2P-p01

マグネット解析↓⤯⦕ᕳ⥺ᢏ⾡䛻ᇶ䛵䛟✚ᒙᆺ㧗 ㉸㟁ᑟ䝁䜲䝹䝅䝇䝔䝮䛾タィ䠖㻌ᕤᏛタィ⏝ᩘ್ゎᯒᢏ⾡㻌㻰㼑㼟㼕㼓㼚㻌㼛㼒㻌㼍㻌㻹㼡㼘㼠㼕㻙㻿㼠㼍㼏㼗㼑㼐㻌㻴㼀㻿㻌㻼㼍㼚㼏㼍㼗㼑㻌㻯㼛㼕㼘㻙㻿㼥㼟㼠㼑㼙㻌 㼎㼍㼟㼑㼐㻌㼛㼚㻌㻺㼛㻙㻵㼚㼟㼡㼘㼍㼠㼕㼛㼚㻌㼃㼕㼚㼐㼕㼚㼓㻌㼀㼑㼏㼔㼚㼕㼝㼡㼑㻦㻌 㻭㼚㻌㻭㼚㼍㼘㼥㼟㼕㼟㻌㼀㼑㼏㼔㼚㼛㼘㼛㼓㼥㻌㼒㼛㼞㻌㻰㼥㼚㼍㼙㼕㼏㼟㻌㻰㼑㼟㼕㼓㼚㻌㻌⋤㻌 㡗䠄᪩✄⏣኱Ꮫ䠅䠗ᮭ㻌 ཮ᯇ䠈୎㻌 㛤ᛅ䠄୰ᅜ⛉Ꮫ㝔䠅㻌㼃㻭㻺㻳㻌㼀㼍㼛㻌 䠄㼃㼍㼟㼑㼐㼍㻌㼁㼚㼕㼢㼑㼞㼟㼕㼠㼥䠅䠗㻌 㻰㼁㻌㻿㼔㼡㼍㼚㼓㼟㼛㼚㼓㻘㻌㻰㻵㻺㻳㻌㻷㼍㼕㼦㼔㼛㼚㼓㻌㻔㻯㼔㼕㼚㼑㼟㼑㻌㻭㼏㼍㼐㼑㼙㼥㻌㼛㼒㻌㻿㼏㼕㼑㼚㼏㼑㼟㻕㻌㻱㻙㼙㼍㼕㼘㻦㻌㼙㼕㼏㼔㼑㼍㼘㼣㼍㼚㼓㻬㼒㼡㼖㼕㻚㼣㼍㼟㼑㼐㼍㻚㼖㼜㻌㻌㼀㼍㼎㼘㼑㻚㻝㻌㻿㼜㼑㼏㼕㼒㼕㼏㼍㼠㼕㼛㼚㻌㼛㼒㻌㻹㼡㼘㼠㼕㻙㼃㼕㼐㼠㼔㻌㻾㻱㻮㻯㻻㻌㻼㼍㼚㼏㼍㼗㼑㻌㻯㼛㼕㼘㻌㻝䠊䛿䛨䜑䛻㻌㻌 㻌 ↓⤯⦕㧗 ㉸㟁ᑟᕳ⥺ᢏ⾡䠄㻺㼛㻙㼕㼚㼟㼡㼘㼍㼠㼕㼛㼚 䝁䜲䝹䠈௨ୗParameters
Value
HTS wire width [mm]2.5; 3.0; 3.5; 4.0↓⤯⦕䝁䜲䝹䠅䛿䠈㧗 ㉸㟁ᑟ䝁䜲䝹䛾㧗㟁ὶᐦᗘ䛸㧗⇕ⓗ
HTS wire thickness [mm]0.08Ᏻᐃᛶ䜢ྠ᫬䛻ᐇ⌧䛩䜛䝁䜲䝹໬ᢏ⾡䛸䛧䛶䠈㻞㻜㻝㻝 ᖺ䛻 㻹㻵㼀
Inner diameter [mm]40䛾䝝䞁䜾䝹䞊䝥䛻䜘䜚ᥦ᱌䛥䜜䛯䚹᭱㏆䛷䛿䠈↓⤯⦕䝁䜲䝹䛾
Outer
diameter[mm]50ᡂ❧ᛶ䛸᭷ຠᛶ䛻䛴䛔䛶䠈ᩘ್ゎᯒ䛚䜘䜃᳨ドᐇ㦂䛻䜘䜚
Overall height [mm]50Ⰽ䚻䛺᳨ウ䜢⾜䛳䛶䛝䛯㼇㻝䠈㻞㼉䚹䛧䛛䛧䠈↓⤯⦕䝁䜲䝹䛜 㻹㻾㻵
Number of DP coils7䜔䝃䜲䜽䝻䝖䝻䞁ຍ㏿ჾ䛺䛹䛾䝷䞊䝆䝇䜿䞊䝹ᛂ⏝䜢┠ᣦ䛩✚Turn per DP coil120ᒙ䝁䜲䝹䝅䝇䝔䝮䜈䛾㐺⏝ᛶ䛻䛴䛔䛶䛿䠈᭷ຠ䛺ᩘ್ゎᯒᡭ
Critical current @77 K [A]25ἲ䛿䜎䛰㛤Ⓨ䛥䜜䛶䛔䛺䛔䛯䜑䠈᳨ウ䛥䜜䛶䛔䛺䛔䚹䛭䛣䛷䠈
Charging time constant [s]0.81
Inductance [mH]18.9
ᡃ䚻䛿䠈ඛ⾜◊✲䛷㛤Ⓨ䛥䜜䛯↓⤯⦕䝁䜲䝹䛾ᇶ♏≉ᛶゎᯒᢏ⾡㼇㻝㼉䛻ᇶ䛵䛝䠈✚ᒙ↓⤯⦕䝁䜲䝹䝅䝇䝔䝮䛾≉ᛶ䜢ゎᯒ䛷䛝䜛䝥䝻䜾䝷䝮䜢㛤Ⓨ䛧䛯䚹ᮏሗ䛷䛿䠈ඛ⾜◊✲䛷ᥦ᱌䛥䜜䛯䛂㻹㼡㼘㼠㼕㻙㼃㼕㼐㼠㼔㻌 㼣㼕㼚㼐㼕㼚㼓㻌 㼠㼑㼏㼔㼚㼕㼝㼡㼑䛃㼇㻟㼉䜢ゎᯒ౛䛸䛧䛶䠈ゎᯒ᪉ἲ䛛䜙ጞ䜑䠈ᐇ㦂್䛸ẚ㍑䛧䛺䛜䜙ᮏᩘ್ゎᯒ䛾᭷ຠᛶ䠈䛚䜘䜃䛂㻹㼡㼘㼠㼕㻙㼃㼕㼐㼠㼔㻌㼣㼕㼚㼐㼕㼚㼓㻌㼠㼑㼏㼔㼚㼕㼝㼡㼑䛃䛾ᡂ❧ᛶ䛻䛴䛔䛶ヲ⣽䛻㏙䜉䜛䚹㻌
㻌㻞䠊ゎᯒ䝰䝕䝹㻌㻌 㻌 ᮏ◊✲䛷᳨ウ䛩䜛✚ᒙᆺ㧗 ㉸㟁ᑟ䝁䜲䝹䝅䝇䝔䝮䝰䝕䝹䛿䠈➼౯ᅇ㊰ศᯒ䛻ᇶ䛵䛟㟁ὶゎᯒ䠈䝡䜸䞉䝃䝞䞊䝹䛻ᇶ䛵䛟☢ሙゎᯒ䛚䜘䜃 ᗘゎᯒ䛷ᵓᡂ䛥䜜䛯䚹䜎䛪䠈㟁ὶゎᯒ䛷䛿䠈✚ᒙᆺ䝟䞁䜿䞊䜻䝁䜲䝹䝅䝇䝔䝮䜢䠈ᆶ┤᪉ྥ䛻ⱝᖸಶ䛾䝃䝤䝁䜲䝹䛜┤ิ䛧䛯ᅇ㊰䝅䝇䝔䝮䛸䛧䛶⪃䛘䛯䚹㻲㼕㼓㻚㻌 㻝䛾䜘䛖䛻䠈䝃䝤䝁䜲䝹䛻ὶ䛩㟁ὶ䛿䠈⮬ᕫ䜲䞁䝎䜽䝍䞁䝇㻔㻸㻕䛰䛡䛷䛿䛺䛟┦஫䜲䞁䝎䜽䝍䞁䝇㻔㻹㻕䛻䜒ᙳ㡪䛥䜜䜛䛸䛧䛯䚹㟁Ẽ᢬ᢠᡂศ䛸䛧䛶䠈↓⤯⦕䝁䜲䝹䛾ᒙ㛫᥋ゐ᢬ᢠ䠄㻾㼏䠅䛚䜘䜃䝃䝤䝁䜲䝹䛾㉸㟁ᑟ≉ᛶ䠄㻾㻵㻙㼂䠖㻵㻙㼂 ≉ᛶ䠅䜢⪃៖䛧䛯䚹ḟ䛻䠈☢
ሙゎᯒ䛷䛿䠈☢ሙ䛜ᅇ㊰᪉⛬ᘧ䛷ồ䜑䜙䜜䛯ྛ䝃䝤䝁䜲䝹䛾㟁ὶࢆ⏝࠸࡚ࣅ࣭࢜ࢧࣂ࣮ࣝἲ࡟ࡼࡾィ⟬ࡋࡓࠋࡲࡓ㸪ᗘゎᯒ࡛ࡣ㸪ࢧࣈࢥ࢖ࣝࡢ ᗘୖ᪼ࡀ෭፹ ᗘ㸪 ᗘ౫Ꮡᛶࢆ⪃៖ࡋࡓẚ⇕࡜ 5(%&2 ⥺ᮦࡢᐦᗘ㸪࠾ࡼࡧࢧࣈ
ࢥ࢖ࣝࡢᕳ⥺య✚ࢆ⏝࠸࡚ồࡵࡽࢀࡓࠋ᭱ᚋ࡟㸪☢ሙ㸪ᗘ㸪࠾ࡼࡧ☢ሙ༳ຍゅᗘ࡟౫Ꮡࡍࡿࢧࣈࢥ࢖ࣝ඲యࡢ
㟁Ẽ᢬ᢠࢆồࡵ㸪᭱ึࡢᅇ㊰᪉⛬ᘧ࡟ࣇ࢕࣮ࢻࣂࢵࢡࡋ㸪ḟࢫࢸࢵࣉࡢ㟁ὶ࡜ ᗘࡢィ⟬࡟⧞ࡾ㏉ࡋࡓࠋ㻟䠊ゎᯒᑐ㇟䛚䜘䜃ゎᯒ⤖ᯝ㻌㻲㼕㼓㻚㻞䠄㼍䠅䛿ᮏ◊✲䛾ゎᯒᑐ㇟䛷䛒䜛 㻹㼡㼘㼠㼕㻙㼃㼕㼐㼠㼔 䝟䞁䜿䞊䜻䝁䜲䝹䝅䝇䝔䝮䜢♧䛩䚹䛣䛾䝁䜲䝹䝅䝇䝔䝮䛿䠈ᖜ䛜␗䛺䜛㻾㻱㻮㻯㻻 䝔䞊䝥䛷ᕳ䛛䜜䛯䠓䛴䛾䝎䝤䝹䝟䞁䜿䞊䜻䝁䜲䝹䛷ᵓᡂ䛥䜜䛯䚹䛣䛾䝁䜲䝹䝅䝇䝔䝮䛜䝬䜾䝛䝑䝖䛾ᑠᆺ໬䛻᭷ຠ䛺䝁䜲䝹ᵓ㐀䛸䛧䛶ᥦ᱌䛥䜜䛯䛾䛿䠈⮫⏺㟁ὶ䜈䛾ᙳ㡪䛜኱
䛝䛔Ⓨ⏕☢ሙ䛾༙ᚄᡂศ䛜ᙉ䛔⟠ᡤ䛻ᖜ䛜኱䛝䛔䝔䞊䝥䠈☢ሙ䛾༙ᚄ᪉ྥᡂศ䛜ᙅ䛔⟠ᡤ䛻ᖜ䛜ᑠ䛥䛔䝔䞊䝥䜢౑⏝䛩䜛䛣䛸䛜⪃䛘䜙䜜䜛䠄㻲㼕㼓㻚㻞㻔㼎㻕䠅䚹䜎䛯䠈௒ᅇ䛾ゎᯒ䛻䜘䜚䠈ບ☢᫬䛾✚ᒙᆺ䝟䞁䜿䞊䜻䝁䜲䝹䝅䝇䝔䝮䛾㟁ὶ䛚䜘䜃Ⓨ⇕≉ᛶ䜢᫂䜙䛛䛻䛧䛯䛾䛷䠈䛭䛾ヲ⣽䛻䛴䛔䛶Ꮫ఍ᙜ᪥䛻ሗ࿌䛩
䜛䚹㻌
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㻠䠊ㅰ㎡㻌
ᮏ◊✲䛿䠈᪥ᮏᩥ㒊⛉Ꮫ┬⛉Ꮫ◊✲㈝ⱝᡭ◊✲ 㻮䠄㻝㻢㻷㻝㻤㻜㻢㻤䠅䛾䛤ᨭ᥼䛾ୗ䠈⾜䛳䛯䜒䛾䛸䛩䜛䚹㻌㻲㼕㼓㻚㻝㻌㻱㼝㼡㼕㼢㼍㼘㼑㼚㼠㻌㼏㼕㼞㼏㼡㼕㼠㻌㼙㼛㼐㼑㼘㻌㼒㼛㼞㻌㼙㼡㼘㼠㼕㻙㼟㼠㼍㼏㼗㼑㼐㻌㻴㼀㻿㻌㼜㼍㼚㼏㼍㼗㼑㻌㼏㼛㼕㼘㻙㼟㼥㼟㼠㼑㼙㻌  㻔㼍㻕㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻔㼎㻕㻲㼕㼓㻚㻞㻌㻹㼡㼘㼠㼕㻙㼣㼕㼐㼠㼔㻌㼜㼍㼚㼏㼍㼗㼑㻌㼏㼛㼕㼘㻙㼟㼥㼟㼠㼑㼙㻦㻌㻔㼍㻕㻌㼚㼡㼙㼑㼞㼕㼏㼍㼘㻌㼙㼛㼐㼑㼘㻧㻌㻔㼎㻕㻌 㼍㼤㼕㼍㼘㻌 㼙㼍㼓㼚㼑㼠㼕㼏㻌 㼒㼕㼑㼘㼐㻌 㼐㼕㼟㼠㼞㼕㼎㼡㼠㼕㼛㼚㻌 㼕㼚㻌 㼘㼛㼚㼓㼕㼠㼡㼐㼕㼚㼍㼘㻌 㼟㼑㼏㼠㼕㼛㼚㻘㻌㼍㼚㼐㻌 㼞㼍㼐㼕㼍㼘㻌 㼙㼍㼓㼚㼑㼠㼕㼏㻌 㼒㼕㼑㼘㼐㻌 㼍㼜㼜㼘㼕㼑㼐㻌 㼠㼛㻌 㼠㼔㼑㻌 㼏㼛㼕㼘㻙㼣㼕㼚㼐㼕㼚㼓䠈㼍㼠㻌㼛㼜㼑㼞㼍㼠㼕㼛㼚㻌㼏㼡㼞㼞㼑㼚㼠㻌㼛㼒㻌㻞㻜㻌㻭㻚㻌
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ཧ⪃ᩥ⊩㻌
㻝㻚㻌 㼀㻚㻌 㼃㼍㼚㼓㻘㻌 㼑㼠㻌 㼍㼘㻚㻦㻌 䇾㻭㼚㼍㼘㼥㼟㼕㼟㻌 㼛㼚㻌 㼀㼞㼍㼚㼟㼕㼑㼚㼠㻌 㻮㼑㼔㼍㼢㼕㼛㼞㼟㻌 㼛㼒㻌㻺㼛㻙㻵㼚㼟㼡㼘㼍㼠㼕㼛㼚㻌㻾㻱㻮㻯㻻㻌㻼㼍㼚㼏㼍㼗㼑㻌㻯㼛㼕㼘㻌 㼐㼡㼞㼕㼚㼓㻌㻻㼢㼑㼞㻙㻯㼡㼞㼞㼑㼚㼠㻌㼍㼚㼐㻌 㻿㼡㼐㼐㼑㼚㻌 㻰㼕㼟㼏㼔㼍㼞㼓㼕㼚㼓䇿㻘㻌 㻵㻱㻱㻱㻌 㼀㼞㼍㼚㼟㻚㻌 㼛㼚㻌 㻭㼜㼜㼘㻚㻌㻿㼡㼜㼑㼞㼏㼛㼚㼐㻚㻘㻌㼂㼛㼘㻚㻌㻞㻡㻘㻌㻺㼛㻚㻌㻟㻘㻌㻭㼞㼠㻚㻌㻺㼛㻚㻌㻠㻢㻜㻟㻠㻜㻥㻘㻌㻞㻜㻝㻡㻌㻞㻚㻌 㼄㻚㻌 㼃㼍㼚㼓㻘㻌 㼑㼠㻌 㼍㼘㻚㻦㻌 䇾㻯㼔㼍㼞㼓㼕㼚㼓㻌 㻮㼑㼔㼍㼢㼕㼛㼞㻌 㼕㼚㻌 㻺㼛㻙㻵㼚㼟㼡㼘㼍㼠㼕㼛㼚㻌㻾㻱㻮㻯㻻㻌㻼㼍㼚㼏㼍㼗㼑㻌㻯㼛㼕㼘㼟䇿㻘㻌㻵㻱㻱㻱㻌㼀㼞㼍㼚㼟㻚㻌㼛㼚㻌㻭㼜㼜㼘㻚㻌㻿㼡㼜㼑㼞㼏㼛㼚㼐㻚㻘㻌㼂㼛㼘㻚㻌㻞㻡㻘㻌㻺㼛㻚㻌㻟㻘㻌㻭㼞㼠㻚㻌㻺㼛㻚㻌㻠㻢㻜㻝㻤㻜㻡㻘㻌㻞㻜㻝㻡㻌㻟㻚㻌 㻿㻚㻌 㻴㼍㼔㼚㻘㻌 㼑㼠㻌 㼍㼘㻚㻦㻌 䇾㻺㼛㻙㻵㼚㼟㼡㼘㼍㼠㼕㼛㼚㻌 㼙㼡㼘㼠㼕㻙㼣㼕㼐㼠㼔㻌 㼣㼕㼚㼐㼕㼚㼓㻌㼠㼑㼏㼔㼚㼕㼝㼡㼑㻌㼒㼛㼞㻌㼔㼕㼓㼔㻌㼠㼑㼙㼜㼑㼞㼍㼠㼡㼞㼑㻌㼟㼡㼜㼑㼞㼏㼛㼚㼐㼡㼏㼠㼕㼚㼓㻌㼙㼍㼓㼚㼑㼠䇿㻘㻌㻭㼜㼜㼘㻚㻌㻼㼔㼥㼟㻚㻌㻸㼑㼠㼠㻚㻘㻌㼂㼛㼘㻚㻌㻝㻜㻟㻌㻔㻞㻜㻝㻟㻕㻌㻝㻣㻟㻡㻝㻝㻌― 124 ―

