ụ࣭᣺ືⓎ㟁࡞࡝࡟⏝࠸ࡽࢀࡿࢹࣂ࢖ࢫࡢ㧗ຠ⋡໬ࡣ⌧ᅾࡢႚ⥭ࡢㄢ㢟࡛࠶ࡾࠊࡑࡢࡓࡵ࡟࢚ࢿࣝࢠ࣮ᮦᩱࡢ㧗ᶵ⬟໬࣭ࢧ࢖ࢬ⦰ᑠࡀồࡵࡽࢀ࡚࠸ࡿࠋࡑࡇ࡛
⏦ㄳ⪅ࡣࠊᅽ㟁ᛶ࣭㟁Ꮚఏᑟᛶ࣭࢖࢜ࣥఏᑟᛶ࣭☢ᛶ࡞࡝ࡢᶵ⬟ࢆ᭷ࡍࡿከᵝ࡞㓟໬≀ࡢ▴ᙧࢼࣀ⢏Ꮚ㸦ࢼࣀࣈࣟࢵࢡ㸧ࢆࠊᶵ⬟ࢹࣂ࢖ࢫࡢᵓᡂ༢఩࡜ࡋ࡚఩⨨࡙ࡅࠊ࣎ࢺ࣒
࢔ࢵࣉⓗ࡟⮬ᅾ࡟㓄ิࡉࡏࡿࡇ࡜࡛ࠊࣂࣝࢡ⤖ᬗࡢࣈࣞ࢖ࢡࢲ࢘ࣥᡭἲ࡛ࡣ㐩ᡂࡋ࠼࡞࠸ᶵ⬟ࢆⓎ⌧ࡉࡏࡿࡇ࡜ࢆ┠ᣦࡋ࡚࠸ࡿࠋࡇࢀࡲ࡛࡟ࠊࢼࣀࣈࣟࢵࢡࡀ⤖ᬗ᪉఩ࢆࡑࢁ
࠼࡚㞟✚ࡋ࡚࠸ࡿ࣓ࢯࢡࣜࢫࢱࣝᵓ㐀ࢆస〇ࡍࡿࡇ࡜࡟ࡼࡿ㧗ᶵ⬟໬ࢆ┠ᣦࡋ࡚ࡁࡓ
ࡀࠊ≉ᛶ࡟኱ࡁࡃᐤ୚ࡍࡿ࡜⪃࠼ࡽࢀ࡚࠸ࡿࢼࣀ⤖ᬗ㛫ࡢṍࡸ⏺㠃࡟ࡘ࠸࡚ヲ⣽࡞᳨ウࡣᢏ⾡ⓗ࡟ᅔ㞴࡛࠶ࡗࡓࠋࡑࡇ࡛ඹྠ◊✲࡛ࡣࠊ㈗Ꮫࡢ᭷ࡍࡿ࣐࢖ࢡࣟࣉ࣮ࣟࣈ㢧ᚤ㙾ᢏ⾡ࢆᛂ⏝ࡋࠊࢼࣀࣈࣟࢵࢡ༢⊂ࡢ≉ᛶ࠾ࡼࡧᩘಶ༢఩࡛ࡢ⤖ྜ࡟ࡼࡿࢼࣀࢫࢣ࣮ࣝࡢ
≉ᛶࢆゎᯒࡋࠊከᵝ࡞ࢹࣂ࢖ࢫ㛤Ⓨ࡟࠶ࡓࡗ࡚ࡢᇶ♏ⓗ▱ぢࢆᚓࡿࡇ࡜ࢆ┠ⓗ࡜ࡍࡿࠋ㸰㸬◊✲ෆᐜ࡜ᡂᯝ
 2020 ᖺᗘ࡟ࡣࠊࢼࣀࣈࣟࢵࢡ㓄ิయࡢᶵ⬟ホ౯࡜ࡋ࡚ࠊᙉ☢ᛶయࡢ Fe3O4 ࢼࣀࣈࣟࢵ
ࢡ࡜཯ᙉ☢ᛶయࡢ Co3O4 ࢼࣀࣈࣟࢵࢡࡢ」ྜ✚ᒙయࡢ☢Ẽ≉ᛶホ౯ࢆ⾜࠸ࠊ⏺㠃࡛ࡢ஺᥮⤖ྜ࡟ࡼࡿಖ☢ຊࡢ኱ᖜ࡞ྥୖࢆ☜ㄆࡋࡓࠋࡲࡓࠊ㌾☢ᛶయࡢ Fe3O4 ࢼࣀࣈࣟࢵࢡ࡜
◳☢ᛶయࡢ CoFe2O4 ࢼࣀࣈࣟࢵࢡࡢ」ྜ✚ᒙయ࡟ࡘ࠸࡚ࡶ☢Ẽ≉ᛶホ౯ࢆ⾜࠸ࠊ⏺㠃࡛ࡢ஺᥮┦஫స⏝࡟ࡼࡗ࡚᭱኱࢚ࢿࣝࢠ࣮✚ࡀྥୖࡋࡓࡇ࡜☜ㄆࡋࡓࠋ
࠙Fe3O4–Co3O4 ࢼࣀࣈࣟࢵࢡ」ྜ✚ᒙయࡢ☢Ẽ≉ᛶホ౯ࠚ ᙉ☢ᛶయ࡛࠶ࡿ Fe3O4 ࢼࣀࣈࣟࢵࢡ࡜཯ᙉ☢ᛶయ࡛࠶ࡿ Co3O4 ࢼࣀࣈࣟࢵࢡࡢ」ྜ✚ᒙయ㸦Fig. 1㸧ࢆᇶᯈୖ࡟స〇ࡋࠊࡑࡢ☢Ẽ≉ᛶࢆホ౯ࡋࡓࠋFig. 2 ࡟ࠊࡑࢀࡒࢀࡢ
༢⊂ࡢࢼࣀࣈࣟࢵࢡࡢ༢ᒙ㓄ิయ࡜஧✀㢮ࡢ␗✀ࢼࣀࣈࣟࢵࢡࡢ✚ᒙయࡢ☢Ẽ≉ᛶࢆ♧ࡍࠋFe3O4 ࢼࣀࣈࣟࢵࢡ༢
⊂ࡢಖ☢ຊࡣ⣙ 0.3 kOe ࡛࠶ࡗࡓࡀࠊCo3O4 ࢼࣀࣈࣟࢵࢡ
࡜ࡢ஧ᒙ஺஫✚ᒙయ࡛ࡣ⣙ 13 kOe ࡲ࡛ቑ኱ࡋࡓࠋࡇࢀࡣ
ࣇ࢙ࣜ☢ᛶ Fe3O4 ࢼࣀࣈࣟࢵࢡ࡜཯ᙉ☢ᛶ Co3O4 ࢼࣀࣈࣟ102

Fig. 1 Fe3O4–Co3O4 ࢼࣀࣈࣟࢵࢡ」ྜ✚ᒙయࡢ SEM ീࠋࢵࢡࡢ⏺㠃࡟࠾ࡅࡿ஺᥮⤖ྜ࡟ࡼࡿ࡜⪃࠼ࡽࢀࡿࠋCo3O4㸫Fe3O4㸫Co3O4 ࢼࣀࣈࣟࢵࢡ
୕ᒙ஺஫✚ᒙయ࡛ࡣࠊ⏺㠃㠃✚ࡀቑ࠼ࡓࡇ࡜࡛஺᥮⤖ྜࡀࡉࡽ࡟ቑຍࡋࠊಖ☢ຊࡀ⣙
16 kOe ࡲ࡛ྥୖࡋࡓࠋࡲࡓࠊFe3O4 ࢼࣀࣈࣟࢵࢡࡢࣛࣥࢲ࣒㞟✚యࡢୖ࡟ Co3O4 ࢼࣀࣈࣟࢵࢡࢆ✚ᒙࡉࡏࡓሙྜ࡜ẚ㍑ࡍࡿ࡜ࠊFe3O4 ࡢ㓄ิᛶࡀ㧗࠸࡯࡝ಖ☢ຊࡀ኱ࡁ࠸ഴྥ
ࡀࡳࡽࢀࡓࠋࡇࢀࡣ⢏Ꮚࡢ㓄ิᛶࡢྥୖ࡟ࡼࡗ࡚ࢫࣆࣥࡢ㓄ิᛶࡀྥୖࡋࠊ஺᥮⤖ྜࡀ㉳ࡇࡾࡸࡍࡃ࡞ࡗࡓࡓࡵ࡜⪃࠼ࡽࢀࡿࠋ

Fig. 2 Fe3O4 ༢ ᒙ 㓄 ิ య (a) ࠾ ࡼ ࡧ Co3O4 ༢ ᒙ 㓄 ิ య (b) ࠊ Fe3O4–Co3O4 ஧ ᒙ ✚ ᒙ య (c) ࠊ
Co3O4–Fe3O4–Co3O4 ୕ᒙ✚ᒙయ(d)ࠊFe3O4–Co3O4 ࣛࣥࢲ࣒㞟✚య(e)ࡢ☢໬᭤⥺࡜ಖ☢ຊࡢẚ㍑(f)ࠋ

࠙Fe3O4–CoFe2O4 ࢼࣀࣈࣟࢵࢡ」ྜ✚ᒙయࡢ☢Ẽ≉ᛶホ౯ࠚ㌾☢ᛶయ࡛࠶ࡿ Fe3O4 ࢼࣀࣈࣟࢵࢡ࡜◳☢ᛶయ࡛࠶ࡿ CoFe2O4 ࢼࣀࣈࣟࢵࢡࡢ୕ᒙ✚ᒙయ㸦Fig. 3a㸧ࢆᇶᯈୖ࡟స〇ࡋࠊࡑࡢ☢Ẽ≉ᛶࢆホ౯ࡋࡓࠋ୕ᒙ✚ᒙయ࡟࠾࠸࡚◳☢
ᛶ CoFe2O4 ࢼࣀࣈࣟࢵࢡ࡜㌾☢ᛶ Fe3O4 ࢼࣀࣈࣟࢵࢡࡢ⏺㠃࡛ࡢ஺᥮┦஫స⏝࡟ࡼࡗ࡚ṧ␃☢໬࡜ಖ☢ຊࡢቑຍࡀ☜ㄆࡉࢀࡓ㸦Fig. 3b㸧ࠋ୍᪉䚸୰㛫ᒙ䛷䛒䜛 Fe3O4 䛜䝷䞁䝎䝮䛻㞟✚䛧䛯✚ᒙయ䛷䛿☢Ẽ᭤⥺䛻䝇䝔䝑䝥䛜Ꮡᅾ䛩䜛䛣䛸䛛䜙஺᥮┦஫స⏝䛜ᙅ䛔䛣䛸䛜♧၀䛥䜜䛯䚹ࡲࡓࠊ᭱኱࢚ࢿࣝࢠ࣮✚ࡣ㓄ิᛶࡢྥୖ࡟ࡼࡗ࡚ቑຍࡍࡿࡇ࡜ࡀศ࠿ࡗࡓࠋࡇ
ࢀࡣࠊFe3O4 ࢼࣀࣈࣟࢵࢡࡢ㓄ิ࡟ࡼࡗ࡚⤖ᬗ᪉఩ࡀᥞ࠸㸪☢Ẽ࣮࣓ࣔࣥࢺࡀ㓄ิࡋࡓࡇ࡜࡛஺᥮┦஫స⏝ࡀᙉࡃാ࠸ࡓࡓࡵ࡛࠶ࡿ࡜⪃࠼ࡽࢀࡿࠋ

Fig. 3 CoFe2O4–Fe3O4–CoFe2O4 ࢼࣀࣈࣟࢵࢡ୕ᒙ✚ᒙయࡢ SEM ീ(a)࡜☢໬᭤⥺(b)ࠋ

103

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ࡇࡢ㟁ᴟゐ፹࡛࠶ࡿ Pt/C ࡢ㔞ࢆῶᑡࡉࡏࡿᚲせࡀ࠶ࡿ࡜ゝࢃࢀ࡚࠸ࡿࠋ⏦ㄳ⪅ࡣࠊ㧗ẚ⾲㠃✚ࢆᣢࡘ஧ḟඖᵓ㐀࡟ὀ┠ࡋ࡚࠾ࡾࠊ㏆ᖺࠊⓑ㔠᪘⣔ࡸ㔠ᒓ⣔ࡢ᪂ࡋ࠸ࢼࣀࢩ࣮
ࢺ໬࡟ᣮᡓࡋࠊࡇࡢၥ㢟࡟ᑐᛂࡋ࡚ࡁ࡚࠸ࡿࠋࡋ࠿ࡋ࡞ࡀࡽࠊⓑ㔠ࢆ┤᥋ⓗ࡟஧ḟඖ໬ࡍࡿࡇ࡜ࡣ㠀ᖖ࡟㞴ࡋ࠸ࡓࡵࠊ᪂つ࡟ྜᡂࡋࡓᒙ≧໬ྜ≀࠿ࡽᚓࡽࢀࡿ㓟໬ⓑ㔠ࢼࣀࢩ࣮ࢺࢆ฼⏝ࡋࠊࡇࢀ࡟ᡭࢆຍ࠼ࡿࡇ࡜࡟ࡼࡾ⢏Ꮚࡼࡾࡶάᛶࡀ㧗࠸ⓑ㔠ᮦᩱࢆぢฟࡍࡇ࡜ࢆ┠ᣦࡋ࡚࠸ࡿࠋేࡏ࡚ࠊ௚ᮦᩱ࡜ࡢ」ྜ໬ࠊⓑ㔠ᛶ⬟௦᭰ရ㸦௚ඖ⣲࣮࣋ࢫᮦᩱ㸧࡞࡝ࡶ᳨ウࡋ࡚࠸ࡿࠋࡼࡗ࡚ᮏ⏦ㄳ࡛ࡢ◊✲࡟࠾࠸࡚ࡣࠊࡲࡎ๓ᖺࡲ࡛ࡢ᳨ウ࡟ᘬ⥆ࡁࠊ㓟໬ⓑ㔠ࢼࣀࢩ࣮ࢺࠊ」ྜ໬࣭௦᭰ᮦᩱ⣔ࢼࣀࢩ࣮ࢺࡢᇶ♏≀ᛶࡢ☜ㄆࠊࢼࣀࢩ࣮ࢺᵓ
㐀ࡀ୚࠼ࡿゐ፹⬟࡬ࡢᙳ㡪㸦ᵓ㐀ཬࡧ⾲㠃ࠊ⏺㠃ࡢᙳ㡪㸧ࢆ☜ㄆࡍࡿࡇ࡜ࢆ┠ⓗ࡜ࡋࡓࠋ㸰㸬◊✲ෆᐜ࡜ᡂᯝ
㖡⣔ࡢᒙ≧໬ྜ≀࠿ࡽ๤㞳ࡋࡓࢼࣀࢩ࣮ࢺࡢ༢ᒙ᳨⣴ࡢࡓࡵࠊඹ↔Ⅼ࣮ࣞࢨ࣮㢧ᚤ㙾࡛ᵝࠎ࡞≧ែࡢほᐹࢆᐇ᪋ࡋࡓࠋࡑࡢ⤖ᯝࠊከࡃࡢ㒊ศ࡟࠾࠸࡚༢ᒙ໬࡟ᡂຌࡋ࡚࠸ࡿ
ࡇ࡜ࡀ☜ㄆ࡛ࡁࡓࠋ᭦࡟ࠊࡇࡢ༢ᒙ໬࡟ᡂຌࡋࡓ㖡⣔ࡢࢼࣀࢩ࣮ࢺࢆ⏝࠸⎔ቃไᚚᆺ
AFM ࡛ࠊ┿✵ୗຍ᫬࡛ࡢ AFM ほᐹࢆᐇ᪋ࡋࡓࠋࡲࡎࠊ⇕㔜㔞ศᯒ࡟ࡼࡾணࡵࡇࡢᮦ

ᩱࡢ⇕࡟ࡼࡿኚ໬ࢆ☜ㄆࡋࡓࠋࡑࡢ⤖ᯝࡼࡾࠊᐊ
ࡿࡇ࡜࡟Ỵᐃࡋࡓࠋࡑࡇ࡛ࠊࡲࡎᐊ

࠿ࡽ 150Υ࡛ࡢ㛫࡛ࡢほᐹࢆᐇ᪋ࡍ

࠿ࡽ AFM ࡟ࡼࡾ⾲㠃≧ែࢆほᐹࡋࠊཌࡳࢆ☜ㄆࡋࡓࠋ⥆࠸࡚ࠊ50Υࠊ100Υࠊ110Υࠊ120Υࠊ130Υࠊ150Υ࡜ẁ㝵ࢆ㏣࠸ຍ
ࢆࡑࡢ᫬Ⅼẖ☜ㄆࡋࡓࠋࡇࢀࡼࡾࠊ┿✵ຍ᫬ࡢ AFM࡟ࡼࡾࠊࢼࣀࢩ࣮ࢺࡢᙧ≧ࡣ኱ࡁࡃኚ໬ࡋ

࡞࠸ࡀࠊཌࡳࡀ㠀ᖖ࡟ⷧࡃ࡞ࡗࡓࡇ࡜㸦1.3ЍЍ0.3 ⛬ᗘ㸧ࡀ☜ㄆ࡛ࡁࡓࠋࡲࡓࡇࡢཌࡳ
ࡢኚ໬➼࡟ࡘ࠸࡚ࡣࠊ௚ศᯒ㸦XAFSᐃ➼㸧ࡢ⤖ᯝ࡜ࡶ㠀ᖖ࡟ᑐᛂࡋ࡚࠾ࡾ⇕ฎ⌮࡟ࡼࡿ≧ែኚ໬ࡀ཮᪉ࡢ㠃࠿ࡽ☜ㄆ࡛ࡁࡓࠋḟᖺᗘࡣࡇࡢ᪂ࡋ࠸༢ᒙࢼࣀࢩ࣮ࢺ࡜ⓑ㔠⣔ࢼࣀࢩ࣮ࢺ࡞࡝ࡢ」ྜ໬➼ࢆ㐍ࡵ᪂ࡋ࠸≀ᛶ࣭≉ᛶࡢ☜ㄆࢆ㐍ࡵ࡚⾜ࡁࡓ࠸࡜⪃࠼࡚࠸ࡿࠋ࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ཎⴭㄽᩥ㸼࡞ࡋ㸺ᅜ㝿࣭ᅜෆ఍㆟㸼࡞ࡋ㸺⏘ᴗ㈈⏘ᶒ㸼࡞ࡋ106ู⣬ᵝᘧ㸰㸫㸰ࢼࣀ࣮࢝࣎ࣥࡢ㟁Ẽ໬Ꮫⓗάᛶ໬࡟ࡼࡿ㧗ᛶ⬟ࣞࢻࢵࢡࢫ࢟ࣕࣃࢩ
ࢱࡢ๰〇High-performance nanocarbon capacitors activated by electrochemical reactions  ㇂ཱྀ㈗❶࣭≀㉁࣭ᮦᩱ࣭◊✲ᶵᵓ࣭ᅜ㝿ࢼࣀ࢔࣮࢟ࢸࢡࢺࢽࢡࢫ◊✲ᣐⅬ࣭୺௵◊✲ဨ㛗⏣ᐇ࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ࣭ᩍᤵ 㸯㸬◊✲┠ⓗ㻌 ࢢࣛࣇ࢙ࣥ⾲㠃ࢆ㓟⣲ᐁ⬟ᇶ➼࡛ಟ㣭ࡍࡿࡇ࡜࡟ࡼࡾࠊࣉࣟࢺࣥఏᑟࠊᙉ☢ᛶࠊ㟁Ẽ໬Ꮫࣞࢻࢵࢡࢫάᛶ࡞࡝ࠊ⣧⢋ࢢࣛࣇ࢙࡛ࣥࡣᚓࡽࢀ࡞࠸ከᵝ࡞ᶵ⬟ᛶࢆ♧ࡍࡇ࡜ࡀᡃࠎࡢ◊✲➼ࢆ㏻ࡋ᫂ࡽ࠿࡟࡞ࡗࡓࠋ࡜ࡃ࡟ࠊ㟁Ẽ໬Ꮫฎ⌮࡟ࡼࡾస〇ࡋࡓ㓟໬≀ࢢࣛࣇ࢙ࣥࡣ௚ࡢ㑏ඖἲ࡛ࡣぢࡽࢀ࡞࠸㧗⃰ᗘࡢ CH Ḟ㝗㸦࠶ࡿ࠸ࡣ࢚ࢵࢪⅣ⣲㸧ࡀࣞࢻࢵࢡࢫࢧ࢖ࢺ࡜࡞ࡾࠊᕧ኱࡞㟁Ẽ໬Ꮫ஧㔜ᒙᐜ㔞
>1000F/g ࢆ♧ࡍྍ⬟ᛶࡀ♧၀ࡉࢀ࡚࠸ࡿࠋᮏ◊✲࡛ࡣ CH ⤖ྜࡢ⏕ᡂ࣓࢝ࢽࢬ࣒ࢆ᳨ウࡋࡓࠋ
㸰㸬◊✲ෆᐜ࡜ᡂᯝ 㟁ᴟୖ࡟ሁ✚ࡋࡓ㓟໬ࢢࣛࣇ࢙ࣥ࡟ Na2SO4 ⁐ᾮ୰࡛-1.5V(Ag/AgCl)ࢆ༳ຍࡍࡿ
࡜ࠊ㧗㟁Ꮚఏᑟᗘࢆ♧ࡍ㓟໬ࢢࣛࣇ࢙ࣥ㑏ඖయࡀᚓࡽࢀࠊ⥆࠸࡚ࠊ2.5V(Ag/AgCl)࡛㓟໬ࡍࡿ࡜ࠊ෌㓟໬యࡀᚓࡽࢀࡿࠋࡋ࠿ࡋࠊࡇࡢࡼ࠺࡞෌㓟໬యࡣඖࡢ㓟໬ࢢࣛࣇ࢙ࣥ࡜ࡣ␗࡞ࡗࡓᵓ㐀ࢆ᭷ࡍࡿ࡜࠸࠺ᐇ㦂⤖ᯝࡀᮏ◊✲ࡢࢩ࣮ࢬ࡜࡞ࡗ
࡚࠸ࡿࠋᮏ◊✲࡛ࡣ㑏ඖࠊ෌㓟໬ࠊ෌㑏ඖ࡛⧞ࡾ㏉ࡋฎ⌮ࡋࡓ㓟໬ࢢࣛࣇ࢙ࣥ
࡟ࡘ࠸࡚ࠊFT-IR, EPR, XPS, Raman ᐃࢆ⾜࠸ྛฎ⌮ẁ㝵࡟ࡼࡾࠊ࡝ࡢࡼ࠺࡟ᵓ
㐀ࠊ⤌ᡂࡀኚ໬ࡋ࡚࠸ࡿ࠿᳨ウࢆ⾜ࡗࡓ(ヲ⣽ࡣ◊✲ᡂᯝ:ཎⴭㄽᩥ 1 ࡟グ㍕)ࠋ
ࡲࡎࠊFT-IR ࠿ࡽ᭱ึࡢ㑏ඖ࡟ࡼࡾ࢚࣏࢟ࢩᇶࡀῶᑡࡋ࡚࠾ࡾࠊࣄࢻࣟ࢟ࢩࣝᇶ
ࡣቑຍࡋ࡚࠸ࡿࡇ࡜ࡀ♧၀ࡉࢀࡓࠋ෌㓟໬௨㝆ࡢ㑏ඖࠊ㓟໬ฎ⌮࡟࠾࠸࡚ࡣࠊ
㓟⣲ᐁ⬟ᇶ⏤᮶ࡢࣆ࣮ࢡࡢᙧ≧࡟ࡣ኱ࡁ࡞ኚ໬ࡣぢࡽࢀ࡞࠸ࠋ୍᪉࡛ CH ࡟ࡘ࠸࡚ࡣࠊ㓟໬࡟ࡼࡾᾘኻࡋࠊ㑏ඖ࡟ࡼࡾ⏕ᡂࡍࡿ࡜࠸࠺ྍ㏫ⓗኚ໬ࡀぢࡽࢀࡓࠋ
EPRᐃ࠿ࡽࡣࠊ㓟໬࡟ࡼࡾⅣ⣲ࣛࢪ࢝ࣝࣆ࣮ࢡࡀ⏕ᡂࡋࠊ㑏ඖ࡟ࡼࡾᾘኻࡍ
ࡿ࡜࠸࠺ྍ㏫ⓗ࡞⤖ᯝࡀᚓࡽࢀࡓࠋୖグࡢ⤖ᯝ࠿ࡽࠊ㓟໬ࢢࣛࣇ࢙ࣥࡢ㟁Ẽ໬Ꮫ㑏ඖ࡟ࡼࡾ C-O-C ⤖ྜࡀ COH-CH ⤖ྜ࡟ኚ᥮ࡉࢀࠊ෌㓟໬௨㝆ࡣ CH ࡀ C࣭㸦ࣛࢪ࢝ࣝ㸧࡜࡞ࡿ཯ᛂࡀ⪃࠼ࡽࢀࡿࠋࡲࡓࠊ෌㓟໬࡟ࡼࡾ࢚࣏࢟ࢩᇶࡀ⏕ᡂࡋ࡞࠸ࡇ࡜ࡣࠊ㑏ඖ࡟ࡼࡾ C=C ⤖ྜࡀ⏕ᡂࡋ࡞࠸ࡇ࡜ࢆ♧ࡋ࡚࠾ࡾࠊୖグ཯ᛂࢆᨭ107ᣢࡍࡿࠋ௨ୖࡢ཯ᛂࢆࡲ࡜ࡵࡓࡶࡢࡀᅗ 1 ࡜࡞ࡿࠋ࣐ࣛࣥᩓ஘࡜㟁Ẽ໬Ꮫ ᐃ࠿ࡽࠊ㑏ඖ࡟ࡼࡾᑟධࡉࢀࡓ㟁Ꮚࡣ࠶ࡿ⛬ᗘ㠀ᒁᅾ໬ࡋ࡚࠾ࡾࠊ㏆᥋ࡍࡿ OH
࡟ࣞࢻࢵࢡࢫάᛶࢆ௜୚ࡍࡿࡇ࡜ࡀ♧၀ࡉࢀࡿࠋ

ᅗ 1.㓟໬ࢢࣛࣇ࢙ࣥࡢỈ⁐ᾮ୰࡛ࡢ㟁ゎ཯ᛂ/࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ཎⴭㄽᩥ㸼࣭1. Taniguchi, T.; Wong, K. C.; Nurdiwijayanto, L.; Hatakeyama, K.; Awaya, K.; Ida, S.;
Koinuma, M.; Ueda, S.; Osada, M.; Yokoi, H., Reversible hydrogenation and irreversible
epoxidation induced by graphene oxide electrolysis. Carbon 2021, 177, 26-34.
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ᚚࡍࡿ᪂つ㧗ຠ⋡⇕㟁ⷧ⭷ࡢ๰⏕Fabrication and characterization of Hybridge atomic films for efficient flexible ThermoElectric systemሯ㉺୍ோ࣭NIMS࣭WPI-MANA࣭JSPS ◊✲ဨ࣭MANA ୺௵◊✲⪅㝞ಇ⥔࣭ᅜ❧ྎ‴኱Ꮫᮦᩱ⛉Ꮫ࣭≉⪸ᩍᤵ㛗⏣ ᐇ࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ࣭ᩍᤵ㸯㸬◊✲┠ⓗ 㻌 ༢ᒙཎᏊ⭷䜢ከ㔜✚ᒙ䛧䛯ከ᥋ྜ⭷䛾䝣䜷䝜䞁ఏ㐩䛸㟁Ꮚఏᑟ䛿䚸✚ᒙ⭷㛫᥋ྜ䛾ᙉ䛥䛷Ỵ䜎䜛䚹ᚑ᮶䚸ኳ↛ཎᏊ⭷䛾ཎᏊ⭷㛫㝸䜢ᗈ䛢䜛䛯䜑䛻䚸ཎᏊ⭷䜢୍᪦ศ㞳䛧䛶⁐ᾮศᩓศᏊ
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ᅛయᇶᯈ࡟⛣ࡋྲྀࡿ᪉ἲ㸦LB ἲ㸧࡜ẚ㍑
ࡋ࡚ࠊ᱁ẁ࡟⡆␎࡛࠶ࡾ࡞ࡀࡽࡶࠊࢼࣀ
ࢩ࣮ࢺࢆ༢ᒙ࡛ᇶᯈୖ࡟௜╔ࡉࡏࡿไᚚ
ᛶ࡜෌⌧ᛶࡀ㧗࠸ࠋࡇࡢ㛗⏣ࢢ࣮ࣝࣉ⊂⮬ᢏ⾡ࢆ㛗⏣ᩍᤵ࡞ࡽࡧ࡟༤ኈᏛ⏕㸦Shi
ࡉࢇ㸧࠿ࡽ┤᥋ᩍ࠼࡚㡬ࡁࠊ༢ᒙ⭷ᙧᡂᅗ䠎䠊㛗⏣䜾䝹䞊䝥䛷㛤Ⓨ䛧䛯䝢䝨䝑䝖ᡂ⭷ἲ䚹䝢䝨䝑䝖䛛䜙䛾⁐ᾮ⁲ୗ䛸྾䛔ྲྀ䜚䛾㏿ᗘ䛸⁐ᾮ⃰ᗘ䛾ㄪᩚ䛻䜘䛳䛶䚸༢ᒙ⭷䛾⣽ᐦᙧᡂ䛸Ꮩ❧ᙧᡂ䜢ㄪᩚ䛧䛶㐀䜛䛣䛸䛜ฟ᮶䜛䜘䛖䛻䛺䛳䛯䚹111

࡜ᡃࠎࡢ⣲Ꮚホ౯࡬ࡢᒎ㛤ࢆ᳨ウࡋࡓࠋ㛗⏣ࢢ࣮ࣝࣉ࡛ࡢ༢ᒙࢼࣀࢩ࣮ࢺᡂ⭷ࡢ෌⌧㸦⣽ᐦᙧᡂ㸧ࡔࡅ࡛࡞ࡃࠊ⁐ᾮࡢ⁲ୗ࡜྾
࠸ྲྀࡾࡢ㏿ᗘㄪᩚ࡞ࡽࡧ࡟⁐ᾮ୰ࡢࢼࣀࢩ
࣮ࢺ∦ᐦᗘࢆ⣽࠿ࡃㄪᩚࡍࡿࡇ࡜࡛ࠊ࣑ࢡ
ࣟࣥࢧ࢖ࢬࡢ኱ࡁ࡞༢⤖ᬗ∦ࢆᇶᯈୖ࡟Ꮩ
❧ࡋ࡚సࢀࡿࡼ࠺࡟࡞ࡗࡓࠋᚑ᮶ࠊࢫࣆࣥ
ࢥ࣮ࢺ➼࡛ࢼࣀࢩ࣮ࢺࢆᇶᯈୖ࡟ሬᕸࡋ࡚ࠊ
ࢼࣀࢩ࣮ࢺࡀ㈞ࡾ௜ࡃ௜࠸ࡓ㒊ศࢆගᏛ㢧ᚤ㙾࡛ほᐹࡋ࡚͆౑࠼ࡿ㒊ศࢆ᥈ࡍ͇ࡇ࡜
࡛ᐇ㦂࡟౑⏝ࡋ࡚࠸ࡓࡀࠊ௒ᚋไᚚࡋ࡚༢
ᒙ༢⤖ᬗ∦ࡸ⣽ᐦ⭷ࢆ㐀ࡿࡇ࡜ࡀฟ᮶ࡿ⏝ᅗ䠏䠊ᚤ⣽䝘䝜䝅䞊䝖∦䛻┤᥋➃Ꮚ䜢ᙧᡂ䛩䜛䛣䛸䛜ฟ᮶䜛 㻹㻱㻹㻿 䝬䝇䜽䜢 㻿㻻㻵 ᇶᯈ䜢౑䛳䛶ᙧᡂ䛧䛯䚹䜎䛯䚸䛣䛾䝬䝇䜽䜢ᇶᯈୖ䛾䝘䝜䝅䞊䝖∦䛻఩⨨ྜ䜟䛫䛩䜛䛯䜑䛾䜰䝷䜲䝯䞁䝖䝇䝔䞊䝆䜒⪃᱌䛧ヨస䛧䛯䚹㻌࡟࡞ࡾࠊ኱ࡁ࡞ኚ㠉࡛࠶ࡿࠋၥ㢟ࡣࠊ⣽ᐦ⭷࡛࠶ࡗ࡚ࡶࠊ㞄᥋ࡍࡿ༢⤖ᬗࢼࣀࢩ࣮ࢺ㛫ࡢ㟁Ẽఏᑟ࡜ࣇ࢛ࣀࣥఏᑟࡣࠊ
࣍ࢵࣆࣥࢢ࡜࡞ࡿࡓࡵ㧗᢬ᢠࡢࡲࡲ࡛࠶ࡿࠋ
ᚑ᮶ࡣࠊᏙ❧ࢼࣀࢩ࣮ࢺࢆ㢧ᚤ㙾࡛᥈ࡋ࡚ࠊ

ᅗ䠐䠊㻹㻱㻹㻿 䝬䝇䜽䛾୰ᚰ㒊ศ䚹ᩘ䝭䜽䝻䞁䛾Ꮩ❧༢ᒙ⭷䛜స䜜䜜䜀䚸➃Ꮚ䜢ᙧᡂฟ᮶䜛䛣䛸䛜ฟ᮶䜛䜘䛖䛻䛺䛳䛯䚹㻌ணࡵᇶᯈୖ࡟సࡾ㎸ࢇ࡛࠾࠸఩⨨࣐࣮ࢡ࡜ࡢ┦ᑐ఩⨨࡟࠶ࢃࡏ࡚ࠊ㟁Ꮚࣅ࣮࣒㟢ගࢩࢫࢸ࣒࡛㟁ᴟᵓ㐀ࢆᥥ⏬ࡋ࡚ࠊ㔠ᒓ⵨╔࡛㟁ᴟࢆᙧᡂࡋ࡚࠸ࡓࠋᴟࡵ࡚ᡭ㛫ࡢ࠿࠿ࡿ◊✲࡛࠶ࡾࠊ㟁Ꮚࣅ࣮࣒ࢩࢫࢸ࣒ࡸࣞࢪࢫࢺࣉ
ࣟࢭࢫ࡜ཎᏊ⭷࡜ࡢ͆┦ᛶ͇ࡀ࠶ࡗࡓࠋ౛࠼ࡤࠊࣞࢪࢫࢺ๤㞳ᾮ࡟ཎᏊ⭷ࡀ⁐ゎࡍࡿࡇ࡜ࡸࠊ㟁Ꮚࣅ࣮࣒࡟ࡼࡿᮦᩱ◚ቯࡀ⏕ࡌࡿࡇ࡜ࡶ࠶ࡗࡓࠋ௒ᅇ㛤Ⓨࡉࢀࡓ㛗⏣ࢢ࣮ࣝࣉᡂ⭷ἲ࡜ MEMS ➃Ꮚᙧᡂἲࡢ⤌ࡳྜࢃࡏ࡛㟁ᴟᵓ㐀ࡀసࢀࡿࡼ࠺࡞ࡗࡓࡇ࡜࡛ࠊ༢ᒙ
ࢼࣀࢩ࣮ࢺ࡟ຍᕤࢲ࣓࣮ࢪࢆཬࡰࡍࡇ࡜ࡀ࡞ࡃ⣲Ꮚࢆసࡾホ౯ฟ᮶ࡿࡼ࠺࡟࡞ࡗࡓࠋࡉ
ࡽ࡟ࠊ㟁ᴟ఩⨨ࢆ┤᥋ほᐹࡋ࡞ࡀࡽྜࢃࡏࡿࡇ࡜ࡀฟ᮶ࡿࡓࡵࠊ㟁ᴟ㛫࡟ࢼࣀࢩ࣮ࢺቃ
⏺ࢆ㸯ࡘࡔࡅᣳࡴᵓ㐀ࢆ㐀ࡿࡇ࡜ࡶ࡛ࡁࡓࠋ⌧ᅾࠊࡇࢀࡽࡢࢲ࣓࣮ࢪࣞࢫ⣲Ꮚࡢホ౯ࡀ㐍ࡳࡘࡘ࠶ࡾࠊᚑ᮶ぢⴠ࡜ࡉࢀ࡚࠸ࡓ㟁Ẽఏᑟࡸࣇ࢛ࣀࣥఏᑟࡢ͆ᮦᩱᮏ᮶ࡢ≉ᛶ͇ࢆࠊ᫂ࡽ࠿࡟࡛ࡁࡿࡼ࠺࡟࡞ࡗ࡚ࡁࡓࠋ

࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ཎⴭㄽᩥ㸼
࣭On/off-boundary of Photocatalytic Activity between Single- and Bi-layer MoS2,
T.Taniguchi, N.Leanddas, S.Li, H.E.Lim, Y.Miyata, X.Lu, R.Ma, D.-M.Tang, S.Ueda,
K.Tsukagoshi, T.Sasaki, M.Osada,
ACS Nano 14 (6) 6663–6672 (2020).
㸺ᅜ㝿࣭ᅜෆ఍㆟㸼㸦11pt ᫂ᮅయ, Times㸧࣭ ࡞ࡋ㸺⏘ᴗ㈈⏘ᶒ㸼࣭࡞ࡋ