第95回

2017年度秋季低温工学・超電導学会

2P-p02

マグネット解析↓⤯⦕ᕳ⥺ᢏ⾡䛻ᇶ䛵䛟✚ᒙᆺ㧗 ㉸㟁ᑟ䝁䜲䝹䝅䝇䝔䝮䛾タィ䠖㻌㠀ᑐ⛠䛻ศ๭䛥䜜䛯䝁䜲䝹ᕳ⥺䛾ᒁᡤⓗ䜲䞁䝎䜽䝍䞁䝇ィ⟬ἲ㻌㻰㼑㼟㼕㼓㼚㻌㼛㼒㻌㼍㻌㻹㼡㼘㼠㼕㻙㻿㼠㼍㼏㼗㼑㼐㻌㻴㼀㻿㻌㻼㼍㼚㼏㼍㼗㼑㻌㻯㼛㼕㼘㻙㻿㼥㼟㼠㼑㼙㻌㼎㼍㼟㼑㼐㻌㼛㼚㻌㻺㼛㻙㻵㼚㼟㼡㼘㼍㼠㼕㼛㼚㻌㼃㼕㼚㼐㼕㼚㼓㻌㼀㼑㼏㼔㼚㼕㼝㼡㼑㻦㻌 㻌㻯㼍㼘㼏㼡㼘㼍㼠㼕㼛㼚㻌㼛㼒㻌㻿㼑㼘㼒㻛㻹㼡㼠㼡㼍㼘㻌㻵㼚㼐㼡㼏㼠㼍㼚㼏㼑㼟㻌㼒㼛㼞㻌㻭㼟㼥㼙㼙㼑㼠㼞㼕㼏㼍㼘㻌㻿㼑㼓㼙㼑㼚㼠㼟㻌㼕㼚㻌㼠㼔㼑㻌㻯㼛㼕㼘㻙㼃㼕㼚㼐㼕㼚㼓㻌㻌⋤㻌 㡗䠄᪩✄⏣኱Ꮫ䠅䠗ᮭ㻌 ཮ᯇ䠈୎㻌 㛤ᛅ䠄୰ᅜ⛉Ꮫ㝔䠅㻌㼃㻭㻺㻳㻌㼀㼍㼛㻌 䠄㼃㼍㼟㼑㼐㼍㻌㼁㼚㼕㼢㼑㼞㼟㼕㼠㼥䠅䠗㻌 㻰㼁㻌㻿㼔㼡㼍㼚㼓㼟㼛㼚㼓㻘㻌㻰㻵㻺㻳㻌㻷㼍㼕㼦㼔㼛㼚㼓㻌㻔㻯㼔㼕㼚㼑㼟㼑㻌㻭㼏㼍㼐㼑㼙㼥㻌㼛㼒㻌㻿㼏㼕㼑㼚㼏㼑㼟㻕㻌㻱㻙㼙㼍㼕㼘㻦㻌㼙㼕㼏㼔㼑㼍㼘㼣㼍㼚㼓㻬㼒㼡㼖㼕㻚㼣㼍㼟㼑㼐㼍㻚㼖㼜㻌㻌㻝䠊䛿䛨䜑䛻㻌
↓⤯⦕㧗 ㉸㟁ᑟᕳ⥺ᢏ⾡䠄㻺㼛㻙㼕㼚㼟㼡㼘㼍㼠㼕㼛㼚 䝁䜲䝹䠈௨ୗ↓⤯⦕䝁䜲䝹䠅䛿䠈㧗 ㉸㟁ᑟ䝁䜲䝹䛾㧗㟁ὶᐦᗘ䛸㧗⇕ⓗᏳᐃᛶ䜢ྠ᫬䛻ᐇ⌧䛩䜛䝁䜲䝹໬ᢏ⾡䛸䛧䛶䠈䠎䠌䠍䠍ᖺ䛻㻹㻵㼀 䛾䝝䞁䜾䝹䞊䝥䛻䜘䜚ᥦ᱌䛥䜜䛯䚹䛣䛾ᢏ⾡䛾ᡂ❧ᛶ䛸᭷ຠᛶ䜢᳨ド䛩䜛䛯䜑䛻䠈ᡃ䚻䛿䠈኱つᶍ⥙≧ᅇ㊰ゎᯒἲ䛻ᇶ䛵䛟㟁ὶศᕸゎᯒ䛚䜘䜃஧ḟඖ᭷㝈せ⣲ἲ䛻ᇶ䛵䛟ᗘศᕸゎᯒ䜢㐃❧䛧䠈↓⤯⦕䝁䜲䝹ᇶ♏≉ᛶ䜢᫂䜙䛛䛻䛩䜛ゎᯒ䝥䝻䜾䝷䝮䜢㛤Ⓨ䛧䛯䚹䛧䛛䛧䠈䛭䛾ゎᯒ䝥䝻䝥䝷䝮䛿䝁䜲䝹䛾࿘᪉ྥ䛻ᑐ⛠䛺䝯䝑䝅䝳䛧䛛ᑟධ䛷䛝䛺䛛䛳䛯䛯䜑䠈䝯䞊䝍䞊⣭኱ཱྀᚄ㧗 ㉸㟁ᑟ䝁䜲䝹䠈䛒䜛䛔䛿✚ᒙᆺ㧗 ㉸㟁ᑟ䝁䜲䝹䝅䝇䝔䝮䛾ᖖ㟁ᑟ㌿⛣≉ᛶゎᯒ䛻ᛂ⏝䛥䜜䜛䛸䠈䠄࿘᪉ྥศ๭ᩘ㽢ᕳᩘ㽢✚ᒙᩘ䠅䠎䛾⛬䛾ᕧ኱䛺䝬䝖䝸䜽䝇䜢ᩘⓒᅇ䛛䜙ᩘ༓ᅇ䛻⧞䜚㏉䛧ィ⟬䛩䜛ᚲせ䛜䛒䛳䛯䚹䛭䛾ཎᅉ䛻䜘䜚䠈ᖖ䛻ゎᯒ䝬䝅䞁䛾䝯䝰䝸䜸䞊䝞䜢ᘬ䛝㉳䛣䛧䛶䛔䜛䚹䛣䛾ㄢ㢟䜢ゎỴ䛩䜛䛯䜑䛻䠈䝯䝑䝅䝳䛾ᩘ䜢ῶ䜙䛩䛸䜒䛻ゎᯒ⢭ᗘ䜢᭱኱㝈䛻ಖド䛩䜛䛣䛸䛜᭱䜒㔜せ䛷䛒䜛䚹䛭䛣䛷䠈ᡃ䚻䛿䠈㠀ᑐ⛠䛺䝯䝑䝅䝳䠄㻲㼕㼓㻚㻌 㻝䠅䠈༶䛱䠈Ⓨ⇕㒊䛒䛯䜚䛻⦓ᐦ䛺䝯䝑䝅䝳䠈䛭䛾௚䛾㒊ศ䛻⢒䛔䝯䝑䝅䝳䜢ᑟධ䛩䜛䛣䛸䛷䠈ᩘ್ィ⟬
䛾㈇Ⲵ䜢పῶ䛩䜛䛣䛸䜢ᥦ᱌䛧䛯䚹௒ᅇ䛿䠈㠀ᑐ⛠䛺䝯䝑䝅䝳䜢ᑟධ᫬䠈䝁䜲䝹䛾ᒁᡤᕳ⥺ྠኈ㛫䛾䜲䞁䝎䜽䝍䞁䝇䛾ィ⟬ἲ䛻䛴䛔䛶ヲ⣽䛻ሗ࿌䛩䜛䚹㻌㻌㻞䠊ᒁᡤⓗ䜲䞁䝎䜽䝍䞁䝇䛾ィ⟬᪉ἲ㻌㻌 㻌 ᮏ◊✲䛻┤㠃䛸䛩䜛ㄢ㢟䛿䠈䛣䜜䜎䛷㛤Ⓨ䛥䜜䛯↓⤯⦕䝁䜲䝹䛾≉ᛶゎᯒ⏝㟁ὶ䛸 ᗘศᕸ䛾㐃ᡂゎᯒ䝥䝻䜾䝷䝮䛾ィ⟬ᐜ㔞䛸㈇Ⲵ䜢᭱኱㝈䛻ῶ䜙䛧䛺䛜䜙ゎᯒ⢭ᗘ䜢ಖド䛩䜛䛣䛸䛷䛒䜛䚹≉䛻䠈䛭䜜䛿✚ᒙᆺ䝟䞁䜿䞊䜻䝁䜲䝹䝅䝇䝔䝮䛻㔜せ䛷䛒䜛䚹䛭䛣䛷䠈ᡃ䚻䛿䠈✚ᒙᆺ䝟䞁䜿䞊䜻䝁䜲䝹䝅䝇䝔䝮䛻ᑐ䛧䛶䠈㻲㼕㼓㻚㻞 䛻♧䛩䜘䛖䛺⡆᫆ᅇ㊰䝰䝕䝹䛸 㻼㻱㻱㻯 ᅇ㊰䛾䝝䜲䝤䝸䝑䝗ᅇ㊰䝰䝕䝹䜢㛤Ⓨ䛧䛯䚹䛣䛾✚ᒙᆺ䝟䞁䜿䞊䜻䝁䜲䝹䛾ᅇ㊰䝰䝕䝹䛷䠈 ᗘศᕸ䜢᳨ウ䛧䛺䛔䝁䜲䝹䛻䛿䝯䝑䝅䝳ศ๭䜢䛫䛪䠈 ᗘศᕸ䜢᳨ウ䛩䜛䝁䜲䝹䠄౛䛘䜀ᖖఏᑟ㌿⛣Ⓨ⏕䛜䛒䜛䝁䜲䝹䠅䛻䛿⇕ィ⟬䜢㔜ど䛧䛯㠀ᑐ⛠䛺䝯䝑䝅䝳ศ๭䜢⾜䛖䚹௒ᅇ䛾ሗ࿌䛿䠈㠀ᑐ⛠䛺䝯䝑䝅䝳ศ๭䛻䜘䜛ᕳ⥺䛾ᒁᡤⓗ䜲䞁䝎䜽䝍䞁䝇䛾ィ⟬ἲ䜢ᥦ᱌䛩䜛䚹䜎䛪ヲ⣽䛺ᗘศᕸゎᯒ䜢⾜䛖䝁䜲䝹䠏䠄㻲㼕㼓㻚㻞䠅䛾ᒁᡤⓗᕳ⥺ྠኈ䛾䜲䞁䝎䜽䝍䞁䝇䜢♧䛩䚹㻌
M i, jR

P0 ri rj
4SO2

c
T i  'T i T j  'T j hi c h j

³

Ti

³ ³³

Tj

hi h jcos Ii  I j
R1
ri2  rj2 - 2ri rj cos Ii  I j  zi2  z 2j㻲㼕㼓㻚㻝㻌 ᗘศᕸィ⟬ࡢ⢭ᗘࢆಖドࡍࡿ࣓ࢵࢩࣗศ๭᪉ἲ
㸦ᕥᅗ㸸ࢥ࢖ࣝࡢ࿘᪉ྥ࡟ᑐ⛠࡞࣓ࢵࢩࣗ㸹ྑᅗ㸸Ⓨ⇕㒊࡟㔜どࡍࡿ㠀ᑐ⛠࡞࣓ࢵࢩࣗ㸧㻌ᗘศᕸ䜢᳨ウ䛧䛺䛔䝁䜲䝹䛿䝯䝑䝅䝳ศ๭䜢⾜䜟䛺䛔䚹

Iop
Shunt

ࡓࡔࡋ㸪ri ࡜ rj ࡣ஧ࡘࡢ㟁ὶ⣲∦ࡀ୰ᚰ࡟㞳ࢀࡿ㊥㞳ࢆ♧ࡍࠋși㸪și+¨și㸪șj ࡜ șj+¨șj ࡣ㸪ࡑࢀࡒࢀ㟁ὶ⣲∦ i㸪j ࡢ
ጞⅬ࡜⤊Ⅼ࡟ᑐᛂࡍࡿゅᗘ࡛࠶ࡿࠋ࡞࠾㸪㠀ᑐ⛠࣓ࢵࢩࣗᑟධ᫬࡟ࡣ¨șiӆ¨șj ࡢ㛵ಀ࡟࠶ࡿࠋhi㸪hj㸪hi’࡜ hj’ࡣ㸪ࡑࢀࡒࢀ㟁ὶ⣲∦ i㸪j ࡢ㧗ࡉࡢጞⅬ࡜⤊Ⅼࢆ♧ࡍ㸦✚ᒙᆺࢥ࢖ࣝࢩࢫࢸ࣒ࡢሙྜ㸪Ꮚࢥ࢖ࣝࡢ┦ᑐ఩⨨ࡀ␗࡞ࡿࡓࡵ㸪hiӆhj ࡜࡞ࡿࠋ㸧ࠋȜ ࡣࢥ࢖ࣝᕳ⥺ࡢᖜ࡛࠶ࡿࠋȭi㸪ȭj㸪zi ࡜ zj ࡣ✚ศኚᩘ࡛࠶ࡿࠋ

Iș2

RI-V L1

RI-V L2

Ir1

Rc

Rc

Ir2

㻼㻱㻱㻯䝰䝕䝹

⡆᫆➼౯ᅇ㊰䝰䝕䝹

Switch㻲㼕㼓㻚㻞㻌 ✚ᒙᆺ↓⤯⦕㧗 ㉸㟁ᑟࢥ࢖ࣝࢩࢫࢸ࣒࡟࠾ࡅࡿ㟁ὶ࡜ ᗘࡢ㐃ᡂゎᯒࣔࢹࣝ㻔ࢥ࢖ࣝ㸱ࡣ ᗘศᕸࢆ᳨ウࡍࡿࢥ࢖ࣝ㸪ࡑࢀ௨እࡢࢥ࢖ࣝࡣ ᗘศᕸࢆ᳨ウࡋ࡞࠸ࠋ㻕㻌ḟ࡟㸪ࢥ࢖ࣝ㸱௨እࡢࢥ࢖ࣝྠኈ㛫ࡢ࢖ࣥࢲࢡࢱࣥࢫࡣ
௨ୗ࡟♧ࡍࠋ

Rc

c c

c c

P 0 N 2 ri r j r r 2S h h cos Ii

M i, jjij³ ³ ³ ³ ³ Rc dri drj dIdzi dz j 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻔㻟㻕

2Si S jri rj 0 hi h j1
ri2  r j2 - 2ri r j cos I  zi2  z 2j㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻔㻠㻕ࡑࡋ࡚㸪ࢥ࢖ࣝ㸱௨እࡢࢥ࢖ࣝࡀࢥ࢖ࣝ㸱ࡢᒁᡤⓗᕳ⥺࡟ᑐࡍࡿ࢖ࣥࢲࢡࢱࣥࢫࢆ♧ࡍࠋdIi dI j dzi dz j 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻔㻝㻕㻌㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻔㻞㻕㻌

Iș1ᗘศᕸ䜢᳨ウ䛩䜛䝁䜲䝹䛿䝯䝑䝅䝳ศ๭䜢⾜䛖䚹i

M i, jc c

c c

P 0 Nri r j r r T 'T h h cos I
2Si S jjij

³ ³ ³ ³ ³ Rc dri dr j dIdzi dz j 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻔㻡㻕㻌
ri rj

T

hi h jࡇࡇ࡛ࡣ㸪ȭࡣ✚ศኚᩘ࡛㟁ὶ⣲∦ྠኈ㛫ࡢ࡞ࡍゅ࡛࠶ࡿࠋN, Si ࡜ Sj ࡣᕳᩘ࡜㸰ࡘࡢ㟁ὶ⣲∦ࡢᶓ᩿㠃✚࡛࠶ࡿࠋ࡞࠾㸪࢖ࣥࢲࢡࢱࣥࢫィ⟬್ࡢጇᙜᛶ࡟ࡘ࠸࡚ࡣ㸪ඛ⾜◊✲ࡢᐇ㦂್࡜ẚ㍑ࡋࡓࡢ࡛㸪Ꮫ఍ᙜ᪥࡟ሗ࿌ࡍࡿࠋ
ᮏ◊✲䛿䠈᪥ᮏᩥ㒊⛉Ꮫ┬⛉Ꮫ◊✲㈝ⱝᡭ◊✲ 㻮䠄㻝㻢㻷㻝㻤㻜㻢㻤䠅䛾䛤ᨭ᥼䛾ୗ䠈⾜䛳䛯䜒䛾䛸䛩䜛䚹㻌㻌ཧ⪃ᩥ⊩㻌㻝㻚㻌 㻿㼘㼛㼎㼛㼐㼍㼚㻌 㻮㼍㼎㼕㼏㻘㻌㼑㼠㻌㼍㼘㻚㻦㻌䇾㻹㼡㼠㼡㼍㼘㻌㼕㼚㼐㼡㼏㼠㼍㼚㼏㼑㻌㼍㼚㼐㻌㼙㼍㼓㼚㼑㼠㼕㼏㻌㼒㼛㼞㼏㼑㻌 㼏㼍㼘㼏㼡㼘㼍㼠㼕㼛㼚㼟㻌 㼒㼛㼞㻌 㼏㼛㼍㼤㼕㼍㼘㻌 㼎㼕㼠㼠㼑㼞㻌 㼐㼕㼟㼗㻌 㼏㼛㼕㼘㼟䇿㻘㻌 㻵㻱㼀㻌 㻿㼏㼕㻚㻌㻹㼑㼍㼟㻚㻌㼀㼑㼏㼔㼚㼛㼘㻚㻘㻌㼂㼛㼘㻚㻌㻝㻜㻘㻌㻺㼛㻚㻌㻤㻘㻌㼜㼜㻚㻌㻥㻣㻞㻙㻥㻣㻢㻘㻌㻞㻜㻝㻢㻌― 125 ―

第95回

2017年度秋季低温工学・超電導学会

2P-p03

マグネット解析㼅 ⣔㉸ఏᑟ㌿఩୪ิᑟయ䛷ᵓᡂ䛧䛯䝁䜲䝹䛾௜ຍⓗ஺ὶᦆኻ≉ᛶ䠄㻠䠅㻌㻭㼐㼐㼕㼠㼕㼛㼚㼍㼘㻌㻭㻯㻌㼘㼛㼟㼟㻌㼜㼞㼛㼜㼑㼞㼠㼕㼑㼟㻌㼛㼒㻌㻾㻱㻮㻯㻻㻌㼟㼡㼜㼑㼞㼏㼛㼚㼐㼡㼏㼠㼕㼚㼓㻌㼜㼍㼞㼍㼘㼘㼑㼘㻌㼏㼛㼚㼐㼡㼏㼠㼛㼞㼟㻌㻔㻠㻕㻌㻌 Ἀ㻌 ⥲୍㑻㻘୕ᾆ㻌 ᓧ㻘㻌 ᒾ⇃㻌 ᡂ༟㻔஑኱㻕㻌㻻㻷㻵㻌㻿㼛㼕㼏㼔㼕㼞㼛㻘㻌㻹㻵㼁㻾㻭㻌㻿㼔㼡㼚㻘㻌㻵㼃㻭㻷㼁㻹㻭㻌㻹㼍㼟㼍㼠㼍㼗㼍㻌㻔㻷㼥㼡㼟㼔㼡㻙㼁㼚㼕㼢㻚㻕㻌㻌㻱㻙㼙㼍㼕㼘㻦㼛㼗㼕㻬㼟㼏㻚㼗㼥㼡㼟㼔㼡㻙㼡㻚㼍㼏㻚㼖㼜㻌ࡣࡌࡵ࡟ ᡃࠎࡣ኱㟁ὶᐜ㔞໬ࢆ┠ᣦࡍ㓟໬≀㉸ఏᑟయࡢᵓᡂἲ

ཧ⪃ᩥ⊩࡜ࡋ࡚ Fig.㸯࡟♧ࡍࡼ࠺࡟⣲⥺ࢆ୪ิ࡟୪࡭ࠊᕳࡁ⥺㏵୰

1.

࡛㌿఩ࢆ᪋ࡍ᪉ἲࢆᥦ᱌ࡋ࡚࠸ࡿࠋ㉸ఏᑟ⥺ᮦࢆ⏝࠸࡚㌿ᵳᮌࠊ௚㸸➨ 91 ᅇ 2016 ᖺᗘ᫓Ꮨప

ᕤᏛ࣭㉸㟁ᑟ

Ꮫ఍ㅮ₇ᴫせ㞟 90 (2014)2P-p15

఩୪ิᑟయࢆᵓᡂࡍࡿ࡜㌿఩୪ิᑟయ໬࡟క࠺ᦆኻࡀⓎ⏕ࡍࡿࠋࡇࡢᦆኻࡢࡇ࡜ࢆ௜ຍⓗ஺ὶᦆኻ࡜࿧ࢇ࡛࠸ࡿࠋ
ࡇࢀࡲ࡛ࡢᡃࠎࡢ◊✲࡛ࡣࠊ᫬㛫ኚ໬ࡍࡿ┤ὶࡢእ㒊☢⏺
ࡀ༳ຍࡉࢀࡓሙྜࡢ௜ຍⓗ஺ὶᦆኻ࡟ࡘ࠸᳨࡚ウࡋ࡚ࡁ
ࡓ>@ࠋᮏ◊✲࡛ࡣࠊ஺ὶእ㒊☢⏺ࡀ༳ຍࡉࢀࡓሙྜࡢ௜
ຍⓗ஺ὶᦆኻ࡟ࡘ࠸᳨࡚ウࡋࡓࠋFig.1 Schematic view of a transposed two-strand୪ิᑟయࡢ௜ຍⓗ஺ὶᦆኻ
 Fig.2 ࡣ  ᮏ୪ิᑟయࡢ㌿఩఩⨨ࢆ୰ኸ࠿ࡽǼεࡔࡅࡎparallel conductor.

ࡽࡋࡓ୍ᒙࢯࣞࣀ࢖ࢻࢥ࢖ࣝࡢᴫ␎ᅗ࡛࠶ࡿࠋ㌿఩ࡢᕥྑ࡛㙐஺☢᮰ࡢᕪࡀ⏕ࡌࠊࡑࢀࢆᡴࡕᾘࡍࡼ࠺࡟㐽ⶸ㟁ὶ ,ࡀⓎ⏕ࡍࡿࠋ㐽ⶸ㟁ὶࢆᑟฟࡍࡿ㝿࡟ࠊQ ್ࣔࢹࣝ࡟ࡼࡿ
⣲⥺᢬ᢠ 5+76 ࡣ  ᘧ࡜࡞ࡿࠋ

RHTS

VC

I n1

n
IC







  

ࡇࢀࡼࡾ༢఩య✚୍࿘ᮇᙜࡓࡾࡢ௜ຍⓗ஺ὶᦆኻ : ࡣ ᘧ࡜࡞ࡿࠋ

W³

2S / Z02( R  RHTS ) I 2
dt 
2uwL

Fig.2 Schematic illustration of aparallelconductor wound into a one-layer coil.

VC㸸㟁ᅽᇶ‽, IC㸸⮫⏺㟁ὶ್, L㸸ᑟయ㛗

4

10

3

R㸸➃㒊᥋ゐ᢬ᢠRHTS㸸⣲⥺➼౯᢬ᢠ

Additional ac loss[J/m cycle]  ⤖ᯝ ྛ㹬್࡟࠾ࡅࡿ௜ຍⓗ஺ὶᦆኻࡢእ㒊☢⏺᣺ᖜ౫Ꮡᛶ
ࡢゎᯒ⤖ᯝࢆ Fig.3 ࡟♧ࡍࠋ㹬್ࡀᑠࡉ࠸࡯࡝᪩ᮇ࠿ࡽ௜
ຍⓗ஺ὶᦆኻࡀᛴ⃭࡟ቑຍࡍࡿࡇ࡜ࡀࢃ࠿ࡿࠋࡲࡓࠊ㹬್ࡀ኱ࡁ࠸࡯࡝௜ຍⓗ஺ὶᦆኻࡢቑຍ⋡ࡀᛴᓧ࡟࡞ࡿࡇ࡜
ࡀࢃ࠿ࡿࠋࡑࡢ௚ࣃ࣓࣮ࣛࢱࢆኚ໬ࡉࡏࡓሙྜࡢ௜ຍⓗ஺

n=3
n=5
n=10
n=20

102

0

10 -1
10

0

10
B [T]

ὶᦆኻ࡟ࡘ࠸࡚ࡣᙜ᪥ሗ࿌ࡍࡿࠋ

m

Fig.3 The properties of the additional ac loss.