112

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113ู⣬ᵝᘧ㸰㸫㸰ࣆࢥỈຊⓎ㟁ࢩࢫࢸ࣒ࡢᐇ⏝໬◊✲㸦14pt ࢦࢩࢵࢡయ㸧A study on practical use of a pico hydropowerᮏᶫ ඖ࣭㭯ᒸᕤᴗ㧗➼ᑓ㛛Ꮫᰯ࣭๰㐀ᕤᏛ⛉࣭ᩍᤵෆᒣ▱ᐇ࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ࣭䝅䝇䝔䝮◊✲ᡤ࣭๪ᡤ㛗ᩍᤵ㸯㸬◊✲┠ⓗ ᚑ᮶ࡢࣆࢥỈຊ࡟㛵ࡍࡿ◊✲࡛ࡣࣁࣈࢲ࢖ࢼࣔࢆⓎ㟁ᶵ࡜ࡍࡿ➼ࡢ⡆᫆ⓗ࡞ࡶࡢࡀከࡃ㸪ࣉࣟࢺࢱ࢖
ࣉࢆヨసࡋ࡚ྍ⬟ᛶࢆ♧ࡍ࡟࡜࡝ࡲࡿࡶࡢࡀከ࠸㸬ᮏ◊✲ࡢ᭱⤊┠ᶆࡣ㸪ᆅඖࡢேࡀタ⨨࣭㐠⏝࡛ࡁࡿࣆࢥỈຊⓎ㟁ࢩࢫࢸ࣒ࡢᵓ⠏࡛࠶ࡿ㸬➹⪅ࡽࡣࡇࢀࡲ࡛㸪⋇ᐖᑐ⟇ࡢ㟁Ẽᰙ⤥㟁⏝࡟ࣁࣈࢲ࢖ࢼࣔࢆ฼⏝ࡋࡓࣆࢥỈຊⓎ㟁⿦⨨ࢆ㛤Ⓨࡋ࡚ࡁࡓ㸬㐠⏝ࡢ⤖ᯝ㸪▷ᮇⓗ࡟ࡣࢦ࣑࡟ࡼࡿࢺࣛࣈࣝ࡞ࡃ⤥㟁࡛ࡁࡓࡀ㸪⩚᰿㌴࡟┤⤖ࡋࡓⓎ㟁ᶵࡀᩘ࠿᭶࡛ຎ໬ࡋࡓ㸬ࡑࡇ࡛㸪㐣ཤࡢ୙ලྜࢆᨵၿࡍࡿ࡜࡜ࡶ࡟㸪ᆅᇦࡢேࡀᢅ࠸ࡸࡍ࠸Ⓨ㟁ࢩࢫࢸ࣒ࢆタィࡋ㸪㐠⏝ヨ㦂ࢆ㏻ࡋ࡚᏶ᡂᗘࡢ㧗࠸ࢩࢫࢸ࣒ࡢᐇ⌧ࢆࡵࡊࡍ㸬㸰㸬◊✲ෆᐜ࡜ᡂᯝỈ㊰ⴠᕪ㒊࡟タ⨨ࡍࡿỈ㌴࡜ࡋ࡚᪂ࡋ࠸ࢱ࢖ࣉࡢ⬚᥃ࡅỈ㌴ࢆ⪃᱌ࡋࡓ㸬୍⯡ⓗ࡞⬚᥃ࡅỈ㌴࡛ࡣ⩚᰿㌴ୗ㒊࡜Ỉ㊰ࡢ㝽㛫ࡀ⊃࠸ࡓࡵ࡟ࢦ࣑ࡀ⁀ࡾࡸࡍࡃ㸪㝽㛫ࢆᗈࡃࡍࡿ࡜ᑠὶ㔞࡛ࡣỈ㌴ࡀᅇ㌿ࡋ࡞࠸㸬ࡑࡇ࡛ᅗ1ࡢࡼ࠺࡟㸪ᑟỈ㊰ඛ➃࡜⩚᰿㌴ࡢ㛫࡟ࢫ࣮࣌ࢫࢆタࡅ㸪ࡑࡇࢆࢦ࣑ࡀ
㏻㐣࡛ࡁࡿࡼ࠺࡟ࡋࡓ㸬ࡇࡢ⩚᰿㌴࡟ᑐࡍࡿ┦ᑐỈὶW ࡣ ᅗ 1 ⬚᥃ࡅ⾪ືᘧỈ㌴ ᅗ 2 ┦ᑐὶ㏿ᅗ2ࡢࡼ࠺࡟⩚᰿ࡢ⿬㠃࡟స⏝ࡍࡿ࡟ࡶ㛵ࢃࡽࡎ㸪ᛶ⬟ヨ㦂࡛ࡣ0.6ࢆ㉸࠼ࡿ᭱㧗ຠ⋡ࡀ☜ㄆࡉࢀࡓ㸬ᅗ3ࡣ㟁Ẽᅇ㊰࡛࠶ࡿ㸬Ⓨ㟁ᶵฟຊ(୕┦஺ὶ)ࢆᩚὶᚋ㸪ኴ㝧㟁ụ⏝඘ᨺ㟁ࢥࣥࢺ࣮ࣟࣛࢆ௓ࡋ࡚24V
ࣂ䝑ࢸࣜ࡟᥋⥆ࡍࡿ㸬Ⓨ㟁ᶵ࡟ࡣᕷ㈍ࡢ㜵Ỉࢠࣖࢻ࣮ࣔࢱ(ಖㆤ➼⣭IP66)ࢆ᥇⏝ࡋࡓ㸬࣮ࣔࢱ࡜ࡋ࡚ࡢ௙
ᵝࡣ30W, 600rpm㸪ῶ㏿ẚ1/5࡛࠶ࡿ㸬ࢶ䜵ࢼ࣮ࢲ࢖࣮࢜ࢻDzࡣࢥࣥࢺ࣮ࣟࣛࡢ㐣㟁ᅽධຊಖㆤ⏝࡛࠶ࡿ㸬
12Vࡢ㈇Ⲵ࡟ࡣDC/DCࢥࣥࣂ࣮ࢱ࡛㝆ᅽᚋ࡟⤥㟁ࡍࡿ㸬ࡓࡔࡋ௒ᖺᗘࡣࢥࣥࣂ࣮ࢱࢆ౑ࢃࡎ㸪ࢥࣥࢺ࣮ࣟ
ࣛ࡟᢬ᢠ㈇Ⲵࢆ᥋⥆ࡋ࡚㐠⏝ࡋࡓ㸬Ⓨ㟁ᶵ≉ᛶヨ㦂ࡢ⤖ᯝ㸪ࣂࢵࢸࣜ㟁ᅽࡀ12V࡞ࡽ90rpm⛬ᗘ࡛㸪24V
࡞ࡽ150rpm⛬ᗘ࡛඘㟁ྍ⬟࡞ࡇ࡜ࡀศ࠿ࡗࡓ㸬ᅗ4ࡣⓎ㟁ᶵຠ⋡࡛㸪90rpm࡛ࡣ0.5௨ୗ㸪150rpm࡛ࡣ0.1
㹼0.2Aࡢ࡜ࡁ࡟0.5௨ୖ࡛࠶ࡿࡇ࡜ࡀࢃ࠿ࡗࡓ㸬
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0.6

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180
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 ⩚᰿㌴࡜Ⓨ㟁ᶵࢆ⤌㎸ࢇࡔỈ㌴ࣘࢽࢵࢺ(ᅗ5)ࢆᐇỈ㊰࡟タ⨨ࡍࡿᵝᏊࢆᅗ6࡟♧ࡍ㸬Ỉ㌴ࣘࢽࢵࢺࢆྞࡿࡋࡓ㛗ࡉ2mࡢࣃ࢖ࣉ(⣙5kgf)ࢆ༢⟶⏝ᅇ㌿ࢡࣛࣥࣉ࡛௬Ṇࡵࡍࡿࡇ࡜࡟ࡼࡾ㸪୍ேసᴗ࡛タ⨨࡛ࡁࡿࡼ࠺࡟ࡋࡓ㸬㊊ඖࡀᏳᐃࡋࡓሙᡤ࡛Ỉ㌴ࣘࢽࢵࢺࢆ༢⟶࡟ᅛᐃձࡋ࡚࠿ࡽ㸪2ศ௨ෆ࡛Ỉ㌴⿦⨨ࢆỈ㊰ࡢᡤᐃࡢ఩⨨࡟㝆ࢁࡍࡇ࡜նࡀ࡛ࡁࡿ㸬 Ⓨ㟁ᶵฟຊࢆᩚὶᚋ㸪᢬ᢠ㈇Ⲵ࡟᥋⥆ࡋ࡚ฟຊ≉ᛶࢆㄪ࡭ࡓ⤖ᯝ
ࢆᅗ7࡟♧ࡍ㸬᭱኱ฟຊࡣỈ఩50mm࡛11W㸪75mm࡛13W⛬ᗘ࡛࠶ࡿ㸬Ỉ㔞ࡢቑຍ࡟ẚ࡭࡚ฟຊࡢቑຍࡀᑡ࡞࠸ࡀ㸪ࡇࢀࡣỈ㌴ฟຊ≉ᛶࡢᙳ㡪࡛࠶ࡾ㸪ቑỈ᫬࡟㟁Ẽ⣔⤫ࡢ㐣㈇Ⲵ㜵Ṇࡢຠᯝࡀ࠶ࡿ㸬24V

ᅗ 5 Ỉ㌴ࣘࢽࢵࢺࡢࣂࢵࢸ࣮ࣜ࡟඘㟁ࡍࡿࡓࡵ࡟ࡣ25㹼27Vࡀᚲせ࡛࠶ࡿࡀ㸪ࡑࡢ᫬ࡢ㟁ὶ0.45A࡟࠾ࡅࡿ㟁ຊࡣ10㹼
12W⛬ᗘ࡛㸪ฟຊࡢࣆ࣮ࢡ࡟㏆࠸࡜ࡇࢁ࡛ࡢ㐠⏝ࡀྍ⬟࡞ࡇ࡜ࡀ᫂ࡽ࠿࡟࡞ࡗࡓ㸬ᅗ6 ୍ேసᴗ࡟ࡼࡿỈ㌴タ⨨ࡢᵝᏊ ᅗ7 ᐇỈ㊰࡛ࡢⓎ㟁ヨ㦂⤖ᯝ ࡇࡢⓎ㟁⿦⨨ࢆ2020ᖺ8᭶㹼12᭶ࡢ3࠿᭶༙࡯࡝⌧ᆅ࡛㐠⏝ࡋࡓ㸬ࡇࡢᮇ㛫㸪Ỉ㊰ࡢ␗≀࡟ࡼࡿࢺࣛࣈࣝࡣほᐹࡉࢀ࡞࠿ࡗࡓ㸬ኴ㝧㟁ụࢥࣥࢺ࣮ࣟࣛ࡟᢬ᢠ㈇Ⲵ(77ȍ)ࢆ᥋⥆ࡋࡓሙྜ࡟ࡣ㸪ࣂࢵࢸࣜ㟁ᅽࡀప࠸࡜㈇Ⲵࡀ㐽᩿ࡉࢀ㸪඘㟁ࡀ㐍ࡴ࡜㈇Ⲵ࡟㟁ຊ౪⤥ࡉࢀࡿࡇ࡜ࡀ☜ㄆ࡛ࡁࡓ㸬㐠⏝ヨ㦂ᚋ㸪⿦⨨ࢆศゎㄪᰝࡋࡓ࡜ࡇࢁ㸪ࢱ࢖࣑ࣥࢢ࣋ࣝࢺ࣭ࣉ࣮ࣜ࡟ᦆയ➼ࡣほᐹࡉࢀ࡞࠿ࡗࡓ㸬୍᪉㸪Ⓨ㟁ᶵ࡟ࡣእほࡢ␗ᖖࡣ࡞ࡗࡓࡀ㸪ෆ㒊࡟Ỉࡀධࡗ࡚࠸ࡓ㸬ࡇࢀࡣୗ㒊ࣉ࣮ࣜ࿘ࡾ࡛⃿ࢀࡓࢱ࢖࣑ࣥࢢ࣋ࣝࢺ
࡟ࡼࡗ࡚Ỉ⁲ࡀⓎ㟁ᶵࣉ࣮ࣜ࡟㐠ࡤࢀ㸪Ⓨ㟁ᶵ࡛၏୍㜵Ỉฎ⌮ࡀ᪋ࡉࢀ࡚࠸࡞࠸㍈࿘ࡾ࠿ࡽ౵ධࡋࡓ
ࡶࡢ࡜᥎ࡉࢀࡿ㸬ࡇࡢᑐ⟇࡜ࡋ࡚ࡣỈ㌴ࣘࢽࢵࢺࢆ1㹼2ᗘഴࡅ࡚タ⨨ࡋ㸪Ⓨ㟁ᶵࡢ㍈ࡀࢃࡎ࠿࡟ୗ

ྥࡁࡍࡿࡇ࡜ࡀ⪃࠼ࡽࢀࡿ㸬ࡲࡓ㸪ࢫࢸࣥࣞࢫ〇⋢㍈ཷࣘࢽࢵࢺ࡟ࡘ࠸࡚ࡣ㸪ࡑࡢ࢝ࣂ࣮ෆ㒊࡟Ἶࡀධࡗ࡚࠸ࡓ㸬ᅇ㌿ࡣ㔜ࡃ࡞࠿ࡗࡓࡀ㸪ෆ㍯࡜እ㍯ࡢ㛫࡟ከᑡࡢࡀࡓࡘࡁࡀ⏕ࡌ࡚࠸ࡓ㸬㍈ཷᙉᗘⓗ࡟ࡣ༑ศ࡟వ⿱ࡀ࠶ࡗࡓࡢ࡛㸪Ἶ࡟ࡼࡿ㍈ཷᦶ⪖ࡀཎᅉ࡜⪃࠼ࡽࢀࡿ㸬ࡑࡢᑐ⟇ࡣ௒ᚋࡢㄢ㢟࡛࠶ࡿ㸬࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ཎⴭㄽᩥ㸼 ࡞ࡋ㸺ᅜ㝿࣭ᅜෆ఍㆟㸼࣭ᘏ࿡ᰆⰼ㸪㰻⸨཭⪷㸪ᮏᶫඖ㸪ෆᒣ▱ᐇ㸪ⴠᕪᕤࢆ฼⏝ࡋࡓࣆࢥỈຊⓎ㟁ࢩࢫࢸ࣒ࡢᐇ⏝໬◊✲㸪➨26ᅇᗉෆ࣭♫఍ᇶ┙ᢏ⾡ࣇ࢛࣮࣒ࣛ㸪㓇⏣ᕷ㸪2021ᖺ1᭶19᪥㸬࣭㰻⸨ ཭⪷㸪ᮏᶫ ඖ㸪ෆᒣ ▱ᐇ㸪⬚᥃ࡅ⾪ືᘧỈ㌴ࡢ㛤Ⓨ㸪ᶵᲔᏛ఍ᮾ໭Ꮫ⏕఍➨51ᅇᏛ⏕ဨ༞ᴗ◊✲Ⓨ⾲ㅮ₇఍㸪ᒣᙧ኱ᏛᕤᏛ㒊(Web 㛤ദ)㸪2021ᖺ3᭶9᪥㸬㸺⏘ᴗ㈈⏘ᶒ㸼࡞ࡋ115

ู⣬ᵝᘧ㸰㸫㸰෤ᮇ㛫࡟࠾ࡅࡿᑠᆺỈ㌴ࡢ⟶⌮ࢩࢫࢸ࣒ࡢᵓ⠏Project Development of a novel monitoring system for a micro-hydraulicturbine in winter periodụ⏣ᩄᙪ࣭ಙᕞ኱Ꮫ࣭ᕤᏛ㒊࣭≉௵ᩍᤵబ⸨ᰤ୍࣭᪂₲ᕤ⛉኱Ꮫ࣭ᕤᏛ㒊࣭ᩍᤵෆᒣ▱ᐇ࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ࣭ᩍᤵ㸯㸬◊✲┠ⓗ ◊✲ࡢ᭱⤊┠ᶆࡣ㸪㞷ị࡟ᙉ࠸ฟຊ㸯N: ௨ୗࡢᑠᆺỈ㌴ࢆ㛤Ⓨࡋᐇ⏝໬ࡍࡿࡇ࡜࡛
࠶ࡾ㸪㌟㏆࡟ᏑᅾࡍࡿỈ㊰ࡸᑠつᶍἙᕝࡢỈຊ࢚ࢿࣝࢠ࣮ࡢ᭷ຠ฼⏝ࡢᣑ኱ࢆᅗࡿࡇ࡜
࡛࠶ࡿࠋ᪥ᮏࡢ㎰ᴗ⏝Ỉ㊰ࡢ㛗ࡉࡣ  ୓ NP㸦ᆅ⌫  ࿘┦ᙜ㸧࡛࠶ࡾ㸪ࡑࡢỈຊ࣏ࢸࣥࢩࣕࣝࡣཎⓎ㸯ᇶศ࡟┦ᙜࡍࡿ࡜ヨ⟬ࡉࢀ࡚࠸ࡿࠋࡋ࠿ࡋ㸪෤ᮇ㛫࡟࠾࠸࡚㸪Ỉ㊰ࡣ㞷࡛そࢃࢀ㸪ࡋࡤࡋࡤ㐠㌿㞀ᐖࡀ⏕ࡌࡿࠋୖ㏙ࡋࡓ◊✲ࡢ᭱⤊┠ᶆࢆ㐩ᡂࡍࡿࡓࡵ࡟ࡣ㸪㞷ịࡲࡌࡾࡢỈὶ࡟ᑐࡋ࡚ࡶᏳᐃࡋ࡚Ⓨ㟁ྍ⬟࡞Ỉ㌴Ⓨ㟁ࢩࢫࢸ࣒ࢆ㛤Ⓨࡍࡿࡇ࡜ࡣ
ࡴࢁࢇ㸪෤ᮇ㛫࡟࠾ࡅࡿᑠᆺỈ㌴ࡢ⟶⌮ࢩࢫࢸ࣒ࢆᵓ⠏ࡍࡿࡇ࡜ࡀ㔜せ࡛࠶ࡿࠋ ࡑࡢࡓࡵᮏ◊✲࡛ࡣ㸪㛤Ỉ㊰࡟ᐇ⿦ࡋࡓୗ᥃ࡅỈ㌴࡟ࡘ࠸࡚㸪↓✚㞷ᮇ㛫࡟࠾ࡅࡿᛶ⬟ホ౯ࢆ⾜࠺ࠋḟ࡟㸪ᵓ⠏ࡋࡓ⟶⌮ࢩࢫࢸ࣒ࢆᐇ㊶ࡍࡿࡓࡵ࡟㸪㉸㡢Ἴࢭࣥࢧࢆ⏝࠸࡚Ỉ఩ࡢィ ࢆ⾜࠸㸪ᐃつ࡟ࡼࡿ⤖ᯝ࡜ẚ㍑ࡋࡓࠋ㸰㸬◊✲ෆᐜ࡜ᡂᯝ 㛤Ỉ㊰㸦ᖜ 700mm㸪῝ࡉ 700mm㸧࡟タ⨨ࡋࡓୗ᥃ࡅỈ㌴ࡢᶍᘧᅗࢆᅗ㸯࡟♧ࡍࠋỈ㌴ࡣ⩚᰿ࡢእᙧ D=600mm㸪ෆᚄࡣ 400mm㸪ᖜ W=300mm㸪⩚᰿ᯛᩘ z=18 ᯛ࡛࠶ࡿࠋỈ㌴ࡢฟຊࡣὶ㏿ࡢ୕஌࡟ẚ౛ࡍࡿࡇ࡜࠿ࡽ㸪Ỉ㌴タ⨨఩⨨࡟࠾࠸࡚ὶ㏿ࡢቑຍࢆᅗࡿࡇ࡜ࡀ㔜せ࡛࠶ࡿࠋࡑࡢࡓࡵ࡟㸪Ỉ㌴ୖὶ࡟㞟Ỉᯈ࡜㧗ࡉ H ࡢሖᯈࢆタ⨨ࡋ࡚࠶ࡿࠋ㞟ᅗ㸯 ୗ᥃ࡅỈ㌴ࡢᶍᘧᅗᅗ㸰 ᛶ⬟᭤⥺116Ỉᯈ࡟ࡼࡾ㸪ὶ㊰ࡣ 250mm ࡟⊃ࡵࡽࢀ࡚࠸ࡿࠋH ࡣ௵ព࡟ኚ࠼ࡽࢀࡿࠋỈ㌴㍈࡟┤⤖ࡋ࡚㸪40 ᴟࡢỌஂ☢▼ᘧྠᮇⓎ㟁ᶵࡀྲྀ௜ࡅࡽࢀ࡚࠸ࡿࠋỈ㌴ᅇ㌿ᩘ 25rpm ᫬ࡢⓎ㟁ᶵࡢᐃ᱁ฟຊࡣ 30 ࣡ࢵࢺ࡛࠶ࡿࠋ ᅗ㸰࡟Ỉ㌴ࡢᛶ⬟᭤⥺ࢆ౛♧ࡍࡿࠋỈ㌴ࡢฟຊ P ࡜ᅇ㌿ᩘ Nt ࡢ㛵ಀࢆᅗ♧ࡋ࡚࠶ࡿࠋ
࡞࠾㸪Ỉ㌴タ⨨๓ࡢ㛤Ỉ㊰ࡢỈ῝ࡣ 0.08m㸪ὶ㏿ࡣ 1.2m/s ࡛࠶ࡾ㸪ὶ㔞 Q=0.067m3/s ࡛࠶ࡿࠋH ࡣ 0㸪0.1㸪0.2m ࡟タᐃࡋࡓࠋH ࡟ࡼࡾ㸪ᛶ⬟᭤⥺ࡣ኱ࡁࡃኚ໬ࡍࡿࠋH =0 ࡢ࡜ࡁ㸪᭱኱ฟຊࡣ 16 ࣡ࢵࢺ⛬ᗘ࡛࠶ࡿࠋH =0.1m ࡢ࡜ࡁ㸪᭱኱ฟຊࡣ 27 ࣡ࢵࢺ㸪H =0.2m
࡛ࡣ 20 ࣡ࢵࢺ࡛࠶ࡿࠋࡇࡢࡇ࡜࠿ࡽ㸪᭱㐺࡞ H ࡀᏑᅾࡍࡿࡇ࡜ࡀࢃ࠿ࡿࠋࡑࢀࡒࢀࡢ
H ࡟ᑐࡋ࡚㸪᭱኱ฟຊࢆ♧ࡍỈ㌴ᅇ㌿ᩘࡣ 30ࠥ40rpm ࡛࠶ࡿࠋ࡞࠾㸪௒ᚋࡢㄢ㢟ࡣ㞟Ỉᯈ࡟ࡼࡾቑຍࡋࡓὶ㏿ࡸỈ఩ࡢ ᐃ㸪Ỉ㌴ࡢୖὶ࡜ୗὶࡢỈ఩ᕪǼH ࢆィ ࡋ࡚㸪ᛶ⬟᭤⥺ࢆ↓ḟඖ໬ࡋ࡚ᩚ⌮ࡍࡿࡇ࡜ࡀ㔜せ࡛࠶ࡿࠋࡑࡢࡓࡵ࡟㸪㛤Ỉ㊰ࡢᖜ᪉ྥࡢὶࢀࢆ
ᢚไࡍࡿࡓࡵ࡟Ỉ㌴ࡢୖὶ࡜
>PP@ୗὶ࡟ᖹ⾜㒊ࢆᣢࡘὶ㊰ࢆタࡅ࡚Ỉ㌴ࡢୖୗὶࢀ࡛ࡢ௦⾲ὶ㏿࡜Ỉ఩ࢆᐃ⩏ࡍࡿࡇ࡜ࡀ ⟶⌮ࢩࢫࢸ࣒ࢆ⏝࠸࡚ィࡋࡓỈ఩ࡢ୍౛ࢆᅗ㸱࡟♧ࡍࠋࡇࡢỈ఩ࡣ㉸㡢Ἴࢭࣥࢧ࡛ィࡋࡓỈ఩࡛࠶ࡿࠋỈ఩ࡣ
10mm ௨ෆࡢㄗᕪ࡛ ᐃ࡛ࡁỈ఩ᚲせ࡛࠶ࡿࠋ⮬ື ᐃᐃつ࡟ࡼࡿ ᐃ

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2021 ᖺ 3 ᭶㛤ദணᐃࡢ➨㸴ᅇࣆࢥỈຊⓎ㟁◊✲఍࡟࠾࠸࡚Ⓨ⾲ணᐃ㸺⏘ᴗ㈈⏘ᶒ㸼࣭ฟ㢪≧ἣࠊྲྀᚓ≧ἣ࡞ࡋ

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         
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tï{ðõPĒ3Cู⣬ᵝᘧ㸰㸫㸰㧗࣭㧗ᅽୗࡢ❅໬཯ᛂࢆ฼⏝ࡋࡓ᪂つ㓟❅໬≀ගゐ፹ᮦᩱࡢ᥈⣴Search for Novel Oxynitride Photocatalysts via Nitridation Reaction under High
Temperature and High Pressure᳜⏣⣫୍㑻࣭Ꮫ⩦㝔኱Ꮫ࣭⌮Ꮫ㒊໬Ꮫ⛉࣭ຓᩍ✄⇃ᐅஅ࣭Ꮫ⩦㝔኱Ꮫ࣭⌮Ꮫ㒊໬Ꮫ⛉࣭ᩍᤵᑠᯘு࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ ᮦᩱ๰〇㒊㛛࣭෸ᩍᤵ㸯㸬◊✲┠ⓗගゐ፹཯ᛂࢆ฼⏝ࡋࡓỈ⣲〇㐀ࡣࠊ໬▼⇞ᩱࢆᾘ㈝ࡍࡿࡇ࡜࡞ࡃࠊỈ࡜ග࠿ࡽ࢚ࢿࣝࢠ࣮※࡛࠶ࡿỈ⣲ࢆసࡾฟࡏࡿࡓࡵࠊࡑࡢᐇ⏝໬ࡀᮇᚅࡉࢀ࡚࠸ࡿࠋ
ᐇ⏝໬࡟㝿ࡋ࡚ࡣỈ⣲〇㐀ࢥࢫࢺࡢほⅬ࠿ࡽࠊ͆ග※͇࡜ࡋ࡚ኴ㝧ගࢆ฼⏝ࡍࡿࡇ࡜ࡀ᝿ᐃࡉࢀࡿࠋࡇࡢࡇ࡜࠿ࡽࠊගゐ፹ᮦᩱ࡟ࡣኴ㝧ග࡟ከࡃྵࡲࢀࡿྍどගࢆ྾཰࡛ࡁࡿࡇ࡜ࠊ྾཰ࡋࡓྍどගࢆගゐ፹཯ᛂ࡟฼⏝࡛ࡁࡿࡇ࡜ࡀ୙ྍḞ
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ᅛయ❅⣲※ࢆ฼⏝ࡋࡓ㧗 ࣭㧗ᅽୗ࡛ࡢ㓟❅໬≀ྜᡂࢆ࠸ࡃࡘ࠿ヨࡋࡓࡀࠊࡇࢀࡲ࡛࡟᪂つ≀㉁ࡣᚓࡽࢀ࡚࠸࡞࠸ࠋ
ࡓࡔࡋࠊࣂࢹࣛ࢖ࢺᵓ㐀ࢆࡶࡘ 7D21
࡟ࡘ࠸࡚㧗 ࣭㧗ᅽฎ⌮ࡋࡓ࡜ࡇࢁࠊ
ࡑࡢ㧗ᅽ┦ࢆ୍㒊෾⤖ࡋࠊᖖᅽ࡛Ᏻᐃ
໬ࡉࡏࡿࡇ࡜࡟ᡂຌࡋࡓ㸦ᅗ㸯㸧ࠋᚓࡽࢀࡓ㧗ᅽ┦ࡣࠊᅇᢡ⥺ࡢᩘࡀᑡ࡞࠸ࡓ
ࡵṇ☜࡟ࡣุ᩿࡛ࡁ࡞࠸ࡀࠊᑐ⛠ᛶࡢ
ほⅬ࠿ࡽ &D) ᵓ㐀࡟ᖐᒓ࡛ࡁࡿ࡜⪃࠼ࡽࢀࡿࠋ௒ᚋࡣࡉࡽ࡞ࡿ㧗 ୗ࣭㧗ᅽᅗ㸯㧗ᅽฎ⌮๓ᚋࡢ 7D21 ࡢ ;5' ࣃࢱ࣮ࣥ

124

ୗ࡛ࡢฎ⌮࡜ᛴ㏿෾⤖ࢆ࠾ࡇ࡞࠸ࠊ㧗ᅽ┦ࡢ⣧ᗘྥୖ࡜ࠊ༢┦࡛ࡢᅇ཰ࢆ┠ᣦࡍࠋ༢┦࡛ᅇ཰࡛ࡁࡓヨᩱ࡟ࡘ࠸࡚ࡣᨺᑕග ; ⥺ࢆ฼⏝ࡋࡓ⤖ᬗᵓ㐀ゎᯒ࡜ගゐ፹≉ᛶࡢホ౯ࢆ࠾ࡇ࡞࠺ࠋ
࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ཎⴭㄽᩥ㸼࣭࡞ࡋ࣭ୖグࡢ㧗ᅽ┦࡟ࡘ࠸࡚ࠊ༢┦ྜᡂࠊ⤖ᬗᵓ㐀ゎᯒࢆ࠾ࡇ࡞ࡗࡓᚋ࡟ᢞ✏ணᐃ㸺ᅜ㝿࣭ᅜෆ఍㆟㸼࣭ ࡞ࡋ࣭➨ 62 ᅇ㧗ᅽウㄽ఍࡟࡚Ⓨ⾲ணᐃ㸺⏘ᴗ㈈⏘ᶒ㸼࣭ฟ㢪࡞ࡋ125ู⣬ᵝᘧ㸰㸫㸰ᾮ┦ࢆ⏝࠸ࡓ㓟ࣇࢵ໬≀ࡢྜᡂ࡜ࡑࡢᶵ⬟
6\QWKHVLVRIR[\IOXRULGHVLQOLTXLGSKDVHDQGWKHLUIXQFWLRQVᮅ಴⿱௓࣭᪩✄⏣኱Ꮫ࣭ྛົグᛕᮦᩱᢏ⾡◊✲ᡤ࣭୺௵◊✲ဨẂ⃎࣭ᮾ໭኱Ꮫ࣭ከඖ≀㉁⛉Ꮫ◊✲ᡤ࣭ᩍᤵ
ᑠᯘு࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ࣭෸ᩍᤵ
㸯㸬◊✲┠ⓗ 㓟ࣇࢵ໬≀ࡣࠊ༢⣧࡞㓟໬≀࡜ࡣ␗࡞ࡿࣘࢽ࣮ࢡ࡞≉ᛶࢆ᭷ࡋ࡚࠾ࡾࠊ㏆ᖺ⺯ගయẕ⤖ᬗࡸ㟁ụ⏝ά≀㉁࡞࡝࡜ࡋ࡚ᮇᚅࡉࢀࡿᮦᩱ࡛࠶ࡿࠋᚑ᮶ࠊ㓟ࣇࢵ໬≀ࡣ㧗࡛ࡢᅛ┦ྜᡂࡸỈ⇕ྜᡂἲ࡛ᚓࡽࢀ࡚ࡁࡓࠋᅛ┦཯ᛂ࡟ࡼࡿྜᡂ࡛ࡣ┿✵ᑒ⟶ฎ⌮ࡀᚲせ࡛࠶ࡿ࡜ࡇ࡜ࡸࠊỈ⇕ྜᡂἲ࡛ࡣ༴㝤࡞ࣇࢵ㓟Ꮡᅾୗ཯ᛂࡉࡏ࡞ࡃ࡚࡞ࡽ࡞࠸࡞࡝ࠊྜᡂἲ
ࡀ↹㞧࡛࠶ࡗࡓࠋࡇࡢࡼ࠺࡞↹㞧࡞ྜᡂࡣᛂ⏝ྍ⬟ᛶࢆపୗࡉࡏࡿࡶࡢ࡛࠶ࡾࠊ௒ᚋᮦ
ᩱ࡜ࡋ࡚ࡼࡾ᥈⣴ࡍࡿࡓࡵ࡟ࡣᏳ඲࠿ࡘ⡆౽࡟ྜᡂࡍࡿࡇ࡜ࡀᚲせ࡛࠶ࡿࠋࡑࡇ࡛ࠊᮏ
◊✲࡛ࡣࠊỈ࡛ࡣ࡞ࡃ᭷ᶵ⁐፹ࢆ཯ᛂሙ࡜ࡋࡓࢯࣝ࣎ࢧ࣮࣐ࣝ཯ᛂ࡟╔┠ࡋࠊࣇࢵ㓟ࢆ⏝࠸ࡎ㓟ࣇࢵ໬≀ࢆྜᡂࡍࡿࡇ࡜ࢆ┠ⓗ࡜ࡍࡿࠋᮏᖺᗘࡣࠊ๓ᖺᗘࡲ࡛࡟ྜᡂࡋࡓ 1D)
࡜ 0R2 ࠶ࡿ࠸ࡣ :2 ࡜ࡢ཯ᛂ࡟ࡼࡾᚓࡽࢀࡿ 1D0R2) ࠾ࡼࡧ 1D:2) ࡢᙧែ࡜⤖ᬗᵓ㐀ࡢ㛵ಀࢆࠊ㟁Ꮚ⥺ᅇᢡࢆ⏝࠸ࡿࡇ࡜࡛᫂ࡽ࠿࡟ࡋࡓࠋຍ࠼࡚ࠊ1D) ௨እࡢ࢔ࣝ࢝
ࣜ㔠ᒓࣇࢵ໬≀࡛࠶ࡿࠊ.)5E)&V) ࡜ 0R2 ࢆ཯ᛂࡉࡏࡿࡇ࡜࡟ࡼࡾ㓟ࣇࢵ໬≀ࡢᙧᡂࢆ┠ᣦࡋࡓࠋ
㸰㸬◊✲ෆᐜ࡜ᡂᯝ  ࢯࣝ࣎ࢧ࣮࣐ࣝ཯ᛂ࡟ࡼࡾᚓࡽࢀࡿ 1D0R2) ࡜ 1D:2) ࡢᙧែ࡜⤖ᬗ᪉఩ ๓ᖺᗘࡲ࡛࡟ࠊ0R2 ࡜ 1D) ࢆࠊ࢔ࢭࢺࢽࢺࣜࣝ୰࡛ࢯࣝ࣎ࢧ࣮࣐ࣝ཯ᛂࡍࡿ࡜ࠊࣟ
ࢵࢻ≧ࡢ 1D0R2㸦ᅗ $D㸧ࡀࠊ࢚ࢱࣀ࣮ࣝ୰࡛ࢯࣝ࣎ࢧ࣮࣐ࣝࡍࡿ࡜ࠊከ㠃య≧ࡢ⢏Ꮚ࠶ࡿ࠸ࡣࡑࡢ⢏Ꮚࡀ㐃࡞ࡗࡓ 1D0R2)㸦ᅗ %D㸧ࡀྜᡂ࡛ࡁࡿࡇ࡜ࡀࠊࡲࡓࠊ:2࡜ 1D) ࢆ࢖ࢯࣉࣟࣃࣀ࣮ࣝ୰࡛ࢯࣝ࣎ࢧ࣮࣐ࣝ཯ᛂࡍࡿࡇ࡜࡛ࠊษ㡬ඵ㠃యࡢ
1D:2)㸦ᅗ &D㸧ࡀᚓࡽࢀࡿࡇ࡜ࡀࢃ࠿ࡗ࡚࠸ࡓࠋᮏᖺᗘࡣࠊࡑࢀࡽࡢ㟁Ꮚ⥺ᅇᢡീࢆᐃࡍࡿࡇ࡜࡟ࡼࡗ࡚ࠊᙧែ࡜⤖ᬗ᪉఩ࡢ㛵ಀࢆㄪᰝࡋࡓࠋ ࢔ࢭࢺࢽࢺࣜࣝ୰࡛ྜᡂࡋࡓࣟࢵࢻ≧ 1D0R2) ࡢ㟁Ꮚ⥺ᅇᢡ㸦ᅗ $E㸧࡛ࡣࠊࣟࢵ
ࢻࡢ㛗㍈᪉ྥࡀ 1D0R2) ୰ࡢ>0R2)@㙐ࡢ᪉ྥ࡛࠶ࡿࡇ࡜ࡀ᫂ࡽ࠿࡜࡞ࡗࡓ㸦ᅗ $F㸧ࠋࡇࢀࡣࠊ㙐ࡀඹ᭷⤖ྜⓗ࡟ᡂ㛗ࡋ࡚࠸ࡿࡇ࡜࠿ࡽࠊ㙐᪉ྥ࡟⤖ᬗࡀᡂ㛗ࡋࡸࡍ࠸࡜⌮ゎࡍࡿࡇ࡜ࡀ࡛ࡁࡿࠋࡋ࠿ࡋ୍᪉࡛ࠊከ㠃య≧ࡢ 1D0R2) ࡢ㟁Ꮚ⥺ᅇᢡ㸦ᅗ %E㸧࡛ࡣࠊ㙐᪉ྥ࡬ࡢᡂ㛗ࡀᙉࡃᢚไࡉࢀ࡚࠸ࡿࡇ࡜ࡀࢃ࠿ࡿ㸦ᅗ %F㸧ࠋࡇࡢ⌮⏤ࡣ᏶඲࡟⌮ゎࡍࡿࡇ࡜ࡣ࡛ࡁ࡚࠸࡞࠸ࡀࠊ࢚ࢱࣀ࣮ࣝࢆ⏝࠸࡚ 1D0R2) ࢆྜᡂࡋࡓሙྜ࡟ࠊ୍㒊ࡢ
0R ࡀ㑏ඖࡋ࡚࠸ࡿࡇ࡜ࡀ☜ㄆࡉࢀ࡚࠾ࡾࠊࡇࡢ㑏ඖࡉࢀࡓ 0R ࡀ㙐᪉ྥࡢ⤖ᬗᡂ㛗ࢆ

126ᢚไࡋ࡚࠸ࡿ࡜ண᝿ࡉࢀࡿࠋษ㡬ඵ㠃యࢆ᭷ࡍࡿ 1D:2) ࡢ㟁Ꮚ⥺ᅇᢡ㸦ᅗ &E㸧࡛ࡣࠊඵ㠃యࡢ㡬Ⅼ᪉ྥࡀ>:2)@ᒙࡢ✚ᒙ᪉ྥ࠿ࡽᑡࡋࡎࢀࡓ᪉ྥ࡜࡞ࡗ࡚࠸ࡿࡇ࡜
ࡀ᫂ࡽ࠿࡜࡞ࡗࡓ㸦ᅗ &F㸧ࠋඵ㠃యࡀษࢀ࡚࠸ࡿ᪉ྥࡶᒙࡢ᪉ྥ࡜ࡣࡎࢀ࡚࠾ࡾࠊ⤖ᬗᵓ㐀࠿ࡽᙧែࢆṇ☜࡟⌮ゎࡍࡿࡇ࡜ࡣ࡛ࡁ࡞࠿ࡗࡓࠋᅗ  $  ࣟࢵࢻ≧ 1D0R2)ࠊ %  ከ㠃య≧ 1D0R2)ࠊ F  ษ㡬ඵ㠃య 1D:2) ࡢ D 7(0 ീࠊ E 㟁Ꮚ⥺ᅇᢡീࠊ F  ᙧែ࡟ᑐᛂࡍࡿ⤖ᬗ᪉఩ .)ࠊ5E)ࠊ&V) ࡜ 0R2 ࡢࢯࣝ࣎ࢧ࣮࣐ࣝ཯ᛂ
ୖグࠊ1D) ࡜ 0R2 ࠶ࡿ࠸ࡣ :2 ࡜ࡢ཯ᛂ࡜ྠᵝ࡟ࠊ௚ࡢ࢔ࣝ࢝ࣜ㔠ᒓࣇࢵ໬≀㸦.)ࠊ
5E)ࠊ&V)㸧࡜ 0R2 ࢆࢯࣝ࣎ࢧ࣮࣐ࣝ᮲௳ୗ࡛཯ᛂࡉࡏࡓࠋ.) ࠶ࡿ࠸ࡣ 5E) ࡜ 0R2ࢆ㐺ษ࡞᮲௳ୗ࡛཯ᛂࡉࡏࡓ᫬ࠊࡑࢀࡒࢀࠊ᪤ሗࡢ .0R2) ࠶ࡿ࠸ࡣ 5E0R2)㸦୧⪅ࡣྠࡌ⤖ᬗᵓ㐀ࢆ᭷ࡍࡿ㸧࡜ྠᵝࡢ ;5' ࣃࢱ࣮ࣥࡀᚓࡽࢀࠊࡑࢀࡽࡢྜᡂࡀ♧၀ࡉࢀࡓࠋ୍᪉࡛ࠊ&V) ࡢሙྜ࡟ࡣࠊ.0R2) ࠶ࡿ࠸ࡣ 5E0R2) ࡜㢮ఝࡢ ;5' ࣃࢱ࣮ࣥࢆ♧ࡍ≀㉁ࡀᚓࡽࢀࡓࡀࠊ⤖ᬗᵓ㐀ゎᯒࡀ⾜ࢃࢀࡓሗ࿌ࡣᏑᅾࡋ࡞࠸ࠋࡑࡇ࡛ࠊ
.0R2) ࠶ࡿ࠸ࡣ 5E0R2) ࡜ྠࡌ⤖ᬗᵓ㐀࡜ࡋ࡚ /H %DLO ゎᯒࢆ⾜ࡗࡓࠋࡍࡿ࡜ࠊ
.) ࡸ 5E) ࡜཯ᛂࡉࡏࡿࡇ࡜࡛ᚓࡽࢀࡿ≀㉁࡜ྠ➼ࡢಙ㢗ᗘᅉᏊࡀ࠼ࡽࢀࡓࠋຍ࠼࡚ࠊ
ࡑࢀࡒࢀࡢ࢖༙࢜ࣥᚄ࡜᱁Ꮚᐃᩘࢆࣉࣟࢵࢺࡍࡿ࡜┤⥺࡜࡞ࡗࡓࡇ࡜࠿ࡽࠊ.0R2)
࠶ࡿ࠸ࡣ 5E0R2) ࡜ྠࡌᵓ㐀ࡢ &V0R2) ࡀᚓࡽࢀ࡚࠸ࡿ࡜᥎ᐹࡉࢀࡓࠋṇ☜࡞⤖ᬗᵓ㐀ゎᯒ࡟ࡣࠊ୰ᛶᏊ⥺ᅇᢡࡀᚲせ࡜࡞ࡿࡓࡵࠊ௒ᚋヲ⣽࡟ㄪᰝࡍࡿணᐃ࡛࠶ࡿࠋ⯆࿡῝࠸ࡇ࡜࡟ࠊᚓࡽࢀࡓ &V0R2) ࡢ࣓ࢱࣀ࣮ࣝฎ⌮ᚋࡢヨᩱࡢ ;5' ࣃࢱ࣮ࣥࡣࠊ
᪤ሗࡢ &V0R2) ┦ࢆ♧ࡋࠊ⤖ᬗᵓ㐀ࡀ㌿᥮ࡋ࡚࠸ࡿࡇ࡜ࡀ♧၀ࡉࢀࡓࠋ⁐ᾮ཯ᛂ࡟ࡼࡿ㓟ࣇࢵ໬≀㛫ࡢ⤖ᬗᵓ㐀㌿᥮ࡣ㠀ᖖ࡟⌋ࡋࡃࠊࡇࡢࡼ࠺࡞཯ᛂࢆไᚚࡍࡿࡇ࡜࡛ࠊ᪂つࡢ㓟ࣇࢵ໬≀ࢆᚓࡿࡇ࡜ࡀྍ⬟࡜࡞ࡿ࠿ࡶࡋࢀ࡞࠸ࠋ
࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ཎⴭㄽᩥ㸼࣭< $VDNXUD 7 $NDKLUD 0 .RED\DVKL 0 2VDGD 6 <LQ “Synthesis of NaMoO3F andNa5W3O9F5 with Morphological Controllability in Non-Aqueous Solvents”Inorg. Chem.
   ࣭< $VDNXUD 7 +DVHJDZD 6 <LQ “Solvothermal Synthesis of Potassium, Rubidium, andCesium Molybdenum Oxyfluorides”J. Ceram. Soc. Jpn.  㸺ᅜ㝿࣭ᅜෆ఍㆟㸼࣭㉥ᖹ᭸௦㸪ᮅ಴⿱௓㸪㛗㇂ᕝᣅဢ㸪Ẃ⃎ ࠕ࢔ࣝ࢝ࣜ㔠ᒓࢱࣥࢢࢫࢸࣥ㓟ࣇࢵ໬≀ࡢࢯࣝ࣎ࢧ࣮࣐ࣝྜᡂࠖ ➨  ᅇ ࢭ࣑ࣛࢵࢡࢫᇶ♏⛉Ꮫウㄽ఍2QOLQH

127ู⣬ᵝᘧ㸰㸫㸰࢟ࣕࣅࢸ࣮ࢩࣙࣥᄇὶࡢ㦁㡢ࠊᅽຊὶ㔞≉ᛶ
Noise and Pressure-flowrate Characteristics of a Cavitating Jet㣤ᑿ ᫛୍㑻࣭ಙᕞ኱Ꮫ࣭ᕤᏛ㒊ᶵᲔࢩࢫࢸ࣒ᕤᏛ⛉࣭෸ᩍᤵΏ㎶ ࠶࠿ࡾ࣭ಙᕞ኱Ꮫ࣭኱Ꮫ㝔ᶵᲔࢩࢫࢸ࣒ᕤᏛศ㔝࣭M2
Ṋ஭ ⿱⣖࣭ಙᕞ኱Ꮫ࣭኱Ꮫ㝔ᶵᲔࢩࢫࢸ࣒ᕤᏛศ㔝࣭M1㧗∹♩ ගኴ㑻࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ࣭ຓᩍෆᒣ ▱ᐇ࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ࣭ᩍᤵ㸯㸬◊✲┠ⓗ ୡ⏺୰࡛⏝࠸ࡽࢀ࡚࠸ࡿἜᅽࡸỈᅽ࡞࡝ᾮᅽࢆ฼⏝ࡋࡓ㥑ືࢩࢫࢸ࣒ࡢ┬࢚ࢿࣝࢠ࣮㸪㧗ຠ⋡໬࡟㛵ࡍࡿ㸬ᾮᅽࢩࢫࢸ࣒࡛࢔ࢡࢳ࢚࣮ࣗࢱࡢ㏿ᗘ㸪᪉ྥ㸪ຊࢆไᚚࡍࡿࢫࣉ࣮ࣝ
ᘚࡣࢩࢫࢸ࣒≉ᛶࢆᕥྑࡍࡿᴟࡵ࡚㔜せ࡞せ⣲࡛࠶ࡿ㸬ࢫࣉ࣮ࣝᘚෆ㒊࡛ࡣཎ⌮ୖ࢟ࣕࣅࢸ࣮ࢩࣙࣥࡀⓎ⏕ࡋࡸࡍࡃ㸪᣺ື㸪㦁㡢㸪ቯ㣗ࡀࡋࡤࡋࡤၥ㢟࡜࡞ࡿ㸬࢟ࣕࣅࢸ࣮ࢩࣙࣥ
࡟ࡣᅽຊ㸪⁐Ꮡ㓟⣲⃰ᗘ㸪ࢫࣉ࣮ࣝ㛤ཱྀ㒊㠃✚࡞࡝ࡀᙳ㡪ࡍࡿ࡜ࡉࢀ࡚࠸ࡿࡀ㸪㛤ཱྀ㒊ᙧ≧ࡢᙳ㡪࡟㛵ࡍࡿ▱ぢࡣ࡞࠸㸬ࡑࡇ࡛㸪ᮏ◊✲࡛ࡣ㸪▴ᙧ㛤ཱྀ㒊ࢆ᭷ࡍࡿ࢜ࣜࣇ࢕ࢫᯈࡢ
ᄇฟཱྀ⦪ᶓẚ㸦Aspect ratio: AR㸧࠾ࡼࡧᄇฟཱྀ๓ᚋᅽຊ᮲௳ࡀ࢜ࣜࣇ࢕ࢫࡢᅽຊὶ㔞≉ᛶ࠾ࡼࡧ㦁㡢≉ᛶ࡟୚࠼ࡿᙳ㡪࡟㛵ࡍࡿ▱ぢ⋓ᚓࢆ┠ⓗ࡜ࡋࡓ㸬㸰㸬◊✲ෆᐜ࡜ᡂᯝ
㸦㸯㸧࢟ࣕࣅࢸ࣮ࢩࣙࣥⓎ⏕ᙧែ࡜࢜ࣜࣇ࢕ࢫ⤠ࡾẚ࡜ࡢ㛵ಀᅗ㸯࡟ୗὶᅽ᮲௳ࡀ␗࡞ࡿ࢟ࣕࣅࢸ࣮ࢩࣙࣥᄇὶࡢྍど໬⏬ീࢆ♧ࡍ㸬ᄇฟཱྀ๓ᚋᅽຊ
ᕪࡣǼP=4.00MPa ୍ᐃ࡛࠶ࡿ㸬ᄇฟཱྀࡣ⏬ീࡢୗ㒊࡟࠶ࡾ㸪ࡑࡇ࠿ࡽ⏬ീࡢୖ᪉࡟࢟ࣕࣅ
ࢸ࣮ࢩࣙࣥᄇὶࡀⓎ⏕ࡋ࡚࠸ࡿ㸬ྛ⏬ീࡢ୰ኸ௜㏆࡟࢟ࣕࣅࢸ࣮ࢩࣙࣥᄇὶࡀほᐹࡉࢀࡿ㸬ᄇ ฟ ཱྀ ୗ ὶ ᅽ ຊ P2 ࡟ ࡜ ࡶ ࡞ ࠸ ࢟ ࣕ ࣅ ࢸ ࣮ ࢩ ࣙ ࣥ ᄇ ὶ ࡢ Ⓨ ⏕ ᙧ ែ ࡀ ኚ ໬ ࡋ ࡚ ࠸ ࡿ㸬P2=0.02MPa ࡟࠾࠸࡚ࡣ㸪࢟ࣕࣅࢸ࣮ࢩࣙࣥᄇὶࡢ࿘ᅖ࡟ಶࠎࡢẼἻࡀ㆑ู࡛ࡁࡿ⛬ᗘࡢ኱ࡁࡉࡢẼἻࡀศᩓࡋ࡚࠸ࡿ㸬ࡇࡢẼἻࡣỈ୰ࡢ⁐Ꮡ✵Ẽࡀจ⦰ࡋࡓࡶࡢࡔ࡜⪃࠼ࡽࢀ㸪ୗὶᅽࡢୖ᪼࡜࡜ࡶ࡟Ỉ୰࡟ᣑᩓࡋ࡚ᾘኻࡋ࡚࠸ࡿ㸬ࡇࡢ኱ࡁ࡞ẼἻࡣ P2=0.06MPa ࡛ࡣ࡯ࡰᾘኻࡋ࡚࠾ࡾ㸪ᄇฟཱྀ࠿ࡽࡢ࢟ࣕࣅࢸ࣮ࢩࣙࣥᄇὶࡀ᫂░࡟ほᐹ࡛ࡁࡿ㸬ࡇࡢ࢟ࣕࣅ
ࢸ࣮ࢩࣙࣥᄇὶࡣ㸪㧗㏿࡛ᄇฟࡍࡿᄇὶ୰ࡢ㟼ᅽపୗ࡟ࡼࡾⓎ⏕ࡋ࡚࠸ࡿ࢟ࣕࣅࢸ࣮ࢩࣙ
࡛ࣥ࠶ࡾ㸪ᄇฟཱྀ࠿ࡽ㞳ࢀࡿ࡟ࡋࡓࡀ࠸㍯㒌ࡀ୙᫂░࡜࡞ࡾᚎࠎ࡟ᾘኻࡍࡿ㸬ẼἻࡢᾘኻ఩⨨⦪ᶓẚ࡜ᅽຊ᮲௳࡛ኚ໬ࡍࡿࡇ࡜ࡀ♧ࡉࢀࡓ㸬㸦㸰㸧࢟ࣕࣅࢸ࣮ࢩࣙࣥ࡟ࡼࡿ㦁㡢Ⓨ⏕ᙧែ࡜࢜ࣜࣇ࢕ࢫ⤠ࡾẚ࡜ࡢ㛵ಀ ᅗ㸰࡟ୗὶᅽ᮲௳ࡀ␗࡞ࡿሙྜࡢ㦁㡢ᐃ⤖ᯝࢆ♧ࡍ㸬⦪ᶓẚࡀ኱ࡁ࡞᮲௳࡛㦁㡢ࡣᑠࡉ࠸ഴྥࡀぢࡽࢀࡿ㸬ࡲࡓ㸪ࡍ࡭࡚ࡢ⦪ᶓẚ᮲௳࡟࠾࠸࡚ୗὶᅽࡀ P2=0.06MPa ௜㏆
࡛㦁㡢ࡀᴟ኱್ࢆ♧ࡋ࡚࠾ࡾ㸪ᅗ㸯ࡢ኱ࡁ࡞ẼἻࡢᾘኻࢱ࢖࣑ࣥࢢ࡜୍⮴ࡋ࡚࠸ࡿ㸬ࡇࢀࡽࡢ㛵ಀㄪᰝࡣ௒ᚋࡢ᳨ウㄢ㢟࡛࠶ࡿ㸬

128

P2=0.02MPa

P2=0.06MPa

P2=0.13MPa(a) AR=1.00(b) AR=6.76 (left: x-y, right: x-z)(c) AR=52.0 (left: x-y, right: x-z)㸦ǼP=4.00MPa㸪DO=5.21~6.56ppm㸪T=22.2~24.7Υ㸧ᅗ 1 ࢟ࣕࣅࢸ࣮ࢩࣙࣥᄇὶࡢྍど໬⏬ീ㸦ǼP=4.00MPa㸪DO=5.21~6.56ppm㸪T=22.2~24.7Υ㸧ᅗ 2 ୗὶᅽ࡟ࡼࡿ࢟ࣕࣅࢸ࣮ࢩࣙࣥ㦁㡢ࡢኚ໬࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ཎⴭㄽᩥ㸼 ࡞ࡋ㸺ᅜ㝿࣭ᅜෆ఍㆟㸼࣭2021 ᖺ 3 ᭶ 6 ᪥ࡢ᪥ᮏᶵᲔᏛ఍໭㝣ಙ㉺ᨭ㒊➨ 58 ᮇ⥲఍࣭ㅮ₇఍࡛Ⓨ⾲ணᐃ㸺⏘ᴗ㈈⏘ᶒ㸼࡞ࡋ

129

㔠ᒓ࢞ࣛࢫࡢ⤌⧊ไᚚ࡟ࡼࡿỈ⣲྾ⶶᮦᩱࡢ◊✲Study on hydrogen absorption of metallic glass-derived nanomaterialsᒣᾆ┿୍࣭⫋ᴗ⬟ຊ㛤Ⓨ⥲ྜ኱Ꮫᰯ࣭⬟ຊ㛤Ⓨ㝔࣭෸ᩍᤵ᭹㒊ᑗ᭸࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ࣭ຓᩍᑠ⃝ṇ㑥࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ࣭ᩍᤵ㸯㸬◊✲┠ⓗỈ⣲ࡣ᪂つ࢚ࢿࣝࢠ࣮࢟ࣕࣜ࢔࡜ࡋ࡚ὀ┠ࡉࢀ࡚࠸ࡿࡀࠊࡑࡢ㐠ᦙࡸ౪⤥࡟ᑐࡋ࡚኱
᥃࠿ࡾ࡞タഛࡸ㧗ᅽ࣎ࣥ࣋࡞࡝ࢆᚲせ࡜ࡋ࡚࠾ࡾࠊᑠᆺ໬ࡸࢹࣂ࢖ࢫࡢືຊ※࡜ࡋ࡚ࡢ㐺⏝ࡣᅔ㞴࡛࠶ࡿࠋࡑࡇ࡛ࠊ࣑࣓࣮ࣜࢱ࣮௨ୗࡢᴟᑠࢹࣂ࢖ࢫྥࡅࡢỈ⣲㈓ⶶ※࡜ࡋ࡚ࠊ⎔ቃ࣭࢚ࢿࣝࢠ࣮ྥࡅᛂ⏝࡟ྥࡅࡓ᪂ᮦᩱࡢ㛤Ⓨࡀᮇᚅࡉࢀࡿࠋ㔠ᒓ࢞ࣛࢫࡣࠊ⤖ᬗ㉁㔠ᒓ࡜ࡣ␗࡞ࡿᵓ㐀⏤᮶ࡢ≉␗ⓗ࡞ᛶ㉁ࢆᣢࡗ࡚࠾ࡾࠊᵝࠎ࡞ᶵ⬟ᛂ⏝ࡀ᳨ウࡉࢀ࡚࠸ࡿࠋᮏ◊✲࡛ࡣࠊỈ⣲ࡢ྾ⶶᛶࢆ♧ࡍ᪂つ㔠ᒓ࡛࠶ࡿ㔠ᒓ࢞ࣛࢫㄏᑟయࢆ⏝࠸࡚ࠊᩄ㏿࡞Ỉ⣲྾ᨺฟࡸゐ፹཯ᛂࢆ⾜࠼ࡿࢼࣀᮦᩱࢆ๰〇ࡍࡿࡇ࡜ࢆ┠ⓗ࡜ࡍࡿࠋ
㸰㸬◊✲ෆᐜ࡜ᡂᯝ ᛴ෭࣓ࣝࢺࢫࣆࢽࣥࢢἲ࡟ࡼࡾࠊPd35Zr65ࠊPd35Zr65-xCexࠊPd30Zr65Pt5 㔠ᒓ࢞ࣛࢫࢆస
〇ࡋࡓࠋస〇ࡋࡓ㔠ᒓ࢞ࣛࢫࢆ✵Ẽ୰ 280Υ24hࠊ400Υ3hࠊ600Υ3hࠊ800Υ3h࡛⇕ฎ⌮ࡍࡿࡇ࡜࡛㓟໬࣭⤖ᬗ໬ࡉࡏࡓࠋࡇࢀࡽࡢ⇕ฎ⌮ᚋࡢヨᩱ࡟ࡘ࠸࡚┦ྠᐃࢆ
XRDࠊ⤌⧊ほᐹࢆ FE-SEM ࢆ⏝࠸࡚⾜ࡗࡓࠋゐ፹ᇶ♏≉ᛶ࡜ࡋ࡚Ỉ⣲࡜ࡢ┦஫స⏝࡟
ࡘ࠸࡚ࡣ᪼
XRD

㑏ඖἲ(TPR)࠾ࡼࡧỈ⣲྾ⶶ PCT

ᐃ࡟ࡼࡾホ౯ࢆ⾜ࡗࡓࠋᐃ࠿ࡽࠊPd35Zr65 ࢆ⇕ฎ⌮ࡋࡓヨᩱࡢ୺࡞⤖ᬗ┦ࡣ PdO ࡜ ZrO2 ࡛࠶ࡾ࢔ࣔࣝ

ࣇ࢓ࢫ┦ࡢᏑᅾࡣ☜ㄆ࡛ࡁ࡞࠿ࡗࡓࠋ୍᪉ࠊCe ࢆῧຍࡋࡓヨᩱ࡛ࡣࠊPdࠊPdOࠊZrO2
ࡢ⤖ᬗ┦ࡀ⏕ᡂࡋࡓࠋࡲࡓࠊప

࡛⇕ฎ⌮ࡋࡓヨᩱ࡛ࡣࠊ࢔ࣔࣝࣇ࢓ࢫ┦ࡀṧᏑࡋ࡚࠾

ࡾࠊCe ῧຍࡀ PdZr ⣔㔠ᒓ࢞ࣛࢫࡢ⤖ᬗ໬ࢆ㐜ࡽࡏࡓ࡜⪃࠼ࡽࢀࡿࠋ600Υ3h ⇕ฎ⌮ᚋヨᩱࡢ FE-SEM ほᐹࡢ⤖ᯝࠊ20~300nm ࡢᯒฟ≀ࡀ☜ㄆ࡛ࡁࡓࠋࡉࡽ࡟ EDX ศᯒࡢ⤖ᯝࠊࡇࢀࡽࡢᯒฟ≀ࡣ Pd ࡶࡋࡃࡣ PdO ࡛࠶ࡿࡇ࡜ࡀศ࠿ࡗࡓࠋ
ࡇࢀࡽࡢ◊✲࡟ࡼࡾࠊ⡆᫆࡞᪉ἲ࡛ࢼࣀ⢏Ꮚࢆ ZrO2 ẕ┦୰࡟ᅛᐃࡋࡓࢧ࣮࣓ࢵࢺ⤌⧊ࢆᚓࡿࡇ࡜ࡀ࡛ࡁࡓࠋ
PCT

ᐃ࡟ࡼࡾỈ⣲྾ⶶᛶࢆホ౯ࡋࡓ࡜ࡇࢁࠊᮏ◊✲࡛స〇ࡋࡓヨᩱࡣࠊ㎿㏿࡞Ỉ⣲྾ᨺฟ≉ᛶࢆ♧ࡋࡓࠋࡲࡓࠊỈ⣲ᨺฟ ᗘࡣࣂࣝࢡ Pd ⢊ᮎ࡜ẚ㍑ࡋ࡚ప ࡛࠶ࡗࡓୖࠊ
྾ⶶ㔞ࡶቑ኱ࡋࡓࠋࡋ࠿ࡋࠊPt ࡢῧຍࡣࠊỈ⣲྾ⶶ㔞ࢆῶᑡࡉࡏࠊྜ㔠⣔ࡢ㟁Ꮚ≧ែࡢ㐪࠸ࡀ᥎ᐹࡉࢀࡓࠋᮏ⣔ࡢ」ྜᮦࡣࠊ᪂ࡓ࡞≉ᛶไᚚࡢྍ⬟ᛶࡢ࠶ࡿỈ⣲྾ⶶᮦᩱ࡜ࡋ
࡚ᮇᚅ࡛ࡁࡿࠋ
㸦Fig.1 ࠾ࡼࡧ Fig.2㸧
௨ୖࡢࡼ࠺࡟ࠊỈ⣲࡟㛵ࡋ࡚ࡣࠊపᅽ࡛ࡢỈ⣲྾ⶶᛶࡸࠊỈ⣲ࡢ㛵୚ࡍࡿ໬Ꮫ཯ᛂ➼ࡢỈ⣲㛵୚཯ᛂ࡬ࡢᅛయゐ፹࡜ࡋ࡚ࡢ㐺⏝ࡀᮇᚅࡉࢀࡿࡀࠊୖグࡢ⤌⧊ᙧᡂࣉࣟࢭࢫࢆ
ά⏝ࡋࡓሙྜࠊ᪂つ࡞ゐ፹ࡸ࢞ࢫ྾ⶶᶵ⬟ᛶ㔠ᒓ㒊ᮦࡢ㛤Ⓨࡶᑗ᮶࡟ྥࡅࡓᒎ㛤ࡀྍ⬟࡛࠶ࡿࠋࡑࡇ࡛ࠊᮏ◊✲࡛ࡣࠊ࡜ࡃ࡟ᐊ

ᖖᅽ௜㏆࡛ࡢỈ⣲྾ᨺฟ≉ᛶࢆ◊✲ࡋࡓࡀࠊ130⤌⧊ไᚚ࡟ࡼࡗ࡚⏕ࡌࡓࢼࣀ⢏Ꮚ」ྜᮦࡣ᪂ࡓ࡞ゐ፹άᛶࢆᣢࡘࡓࡵࠊࡑࡢゐ፹⏝࡬ࡢᣑ኱ᛂ⏝ࡶ᳨ウࡋ࡚࠸ࡿࠋࡑࡢᒎ㛤࡛ࡣࠊ᤼࢞ࢫί໬⏝ゐ፹࡜ࡋ࡚ CO 㝖ཤ࡞ࡽࡧ࡟
NOx ➼ࡢί໬≉ᛶࢆ◊✲ࡋࡓࠋࡇࢀࡽ࡟ࡘ࠸࡚ࡣྍ⬟ᛶ࠶ࡿᡂᯝࢆᚓࡓࡓࡵࠊ୍㒊ࡣࠊ
ㄽᩥ࡛Ⓨ⾲ࡋࡓࠋ

Fig. 1. Hydrogen absorption isotherms
at 30 °C (red), 45 °C (blue), and 70 °C(green) for Zr65Pd35 heat-treated at
800 °C for 3 h in air.

Fig. 2. Hydrogen absorption isotherms
at 30 °C (red), 45 °C (blue), and 70 °C(green) for Zr65Pd30Pt5 heat-treated at
800 °C for 3 h in air.

࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ཎⴭㄽᩥ㸼
Masatomo Hattori, Naoya Katsuragawa, Shin-ichi Yamaura, Masakuni Ozawa, Catal. Today,
2020 , https://doi.org/10.1016/j.cattod.2020.04.003
㸺ᅜ㝿࣭ᅜෆ఍㆟㸼࣭ ≉࡟࡞ࡋ
㸺⏘ᴗ㈈⏘ᶒ㸼࣭≉࡟࡞ࡋ131ู⣬ᵝᘧ㸰㸫㸰┬࢚ࢿᆺගᏛᛂ⏝⤖ᬗ໬࢞ࣛࢫࡢస〇ࣉࣟࢭࢫࡢ◊✲Effects of additives on the manufacturing process of energy saving optical glass ceramics..
ⱝᮡ㝯࣭ி㒔ᕤⱁ⧄⥔኱Ꮫ㸸ᮦᩱ໬Ꮫ⣔࣭ᩍᤵ᭹㒊ᑗ᭸࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ࣭ຓᩍᑠ⃝ṇ㑥࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ࣭ᩍᤵ㸯㸬◊✲┠ⓗ㸦SW ࢦࢩࢵࢡయ㸧
 ㏱᫂⤖ᬗ໬࢞ࣛࢫࡣ࢞ࣛࢫࡢ᫆⏕ᡂᛶ࡜⤖ᬗࡢගᏛ≉ᛶࢆేࡏᣢࡘࡇ࡜࠿ࡽࠊගᏛᮦᩱ࡜ࡋ࡚ᮇᚅࡉ
ࢀࡿࡀࠊࡑࡢస〇࡟ࡣ≉ᛶࢆไᚚࡍࡿࡓࡵ࡟ῧຍࡍࡿᡂศࡀ⤖ᬗ໬࡟ཬࡰࡍᙳ㡪ࢆ᫂ࡽ࠿࡟ࡍࡿᚲせࡀ࠶ࡿࠋ᰾⏕ᡂ๣ࢆῧຍࡋ⤖ᬗ໬㐣⛬ࢆไᚚ࡛ࡁࢀࡤࠊప

࡛ࡢ⇕ฎ⌮ࡸᕤ⛬ࡢᐜ᫆໬࡟ࡼࡾࠊ┬࢚ࢿຠᯝࡀᮇᚅ࡛ࡁࡿཎᩱ࢞ࣛࢫ࡜࡞ࡿࡇ࡜ࡀᮇᚅ࡛ࡁࡿࠋⰋዲ࡞㏱᫂⤖ᬗ໬࢞ࣛࢫࢆస〇ࡍࡿࡇ࡜ࡀ࡛ࡁࡿ
ZnO-Al2O3-SiO2 ⣔࢞ࣛࢫࢆฟⓎᮦ࡜ࡋࠊࡑࢀ࡬ࡢῧຍᡂศࡀ⤖ᬗ໬࡟ཬࡰࡍᙳ㡪ࢆ᫂ࡽ࠿࡟ࡋ࡚ࠊ┬࢚
ࢿᆺ㏱᫂⤖ᬗ໬࢞ࣛࢫస〇ἲࢆ㛤Ⓨࡍࡿࠋ㸰㸬◊✲ෆᐜ࡜ᡂᯝ㸦SW ࢦࢩࢵࢡయ㸧
20ZnOÂ20Al2O3Â54SiO2Â6GaO1.5 (mol %)⤌ᡂ࡟ㄪᩚࡋࡓ࢞ࣛࢫࣂࢵࢳࢆࠊ1600ႏࠊ2h ࡢ᮲௳࡛⁐⼥ᚋࠊὶࡋࡔࡋᛴ෭ࡍࡿࡇ࡜࡛࢞ࣛࢫࢆస〇ࡋࡓࠋస〇ࡋࡓ࢞ࣛࢫࡣ᰾⏕ᡂ⇕ฎ⌮(NHT)࡜⤖ᬗᡂ㛗⇕ฎ⌮(CHT)ࡢ 2 ẁ㝵ࡢ⇕ฎ⌮ࢆ⾜ࡗࡓࠋNHT ࡣ 650~800ႏ࡛ 24h ⾜࠸ࠊࡑࡢᚋ DTA

ᐃࢆ 10ႏ/min ࡢ᪼ ㏿ᗘ࡛

1200ႏࡲ࡛⾜ࡗࡓࠋࡲࡓࠊྠᵝ࡟ NHT ࢆ⾜ࡗࡓヨᩱ࡛ CHT ࢆ 15min ࡛ 825~1100ႏࡢ᮲௳࡛⾜ࡗࡓࠋCHTࡢヨᩱࡣ XRDᐃ࡟ࡼࡾᯒฟ⤖ᬗ┦ࢆྠᐃࡋࡓࠋ
NHT800ϒʖέԻౕΝ )LJ.1 Ͷࣖͤɽ1+7 Իౕ͗߶͚͵ΖͶॊ͏

NHT775݃ধԿϒʖέԻౕͺఁԾͪ͢ɽ800ႏͲ͹ NHT ‫ޛ‬͹ࢾྋͺࣨಃ͢ɼ݃ধԿϒʖέ͗නΗ͵͖ͮͪ͞ͳ͖Δ͞͹ࢾ

ExoЍ֦ԻౕͲ NHT Νߨͮͪࢾྋ͹ DTA ଎ఈͶΓΖ݃ধԿ

NHT750
NHT725ྋͲͺ֫ਫ਼੔ͳ݃ধ੔ௗ͗ಋ࣎Ͷ਒ߨͪ͢͞ͳ͗෾͖Ζɽ

͏͞ͳ͖Δɼ24h ͹೦ॴཀྵͲͺ 775ႏͲ֫͗࠹΍ଡ͚ਫ਼੔

NHT700ЋEndoਫ਼੔ͪ֫͢͹਼ືౕͺ݃ধԿϒʖέԻౕ͗ఁ͏Άʹ୉͘

NHT675
NHT650ͤΖ͞ͳ͗ࣖ͠Ηͪɽ͞͹Իౕͺ GeO2 శՅ͹৖߻ͳಋͣ

ascastͲ͍Ζɽ݃ধԿϒʖέԻౕͺ GeO2 శՅ͹৖߻ 879ႏɼ
Ga2O3 శՅ͹৖߻ 889ႏͲ͍ͮͪɽ775ႏ24h ͹ NHT ͹‫ޛ‬
Ͷ 15min ͹ CHT Νߨͮͪࢾྋ͹ XRD ଎ఈ͹݃ՎΝ Fig.2

0

500

1000

Temperature/ΥͶࣖͤɽ850ႏ͖Δ݃ধ͹ੵड़֮͗೟͠ΗɼGahnite ͳ
Mullite ͗ੵड़ͤΖ͗Իౕ͗߶͚͵Ζͳ Mullite ͹ੵड़͗ Fig.1
ཊ੏͠Ηͱ 1100ႏͲͺ Gahnite ͹Ί͹ੵड़֮͗೟͠Ηͪɽ
*D2 ΝశՅ͢͵͏৖߻ͺ ZnAl2Si2O8 ͵ʹ͹ੵड़͗ๅࠄ

132

DTA curves of nucleated 20ZnOÂ
20Al2O3Â54SiO2Â6GaO1.5 glasses at various
temperatures.

NHT 775Υ 24h ࠐ
NHT 15m
ࠐࠐZnAl2O4(Gahnite)‫ڧ‬Al6Si2O13(Mullite)

N750 120h
N750 96h

ࠐࠐ

ࠐ

ExoЍ

1100 Υ
1000 Υ

N750 24h

900 Υ
875 Υ
‫ڧ‬

‫ڧ‬

‫ڧ ڧڧ‬

N775 48h

850 Υ

N775 24h825 Υࠉ
N775 Υ

ascast

20

40

60

0

2ȟ/degree
Fig.2

N750 72h

ЋEndoIntensity(arb.unit)

ࠐ ࠐ

Fig.3

XRD patterns of nucleated 20ZnOÂ
20Al2O3Â54SiO2Â6GaO1.5 glasses at various
temperatures.

Temperature/Υ

1000

DTA curves of nucleated 20ZnOÂ
20Al2O3Â54SiO2Â6GaO1.5 glasses at various
temperature and time͠Ηͱ͕ΕɼGa2O3 శՅͺ͞ΗΉͲๅࠄ͠Ηͱ͏Ζ GeO2 ͳಋ༹Ͷ Gahnite ͹ੵड़Νଇ਒ͤΖ͞ͳ͗Κ͖ͮͪɽ࠹΍݃ধԿϒʖέԻౕ͗ఁ͏͞ͳ͖Δ CHT ‫ޛ‬͹݃ধཽ‫࠹͗ܚ‬΍ঘ͚͠͵͏ͳߡ͓ΔΗΖ 775ႏͲ 24h
͹ NHT Νߨͮͪ‫ޛ‬Ͷ CHT Νߨͮͪࢾྋ͹ಃ໎੓ͺͨΗΆʹ߶͚͵͖ͮͪɽΓΕಃ໎͵݃ধԿΪϧηΝ
ಚΖͪΌͶ݃ধ਼֫ືౕΝ୉͚ͤ͘Ζ͞ͳΝ໪దͳ͢ͱ 750ႏ‫ ;ٶ‬775ႏͲΓΕௗ࣎ؔ͹ NHT Νߨ͏ɼ
DTA ଎ఈΝߨͮͪɽͨ͹݃ՎΝ Fig.3 Ͷࣖͤɽ775ႏͲ 48h ͹ NHT Νߨ͑ͳࢾྋͺൔಃ໎Ͷ͵ΕɼDTA଎ఈ‫ޛ‬͹݃ধԿϒʖέ͗ঘ͚͠͵ͮͪɽ͞Ηͺ݃ধ੔ௗ͗ 775ႏ48h Ͳͺ਒ߨͪͪ͢ΌͲ͍Εɼ775ႏͲ
ͺ 24h Ґ৏͹ NHT Νߨͮͱ΍݃ধԿ͗਒΋ͪΌ֫ਫ਼੔͍͗ΉΕ਒ߨ͢͵͏ͳߡ͓ΔΗΖɽ750ႏͲ NHT
Νߨ͑ͳ 96h ΉͲͺ NHT ‫ޛ‬΍ಃ໎Ͳ͍ͮͪ͗ɼ120h Ͳͺൔಃ໎Ͷ͵Ε DTA ଎ఈ͹݃ধԿϒʖέͺঘ͚͠͵ͮͪɽ96h ΉͲͺ݃ধԿϒʖέԻౕ͗ NHT ࣎ؔͳͳ΍ͶఁԾ͢ 96h Ͷ͕͜Ζ݃ধԿϒʖέԻౕͺ
775ႏ24h ͹ࢾྋΓΕ΍ఁ͏͞ͳ͖Δɼࠕյ͹ড়݇Ͳͺ࠹΍߶͏֫͹਼ືౕ͗ಚΔΗͪͳߡ͓ΔΗΖɽ͞͹ࢾྋͶ 1150ႏͲ 15min ͹ CHT Νߨ͑͞ͳͶΓΕ࠹΍ಃ໎੓͹߶͏ Gahnite ୱ૮͹݃ধԿΪϧηΝಚΖ͞ͳ͗Ͳͪ͘ɽ

࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸦SW ࢦࢩࢵࢡయ㸧㸺ᅜ㝿࣭ᅜෆ఍㆟㸼㸦11pt ᫂ᮅయ, Times㸧࣭ ୖ㔝ඃస㸪ⱝᮡ㝯㸪ZnO-Al2O3-SiO2 ⣔࢞ࣛࢫࡢ⤖ᬗ໬࡟ཬࡰࡍ Ga2O3 ࡢᙳ㡪㸪᪥ᮏᮦᩱᏛ఍ࢭ࣑ࣛ
ࢵࢡᮦᩱ㒊㛛ጤဨ఍Ꮫ⾡ㅮ₇఍㸪࢜ࣥࣛ࢖ࣥ㸪ᖹᡂ 3 ᖺ 1 ᭶ 29 ᪥.