― 126 ―

第95回

2017年度秋季低温工学・超電導学会

2P-p04

マグネット解析㻹㼓㻮㻞 䝷䝄䝣䜷䞊䝗䜿䞊䝤䝹䛻䜘䜛䝎䝤䝹䝟䞁䜿䞊䜻䝁䜲䝹ヨస㻌㼀㼞㼕㼍㼘㻌㼐㼛㼡㼎㼘㼑㻌㼜㼍㼚㼏㼍㼗㼑㻌㼏㼛㼕㼘㼟㻌㼣㼛㼡㼚㼐㻌㼡㼜㻌㼣㼕㼠㼔㻌㻹㼓㻮㻞㻌 㻾㼡㼠㼔㼑㼞㼒㼛㼞㼐㻌㼏㼍㼎㼘㼑㼟㻌㻌ᵐ⏣㻌 ᗣ༤䠈᪂෠㻌 Ꮥ࿴䠄㻷㻱㻷䠅䠗℈ᓥ㻌 㧗ኴ㑻䠈㥖㎸㻌 ᩄᘯ䠈ሯ⏣㻌 ㅬ୍䠄๓ᕝ䠅䠗ᖹ㔝㻌 ┤ᶞ䠈㛗ᒇ㻌 㔜ኵ䠈Ώ㒊㻌 ᬛ๎䠄୰㒊㟁ຊ䠅䠗㧗ᑿ㻌 ᬛ᫂䠈㇂㈅㻌 ๛䠈Ỉⴠ㻌 ✵䠈Ỉ㔝㻌 ఙဢ䠈⚄ಖ㻌 ⱸ㑣䠈ୖᯘ㻌 ᫀᘯ䠄ୖᬛ኱䠅䠗ᜠᆅ㻌 ኴ⣖䠈෠⏣㻌 ඃ䠄㕲㐨⥲◊䠅㻌㻹㻭㻷㻵㻰㻭㻌㼅㼍㼟㼡㼔㼕㼞㼛䠈㻿㻴㻵㻺㼀㻹㻵㻌㼀㼍㼗㼍㼗㼍㼦㼡㻌㻔㻷㻱㻷㻕㻧㻌㻴㻭㻹㻭㻶㻵㻹㻭㻌㼀㼍㼗㼍㼠㼍㼞㼛㻘㻌㻷㻻㻹㻭㻳㻻㻹㻱㻌㼀㼛㼟㼔㼕㼔㼕㼞㼛㻘㻌㼀㻿㼁㻷㻭㻰㻭㻌㻷㼑㼚㼕㼏㼔㼕㻌㻔㻹㼍㼥㼑㼗㼍㼣㼍㻌㻹㻲㻳㻚㻌㻯㼛㻚㻘㻌㻸㼀㻰㻚㻕㻧㻌㼀㻭㻷㻭㻻㻌㼀㼛㼙㼛㼍㼗㼕㻘㻌㼅㻭㻳㻭㻵㻌㼀㼟㼡㼥㼛㼔㼕㻘㻌㻹㻵㼆㼁㻻㻯㻴㻵㻌㻿㼛㼞㼍㻘㻌㻹㻵㼆㼁㻺㻻㻌㻿㼔㼕㼚㼥㼍㻘㻌㻶㻵㻹㻮㻻㻌㻹㼍㼚㼍㻘㻌 㻌㻷㻭㻹㻵㻮㻭㼅㻭㻿㻴㻵㻌㻹㼍㼟㼍㼔㼕㼞㼛㻌㻔㻿㼛㼜㼔㼕㼍㻌㼁㼚㼕㼢㻚㻕㻧㻻㻺㻶㻵㻌㼀㼍㼕㼗㼕㻘㻌㼀㻻㻹㻵㼀㻭㻌㻹㼍㼟㼍㼞㼡㻌㻔㻾㼀㻾㻵㻕㻌㻱㻙㼙㼍㼕㼘㻦㻌㼥㼍㼟㼡㼔㼕㼞㼛㻚㼙㼍㼗㼕㼐㼍㻬㼗㼑㼗㻚㼖㼜㻌㻝䠊䛿䛨䜑䛻㻌
Ỉ⣲䜶䝛䝹䜼䞊䝅䝇䝔䝮䛻䚸ᾮయỈ⣲䛷෭༷䛥䜜䜛 㻿㻹㻱㻿䜢㐃ᦠ䛥䛫䚸㟁ຊไᚚ䜢㧗ᗘ໬䛩䜛䛣䛸䜢ᥦ᱌䛧䛶䛔䜛㼇㻝㼉䚹䝁䜲䝹䛾㉸ఏᑟ⥺ᮦ䛸䛧䛶䛿䚸᧍⥺໬䛻ྥ䛟⣲⥺ᙧ≧䛾 㻹㼓㻮㻞㻌䛻ὀ┠䛧䛶䛔䜛䚹䛯䛰䛧 㻺㼎㻟㻿㼚 ⥺ྠᵝ䚸㻹㼓㻮㻞 ⥺䜒ṍ䛻䜘䜛㉸ఏᑟ≉ᛶ䛾ຎ໬䛿☜ㄆ䛥䜜䛶䛚䜚䚸᧍⥺ຍᕤ䜔䝁䜲䝹ᕳ䛝⥺᫬䛾ຎ໬䛾≉ᛶ䜢⌮ゎ䛧䛶䛚䛛䛺䛡䜜䜀䛺䜙䛺䛔䚹ຍᕤ᪉ἲ䛾᭱㐺໬䜢┠ᣦ䛧䛶䚸⣲⥺䜢ㄪ㐩䛧䛶᧍⥺䛧䚸㼃㼕㼚㼐㻌 㻒㻌 㻾㼑㼍㼏㼠㻌ἲཬ䜃 㻾㼑㼍㼏㼠㻌㻒㻌㼃㼕㼚㼐 ἲ䛻䜘䜛䝟䞁䜿䞊䜻䝁䜲䝹䜢 㻝 ಶ䛪䛴ヨస䛧㻘㻌 ᾮయ䝦䝸䜴䝮୰䛷ணഛ෭༷ヨ㦂䜢⾜䛳䛯䚹㻌㻌㻞䠊⥺ᮦཬ䜃䝷䝄䝣䜷䞊䝗䜿䞊䝤䝹㻌㻹㼓㻮㻞 ⣲⥺䛿䝝䜲䝟䞊䝔䝑䜽䠄㻴㼀䠅♫〇䛾 㻟㻜㻙㻺㻹䠄㻟㻜 䝣䜱䝷䝯䞁䝖䠅ཬ䜃 㻞㻠㻙㻺㻹䠄㻞㻠 䝣䜱䝷䝯䞁䝖䠅䜢㉎ධ䛧䚸䛭䜜䛮䜜 㻲㼕㼓㻚㻝䛻♧䛩᩿㠃ᵓᡂ䛾䝷䝄䝣䜷䞊䝗䜿䞊䝤䝹䜢స〇䛧䛯䚹㻟㻜㻙㻺㻹䛾㖡䛾᩿㠃ẚ⋡䛜 㻝㻞㻌 㻑䛸ప䛔䛯䜑䚸㖡䛾䝁䜰䜢௜ຍ䛧䛯䜿䞊䝤䝹䛸䛧䛶䛔䜛䚹䜎䛯ᕳ䛝⥺ᚋ䛻 㻹㼓㻮㻞 ⏕ᡂ⇕ฎ⌮䠄⣙ 㻢㻣㻡䉝㽢㻝 ᫬㛫䠅䜢⾜䛖䛯䜑䚸㻿㻙㼓㼘㼍㼟㼟 䛾⦅⤌䛷⤯⦕䜢᪋䛧䛶䛔䜛䚹㻞㻠㻙㻺㻹 䛿䚸᧍⥺ᚋ䛻⇕ฎ⌮䛧䚸䝫䝸䜲䝭䝗䝔䞊䝥䛷⤯⦕䜢᪋䛧䛶䛔䜛䚹䜎䛯䚸㻞㻠㻙㻺㻹 䛿䚸㻟㻜㻙㻺㻹 䛸ẚ䜉䛶๛ᛶ䛜㧗䛟䚸᧍䜚ᡠ䛧䜢ᢚ䛘䜛䛯䜑䚸ཌ䛥᪉ྥ䛻 㻤㻡㻌㻑䜎䛷ᅽ⦰䠄䝻䞊䝷䞊䠅ຍᕤ䜢䛧䛶䛔䜛䚹䜿䞊䝤䝹䠄㻞㻠㻙㻺㻹䠅䛾⮫⏺㟁ὶ䜢 㻸㻴㼑 ୰䛷 ᐃ䛧䛯䛜䚸᧍⥺᫬䛾ຎ໬䛜☜ㄆ䛥䜜䛶䛔䜛䠄㻲㼕㼓㻚㻌㻞䠅䚹㻌䝁䜲䝹⏝᧍⥺ຍᕤ䛻ඛ❧䛱䚸᧍⥺ຍᕤ䛻䜘䜛⮫⏺㟁ὶ䛾ຎ໬䛾≉ᛶ䜢 ᐃ䛧䛯䚹㻲㼕㼓㻚㻌 㻟 䛻䝒䜲䝇䝖䝢䝑䝏䜢ኚ䛘䛯㻟㻜㻙㻺㻹 䛾 㻝㻜 ᮏ᧍⥺䛾ヨ㦂⤖ᯝ䜢♧䛩䚹䝒䜲䝇䝖䝢䝑䝏䛜㛗䛔䜋䛹䚸᧍⥺᫬䛾᭤䛢ṍ䠄チᐜ್䛿 㻟㻌㻙㻌㻠㻌㻑䠅䛿ୗ䛢䜛䛣䛸䛿䛷䛝䜛䛜䚸᧍䜚䜋䛠䜜䛶䛧䜎䛖䛾䛷䚸䛒䜛⛬ᗘ䜎䛷䠄㻣㻜㻌 㻑䠅䛾ຎ໬䜢๓ᥦ䛻䛧䛶䚸᧍⥺ᛶ⬟䜢ぢ✚䜒䜙䛺䛡䜜䜀䛺䜙䛺䛔䚹㻌㻌㻟䠊㼃㻒㻾 ἲཬ䜃 㻾㻒㼃 ἲ䛻䜘䜛䝎䝤䝹䝟䞁䜿䞊䜻䝁䜲䝹ヨస㻌䝁䜲䝹䛾௙ᵝ䜢 㼀㼍㼎㼘㼑㻌㻝 䛻䜎䛸䜑䜛䚹䜿䞊䝤䝹䛾ཌ䛥䛿␗䛺䜛䜒䛾䛾䚸ྠ䛨ᕳ䛝⥺ෆእᚄ䛸䛺䜛䜘䛖䚸㻾䠃㼃 䝁䜲䝹䛾᪉䛿䚸䝇䝨䞊䝃䞊䠄㻳㻲㻾㻼䠅䜢ᕳ䛝⥺୰䛻ᕪ䛧㎸䜣䛷ㄪᩚ䛧䛶䛔䜛䚹䛹䛱䜙䛾䝁䜲䝹䜒䚸㟁ᮦྥ䛡䛾ప⢓ᛶ⇕◳໬ᛶ䜶䝫䜻䝅䝺䝆䞁㻔㻞 ᾮᆺྵᾐ⏝ᶞ⬡㻕䜢┿✵ྵᾐ䛧䛯䚹㻲㼕㼓㻚㻌 㻠 䛻᏶ᡂ䛧䛯㼃㻒㻾 䝁䜲䝹䜢♧䛩䚹㻌᏶ᡂ䛧䛯 㻞 ಶ䛾䝎䝤䝹䝟䞁䜿䞊䜻䝁䜲䝹䛿䚸㻸㻴㼑 䛷෭༷䛥䜜䚸㻣㻜㻜㻭䠄㻜㻚㻤㻣㻌 㼀䠅䜎䛷ບ☢䛥䜜䛯䚹ᕳ⥺᫬䛾ⴭ䛧䛔ᛶ⬟ຎ໬䛜㉳䛝䛶䛔䛺䛔䛣䛸䜢䚸☜ㄆ䛧䛯䚹௒ᚋ䚸䝎䝤䝹䝟䞁䜿䞊䜻䜢ቑタ䛧䛶䚸☢ሙ䜔㟁☢ᛂຊ䜢ቑ䛧䛶䛔䛟䛸䛸䜒䛻䚸Ᏻᐃᛶ䜔䜽䜶䞁䝏≉ᛶ䜒 ᐃ䛩䜛ணᐃ䛻䛧䛶䛔䜛䚹㻌㻌ㅰ㎡㻌
ᮏ◊✲䛿䚸⛉Ꮫᢏ⾡᣺⯆ᶵᵓ䛾ඛ➃ⓗపⅣ⣲໬ᢏ⾡㛤Ⓨ䛾ຓᡂ䜢ཷ䛡䛶ᐇ᪋䛧䛶䛔䜎䛩䚹ཪ䚸⩚⾰㟁ᶵ䛾໭ᮧᵝ䛻䛿䚸䝁䜲䝹〇స䛷኱ኚ䛚ୡヰ䛻䛺䛳䛶䛚䜚䜎䛩䚹ឤㅰ⏦䛧ୖ
䛢䜎䛩䚹㻌
ཧ⪃ᩥ⊩㻌
㼇㻝㼉㻌 㼀㻚㻌 㻴㼍㼙㼍㼖㼕㼙㼍㻘㻌 㼑㼠㻚㻌 㼍㼘㻌 㻦㻌 㻵㻱㻱㻱㻌 㼀㼞㼍㼚㼟㻚㻌 㻭㼜㼜㼘㻚㻌 㻿㼡㼜㼑㼞㻚㻌 㼂㼛㼘㻚㻞㻞㻘㻌㼚㼛㻚㻟㻘㻌㻶㼡㼚㼑㻚㻌㻞㻜㻝㻞㻘㻌㻭㼞㼠㻚㼚㼛㻚㻌㻡㻣㻜㻝㻣㻜㻠㻚㻌 㻌㻌㻲㼕㼓㻚㻌㻝㻌㻯㼞㼛㼟㼟㻌㼟㼑㼏㼠㼕㼛㼚㻌㼛㼒㻌㻹㼓㻮㻞㻌㻾㼡㼠㼔㼑㼞㼒㼛㼞㼐㻌㼏㼍㼎㼘㼑㻚㻌㻸㼑㼒㼠㻌㼏㼍㼎㼘㼑㻌㼕㼟㻌㼒㼛㼞㻌㼃㻒㻾㻌㼏㼛㼕㼘㻘㻌㼍㼚㼐㻌㼞㼕㼓㼔㼠㻌㼛㼚㼑㻌㼕㼟㻌㼒㼛㼞㻌㻾㻒㼃㻌㼏㼛㼕㼘㻚㻌㻌㻲㼕㼓㻚㻌㻞㻌㻯㼞㼕㼠㼕㼏㼍㼘㻌㼏㼡㼞㼞㼑㼚㼠㻌㼛㼒㻌㻾㻒㼃㻌㼏㼛㼕㼘㻌㻾㼡㼠㼔㼑㼞㼒㼛㼞㼐㻌㼏㼍㼎㼘㼑㼟㻌㻔㼏㼕㼞㼏㼘㼑㻕㻌㼍㼚㼐㻌㻝㻜㻌㼟㼠㼞㼍㼕㼓㼔㼠㻌㼟㼠㼞㼍㼚㼐㼟㻌㼛㼒㻌㻞㻠㻙㻺㻹㻌㻔㼘㼕㼚㼑㻌㼍㼚㼐㻌 㽢㻕㻚㻌㻌㻲㼕㼓㻚㻌㻟㻌㻰㼑㼓㼞㼍㼐㼍㼠㼕㼛㼚㻌㼛㼒㻌㻶㼏㻌㼐㼡㼑㻌㼠㼛㻌㼏㼍㼎㼘㼕㼚㼓㻚㻌㻌㻲㼕㼓㻚㻌㻠㻌㻼㼔㼛㼠㼛㻌㼛㼒㻌㼏㼛㼙㼜㼘㼑㼠㼑㼐㻌㼃㻒㻾㻌㼐㼛㼡㼎㼘㼑㻌㼜㼍㼚㼏㼍㼗㼑㻌㼏㼛㼕㼘㻚㻌㼀㼍㼎㼘㼑㻌㻝㻌㻯㼛㼕㼘㻌㼜㼍㼞㼍㼙㼑㼠㼑㼞㼟㻌㻌㼃㻒㻾㻌㼏㼛㼕㼘㻌㻾㻒㼃㻌㼏㼛㼕㼘㻌㻯㼛㼕㼘㻌㻵㻚㻰㻚㻘㻌㻻㻚㻰㻚㻌㻒㻌㻴㻌㻔㼙㼙㻕㻌 㻠㻜㻜㻘㻌㻢㻜㻢㻘㻌㻝㻝㻚㻢㻌 㻠㻜㻜㻘㻌㻢㻜㻢㻘㻌㻝㻝㻚㻢㻌㼀㼡㼞㼚㻌㻺㼡㼙㼎㼑㼞㻌
㻞㽢㻟㻢㻌
㻞㽢㻡㻡㻌
㻻㼜㼑㼞㼍㼠㼕㼛㼚㻌㻯㼡㼞㼞㼑㼚㼠㻌㻔㻭㻕㻌
㻢㻜㻜㻌
㻢㻜㻜㻌
㻹㼓㻮㻞㻌㼠㼥㼜㼑㻌㻘㻌㻿㼠㼞㼍㼚㼐㻚㻰㻚㻔㼙㼙㻕㻌 㻟㻜㻙㻺㻹㻘㻌㻜㻚㻤㻟㻌 㻞㻠㻙㻺㻹㻘㻌㻜㻚㻤㻠㻌㻯㼍㼎㼘㼑㻌㼠㼣㼕㼟㼠㻌㼜㼕㼠㼏㼔㻌㻔㼙㼙㻕㻌㻡㻝㻌㻤㻞㻌㻵㼚㼟㼡㼘㼍㼠㼕㼛㼚㻌㻿㻙㼓㼘㼍㼟㼟㻌㼎㼞㼍㼕㼐㻌 㻼㼛㼘㼥㼕㼙㼕㼐㼑㻌㼠㼍㼜㼑㻌㻌

― 127 ―

第95回

2017年度秋季低温工学・超電導学会

2P-p05

マグネット解析

MgB2 䜿䞊䝤䝹䜢⏝䛔䛯䝟䞁䜿䞊䜻䝁䜲䝹䛾㛤Ⓨ䠄䠎䠅
Development of prototype pancake coil using MgB2 cable (2)ᜠᆅ ኴ⣖, ▼ཎ㻌 ⠜, ᑠᯘ㻌 ♸௓, ㉥ᆏ㻌 ཭ᖾ, Ⲩ஭ ᭷Ẽ䠈⚟ᮏ ♸௓, ᐩ⏣ ඃ䠄㕲㐨⥲◊䠅䠗Ỉ㔝 ఙဢ䠈㇂㈅ ๛䠈㧗ᑿ ᬛ᫂䠄ୖᬛ኱䠅䠗ᖹ㔝 ┤ᶞ䠄୰㒊㟁ຊ䠅䠗ᵞ⏣ ᗣ༤䠈᪂෠ Ꮥ࿴䠄KEK䠅䠗℈ᓥ 㧗ኴ㑻䠄๓ᕝ〇సᡤ䠅
ONJI Taiki, ISHIHARA Atsushi, KOBAYASHI Yusuke, AKASAKA Tomoyuki, ARAI Yuuki,
FUKUMOTO Yusuke, TOMITA Masaru (RTRI); MIZUNO Shinya, YAGAI Tsuyoshi, TAKAO Tomoaki (Sophia Univ.);
HIRANO Naoki (Chubu Electric Power), MAKIDA Yasuhiro, SHINTOMI Takakazu (KEK);
HAMAJIMA Takataro (Mayekawa MFG)
E-mail: onji.taiki.67@rtri.or.jp



5䠊ㅰ㎡

㻝䠊䛿䛨䜑䛻㻌
MgB2 䛿䚸㔠ᒓ⣔㉸㟁ᑟయ᭱㧗䛾⣙ 40 K 䛾 Tc 䜢䜒䛱䚸ྛ✀ᮏ◊✲䛿ᅜ❧◊✲㛤Ⓨἲே ⛉Ꮫᢏ⾡᣺⯆ᶵᵓ䠄JST䠅䛾䝁䜲䝹䜈䛾ᛂ⏝䛜᳨ウ䛥䜜䛶䛔䜛䚹ᡃ䚻䛾䜾䝹䞊䝥䛷䛿䚸ఏᡓ␎ⓗ๰㐀◊✲᥎㐍஦ᴗ ඛ➃ⓗపⅣ⣲໬ᢏ⾡㛤Ⓨᑟ෭༷䛻䜘䜛ᩘ 10 kJ ⣭䛾㉸㟁ᑟ㟁ຊ㈓ⶶ䝅䝇䝔䝮(SMES)

䠄ALCA䠅䛾ຓᡂ䜢ཷ䛡䛶ᐇ᪋䛧䛯䚹

䛾㛤Ⓨ䜢┠ᣦ䛧[1, 2]䚸MgB2 ⥺ᮦ䜢⏝䛔䛯䝟䞁䜿䞊䜻䝁䜲䝹䛾タィ䚸〇స䜢⾜䛳䛶䛔䜛䚹ཧ⪃ᩥ⊩㻌䛣䜜䜎䛷ᡃ䚻䛾䜾䝹䞊䝥䛷䛿䚸Hyper Tech ♫䛾⇕ฎ⌮๓䛾[1] T. Hamajima et al., IEEE Trans. Appl. Supercond. 22 (2012)

MgB2 ㉸㟁ᑟ⣲⥺䜢⏝䛔䚸᧍⥺ຍᕤ䛻䜘䜚ᑟయస〇䚸Wind &React (W&R)᪉ᘧ䛷䛾䝟䞁䜿䞊䜻䝁䜲䝹䛾〇స䚸䛺䜙䜃䛻ື

5701704.
[2] T. Shintomi et al., IEEE Trans. Appl. Supercond. 22 (2012)
5701604.