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137࣮࢞ࢿࢵࢺᆺ㓟໬≀ࣜࢳ࣒࢘࢖࢜ࣥᅛయ㟁ゎ㉁ⷧ⭷స〇࡟㛵ࡍࡿ◊✲
Study on thin film preparation of garnet-type oxide Li-ion solid-state electrolyteᕝཱྀ᪸ᙪ࣭㟼ᒸ኱Ꮫ࣭Ꮫ⾡㝔ᕤᏛ㡿ᇦ࣭ຓᩍᆏඖᑦ⣖࣭㟼ᒸ኱Ꮫ࣭Ꮫ⾡㝔ᕤᏛ㡿ᇦ࣭෸ᩍᤵ
㕥ᮌஂ⏨࣭㟼ᒸ኱Ꮫ࣭㟁ᏊᕤᏛ◊✲ᡤ࣭ᩍᤵ⬥㇂ᑦᶞ࣭㟼ᒸ኱Ꮫ࣭๰㐀⛉Ꮫᢏ⾡኱Ꮫ㝔࣭ᩍᤵཎ⏣ಇኴ࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ࣭෸ᩍᤵ
Ᏹ἞ཎᚭ࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ࣭ᩍᤵ㸯㸬◊✲┠ⓗ 㓟໬≀ᅛయ㟁ゎ㉁ࢆ⏝࠸ࡓࠕ㓟໬≀඲ᅛయ㟁ụࠖࡣᏳ඲࠿ࡘᏳᐃ࡞ḟୡ௦ᆺ㟁ụ࡜ࡋ࡚ὀ┠ࡉࢀ࡚࠾ࡾࠊᐇ⏝໬ࡢࡓࡵ࡟ࡣ㧗࠸࢖࢜ࣥఏᑟ⋡ࢆ᭷ࡍࡿᅛయ㟁ゎ㉁ࡀồࡵࡽࢀ࡚࠸ࡿࠋࡑࡢ୰࡛ࡶࠊ࣮࢞ࢿࢵࢺᵓ㐀ࢆᣢࡘ Li7La3Zr2O12 (LLZO)ࡣ㟁ụ❆ࢆᣢࡕࠊඖ⣲⨨᥮࡟ࡼࡾᐊ ࡛ 10-4㹼10-3 S/cm ࡜࠸࠺㧗࠸ࣜࢳ࣒࢘࢖࢜ࣥఏᑟ⋡ࢆ♧ࡍࡇ࡜࠿ࡽࠊ┒ࢇ࡟◊✲ࡀ⾜ࢃࢀ࡚࠸ࡿࠋᐇ⏝໬࡟ྥࡅࡓከࡃࡢ◊✲ࡀከ⤖ᬗ↝⤖యࢆ୰ᚰ࡟㐍ࡵࡽࢀ࡚࠸ࡿࡀࠊ࢖࢜ࣥఏᑟ⋡ࡢほⅬ࡛ࡣ⢏⏺ࡸ↝⤖ᐦᗘࡢᙳ㡪ࢆᑠࡉࡃࡍࡿࡓࡵ࡟ࠊ༢⤖ᬗヨᩱࡢ᪉ࡀᮃࡲࡋ࠸ࠋࡈࡃ᭱㏆ࠊLLZO ࡢᾋ㐟ᖏᇦ⁐⼥ἲࡸࢳࣙࢥࣛࣝࢫ࣮࢟ἲ࡟ࡼࡿ
༢⤖ᬗ⫱ᡂࡀሗ࿌ࡉࢀጞࡵ࡚࠾ࡾࠊ10-3 S/cm ࣮࢜ࢲ࣮ࡢ㧗࠸್ࡀሗ࿌ࡉࢀ࡚࠸ࡿࠋࡋ࠿
ࡋࡇࢀࡽࡢᡭἲࡣࠊ≉Ṧ࡞⿦⨨ࡸ኱㔞ࡢࣜࢳ࣒࢘᥹Ⓨࢆక࠺㧗 ࡀᚲせ࡜࡞ࡿࠋࡑࡇ࡛
ᡃࠎࡣࠊ⡆౽࠿ࡘప ࡛ࡢ⤖ᬗᡂ㛗ࢆᐇ⌧࡛ࡁࡿࣇࣛࢵࢡࢫἲ࡟╔┠ࡋࡓࠋ≉࡟ LiOH
ࢆࣇࣛࢵࢡࢫ࡜ࡋࡓ⮬ᕫࣇࣛࢵࢡࢫἲ࡛ La2Zr2O7 ࢆฟⓎཎᩱ࡜ࡋࡓሙྜࠊLLZO ࡢ⤖ᬗ໬ᗘࢆ 500Υࡲ࡛పୗ࡛ࡁࡿࡇ࡜ࡀሗ࿌ࡉࢀ࡚࠸ࡿࠋࡇࡢ⮬ᕫࣇࣛࢵࢡࢫἲࢆᛂ⏝ࡋ࡚ࠊᾮ┦࢚ࣆࢱ࢟ࢩ࣮(LPE)ἲ࡜ࡍࡿࡇ࡜࡛኱Ẽᅽୗࠊẚ㍑ⓗప࡛ࡢ࢚ࣆࢱ࢟ࢩࣕࣝ

ⷧ⭷ࡢస〇ࡀᮇᚅ࡛ࡁࡿࠋᅛయ㟁ゎ㉁ࡢⷧ⭷໬ࡀ࡛ࡁࢀࡤࠊ㟁ụࡢప᢬ᢠ໬ࡀྍ⬟࡜࡞ࡾࠊ㟁ụᛶ⬟ࡢྥୖࡀぢ㎸ࡲࢀࡿࠋᚑ᮶ࡢ࢚ࣆࢱ࢟ࢩࣕࣝⷧ⭷ࡢሗ࿌ࡣ PLD ἲ࡟ࡼࡿࡶࡢ࡛࠶ࡿࡀࠊ700Υ⛬ᗘࡢ⤖ᬗ໬ᗘࢆᚲせ࡜ࡋࠊࡲࡓࢥࢫࢺ㠃࡛ࡶᕤᴗⓗ࡞ᐇ⏝໬࡟ࡣ୙ྥࡁ࡛࠶ࡿࠋࡲࡓሗ࿌ࡉࢀ࡚࠸ࡿ࢖࢜ࣥఏᑟ⋡ࡶపࡃࠊ┿✵ࣉࣟࢭࢫࢆཎᅉ࡜ࡍ
ࡿ Li Ḟᦆࡀᠱᛕࡉࢀࡿࠋࡇࢀ࡟ᑐࡋࠊᮏ◊✲ࡀᥦ᱌ࡍࡿ LPE ἲࡣࠊẚ㍑ⓗప ࠿ࡘ኱Ẽ୰࡛㐠⏝ྍ⬟࡞⡆౽࡞ᡭἲ࡛࠶ࡿࡓࡵࠊపࢥࢫࢺ࡛㧗࠸࢖࢜ࣥఏᑟ⋡ࢆᣢࡘ࢚ࣆࢱ࢟
ࢩࣕࣝⷧ⭷ࡢస〇ࡀᮇᚅ࡛ࡁࡿࠋᮏ◊✲࡛ࡣࠊⷧ⭷స〇ࡢ㊊᥃࠿ࡾ࡜ࡋ࡚ࠊLiOH ࢆࣇࣛࢵࢡࢫ࡜ࡋࡓ⮬ᕫࣇࣛࢵࢡࢫἲࢆ⏝࠸࡚ࠊࡇࢀࡲ࡛࡟ሗ࿌ࡉࢀ࡚࠸࡞࠸ Ta ⨨᥮ LLZOࡢ༢⤖ᬗ⫱ᡂࢆ┠ⓗ࡜ࡋࡓࠋ㸰㸬◊✲ෆᐜ࡜ᡂᯝ ⮬ᕫࣇࣛࢵࢡࢫἲ࡟ࡼࡾẚ㍑ⓗప࡛ Li6.5La3Zr1.5Ta0.5O12 (LLZTO)ࡢ༢⤖ᬗࢆస〇ࡍࡿࡓࡵ࡟ࠊࡲࡎࠊ⁐㉁࡜ࡋ࡚ La-O-Zr(Ta)ࡢ⤖ྜࢆᣢࡘ໬ྜ≀⢊ᮎࢆྜᡂࡋࡓࠋLa2O3ࠊ
ZrO2ࠊTa2O5 ΰྜ⢊ᮎࢆ㐟࣮࣑࡛ᫍ࣎ࣝࣝ⢊○ࡋࠊᅛ┦཯ᛂἲ࡟ࡼࡾస〇ࡋࡓࠋᚓࡽࢀ

138

ࡓ໬ྜ≀ࡣ X ⥺ᅇᢡ(XRD)࡟ࡼࡾ⺯▼ᵓ㐀ࢆᣢࡘࡇ࡜ࡀ᫂ࡽ࠿࡜࡞ࡗࡓࠋࡍ࡞ࢃࡕ௙㎸ࡳ⤌ᡂ࠿ࡽࠊ(La0.6Zr0.3Ta0.1)O1.75 ࡛⾲ࡉࢀࡿ໬ྜ≀ࡀᚓࡽࢀࡓ࡜⪃࠼ࡽࢀࡿ (௨ୗࠊLaZTO)ࠋ
ḟ࡟ࠊᚓࡽࢀࡓ LaZTO ⢊ᮎ࡜ LiOH࣭H2O ⢊ᮎࢆࣔࣝẚࡀ Li / La = 15.5 ࡟࡞ࡿࡼ࠺࡟࢔࣑ࣝ
ࢼࡿࡘࡰෆ࡟タ⨨ࡋࡓࠋࡇࡇ࡛ LaZTO ⢊ᮎࢆඛ࡟タ⨨ࡋࠊࡑࡢୖ࡟ LiOH࣭H2O ⢊ᮎࢆ஌ࡏࡿࡇ
࡜࡛ࠊ࢔࣑ࣝࢼࡿࡘࡰ࡜ࣇࣛࢵࢡࢫ࡜ࡢ⼥╔ࢆ㜵Ṇࡋࡓࠋࡇࢀࢆ኱Ẽ㞺ᅖẼࡢ࣐ࢵࣇࣝ⅔࡟࠾

Fig. 1: XRD pattern of LLZTO grown࠸࡚ 10 ႏ/min ࡛᪼ ࡋࠊ
500 ႏ ࡛ 10 ᫬㛫ಖᣢࠊ by self-flux growth method.
ࡑࡢᚋᐊ ࡲ࡛⮬↛෭༷ࡋࡓࠋᚓࡽࢀࡓ⤖ᬗࡣࣇࣛࢵࢡࢫ࡜ศ㞳ࡏࡎ࡟⢊○ࡋࠊX ⥺ᅇᢡ(XRD)࡛ホ౯ࡋࡓࠋࡑࡢ⤖ᯝࢆ Fig. 1 ࡟♧ࡍࠋࡍ࡭࡚ࡢ
ࣆ࣮ࢡࡣ LLZTO ┦࡜୍⮴ࡋࠊ⟬ฟࡉࢀࡓ᱁Ꮚᐃ
ᩘࡣ 12.94 Å ࡛࠶ࡾࠊᩥ⊩್(12.93 Å) ࡜ẚ㍑ⓗࡼࡃ୍⮴ࡋ࡚࠸ࡓࠋFig. 2 ࡟ᚓࡽࢀࡓ LLZTO ⢏Ꮚࡢ SEM ീࢆ♧ࡍࠋ⢏ᚄࡣ⣙ 3 ȝm ࡛࠶ࡾࠊ{110}㠃ࡔ࡜⪃࠼ࡽࢀࡿࣇ࢓ࢭࢵࢺ㠃࡛ᅖࡲࢀࡓ⳻ᙧ
༑஧㠃య࡜࡞ࡗ࡚࠸ࡿࠋࡉࡽ࡟ࠊ࢚ࢿࣝࢠ࣮ศ
ᩓᆺ X ⥺ศᯒ(EDX)࣐ࢵࣆࣥࢢ࠿ࡽᵓᡂඖ⣲ࡀᆒ୍࡟ศᕸࡋ࡚ࡿࡇ࡜ࡶ☜ㄆ࡛ࡁࡓࠋ௨ୖࡢࡇ

Fig. 2: SEM image of obtained LLZTO
single crystal.

࡜࠿ࡽࠊ௙㎸ࡳ⤌ᡂ㏻ࡾࡢ LLZTO ༢⤖ᬗࡢస〇࡟ᡂຌࡋࡓ࡜⪃࠼ࡽࢀࡿࠋ ௒ᅇᚓࡽࢀࡓ༢⤖ᬗࡢᡂ㛗ᶵᵓ࡟ࡘ࠸࡚ㄪᰝࡋࡓ࡜ࡇࢁࠊ10 ᫬㛫ಖᣢ࡟ࡼࡿ㔜㔞ῶᑡࡣぢࡽࢀࡎࠊࡲࡓࠊ10 ᫬㛫ಖᣢᚋࡢᚎ෭࡟ࡼࡗ࡚ࡶ⤖ᬗ⢏ᚄࡢኚ໬ࡣぢࡽࢀ࡞࠿ࡗ
ࡓࠋࡍ࡞ࢃࡕࠊLi ᥹Ⓨࡸ෭༷࡟ࡼࡿ㐣㣬࿴ᗘኚ໬࡛ࡣ࡞ࡃࠊ࢜ࢫࢺ࣡ࣝࢻ⇍ᡂ࡟ࡼࡿ⤖ᬗᡂ㛗࡛࠶ࡿࡇ࡜ࡀ♧၀ࡉࢀࡓࠋࡑࡇ࡛ࠊᚓࡽࢀࡓ LLZTO ༢⤖ᬗ⢏Ꮚࢆ LaZTO ฟⓎཎᩱ࡜ྠ᫬࡟⏝࠸࡚ྠᵝ࡞ ᗘ᮲௳࡛⮬ᕫࣇࣛࢵࢡࢫἲࢆ⧞ࡾ㏉ࡋࡓ⤖ᯝࠊほࡉࢀࡿ⤖ᬗ⢏ᚄࡢ᫂ࡽ࠿࡞ቑ኱ࡀぢࡽࢀࡓࠋࡇࢀࡣ࠶ࡽ࠿ࡌࡵ௙㎸ࢇࡔ✀⤖ᬗࢆᘬࡁ⥅࠸࡛༢⤖ᬗࡀᡂ㛗ࡋࡓࡇ࡜ࢆ♧၀ࡋ࡚࠸ࡿࠋࡍ࡞ࢃࡕࠊ༢⤖ᬗᇶᯈࢆ✀⤖ᬗ࡜ࡋ࡚⏝࠸࡚ࡶࠊ⤖ᬗ᪉఩ࢆᘬࡁ⥅࠸ࡔ࢚ࣆࢱ࢟ࢩࣕࣝᡂ㛗ࡀᮇᚅ࡛ࡁࡿࠋ௒ᚋࡣࠊ㐺ษ࡞༢⤖ᬗᇶᯈࢆ㑅ᢥࡋ࡚ࠊ௒ᅇࡢ LiOH-LaZTO ⁐ᾮࢆ⏝࠸ࡓ LPE ἲ࡟ࡼࡾࠊLLZTO ࢚ࣆࢱ࢟ࢩࣕࣝⷧ⭷ᡂ㛗࡟ྲྀࡾ⤌ࡴணᐃ࡛࠶ࡿࠋ

࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ཎⴭㄽᩥ㸼
࣭ T. Kawaguchi, K. Sugihara, N. Sakamoto, H. Suzuki, N. Wakiya, “Wide range lattice
parameter control by aliovalent substitution to the rare-earth site in cubic garnet
Li6.75(La1-xSmx)3Zr1.75Ta0.25O12”, J. Ceram. Soc. Jpn. 128 [10] 700-705 (2020).

139ู⣬ᵝᘧ㸰㸫㸰☢໬≉ᛶࢆⓎ⌧ࡍࡿ㑄⛣㔠ᒓࢲ࢖࢝ࣝࢥࢤࢼ࢖ࢻ⭷ࡢḞ㝗࣭⢏⏺࡟㛵ࡍࡿ᩿㠃/ᖹ㠃 TEM ゎᯒ
Plane/cross-sectional TEM analysis on defects and grain boundaries of transition-metal
di-chalcogenide film having magnetization characteristicsⱝᯘᩚ࣭ᮾᕤ኱࣭ᕤᏛ㝔࣭ᩍᤵ᐀⏣ఀ⌮ஓ࣭ᮾᕤ኱࣭ᕤᏛ㝔࣭ຓᩍ஬༑ᔒಙ⾜࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊࣭ᩍᤵ㸯㸬◊✲┠ⓗḟୡ௦ࡢ㉸పᾘ㈝㟁ຊ㧗ᛶ⬟ࢺࣛࣥࢪࢫࢱࡢᐇ⌧࡟ྥࡅ࡚ࠊ஧◲໬ࣔࣜࣈࢹࣥ
(MoS2)࡞࡝ཎᏊᒙࣞ࣋ࣝ㑄⛣㔠ᒓࢲ࢖࢝ࣝࢥࢤࢼ࢖ࢻ(Transition metal di-chalcogenide:
TMDC)⭷ࡢ஧ḟඖ༙ᑟయᮦᩱࡢ◊✲ࡀ㐍ࡵࡽࢀ࡚࠸ࡿࠋࢺࣛࣥࢪࢫࢱ≉ᛶࡢྥୖࡢࡓ
ࡵ࡟ࡣࠊཎᏊ࡛ࣞ࣋ࣝࡢ⭷ᵓ㐀ไᚚ࡜ࢹࣂ࢖ࢫస〇ᢏ⾡ࡢ☜❧ࡀᚲせ࡛࠶ࡾࠊTEM ➼ࢆ⏝࠸ࡓཎᏊࢫࢣ࣮࡛ࣝࡢᮦᩱ≀ᛶ࣭ᵓ㐀ゎᯒࡀồࡵࡽࢀ࡚࠸ࡿࠋ㐣ཤ 4 ᖺ㛫࡟ࡣࠊ
MoS2 ከᒙ⭷ࡢ᩿㠃/ᖹ㠃୧᪉ࡢ TEM ほᐹ࡟ࡼࡾࠊMoS2 ⤖ᬗࡢཎᏊ㓄ิࡢほᐹࡀྍ⬟࡞ࡇ࡜ࢆᐇドࡋࡓࠋ≉࡟ᅔ㞴ࡉࢆక࠺ᖹ㠃 TEM ࡛ࡣࠊ≉Ṧ࡞ࢧࣥࣉࣝసᡂᡭἲࢆ☜❧ࡋࠊᏳᐃⓗ࡟ホ౯ࢆ⾜࠺ࡇ࡜ࡀ࡛ࡁࡿᇶ♏ࢆ⠏࠸ࡓࠋࡑࡇ࡛ᮏ◊✲ࡢ┠ⓗࡣࠊࡑࡢ TEM ホ౯ᡭἲࢆࡉࡽ࡟ᨵၿࡋ࡚ࠊ☢໬≉ᛶࢆⓎ⌧ࡍࡿ TMDC ⭷ࡢḞ㝗ࡸ⢏⏺ࡢ᩿㠃/ᖹ㠃 TEM
ゎᯒ࡟ࡼࡾࠊᵓ㐀ホ౯࣭≀ᛶホ౯ᢏ⾡ࢆ㛤Ⓨࡋࠊୖグ FET ࡸࢫࣆࣥຠᯝࢹࣂ࢖ࢫ㛤Ⓨ
ࢆຍ㏿ࡍࡿࡇ࡜ࢆ⥅⥆┠ᶆ࡜ࡍࡿࠋࡇࢀࡣࠊIoT-edge ࢹࣂ࢖ࢫࡢ㠉᪂ⓗస〇ᢏ⾡࡟ࡼࡾࠊ≉࡟〇㐀᫬ࡢ┬࢚ࢿࣝࢠ࣮໬࡟ᐤ୚ࡍࡿ࡜⪃࠼ࡽࢀࡿࠋࡲࡓࠊᐇ⌧ࡉࢀࡿࢹࣂ࢖ࢫࡢᛶ
⬟࡟ࡼࡗ࡚ࡣࢩࣜࢥࣥࢆ෽㥙ࡍࡿྍ⬟ᛶࡀ࠶ࡾࠊ㠉᪂ⓗ࡞పᾘ㈝㟁ຊ໬࡟ࡼࡿ┬࢚ࢿࣝࢠ࣮ࢆᐇ⌧࡛ࡁࡿྍ⬟ᛶࡀ࠶ࡿࠋ

㸰㸬◊✲ෆᐜ࡜ᡂᯝ
୍ᒙ࠶ࡓࡾ 1 nm ཌ௨ୗࡢ 2D ᒙ≧༙ᑟయᮦᩱ࡛࠶ࡿ TMDC ⭷ࡢ୰࡛ࡶࠊMoS2 ⭷ࡣ⤖ᬗḞ㝗ࡸ⢏⏺࡟☢໬≉ᛶࢆ᭷ࡍࡿࡇ࡜ࡀศ࠿ࡗ࡚࠸࡚ࠊ≉࡟ Physical-vapor deposition(PVD)ἲ࡜ࡑࢀ࡟⥆ࡃ⇕ฎ⌮࡟ࡼࡾ[1-6]ࠊ☢໬≉ᛶࢆไᚚ࡛ࡁࡿࡇ࡜ࡀศ࠿ࡗ࡚࠸ࡿ
[7]ࠋ
ࡑࡇ࡛ᮏ◊✲࡛ࡣࠊTMDC ⭷ࡢ☢໬≉ᛶไᚚࡢ࣓࢝ࢽࢬ࣒ࡢゎ᫂࡟ྥࡅ࡚ࠊMoS2 ⭷ࡢཎᏊ࡛ࣞ࣋ࣝࡢ᩿㠃/ᖹ㠃 TEM ゎᯒ࡟࠾ࡅࡿᵓ㐀࣭≀ᛶゎᯒᢏ⾡ࡢ☜❧ࢆ┠ᣦࡋ࡚ࠊࢧࣈࣔࣀࣞ࢖࣮ࣖ㡿ᇦࢆྵࡴᡂ㛗ึᮇẁ㝵ࡢ᩿㠃/ᖹ㠃 TEM ホ౯ࢆ⾜࡞ࡗࡓ[8]ࠋᅗ 1
ࡢ㏻ࡾࠊ100%⿕そ⋡ࢆ≺ࡗ࡚ 400°C ࡢ PVD ࡛ᡂ⭷ࡋࡓ MoS2 ⭷࡟ࡘ࠸࡚ࠊ20-30 nm ⛬ᗘࡢẚ㍑ⓗᑠࡉ࠸⤖ᬗ⢏ᚄࢆᙧᡂ࡛ࡁࡿࡇ࡜ࡀศ࠿ࡗࡓࠋࡇࢀࡣࠊChemical-vapor
deposition (CVD)࡛⏝࠸ࡽࢀࡿ 800oC ⛬ᗘ࡟ẚ࡭࡚᰾ᙧᡂᐦᗘࡀపࡃ࡞ࡿ࡜ᛮࢃࢀࡿ࡟
ࡶ࠿࠿ࢃࡽࡎࠊSiO2/Si ᇶᯈ࠿ࡽ༳ຍࡉࢀࡿṧ␃ᘬࡗᙇࡾᛂຊ࡟ࡼࡿ࡜⪃࠼ࡽࢀࡿࠋ௒


140



ᚋࠊ⤖ᬗḞ㝗ࡸ⢏⏺ࢆ᩿㠃/ᖹ㠃 TEM ほᐹࡍࡿࡇ࡜࡟ࡼࡾࠊᡂ⭷ᚋ⇕ฎ⌮࡟ࡼࡾไᚚ࡛
ࡁࡿ☢໬≉ᛶࡢⓎ⌧࣓࢝ࢽࢬ࣒ࢆ᫂ࡽ࠿࡟ࡍࡿࡇ࡜ࢆ┠ᣦࡍࠋࡉࡽ࡟ WS2 ࡸ ZrS2 ⭷࡟ࡶᒎ㛤ࡋ[9,10]ࠊ☢໬≉ᛶࢆྥୖ࡛ࡁࡿ⣔ࢆホ౯ࡍࡿணᐃ࡛࠶ࡿࠋ(a)పಸ⋡ീ(b)୰ಸ⋡ീ(c)㧗ಸ⋡ീᅗ 1㸸100%⿕そ⋡ࢆ≺ࡗ࡚ 400oC ࡢ PVD ࡛ᡂ⭷ࡋࡓཎᏊᒙ≧ MoS2 ⭷ࡢ⾲㠃㏱㐣ᆺ㟁Ꮚ㢧ᚤ㙾ീ[11]㸬

࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ࣭ ⱝᯘᩚࠕᮾிᕤᴗ኱Ꮫ ᕤᏛ㝔 㟁Ẽ㟁Ꮚ⣔ ⱝᯘᩚ(ࡦ࡜ࡋ)◊✲ᐊ࢚ࠖࣞࢡࢺࣟ
ࢽࢡࢫᐇ⿦Ꮫ఍ㄅ 24 ᕳ(2021) 1 ྕ㸬
࣭ Ryo Ono, Iriya Muneta, Nobuyuki Ikarashi, Hitoshi Wakabayashi, et al., to be submitted to
JSAP/SSDM 2021.
㸺⏘ᴗ㈈⏘ᶒ㸼

࣭࡞ࡋ


ཧ⪃ᩥ⊩
[1]

Shinya Imai, et al., 2021 Jpn. J. Appl. Phys., 60, SBBH10.

[2]

Masaya Hamada, et al., IEEE/J-EDS, 7, 1258, 2019.

[3]

Takuya Hamada, et al., IEEE/J-EDS, 2021, DOI:10.1109/JEDS.2021.3050801.

[4]

Satoshi Igarashi, et al., 2021 Jpn. J. Appl. Phys. 60 SBBH04.

[5]

Haruki Tanigawa, et al., JSAP/JJAP, 59, SMMC01, 2020.

[6]

Kentaro Matsuura, et al., JSAP/JJAP, 59, 080906, 2020.

[7]

Takanori Shirokura, et al., APL, Vol. 115, p. 192404, 2019.

[8]

Ryo Ono, et al., to be submitted to JSAP/SSDM 2021.

[9]

Masaya Hamada, et al., 2020 Jpn. J. Appl. Phys. 59 105501.

[10] Takuya Hamada, et al., IEEE/EDTM 2021, WTHPE-018, to be presented.

141ู⣬ᵝᘧ㸰㸫㸰

పᾘ㈝㟁ຊࢩࢼࣉࢫ⣲Ꮚ⏝࢔ࣔࣝࣇ࢓ࢫ࣓ࣔࣜࢫࢱᮦᩱ࡟࠾ࡅࡿ
㓟⣲✵Ꮝᣲືࡢ TEM ゎᯒ
TEM analysis of oxygen vacancy behaviors in amorphous memristive materials
for low power consumption synaptic devices㓇஭ ᮁ࣭኱㜰኱Ꮫ࣭኱Ꮫ㝔ᇶ♏ᕤᏛ◊✲⛉࣭ᩍᤵ⸨ᖹဴஓ࣭኱㜰኱Ꮫ࣭኱Ꮫ㝔ᇶ♏ᕤᏛ◊✲⛉࣭෸ᩍᤵᯘ ౡ௓࣭኱㜰኱Ꮫ࣭኱Ꮫ㝔ᇶ♏ᕤᏛ◊✲⛉࣭ຓᩍ㇂ཱྀዉ✑࣭኱㜰኱Ꮫ࣭኱Ꮫ㝔ᇶ♏ᕤᏛ◊✲⛉࣭༤ኈ๓ᮇㄢ⛬ụෆኴᚿ࣭኱㜰኱Ꮫ࣭኱Ꮫ㝔ᇶ♏ᕤᏛ◊✲⛉࣭༤ኈ๓ᮇㄢ⛬஬༑ᔒಙ⾜࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱࢩࢫࢸ࣒◊✲ᡤ࣭ᩍᤵ㸯㸬◊✲┠ⓗ  ேᕤ▱⬟㸦AI㸧࡟௦⾲ࡉࢀࡿ㧗ᗘ࡞ࣃࢱ࣮ࣥㄆ㆑ࡸᅇᖐⓗᛮ⪃➼ࢆᐇ⌧ࡍࡿࢽ࣮ࣗ
ࣟࣔࣝࣇ࢕ࢵࢡࢥࣥࣆ࣮ࣗࢱࡣ㸪ḟୡ௦᝟ሗฎ⌮࡟୙ྍḞ࡛࠶ࡿࠋᮏ◊✲࡛ࡣ㸪㉸పᾘ㈝㟁ຊࢽ࣮ࣗࣟࣔࣝࣇ࢕ࢵࢡࢹࣂ࢖ࢫ࡬ࡢᛂ⏝ࡀᮇᚅࡉࢀࡿ࢔ࣔࣝࣇ࢓ࢫ࡞ࡽࡧ
࡟༢⤖ᬗ࣓ࣔࣜࢫࢱᮦᩱ࠿ࡽ࡞ࡿࢩࢼࣉࢫ⣲Ꮚࢆ㛤Ⓨࡋ㸪᢬ᢠࢫ࢖ࢵࢳࣥࢢ➼ࡢࢹࣂ࢖ࢫືసୗ࡛⏕ࡎࡿ㟁⏺ㄏ㉳ᒁᡤ㓟໬࣭㑏ඖᶵᵓࢆཎᏊᵓ㐀࣭㟁Ꮚ≧ែ㑄⛣ࡢほⅬ࠿ࡽゎ᫂ࡍࡿࠋ㧗ศゎ⬟㏱㐣㟁Ꮚ㢧ᚤ㙾㸦TEM㸧ほᐹࢆ୺య࡟㸪㓟⣲✵Ꮝศᕸࡢࢺ࣏ࣟ
ࢪ࣮ኚ໬ࡢࢲ࢖ࢼ࣑ࢡࢫࢆࢼࣀࢫࢣ࣮࡛ࣝᤊ࠼㸪ࢩࢼࣉࢫᶵ⬟ࡢⓎ⌧࡜పᾘ㈝㟁ຊ໬ࡢࡓࡵࡢ⣲Ꮚタィᣦ㔪ࢆᥗࡴࠋ㸰㸬◊✲ෆᐜ࡜ᡂᯝ
ᮏ◊✲࡟࠾࠸࡚ࡣ㸪࢔ࣔࣝࣇ࢓ࢫ࡞ࡽࡧ࡟༢⤖ᬗ≧ែ࡛㟁⏺ㄏ㉳ᒁᡤ㓟໬࣭㑏ඖ࡟ࡼࡿ᢬ᢠ㑄⛣≉ᛶࢆ♧ࡍ㓟໬࣒࢞ࣜ࢘࡞ࡽࡧ࡟ࣝࢳࣝᆺ㓟໬ࢳࢱࢽ࣒࢘㸦TiO2-x㸧࡟╔┠ࡍࡿࠋ௒ᅇࡣᚋ⪅ࡢࣝࢳࣝᆺ TiO2-x ༢⤖ᬗ࢚ࣆࢱ࢟ࢩࣕࣝⷧ⭷ࢆ࣓ࣔࣜࢫࢱᮦᩱ
࡜ࡍࡿ㸪ࡑࡢሙ TEM ほᐹ⏝ᚤ⣽࣓ࣔࣜࢫࢱ⣲Ꮚࡢస〇࡜ྠ⣲Ꮚࡢ㥑ື≧ែ࡟࠾ࡅࡿ
TEM ほᐹࢆ⾜ࡗࡓࠋࣃࣝࢫ࣮ࣞࢨ࣮⵨╔ἲࢆ⏝࠸㸪TiO2(100)⤯⦕ᛶᇶᯈୖ࡟㑏ඖ≧ែ࡟࠶ࡿ TiO2-x ⷧ⭷ࢆ࢚ࣆࢱ࢟ࢩࣕࣝᡂ㛗ࡉࡏࡓࠋྠⷧ⭷⾲㠃࡟ᑐࡋ࡚㸪㟁Ꮚ⥺ࣜࢯࢢࣛࣇ࢕࣮⿦⨨࡞ࡽࡧ࡟ࢫࣃࢵࢱࣜࣥࢢ⿦⨨ࢆ⏝࠸࡚㸪㟁ᴟ㛫㊥㞳ࡀ⣙ 1 Pm ࡢᖹ㠃ᆺ Pt 㟁ᴟࢆస〇ࡋ㸪2 ➃Ꮚ࣓ࣔࣜࢫࢱ⣲Ꮚࢆస〇ࡋࡓࠋࡉࡽ࡟ྠ⣲Ꮚࢆ㞟᮰࢖࢜ࣥࣅ
࣮࣒⿦⨨࡟ࡼࡗ࡚ᖹ㠃 TEM ほᐹࡀྍ⬟࡞ⷧ∦ヨᩱ࡟ຍᕤࡋ㸪ᩘPm ࢫࢣ࣮ࣝࡢ 4 ➃Ꮚᚤ⣽㟁ᴟࢆഛ࠼ࡿ TEM ࢢࣜࢵࢻୖ࡟⿦╔ࡋࡓࠋྠ TEM ヨᩱࢆእ㒊࠿ࡽࡢ㟁ᅽ༳ຍࡀྍ⬟࡞ TEM ヨᩱ࣍ࣝࢲ࣮࡟タ⨨࣭㓄⥺ࡋ㸪⣲Ꮚ࡬ࡢ㟁ᅽ༳ຍ࣭㟁ὶィ࡜ྠ᫬࡟ヨᩱ୰࡛⏕ࡎࡿᚤ⣽ᵓ㐀ࡢኚ໬ࢆ TEM ほᐹࡋࡓࠋᅗ 1 ࡣ TEM ヨᩱ࣍ࣝࢲ࣮࡟⿦
╔ࡋࡓࢧࣥࣉࣝࡢ෗┿࡜ྠヨᩱࡢ TEM ീ࡛࠶ࡿࠋTEM ീ࡟ࡣ TiO2-x ࣓ࣔࣜࢫࢱ⣲Ꮚࡢ Pt 㟁ᴟ࡞ࡽࡧ࡟ TiO2-x ⷧ⭷ࡀほᐹࡉࢀࡿࠋ

142

ᅗ 2 ࡣ㟁ᅽ༳ຍ➃Ꮚ࡟ṇ㟁ᅽࢆ༳ຍࡋࡓ㝿ࡢ୍㐃ࡢ TEM ീ࡛࠶ࡾ㸪㟁ᅽ༳ຍ࡟క࠸㸪GND ➃Ꮚ㏆ഐ࡟ TiO2-x ⷧ⭷୰ࡢ㓟⣲✵Ꮝࡀ㞟✚ࡋࡓࡇ࡜࡟ࡼࡾ㸪๧᩿㠃ࡀᙧᡂࡉࢀࡿᵝᏊࡢほᐹ⤖ᯝ࡛࠶ࡿࠋ㟁ᅽ༳ຍ࠿ࡽ 317 ⛊㸪
455 ⛊㸦ᅗ 2(b)㸪

ᅗ 1 ヨᩱ⿦╔ᚋࡢ TEM ヨᩱ࣍ࣝࢲ࣮㸦ᕥ㸧࡜ TEM ീ㸦ྑ㸧(c)㸧࡛▮༳ࡢࡼ࠺࡟⦤ᶍᵝࡢᬯࢥࣥࢺࣛࢫࢺࡀほᐹࡉࢀ㸪ࡑࡢᚋ㸪525 ⛊࡛๧᩿㠃ᙧᡂࡢ┤๓࡟ᬯࢥࣥࢺࣛࢫࢺࡢจ㞟ࡀ⃰ࡃᗈࡀࡾ㸦ᅗ 2(d)㸧㸪๧᩿㠃ࡀᙧᡂࡉࢀࡓ㸦ᅗ 2(e)㸧
ࠋࡇࡢࡼ࠺࡟๧᩿㠃ࡣᗄࡘ࠿ࡢẁ㝵ࢆ⤒࡚ᙧᡂࡉࢀࡿࡇ࡜ࡀᮏほᐹ࡛ึࡵ࡚᫂ࡽ࠿࡟࡞ࡗࡓࠋࡉࡽ࡟㸪TEM ほᐹ࡜ྠ᫬࡟ྲྀᚓࡋࡓ㟁Ẽ≉ᛶ㸦ᅗ 3㸧࡛ࡣ⣲Ꮚࡢప᢬ᢠ໬ࡀほ ࡉࢀ࡚࠾ࡾ㸪ᑟ㟁㡿ᇦ࡛࠶ࡿ๧᩿㠃ࡢᙧᡂ࡜ࡢᩚྜᛶࢆ☜ㄆࡍࡿࡇ࡜ࡀ࡛ࡁࡓࠋ
0[s] , 0.0009[V] ,2.63[ђA]
GND

317[s] , 0.75[V] ,2.02[ђA]
GND

(a)

455[s] , 0.488[V] ,1.02[ђA]
GND

(b)

(c)

[011] [001]500 nm

+V

[010]

[100]

500 nm+V

525[s] , 0.675[V] ,1.77[mA]

(d)

GND

+V

500 nm600[s] , 0.0009[V] ,3.31[ђA]
GND

(e)

031

500 nm

500 nm+V+Vᅗ 2 ๧᩿㠃ᙧᡂ㐣⛬ࡢࡑࡢሙ TEM ほᐹീᅗ 3 ๧᩿㠃ᙧᡂ᫬ࡢప᢬ᢠ໬ࢆ♧ࡍ⣲Ꮚࡢ㟁Ẽ≉ᛶ࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ᅜෆ఍㆟㸼࣭ ㇂ཱྀዉ✑㸪⸨ᖹဴஓ㸪ୖ⏥Ᏺ἞㸪ᯘౡ௓㸪㓇஭ᮁ㸪ࣝࢳࣝᆺ TiO2-x ᖹ㠃ᆺ࣓ࣔࣜࢫࢱ
⣲Ꮚ࡟࠾ࡅࡿ᢬ᢠኚ໬㡿ᇦࡢࡑࡢሙ TEM ほᐹ㸪ᛂ⏝≀⌮Ꮫ఍㛵すᨭ㒊 2020 ᖺᗘ➨ 1
ᅇ+➨ 2 ᅇྜྠㅮ₇఍㸪࢜ࣥࣛ࢖ࣥ㛤ദ㸪2021 ᖺ 1 ᭶ 27 ᪥.

143ู⣬ᵝᘧ㸰㸫㸰ᨺᑕ⥺࠿ࡽ㟁Ẽ࡬ࡢ㧗ຠ⋡࡞┤᥋࢚ࢿࣝࢠ࣮ኚ᥮ࢆྍ⬟࡟ࡍࡿ᭷ᶵ༙ᑟయ/CNT ⷧ⭷ࡢ㛤Ⓨ
Development of organic semiconductor/CNT thin film for direct energy conversion
from radiation to electricity with high efficiency▼஭⪽࣭ᮾி㟁ᶵ኱Ꮫ࣭⌮ᕤᏛ㒊࣭ຓᩍ℈⏣Ẏ࣭ᨺᑕ⥺་Ꮫ⥲ྜ◊✲ᡤ࣭≀⌮ᕤᏛ㒊㟼㟁ຍ㏿ჾ㐠㌿ᐊ࣭ᐊ㛗㕥ᮌ្࣭ᮾி㟁ᶵ኱Ꮫ኱Ꮫ㝔࣭⌮ᕤᏛ◊✲⛉࣭ಟኈㄢ⛬㸰ᖺ኱㔝㞝㧗࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶࢚ࣞࢡࢺࣟࢽࢡࢫ㞟✚◊✲ࢭࣥࢱ࣮࣭ᩍᤵ
㸯㸬◊✲┠ⓗ ࡇࢀࡲ࡛㸪ᨺᑕᛶᗫᲠ≀ࡣ࠸࠿࡟Ᏻ඲࡟㛗ᮇ㛫ಖᏑཬࡧ⟶⌮ࡍࡿ࠿ࡀ㔜どࡉࢀ࡚ࡁࡓ㸬ᮏ◊✲࡛ࡣ㸪ࡇ࠺ࡋࡓᨺᑕᛶᗫᲠ≀ࡀฟࡋ⥆ࡅࡿᨺᑕ⥺ࢆ✚ᴟⓗ࡟෌฼⏝ࡍࡿࡓࡵࡢⓎ㟁ࢹࣂ࢖ࢫࡢ㛤Ⓨࢆ┠ᣦࡋࡓ㸬ึᖺᗘࡣ㸪ࣉࣛࢫࢳࢵࢡࡢ⾲㠃࡟స〇ࡋࡓ CNT ⷧ⭷㟁ᴟࢆ⏝࠸࡚㸪X ⥺࡟ࡼࡿㄏ㉳㟁ὶࡀ᳨ฟ࡛ࡁࡿࡇ࡜ࢆ☜ㄆࡋࡓ㸬ᮏᖺᗘࡣ࢚ࢿࣝࢠ࣮ࡀ
␗࡞ࡿ㟁☢Ἴ࡜ࡋ࡚ᨺᑕ⥺ࡢ௦ࢃࡾ࡟ UV ࢆ౑⏝ࡋ㸪↷ᑕ࡟ᑐࡍࡿⓎ⏕㟁ὶࡢホ౯࡜㧗࠸Ⓨ㟁ຠ⋡ࢆᚓࡿࡓࡵ࡟ᚲせ࡞ࢹࣂ࢖ࢫᵓ㐀ࡢㄪᰝࢆ┠ⓗ࡜ࡋࡓ㸬㸰㸬◊✲ෆᐜ࡜ᡂᯝ ᨺᑕ⥺᳨ฟࢹࣂ࢖ࢫ࡜ࡋ࡚㸪D

Eࣉࣛࢫࢳࢵࢡ࡛࠶ࡿ PET ᇶᯈࡢ୧㠃࡟㸪ᅗ㸯㸦㹟㸧࡟♧ࡋࡓᵓ㐀ࡢ CNT ⷧ⭷㟁ᴟࢆస〇ࡋࡓ㸬CNT ⷧ⭷㟁ᴟࡣ࢝ࣉࢺ
ࣥࢸ࣮ࣉ࡛స〇ࡋࡓ࣐ࢫࢡࢆᅗ㸯 ࢹࣂ࢖ࢫᵓ㐀㸬(a) 㟁ᴟᙧ≧, (b)ᐃᅇ㊰㸬౑⏝ࡋ㸪༢ᒙ CNT ࡢ IPA ศᩓ⁐ᾮࢆࢫࣉ࣮ࣞࢥ࣮ࢺࡍࡿ
ࡇ࡜࡛ࣃࢱ࣮ࢽࣥࢢࡋࡓ㸬CNT ⷧ⭷ࡣ㸪ᅗ㸰࡟♧ࡋࡓ㏱㐣
⋡࡜ࢩ࣮ࢺ᢬ᢠ࡜ࡢ㛵ಀ࠿ࡽ㸪㏱㐣⋡ࡀ 70 %⛬ᗘ࡟࡞ࡿࡼ
࠺࡟ᙧᡂࡍࡿࡇ࡜࡛㸪㏱᫂ᛶ࡜ఏᑟᛶࢆಖࡘࡼ࠺࡟ࡋࡓ㸬ࡲࡓ㸪ẚ㍑ࡢࡓࡵ࡟ࢫࣃࢵࢱ⵨╔࡛ Au ⷧ⭷㟁ᴟࢆస〇ࡋࡓࢹࣂ࢖ࢫࡶ‽ഛࡋࡓ㸬ᮏ◊✲࡛ࡣ㸪PET ᇶᯈࡢෆ㒊ࢆᆶ┤࡟ὶࢀࡿ㟁ὶࡢࡳࢆ᳨ฟࡍࡿࡓࡵ㸪࣮࢞ࢻ㟁ᴟ࡬ࡢ㓄⥺ࢆᅗ㸯㸦㹠㸧ࡢࡼ࠺࡟ࡍࡿࡇ࡜࡛㸪PET ᇶᯈࡢഃ㠃࠿ࡽᅇࡾ㎸ࡴ㟁ὶࡀ㟁ὶィ࡟ὶࢀ㎸ࡴࡇ࡜ࢆ㜵࠸ࡔ㸬ࡲࡓ㸪ᮏᖺᗘࡣᨺᑕ⥺↷ᑕᐇ㦂ࡀ࡛ࡁ࡞࠿ࡗࡓࡓࡵ㸪௦ᅗ㸰 CNT ⷧ⭷ࡢ㏱㐣⋡࡜ࢩ࣮ࢺ᢬ᢠࡢ㛵ಀ㸬᭰ᡭẁ࡜ࡋ࡚࢚ࢿࣝࢠ࣮ࡣ␗࡞ࡿࡀ㸪㹖⥺࡜ྠࡌ㟁☢Ἴ࡛㟁ὶບ㉳ᶵᵓࡶྠࡌ࡛࠶ࡿ
UV ࢆ฼⏝ࡋ࡚↷ᑕᐇ㦂ࢆ⾜ࡗࡓ㸬ࢡࣛ࢖࢜ࢫࢱࢵࢺࢆ౑⏝ࡋ┿✵୰㸦§ 10-4 Pa㸧࡟タ⨨ࡋࡓࢹࣂ࢖ࢫ࡟ᑐࡋ࡚㸪173㹼393 K ࡢᗘ⠊ᅖ࡛ UV ࢆ↷ᑕࡋ㟁Ẽᛂ⟅ࢆ

144

ᐃࡋࡓ㸬

↷ᑕࡋࡓ UV ࡢἼ㛗ࡣ 365 nm㸪ᙉᗘࡣ 170 PW/cm2 ࡛࠶ࡗࡓ㸬 ᅗ㸱࡟ࡣ㸪ࡑࢀࡒࢀ CNT ⷧ⭷㟁ᴟ࡜ Au ⷧ⭷㟁ᴟࢆ⏝࠸ࡓࢹࣂ࢖ࢫࡢྛ

ᗘ࡟࠾ࡅࡿࢮࣟࣂ࢖࢔ࢫ≧ែ࡛ࡢ㟁Ẽᛂ⟅ࢆ♧ࡋࡓ㸬UV ↷ᑕࢆ㛤ጞࡍࡿ࡜㟁ὶࡣ࣐࢖ࢼࢫ᪉ྥ
࡟ὶࢀጞࡵ㸪ࡸࡀ࡚᭱኱࡜࡞ࡗࡓᚋ࡟⦆ࡸ࠿࡟ῶ⾶ࡋ୍࡚ᐃ್࡟㏆࡙࠸ࡓ㸬ࡲࡓ㸪UV↷ᑕࢆ೵Ṇࡍࡿ࡜㟁ὶࡣᚎࠎ࡟ὶࢀ࡞ࡃ࡞ࡗࡓ㸬᳨ฟ㟁ὶࡢᴟᛶ࠿ࡽ㸪UV ࢆ྾཰ࡋࡓ
↷ᑕഃࡢ㟁ᴟ࠿ࡽࡣ࣮࣍ࣝࡀ PET ୰࡬࢟ࣕࣜ࢔࡜ࡋ࡚ὀධࡉࢀ㸪⛣ືᗘࡢప࠸ PET ෆ㒊࡛✵㛫㟁Ⲵࢆᙧᡂࡋ࡚㟁ὶࢆไ㝈ࡋࡓ࡜⪃࠼ࡽࢀࡿ㸬࣮࣍ࣝ࡟ᑐࡍࡿࢩࣙࢵࢺ࣮࢟㞀ቨࡢ㧗ࡉࡣ㸪
PET ࡢ HOMO ‽఩࡟ᑐࡍࡿ㟁ᴟࡢ௙஦㛵ᩘ࠿ࡽ㸪CNT ⷧ⭷㟁ᴟࡀ 2.65 eV㸪ࡲࡓ Au ⷧ⭷㟁ᴟࡀ 1.88 eV ࡜ணࡉࢀࡓ㸬ࡇࢀ࡟ᑐࡋ࡚㸪ᅗ㸱㸦㹡㸧࡟♧ࡋࡓ᭱኱㟁ὶࡢ࢔ࣞࢽ࢘ࢫࣉࣟࢵࢺࡢഴࡁ࠿ࡽ㸪άᛶ໬࢚ࢿࣝࢠ࣮ࡣ CNT ⷧ⭷㟁ᴟࡀ 27 meV㸪
Au ⷧ⭷㟁ᴟࡀ 50 meV ࡜ 2 ᱆ᑠࡉ࠸್ࡀᚓࡽࢀࡓ㸬ヲ⣽ࡣㄪᰝ୰࡛࠶ࡿࡀ㸪άᛶ໬࢚ࢿࣝࢠ࣮ࡀ㞀ቨࡢ㧗ࡉ࡟ᑐᛂࡍࡿ࡜ࡍࢀࡤ㸪㟁ᴟ࡜ PET ࡢ⏺㠃‽఩ᐦᗘࡀ㧗ࡃ㸪ᤕ⋓ࡉࢀࡓ㟁Ꮚࡀ࢚ࢿࣝࢠ࣮ࣂࣥࢻࢆᘬࡁୖࡆ࡚࠸ࡿࡇ࡜ࡀ⪃࠼ࡽࢀࡿ㸬UV ↷ᑕ࡟ࡼࡿⓎ⏕㟁ὶࡣ㸪CNT ⷧ⭷㟁ᴟࡢ᪉ࡀ Au 㟁ᴟ࡜ẚ㍑ࡋ࡚඲ᗘ㡿ᇦ࡛኱ࡁ࠿ࡗࡓ㸬ࡉࡽ࡟㸪↷ᑕ(c)

ࡋࡓ UV ࡢ㏱㐣⋡ࡶ CNT
ⷧ⭷ࡣ 54.5 %࡛࠶ࡾ㸪Auⷧ⭷ࡢ 4.3 %ࡼࡾࡶ㧗࠿ࡗࡓ㸬௨ୖ࠿ࡽ㸪CNT ⷧ⭷㟁ᴟࢆస〇ࡋࡓ PETࢩ࣮ࢺࡀ㸪㏱᫂ࣇࣞ࢟ࢩࣈ ࣝ࡞㟁☢Ἴ ࠿ࡽ㟁Ẽ࢚ ࢿࣝࢠ࣮࡬ ࡢኚ᥮ࢹࣂ ࢖ࢫ࡜ࡋ࡚ ᭷⏝࡛࠶ࡿࡇ࡜ࢆ☜ㄆ࡛ࡁࡓ㸬ᅗ㸱 ࢮࣟࣂ࢖࢔ࢫ࡛ࡢ UV ↷ᑕ࡟ᑐࡍࡿ㟁ὶᛂ⟅㸬(a) CNT ⷧ⭷㟁ᴟ, (b) Au ⷧ⭷㟁ᴟ, (c) ᭱኱㟁ὶࡢ࢔ࣞࢽ࢘ࢫࣉࣟࢵࢺ㸬࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ᅜ㝿࣭ᅜෆ఍㆟㸼࣭ Satoru Suzuki, Hiroyuki Matsuda, Takahiro Ishikawa, Teruaki Konishi, Tsuyoshi Hamano,
Hiroshi Ajiki, Yutaka Ohno, Toshio Hirao, Satoshi Ishii, Electrical detection of X-ray byusing coplanar CNT thin-film electrodes on PEN substrate㸪➨ 59 ᅇ ࣇ࣮࣭ࣛࣞࣥࢼࣀࢳ
࣮ࣗࣈ࣭ࢢࣛࣇ࢙ࣥ⥲ྜࢩ࣏ࣥࢪ࣒࢘㸪࢜ࣥࣛ࢖ࣥ㛤ദ㸪2020 ᖺ 9 ᭶ 16㹼18 ᪥.
࣭ Satoru Suzuki, Taichi Nakamura, Takahiro Ishikawa, Teruaki Konishi, Tsuyoshi Hamano,
Yutaka Ohno, Hiroshi Ajiki, Toshio Hirao, Satoshi Ishii, Observation of the UV-induced
Photocurrent in PET sheet using CNT thin-film electrodes㸪➨ 60 ᅇ ࣇ࣮࣭ࣛࣞࣥࢼࣀࢳ
࣮ࣗࣈ࣭ࢢࣛࣇ࢙ࣥ⥲ྜࢩ࣏ࣥࢪ࣒࢘㸪࢜ࣥࣛ࢖ࣥ㛤ദ㸪2021 ᖺ 3 ᭶ 1㹼3 ᪥.
࣭୰ᮧኴ୍㸪㕥ᮌ្㸪▼ᕝ๛ᘯ㸪ᑠす㍤᫛㸪℈㔝Ẏ㸪኱㔝㞝㧗㸪ᖹᑿᩄ㞝㸪▼஭⪽㸪
CNT ⷧ⭷㟁ᴟࢆ⏝࠸ࡓ UV ↷ᑕ࡟ᑐࡍࡿ PET ୰ࡢග㟁ὶࡢほᏛ఍᫓ᏘᏛ⾡ㅮ₇఍㸪࢜ࣥࣛ࢖ࣥ㛤ദ㸪2021 ᖺ 3 ᭶ 16㹼19 ᪥.

145㸪➨ 68 ᅇᛂ⏝≀⌮ู⣬ᵝᘧ㸰㸫㸰㢧ᚤ㙾ࢆ⏝࠸ࡓ῝⣸እⓎගࢲ࢖࣮࢜ࢻࡢගᏛホ౯
Microscopic characterization of deep-ultraviolet light-emitting diode structuresᑠᓥ୍ಙ࣭ᮾ໭኱Ꮫ࣭ከඖ≀㉁⛉Ꮫ◊✲ᡤ࣭෸ᩍᤵ
⛛∗㔜ⱥ࣭ᮾ໭኱Ꮫ࣭ከඖ≀㉁⛉Ꮫ◊✲ᡤ࣭ᩍᤵኳ㔝 ᾈ࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶◊࣭ࢭࣥࢱ࣮㛗࣭ᩍᤵᮏ⏣ၿኸ࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶◊࣭෸ᩍᤵ㸯㸬◊✲┠ⓗ ῝⣸እ⥺Ἴ㛗㡿ᇦࢆ୰ᚰ࡜ࡋ࡚㏆ᖺࠊ༙ᑟయᮦᩱࢆ⏝࠸ࡓ㧗ຠ⋡ᅛయග※ࡢ㛤Ⓨࡀ⢭ຊⓗ࡟⾜ࢃࢀ࡚࠸ࡿࠋ280 nm㹼300 nm ᖏ࡟࠾ࡅࡿ AlGaN Ⓨගࢲ࢖࣮࢜ࢻ㸦LED㸧ࡢእ㒊㔞Ꮚຠ⋡㸦EQE㸧ࡣࠊᶞ⬡ᑒṆ➼ࡀ࡞࠸ᵓ㐀࡟࡚᭱኱ 6%⛬ᗘࢆ㐩ࡋ࡚࠸ࡿࠋࡲࡓࠊ
ྠᵓ㐀ࢆᶞ⬡ᑒṆࡋࡓሙྜࠊගྲྀࡾฟࡋຠ⋡ࡀᨵၿࡋࠊ᭱኱ 10%㏆ࡃࡢ EQE ࡀሗ࿌ࡉࢀ࡚࠸ࡿࠋࡋ࠿ࡋࠊ265 nm ᖏࡢ LED ᵓ㐀࡟࠾࠸࡚ࡣࠊᶞ⬡ᑒṆࡀ࡞࠸ሙྜࡢ EQE ࡀ᭱኱࡛ 3%⛬ᗘ࡟ไ㝈ࡉࢀ࡚࠾ࡾࠊࡉࡽ࡞ࡿᨵၿࡀᮃࡲࢀ࡚࠸ࡿࠋࡑࡇ࡛ᮏ◊✲࡛ࡣࠊⓎගࣆ࣮ࢡἼ㛗ࡀ 265 nm ㏆ഐࡢ AlGaN LED ᵓ㐀ࡢᚤどⓗ࡞Ⓨග≉ᛶࢆホ౯ࡋࡓࠋ㸰㸬◊✲ෆᐜ࡜ᡂᯝ
ホ౯࡟⏝࠸ࡓヨᩱࡣࠊࢧࣇ࢓࢖࢔ᇶᯈୖ࡟ᙧᡂࡉࢀࡓ AlN ᒙ࡜ AlGaN:Si ᒙ࡟Ⓨගᒙ࡜ࡋ࡚ AlGaN 㔞Ꮚ஭ᡞࢆ᭷ࡍࡿࠋ๓ᖺᗘࡲ࡛ࡢᡃࠎࡢ◊✲࡟ࡼࡾࠊ௨ୗࡢࡇ࡜ࡀ᫂ࡽ
࠿࡟࡞ࡗ࡚࠸ࡿ㸸ձAlN ⾲㠃࡟ࡣ≉᭷ࡢ࣐ࢡࣟࢫࢸࢵࣉࡀࠊࡲࡓࠊࡑࡢ࣐ࢡࣟࢫࢸࢵࣉ
ࢆ㉳Ⅼ࡜ࡍࡿᩳ⥺ࢥࣥࢺࣛࢫࢺࡀ AlGaN:Si ᒙ࡟ᏑᅾࡍࡿࠋղAlN ⾲㠃ࡢ࣐ࢡࣟࢫࢸࢵ
ࣉࢆ㉳Ⅼ࡜ࡋ࡚ࠊ┦ᑐⓗ࡟ AlN ࣔࣝศ⋡ࡢ⤌ᡂኚㄪ㡿ᇦࡀ AlGaN:Si ᒙ࡟⏕ࡌ࡚࠸ࡿࡇ
࡜ࡀᣲࡆࡽࢀࡿࠋճࡇࢀ࡜㐃ືࡍࡿࡼ࠺࡟ࠊQW ᒙ࡟୍㒊ഴᩳ㒊ศࡀᏑᅾࡋࠊࡑࡇ࡛ࡣ
࿘ᅖࡢᖹࡓࢇ㒊㸦ࢸࣛࢫ㒊㸧࡜ẚ㍑ࡋ࡚஭ᡞᖜࡀࡸࡸᗈࡃ AlN ࣔࣝศ⋡ࡀప࠸ࡇ࡜࠿
ࡽࠊ㛢ࡌ㎸ࡵ࣏ࢸࣥࢩࣕࣝ࡜ࡋ࡚ࡣపୗࡋࡓࠊ࠸ࢃࡺࡿ࢟ࣕࣜ࢔ࡢᒁᅾᵓ㐀ࡀᙧᡂࡉࢀ
࡚࠸ࡿࠋᮏᖺᗘࡣᅗ࡟♧ࡍ㏻ࡾࠊヨᩱࡢ᩿㠃࡟ᑐࡋ࡚㉮ᰝᆺ㏱㐣㟁Ꮚ㢧ᚤ㙾㸦STEM㸧ࠊ࠾ࡼࡧ࢚ࢿࣝࢠ࣮ศᩓᆺ X ⥺ศග㸦EDS㸧ᐃࢆ⾜࠸ࠊࡑࡢ⤖ᯝࢆࣛࢨࣇ࢛࣮ࢻᚋ᪉ᩓ஘

㸦RBS㸧 ᐃࡢ⤖ᯝ࡟ࡼࡾ⿵ṇࡍࡿࡇ࡜࡟ࡼࡾࠊ⤌ᡂẚࡢ⢭ᐦ࡞Ỵᐃࢆヨࡳࡓࠋࡇࡇ࡛ࠊ
RBSᐃࡣ㠃ෆศゎ⬟ࡀ 2 nm ௨ୗࡀ⢭ᗘಖドࡉࢀ࡚࠸ࡿ⿦⨨ࢆ⏝࠸ࡓࠋࡑࡢ⤖ᯝࠊୖグࡢղ࡟࡚㏙࡭ࡓ AlN ࣔࣝศ⋡ࡢ⤌ᡂኚㄪ㡿ᇦࢆ᭷ࡍࡿ n-Al0.7Ga0.3N ᒙ࡟࠾࠸࡚ࠊ⮬ᕫᙧᡂࡉࢀࡓ㟁ὶࣃࢫࡢ⤌ᡂࡣ Al2/3Ga1/3N ࡟ᴟࡵ࡚㏆࠸⤖ᯝࡀᚓࡽࢀࡓࠋࡇࡢࡼ࠺࡞ศᩘ
ẚࡣࠊ௚ࡢ 3 ࢢ࣮ࣝࣉࡢሗ࿌[I. Bryan, et al., JGC 451, 65 (2016), K. Nagamatsu, et al., PSSC

146

5, 3048 (2008), K. Kataoka, et al. APEX 10, 031001 (2017)]࡟ࡶぢࡽࢀࡿࡇ࡜ࡀศ࠿ࡗࡓࠋ
ࡲࡓࠊ㟁ὶࣃࢫ௨እࡢ AlN ⤌ᡂࡀ㧗࠸㡿ᇦ㸦AlzGa1-zN㸧࡛ࡣ z ~ n/12㸦n = 8, 7, 6㸧ࡀほࡉࢀࡓࠋࡉࡽ࡟ࠊSTEM ࡟ࡼࡿ㟁ὶࣃࢫࡢࢼࣀࣅ࣮࣒㟁Ꮚ⥺ᅇᢡീࡣ㸪c ㍈᪉ྥ࡬ࡢ᫂☜࡞✚ᒙࢆ♧ࡉ࡞࠿ࡗࡓࡇ࡜࠿ࡽࠊc 㠃ෆࡢつ๎ⓗ࡞Ϫ᪘ཎᏊ㓄ิࡀࠊAln/12Ga1-n/12N࡜࡞ࡿࡼ࠺࡞ศᩘẚ㸦n ࡣᩚᩘ㸧࡜㛵ಀࡋ࡚࠸ࡿྍ⬟ᛶࡀ㧗࠸ࡇ࡜ࡀ♧၀ࡉࢀࡓ㸬ᅗ ⤌ᡂࡀศᩘẚ࡜⪃࠼ࡽࢀࡿ Al2/3Ga1/3N ᒙࡢ(a) STEM-EDX ࡢ Ga ⃰ᗘศᕸ㸦✵㛫ศゎ⬟㸸1.3 nm㸧ࠊ(b) STEM-EDX ീࡢ࢜ࣞࣥࢪᯟ㒊࡟ RBS ⿵ṇࢆࡋࡓ⤖ᯝࠊ(c) SEM࡟ࡼࡿ᩿㠃 CL ീ㸦✵㛫ศゎ⬟㸸40 nm㸧ࠋࡓࡔࡋࠊ

ᐃἼ㛗⠊ᅖࡣ 254s2 nmࠋ࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ཎⴭㄽᩥ㸼x

Y. Nagasawa, A. Hirano, M. Ipponmatsu, H. Sako, A. Hashimoto, R. Sugie, Y. Honda, H.
Amano, I. Akasaki, K. Kojima, and S. F. Chichibu, "Detailed analysis of Ga-rich current
pathways using n-Al0.7Ga0.3N layer grown on AlN template with dense macrosteps", Appl.
Phys. Express 13, 124001 (2020).

xᑠᓥ୍ಙ㸪㛗⃝㝧♸㸪ᖹ㔝ග㸪୍ᮏᯇṇ㐨㸪ᮡỤ㝯୍㸪ᮏ⏣ၿኸ㸪ኳ㔝ᾈ㸪㉥㷂ຬ㸪⛛∗㔜ⱥ㸪"࣐ࢡࣟࢫࢸࢵࣉࢆᣢࡘ c 㠃 AlN/ࢧࣇ࢓࢖࢔ࢸࣥࣉ࣮ࣞࢺୖ࡟ᡂ㛗ࡉࡏࡓ AlGaN 㔞Ꮚ஭ᡞࡢ≀ᛶホ౯"㸪᪥ᮏ⤖ᬗᡂ㛗Ꮫ఍ㄅ 47㸪47-3-04㸦2020㸧㸬

147

S2kik 

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Direct Observation of Spontaneous Electric Polarization in GaN Crystals
through Ultra-High Sensitive Nuclear-Spin Measurements  


研究代表者
佐々木 進・新潟大学・工学部・准教授
研究分担者
天野 浩・名古屋大学・未来材料・システム研究所・教授
久志本真希・名古屋大学・工学研究科・電子工学専攻・助教
白石 賢二・名古屋大学・未来材料・システム研究所・教授
森 勇介・名古屋大学・未来材料・システム研究所・寄附研究部門教授
研究所担当教員
天野 浩・名古屋大学・未来材料・システム研究所・教授
白石 賢二・名古屋大学・未来材料・システム研究所・教授
森 勇介・名古屋大学・未来材料・システム研究所・寄附研究部門教授







GaN をはじめとする窒化物半導体では，自発分極（＝イオン結合性が強いことに起因して，物質内部に生じる静電界）が存在すると考えられており，その傍証として複数の実験事実が報告されてきた。しかしながら，申請者の知る限り，このような自発分極を実験により直接観測したとの報告は無い。研究代表者は，物質に照射した非破壊の電波に対する核スピンからの微弱な応答を検出する装置をゼロから独自に構築し，市販装置の数 100 倍の超高感度化を実現している。核スピンは，対象とする物質の構成要素であるため，物質内部のミクロな電界を直接的に観測できる，内蔵された究極のプローブである。この事実に着目し，GaN 結晶の Ga 核スピンをプローブとして，GaN 結
晶内部の自発分極を直接的に観測することを主な目的とする。昨年度はとくに，最新の精度をもった第一原理計算を援用し，実験で得られた Ga 原子核での電場「勾配」がfactor が 1.5 倍程度と，実験との非常によい一致をみた。この一致は，実験で得られた
電場「勾配」は，確かに「分極」の方向と一致すること示している。実験で唯一，残された謎は，結晶ではなく「粉末」GaN におけるスペクトルである。粒径自体が分極しているならば，典型的な「粉末パターン」が得られるはずのところ，全くその兆候が見られなかった。この謎を解決し，GaN の自発分極を系統的に明らかにする。




148

 分担者である久志本助教と議論した結果，可能性として「粉砕にすることによってWurtzite 構造が Zinc Blend 構造に変化する」ことが指摘された。そこで，粉末 X 線
回折を専門とする研究者（青山学院大学 下山淳一教授）に依頼したところ，既に GaNではなく，GaO(OH)という別物質に変質していたことが明らかとなった。
来年度は，AlN 結晶の自発分極を明らかにするのが主テーマであるが，同時に「粉末GaN」の自発分極の有無，あればどのような大きさか，を明らかにする。
hhhhh caR5 hhhhh


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lKA]KDm[1] 権利化審査請求「自発分極装置，自発分極検出方法および自発分極検出プログラム（特願 2018-053131）：佐々木進，天野浩，白石賢二」[2] 権利化審査請求「歪み検出装置，歪み検出方法および歪み検出プログラム（特願2018-053128）：佐々木進，天野浩，白石賢二」

149ู⣬ᵝᘧ㸰㸫㸰Ỉ⁐ᛶ⤖ᬗࢫ࣏ࣥࢪస〇࡟ྥࡅࡓ '1$ ᵓ㐀యタィ࡟㛵ࡍࡿ◊✲DNA scaffold design for the development of water-soluble crystal sponges㝡ᒣ࣭᫂ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ࣭ᣍ࡬࠸ᩍᤵ
ᶓ᳃┿㯞࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ࣭◊✲ᶵ㛵◊✲ဨ⏣ᕝ⨾✑࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ࣭෸ᩍᤵ
㸯㸬◊✲┠ⓗ DNA ࡢ㓄ิ᝟ሗ࡟ᚑࡗ࡚ṇ☜࡟┦ᡭࢆ㆑ูࡋ࡞ࡀࡽ஧㔜㙐ࢆᙧᡂࡍࡿᛶ㉁㸦ሷᇶ㓄ิ≉␗ⓗ⤖ྜ⬟㸧ࢆ฼⏝ࡍࡿ࡜ࠊሷᇶ㓄ิࢆ⮬⏤࡟᭩ࡁ᥮࠼࡚ࣉࣟࢢ࣒ࣛࡋࠊࢼࣀ⢏Ꮚࡢ㧗ḟᵓ㐀໬ࢆไᚚ࡛ࡁࡿࠋ᭦࡟ࠊDNA ࡢ㛗ࡉࡸࡑࡢ❧యᵓ㐀ࢆ㐺ษ࡟タィࡍࡿࡇ࡜࡛ࠊ⢏Ꮚ㛫㊥㞳࡜✵㛫ⓗ㓄⨨ࡢࡉࡽ࡞ࡿไᚚࡀྍ⬟࡜࡞ࡿࠋᚑࡗ࡚ࠊྂ඾ⓗ࡞ࢥࣟ࢖ࢻ
⤖ᬗ໬ἲ࡛࠶ࡿ⁐፹⵨Ⓨἲࡸỿ㝆ἲ࡛ࡣᐇ⌧ࡀᅔ㞴࡞⢏Ꮚ඘ሸ⋡ࡢప࠸⤖ᬗᵓ㐀ࢆᙧᡂ࡛ࡁࡿࡇ࡜ࡀ฼Ⅼ࡜ࡋ࡚ᣲࡆࡽࢀࡿࠋࡋ࠿ࡋ࡞ࡀࡽࠊࡇࢀࡲ࡛⤖ᬗෆࡢ✵㛫࡟╔┠ࡋࡓ◊✲ࡣ㠀ᖖ࡟㝈ᐃⓗ࡛࠶ࡿࠋᮏ◊✲࡛ࡣࠊDNA ಟ㣭ࢼࣀ⢏Ꮚࡢ⤖ᬗ໬ࢆ㧗ᗘ࡟ไᚚࡍࡿࡇ࡜࡛ࠊ⏕యศᏊࡸࢼࣀ
⢏Ꮚࢆ⡆౽࠿ࡘỗ⏝ⓗ࡟⤖ᬗෆ✵㛫࡟ᑒධ࣭㓄⨨ࡍࡿᡭἲࢆ㛤Ⓨࡍࡿࡇ࡜ࢆ┠ᣦࡋࡓ㸦ᅗ 1㸧ࠋ⏕య㐺ྜᛶࡢ㧗࠸ DNA ࡜㔠ࢼࣀ⢏Ꮚ࡛ᵓᡂࡉࢀࡿከᏍᛶ⤖ᬗࡣࢱࣥࣃࢡ㉁࡞
࡝ࡢ⏕య㧗ศᏊ࡜ࡢぶ࿴ᛶࡀ㧗࠸Ⅽࠊࢻࣛࢵࢢࢹࣜࣂ࣮ࣜࢩࢫࢸ࣒ࡢ࢟ࣕࣜ࢔ࠊࣂ࢖࢜
ࢭࣥࢧ࣮ࠊ㓝⣲཯ᛂࡢሙ࡞
࡝࡬ࡢ฼⏝ࡀᮇᚅ࡛ࡁࡿࠋ
ࡉࡽ࡟ࠊつ๎ⓗᵓ㐀ࢆ᭷ࡍ
ࡿ DNA ࢼࣀ⢏Ꮚ⤖ᬗෆ࡟㔠ᒓࡸ༙ᑟయ࡞࡝ࡢࢼࣀᮦ㠀බ㛤⟠ᡤᩱࢆ⢭ᐦ㓄⨨ࡍࡿࡇ࡜ࡀฟ
᮶ࢀࡤࠊᛶ㉁ࡢ␗࡞ࡿ࣊ࢸ
ࣟ࡞ࢼࣀᮦᩱࡢ᪂つ㓄ิไᚚἲཬࡧᶵ⬟ᛶࢹࣂ࢖ࢫ㛤Ⓨ࡬ࡢᛂ⏝ྍ⬟ᛶࡀᗈࡀࡿࠋ

㸰㸬◊✲ෆᐜ࡜ᡂᯝ 㸦㸯㸧㸨㸨㠀බ㛤⟠ᡤ㸨㸨ࢆ⏝࠸ࡓᶵ⬟໬ DNA ࢼࣀ⢏Ꮚ⤖ᬗࡢస〇⤖ᬗࡢᵓᡂせ⣲࡛࠶ࡿ DNA ࡢ฼Ⅼ࡜ࡋ࡚ࠊᵝࠎ࡞໬Ꮫಟ㣭ࢆᑟධࡍࡿࡇ࡜࡛ᶵ⬟ࢆ㏣ຍࡍࡿࡇ࡜ࡀ࡛ࡁࡿࡇ࡜ࡀᣲࡆࡽࢀࡿࠋࡇࡢ≉ᚩࢆ⏕࠿ࡋࠊ⤖ᬗෆ࡟ศᏊࢆᑒධࡍࡿࡓ
ࡵࡢᶵᵓ࡜ࡋ࡚ࠊ㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㠀බ㛤⟠ᡤ㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨ࠊ࡜࠸࠺࢔ࣉ࣮ࣟࢳࢆヨࡳࡓࠋ150

స〇ࡋࡓᶵ⬟໬ DNA ࢼࣀ⢏Ꮚ⤖ᬗࡣࠊX ⥺ᑠゅᩓ஘࡟ࡼࡾ⁐ᾮ୰࡛ᵓ㐀ゎᯒࢆ⾜࠸ࠊbcc ᵓ㐀࡛࠶ࡿࡇ࡜ࢆ☜ㄆࡋࡓࠋ 㸦㸰㸧㸨㸨㸨㸨㠀බ㛤⟠ᡤ㸨㸨㸨㸨㸨㸨㸨㸨㸨㠀බ㛤⟠ᡤ㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨ࠊඹ↔Ⅼ࣮ࣞࢨ࣮㢧ᚤ㙾ࢆ⏝࠸࡚㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㠀බ㛤⟠ᡤ㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨ࠋගᏛⓗษ∦ീࡀᚓࡽࢀࡿ

㠀බ㛤⟠ᡤඹ↔Ⅼ࣮ࣞࢨ࣮㢧ᚤ㙾ࢆ⏝࠸࡚⤖ᬗ࠾ࡼࡧ㸨㸨㸨㸨㠀බ㛤⟠ᡤ㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨ࠊ⤖ᬗ࡬ࡢ⤖ྜ≧ែࢆ 3 ḟඖⓗ࡟ほᐹࡋࡓࠋほᐹࡢ⤖ᯝࠊ㸨㸨㸨㸨㠀බ㛤⟠ᡤ㸨㸨㸨㸨 ⤖ྜࡋ࡚࠸ࡿࡇ࡜ࡀ☜ㄆࡉࢀࡓ㸦ᅗ㸰㸧ࠋ
ࡲࡓࠊDNA ࢼࣀ⢏Ꮚ⤖ᬗࢆ⏝࠸࡚㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㠀බ㛤⟠ᡤ㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨≉␗ⓗ࡟⤖ྜࡍࡿࡇ࡜ࢆඹ↔Ⅼ࣮ࣞࢨ࣮㢧ᚤ㙾࡟

ࡼࡿ 3 ḟඖ⺯ග࢖࣓࣮ࢪࣥࢢ࡟ࡼࡾ☜ㄆࡋࡓࠋ࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ᅜ㝿࣭ᅜෆ఍㆟㸼
[1] ᶓ᳃┿㯞ࠊⳢ㔝ⱱኵࠊ୰ᮧᙲⰋࠊཎ⏣ಇኴࠊᏱ἞ཎᚭࠊ⏣ᕝ⨾✑ࠊศᏊᤕᤊ⬟ࢆ᭷
ࡍࡿ DNA ಟ㣭㔠ࢼࣀ⢏Ꮚ⤖ᬗࡢ㛤Ⓨࠊ໬ᏛᕤᏛ఍➨ 86 ᖺ఍ࠊ2021 ᖺ 3 ᭶ 20 ᪥㹼
22 ᪥[2] ᶓ᳃┿㯞ࠊⳢ㔝ⱱኵࠊ୰ᮧᙲⰋࠊ⏣ᕝ⨾✑ࠊDNA ࢥࣟ࢖ࢻ⤖ᬗࢆ཯ᛂሙ࡜ࡋ࡚ά⏝ࡍࡿヨࡳࠊ᪥ᮏ㎰ⱁ໬Ꮫ఍ 2021 ᖺᗘ኱఍ࠊ2021 ᖺ 3 ᭶ 18 ᪥㹼21 ᪥㸺⏘ᴗ㈈⏘ᶒ㸼[1] ฟ㢪␒ྕ㸸PCT/JP2020/35332Ⓨ᫂⪅㸸ᒣす㝧Ꮚࠊ⏣ᕝ⨾✑ࠊⳢ㔝ⱱኵࠊ㯤ᩥᩗࠊᶓ᳃┿㯞
Ⓨ᫂ࡢྡ⛠㸸ᑟධ⿦⨨ࠊ㧗ศᏊࡢ⣽⬊ᑟධ᪉ἲࠊ㹂㹌㸿ࢼࣀ⢏Ꮚ⤖ᬗཬࡧ㹂㹌㸿ࢼࣀ⢏Ꮚ⤖ᬗᑒධయࡢ〇㐀᪉ἲฟ㢪ே㸸ᅜ❧኱Ꮫἲே஑ᕞ኱Ꮫࠊᅜ❧኱Ꮫἲேᮾᾏᅜ❧኱Ꮫᶵᵓࠊᅜ❧◊✲㛤Ⓨἲே⏘ᴗᢏ⾡⥲ྜ◊✲ᡤฟ㢪᪥㸸2020 ᖺ 09 ᭶ 17 ᪥151ู⣬ᵝᘧ㸰㸫㸰ගບ㉳ㄏ㟁యࢼࣀᵓ㐀ࡢ๰ࡿ☢Ẽቑᙉሙ࡛ࡢ࢟ࣛࣝ᰾ᙧᡂ
Chiral Nucleation in Optical Magnetic Field Enhancedby Mie Resonance of Dielectric Nanostructure᪂ᐙᐶṇ࣭ᮾ໭኱Ꮫ࣭㔠ᒓᮦᩱ◊✲ᡤ࣭ຓᩍ⏣ᕝ⨾✑࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ௜ᒓᮍ᮶࢚ࣞࢡࢺࣟ
ࢽࢡࢫ㞟✚ࢭࣥࢱ࣮࣭෸ᩍᤵ