సヨ㦂䜢⾜䛳䛶䛝䛯[3]䚹ᮏ◊✲䛷䛿䚸䝁䜲䝹䛾⮫⏺㟁ὶ್䛾ᗘ䞉☢ሙ౫Ꮡᛶ(Ic-B-T)䛾ホ౯䜢⾜䛳䛯䛾䛷ሗ࿌䛩䜛䚹[3] T. Onji et al., Abstracts of CSSJ Conference 94 (2017) 69.

MgB2 ᑟయ䛿 MgB2 ㉸㟁ᑟ⣲⥺ 8 ᮏ䛸ྠᚄ䛾 Cu ⥺ 4 ᮏ䜢Cu 䛾䝁䜰䛻ᕳ䛝௜䛡䚸ᖜ 5.06 mm䚸ཌ䜏 2.86 mm 䛻䛺䜛䜘䛖䛻᧍䜚⥺ຍᕤ䜢᪋䛧䛶స〇䛧䛯䚹䛺䛚౑⏝䛧䛯 MgB2 ㉸㟁ᑟ⣲⥺䛿 Hyper Tech 〇䛾䜒䛾䛷䛒䜚䚸┤ᚄ 0.07 mm 䛾䝣䜱䝷䝯䞁䝖䛜 30 ᮏ䚸᧍䜚䝢䝑䝏 300 mm 䛷ྠ㍈ 2 ᒙ䛷᧍䜙䜜䛯┤ᚄ 0.83mm 䛾ᮍ⇕ฎ⌮⥺䛷䛒䜛䚹䝟䞁䜿䞊䜻䝁䜲䝹䛿 W&R ᪉ᘧ䛷〇స䛧䚸MgB2 ᑟయ䜢ෆᚄ 200 mm䚸እᚄ 269 mm 䛻ຍᕤ䛧䛯ᚋ䛻䚸⇕ฎ⌮䜢⾜䛔䚸᭱ᚋ䛻ᶞ⬡ྵ౵䜢᪋䛧䛯䚹స 〇 䛧 䛯 䝟䞁 䜿 䞊 䜻 䝁 䜲 䝹 䛿 ෭ ෾ ᶵ 䛻 䜘 䜛 ఏ ᑟ෭༷䛷
20-30 K 䜎䛷෭༷䛧䚸㉸㟁ᑟ䝬䜾䝛䝑䝖䜢⏝䛔䛶እ㒊☢ሙ䜢᭱

 2.0


 1.5


 1.0


 0.5


 0
V (PV / cm)㻞䠊ᐇ㦂᪉ἲ㻌

200

2.0 T

25 K

1.5 T
1PV/cm

0T

400

300



600

500

700

I (A)

኱ 5 T ༳ຍ䛧䛯≧ែ䛷᭱኱ 700 A 䜎䛷䛾㏻㟁䜢⾜䛳䛯䚹

Fig.1 I-V properties of MgB2 prototype pancake coil
under 0, 1.5, and 2.0 T at 25 K.

䝟䞁䜿䞊䜻䝁䜲䝹䛿෭෾ᶵ෭༷䛻䜘䜚䚸⣙ 16 ᫬㛫䛷 20 K௨ୗ䜎䛷෭༷䛩䜛䛣䛸䛻ᡂຌ䛧䛯䚹Fig.1 䛻 25 K 䛷䛾 I-V ≉ᛶ䚸
Fig.2 䛻 Ic-B-T ≉ᛶ䜢♧䛩䛜䚸እ㒊☢ሙ䛾ቑຍ䚸 ᗘ䛾ୖ᪼䛻క䛔⣔⤫ⓗ䛻 Ic 䛜పୗ䛧䛶䛔䜛䛣䛸䚸Ic (@25 K, 1.5 T) >700 A, Ic (@20 K, 3.0 T) ~ 600 A 䛷䛒䜛䛣䛸䛜䜟䛛䛳䛯䚹ᙜ᪥䛿䚸䝟䞁䜿䞊䜻䝁䜲䝹䛾ヲ⣽௙ᵝ䜔䚸௚䛾ᗘ䚸☢ሙ䛻䛚䛡䜛 Ic-B-T ≉ᛶ䛻䛴䛔䛶䜒ሗ࿌䛩䜛ணᐃ䛷䛒䜛䚹㻠䠊⤖ㄽ㻌
MgB2 䛾᧍䜚⥺ᑟయ䜢⏝䛔䛶䝟䞁䜿䞊䜻䝁䜲䝹䜢〇స䛧䛯䛸䛣䜝䚸タィ㏻䜚䛾㏻㟁㟁ὶ್䜢ᚓ䜛䛣䛸䛜䛷䛝䛯䚹௒ᚋ䛿䜘䜚 700 25 K
 600

 500

 400
 300

 200 30K
 100

 0
1.5
 1.0

20 K

Ic (A)

㻟䠊⤖ᯝ䛸⪃ᐹ㻌 㻌

2.0

2.5

3.0

3.5

4.0

B (T)

ᐇᶵ䛻㏆䛔䝁䜲䝹䛾〇స䜢㐍䜑䛶䛔䛟ணᐃ䛷䛒䜛䚹

Fig.2 Ic-B-T properties of MgB2 prototype pancake coil.

― 128 ―

第95回

2017年度秋季低温工学・超電導学会

2P-p06

マグネット解析஧⤌ࡢ࣒࣊ࣝ࣍ࣝࢶࢥ࢖ࣝ࡜ഴᩳ☢ሙࢥ࢖ࣝࢆ฼⏝ࡋࡓ☢ᛶ⢏Ꮚᾋୖࡢᐇ㦂◊✲
Experimental Study on Levitation of Magnetic Particles Using Two Sets of Helmholtz
Coils and a Pair of Gradient Magnetic Field Coilsチ ⯟㸪஧ࣀᐑ ᫭㸪㔝ᮧ᪂୍ ᫂἞኱Ꮫ 
Xu hang, NINOMIYA Akira, NOMURA Shinichi
E-mail:ce61032@meiji.ac.jp㻟㻚 ᐇ㦂⿦⨨䛸ᐇ㦂⤖ᯝ㻌ヨసࡋࡓࢥ࢖ࣝࢆᾮయ❅⣲࡛෭༷ࡋࠊ0.2 g ࡢ◁㕲ࢆ࢔ࢡࣜࣝࢣ࣮ࢫ࡟ᑒධࡋࠊ3 ⤌ࡢࢥ࢖ࣝࡢ୰ᚰ㍈ୖ࡟タ⨨ࡋࡓࠋM ࢥ࢖ࣝࢆ 8 AࠊS ࢥ࢖ࣝࢆ 2.1 A ࡛ບ☢ࡋࠊL ࢥ࢖
ࣝࢆ 0.04 A/sec ࡛ᚎࠎ࡟ቑ☢ࡉࡏࡓࠋ☢ᛶ⢏Ꮚࡢ఩⨨ࡣࣅࢹ࣓࡛࢜࢝ࣛグ㘓ࡋࡓࠋ㘓⏬ᫎീ࠿ࡽࠊL ࢥ࢖ࣝࡢ㏻㟁㟁
ὶࡀ㸯A ࡟฿㐩ࡍࡿ࡜ࠊ☢ᛶ⢏Ꮚࡣࢣ࣮ࢫࡢ୰ᚰ㒊࡟⛣ືࡍࡿࡢࢆ☜ㄆࡋࡓ Fig. 3 ࠋࡋ࠿ࡋࠊ☢ᛶయࡣᾋୖࡋ࡚࠾
ࡽࡎࠊ୰ᚰ㍈࠿ࡽᚄ᪉ྥ࡟ 32 mm ࡢ఩⨨㸦ࢣ࣮ࢫቨ㠃㸧࡟㞟ࡲࡗࡓࠋࡲࡓࠊ/ ࢥ࢖ࣝࡢ㏻㟁㟁ὶࡣタィ್ࡼࡾࡶప
࠸᫬࡟ࠊ☢ᛶ⢏Ꮚࡣ୰ᚰ㒊࡟⛣ືࡋࡓࠋ
ࡑࡇ࡛ࠊIS=-2.1 AࠊIM=7.9 AࠊIL=1.0 A ࡢ᫬ࠊࢥ࢖ࣝࢩ
ࢫࢸ࣒ࡀసࡿ☢ሙศᕸ࡟ࡘ࠸࡚ࠊᾋୖ✵㛫ࡢ୰ᚰ㍈࡜୰ᚰ
㍈࠿ࡽᚄ᪉ྥ࡟ 32 mm ࡢ఩⨨࡛ ᐃࡋࡓࠋ ᐃ⤖ᯝࡼࡾ
Fig. 4 ࠊ୰ᚰ㍈࠿ࡽᚄ᪉ྥ࡟ 32 mm ࡢ఩⨨ࡢ☢᮰ᐦᗘࡢ᪉ࡀࠊ୰ᚰ㒊ࡼࡾࡶᙉ࠸ࡇ࡜ࡀุ᫂ࡋࡓࠋࡲࡓࠊࡑࡢᙧ≧ࡀ㢮ఝࡋ࡚࠸ࡿࡇ࡜ࡼࡾࠊ☢Ẽຊಀᩘ࡟࠾࠸࡚ࡶᙉ࠸ࡇ࡜
ࡀ᥎ᐃ࡛ࡁࠊࡇࡢ఩⨨࡟㞟ࡲࡗࡓࡶࡢ࡜ᛮࢃࢀࡿࠋ㻠㻚 䜎䛸䜑㻌
ᮏ◊✲ࡣࠊ☢Ẽຊࢆ฼⏝ࡋ࡚☢ᛶ⢏Ꮚࢆࢥ࢖ࣝ࠿ࡽ㞳ࡋ࡚ࠊ☢ሙ✵㛫࡟ᾋୖ࣭⛣ືࡉࡏࡿྍ⬟ᛶࢆ᳨ウࡍࡿࡶࡢ࡛
࠶ࡿࠋ௒ᅇࡢᐇ㦂◊✲࡛ࡣࠊᾋୖࡉࡏࡿ࡜ࡇࢁࡲ࡛࡟ࡣ⮳ࡗ࡚ࡣ࠸࡞࠸ࡀࠊ☢▼㛫࡟⛣ືࡉࡏࡿࡇ࡜ࢆ☜ㄆࡍࡿࡇ࡜
ࡀ࡛ࡁࡓࠋ
௒ᚋࡣࠊ☢ሙィ⟬⢭ᗘࢆྥୖࡉࡏ࡚ࠊ✵㛫☢᮰ᐦᗘศᕸ
ࢆ⪃៖ࡋࡓゎᯒࢆᐇ᪋ࡋࠊ☢ᛶ⢏Ꮚࡢᾋୖྍ⬟ᛶᐇ㦂ࢆ᳨

Magnet Flux Density in Z Axis [G]㻞㻚 ᾋୖ☢ሙィ⟬ཬ䜃ヨస䝁䜲䝹䛾タィ್㻌୍ḟඖ☢ሙ୰࡟࠾ࡅࡿ☢Ẽຊ‫ܨ‬௠ >N@ࡢィ⟬ᘧࢆ  ࡟♧
ࡍ>1@ࠋࡇࡇ࡛ࠊ☢ᛶ⢏Ꮚࡢయ✚ܸ>m3@࡜☢໬⋡߯>a.u.@ࡣ୍ᐃ࡜ࡋࠊ✵㛫☢᮰ᐦᗘศᕸ࡟ᑐࡋ࡚ᙳ㡪ࢆཬࡰࡉ࡞࠸࡜
௬ᐃࡋࠊ☢ᛶ⢏Ꮚࡢ⨨࠿ࢀࡿ☢ሙ✵㛫ࡢ☢᮰ᐦᗘ‫>ܤ‬T@࡜ࡍࡿ࡜ࠊ☢Ẽຊ‫ܨ‬௠ >N]ࡣ☢Ẽຊಀᩘ݂௠ >T2/m@ ☢᮰ᐦᗘ‫ܤ‬࡜✵㛫࡟☢Ẽ໙㓄ο‫>ܤ‬T/m@ࡢ✚ ࡟ẚ౛ࡍࡿࠋ
‫ܨ‬௠ = ܸ ή ߯ ή ‫ ܤ‬ή ο‫ܤ‬/ߤ଴        = ܸ ή ߯ ή ݂௠ /ߤ଴ ࣭࣭࣭࣭࣭࣭  ᾋୖ✵㛫ࡢ୰ᚰ࡛☢Ẽຊࡀ᭱኱࡜࡞ࡿ☢᮰ᐦᗘศᕸ
Fig.1 ࢆィ⟬ࡋࡓࠋ࣒࣊ࣝ࣍ࣝࢶࢥ࢖ࣝ  0 ࢥ࢖ࣝ ࡢ୍᪉ࡀసࡿ☢ሙࡣࠊ௚᪉ࡢ࣒࣊ࣝ࣍ࣝࢶࢥ࢖ࣝ  6 ࢥ࢖ࣝࡀసࡿ☢ሙ࡟ᑐࡋ࡚ᴟᛶࢆ㏫ྥࡁ࡟ࡋ࡚࠸ࡿࠋࡇࢀ࡟ࡼࡾࠊ
ᾋୖ✵㛫࡟࠾࠸࡚ࢥ࢖ࣝ㏆ഐࡢ☢ሙࢆୗࡆࡿຠᯝࡀᮇᚅ
࡛ࡁࡿࠋࡇࡢ☢ሙ✵㛫࡟ഴᩳ☢ሙ / ࢥ࢖ࣝ ࢆຍ࠼࡚ࠊࡑ
ࡢഴᩳ☢ሙࡢ኱ࡁࡉࢆㄪᩚࡋࠊᚲせ࡞☢᮰ᐦᗘศᕸࢆᚓࡿࠋ
Fig.2 ࡟ 6࣭0࣭/ ࢥ࢖ࣝࡢᶍᘧᅗ࡜ᇶᮏタィ್ࢆ♧ࡍࠋウࡋ࡚࠸ࡃணᐃ࡛࠶ࡿࠋ
1200



800
Magnet Flux Density
by M coils
Magnet Flux Density by L coils400

Total of Magnetic

flux density0Magnet Flux Density by S coils-400
 -50 -40 -30 -20 -10 0 10 20 30 40 50
Distance from the Center of the Coil System on Z Axis [mm]Fig. 1 Calculation of the magnetic flux density on z axis in thecases of IM = 8 A, Is = -2.1 A and IL = 10.4 A.
Helmholtz Coils
No.2 (S coils)

The Center Axis of
Coil System (Z Axis)
Helmholtz Coils
No.1 (M coils)

Gradient Magnetic Field
Coils (L coils)

Fig. 2 Schematic Illustration and the Key Parameters of the
Coil System.
Iୗ = െ2.1A㻌
I୑ = +7.9A㻌
I୐ = 0.0A㻌

Iୗ = െ2.1A㻌
I୑ = +7.9A㻌
I୐ = +1.0A㻌

32 mm

Magnetic
Sand (0.2 g)

Fig. 3 Displacement of the Magnetic Particles. The L coils are
Excited from 0 A to 1 A.

Magnetic Flux density in Z Axis [G]㻝㻚 䛿䛨䜑䛻㻌
ᮏ◊✲࡛ࡣࠊ஧⤌ࡢ࣒࣊ࣝ࣍ࣝࢶࢥ࢖ࣝ࡜ഴᩳ☢ሙࢥ࢖ࣝࢆ฼⏝ࡋ࡚☢ᛶయࡢᾋୖࡢྍ⬟ᛶࢆ᳨ウࡋ࡚࠸ࡿࠋ┠ᶆࡣࠊ࣒࣊ࣝ࣍ࣝࢶ☢ሙ✵㛫ࡢ୰ᚰ㒊ࡀ☢Ẽຊ᭱኱࡜࡞ࡿࡼ
࠺࡟☢ሙⓎ⏕ࢥ࢖ࣝࢩࢫࢸ࣒ࢆసࡿࡇ࡜࡛࠶ࡿࠋ௒ᅇࡣࠊ⡆༢࡞  ḟඖ☢ሙィ⟬࡟ࡼࡾࢥ࢖ࣝᙧ≧ࢆ᳨ウࡋ࡚ヨసࡋࠊࡇࢀࢆ⏝࠸࡚ᾋୖྍ⬟ᛶᐇ㦂ࢆᐇ᪋ࡋࡓࠋࡇࡇ࡛ࡣࠊ
ࡑࡢ⤖ᯝ࡟ࡘ࠸࡚ሗ࿌ࡍࡿࠋ

820

32mm below the Z axis
800
Z axis780-12 -10

-8

-6 -4
-2
0
2
4
6
Distance From the 0 of Z Axis[mm]

8

10

12

Fig. 4 Magnetic Flux Density Measurements on Z Axis in thecase of IS=-2.1A, IM=7.9A, IL=1.0A.
ཧ⪃ᩥ⊩㻌
1. N㸬Saho㸪M㸬Ono㸸Abstracts of CSJ Conference,Vol.93(2016) p.64

― 129 ―

第95回

2017年度秋季低温工学・超電導学会

2P-p07

超電導機器 (1)㟁Ẽ᥎㐍⯟✵ᶵ⏝ 㻟㻚㻢㻹㼃 ㉸㟁ᑟ䝰䞊䝍䛾᭱㐺タィ㻌㻻㼜㼠㼕㼙㼍㼘㻌㻰㼑㼟㼕㼓㼚㻌㼛㼒㻌㼍㻌㻟㻚㻢㻌㻹㼃㻌㻿㼡㼜㼑㼞㼏㼛㼚㼐㼡㼏㼠㼕㼚㼓㻌㻹㼛㼠㼛㼞㻌㼒㼛㼞㻌㻱㼘㼑㼏㼠㼞㼕㼏㻙㼐㼞㼕㼢㼑㻌㻭㼑㼞㼛㼜㼞㼛㼜㼡㼘㼟㼕㼛㼚㻌㻌Ꮝ㻌 ⥔㩃䠈ᑎᑿ㻌 ᝆ䠈኱ᓮ㻌 ༤அ䠄ᮾ኱䠅㻌㻷㻻㻺㻳㻌㼃㼑㼕㼘㼡㻘㻌㼀㻱㻾㻭㻻㻌㼅㼡㼠㼍㼗㼍㻘㻌㻻㻴㻿㻭㻷㻵㻌㻴㼕㼞㼛㼥㼡㼗㼕㻌㻔㼁㼚㼕㼢㻚㻌㼀㼛㼗㼥㼛㻕㻌㻱㻙㼙㼍㼕㼘㻦㻌㼗㼛㼚㼓㼣㼑㼕㼘㼡㻬㼛㼔㼟㼍㼗㼕㻚㼗㻚㼡㻙㼠㼛㼗㼥㼛㻚㼍㼏㻚㼖㼜㻌㻌㼀㼍㼎㼘㼑㻌㻵㻌
㻝㻚㻌㻵㼚㼠㼞㼛㼐㼡㼏㼠㼕㼛㼚㻌㻯㼛㼙㼙㼛㼚㻌㼟㼜㼑㼏㼕㼒㼕㼏㼍㼠㼕㼛㼚㻌㼒㼛㼞㻌㼍㼘㼘㻌㼏㼍㼟㼑㼟㻌㻱㼘㼑㼏㼠㼞㼕㼏㻙㼐㼞㼕㼢㼑㻌 㻭㼑㼞㼛㼜㼞㼛㼜㼡㼘㼟㼕㼛㼚㻌 㻔㻱㻭㻕㻌 㼕㼟㻌 㼛㼚㼑㻌 㼛㼒㻌 㼠㼔㼑㻌 㼗㼑㼥㻌
3DUDPHWHUV
9DOXH
㼠㼑㼏㼔㼚㼛㼘㼛㼓㼕㼑㼟㻌㼕㼚㻌㼐㼑㼟㼕㼓㼚㻌㼛㼒㻌㼒㼡㼠㼡㼞㼑㻌㼍㼕㼞㼏㼞㼍㼒㼠㼟㻌㼎㼑㼏㼍㼡㼟㼑㻌㼠㼔㼑㻌㼑㼘㼑㼏㼠㼞㼕㼏㻌
2XWSXWSRZHU ܲ 0: 㼙㼛㼠㼛㼞㻌 㼐㼞㼕㼢㼑㻌 㼔㼍㼟㻌 㼔㼕㼓㼔㻌 㼑㼒㼒㼕㼏㼕㼑㼚㼏㼥㻌 㼍㼚㼐㻌 㼠㼔㼑㻌 㻱㻭㻌 㼣㼛㼡㼘㼐㻌 㼞㼑㼐㼡㼏㼑㻌
/LQHYROWDJHܷ
9㼛㼜㼑㼞㼍㼠㼕㼛㼚㼍㼘㻌㼏㼛㼟㼠㻌㼍㼚㼐㻌㼜㼛㼘㼘㼡㼠㼍㼚㼠㻌㼑㼙㼕㼟㼟㼕㼛㼚㻌㼇㻝㼉㻚㻌㻴㼛㼣㼑㼢㼑㼞㻘㻌㼕㼠㻌㼣㼛㼡㼘㼐㻌௅
/LQHFXUUHQW ‫ܫ‬௅  $ 㼔㼍㼢㼑㻌㼟㼛㼙㼑㻌㼜㼞㼛㼎㼘㼑㼙㼟㻌㼘㼕㼗㼑㻌㼠㼔㼑㻌㼏㼞㼡㼕㼟㼕㼚㼓㻌㼞㼍㼚㼓㼑㻌㼍㼚㼐㻌㼜㼍㼥㼘㼛㼍㼐㻚㻌㼀㼛㻌
)UHTXHQF\ ݂ +] 㼟㼛㼘㼢㼑㻌 㼠㼔㼑㼟㼑㻌 㼕㼟㼟㼡㼑㼟㻘㻌 㼠㼔㼑㻌 㼕㼚㼠㼞㼛㼐㼡㼏㼠㼕㼛㼚㻌 㼛㼒㻌 㼟㼡㼜㼑㼞㼏㼛㼚㼐㼡㼏㼠㼕㼚㼓㻌
5HYROYLQJVSHHG ܰ USP 㼞㼛㼠㼍㼠㼕㼚㼓㻌 㼙㼍㼏㼔㼕㼚㼑㼟㻌 㻔㼙㼛㼠㼛㼞㼟㻌 㼍㼚㼐㻌 㼓㼑㼚㼑㼞㼍㼠㼛㼞㼟㻕㻌 㼔㼍㼢㼑㻌 㼎㼑㼑㼚㻌
1XPEHURISROHSDLUV ‫݌‬㼜㼞㼛㼜㼛㼟㼑㼐㻌 㼇㻞㼉㻌 㼎㼑㼏㼍㼡㼟㼑㻌 㼕㼠㻌 㼣㼕㼘㼘㻌 㼍㼘㼘㼛㼣㻌 㼠㼔㼑㻌 㼢㼑㼞㼥㻌 㼟㼠㼞㼕㼚㼓㼑㼚㼠㻌 㼣㼑㼕㼓㼔㼠㻌ଶ&XUUHQWGHQVLW\RIILHOGZLQGLQJ
‫ܬ‬
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ൈ ͳͲ଼ ௙㼍㼚㼐㻌㼢㼛㼘㼡㼙㼑㻌㼏㼛㼚㼟㼠㼞㼍㼕㼚㼠㼟㻌㼕㼙㼜㼛㼟㼑㼐㻌㼎㼥㻌㼠㼔㼑㻌㼍㼕㼞㼎㼛㼞㼚㼑㻌㼍㼜㼜㼘㼕㼏㼍㼠㼕㼛㼚㻚㻌㻌㻿㼡㼜㼑㼞㼏㼛㼚㼐㼡㼏㼠㼛㼞㼟㻌 㼏㼍㼚㻌 㼏㼍㼞㼞㼥㻌 㼑㼘㼑㼏㼠㼞㼕㼏㻌 㼏㼡㼞㼞㼑㼚㼠㻌 㼍㼠㻌 㼔㼕㼓㼔㻌 㼏㼡㼞㼞㼑㼚㼠㻌㻟㻚㻌㻾㼑㼟㼡㼘㼠㻌㼛㼒㻌㼛㼜㼠㼕㼙㼕㼦㼍㼠㼕㼛㼚㻌㼐㼑㼚㼟㼕㼠㼥㻌㼣㼕㼠㼔㻌㼝㼡㼕㼠㼑㻌㼘㼛㼣㻌㼞㼑㼟㼕㼟㼠㼍㼚㼏㼑㻌㼠㼔㼡㼟㻌㼑㼚㼍㼎㼘㼕㼚㼓㻌㼘㼕㼓㼔㼠㻌㼙㼍㼏㼔㼕㼚㼑㼟㻚㻌㻵㼚㻌 㼠㼔㼕㼟㻌 㼜㼍㼜㼑㼞㻘㻌 㼜㼛㼣㼑㼞㻌 㼐㼑㼚㼟㼕㼠㼥㻘㻌 㼠㼔㼑㻌 㼑㼘㼑㼏㼠㼞㼕㼏㼍㼘㻌 㼘㼛㼟㼟㻌 㼍㼚㼐㻌 㼠㼔㼑㻌㻭㼏㼏㼛㼞㼐㼕㼚㼓㻌㼠㼛㻌㼜㼞㼑㼢㼕㼛㼡㼟㻌㼞㼑㼟㼑㼍㼞㼏㼔㼑㼟㻘㻌㼍㻌㼟㼡㼜㼑㼞㼏㼛㼚㼐㼡㼏㼠㼕㼚㼓㻌㼙㼛㼠㼛㼞㻌㼕㼟㻌㼠㼛㼞㼝㼡㼑㻌
㼞㼕㼜㼜㼘㼑㻌 㼍㼞㼑㻌 㼏㼛㼚㼟㼕㼐㼑㼞㼑㼐㻌 㼑㼝㼡㼍㼘㼘㼥㻌 㼕㼙㼜㼛㼞㼠㼍㼚㼠㻘㻌 㼣㼔㼕㼏㼔㻌 㼕㼟㻌㼟㼡㼜㼜㼛㼟㼑㼐㻌 㼠㼛㻌 㼍㼏㼔㼕㼑㼢㼑㻌 㼜㼛㼣㼑㼞㻌 㼐㼑㼚㼟㼕㼠㼥㻌 㼏㼛㼙㼜㼍㼞㼍㼎㼘㼑㻌 㼠㼛㻌 㼠㼡㼞㼎㼕㼚㼑㻌㼞㼑㼍㼘㼕㼦㼑㼐㻌㼡㼟㼕㼚㼓㻌㼣㼑㼕㼓㼔㼠㼑㼐㻌㼟㼡㼙㻌㼍㼜㼜㼞㼛㼍㼏㼔㼑㼟㻚㻌㼑㼚㼓㼕㼚㼑㼟㻌㼕㼚㻌㼑㼤㼏㼑㼟㼟㻌㼛㼒㻌㻝㻜㻙㻞㻜㻌㼗㼃㻛㼗㼓㻌㼇㻟㼉㻚㻌㻭㼚㼐㻘㻌㼠㼛㻌㼞㼑㼐㼡㼏㼑㻌㼘㼛㼟㼟㻌㼍㼚㼐㻌㼀㼔㼑㻌㼒㼕㼑㼘㼐㻌㼣㼕㼚㼐㼕㼚㼓㻌㼕㼟㻌㼣㼛㼡㼚㼐㼑㼐㻌㼣㼕㼠㼔㻌㼅㻮㻯㻻㻌㼠㼍㼜㼑㼟㻌㼠㼔㼍㼠㻌㼑㼚㼐㼡㼞㼑㻌㼠㼛㻌㼕㼙㼜㼞㼛㼢㼑㻌㼠㼔㼑㻌㼜㼛㼣㼑㼞㻌㼐㼑㼚㼟㼕㼠㼥㻘㻌㼣㼔㼕㼏㼔㻌㼕㼟㻌㼙㼛㼞㼑㻌㼕㼙㼜㼛㼞㼠㼍㼚㼠㻌㼒㼛㼞㻌㻱㻭㻘㻌㼔㼕㼓㼔㻌㼏㼡㼞㼞㼑㼚㼠㻌㼐㼑㼚㼟㼕㼠㼥㻘㻌㼍㼚㼐㻌㼠㼔㼑㻌㼎㼍㼏㼗㻌㼥㼛㼗㼑㻌㼙㼍㼠㼑㼞㼕㼍㼘㻌㼕㼟㻌㼘㼛㼣㻌㼕㼞㼛㼚㻙㻌㼠㼔㼑㻌㼛㼜㼠㼕㼙㼕㼦㼍㼠㼕㼛㼚㻌㼛㼒㻌㼠㼔㼑㻌㼐㼑㼟㼕㼓㼚㻌㼕㼟㻌㼕㼚㼐㼕㼟㼜㼑㼚㼟㼍㼎㼘㼑㻚㻌㻵㼚㻌㼠㼔㼕㼟㻌㼜㼍㼜㼑㼞㻘㻌㼘㼛㼟㼟㻌 㼟㼠㼑㼑㼘㻌 㼟㼔㼑㼑㼠㻚㻌 㻯㼛㼚㼠㼕㼚㼡㼛㼡㼟㻌 㼍㼘㼘㼛㼣㼍㼎㼘㼑㻌 㼏㼡㼞㼞㼑㼚㼠㻌 㼐㼑㼚㼟㼕㼠㼥㻌 㼛㼒㻌㼍㻌 㻟㻚㻢㻌 㻹㼃㻌 㼟㼡㼜㼑㼞㼏㼛㼚㼐㼡㼏㼠㼕㼚㼓㻌 㼙㼛㼠㼛㼞㻌 㼐㼑㼟㼕㼓㼚㻌 㼛㼜㼠㼕㼙㼕㼦㼑㼐㻌 㼎㼥㻌 㼠㼔㼑㻌㼍㼞㼙㼍㼠㼡㼞㼑㻌㼣㼕㼚㼐㼕㼚㼓㼟㻌㼏㼔㼍㼚㼓㼑㼟㻌㼣㼕㼠㼔㻌㼠㼔㼑㻌㼏㼛㼛㼘㼕㼚㼓㻌㼏㼛㼚㼐㼕㼠㼕㼛㼚㻌㼟㼛㻌㼠㼔㼑㻌㻲㼕㼚㼕㼠㼑㻙㻱㼘㼑㼙㼑㼚㼠㻌 㻭㼚㼍㼘㼥㼟㼕㼟㻌 㻔㻲㻱㻹㻕㻌 㼍㼚㼐㻌 㼠㼔㼑㻌 㻹㼡㼘㼠㼕㻙㻻㼎㼖㼑㼏㼠㼕㼢㼑㻌㼑㼒㼒㼑㼏㼠㻌㼕㼟㻌㼏㼛㼚㼟㼕㼐㼑㼞㼑㼐㻌㼍㼟㻌㼣㼑㼘㼘㻚㻌㻳㼑㼚㼑㼠㼕㼏㻌 㻭㼘㼓㼛㼞㼕㼠㼔㼙㻌 㻔㻹㻻㻳㻭㻕㻌 㼒㼛㼞㻌 㻱㻭㻌 㼕㼟㻌 㼜㼞㼑㼟㼑㼚㼠㼑㼐㻚㻌 㻭㻌㻌㼏㼛㼙㼎㼕㼚㼍㼠㼕㼛㼚㻌㼛㼒㻌㻲㻱㻹㻌㼍㼚㼐㻌㼍㼚㻌㼛㼜㼠㼕㼙㼕㼦㼍㼠㼕㼛㼚㻌㼍㼘㼓㼛㼞㼕㼠㼔㼙㻌㼕㼟㻌㼞㼑㼓㼍㼞㼐㼑㼐㻌㼀㼍㼎㼘㼑㻌㻵㻵㻌㼍㼟㻌㼐㼕㼞㼑㼏㼠㻌㼛㼜㼠㼕㼙㼕㼦㼍㼠㼕㼛㼚㻌㼙㼑㼠㼔㼛㼐㻌㼣㼕㼠㼔㻌㼔㼕㼓㼔㻌㼍㼏㼏㼡㼞㼍㼏㼥㻚㻌㼀㼔㼑㻌㻹㻻㻳㻭㻌㻾㼑㼟㼡㼘㼠㻌㼛㼒㻌㼕㼚㼕㼠㼕㼍㼘㻌㼏㼍㼟㼑㼟㻌㼍㼚㼐㻌㼛㼜㼠㼕㼙㼕㼦㼑㼐㻌㼏㼍㼟㼑㼟㻌㼔㼍㼟㻌㼎㼑㼑㼚㻌㼡㼟㼑㼐㻌㼕㼚㻌㼠㼔㼑㻌㼛㼜㼠㼕㼙㼕㼦㼍㼠㼕㼛㼚㻌㼠㼛㻌㼍㼏㼝㼡㼕㼞㼑㻌㼠㼔㼑㻌㼐㼑㼟㼕㼓㼚㻌㼛㼒㻌㼍㻌
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第95回