㸯㸬◊✲┠ⓗ ࢟ࣛࣝ࡞⤖ᬗᵓ㐀୰࡛ࡣࠊࢫࣆࣥ㌶㐨┦஫స⏝࡟ࡼࡗ࡚㟁Ꮚࢫࣆࣥࡢ⦰㏥ࡀゎࡅࡿࡓࡵࠊࢫࣆࣥࡢไᚚࡀྍ⬟࡜࡞ࡿࠋᚑࡗ࡚ࠊ࢟ࣛࣝ⤖ᬗࡢไᚚࡣࢫࣆࣥࢺࣟࢽࢡࢫࡢほⅬ࠿ࡽ㔜せ࡛࠶ࡾࠊᮍ᮶ࡢప࢚ࢿࣝࢠ࣮ᾘ㈝♫఍ࡢᇶ┙࡜࡞ࡿ⤖ᬗᮦᩱࡢไᚚ࡟⧅ࡀࡿࠋ
ࡋ࠿ࡋࠊ⤖ᬗ࢟ࣛࣜࢸ࢕ࢆእሙ࡟ࡼࡾ௵ព࡟ไᚚࡍࡿᢏ⾡ࡣ㛤Ⓨࡉࢀ࡚࠸࡞࠸ࠋ࢟ࣛࣜ
ࢸ࢕ࢆ♧ࡍእሙ࡜ࡋ࡚ࡣ㟁☢ሙࡀᣲࡆࡽࢀࠊྂࡃ࠿ࡽࠊ⤯ᑐ୙ᩧྜᡂࢆᕥྑ෇೫ග↷ᑕ࡟ࡼࡾ㥑ືࡍࡿࡇ࡜࡛㙾ീయ␗ᛶ㐣๫ࢆㄏ㉳ࡍࡿ㸦࢟ࣛࣜࢸ࢕ࢆไᚚࡍࡿ㸧ヨࡳࡀᡂࡉࢀ࡚ࡁࡓࡀࠊࡑࡢຠ⋡ࡣᴟࡵ࡚ప࠸ࡢࡀ⌧≧࡛࠶ࡿࠋࡑࡢཎᅉࡢ୍ࡘ࡜ࡋ࡚ࠊ㟁☢ሙࡢ☢ሙࡢຠᯝࡀᑠࡉ࠸ࡇ࡜ࡀᣲࡆࡽࢀࡿࠋග྾཰ࡢ኱ࡁࡉࢆᢸ࠺㟁Ꮚ㑄⛣☜⋡ࡣࠊ㟁Ẽ཮ᴟᏊ㑄⛣(E1)ࠊ☢Ẽ཮ᴟᏊ㑄⛣(M1)ࠊ㟁Ẽᅄ㔜ᴟᏊ㑄⛣☜⋡(E2)ࡢ࿴࡟ẚ౛ࡋࠊ୧㙾ീయ㛫࡛ࡢᕥྑ෇೫ගࡢග྾཰ᕪ࡛࠶ࡿ෇஧Ⰽᛶ㸦ᕥྑ㠀ᑐ⛠ᛶ㸧ࡢ኱ࡁࡉࡣ M1 ࡜ E2ࡢᐤ୚࡟ᙉࡃ౫ᏑࡍࡿࠋM1 ࡜ E2 㐣⛬ࡢᐤ୚ࡢ▸ᑠࡉᨾࠊ෇஧Ⰽᛶࡣ୍⯡ⓗ࡟ᚤᙅ࡛࠶ࡾࠊࡇࡢ▸ᑠࡉࡀຠ⋡ⓗ࡞㙾ീ␗ᛶ㐣๫⋡ㄏ㉳ࡢ࣎ࢺࣝࢿࢵࢡ࡜࡞ࡗ࡚࠸ࡿࠋM1 ࡜
E2 㐣⛬ࡢቑᙉ࡟ࡣࠊ☢ሙࡢ኱ࡁࡉཬࡧ㟁ሙ໙㓄ࡢᛴᓧࡉࡀࡑࢀࡒࢀᚲせ࡛࠶ࡿࡇ࡜ࡀ
▱ࡽࢀ࡚࠸ࡿࠋㄏ㟁యࢼࣀᵓ㐀య࡬ࡢග↷ᑕ࡟ࡼࡾບ᣺ࡉࢀࡿ Mie ඹ᣺࡛ࡣࠊගᏛⓗ࡞☢Ẽඹ㬆ࡀࠊࡑࡢ㏆᥋ሙ࡟࠾࠸࡚ගᏛ㟁Ẽඹ㬆ࡢᙉᗘ࡜ྠ⛬ᗘࡢᙉᗘࡲ࡛ቑᙉࡉࢀࡿࡇ
࡜ࡀ▱ࡽࢀ࡚࠸ࡿࠋຍ࠼࡚ࠊ㏆᥋ሙࡢⓎ⏕࡟ࡼࡾࠊᛴᓧ࡞㟁ሙ໙㓄ࡀᙧᡂࡍࡿࡇ࡜ࡀ▱ࡽࢀ࡚࠸ࡿࠋࡇࢀࡽࡢ☢ሙ࣭㟁ሙ໙㓄ቑᙉࡢᐤ୚࡟ࡼࡾࠊM1 ࡜ E2 㐣⛬ࡢቑᙉࡀᮇᚅ
࡛ࡁࠊ࣎ࢺࣝࢿࢵࢡࢆඞ᭹࡛ࡁࡿྍ⬟ᛶࡀ࠶ࡿࠋ ࡑࡇ࡛ࠊᮏ◊✲࡛ࡣࠊග↷ᑕ࡟ࡼࡾ Mie ඹ᣺ࡀບ᣺ࡉࢀࡓㄏ㟁యࢼࣀᵓ㐀యୖ࡛ࠊ࢟
ࣛࣝ᰾ᙧᡂ࣭⤖ᬗ໬ࢆㄏ㉳ࡍࡿࡇ࡜࡛ࠊ⤖ᬗ࢟ࣛࣜࢸ࢕ไᚚࡍࡿࡇ࡜ࢆ┠ⓗ࡜ࡋࡓࠋ㸰㸬◊✲ෆᐜ࡜ᡂᯝ
㟁Ꮚ⥺㟢ග⿦⨨ࢆ⏝࠸࡚ࠊ୍㎶ 480 nm ࡢ༜ᆺᵓ㐀ࢆᵓᡂ༢఩࡜ࡋࡓ 96nm 㛫㝸ࡢࢼࣀ࿘ᮇᵓ㐀ࡢ࣏ࢪᆺࣞࢪࢫࢺ⭷(ZEP520A)ࢆࠊ150 nm ࡢཌࡳࡢ⤖ᬗ Si ⷧ⭷ࡀᙧᡂࡉࢀࡓ
▼ⱥᇶᯈୖ࡟సᡂࡋࡓࠋࣞࢪࢫࢺ⭷ୖ࡟ Cr ⷧ⭷(30 nm)ࢆࠊ㟁Ꮚ⥺⵨╔⿦⨨ࢆ⏝࠸࡚ᙧᡂࡋࠊࣞࢪࢫࢺࢆ๤㞳ࡍࡿࡇ࡜࡛ Cr ࡢࣁ࣮ࢻ࣐ࢫࢡࢆᙧᡂࡋࡓࠋࡑࡢᚋࠊᇶᯈࢆ
Deep-Reactive Ion Etching (Deep-RIE)ࡢ࣎ࢵࢩࣗἲ࡟ࡼࡾ࢚ࢵࢳࣥࢢࡋࠊCr ࣁ࣮ࢻ࣐ࢫࢡ

152

ࢆ㝖ཤࡍࡿࡇ࡜࡛ Si ࢟ࣛࣝࢼࣀᵓ㐀 య ࢆ స ᡂ ࡋ ࡓ (Fig. 㸯 ) ࠋ**************************************************************************************************************************************************************************************************************************************************************************************
㠀

බ

㛤

⟠

ᡤ

********************************

Fig. 1. A Fabrication process of Si periodic nanostructure. B
Scanning electron microscopic image of resist layer after
development. C Atomic force microscopic image of theresulting Si nanostructure.

*****************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************

࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ཎⴭㄽᩥ㸼
࣭ Hiromasa Niinomi, Teruki Sugiyama, Miho Tagawa, Toru Ujihara, Takashige Omatsu,
Katsuhiko Miyamoto, Hiroshi Y. Yoshikawa, Ryuzo Kawamura, Jun Nozawa, Junpei T.
Okada, Satoshi Uda Cryst. Growth and Des., 20, 5493-5507.
㸺ᅜ㝿࣭ᅜෆ఍㆟㸼࣭᪂ᐙᐶṇ㸪ᮡᒣ㍤ᶞ㸪⏣ᕝ⨾✑, Ᏹ἞ཎᚭ, ᑿᯇᏕⱱ, ྜྷᕝὒྐ, ᕝᮧ㝯୕, 㔝⃝⣧, ᒸ⏣⣧ᖹ, Ᏹ⏣⪽, ࣉࣛࢬࣔࣥගࣆࣥࢭࢵࢺ࡟ࡼࡿሷ⣲㓟ࢼࢺ࣒ࣜ࢘࢟ࣛࣝ⤖ᬗ໬ࢡ࣮ࣜࣉ᧯స̿᥋ゐㄏ㉳ከᙧ㌿⛣࡟ࡼࡿ࢟ࣛࣜࢸ࢕㌿෗ไᚚ࣭㧗ᐦᗘᾮ┦๓㥑యᙧᡂ̿㸪➨ 49 ᅇ⤖ᬗᡂ㛗ᅜෆ఍㆟㸪࢜ࣥࣛ࢖ࣥ㸪2020 ᖺ 11 ᭶ 9 ᪥.
㸺⏘ᴗ㈈⏘ᶒ㸼࣭ヱᙜ࡞ࡋࠋ

153ู⣬ᵝᘧ㸰㸫㸰㟁Ⲵ⛛ᗎㄏ㉳ᙉㄏ㟁య 5)H2㸦5㸸ᕼᅵ㢮ඖ⣲㸧࡟࠾ࡅࡿᒁᡤᵓ㐀
/RFDOVWUXFWXUHLQFKDUJHRUGHULQJLQGXFHGIHUURHOHFWULF5)H2 5UDUHHDUWKHOHPHQWV ᇼ㒊 㝧୍࣭஑ᕞᕤᴗ኱Ꮫ࣭኱Ꮫ㝔ᕤᏛ◊✲㝔࣭෸ᩍᤵ㛗ᑿ ඲ᐶ࣭ྡྂᒇ኱Ꮫ ᮍ᮶ᮦᩱࢩࢫࢸ࣒◊✲ᡤ࣭෸ᩍᤵ
㸯㸬◊✲┠ⓗ ࣐ࣝࢳࣇ࢙ࣟ࢖ࢵࢡ≀㉁ࡢ୍ࡘ࡜ࡋ࡚ࠊ
ᕼᅵ㢮ඖ⣲ࢆྵࡴᒙ≧ࣇ࢙ࣛ࢖ࢺ≀㉁ 5)H2
ࡀᣲࡆࡽࢀࡿࠋᮏ≀㉁ࡢᙉㄏ㟁ᛶࡢ㉳※࡟ࡘ࠸࡚ࡣࠊ㕲࢖࢜ࣥࡢ㟁Ⲵࡢ୙ᆒ⾮࡟㉳ᅉࡍࡿࡶࡢ࡛࠶ࡿࡇ࡜ࡀᣦ᦬ࡉࢀ࡚࠸ࡿࠋࡇࡢࡼ࠺࡞㟁Ⲵㄏ㉳ᙉㄏ㟁≉ᛶࡣࠊ㟁Ⲵ⛛ᗎᵓ㐀࡟኱ࡁࡃᙳ㡪ࡉࢀࡿࡇ࡜࠿ࡽࠊヨᩱ୰࡟ᏑᅾࡍࡿⅬḞ㝗ࡸࢡࣛࢫࢱ࣮໬➼ࡢḞ㝗࡟኱ࡁࡃ౫Ꮡࡍࡿࠋᮏ◊✲࡛ࡣࠊࡇ࠺࠸ࡗࡓḞ㝗࡟ࡼࡿᩓₔᩓ஘࡟╔┠ࡋࠊᮏ⣔࡟࠾ࡅࡿᩓₔ
ᩓ஘ࡢ㏫✵㛫࡟࠾ࡅࡿศᕸ࡟ࡘ࠸࡚㏱㐣ᆺ㟁Ꮚ㢧ᚤ㙾 ௨ୗ 7(0 ࢆ⏝࠸࡚ㄪ࡭ࡓࠋ
㸰㸬◊✲ෆᐜ࡜ᡂᯝ ほᐹ࡟⏝࠸ࡓヨᩱࡣࠊ5)H2 ࡢ㕲ࢧ࢖ࢺࡢ୍㒊ࢆḞᦆࡉࡏࡓ <E)H[2 ࢭ࣑ࣛࢵࢡࢫ
ヨᩱ ௨ୗ <E)H[2 ࡛࠶ࡿࠋほᐹ࡟⏝࠸ࡓ 7(0 ࡣࠊ-(0) ຍ㏿㟁ᅽ㸸N9 ࡛࠶ࡾࠊほᐹヨᩱࡢస〇ࡣ⢊○ἲࢆ⏝࠸࡚⾜ࢃࢀࡓࠋ <E)H[2 ヨᩱࢆ⏝࠸࡚ࠊ㏱㐣ᆺ㟁Ꮚ㢧ᚤ㙾࡟ࡼࡿ㟁Ꮚᅇᢡᅗᙧࡢほᐹࢆ⾜ࡗࡓࠋヨᩱࡢᐊ࡟࠾ࡅࡿ㟁Ꮚᅇᢡᅗᙧࢆࠊᅗ  ࡟♧ࡍࠋ㟁Ꮚ⥺ࡢධᑕ᪉ྥࡣࠊࡑࢀࡒࢀ D >@ධᑕࠊ E >@ ධᑕ࡛࠶ࡾࠊᣦᩘ௜ࡅࡣ R-3m ᵓ㐀ࢆᇶ‽࡟⾜ࡗ࡚࠸ࡿࠋᅇᢡᅗᙧ୰࡟

ᅗ  ᐊ

࡟࠾ࡅࡿ <E)H[2 ࡢ㟁Ꮚᅇᢡᅗᙧ

 D >@ ධᑕ  E >@ ධᑕ


154



ࡣࠊᙉ࠸ᙉᗘࢆᣢࡘᅇᢡᩬⅬࡀほᐹࡉࢀࡿࠋ᪤▱ࡢ⤖ᬗᵓ㐀ࢹ࣮ࢱ࡟ࡼࡾసᡂࡉࢀࡓ୕
ḟඖ㏫᱁Ꮚ࡜ࡢẚ㍑࠿ࡽࠊࡇࢀࡽࡢᅇᢡᩬⅬࡣ✵㛫⩌ R-3m ࡟ࡼࡿࡶࡢ࡜ࡋ࡚▩┪࡞ࡃㄝ࡛᫂ࡁࡿࡇ࡜ࡀ᫂ࡽ࠿࡜࡞ࡗࡓࠋࡇࡇ࡛ >@ ධᑕࡢ㟁Ꮚᅇᢡᅗᙧࢆヲ⣽࡟ほᐹࡍࡿ࡜ࠊ▮༳ 㯤  ࡛♧ࡍࡼ࠺࡟ࠊྛᅇᢡᩬⅬࡢ㛫࡟ᙅ࠸ᙉᗘࡢᩓₔᩓ஘ࡀほᐹࡉࢀࡿࠋ
ࡑࡇ࡛ࠊࡇࡢᩓₔᩓ஘ࡢヲ⣽ࢆㄪ࡭ࡿࡓࡵ࡟ࠊヨᩱࢆഴᩳࡉࡏࠊᅇ㌿ᐇ㦂ࢆ⾜ࡗࡓࠋᚓࡽࢀࡓ⤖ᯝࢆᅗ  ࡢ D ࠾ࡼࡧ E  ࡟♧ࡍࠋ D  ࡢ㟁Ꮚ⥺ࡢධᑕ᪉ྥࡣ >@ ධᑕ࡛࠶ࡾࠊ E ࡣࠊ D  ࠿ࡽ ヨᩱࢆഴᩳࡉࡏࠊ᧜ᙳࡋࡓ㟁Ꮚᅇᢡᅗᙧ࡛࠶ࡿࠋ࡞࠾ࠊどㄆᛶྥୖࡢࡓࡵ࡟ࠊࢥࣥࢺࣛࢫࢺࢆ཯㌿ࡉࡏ࡚࠸ࡿࠋ

ᅗ  <E)H[2 ࡢᅇ㌿ᐇ㦂ࡢ㟁Ꮚᅇᢡᅗᙧ
 D   >@ ධᑕE   D  ࠿ࡽ ഴᩳᅗᅇ㌿ᐇ㦂ࡢ⤖ᯝ࠿ࡽࠊᮏ⣔࡟࠾ࡅࡿ≉ᚩⓗ࡞ᩓₔᩓ஘ࡢᏑᅾࡀぢฟࡉࢀࡓࠋᵝࠎ࡞ഴ
ᩳゅᗘ࡟࠾࠸࡚ほᐹࡉࢀࡓᩓₔᩓ஘ࡢᙧ≧࠿ࡽࠊᮏ⣔࡟࠾࠸࡚ᅇᢡᩬⅬࡢ㛫ࡢ  ఩⨨࡟ࢪࢢࢨࢢ≧ࡢᩓₔᩓ஘ࡀほᐹࡉࢀࡿ࡜ྠ᫬࡟ࠊࣁࢽ࣒࢝᱁Ꮚ≧ཬࡧᩳࡵ᪉ྥࡢࣟ
ࢵࢻ≧ࡢᩓₔᩓ஘ࡀぢฟࡉࢀࡿࡇ࡜ࡀ᫂ࡽ࠿࡜࡞ࡗࡓࠋᚑ᮶ࡢ◊✲࠿ࡽ 5)H2 ࡢ⤖ᬗෆࡢ )H2 ᒙ࡟࠾࠸࡚㟁Ⲵࡀࣘࢽ࣮ࢡ࡞⛛ᗎᵓ㐀ࢆᙧᡂࡍࡿࠋ<E)H[2 ࡛ࡣࠊ)Hࡢ๭ྜࡀቑ࠼ࡿࡇ࡜࡟ࡼࡾ୕ḟඖ㟁Ⲵ⛛ᗎᵓ㐀ࢆ◚ቯࡉࢀࠊᮏ⣔࡟࠾ࡅࡿ≉ᚩⓗ࡞ᩓₔᩓ஘ࡀ⌧ࢀࡿ࡜⪃࠼ࡽࢀࡿࠋ
ཧ⪃ᩥ⊩㸸
>@1,NHGD+2KVXPL.2KZDGD.,VKLL7,QDPL..DNXUDL<0XUDNDPL.<RVKLL6
0RUL<+RULEHDQG+.LWR1DWXUH  >@<+RULEH.<RVKLL1,NHGDDQG60RUL3K\V5HY%  ࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ᅜ㝿࣭ᅜෆ఍㆟㸼㸦㸰㸮㸰㸯ᖺ㸴᭶ࡢ㔠ᒓᏛ఍➼஑ᕞᨭ㒊ྜྠㅮ₇఍࡟࡚Ⓨ⾲ணᐃ㸧155ู⣬ᵝᘧ㸰㸫㸰Ϫ᪘❅໬≀༙ᑟయᮦᩱࢆ⏝࠸ࡓ୰ᛶᏊ༙ᑟయ᳨ฟჾࡢヨస
Fabrication of neutron semiconductor detector using group-Ϫ nitride semiconductor୰㔝㈗அ࣭㟼ᒸ኱Ꮫ࣭Ꮫ⾡㝔ᕤᏛ㡿ᇦ࣭෸ᩍᤵ     ୰ᕝኸஓ࣭㟼ᒸ኱Ꮫ࣭㟁ᏊᕤᏛ◊✲ᡤ࣭༤ኈ◊✲ဨ     ኴ⏣ᝆᩯ࣭㟼ᒸ኱Ꮫ࣭⥲ྜ⛉Ꮫᢏ⾡◊✲⛉࣭኱Ꮫ㝔⏕(M2)     ΎỈຬᕼ࣭㟼ᒸ኱Ꮫ࣭⥲ྜ⛉Ꮫᢏ⾡◊✲⛉࣭኱Ꮫ㝔⏕(M2)     ᯇᕝ┿ஓ࣭㟼ᒸ኱Ꮫ࣭⥲ྜ⛉Ꮫᢏ⾡◊✲⛉࣭኱Ꮫ㝔⏕(M1)     ᐑ⃝⠜ஓ࣭㟼ᒸ኱Ꮫ࣭⥲ྜ⛉Ꮫᢏ⾡◊✲⛉࣭኱Ꮫ㝔⏕(M1)     ኟ┠᭸ᖾ࣭㟼ᒸ኱Ꮫ࣭ᕤᏛ㒊㟁Ꮚ≀㉁⛉Ꮫ⛉࣭኱Ꮫ⏕(B4)     ᮏ⏣ၿኸ࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ࣭෸ᩍᤵ
㸯㸬◊✲┠ⓗ ㏆ᖺࠊ་⒪ࠊ⏘ᴗࠊࢭ࢟ࣗࣜࢸ࢕࣮ࡢศ㔝࡟࠾࠸࡚ࠊ୰ᛶᏊ࢖࣓࣮ࢪࣥࢢᢏ⾡ࡣ᪂ࡓ࡞㏱㐣࢖࣓࣮ࢪࣥࢢᡭ
ἲ࡜ࡋ࡚ᮇᚅࡉࢀ࡚࠾ࡾࠊ㧗࢚ࢿࣝࢠ࣮ศゎ⬟ࠊ㧗 n / Țẚࡢ୰ᛶᏊ᳨ฟჾࡀồࡵࡽࢀ࡚࠸ࡿࠋࡋ࠿ࡋ࡞ࡀࡽࠊ
୰ᛶᏊ࢖࣓࣮ࢪࣥࢢ࡞࡝࡟⏝࠸ࡽࢀࡿ༙ᑟయ᳨ฟჾࡢ㐩ᡂࡣ࡞ࡉࢀ࡚࠾ࡽࡎᐇ⌧ࡀᮇᚅࡉࢀ࡚࠸ࡿࠋࡲࡓࠊ㏆ᖺὀ┠ࡉࢀ࡚࠸ࡿཎᏊຊⓎ㟁࡟㛵ࡋ࡚ࡶ୰ᛶᏊࣔࢽࢱࣜࣥࢢ࡟⏝࠸ࡽࢀ࡚࠸ࡓ 3He ࢞ࢫィᩘ⟶ࡢ฼⏝ࡀ He ࢞ࢫࡢᯤῬࡼࡾ౪⤥ᅔ㞴࡜࡞ࡗ࡚࠾ࡾࠊ᪂ࡋ࠸᳨ฟჾࡢ㛤Ⓨࡀᮇᚅࡉࢀ࡚࠸ࡿࠋࡑࡇ࡛ࠊ୰ᛶᏊᤕ⋓᩿㠃✚ࡀ኱ࡁ࡞ B ཎᏊࢆྵࡴ༙ᑟయᮦᩱ࡛࠶ࡿ BGaN ࢆ୰ᛶᏊ᳨ฟ༙ᑟయ࡜ࡋ࡚ᥦ᱌ࡋ㛤Ⓨࢆ⾜ࡗ࡚࠸ࡿࠋࡇࢀࡲ࡛ࡢ
◊✲࡟࠾࠸࡚ࠊBGaN ⤖ᬗᡂ㛗ᢏ⾡ࡢ㛤Ⓨ࡟ࡼࡾࠊཌ⭷ᡂ㛗࠾ࡼࡧ⤖ᬗရ㉁ࡢྥୖࢆ㐩ᡂࡋ BGaN ᳨ฟჾࡢᨺ
ᑕ⥺᳨ฟ≉ᛶࡀᨵၿࡉࢀ࡚ࡁࡓࠋࡋ࠿ࡋࠊ㟁ᴟࣃࢱ࣮ࣥࢆࡣࡌࡵ࡜ࡍࡿࢹࣂ࢖ࢫᵓ㐀࡟ࡘ࠸᳨࡚ウࡉࢀ࡚࠾ࡽ
ࡎࠊࢹࣂ࢖ࢫࣃࢱ࣮ࣥ࡟㛵ࡍࡿᣦ㔪ࡀᚲせ࡛࠶ࡿࠋࡑࡇ࡛ᮏ◊✲࡛ࡣࠊ࢖࣓࣮ࢪࣥࢢ⏝㏵ࡢ୰ᛶᏊ᳨ฟჾ࡜ࡋ
࡚࢖࣓࣮ࢪࣥࢢീࡢゎീᗘྥୖ࡟㔜せ࡞ࢳࢵࣉࢧ࢖ࢬࠊ୪ࡧ࡟㟁ᴟࣃࢱ࣮ࣥࡢ᳨ウࢆ⾜࠸ࠊࢹࣂ࢖ࢫᵓ㐀ࡀᨺᑕ⥺᳨ฟ≉ᛶ࡟୚࠼ࡿᙳ㡪ࡢホ౯ࢆ⾜ࡗࡓࠋ㸰㸬◊✲ෆᐜ࡜ᡂᯝ ᭷ᶵ㔠ᒓẼ┦࢚ࣆࢱ࢟ࢩ࣮(MOVPE)ἲࢆ⏝࠸࡚స〇ࡋࡓ BN ࣔࣝศ⋡⣙ 1%ࠊ⭷ཌ⣙ 7 m ࡢ BGaN⤖ᬗࢆ⏝࠸࡚ࠊBGaN ࢲ࢖࣮࢜ࢻࡢస〇ࢆᐇ᪋ࡋࡓࠋ
ࢲ࢖࣮࢜ࢻࡢ㟁ᴟᵓ㐀࡟ࡣࠊᚤ⣽໬ࣃࢱ࣮ࣥࡢ᳨ウࡢࡓࡵ n ᆺ㟁ᴟࡢࢫࢺࣛ࢖ࣉᖜ 20~100 m(࣓ࢧᖜ40㹼120 m)ࡢ᷸ᆺ㟁ᴟᵓ㐀࡜┤ᚄ 0.1~1 mm ࡢ෇ᙧ㟁ᴟᵓ㐀ࡢ᳨ฟჾࢆస〇ࡋ(ᅗ 1 ཧ↷)ࠊᨺᑕ⥺᳨ฟ≉ᛶホ౯ࢆᐇ᪋ࡋࡓࠋ

156

᷸ᆺ㟁ᴟᵓ㐀ࢆ⏝࠸ࡓࢹࣂ࢖ࢫࢆ⏝࠸࡚D⥺↷ᑕᐇ㦂ࢆᐇ᪋ࡋࠊn ᆺ㟁ᴟࡢࢫࢺࣛ࢖ࣉᖜ౫Ꮡᛶࢆホ౯ࡋࡓࠋD⥺᳨ฟຠ⋡ࡢࢫࢺࣛ࢖ࣉᖜ౫
Ꮡᛶࢆᅗ 2 ࡟♧ࡍࠋࢫࢺࣛ࢖ࣉᖜࡢቑຍ࡟క࠸ࠊD⥺᳨ฟຠ⋡ࡢపୗࡀ☜ㄆࡉࢀࡓࠋD⥺᳨ฟ࡟᭷ຠ࡞㟁ᴟ㡿ᇦࢆ p ᆺ㟁ᴟ࠿ࡽ 30 m ࡜㏆ఝࡋ࡚⿵ṇࢆࡋࡓሙྜ࡟ࠊD⥺᳨ฟຠ⋡ࡀ୍ᐃࡢ್࡜࡞ࡗࡓࠋྠᵝ࡟ࠊI-V
ᐃ࡟࠾ࡅࡿ㏫᪉ྥ㟁ὶࡢ㣬࿴㟁ὶᐦᗘ࡟㛵ࡋ࡚ࡶࠊࢫࢺࣛ࢖ࣉᖜࡢ
ቑຍ࡟క࠺㟁ὶᐦᗘࡢపୗࡀ☜ㄆࡉࢀࠊ᭷ຠ㡿ᇦࡢ⿵ṇ࠿ࡽ㣬࿴㟁ὶᐦᗘࡀ୍ᐃ࡟࡞ࡿࡇ࡜ࡀ☜ㄆࡉࢀࡓࠋࡇࢀࡽࡢ⤖ᯝ࠿ࡽ BGaN ᳨ฟჾ࡟࠾࠸࡚᭷ຠ࡞㟁ᴟࡢ㡿ᇦࡀp ᆺ㟁ᴟ࠿ࡽ⣙30m ௨ෆࡢ㡿ᇦ࡟㏆ఝ࡛ࡁࠊ㟁ᴟᵓ㐀ࡢ᭱㐺໬࡟ࡼࡾ㧗ຠ⋡࡞ᨺᑕ⥺᳨ฟࡀྍ⬟࡛࠶ࡿࡇ࡜ࡀ
♧၀ࡉࢀࡓࠋ ḟ࡟ࠊ୰ᛶᏊ᳨ฟ࡟࠾ࡅࡿࢳࢵࣉࢧ࢖ࢬ౫Ꮡᛶࡢ᳨ドࢆ⾜࠺ࡓࡵ࡟ࠊ
෇ᙧࢹࣂ࢖ࢫ࡟࠾ࡅࡿ୰ᛶᏊ᳨ฟຠ⋡ࡢࢳࢵࣉࢧ࢖ࢬ౫Ꮡᛶࡢࢩ࣑ࣗ
࣮ࣞࢩࣙࣥࢆᐇ᪋ࡋࡓࠋᨺᑕ⥺ࢩ࣑࣮ࣗࣞࢩࣙࣥࢥ࣮ࢻ࡟ࡣ PHITS
Ver.3.08 ࢆ⏝࠸ࡓࠋBGaN ⭷ཌ 7 m ࡢࢹࣂ࢖ࢫࡢࢩ࣑࣮ࣗࣞࢩࣙࣥ⤖ᯝࢆᅗ 3 ࡟♧ࡍࠋB ཎᏊࡀ୰ᛶᏊࢆᤕ⋓ࡍࡿ༢⣧࡞୰ᛶᏊᤕ⋓⋡(ᅗ୰㸸Whole energy)࡟㛵ࡋ࡚ࡣࢳࢵࣉࢧ࢖ࢬ࡟౫Ꮡࡏࡎ୍ᐃࡢ್ࢆ♧ࡋࡓࠋࡋ࠿ࡋ࡞ࡀࡽࠊ୰ᛶᏊᤕ⋓཯ᛂ࡟ࡼࡾ⏕ࡌࡿ 2.3 MeV ࡢⲴ㟁⢏Ꮚࡢ᳨ฟ(ᅗ୰㸸2.3 MeV)࡟㛵ࡋ࡚ࡣࠊࢳࢵࣉࢧ࢖ࢬ 0.001 mm2(┤ᚄ: 37 m)௨ୗ
ࡼࡾ኱ࡁࡃῶᑡࡍࡿࡇ࡜ࡀ☜ㄆࡉࢀࡓࠋࡇࡢ⤖ᯝࡣࠊ୰ᛶᏊᤕ⋓᫬࡟
Ⓨ⏕ࡍࡿ 2.3 MeV ࡢⲴ㟁⢏Ꮚࡢ㣕⛬ࡀ BGaN ⤖ᬗ୰࡛ࡣ⣙ 5 m ࡛࠶ࡾࠊࢳࢵࣉࢧ࢖ࢬࡢᑠᆺ໬࡟క࠸ࢹࣂ࢖ࢫእ㒊࡬㏱㐣ࡍࡿࡇ࡜࡟㉳ᅉࡋ࡚࠸ࡿࠋ
௨ୖࡢ⤖ᯝࡼࡾࠊ୰ᛶᏊ᳨ฟຠ⋡ࡢྥୖ࡟ࡣ BGaN ࢹࣂ࢖ࢫࡢ㟁ᴟᵓ㐀ࡢ᭱㐺໬ࡀ᭷ຠ࡛࠶ࡾࠊp ᆺ㟁ᴟ࠿
ࡽ 30 m ௨ෆࢆ᭷ຠ㡿ᇦ࡜ࡋࡓ n ᆺ㟁ᴟࢧ࢖ࢬࡀ⣙ 40 m ௨ୖࡢࢹࣂ࢖ࢫࡀຠᯝⓗ࡛࠶ࡿ࡜࠸ࡗࡓᣦ㔪ࢆᚓࡓࠋࡋ࠿ࡋ࡞ࡀࡽࠊBN ࣔࣝศ⋡ 1%ࠊ⭷ཌ 7 m ࡢ BGaN ⤖ᬗࢆ⏝࠸ࡓሙྜ࡛࠶ࡾࠊ⡆᫆ⓗ࡞㏆ఝࢆ⏝࠸࡚ᑟฟࢆ⾜ࡗ࡚࠸ࡿࡓࡵࠊヲ⣽࡞ࢹࣂ࢖ࢫࣃ࣓࣮ࣛࢱࡢᑟฟ࡟ࡣ᭦࡞ࡿᐇ㦂ࢹ࣮ࢱࡢ཰㞟࡜ゎᯒࡀᚲせ࡛࠶ࡿࠋ࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ᅜ㝿࣭ᅜෆ఍㆟㸼࣭ᐑ⃝ ⠜ஓࠊኴ⏣ ᝆᩯࠊᯇᕝ ┿ஓࠊᯘ ᖾభࠊ୰ᕝ ኸஓࠊᕝᓮ ᬂஓࠊᏳ⸨ ᝆேࠊᮏ⏣ ၿኸࠊኳ㔝 ᾈࠊᔱ ⣫ᖹࠊᑠᓥ ୍ಙࠊ⛛∗ 㔜ⱥࠊ஭ୖ ⩼ࠊ㟷ᮌ ᚭࠊ୰㔝 ㈗அࠊ“BGaN ୰ᛶᏊ᳨ฟჾ࡟࠾ࡅࡿ⤖ᬗရ㉁࠾
ࡼࡧࢹࣂ࢖ࢫᵓ㐀ࡀ᳨ฟ≉ᛶ࡟୚࠼ࡿᙳ㡪(2)”ࠊ ➨ 68 ᅇᛂ⏝≀⌮Ꮫ఍᫓ᏘᏛ⾡ㅮ₇఍ࠊ18a-Z11-11ࠊ࢜ࣥࣛ࢖ࣥ㛤ദࠊ2021 ᖺ 3 ᭶ 16-19 ᪥࣭ᯇᕝ ┿ஓࠊኴ⏣ ᝆᩯࠊᐑ⃝ ⠜ஓࠊ୰ᕝ ኸஓࠊᕝᓮ ᬂஓࠊᏳ⸨ ᝆேࠊᮏ⏣ ၿኸࠊኳ㔝 ᾈࠊ஭ୖ ⩼ࠊ㟷ᮌ ᚭࠊ୰㔝 ㈗அࠊ“ཌ⭷ BGaN ⤖ᬗᡂ㛗࡟࠾ࡅࡿ GaN ୰㛫ᒙࡢᙳ㡪࠾ࡼࡧࢹࣂ࢖ࢫ≉ᛶホ౯”ࠊ ➨ 68 ᅇᛂ⏝≀⌮Ꮫ఍᫓ᏘᏛ⾡ㅮ₇఍ࠊ18a-Z11-10ࠊ࢜ࣥࣛ࢖ࣥ㛤ദࠊ2021 ᖺ 3 ᭶ 16-19 ᪥157ู⣬ᵝᘧ㸰㸫㸰

GaN ᇶᯈୖ㟁⏺ຠᯝࢺࣛࣥࢪࢫࢱࡢᛶ⬟ホ౯
Evaluation of FET fabricated on GaN substratesᒸ⏣ᡂோ࣭ᒣཱྀ኱Ꮫ኱Ꮫ㝔࣭๰ᡂ⛉Ꮫ◊✲⛉࣭෸ᩍᤵᮧୖᑦ࣭ᮾி㎰ᕤ኱Ꮫ኱Ꮫ㝔࣭ᕤᏛ◊✲㝔࣭෸ᩍᤵఀ⸨ᛅᑑ࣭ᒣཱྀ኱Ꮫ኱Ꮫ㝔࣭๰ᡂ⛉Ꮫ◊✲⛉࣭M2
㔝ᮧಇᩥ࣭ᒣཱྀ኱Ꮫ኱Ꮫ㝔࣭๰ᡂ⛉Ꮫ◊✲⛉࣭M2
᪂⏣ᕞ࿃࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱࢩࢫࢸ࣒◊✲ᡤ࣭≉௵෸ᩍᤵኳ㔝ᾈ࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱࢩࢫࢸ࣒◊✲ᡤ࣭ᩍᤵᮏ⏣ၿኸ࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱࢩࢫࢸ࣒◊✲ᡤ࣭෸ᩍᤵ
ฟ᮶┿ᩯ࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱࢩࢫࢸ࣒◊✲ᡤ࣭෸ᩍᤵ
㸯㸬◊✲┠ⓗ GaN ࡣඃࢀࡓ㟁Ẽⓗ≉ᛶࢆ♧ࡍࡇ࡜࠿ࡽ㸪኱㟁ຊࡢࢹࣂ࢖ࢫᛂ⏝ࡀᮇᚅࡉࢀ࡚࠸ࡿ㸬≉࡟⤯⦕◚ቯ㟁ᅽࡀ 3.3 MV/cm ࡜኱ࡁࡃ㧗⪏ᅽࡢ㟁Ꮚࢹࣂ࢖ࢫࡢᛂ⏝ࡀྍ⬟࡜ࡉࢀ࡚࠸ࡿ㸬≉࡟ AlGaN/GaN ᵓ㐀ࡢ㧗㟁Ꮚ⛣ືᗘࢺࣛࣥࢪࢫࢱ(HEMT)ࡣ GaN ⣔ࡢ㟁Ꮚࢹࣂ࢖ࢫࡢ୰࡛≉࡟ὀ┠ࡉࢀ࡚࠸ࡿࢹࣂ࢖ࢫ࡛࠶ࡿࠋࡇࡢࢹࣂ࢖ࢫࡢ㧗ᛶ⬟໬ࡢࡓࡵ࡟ࡣ㔠ᒓ࡜ AlGaN ࡢ⏺㠃ࡢ᥋ゐ᢬ᢠࢆపῶࡍࡿᚲせࡀ࠶ࡿࠋࡇࡢ᫬ࠊAlGaN ࡢ඲య࡟ప᢬ᢠ
ࡢࡓࡵࡢࢻ࣮ࣃࣥࢺ࡛࠶ࡿ Si ࢆ⏝࠸ࡿ࡜ࠊHEMT ࡢ⛣ືᗘపୗࢆᣍࡃࡓࡵࠊ㔠ᒓ/༙ᑟయ⏺㠃࡟㑅ᢥⓗ࡟ࢻ࣮ࣆࣥࢢࢆ᪋ࡍࡇ࡜ࡀ᭷⏝࡛࠶ࡿࠋ࠿࠿ࡿၥ㢟࡟ᑐࡋ࡚ࠊ࢖࢜ࣥὀ
ධᢏ⾡ࡣ AlGaN ࡢ⭷୰࡟㑅ᢥⓗ࡟ࢻ࣮ࣆࣥࢢࢆ⾜࠺ࡇ࡜ࡀ࡛ࡁࡿࡓࡵࠊ⣲Ꮚࡢᛶ⬟ࢆᦆ࡞ࢃࡎ࡟ࠊAlGaN ࡜ࡢ࣮࣑࢜ࢵࢡ≉ᛶࢆᨵၿࡍࡿࡇ࡜ࡀ࡛ࡁࡿࠋࡋ࠿ࡋ࡞ࡀࡽࠊࡇࢀ
ࡲ࡛ AlGaN ࡟ᑐࡍࡿ Si ࡢ࢖࢜ࣥὀධࡣሗ࿌౛ࡀᑡ࡞ࡃࠊ㑅ᢥⓗ࡞ AlGaN ప᢬ᢠᒙࡢᐇ
⌧࡟ࡣᇶ♏᳨ウࡀᚲせ࡛࠶ࡿࠋࡑࡇ࡛ࠊᮏ◊✲࡛ࡣ AlGaN ࡬ࡢ Si ࢖࢜ࣥὀධ࡜࣏ࢫࢺ
࢔ࢽ࣮ࣝ࡟ࡼࡿ Si άᛶ໬ࢆ⾜࠸ࠊ㑅ᢥⓗప᢬ᢠ AlGaN ࢆస〇ࡍࡿࡇ࡜ࢆ┠ⓗ࡜ࡋࡓࠋ㸰㸬◊✲ෆᐜ࡜ᡂᯝ
2.1 ᮏ◊✲ࡢ◊✲యไᮏඹྠ฼⏝࡛ࡣࠊᮾி㎰ᕤ኱Ꮫ࡟㛤Ⓨࡋࡓ AlN ࢸࣥࣉ࣮ࣞࢺࡢᡂ㛗ᢏ⾡ࢆ࣮࣋ࢫ࡜
ࡋࠊᒣཱྀ኱Ꮫ࡟࡚ AlGaN ᒙࢆᡂ㛗ࡋࠊྡྂᒇ኱Ꮫ࡟࡚ Si ࢖࢜ࣥὀධࢆ⾜ࡗࡓࠋ2.2 AlGaN࡬ࡢSi࢖࢜ࣥὀධ
Al ᴟᛶ࡜ N ᴟᛶ࡛ẚ㍑ࢆ⾜࠺ࡓࡵ࡟ࠊAl ᴟᛶ㠃 AlN ࡢࢸࣥࣉ࣮ࣞࢺ࡜ N ᴟᛶ㠃 AlN
ࢸࣥࣉ࣮ࣞࢺࢆࡑࢀࡒࢀᡂ㛗ᚋࠊAlGaN ࢆ෌ᡂ㛗ࡋࡓࠋAlGaN ࢆᡂ㛗 ᗘ 1050 °CࠊNᴟᛶ㠃 AlGaN ࡢሙྜࡢ Al ྵ᭷㔞ࢆ࠾ࡼࡑ 40%ࠊ30%ࠊ20%ࠊ70%࡜࡞ࡿࡼ࠺࡟ࠊTMA
࡜ TMG ࡢὶ㔞ࢆኚ᭦ࡋ࡚ࠊ6 ศ㛫ᡂ㛗ࡋࡓࠋSi ࢖࢜ࣥὀධࡢ㝿࡟ࠊAlGaN ᒙࡢ Si ୙⣧≀⃰ᗘࡀ 1018 atoms/cm3 ࡜ 1019 atoms/cm3 ྎ࡟࡞ࡿࡼ࠺࡟ࠊ῝ࡉ 100~200 nm ࡲ࡛ Si ࢆࢻ
࣮ࢬࡋࡓࠋ

158

2.3 Si࢖࢜ࣥὀධᚋࡢAlGaNᒙࡢ࢔ࢽ࣮ࣝ

ᗘ౫Ꮡᛶ࢖࢜ࣥὀධࢆ⾜ࡗࡓࢧࣥࣉࣝࡢ୍㒊ࢆ❅⣲㞺ᅖẼ୰࡟࠾࠸࡚ࠊ30 ⛊㛫ࠊ࢔ࢽ࣮ࣝ ᗘ
1200°C ࠾ࡼࡧ 1100°C ࡛ຍ⇕ฎ⌮ࢆ⾜ࡗࡓࠋᅗ 1 ࡟ XRDᐃ࡟ࡼࡿࠊSi ࢖࢜ࣥὀධࡋ

ࡓ AlGaN ࡢ c ㍈ࡢ᱁Ꮚᐃᩘ c ࡢ࢔ࢽ࣮ࣝ౫Ꮡᛶࢆ♧ࡍࠋᅗ୰ࡢ㉥ⰍࡢⅬ⥺ࡣᡂ㛗ᚋࡢ N
ᴟᛶ㠃 AlGaN ࡢ c ㍈᱁Ꮚᐃᩘ್ࠊ㯮ⰍࡢⅬ⥺ࡣᡂ㛗ᚋࡢ Al ᴟᛶ㠃 AlGaN ࡢ c ㍈᱁Ꮚᐃᩘ್ࢆ♧ࡋ࡚࠸ࡿࠋAl ⤌ᡂࡀ 20㹼30%ࡢ AlGaN ࡛ࡣࠊSi ࢖࢜ࣥὀධᚋࡢ᱁Ꮚᐃᩘࡢ
ࡎࢀࡣ Al ᴟᛶࡢ᪉ࡀ኱ࡁ࠿ࡗࡓࠋࡋ࠿ࡋࠊ1100°C ௨ୖ࡛࢔ࢽ࣮ࣝࡍࡿࡇ࡜࡛ࠊ࢖࢜ࣥ
ὀධ๓ࡢ AlGaN ࡢ c ㍈᱁Ꮚᐃᩘ್࡟ኚ໬ࡋࡓࠋࡲࡓࠊᡂ㛗ᚋࡢ AlGaN ࡢ c ㍈᱁Ꮚᐃᩘ್ࡼࡾࠊ࢔ࢽ࣮ࣝᚋࡢ c ㍈᱁Ꮚᐃᩘ್ࡀୗᅇࡿࢧࣥࣉࣝࡶ࠶ࡿࠋࡇࢀࡣᐇ㝿ࡢᡂ㛗 ᗘࡣࢧࣥࣉࣝ୰ᚰ㒊࡜➃㒊࡛ࡸࡸ␗࡞ࡿࡓࡵࠊᡂ㛗ᚋ࡛ Al ྵ᭷㔞࡟㐪࠸ࡀ⏕ࡌࡓ࡜⪃࠼ࡽࢀࡿࠋࡲࡓࠊAl ⤌ᡂࡀ 70%࡟࡞ࡿ࡜ࠊN ᴟᛶࡢ᪉ࡀ Al ᴟᛶࡼࡾࡶࠊ࢖࢜ࣥὀධᚋࡢ
c ㍈᱁Ꮚᐃᩘࡢኚ໬㔞ࡀ኱ࡁ࠿ࡗࡓࠋࡲࡓࠊ࢔ࢽ࣮ࣝࡋ࡚ࡶࠊc ㍈᱁Ꮚᐃᩘ್ࡀᡂ㛗ᚋࡢ್࡟ᡠࡽ࡞࠸ࡇ࡜࠿ࡽࠊSi ࢖࢜ࣥὀධ࡟ࡼࡿ⤖ᬗࢲ࣓࣮ࢪࡀᅇ᚟ࡋ࡚࠸࡞࠸ྍ⬟ᛶࡀ⪃࠼ࡽࢀࡿࠋSi ࢖࢜ࣥὀධᚋࠊ࢔ࢽ࣮ࣝࡍࡿࡇ࡜࡛ III ᪘ཎᏊ✵Ꮝ࡟ Si ཎᏊࡣඃඛⓗ࡟⨨᥮ࡉࢀࡿࠋࡇࢀ࡟ࡼࡾࠊAlGaN ᒙࡣ n ᆺ໬ࡉࢀࡿࠋࡑࡢ㝿ࠊAl-N ࡢ⤖ྜ࢚ࢿࣝࢠ࣮
࡜ Ga-N ࡢ⤖ྜ࢚ࢿࣝࢠ࣮ࢆẚ㍑ࡍࡿ࡜ࠊAl-N ࡢ⤖ྜ࢚ࢿࣝࢠ࣮ࡢ᪉ࡀ኱ࡁ࠸ࠋࡑࡢࡓ
ࡵࠊSi ཎᏊࡣ Ga ✵Ꮝ࡟⨨᥮ࡉࢀࡸࡍ࠸ࠋࡋ࠿ࡋࠊAl ྵ᭷㔞ࡢከ࠸ AlGaN ᒙࡣᑡ࡞࠸
࡜ࡁࢆẚ࡭ࡿ࡜ࠊྠࡌ⇕࢚ࢿࣝࢠ࣮࡛ࡣ Si ཎᏊࡀ⨨᥮࡛ࡁࡿᩘࡀᑡ࡞ࡃ࡞ࡿࠋࡑࡢࡓ
ࡵࠊAl ⤌ᡂࡀ 70%ࡢ AlGaN ࡢ
ࡳ 1200°C ࡛࢔ࢽ࣮ࣝࡋ࡚ࡶࠊ
࢖࢜ࣥὀධࡉࢀࡓ Si ཎᏊࡣ Si
ࡀϪ᪘ࢧ࢖ࢺ࡟཰ࡲࡽࡎࠊ
interstitial ➼ࡢḞ㝗࡜ࡋ࡚ṧ␃ࡋࡓ⤖ᯝ࡛࠶ࡿ࡜⪃࠼ࡽࢀࡿࠋ
࢖࢜ࣥὀධ᫬ࡢḞ㝗ࡢⓎ⏕ࡣ
AlGaN ࡢ Al ⤌ᡂ 50%ࢆ㉸࠼ࡿ࡜ῧຍࡍࡿ୙⣧≀⃰ᗘ࡜࡜ࡶ࡟ቑຍࡍࡿࡇ࡜ࡀሗ࿌ࡉࢀ࡚
࠸ࡿࠋࡑࡢࡓࡵࠊ࢔ࢽ࣮ࣝᚋ
ࡶ࢖࢜ࣥὀධ࡟ࡼࡗ࡚Ⓨ⏕ࡋࡓ⤖ᬗḞ㝗ࡣ᏶඲ᅇ᚟ࡋ࡙ࡽ
ࡃ࡞ࡿࠋࡇࢀࡣࠊ௒ᅇࡢ⤖ᯝ࡜

ᅗ 1 Si ࢖࢜ࣥὀධࡋࡓ AlGaN ࡢ c ㍈᱁Ꮚᐃᩘࡢ࢔

୍⮴ࡋࡓഴྥ࡛࠶ࡿࠋ

ࢽ࣮ࣝ౫Ꮡᛶ

࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ཎⴭㄽᩥ㸼 ≉࡟࡞ࡋ㸺ᅜ㝿࣭ᅜෆ఍㆟㸼 ≉࡟࡞ࡋ㸺⏘ᴗ㈈⏘ᶒ㸼 ≉࡟࡞ࡋ159

ู⣬ᵝᘧ㸰㸫㸰

SiC ⤖ᬗෆࡢᇶᗏ㠃㌿఩㐠ືไᚚ
Motion control of basal plane dislocations in SiC crystalsຍ⸨ṇྐ࣭ྡྂᒇᕤᴗ኱Ꮫ࣭኱Ꮫ㝔ᕤᏛ◊✲⛉࣭෸ᩍᤵᏱ἞ཎᚭ࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ࣭ᩍᤵཎ⏣ಇኴ࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ࣭෸ᩍᤵ  㸯㸬◊✲┠ⓗ SiC ⤖ᬗ࡟ࡼࡿࣃ࣮༙࣡ᑟయ⣲Ꮚࡣࠊ㟁㌴࡞࡝ࡢ㥑ື᫬ࡢ┬࢚ࢿࢆᐇ⌧ࡍࡿ࣮࢟ࢹࣂ
࢖ࢫ࡜ࡋ࡚ᮇᚅࡉࢀ࡚࠾ࡾࠊᬑཬࡀጞࡲࡗ࡚࠸ࡿࠋࡲࡓ୍᪉࡛ SiC ࡢ࣏ࢸࣥࢩࣕࣝࢆ⪃៖ࡍࡿ࡜ࠊࡉࡽ࡞ࡿ┬࢚ࢿຠᯝࢆ᭷ࡍࡿࠊ㟁ຊ⣔⤫ྥࡅࡢࣃ࣮༙࣡ᑟయ⣲Ꮚ࡬ࡢᛂ⏝ࡀᮇᚅࡉࢀ࡚࠸ࡿࠋࡓࡔࡋ SiC ⤖ᬗ୰ࡢ㌿఩ᐦᗘࡣ Si ⤖ᬗ࡟ẚ࡭࡚㧗ࡃࠊࡑࡢᙳ㡪࡛⣲Ꮚࡢಙ㢗ᛶࡀ༑ศ࡟☜ಖ࡛ࡁ࡚࠸࡞࠸ࠋ㌿఩ࡢ୰࡛ࡶ≉࡟ᇶᗏ㠃㌿఩ࡣ⣲Ꮚࡢືస୰࡟
㐠ືࡋ✚ᒙḞ㝗ࢆᗈࡆࠊᗈࡀࡗࡓ✚ᒙḞ㝗ࡀ⣲Ꮚࡢᛶ⬟ࢆຎ໬ࡉࡏࡿࡇ࡜ࡀ▱ࡽࢀ࡚࠸ࡿࠋ✚ᒙḞ㝗ࡢᣑᙇ࡜࠸࠺ㄢ㢟ࡣࠊ㟁ຊ⣔⤫࡟ᚲせ࡜࡞ࡿ⪏ᅽᩘ kV ௨ୖࡢ⣲Ꮚ࡟ᑐࡋ࡚ࠊ⮴࿨ⓗ࡞ᙳ㡪ࢆ୚࠼ࡿࠋࡋࡓࡀࡗ࡚㌿఩ࡢ㐠ືࢆᢚไࡋࠊ⣲Ꮚࡢಙ㢗ᛶࢆ☜ಖࡍࡿᢏ⾡ࡀồࡵࡽࢀ࡚࠸ࡿࠋᮏ◊✲࡛ࡣࠊᇶᗏ㠃㌿఩ࡢ㐠ືࡢᶵᵓࢆ⌮ゎࡋࠊࡑࡢไᚚᢏ⾡ࢆ☜❧ࡍࡿࠋࡑࢀ࡟ࡼࡾ᭱⤊ⓗ࡟ࠊ✚ᒙḞ㝗ࡢᣑᙇ࡟ࡼࡿ⣲Ꮚຎ໬ࡢ࡞࠸ SiC ⤖ᬗࢆᚓࡿࠋᮏ◊✲࡟ࡼࡾ SiC ⤖ᬗࡢ✚ᒙḞ㝗ࡢᣑᙇࡀᢚไ࡛ࡁࢀࡤࠊSiC ⣲Ꮚ࡟ࡼࡿ┬࢚ࢿࣝࢠ࣮ᢏ⾡ࡢᐇ⌧࡟⧅ࡀࡿ㸰㸬◊✲ෆᐜ࡜ᡂᯝ ヨᩱࡣࠊࣂࣝࢡ 4H-SiC <1-100>᪉ྥ࡟㸲ᗘ࢜ࣇࡉࡏࡓ㸦0001㸧㠃ᇶᯈ࡟⭷ཌ 10 Pmࠊ
ࢻ࣮ࣆࣥࢢ⃰ᗘ 1016 cm-3 ࡢ 4H-SiC ࢚ࣆ⭷ࢆᡂ㛗ࡉࡏࡓヨᩱ㸦௨ୗࠊⷧ⭷ヨᩱ㸧࡜ࠊཌ
ࡉ 150 Pmࠊࢻ࣮ࣆࣥࢢ⃰ᗘ 1015 cm-3 ࡢ 4H-SiC ⮬❧࢚ࣆ⭷ࡢヨᩱ㸦௨ୗࠊཌ⭷ヨᩱ㸧࡛࠶ࡿࠋࡑࢀࡽࡢヨᩱ࡟ᑐࡋ࡚ࠊ࢖࢜ࣥὀධ࡟ࡼࡾ୙⣧≀ࡢᑟධࢆ⾜ࡗࡓࠋࡇࡇ࡛ヨᩱࢆ」ᩘࡢࣆ࣮ࢫ࡟ศ๭ࡋࠊࡑࢀࡽ࡟ᑟධࡍࡿ୙⣧≀ࡢ㔞ࢆኚ໬ࡉࡏࡿࡇ࡜࡛ࠊ୙⣧≀ᑟධ㔞౫Ꮡᛶࡢ᳨ウࢆ⾜ࡗࡓࠋⷧ⭷ヨᩱ࡟ᑐࡋ࡚ࡣࠊᇶᗏ㠃㌿఩ࡢᏑᅾࡍࡿ఩⨨࡟ᑐࡋ࡚ࠊ⣸እග(UV)ࢆ↷ᑕࡍࡿࡇ࡜࡛㟁ᏊṇᏍᑐࢆᑟධࡋࠊᇶᗏ㠃㌿఩ࢆ㐠ືࡉࡏࡓࠋࡑࡋ࡚ࠊUV ↷ᑕ๓ᚋ࡟࠾࠸࡚ X⥺ࢺ࣏ࢢࣛࣇ࢕ほᐹࢆࡍࡿࡇ࡜࡟ࡼࡾᇶᗏ㠃㌿఩ࡢ㐠ືࢆㄪᰝࡋࡓࠋX ⥺ࢺ࣏ࢢࣛࣇ࢕
ࡢ᮲௳ࡣࠊᅇᢡゅ 2ȟ㸸100.9rࠊᅇᢡ㠃㸸(11-28)ࠊX ⥺࢚ࢿࣝࢠ࣮㸸8.25~8.29 keVࠊධᑕゅ㸸11.2rࡢ཯ᑕ᮲௳࡛࠶ࡿࠋ཯ᑕ X ⥺ࡣཎᏊ᰾஝ᯈ࡟ࡼࡾ᧜ᙳࡋࡓࠋ୍᪉ࠊཌ⭷ヨᩱ࡟ᑐࡋ࡚ࡣἼ㛗 355 nm ࡢບ㉳࣮ࣞࢨ࣮࡜ࠊ10 GHz ࡢ࣐࢖ࢡࣟἼࢆ⏝࠸ࡓ࣐࢖ࢡࣟἼ
ගᑟ㟁ῶ⾶(P-PCD)ἲ࡟ࡼࡿ࢟ࣕࣜ࢔ᑑ࿨

ᐃࢆ⾜ࡗࡓࠋ ⷧ⭷ヨᩱ࡟ᑐࡍࡿ X ⥺ࢺ࣏ࢢࣛࣇ࢕ ᐃࡢ⤖ᯝࠊᅗ㸯(a)ࡢ㉥୸࡟♧ࡍࡼ࠺࡟୙⣧≀ᑟධ㔞ࡀపࡍࡂࡿ࡜ᇶᗏ㠃㌿఩ࡀ✚ᒙḞ㝗࡬࡜ᣑᙇࡋࡓࠋ୙⣧≀ᑟධ㔞ࢆቑຍࡉࡏࡿ࡜ࠊ

160

ᅗ㸯(b)ࡢ㉥୸࡟♧ࡍࡼ࠺࡟✚ᒙḞ㝗ࡣᣑᙇࡋ࡞࠿ࡗࡓࠋ ཌ⭷ヨᩱ࡟ᑐࡍࡿP-PCDᐃࡢ⤖ᯝࠊᅗ㸰࡟♧ࡍࡼ࠺࡟✚ᒙḞ㝗ࡢᣑᙇࡢ࡞࠸ᑟධ㔞࡟࠾࠸࡚ࡶࠊᑟධ㔞ࢆ኱ࡁࡃቑຍࡉࡏ࡞ࡅࢀࡤ࢟ࣕࣜ࢔ᑑ࿨࡬ࡢᙳ㡪ࡀ࡞࠸㡿ᇦࡀᏑᅾࡋࡓࠋࡋࡓࡀࡗ࡚ࠊ࢟ࣕࣜ࢔ᑑ࿨࡟ࡶᙳ㡪ࢆ୚࠼ࡎࠊ✚ᒙḞ㝗ࡢᣑᙇࢆᢚไྍ⬟࡞୙⣧≀ᑟධᢏ⾡ࡀ☜❧࡛ࡁࡓࠋ ௒ᚋࡣࡇࡢᢏ⾡ࢆ▱㈈໬ࡍࡿ࡜࡜ࡶ࡟ࠊᣑᙇࡀᢚไࡉࢀࡓ࣓࢝ࢽࢬ࣒࡟ࡘ࠸࡚ࡼࡾヲ⣽࡟᳨ウࡋ࡚࠸ࡃࠋ㠀බ㛤ᅗ㸯(a) ୙⣧≀ᑟධ㔞ࡀప࠸ヨᩱ࡟ᑐࡍࡿ⣸እ⥺↷ᑕᚋࡢ X ⥺ࢺ࣏ࢢࣛࣇ࢕ീࠊ(b) ୙⣧≀ᑟධ㔞ࢆቑຍࡉࡏࡓヨᩱ࡟ᑐࡍࡿ⣸እ⥺↷ᑕᚋࡢ X ⥺ࢺ࣏ࢢࣛࣇ࢕ീ㠀බ㛤ᅗ㸰 ࢟ࣕࣜ࢔ᑑ࿨ࡢ୙⣧≀ᑟධ㔞౫Ꮡᛶ࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸦SW ࢦࢩࢵࢡయ㸧㸺⏘ᴗ㈈⏘ᶒ㸼≉チ⏦ㄳ‽ഛ୰

161ู⣬ᵝᘧ㸰㸫㸰ࢼࣀࢫࢣ࣮ࣝ࿘ᮇᵓ㐀ࢆ᭷ࡍࡿ⮬↛㉸᱁Ꮚ㓟໬ࢳࢱࣥࡢ⇕㍺㏦≉ᛶホ౯
Evaluation of thermal conductivity of natural superlattice titanium oxideඵᮌ ㈗ᚿ ⏘ᴗᢏ⾡⥲ྜ◊✲ᡤ ୺௵◊✲ဨཎ⏣ ಇኴ ྡྂᒇ኱Ꮫ ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ ෸ᩍᤵ㸯㸬◊✲┠ⓗࢼࣀࢫࢣ࣮ࣝ࿘ᮇᵓ㐀࡟ࡼࡿࢥࣄ࣮ࣞࣥࢺࣇ࢛ࣀࣥࡢไᚚ࡟ࡼࡗ࡚ࠊࣇ࣮ࣜ
࢚ࡢἲ๎࡟ᚑ࠺ᣑᩓⓗ࡞ᥥീ࡜ࡣ␗࡞ࡿࠊ㧗ᗘ࡞⇕㍺㏦ไᚚࡢᐇ⌧ࡀᮇᚅࡉࢀ
࡚࠸ࡿ[1]ࠋࢥࣄ࣮ࣞࣥࢺ࡞⇕ఏᑟไᚚ࡟ྥࡅ࡚ࠊேᕤ㉸᱁Ꮚⷧ⭷ࢆ⏝࠸ࡓ◊✲ࡀ࠾ࡇ࡞ࢃࢀ࡚࠸ࡿ[2]ࠋᐊ ࡟࠾࠸࡚⇕㍺㏦࡟ᐤ୚ࡍࡿ THz ࣮࢜ࢲ࣮ࡢࣇ࢛ࣀࣥ
ࢆࢼࣀ࣭ࢧࣈࢼࣀ࣓࣮ࢺࣝࢫࢣ࣮ࣝࡢ࿘ᮇᵓ㐀࡛ไᚚࡍࡿࡓࡵ࡟ࡣࠊ⏺㠃࡟࠾࠸࡚ཎᏊࢫࢣ࣮ࣝࡢ᏶඲ᛶࡀᚲせ࡜࡞ࡿࡀࠊࡇࡢࡼ࠺࡞᏶඲ᛶࡢ㧗࠸⏺㠃ࢆᚓࡿࡇ࡜ࡣᴟࡵ࡚㞴ࡋ࠸ࠋࡑࡇ࡛ᡃࠎࡣࠊࢩ࢔࣮ᵓ㐀࡜࿧ࡤࢀࡿ㠃Ḟ㝗࿘ᮇ㓄ิࢆྵࡴ⮬↛㉸᱁Ꮚ㓟໬ࢳࢱࣥ⤖ᬗ࡟╔┠ࡋ࡚࠸ࡿࠋࡇࢀࡲ࡛࡟㉮ᰝ㏱㐣㟁Ꮚ㢧ᚤ㙾࡟ࡼࡿཎᏊ㓄ิ┤᥋ほᐹࡢ⤖ᯝ࠿ࡽࠊ3 nm ࡢ㛫㝸࡛࿘ᮇ㓄ิࡋࡓ㠃Ḟ㝗ࡢ᭷ຠ⏺㠃⢒ࡉࡀ 0.018 nm ࡛࠶ࡾࠊࣝࢳࣝᆺ TiO2 ࡟࠾ࡅࡿ࡯࡜ࢇ࡝඲࡚ࡢ᱁Ꮚ
᣺ື࡟ᑐࡋ࡚ࠊࢥࣄ࣮ࣞࣥࢺ࡞⏺㠃࡛࠶ࡿࡇ࡜ࢆ☜ㄆࡋ࡚࠸ࡿ[3]ࠋᮏ◊✲࡛ࡣࠊ᏶඲ᛶࡢ㧗࠸࿘ᮇ⏺㠃ࢆྵࡴ⮬↛㉸᱁Ꮚ㓟໬ࢳࢱࣥ⤖ᬗࡢ⇕ఏᑟ⋡ࡢ࿘ᮇ౫Ꮡ
ᛶࢆㄪ࡭ࡓࠋ
㸰㸬◊✲ෆᐜ࡜ᡂᯝ
┿✵୰࡛ࡢ㑏ඖ⇕ฎ⌮࡟ࡼࡗ࡚స〇ࡋࡓ㠃Ḟ㝗ࡢ㛫㝸ࡀ 3 nm ࡛࠶ࡿ஧ඖ⣔⮬↛㉸᱁Ꮚ㓟໬ࢳࢱࣥ㸦Binary NSL㸧࡜ࠊගᏛᘧᾋ㐟ᖏᇦ⁐⼥ἲ࡟ࡼࡾ⫱ᡂࡋࡓ㠃Ḟ㝗ࡢ㛫㝸ࡀ 1 nm ࡛࠶ࡿ Cr ῧຍ⮬↛㉸᱁Ꮚ㓟໬ࢳࢱࣥ㸦Cr doped NSL㸧ࡢࠊ[100]rutile ࡢ⇕ఏᑟ⋡ࢆࠊ᫬㛫㡿ᇦࢧ࣮ࣔࣜࣇࣞࢡࢱࣥࢫ㸦TDTR㸧ἲ࡟ࡼࡾ ᐃࡋࡓࠋ
TDTR ἲ࡟ࡼࡿ⇕ఏᑟ⋡ࡢ ᗘ౫Ꮡᛶࢆ ᐃࡋࡓ⤖ᯝࠊ㠃Ḟ㝗ᑟධ࡟ࡼࡿ⇕ఏᑟ⋡ࡢపୗࡣࠊᐊ ௨ୗࡢప ࡟࠾࠸࡚㢧ⴭ࡛࠶ࡿࡀࠊ ᗘࡢቑຍ࡜࡜ࡶ࡟
ᑠࡉࡃ࡞ࡾࠊ300Υ࡛ࡣ TiO2 ࡜⮬↛㉸᱁Ꮚࡣ࡯ࡰྠࡌ⇕ఏᑟ⋡࡜࡞ࡗࡓࠋࡇࡢ
ࡇ࡜ࡣᐊ ௨ୗࡢ ᗘ࡛ࡣࠊ⇕㍺㏦࡟㛵୚ࡍࡿࣇ࢛ࣀࣥࡢ⮬⏤⾜⛬㊥㞳ࡀ㠃Ḟ㝗࿘ᮇ࡟ᑐࡋ࡚㛗࠸ࡇ࡜ࢆ♧ࡋ࡚࠸ࡿࠋࡲࡓࠊ㠃Ḟ㝗ࡢ࿘ᮇࡀ␗࡞ࡿ⮬↛㉸᱁Ꮚ⤖ᬗࡢ⇕ఏᑟ⋡ࢆẚ㍑ࡍࡿ࡜ࠊ࿘ᮇࡀ▷࠸ࠊࡍ࡞ࢃࡕ㠃Ḟ㝗ࡢᐦᗘࡀ㧗࠸᪉ࡀ⇕ఏᑟ⋡ࡣ㧗࠿ࡗࡓࠋࡇࢀࡣࠊ㠃Ḟ㝗࡟ࡼࡾࣇ࢛ࣀࣥᩓ஘ࡀᩓ஘ࡉࢀࡿ࡜࠸
࠺⢏Ꮚⓗ࡞ᥥീࡔࡅ࡛ࡣㄝ᫂ࡀ࡛ࡁࡎࠊࣇ࢛ࣀࣥࣂࣥࢻࢠࣕࢵࣉࡢᙧᡂ࡟ࡼࡿ
⩌㏿ᗘࡢపୗ࡞࡝ࠊࢥࣄ࣮ࣞࣥࢺࣇ࢛ࣀࣥ࡟ࡼࡿຠᯝࡀ㢧ᅾࡋ࡚࠸ࡿ࡜⪃࠼ࡽ
ࢀࡿࠋ

162

ཧ⪃ᩥ⊩
[1] M. Maldovan, Nature, 503 (2013) 209.
[2] J. Ravichandran et al., Nature Mat., 13 (2014) 168.
[3] S. Harada et al., ACS Nano submitted.

࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ᅜ㝿࣭ᅜෆ఍㆟㸼ヱᙜ࡞ࡋ㸺⏘ᴗ㈈⏘ᶒ㸼ヱᙜ࡞ࡋ163ู⣬ᵝᘧ㸰㸫㸰❅໬࣒࢞ࣜ࢘࡟࠾ࡅࡿ⤖ᬗᵓ㐀ࡢභ᪉ᬗ࠿ࡽࡢࢬࣞࡢᐃ㔞໬Structural deviation of hexagonal gallium nitrideሯᮏ ຾⏨ ኱㜰኱Ꮫ኱Ꮫ㝔 ᕤᏛ◊✲⛉ ᣍ⪸ᩍᤵཎ⏣ ಇኴ ྡྂᒇ኱Ꮫ ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ ෸ᩍᤵ㸯㸬◊✲┠ⓗ❅໬࣒࢞ࣜ࢘㸦GaN㸧ࡣࠊ㟷Ⰽ LEDࠊ࣮ࣞࢨ࣮ࢲ࢖࣮࢜ࢻࢆጞࡵ࡜ࡍࡿⓎග⣲Ꮚࡢ୺せᮦᩱ࡛࠶ࡾࠊගࢹࣂ࢖ࢫࠊࣃ࣮࣡ࢹࣂ࢖ࢫࠊ㧗࿘Ἴࢹࣂ࢖ࢫ࡞࡝ࠊ
ከࡃࡢࢹࣂ࢖ࢫ࡬ࡢᛂ⏝ࡀᮇᚅࡉࢀ࡚࠸ࡿࠋᡃࠎࡣࠊGaN(0001)ᇶᯈ⤖ᬗࡢගᏛ୺㍈ศᕸᐃࢆึࡵ࡚⾜ࡗࡓ࡜ࡇࢁࠊගᏛ୺㍈᪉఩ࡀ኱ࡁࡃ␗࡞ࡿࢻ࣓࢖ࣥࢆ

ྵࡴࡇ࡜ࢆぢฟࡋࡓࠋᇶᯈ୰࡟ࡣ୺㍈᪉఩ࡀ␗࡞ࡿ㡿ᇦࡀࢻ࣓࢖ࣥࢆᙧᡂࡋ࡚
࠾ࡾࠊ኱ࡁࡃศࡅࡿ࡜୺㍈᪉఩ࡀ␗࡞ࡿ 3 ࡘࡢ㡿ᇦࡀᏑᅾࡍࡿࠋࡘࡲࡾ୺㍈᪉఩࡛࠶ࡿභ᪉ᬗࡢ c ㍈ࡀ 3 ࡘࡢ␗࡞ࡿ᪉ྥ࡟ഴ࠸ࡓࢻ࣓࢖ࣥࡀᏑᅾࡍࡿࡇ࡜ࡀ
♧၀ࡉࢀࡿࠋᇶᯈ୰࡟✚ᒙḞ㝗ࡀᏑᅾࡋ࡞࠸ࡇ࡜ࢆ⪃៖ࡍࡿ࡜ࠊࡇࢀࡽࡢගᏛ
୺㍈ࡣභ᪉ᬗࡢ c ㍈࡜ᖹ⾜୍࡛㍈ᛶ⤖ᬗ࡛࠶ࡿࡣࡎ࡛࠶ࡿࡀࠊ⌧ᐇ࡟ࡣ c ㍈࠿ࡽ
30 ᗘࡶࡎࢀࡓ஧㍈ᛶ⤖ᬗ࡛࠶ࡾࠊභ᪉ᬗ࡛ࡣ࡞࠸ࡇ࡜ࢆ♧ࡋ࡚࠸ࡿࠋࡇࡢ⤖ᯝ࠿ࡽࠊ༢ᩳᬗ⣔ Cm ࡼࡾࡶᑐ⛠ᛶࡀప࠸࡜⪃࠼ࡽࢀࡿࠋᮏ◊✲࡛ࡣࠊගᏛ୺㍈ศᕸᐃ࡜ X ⥺࣭㟁Ꮚ⥺ᅇᢡ࡟ࡼࡾ c ㍈࠿ࡽࡢࢬࣞ࡜ࡋ࡚⌧ࢀࡿ GaN ࡢࠕ㠀භ᪉ᬗᛶࠖࢆᐃ㔞໬ࡋࠊྂࡃ࠿ࡽභ᪉ᬗ࡛࠶ࡿ࡜ಙࡌࡽࢀ࡚࠸ࡿ GaN ࡢࠕ┿ࠖࡢ⤖ᬗᵓ㐀ࢆỴᐃࡍࡿࡇ࡜ࢆ┠ⓗ࡜ࡋࠊేࡏ࡚ࠊྂࡃ࠿ࡽ▱ࡽࢀ࡚࠸ࡿගᏛ␗ᖖࡢ
ཎᅉࢆ᪂ࡓ࡞ᡭἲ࡛ㄪ࡭ࡿࡇ࡜ࢆ┠ⓗ࡜ࡋ࡚࠸ࡿࠋ

㸰㸬◊✲ෆᐜ࡜ᡂᯝ
ගᏛ␗ᖖࢆᐃ㔞໬ࡍࡿࡓࡵ࡟ࠊX ⥺࣭㟁Ꮚ⥺ᅇᢡࡢゎീᗘࢆྥୖࡉࡏࡿ᪉ἲ
࡜ࡋ࡚ࠊ࣋࢖ࢬ᥎ᐃࢆ⏝࠸ࡓ㉸ゎീࡢ㐺ᛂࡢ᳨ウࢆ⾜ࡗࡓࠋ࣋࢖ࢬ㉸ゎീ࡛ࡣࠊࢧࣈࣆࢡࢭࣝࡢࢩࣇࢺࢆྵࡴ」ᩘᯛࡢ⏬ീࡢࠊࢩࣇࢺ㔞ࢆ࣋࢖ࢬ᥎ᐃ࡟ࡼࡗ࡚

164

᥎ᐃࡋࠊゎീᗘࢆྥୖࡉࡏࡿ᪉ἲ࡛࠶ࡿࠋࡇࡢ᫬ࠊ஦๓ศᕸ☜⋡࡜ࡋ࡚ࠊ࢞࢘
ࢫศᕸࢆ⏝࠸ࡿࡇ࡜࡛⏬ീࡢᛴᓧ࡞ኚ໬ࡀ࡞࠸࡜࠸࠺௬ᐃࡢୗ࡛㉸ゎീࢆ⾜ࡗࡓࠋ⣙ 10,000 ࡢ X ⥺ᅇᢡീࢆྲྀᚓࡋࠊ88 ಸࡢ㉸ゎീࢆ⾜࠺ࡇ࡜࡟ᡂຌࡋࡓࠋ
௒ᚋࠊᮏᖺᗘ࡟☜❧ࡋࡓ᪉ἲࢆ GaN ࡢ X ⥺࣭㟁Ꮚ⥺ᅇᢡࢹ࣮ࢱ࡟ᛂ⏝ࡋࠊ⌮᝿ᵓ㐀࠿ࡽࡢࡎࢀࢆᐃ㔞໬ࡍࡿணᐃ࡛࠶ࡿࠋ

࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ᅜ㝿࣭ᅜෆ఍㆟㸼ヱᙜ࡞ࡋ㸺⏘ᴗ㈈⏘ᶒ㸼
ヱᙜ࡞ࡋ

165



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ู⣬ᵝᘧ㸰㸫㸰㠀⥺ᙧගᏛࢹࣂ࢖ࢫࡢస〇࡜ࡑࡢᛂ⏝Fabrication of nonlinear optical devices and their application㇂ᕝᬛஅ࣭኱㜰኱Ꮫ࣭኱Ꮫ㝔ᕤᏛ◊✲⛉࣭෸ᩍᤵ∦ᒣ❳஧ ኱㜰኱Ꮫ࣭኱Ꮫ㝔ᕤᏛ◊✲⛉࣭ᩍᤵỌ⏣ᣅᐇ ኱㜰኱Ꮫ࣭኱Ꮫ㝔ᕤᏛ◊✲⛉࣭኱Ꮫ㝔⏕ᱵ⏣㣁ᚿ ኱㜰኱Ꮫ࣭኱Ꮫ㝔ᕤᏛ◊✲⛉࣭኱Ꮫ㝔⏕ฟ᮶┿ᩯ ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱࢩࢫࢸ࣒◊✲ᡤ࣭ຓᩍ㸯㸬◊✲┠ⓗ ❅໬≀༙ᑟయࡣࠊ㧗࠸ගᏛ㠀⥺ᙧᛶ࡜ගᦆയ⪏ᛶࢆ᭷ࡍࡿࡓࡵࠊ㧗ຠ⋡࡞Ἴ㛗ኚ᥮ࢹࣂ࢖ࢫࡢᐇ⌧ࡀᮇᚅ࡛ࡁࡿᮦᩱ࡛࠶ࡿࠋ㏆ᖺࠊ་⒪᧜ീศ㔝࡟࠾࠸࡚ࠊἼ㛗ኚ᥮ᢏ⾡ࡢ୍ࡘ࡛࠶ࡿ⮬Ⓨⓗࣃ࣓ࣛࢺࣜࢵࢡୗ᪉ኚ᥮㸦SPDC㸧ࢆ฼⏝ࡋ࡚Ⓨ⏕ࡉࢀࡓᗈᖏᇦගᏊ
ᑐࡢ㔞Ꮚගᖸ΅᩿ᒙ᧜ᙳᢏ⾡㸦QOCT㸧࡬ࡢᛂ⏝ࡀᮇᚅࡉࢀ࡚࠸ࡿࠋGaN ᚤᑠඹ᣺ჾࢹ
ࣂ࢖ࢫࡣࠊ⣲Ꮚ㡿ᇦ㛗ࡀᴟࡵ࡚▷࠸ࡓࡵᗈᖏᇦࡢἼ㛗࡟ᑐࡍࡿ఩┦୙ᩚྜ㔞ࡀᑠࡉࡃ࡞
ࡿࡇ࡜࠿ࡽࠊᗈᖏᇦ࡞ගᏊᑐࢆⓎ⏕࡛ࡁࡿࠋࡑࡇ࡛ᮏ◊✲࡛ࡣࠊᗈᖏᇦගᏊᑐⓎ⏕ࢆ┠ᣦࡋࠊGaN ࢳࣕࢿࣝᑟἼ㊰ᆺᚤᑠඹ᣺ჾࢹࣂ࢖ࢫࢆస〇ࡋࡓࠋ㸰㸬◊✲ෆᐜ࡜ᡂᯝ
GaN ᑟἼ㊰ᆺᚤᑠඹ᣺ჾࢹࣂ࢖ࢫࡢస〇ࣉࣟࢭࢫࡢ࠺ࡕࠊ㧗࢔ࢫ࣌ࢡࢺẚࡢศᕸࣈࣛ
ࢵࢢ཯ᑕ㙾㸦DBR㸧ࢆᵓᡂࡍࡿపᒅᢡ⋡ᮦᩱࢆᙧᡂࡍࡿ࡟ࡣࠊGaN ࡢ῝⁁࡟࣎࢖ࢻࡢ
Ⓨ⏕࡞ࡋ࡛ᇙࡵ㎸ࡴᢏ⾡ࡀ㔜せ࡜࡞ࡿࠋࡑࡇ࡛ᮏ◊✲࡛ࡣࠊཎᏊᒙሁ✚㸦ALD㸧ἲࢆ⏝࠸ࡓ Al2O3 ࡢᇙࡵ㎸ࡳࢆ⾜࠸ࠊࢳࣕࢿࣝᑟἼ㊰ᆺᚤᑠඹ᣺ჾࢹࣂ࢖ࢫࢆస〇ࡋࡓࠋࢹࣂ࢖ࢫస〇ࣉࣟࢭࢫࡣ௨ୗࡢ㏻ࡾ࡛࠶ࡿࠋ⭷ཌ 1 m ࡢࢧࣇ࢓࢖࢔ᇶᯈୖ GaN ⷧ⭷ࢆ⏝࠸࡚ࠊ㟁Ꮚ⥺ࣜࢯࢢࣛࣇ࢕࣮࡜⵨╔࠾ࡼࡧࣜࣇࢺ࢜ࣇ࡟ࡼࡾ Ni ࣐ࢫࢡࣃࢱ࣮ࣥࢆ
ᙧᡂࡋࠊࢻࣛ࢖࢚ࢵࢳࣥࢢ࡟ࡼࡾ DBR ࢆᵓᡂࡍࡿ GaN ࿘ᮇ⁁ᵓ㐀ࢆྵࡴᚤᑠඹ᣺ჾࢆస〇ࡍࡿࠋNi ࣐ࢫࢡࢆ㝖ཤࡋࡓࡢࡕࠊALD ἲ࡟ࡼࡾ Al2O3 ⷧ⭷ࢆ 170 nm ⛬ᗘሁ✚ࡉࡏࡿࠋሁ✚ࡉࡏࡿ⭷ཌࢆ⁁ᖜࡼࡾཌࡃࡋ࡚࿘ᮇ⁁࡟ Al2O3 ࢆᇙࡵ㎸ࡴࡀࠊୖ㠃࡟ࡶ Al2O3
ࡀሁ✚ࡉࢀࡿࠋALD ᡂ⭷ᚋࡢヨᩱ⾲㠃࡟ࡣᇙࡵ㎸ࡳ࡟㉳ᅉࡋࡓพฝࡀᙧᡂࡉࢀࠊගᩓ
஘ࢆ㉳ࡇࡍᜍࢀࡀ࠶ࡿࠋࡑࡢࡓࡵࠊGaN ࡀ㟢ฟࡉࢀࡿࡲ࡛ヨᩱࢆ㠃◊☻ࡋࠊୖ㠃ࡢ Al2O3
ࢆ㝖ཤࡋᖹ⁥࡞ୖ㠃ࢆᙧᡂࡉࡏࡿࠋྠᵝࡢࣉࣟࢭࢫ࡛ᖜ 1 m ࡢ Ni ࣐ࢫࢡࢆᙧᡂࡋࠊࢻ
ࣛ࢖࢚ࢵࢳࣥࢢ࡛ Al2O3 ࡜ GaN ࢆ࢚ࢵࢳࣥࢢࡋࢳࣕࢿࣝᑟἼ㊰ࢆᙧᡂࡍࡿࠋ
 ALD ࢹࣂ࢖ࢫᚋࡢ DBR ࡢ᩿㠃ᙧ≧ࢆほᐹࡍࡿࡓࡵࠊ㞟᮰࢖࢜ࣥࣅ࣮࣒⿦⨨ࢆ⏝࠸࡚ヨᩱࢆ࢚ࢵࢳࣥࢢࡋࡓࠋࢳ࣮ࣕࢪ࢔ࢵࣉࢆ㜵ࡄࡓࡵ࡟࢚ࢵࢳࣥࢢ๓࡟ Au ࢆ 7.5 nm ሁ✚ࡋࡓࠋFIB ຍᕤᚋࡢヨᩱࡢ㫽▔ SEM ീࢆᅗ 1 ࡟♧ࡍࠋDBR 㡿ᇦ࡟ࡣ✵㝽ࢆ♧၀ࡍࡿࢥࣥࢺࣛࢫࢺࡣほᐹࡉࢀࡎࠊALD ἲࢆ⏝࠸ࡿࡇ࡜࡛ᖜ 100 nm ⛬ᗘࠊ῝ࡉ 1 m ࡢ῝⁁࡟ᑐࡋ Al2O3 ࢆᇙࡵ㎸ࡴࡇ࡜ࡀ࡛ࡁࡓࡇ࡜ࡀศ࠿ࡿࠋࡲࡓୖ㠃࡟ࡣ Al2O3 ࡢพฝ࡟㉳ᅉࡋ

168

Au㻌
Al2O3㻌

㧗䛥
1 Pm㻌

GaN㻌
sapphire㻌࿘ᮇ 292 nm㻌ᅗ 1 ඹ᣺ჾ᩿㠃䛾㫽▔ SEM ീ㻌ࡓพฝࡀࡳࡽࢀ࡚࠸ࡿࠋస〇ࡋࡓ GaN ࢳࣕࢿࣝᑟἼ
㊰ᆺᚤᑠඹ᣺ჾࢹࣂ࢖ࢫࢆᅗ
2 ࡟♧ࡍࠋ㠃◊☻࡟ࡼࡾୖ㠃࡟
GaN ࢆ㟢ฟࡉࡏࡿࡇ࡜ࡀ࡛ࡁࠊ
ᖜ 1 m ࡢ GaN ࢳࣕࢿࣝᑟἼ㊰ෆ࡟ GaN/Al2O3 ࠿ࡽ࡞ࡿ DBRࡀᙧᡂࡉࢀ࡚࠸ࡿࡇ࡜ࡀศ࠿
ࡿࠋ௒ᚋࠊస〇ࡋࡓࢹࣂ࢖ࢫ࡟
㟷Ⰽࡢບ㉳ගࢆ↷ᑕࡉࡏᗈᖏᇦගᏊᑐⓎ⏕ࢆ┠ᣦࡍࠋ
ᅗ 2 స〇䛧䛯䝕䝞䜲䝇䛾㫽▔ SEM ീ㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ᅜෆ఍㆟㸼࣭ Ọ⏣ᣅᐇ㸪ᱵ⏣㣁ᚿ㸪ୖྥ஭ṇ⿱㸪㇂ᕝᬛஅ㸪∦ᒣ❳஧㸪ᗈᖏᇦගᏊᑐⓎ⏕࡟ྥࡅࡓ GaN ᑟἼ㊰ᆺᚤᑠඹ᣺ჾࢹࣂ࢖ࢫࡢタィ㸪➨ 81 ᅇᛂ⏝≀⌮Ꮫ఍⛅Ꮨㅮ₇఍㸪࢜ࣥࣛ࢖ࣥ㸪2020 ᖺ 9 ᭶ 8 ᪥㹼11 ᪥.
࣭ Ọ⏣ᣅᐇ㸪ᱵ⏣㣁ᚿ㸪ୖྥ஭ṇ⿱㸪㇂ᕝᬛஅ㸪∦ᒣ❳஧㸪Design of GaN WaveguideMicrocavity Device for Wide-Band Photon Pair Generation㸪➨ 39 ᅇ㟁Ꮚᮦᩱࢩ࣏ࣥࢪ࢘
࣒㸪࢜ࣥࣛ࢖ࣥ㸪2020 ᖺ 10 ᭶ 7 ᪥㹼9 ᪥.
࣭ ᱵ⏣㣁ᚿ㸪Ọ⏣ᣅᐇ㸪ୖྥ஭ṇ⿱㸪㇂ᕝᬛஅ㸪∦ᒣ❳஧㸪Design and Fabrication of AlN
Waveguide Microcavity SHG Device㸪➨ 39 ᅇ㟁Ꮚᮦᩱࢩ࣏ࣥࢪ࣒࢘㸪࢜ࣥࣛ࢖ࣥ㸪2020ᖺ 10 ᭶ 7 ᪥㹼9 ᪥.
࣭ Ọ⏣ᣅᐇ㸪ᱵ⏣㣁ᚿ㸪ᗈᖏᇦගᏊᑐⓎ⏕࡟ྥࡅࡓ GaN ᑟἼ㊰ᆺᚤᑠඹ᣺ჾࢹࣂ࢖ࢫ
ࡢస〇㸪➨ 68 ᅇᛂ⏝≀⌮Ꮫ఍᫓Ꮨㅮ₇఍㸪࢜ࣥࣛ࢖ࣥ㸪2021 ᖺ 3 ᭶ 16 ᪥㹼19 ᪥.
Ⓨ⾲ணᐃ

169

ู⣬ᵝᘧ㸰㸫㸰ࣇ࢙࣒ࢺ⛊࣮ࣞࢨ࣮↷ᑕ࡟ࡼࡿ㔠ᒓ/GaN ⏺㠃ไᚚ࡟㛵ࡍࡿ◊✲
Study about control of metal/GaN interface using femto-second laser irradiationᐩ⏣༟ᮁ ᚨᓥ኱Ꮫ ኱Ꮫ㝔♫఍⏘ᴗ⌮ᕤᏛ◊✲㒊 ෸ᩍᤵฟ᮶┿ᩯ ྡྂᒇ኱Ꮫ ࣋ࣥࢳ࣮ࣕࣅࢪࢿࢫࣛ࣎ࣛࢺࣜ ෸ᩍᤵ㸯㸬◊✲┠ⓗ ᡃࠎࡣࣇ࢙࣒ࢺ⛊࣮ࣞࢨ࣮ࢆ Ni/Au 㟁ᴟ࡜ p-GaN ⏺㠃࡟↷ᑕࡍࡿࡇ࡜࡛࢖࢜ࣥὀධ
ࡸ⇕ฎ⌮ἲࢆ⾜࠺ࡇ࡜࡞ࡃ࣮࣑࢜ࢵࢡ≉ᛶࢆᚓࡿࡇ࡜ࢆ┠ᣦࡋ࡚◊✲ࡋ࡚࠸ࡿࠋ᫖ᖺᗘ
ࡲ࡛ࡢ◊✲࡟ࡼࡗ࡚ࣇ࢙࣒ࢺ⛊࣮ࣞࢨ࣮ග↷ᑕࡀ p-GaN ࡢప᢬ᢠ໬࡟ᐤ୚ࡍࡿࡇ࡜ࢆ
♧ࡋࡓࠋࡋ࠿ࡋࠊ࣮࣑࢜ࢵࢡ≉ᛶࢆᚓࡓ p-GaN 㟁ᴟࡣ p ᆺఏᑟࡋ࡞࠸ࡇ࡜ࡀ☜ㄆࡉࢀࡓࠋࡇࡢཎᅉ࡜ࡋ࡚ࣇ࢙࣒ࢺ⛊࣮ࣞࢨ࣮࡛↷ᑕࡋࡓ࡜ࡁ࡟ࠊ p-GaN ᒙ࡟␃ࡲࡽࡎ
undoped-GaN ᒙ࡟ࡲ࡛ཬࡪࠊ⇿Ⓨⓗ࡞ຍᕤࡀ㉳ࡇࡗࡓࡓࡵ࡛࠶ࡿ࡜⪃࠼ࡽࢀ࡚࠸ࡿࠋࡼ
ࡗ࡚㟁ᅽࢆ࠿ࡅࡿ࡜ࠊ㟁ὶࡣ⇿Ⓨⓗຍᕤࡀ㉳ࡇࡗࡓ㒊ศࢆ㏻ࡗ࡚ n ᆺࡢ≉ᛶࢆ♧ࡍundoped-GaN ᒙࢆఏᑟࡋ࡚࠸ࡿ࡜⪃࠼ࡽࢀࡿࠋࡑࡇ࡛ࠊᮏᖺᗘࡣࣇ࢙࣒ࢺ⛊࣮ࣞࢨ࣮ග
↷ᑕ᪉ἲࢆ᳨ウࡍࡿࡇ࡜࡛ࠊp ᆺࡢ࣮࣑࢜ࢵࢡࢥࣥࢱࢡࢺࢆᚓࡿࡇ࡜ࢆ┠ᶆ࡜ࡋࡓࠋ

㸰㸬◊✲ෆᐜ࡜ᡂᯝ ᡃࠎࡀᥦ᱌ࡍࡿࣇ࢙࣒ࢺ⛊࣮ࣞࢨ࣮ග↷ᑕ࡟ࡼࡿࠊGaN ࡬ࡢ㟁ᴟస〇ᡭἲࡣ㸰㏻ࡾ࠶
ࡿࠋGaN ࡟㟁ᴟᮦᩱࢆ⵨╔ࡋࡓᚋࠊGaN ᇶᯈഃ࠿ࡽࣇ࢙࣒ࢺ⛊࣮ࣞࢨ࣮ග↷ᑕࢆ⾜࠺⏺㠃↷ᑕ࡜ࠊGaN ⾲㠃࡟ࣇ࢙࣒ࢺ⛊࣮ࣞࢨ࣮ගࢆ↷ᑕࡋ࡚ᨵ㉁ࢆ⾜ࡗࡓᚋࠊ㟁ᴟᮦᩱࢆ⵨╔ࡍࡿ⾲㠃↷ᑕࡢᡭἲ࡛࠶ࡿࠋ⾲㠃↷ᑕࡢᡭἲ࡛స〇ࡋࡓ࣮࣍ࣝ
(ᅗ 1 ࡟స〇ᡭ㡰ࢆ♧ࡍ) ࡢᐃࢆ⾜ࡗࡓࠋ

ᐃ⏝ p-GaN ヨᩱᐃࡣᮾ㝧ࢸࢡࢽ࢝ ResiTest8300 ࢆ౑⏝ࡋࡓࠋ↷ᑕᙉᗘࡣ 120㹼150nJ/pulse ࡛࠶ࡿࠋࡲࡎࠊI-V

ᐃ࡛ࡣ඲࡚ࡢ㟁ᴟ࡟࣮࣑࢜ࢵࢡ

ࢥࣥࢱࢡࢺࡀྲྀࢀ࡚࠸ࡿࡇ࡜ࡀࢃ࠿ࡗࡓࠋ࣮࣍ࣝ
ᐃࡢ⤖ᯝࢆ⾲㸯࡟♧ࡍࠋ࣮࣍ࣝ ᐃࡢ⤖ᯝ࠿ࡽᅗ 㸸࣮࣍ࣝ ᐃ⏝ヨᩱࡢᐇ㦂ᡭ㡰 ⾲㠃↷ᑕ 170

⾲ ࣮࣍ࣝ

ᐃ⤖ᯝ ⾲㠃↷ᑕ 㺬㺎㺷㉳㟁ᅽ>9@(㺧㺐㺛㺼>9@(

㺧㺐㺛㺼>@᪉ྥ౫Ꮡᛶ>@



㹄್



㺕㺊㺶㺏㺞㺐㺪㺽㹌㺬㺎㺷ಀᩘ>P&@(㺕㺊㺶㺏⃰ᗘ>FP@(

㺚㺎㺢㺕㺊㺶㺏⃰ᗘ>FP@(

⛣ືᗘ>FP9͌V@(

㟁Ẽఏᑟࡣ n ᆺ࡛࠶ࡗࡓࠋF ್ࡀ㸯࡛࠶ࡿࡇ࡜࠿ࡽࠊ㸲➃Ꮚࡀᑐ⛠ⓗ࡞≉ᛶࢆ♧ࡋ࡚࠾ࡾࠊࣀ࢖ࢬࡶ㸯%࡛࠶ࡿࡢ࡛

ᐃ⤖ᯝࡢಙ㢗ᛶࡣ㧗࠸ࠋࡇࡢ⤖ᯝ࠿ࡽࠊ⾲㠃↷ᑕ࡟࠾࠸࡚ࠊ㟁ᴟࡣ p ᆺ GaN ࡜࣮࣑࢜ࢵࢡ᥋ゐࢆࡋ࡚࠸ࡿࡢ࡛ࡣ࡞ࡃࠊࡑࡢୗࡢ undoped-GaN
ᒙ࡜࣮࣑࢜ࢵࢡ᥋ゐࡋ࡚࠸ࡿྍ⬟ᛶࡀ㧗࠸ࡇ࡜ࡀࢃ࠿ࡗࡓࠋ࣮࣍ࣝ ᐃ௨እ࡟ࡶ p ᒙࢆఏᑟࡋ࡚࠸ࡿ࠿ㄪ࡭ࡿ᪉ἲ࡜ࡋ࡚ࠊࢩࣙࢵࢺ࣮࢟ࢲ࢖࣮࢜ࢻࢆస〇ࡋࠊ ᐃࡋࡓࠋࢩࣙࢵࢺ࣮࢟ࣂࣜ࢔ࢲ࢖࣮࢜ࢻࡣ n ᆺ࠿ p ᆺ࡟ࡼࡗ࡚♧ࡍ I-Vᐃࡀኚࢃࡿࠋ∦᪉ࢆ࣮࣑࢜ࢵࢡ㟁ᴟࠊࡶ࠺∦᪉ࢆࢩࣙࢵࢺ࣮࢟㟁ᴟ࡜ࡋ࡚ I-V ≉ᛶࢆᐃࡋࠊ≉ᛶ࠿ࡽ p ᆺఏᑟ࠿ n ᆺఏᑟ࠿ࢆุ᩿ࡍࡿᡭἲ࡛࠶ࡿࠋ௒ᅇࡢヨᩱ࡛ࡣ࣮࢜

࣑ࢵࢡ㟁ᴟ࡜ࢩࣙࢵࢺ࣮࢟㟁ᴟࡢ⤌ࡳྜࢃࡏࡀసࢀ࡞࠿ࡗࡓࡓࡵࠊS*D1ୖ࡟┤᥋ࢱࣥࢢࢫࢸࣥࣉ࣮ࣟࣈࢆ⨨࠸࡚ࢩࣙࢵࢺ࣮࢟᥋ゐ࡜ࡋ࡚ ᐃࡋࡓࠋ ᐃ⤖ᯝࢆᅗ  ࡟♧ࡍࠋᅗ 㸸ࢩࣙࢵࢺ࣮࢟ࣂࣜ࢔ࢲ࢖࣮࢜ࢻࡢ ,9 ≉ᛶࡑࡢ⤖ᯝࠊ⌮᝿ಀᩘࡀࡢSᆺࢩࣙࢵࢺ࣮࢟ࢲ࢖࣮࢜ࢻࡢ≉ᛶࢆ♧ࡋ࡚࠸ࡓࠋࡋࡓࡀࡗ
࡚㟁ᴟ࡟㏆࠸⠊ᅖ ȣP ࡯࡝ ࡛ࡣSᆺఏᑟࡀ㉳ࡇࡿྍ⬟ᛶࡀ࠶ࡿࡇ࡜ࡀࢃ࠿ࡗࡓࠋ
ḟ࡟ࠊ⏺㠃↷ᑕᚋ࡟࢔ࢽ࣮ࣝࢆ⾜࡞ࡗ࡚ࠊ࣮࣍ࣝ ᐃ⏝ S*D1ヨᩱࡢ ᐃࢆ⾜ࡗࡓࠋࡑࡢ⤖ᯝࠊ,9 ᐃ࠿ࡽ඲࡚ࡢ㟁ᴟࡀ࣮࣑࢜ࢵࢡࢥࣥࢱࢡࢺ࡜࡞ࡗ࡚࠸ࡿࡇ࡜ࡀ᫂ࡽ࠿࡟࡞
ࡗࡓࠋఏᑟᆺࢆ᫂ࡽ࠿࡟ࡍࡿࡓࡵࠊ࣮࣍ࣝ ᐃࢆ⾜ࡗࡓ࡜ࡇࢁࠊ⏺㠃↷ᑕ࡜࢔ࢽ࣮ࣝ࡟ࡼࡗ࡚స〇ࡋࡓ㟁ᴟࡶQᆺࢆ♧ࡋ࡚࠸ࡓࠋ௒ᅇ PP ゅࡢᇶᯈࡢᅄ㝮࡟ᩘⓒPP ゅࡢ㟁ᴟࢆࡘࡅ࡚࣮࣍ࣝ ᐃࢆ⾜ࡗࡓࡀࠊࡇࡢᡭἲࢆ⏝࠸ࡿ࡜ࠊఏ㏦㊥㞳ࡀ㛗࠸ሙྜࠊᅇࡾ㎸ࡳࡢ㟁ὶࡢᙳ㡪ࡀ኱ࡁ࠸ࡇ࡜ࡸࠊࢥࣥࢱࢡࢺࡣSᒙ࡛ྲྀࢀ࡚࠸ࡿࡀࠊఏᑟࡢ㐣⛬࡛᢬ᢠࡢప࠸ୗࡢᒙ
ࢆὶࢀ࡚ࡋࡲ࠺࡜࠸ࡗࡓࡇ࡜ࡀ㉳ࡇࡿྍ⬟ᛶࡀ࠶ࡿࠋࡑࡢࡓࡵࠊࡶ࠺ᑡࡋᑠࡉ࠸ࢧ࢖ࢬࡢ࣮࣍ࣝ ᐃ⏝ࡢࣃࢱ࣮ࣥࢆ⪃࠼ࡿᚲせࡀ࠶ࡿ㸦ࢡ࣮ࣟࣂ࣮࣮ࣜࣇࣃࢱ࣮ࣥ࡞࡝㸧ࠋ௒ᚋࠊ࣮ࣞࢨ࣮↷ᑕ࡜ヨᩱᵓ㐀ࡢࡉࡽ࡞ࡿ᳨ウ࡟ࡼࡗ࡚ S ᆺࡢ࣮࣑࢜ࢵࢡࢥࣥࢱࢡࢺࢆ
ᚓࡿࡇ࡜ࢆ࡛ࡁࡿྍ⬟ᛶࡣ࠶ࡿ࡜⪃࠼࡚࠾ࡾࠊ᳨ウࢆ㐍ࡵ࡚࠸ࡃࠋ

㸺ཎⴭㄽᩥ㸼
T. Okada, Y. Fuchikami, K. Mimura, T. Ueki, H. Hisazawa and T. Tomita: Formation ofohmic Ni electrodes on femtosecond laser-modified 4H-SiC surface, Applied Physics. A,
Vol.126, 535 (1-7), 2020171ู⣬ᵝᘧ㸰㸫㸰

AlN ୰ࡢ 3 ḟඖ㌿఩ホ౯ᡭἲ࡟㛵ࡍࡿ◊✲
Study on the Three-dimensional imaging of threading dislocation in AlNỌᯇ ㅬኴ㑻࣭ᚨᓥ኱Ꮫ࣭㺬㺽㺛㺢 LED 㺪㺉㺢㺤㺖㺛◊✲ᡤ࣭෸ᩍᤵ㛗㇂ ᰤ἞࣭ᚨᓥ኱Ꮫ࣭㺬㺽㺛㺢 LED 㺪㺉㺢㺤㺖㺛◊✲ᡤ࣭≉௵ຓᩍᮏ⏣ ၿኸ࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱࢩࢫࢸ࣒◊✲ᡤ࣭෸ᩍᤵ
㸯㸬◊✲┠ⓗ ❅໬≀༙ᑟయ AlGaN ⣔῝⣸እ LED ࡣẅ⳦ຠᯝࡀ㧗࠸ࡇ࡜ࠊᑠᆺ࡛Ᏻ౯࡞ẅ⳦⿦⨨ࡀస〇ྍ⬟࡛࠶ࡿࡇ࡜࠿ࡽᐙ㟁࡬ࡢᛂ⏝ࡀᮇᚅࡉࢀ࡚࠸ࡿࠋᐙ㟁ศ㔝࡬ࡢᛂ⏝ᐇ⌧ࡢࡓࡵ࡟ࡣ LED ࡢ㛗ᑑ࿨໬ࡀ࢝ࢠ࡜࡞ࡿࡓࡵࠊ⣲Ꮚᑑ࿨ࢆỴᐃ࡙ࡅࡿ⤖ᬗ୰ࡢ㌿఩ࢆホ౯ࡍࡿࡇ࡜ࡀᴟࡵ࡚㔜せ࡛࠶ࡿࠋᮏ◊✲࡛ࡣࠊ⤖ᬗ୰ࡢ㌿఩࡜Ⓨගࡢ㛵ಀࢆ᫂ࡽ࠿࡟ࡍࡿ࡜
࡜ࡶ࡟⤖ᬗᡂ㛗ᢏ⾡ࡢྥୖࢆ⾜࠸ࠊ㛗ᑑ࿨ࡢ LED ࢆᐇ⌧ࡋ࠺ࡿୗᆅ AlN ࡢప㌿఩໬ࢆ㐩ᡂࡍࡿࡇ࡜ࢆ┠ⓗ࡜ࡋ࡚࠸ࡿࠋᮏሗ࿌࡛ࡣࠊୖグ┠ⓗ㐩ᡂࡢࡓࡵࡢ๓ẁ㝵࡜ࡋ࡚ᐇ᪋
ࡋࡓࠊ⮬సࡢከගᏊ㢧ᚤ㙾࡟ࡼࡿ GaN ⤖ᬗ୰ࡢ㈏㏻㌿఩ࡢ 3 ḟඖྍど໬࡟ࡘ࠸࡚ࡢ◊✲⤖ᯝࢆ♧ࡍࠋ

㸰㸬◊✲ෆᐜ࡜ᡂᯝ
 ㏆ᖺࠊከගᏊ㢧ᚤ㙾ἲࡢ༙ᑟయᮦᩱ࡬ࡢᛂ⏝ࡀὀ┠ࡉࢀ࡚࠸ࡿࠋࡇࡢᛂ⏝ࡣࠊࣇ࢙࣒
ࢺ⛊࣮ࣞࢨ࣮ࢆࡣࡌࡵ࡜ࡋࡓࣃࣝࢫ࣮ࣞࢨ࣮ග࡜㧗 NA ᑐ≀ࣞࣥࢬࡢే⏝࡟ࡼࡾࠊගᏊ
ᐦᗘࢆ᫬✵㛫ⓗ࡟㧗ࡃࡍࡿࡇ࡜࡛ຠ⋡ⰋࡃⓎ⏕ࡍࡿከගᏊບ㉳⌧㇟ࢆ⏝࠸࡚⏬ീࡢࢥࣥࢺࣛࢫࢺࢆᚓࡿࡶࡢ࡛࠶ࡿࠋ౛࠼ࡤࣂࣥࢻࢠࣕࢵࣉ 3.4 eV ࡢ GaN ࡢሙྜࠊ࣮ࣞࢨ࣮
୰ᚰἼ㛗ࢆ 700 nm ⛬ᗘࠊࡲࡓࡣ 1050 nm ⛬ᗘ࡟タᐃࡋ࡚⤖ᬗ࡟↷ᑕࡍࡿࡇ࡜࡛ࠊ 2 ගᏊࡲࡓࡣ 3 ගᏊ྾཰࡟ࡼࡗ࡚࢟ࣕࣜ࢔ࢆບ㉳࡛ࡁࡿࠋࡇࢀࡲ࡛࡟ࠊGaN ࡟࠾࠸࡚ࠊ㌿఩㒊ศࡣ㠀Ⓨග෌⤖ྜ୰ᚰ࡜࡞ࡿࡇ࡜ࡀࢃ࠿ࡗ࡚࠸ࡿࠋࡋࡓࡀࡗ࡚ࠊከගᏊບ㉳࡟ࡼࡿࣇ࢛ࢺ࣑ࣝࢿࢵࢭࣥࢫ㸦PL: photoluminescence㸧ᙉᗘࢆࢥࣥࢺࣛࢫࢺ࡜ࡋ࡚⏬ീ໬ࡍࢀࡤࠊ㌿఩ࢆᬯⅬ࡜ࡋ࡚ほᐹࡍࡿࡇ࡜ࡀྍ⬟࡜࡞ࡿࠋᮏᡭἲ࡛ࡣࠊ
ບ㉳ගࡢගᏊᐦᗘࡀ㧗࠸ᑐ≀ࣞࣥࢬࡢ↔Ⅼ㏆ഐ
ࡢࡳ࡛ಙྕࡀᚓࡽࢀࡿࡇ࡜ࡀ᭱኱ࡢ≉ᚩ࡛࠶ࡾࠊ
ᐃ఩⨨ࢆ௵ពࡢ✵㛫࡟㉮ᰝࡍࡿࡇ࡜࡟ࡼࡾࠊ3ḟඖⓗ࡞㌿఩ࡢほᐹࡀྍ⬟࡜࡞ࡿࠋࡇࡢࡼ࠺࡟ࠊ
ᮏᡭἲࡣ㠀◚ቯᛶ࣭3 ḟඖィ⬟ࢆ୧❧ࡋ࡚㌿఩ࡢ✵㛫ศᕸࢆほᐹྍ⬟࡛࠶ࡿⅬ࡛᭷⏝࡛࠶ࡿࡇ࡜࠿ࡽࠊᮏ◊✲࡛ࡣ⤖ᬗ୰ࡢ㌿఩ࡢホ౯ᡭἲ࡜ࡋ
࡚฼⏝ࡍࡿࠋ
ᅗ㸯࡟ GaN ୰ࡢ㈏㏻㌿఩ྍど໬ࡢࡓࡵ࡟ᵓ⠏172ᅗ㸯 㛤ⓎࡋࡓከගᏊ㢧ᚤ㙾⿦⨨ࡋࡓከගᏊ㢧ᚤ㙾⿦⨨ࢆ♧ࡍࠋ⿦⨨ࡢᵓᡂ࡜ࡋ
࡚ࡣࠊග※ࠊ࢞ࣝࣂࣀ࣑࣮ࣛ࡜࣮ࣜࣞࣞࣥࢬ࠿
ࡽᡂࡿ࣮ࣞࢨ࣮ࣅ࣮࣒㉮ᰝᶵᵓࠊᑐ≀ࣞࣥࢬࠊ㞟ගࣞࣥࢬࠊගᏛࣇ࢕ࣝࢱ࣮࠾ࡼࡧග᳨ฟჾ࡛
࠶ࡿࠋࡲࡓࠊࡇࡇ࡛ࡣᕷ㈍ࡢಽ❧㢧ᚤ㙾ࢆ⿦⨨ࡢ㦵᱁࡜ࡋ࡚฼⏝ࡋ࡚࠸ࡿࠋග※࡟ࡣἼ㛗ྍኚࣇ࢙࣒ࢺ⛊࣮ࣞࢨ࣮㸦୰ᚰἼ㛗ྍኚࣞࣥࢪ㸸680

ᅗ㸰 GaN ⤖ᬗࡢ 2࣭3 ගᏊບ㉳ PL~ 1300 nm㸧ࢆ⏝࠸ࡿࡇ࡜࡛ࠊྠ୍⿦⨨ୗ࡛ບ㉳࢖࣓࣮ࢪࣥࢢ⤖ᯝἼ㛗ࢆኚ໬ࡉࡏ࡞ࡀࡽࡢከගᏊ PL ィࢆྍ⬟࡜ࡋ࡚࠸ࡿࠋḟ࡟ࠊᵓ⠏ࡋࡓ⿦⨨ࢆ⏝࠸࡚ࣂࣝࢡ GaN ⤖ᬗࡢ 2 ගᏊ࣭3 ගᏊ࢖࣓࣮ࢪࣥࢢ㸦ど㔝 50 m ᅄ᪉㸧ࢆ⾜ࡗࡓࠋࡇࡇ࡛ࡣࠊ࡝ࡕࡽࡢ
ሙྜ࡛ࡶ᭱⤊ⓗ࡞ບ㉳࢚ࢿࣝࢠ࣮ࡀྠ୍࡜࡞
ࡿࡼ࠺࡟ບ㉳Ἴ㛗ࢆࡑࢀࡒࢀ 710 nm ࡜ 1065 nm
࡟タᐃࡋࠊගᏛࣇ࢕ࣝࢱ࣮࡟ࡼࡾ 365 nm ㏆ഐࡢගࢫ࣌ࢡࢺࣝᡂศࡢࡳࡀ᳨ฟჾ࡟ධᑕࡍࡿ
ࡼ࠺࡞ᵓᡂ࡜ࡋ࡚࠸ࡿࠋᅗ㸰ࡢከගᏊ࢖࣓࣮ࢪ

ᅗ㸱 ㈏㏻㌿఩ࡢ 3 ḟඖྍど໬ࣥࢢࡢ⤖ᯝ࠿ࡽࠊ࡝ࡕࡽࡢ⏬ീ࡟࠾࠸࡚ࡶ㌿఩ࡀᬯⅬ࡜ࡋ࡚᫂☜࡟ྍど໬࡛ࡁ࡚࠸ࡿ஦
ࡀࢃ࠿ࡿࠋࡲࡓࠊᖹ㠃ࡢィࢆග㍈㸦ヨᩱࡢ῝ࡉ㸧᪉ྥ࡟ື࠿ࡋ࡞ࡀࡽ⏬ീࢆྲྀᚓࡋ࡚

࠸ࡃࡇ࡜࡛ 3 ḟඖⓗ࡞ྍど໬ࢆ⾜ࡗࡓ⤖ᯝࢆᅗ㸱࡟♧ࡍࠋග㍈ࡢ᪉ྥࡣᅗ㸱ࡢୖୗ᪉ྥ
࡛࠶ࡾࠊࡇࡢ᪉ྥ࡟ἢࡗ࡚㈏㏻㌿఩ࡀᏑᅾࡋ࡚࠸ࡿᵝᏊࡀ☜ㄆ࡛ࡁࡿࠋ௨ୖࡢ⤖ᯝ࠿ࡽࠊ
㛤ⓎࡋࡓከගᏊ㢧ᚤ㙾⿦⨨࡟ࡼࡾࠊGaN ୰ࡢ㈏㏻㌿఩ࢆ㠀◚ቯ࠿ࡘ 3 ḟඖⓗ࡟ィ࡛ࡁࡿࡇ࡜ࢆ☜ㄆࡋࡓࠋ௒ᚋࠊ῝⣸እ LED ⏝ࡢୗᆅ AlN ᇶᯈ࡟࠾ࡅࡿ㌿఩ࢆྠᵝ࡟㠀◚ቯ࠿ࡘ 3 ḟඖⓗ࡟ィྍ⬟࡜࡞ࡿࡼ࠺ࠊ㛤Ⓨ⿦⨨ࢆ࣮࣋ࢫ࡟ᨵ㐀࣭ᨵⰋࡍࡿணᐃ࡛࠶ࡿࠋ

࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ཎⴭㄽᩥ㸼࣭ヱᙜ࡞ࡋ㸺ᅜ㝿࣭ᅜෆ఍㆟㸼࣭Eiji Hase, Takeshi Yasui, Hideki Hirayama, and Kentaro Nagamatsu, "The improving resolution
for dislocation analysis in GaN by three-photon microscopy," OPTO2020 in Photonics West2020, 11280-56, Feb. 5, 2020 (San Francisco, USA, 2020/2/1-6).
㸺⏘ᴗ㈈⏘ᶒ㸼࣭ヱᙜ࡞ࡋ173