2017年度秋季低温工学・超電導学会

2P-p08

超電導機器 (1)ゎᯒᘧ䛻ᇶ䛵䛟⯟✵᪑ᐈᶵྥ䛡㟁Ẽ᥎㐍⏝㉸㟁ᑟ䝰䞊䝍䛾㟁☢タィ㻌㻱㼘㼑㼏㼠㼞㼛㼙㼍㼓㼚㼑㼠㼕㼏㻌㻰㼑㼟㼕㼓㼚㻌㼛㼒㻌㻿㼡㼜㼑㼞㼏㼛㼚㼐㼡㼏㼠㼕㼚㼓㻌㻹㼛㼠㼛㼞㼟㻌㼒㼛㼞㻌㻱㼘㼑㼏㼠㼞㼕㼏㻌㻭㼕㼞㼏㼞㼍㼒㼠㻌㻼㼞㼛㼜㼡㼘㼟㼕㼛㼚㻌 㻌㻮㼍㼟㼑㼐㻌㼛㼚㻌㻭㼚㼍㼘㼥㼠㼕㼏㼍㼘㻌㻲㼛㼞㼙㼡㼘㼍㻌㻌ᑎᑿ㻌 ᝆ䠈㻌 ኱ᓮ㻌 ༤அ䠄ᮾ኱䠅㻌㼀㻱㻾㻭㻻㻌㼅㼡㼠㼍㼗㼍㻌㼍㼚㼐㻌㻻㻴㻿㻭㻷㻵㻌㻴㼕㼞㼛㼥㼡㼗㼕㻌㻔㼁㼚㼕㼢㻚㻌㼛㼒㻌㼀㼛㼗㼥㼛㻕㻌 㻌㻱㻙㼙㼍㼕㼘㻦㻌㼥㻚㼠㼑㼞㼍㼛㻬㼛㼔㼟㼍㼗㼕㻚㼗㻚㼡㻙㼠㼛㼗㼥㼛㻚㼍㼏㻚㼖㼜㻌㻌㻝䠊ࡣࡌࡵ࡟
㏆ᖺ䚸⯟✵᪑ᐈᶵ䛾㐠⾜ᩘ䛜ቑຍ䛩䜛୍᪉䚸䝆䜵䝑䝖䜶䞁䝆䞁㒊䛷䛾໬▼⇞ᩱᾘ㈝䛻క䛖 ᐊຠᯝ䜺䝇䛾ቑຍ䛜ᠱᛕ䛥䜜䛶䛔䜛䚹䛣䛾୰䛷㟁Ẽ᥎㐍ᘧ⯟✵᪑ᐈᶵ䛜ὀ┠䛥䜜䛶䛚䜚䚸Ḣ⡿ㅖᅜ䛾௻ᴗ䞉኱Ꮫ䛾◊✲䜾䝹䞊䝥䛜◊✲䜢㐍䜑䛶䛔䜛㼇㻝㼉䚹㟁Ẽ᥎㐍⏝䛾䝰䞊䝍䛿⌧ᅾ 㻡㻚㻜㻌 㼗㼃㻛㼗㼓 䛜Ọஂ☢▼ᆺྠᮇ䝰䞊䝍䛻䜘䛳䛶㐩ᡂ䛥䜜䛶䛔䜛䛜䚸ᑗ᮶ⓗ䛻䛿 㻞㻜㻌㼗㼃㻛㼗㼓௨ୖ䛾㐩ᡂ䛜ᮃ䜎䜜䛶䛔䜛䚹ᮏⓎ⾲䛷䛿䚸ゎᯒᘧ䜢⏝䛔䛶㟁Ẽ᥎㐍⯟✵᪑ᐈᶵ⏝䛾඲㉸㟁ᑟ䝰䞊䝍䛾㟁☢タィ䜢⾜䛔䚸ᵓ㐀ཬ䜃ฟຊᐦᗘ䛾⪃ᐹ䜢⾜䛖䚹䜎䛯᭷㝈せ⣲ἲ䛻䜘䜚஺ὶᦆኻཬ䜃㕲ᦆ䜢⟬ฟ䛧䚸ᦆኻపῶ䛻㛵䛧䛶⪃ᐹ䜢⾜䛖䚹㻌㻞䠊㉸㟁ᑟ䝰䞊䝍䝰䝕䝹ཬ䜃ゎᯒᘧ㻌
ᮏⓎ⾲䛷䛿䚸」ᩘ䛾㉸㟁ᑟ䝰䞊䝍䜢ศᩓ㓄⨨䛧䛶᥎㐍ຊ䜢ᚓ䜛䛣䛸䜢๓ᥦ䛸䛧䛶䛚䜚䚸⯟✵ᶵ䛿 㻝㻤㻜 ே஌䜚䚸㞳㝣᫬᭱኱ฟຊ 㻠㻠㻌 㻹㼃 䜢㐩ᡂ䛩䜛䛣䛸䜢┠ᶆ䛸䛧㼇㻞㼉䚸䛣䛾ฟຊ䜢㐩ᡂ䛩䜛䛯䜑䛻䝰䞊䝍䛾」ᩘศᩓ㓄⨨䜢๓ᥦ䛸䛩䜛䚹㼀㼍㼎㼘㼑㻌㻝 䛻䝰䞊䝍䛾ᇶᮏ≉ᛶ䜢♧䛩䚹䝰䞊䝍ᐜ㔞 㻼㻹 䛿 㻞㻚㻜㻙㻘㻌㻠㻚㻜㻙㻘㻌㻢㻚㻜㻌㻹㼃䛾 㻟 ㏻䜚䜢⪃䛘䜛䚹඲㉸㟁ᑟ䝰䞊䝍䛿⏺☢ᕳ⥺䛻㻔㻾㻱㻕㻮㻯㻻 ⥺ᮦ䚸㟁ᶵᏊᕳ⥺䛻 㻹㼓㻮㻞 ⥺ᮦ䜢⏝䛔䜛䚹䜎䛯ᅇ㌿㏿ᗘ 㻡㻜㻜㻜㻌㼞㼜㼙䚸⥺㛫㟁ᅽ䛿 㻝㻚㻠㻝㻌㼗㼂㻌㼇㻝㼉䚸෭༷ ᗘ 㻞㻜㻌㻷 䛸タᐃ䛩䜛䚹㻌㼀㼍㼎㼘㼑㻌㻝㻚㻌㻹㼛㼠㼛㼞㻌㻿㼜㼑㼏㼕㼒㼕㼏㼍㼠㼕㼛㼚㼟㻌
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Coils Windings Yokeg1㻌㻲㼕㼓㻚㻌㻝㻚㻌㻭㼚㼍㼘㼥㼠㼕㼏㼍㼘㻌㼙㼛㼐㼑㼘㻌㼛㼒㻌㼒㼡㼘㼘㼥㻌㼟㼡㼜㼑㼞㼏㼛㼚㼐㼡㼏㼠㼕㼚㼓㻌㼙㼛㼠㼛㼞㻌䛾䝁䜲䝹ᕳᩘ㻘㻌 㻵㼟㻌 㻔㻭㻕㻦㻌 㟁ᶵᏊ㟁ὶ䛷䛒䜛䚹ୖᘧ䛷䚸㻮㼟 ཬ䜃 㻭㼟䜢ኚ໬䛥䛫䛶䛭䛾ഴྥ䜢ㄪ䜉䜛䚹䜎䛯ฟຊᐦᗘ䛾⟬ฟ䛻䛿䚸䝞䝑䜽䝶䞊䜽䚸㻹㼓㻮㻞 ⥺ᮦ䛾㔜㔞䜢⪃៖䛧䚸䛭䛾௚㒊ศ䠄ᵓ㐀ᮦཬ䜃ᅇ㌿Ꮚ➼䠅䛿๓⪅஧䛴䛾 㻡㻜㻑䛸௬ᐃ䛩䜛䚹㻌㻟䠊ゎᯒ⤖ᯝ㻌㻲㼕㼓㻚㻌㻞 䛻 㻢㻚㻜㻌㻹㼃 ᶵ䛾ሙྜ䛾㟁☢タィ⤖ᯝ䜢♧䛩䚹ᮏ䜾䝷䝣䛿㻔㻢㻕䛷 㻮㼟㻌 㻩㻌 㻜㻚㻡㻌 㼀 䛸ᅛᐃ䛧䛯䜿䞊䝇䛾ฟຊᐦᗘ䛷䛒䜛䚹䛔䛪䜜䛾ሙྜ䜒㟁Ẽ⿦Ⲵ䜢 㻞㻜㻜㻌 㼗㻭㻛㼙 ௨ୖ䛻ቑຍ䛥䛫䜛䛣䛸䛷㻞㻜㻌 㼗㼃㻛㼗㼓 䜢㐩ᡂ䛩䜛䛣䛸䛿ྍ⬟䛷䛒䜛䛜䜰䞁䝨䜰䝍䞊䞁䛾ቑຍ䛻䜘䜛஺ὶᦆኻ䛾ቑຍ䛸䛾䝖䝺䞊䝗䜸䝣䛸䛺䜛䚹䛩䛺䜟䛱 㻢ᴟ䛾ሙྜ䛿㟁Ẽ⿦Ⲵ䛜 㻝㻜㻜㻌 㼗㻭㻛㼙 䜸䞊䝎䞊䛷ప䛟䛺䜛䜒䛾䛾䚸ᅇ㌿࿘Ἴᩘ䛜 㻞㻠㻥㻌㻴㼦 䛸䛺䜚 㻞 ᴟᶵ䠄㻤㻟㻌㻴㼦䠅䛾 㻟 ಸ䛸䛺䜛䛯䜑䚸஺ὶᦆኻ䛾ほⅬ䛛䜙୙฼䛺ᵓ㐀䛸䛺䜛䚹䜎䛯⌧ᅾ䛾୍⯡ⓗ䛺㻹㼓㻮㻞 ⥺ᮦ䜢౑⏝䛧䛯ሙྜ䛻䛿 㻞 ᴟᵓ㐀䛷䜒ᦆኻ䛜ᐃ᱁䛾⣙㻞㻜㻌 㻑䛸䛺䜛䛯䜑䚸ᑗ᮶ⓗ䛻⥺ᮦᚄ䜢ᅄศ䛾୍⛬ᗘ䜎䛷పῶ䛩䜛ᚲせ䛜䛒䜛㼇㻞㼉䚹㻌㻌 㻲㼕㼓㻚㻝 䛻䝰䞊䝍䛾ゎᯒ䝰䝕䝹䜢♧䛩䚹㼓㻝㻘㻌㼓㻞 䛿䛭䜜䛮䜜䝞䝑䜽䝶䞊䜽㻙㟁ᶵᏊ䝁䜲䝹ཬ䜃ᅛᐃᏊ㻙ᅇ㌿Ꮚ䛾ᶵᲔⓗ䛺䜼䝱䝑䝥䛷䛒䜚䚸௒ᅇ䛿䛭䜜䛮䜜 㻡㻜㻌㼙㼙㻌 ཬ䜃 㻞㻜㻌㼙㼙 䛻タᐃ䛩䜛䚹䛿䛨䜑䛻䝰䞊䝍እᚄ䠄㻞㻾㻢䠅䜢ᐃ䜑䚸䛭䜜䜢‶䛯䛩䜘䛖䛺 㻰 䜢୚䛘䜛䛣䛸䛷䚸䝰䞊䝍䛾ྛ㒊༙ᚄ 㻾㻞䡚㻾㻢 䛿௨ୗ䛾ᵝ䛻ồ䜎䜛䚹䛿䛨䜑䛿㟁ᶵᏊ㟁ὶ㒊ศ䜢䝅䞊䝖㟁ὶ䛸䛧䚸㻾㻠㻌 䍦㻌 㻰㻛㻞 䛸䛧䛶ィ⟬
䜢⾜䛖䚹㻌

DB
pB

t

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S

 

C

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2R D  2t  2 g

R R t
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 g
6

 

1

5

 

6

 
R4 R6 t 1
䛯䛰䛧䚸㻮㼟㻌 㻔㼀㻕㻦㻌 䜼䝱䝑䝥☢᮰ᐦᗘἼ㧗್㻘㻌 㻮㼏㻌 㻔㼀㻕㻦㻌 㕲ᚰෆ㣬࿴☢᮰ᐦᗘ䛷䛒䜛䚹㟁ᶵᏊ䝁䜲䝹㒊ศ䛾ཌ䜏䛿䚸ᐜ㔞ู䛻ᕳᩘ䛸㟁ᶵᏊ䝁䜲䝹㟁ὶᐦᗘ➼䜢ィ⟬䛧䛯ୖ䛷 㻾㻟 䛜⟬ฟ䛥䜜䚸㻌 R R g࡜ồࡲࡿࠋ䜎䛯୍⯡䛻ᅇ㌿ᶵฟຊ䛿௨ୗ䛾ᵝ䛻⾲䛥䜜䜛䚹㻌ʌ uk u B u A u D ul u N
P
 
60
2
6N I
A
 
S D 
䛯䛰䛧䚸㼗㼣㻌 㻔㻩㻌 㻜㻚㻥㻞㻕㻦㻌 ᕳ⥺ಀᩘ㻘㻌 㻭㼟㻌 㻔㻭㻛㼙㻕㻦㻌 ẚ㟁Ẽ⿦Ⲵ㻘㻌 㻰㻌㻔㼙㻕㻦㻌 㟁ᶵᏊ䝁䜲䝹㒊䛾ᖹᆒ┤ᚄ㻘㻌 㼘㼑㼒㼒㻌㻔㼙㻕㻦㻌 ᭷ຠ㛗㻘㻌 㻺㻯㼛㼕㼘㻦㻌㻝 ┦
䛒䛯䜚
2

3

2

2

2

M

w

S

S

Coil

S

rot

eff

S

㻌
㻲㼕㼓㻚㻌㻞㻚㻌㻻㼡㼠㼜㼡㼠㻌㼐㼑㼚㼟㼕㼠㼥㻌㼛㼒㻌㻢㻚㻜㻌㻹㼃㻌㼏㼘㼍㼟㼟㻌㼒㼡㼘㼘㼥㻌㼟㼡㼜㼑㼞㼏㼛㼚㼐㼡㼏㼠㼕㼚㼓㻌㼙㼛㼠㼛㼞㼟㻌㼍㼟㻌㼍㻌㼒㼡㼚㼏㼠㼕㼛㼚㻌㼛㼒㻌㼑㼘㼑㼏㼠㼞㼕㼏㻌㼘㼛㼍㼐㻦㻌㻭㼟㻚㻌㻠䠊䜎䛸䜑㻌
ᮏ◊✲䛷䛿㧗ฟຊᐦᗘ䛾㟁Ẽ᥎㐍⯟✵᪑ᐈᶵ⏝඲㉸㟁ᑟ䝰䞊䝍䛾㟁☢タィ䜢⾜䛳䛯䚹㻞㻜㻌 㼗㼃㻛㼗㼓 ௨ୖ䛾ฟຊᐦᗘ䛸㧗ຠ⋡䜢ྠ᫬䛻㐩ᡂ䛩䜛䛻䛿䚸ẚ☢Ẽ㻛ẚ㟁Ẽ⿦Ⲵ䛾㐺ษ䛺㑅ᢥ䛸⥺ᮦ䛾⣽⥺໬䛸䛔䛖䚸ᶵჾタィཬ䜃ᮦᩱ㛤Ⓨ䛾୧㠃䛛䜙䛾䜰䝥䝻䞊䝏䛜ᚲせ䛸䛺䜛䚹㻌ㅰ㎡㻌㻌 ᮏ◊✲䛾୍㒊䛿䚸බ┈㈈ᅋἲே㻌 ỌᏲ㈈ᅋ䛾䛂◊✲ຓᡂ㻞㻜㻝㻣䛃䜢ཷ䛡䛶⾜䜟䜜䛯䜒䛾䛷䛒䜛䚹㻌ཧ⪃ᩥ⊩㻌㻝㻚㻌 㻯㻚㻌㻱㻚㻌㻶㼛㼚㼑㼟㻘㻌㼑㼠㻌㼍㼘㻚㻦㻌㻵㻱㻱㻱㻌㼀㼞㼍㼚㼟㻚㻌㻭㼜㼜㼘㻚㻌㻿㼡㼜㼑㼞㼏㼛㼚㼐㻚㻘㻌㼂㼛㼘㻚㻞㻢㻘㻌㻺㼛㻚㻢㻌㻔㻞㻜㻝㻢㻕㻘㻌㼜㼜㻚㻌㻝㻙㻥㻌㻞㻚㻌 㼅㻚㻌 㼀㼑㼞㼍㼛㻘㻌 㼑㼠㻌 㼍㼘㻚㻦㻌 㻼㼞㼑㼟㼑㼚㼠㼍㼠㼕㼛㼚㻌 㼕㼚㻌 㻱㼁㻯㻭㻿㻌 㻞㻜㻝㻣㻘㻌 㻠㻸㻼㻢㻙㻝㻜㻌㻔㻞㻜㻝㻣㻕㻌

― 131 ―

第95回

2017年度秋季低温工学・超電導学会

2P-p09

超電導機器 (1)❧᪉య䝞䝹䜽䜢౑䛳䛯┠ⓗ䛻ᛂ䛨䛯᭱㐺㓄⨨䛻䛴䛔䛶䛾◊✲㻚㻌㻿㼠㼡㼐㼥㻌㼛㼚㻌㼛㼜㼠㼕㼙㼍㼘㻌㼜㼘㼍㼏㼑㼙㼑㼚㼠㻌㼍㼏㼏㼛㼞㼐㼕㼚㼓㻌㼠㼛㻌㼜㼡㼞㼜㼛㼟㼑㻌㼡㼟㼕㼚㼓㻌㼏㼡㼎㼕㼏㻌㼎㼡㼘㼗㻚㻌㻌ᒣᓊ㻌 ୍ே䠄ᶓ὾ᅜ❧኱Ꮫ䠅㻌㼅㻭㻹㻭㻳㻵㻿㻴㻵㻌㻷㼍㼦㼡㼔㼕㼠㼛㻌㻔㼅㼛㼗㼛㼔㼍㼙㼍㻌㻺㼍㼠㼕㼛㼚㼍㼘㻌㼁㼚㼕㼢㼑㼞㼟㼕㼠㼥㻕㻌㻱㻙㼙㼍㼕㼘㻦㻌㼥㼍㼙㼍㼓㼕㼟㼔㼕㻙㼗㼍㼦㼡㼔㼕㼠㼛㻙㼟㼐䠜㼥㼚㼡㻚㼍㼏㻚㼖㼜㻌㻌☢᮰䛾䝢䞊䜽್䛜᭱኱䛸䛺䜛䛣䛸䛸䛧䛯䠊䛣䛾ィ⟬䛻䜘䜚䠈㓄⨨㻝䠊䛿䛨䜑䛻㻌
䝟䝍䞊䞁䜢Ỵᐃ䛧䛯䠊௨ୖ䛾ィ⟬⤖ᯝ䛷ồ䜎䛳䛯᭱㐺䝟䝍䞊䛣䜜䜎䛷㉸ఏᑟ䝞䝹䜽䛿䠈䛭䛾ᇶᮏⓗ≉ᛶ䛷䛒䜛≉␗䛺䞁䛷Ọஂ☢▼䜢ᾋୖయ䛸䛧䛶ᾋୖᐇ㦂䜢⾜䛔䠈䛭䛾㝿䛾ᤕᤊᤕᤊ☢᮰ᛶ⬟䛾ຎ໬䜢క䛖ᙧ≧ຍᕤ䜢⾜䜟䛪䛻䠈〇㐀᫬䛸☢᮰ᐦᗘ䛾 ᐃ⤖ᯝ䜢ᅗ 2 䛻♧䛩䠊䜎䛯ྠ᫬䛻䠈ẚ㍑䛾䛯䜑
ኚ䜟䜙䛺䛔෇ᰕᙧ≧䛷⏝䛔䜙䜜䜛䛣䛸䛜䜋䛸䜣䛹䛷䛒䛳䛯䛜䠈䛻ᤕᤊ☢᮰䛾䜀䜙䛴䛝䜢⪃៖䛧䛺䛔㓄⨨䝟䝍䞊䞁䛻䛴䛔䛶䜒᭱㏆䛷䛿ᵝ䚻䛺ຍᕤ䛜⪃䛘䜙䜜䛶䛔䜛[1]䠊ᮏ᮶䠈ᛂ⏝ᶵჾྠᵝ䛻 ᐃ䜢⾜䛳䛯䠊䛭䛾⤖ᯝ䜢ẚ㍑䛧䛯䛸䛣䜝䠈᭱㐺㓄⨨䜈䛾⤌䜏㎸䜏䜢⪃䛘䛯ሙྜ䠈䛭䜜䛮䜜䛾⏝㏵䛻ྜ䜟䛫䛶䝞䛻䜘䜛☢᮰ศᕸ䛾䜀䜙䛴䛝ᢚไ䛜䠈ຠᯝⓗ䛷䛒䜛䛣䛸䜢☜ㄆ䛧䝹䜽䛾ᙧ≧䜢䜹䝇䝍䝬䜲䝈䛩䜛ᚲせ䛜䛒䜚䠈≉䛻☢Ẽ≉ᛶ䛾䛯䠊ຎ໬䜢ᴟຊᢚ䛘䜛䛣䛸䛜㠀ᖖ䛻㔜せ䛷䛒䜛䛸⪃䛘䜙䜜䜛䠊ᮏሗ௨ୖ䠈ヲ⣽䛺⤖ᯝ䛻䛴䛔䛶䛿䠈ㅮ₇ᙜ᪥䛻ሗ࿌䛩䜛䠊࿌䛿䛭䛾ྲྀ䜚⤌䜏䛾䠍౛䛸䛧䛶䠈☢Ẽ㍈ཷ䜈䛾ᛂ⏝䜢᝿ᐃ䛧䠈㻌㞟✚ᆺ䛾䝞䝹䜽䜢⏝䛔䛯㝿䛾᳨ウ䜢⾜䛳䛯䜒䛾䛷䛒䜛䠊䛣䜜ㅰ㎡㻌䛿䠈☢Ẽ≉ᛶ䛾䜀䜙䛴䛝䛺䛹䛻䜘䜛ᅇ㌿㍈䛾㍈䜆䜜䜔䛭䜜䛻ᮏ◊✲䛿䠈JSPS⛉◊㈝JP16K06211䛾ຓᡂ䜢ཷ䛡䛯䜒䛾క䛖ᅇ㌿ᦆኻ➼䜢⪃៖䛧䠈」ᩘ䛾ᑠ䛥䛺ᇶᮏ༢఩䝞䝹䜽䜢᭱䛷䛩䠊㻌㐺䛻⤌䜏ྜ䜟䛫䜛䛣䛸䛻䜘䛳䛶䛭䛾ᦆኻᢚไ䛜ྍ⬟䛛䛹䛖䛛䜢᳨ウ䛧䛯䜒䛾䛷䛒䜛䠊
Table 1. Specification of HTS Cylindrical type Bulks.
㻌
Diameter Thickness Btrap
Jc
Bulk
Material
n value
(mm)
(mm)
(T)
(A/m2)
㻞䠊❧᪉య䝞䝹䜽䛻䜘䜛᭱㐺㓄⨨䛾᳨ウ㻌
7
A Gd-Ba-Cu-O
34.4
10.4
1.164 6.84 × 10
20᭱ึ䛻௒ᅇ䛾᳨ウ䛻䛒䛯䛳䛶䠈☢Ẽ㍈ཷ䜢ᵓᡂ䛩䜛䛯䜑
20
B Gd-Ba-Cu-O
33.5
11.1
0.872 4.74 × 107
7䛾᭱ᑠ༢఩䛾䝞䝹䜽ᙧ≧䜢㑅ᢥ䛩䜛ᚲせ䛜䛒䜛䠊䝞䝹䜽䛾ᙧ
20
C Gd-Ba-Cu-O
32.4
10.5
0.871 5.19 × 10
≧䛻㛵䛧䛶䛿䠈ᵝ䚻䛺䜒䛾䛜⪃䛘䜙䜜䜛䛜䠈㓄⨨ᙧ≧䛾⮬⏤
Table 2. Specification of HTS Cubic type Bulks.
ᗘ䜔ຍᕤ䛾ᐜ᫆䛥䠈ᢅ䛔䜔䛩䛥䛺䛹䜢⪃៖䛩䜛䛸䛸䜒䛻䠈⌧ᅾ
Btrap
Btrap
Btrap
Btrap
ᡭᣢ䛱䛾䝞䝹䜽䛷䛺䜛䜉䛟ከ䛟సᡂ䛷䛝䜛䜒䛾䜢㑅ᢥ䛩䜛䛣䛸
Bulk
Bulk
Bulk
Bulk
(T)
(T)
(T)
(T)
䛸䛧䠈௒ᅇ䛣䛣䛷䛿ᇶᮏ༢఩䝞䝹䜽䛾ᙧ≧䛻❧᪉య䜢㑅ᢥ䛧
A1
0.253
A2
0.243
A3
0.251
A4*
0.221
䛯䠊⌧ᅾᡭᣢ䛱䛾෇ᰕᆺ䝞䝹䜽䛿⾲ 1 䛻♧䛩䜘䛖䛺䝞䝹䜽䛷
B1
0.206
B2
0.206
B3
0.185
B4
0.201
C1
0.241
C2
0.237
C3
0.233
C4
0.236
䛒䜚䠈1 䛴䛾෇ᰕᆺ䝞䝹䜽䛛䜙 4 䛴䛾❧᪉య䜢ษ䜚ฟ䛧䠈1 ㎶
10mm ゅ䛾❧᪉యᙧ≧䛻ᡂᙧ䛩䜛䛣䛸䛸䛧䛯䠊ၥ㢟䛸䛺䜛෇ᰕcbcᆺ䝞䝹䜽䛾ษ᩿⥺䛾㑅ᐃ䛻䛴䛔䛶䛿䠈෇ᰕ䝞䝹䜽䛾ᤕᤊ☢
bab᮰ᐦᗘ䛾ᵝᏊ䛸䠈䝞䝹䜽⾲㠃䛾ගᏛⓗほ 䛻䜘䜚≧ែ☜ㄆ䜢cbc⾜䛔䠈䝃䞁䝥䝹䛻㐺䛥䛺䛔㒊ศ䛻䛴䛔䛶䛿㑅ู䜢⾜䛳䛯䠊❧cb
30mm᪉యᙧ≧䛻ษ䜚ฟ䛥䜜䛯䝞䝹䜽䛿䠈䛭䜜䛮䜜 0.5T 䛾 FCM 䛷
10mm
10mm
╔☢䛧䛯ᚋ䛻䠈ᤕᤊ☢᮰䜢 ᐃ䛧䛯䛸䛣䜝䠈୍ಶ䛾䝞䝹䜽䛻ⱝa10mmᖸᤕᤊ☢᮰䛾పୗ䛜䜏䜙䜜䛯䜒䛾䛾䠈䛭䛾௚䛾䝞䝹䜽䛻䛿ၥ
30mm

㢟䛿ぢ䜙䜜䛺䛛䛳䛯䠊௨ୖ䠈3 ಶ䛾෇ᰕ䝞䝹䜽䛛䜙ྜィ 12 ಶ
Fig.1 Basic arrangement pattern of magnetic bearings by cubic bulk.
䜢ษ䜚ฟ䛧䛶䠈❧᪉యᙧ≧䛻ຍᕤ䜢⾜䛳䛯䠊๐䜚ฟ䛧䛯ᇶᮏ༢
3 row 3 row square arrangement pattern.
఩❧᪉య䝞䝹䜽䛭䜜䛮䜜䛾ㅖඖ䜢⾲ 2 䛻♧䛩䠊䛣䛾⾲୰䛾ᤕᤊ☢᮰್䠄Btrap 䠅䜢ྛ䝤䝻䝑䜽䛾ᇶᮏᛶ⬟䜢♧䛩್䛸䛧䛶䠈ᚋ
㏙䛩䜛᭱㐺ィ⟬䛻⏝䛔䜛䛣䛸䛸䛧䛯䠊ᇶᮏ༢఩䝞䝹䜽䛭䜜䛮䜜䛾ᤕᤊ☢᮰ᛶ⬟䛿䠈ඖ䛾෇ᰕᆺ䝞䝹䜽䛾ᛶ⬟䛻㉳ᅉ䛩䜛ഴྥ䛜䜏䜙䜜䜛䛜䠈ษ䜚ฟ䛧ᚋಶ䚻䛾ᤕᤊ☢᮰ᛶ⬟䛻኱䛝䛺䜀䜙䛴䛝䛿ぢ䜙䜜䛺䛛䛳䛯䠊㻟䠊᭱㐺ィ⟬䛻䜘䜛㓄⨨䝟䝍䞊䞁䛾Ỵᐃ㻌ᮏ᳨ウ䛷㍈ཷഃ䛾䝞䝹䜽㓄⨨䝟䝍䞊䞁䛸䛧䛶䛿䠈ᇶᮏ༢఩䝞䝹䜽䛾ಶᩘ䛻ไ⣙䛜䛒䜛䛣䛸䛛䜙䠈᭱䜒䜸䞊䝋䝗䝑䜽䝇䛷ᐇ㦂ཬ䜃ィ⟬䛜ᐜ᫆䛺ᅗ 1 䛷♧䛩䜘䛖䛺 3㽢3 䛾ṇ᪉ᙧ㓄⨨䝟䝍䞊䞁䛷⾜䛖䛣䛸䛸䛧䛯䠊䛣䛾᫬䠈㞄䜚ྜ䛖䝞䝹䜽䛿䠈䛚஫䛔䛾☢᮰䛻ᙳ㡪䛧ྜ䛖䛣䛸䛜⪃䛘䜙䜜䜛䛣䛸䛛䜙䠈㎶䛜᥋䛩䜛ᩘ
䛻䜘䜛 Group ẖ䛻᭱㐺䛺䝞䝹䜽䛾㓄⨨䜢⪃䛘䜛䛣䛸䛸䛧䛯䠊Group 䛿 a, b, c 䛾䠏䛴䜢ᇶᮏ䛸䛧䠈㓄⨨඲య䛾୰ᚰ䛸䛺䜚䠐㎶䜢௚䛾䝞䝹䜽䛸᥋䛩䜛 Group-a䠈䠏㎶䜢௚䛾䝞䝹䜽䛸᥋䛧䛶䛔䜛
Group-b䠈䛭䛧䛶䠎㎶䛾䜏௚䛾䝞䝹䜽䛸᥋䛧䛶䛔䜛 Group-c 䛸䛧䛯䠊䛭䛧䛶䠈☢Ẽ㍈ཷ䛾᭱㐺䛺☢Ẽ≉ᛶ䜢ᚓ䜛䛯䜑䛻䠈䛭䛾㓄⨨䝟䝍䞊䞁䜢ḟ䛾᮲௳䛷᭱㐺ィ⟬䜢⾜䛔䠈㓄⨨䜢Ỵᐃ䛩䜛䛣䛸䛸䛧䛯䠊䠍䠅Group-b, c 䛾ᤕᤊ☢᮰䛾⥲࿴䛜᭱኱䛸䛺䜛䠊䠎䠅Group-b, c 䛾䝢䞊䜽್䛾䜀䜙䛴䛝䛜᭱ᑠ䠈䠏䠅Group-a 䛾ᤕᤊ

Fig. 2 Trapped magnetic flux density distribution when the optimum
arrangement pattern. 3D graph of the trapped magnetic flux density
distribution of the whole.

㻌ཧ⪃ᩥ⊩㻌
1. S. Nariki at al.: IEEE Trans. Appl. Supercond., Vol.26,
Issue.3, 7200404, doi: 10.1109/TASC.2016.2537382.

― 132 ―

第95回

2017年度秋季低温工学・超電導学会

2P-p10

超電導機器 (1)୕ḟඖ㉸㟁ᑟ䜰䜽䝏䝳䜶䞊䝍䛾ᗋ䞉ቨ㉮⾜㛫䛾㧗 ㉸㟁ᑟ䝞䝹䜽య⛣ືᏊ䛾㻌ືⓗ≉ᛶ䛻㛵䛩䜛◊✲㻌㼀㼔㼑㻌㻰㼥㼚㼍㼙㼕㼏㻌㻯㼔㼍㼞㼍㼏㼠㼑㼞㼕㼟㼠㼕㼏㼟㻌㼛㼒㻌㻴㼀㻿㻌㻮㼡㼘㼗㻌㻹㼛㼢㼑㼞㻌㼎㼑㼠㼣㼑㼑㼚㻌㻲㼘㼛㼛㼞㻌㼍㼚㼐㻌㼃㼍㼘㼘㻌㼀㼞㼍㼢㼑㼘㼕㼚㼓㻌㼛㼚㻌㻟㻙㻰㻌㻿㼡㼜㼑㼞㼏㼛㼚㼐㼡㼏㼠㼕㼚㼓㻌㻭㼏㼠㼡㼍㼠㼛㼞㻌㻌ᒣᓮ㻌 ᑛ㞝䠈ᖹሯ㻌 ♸௓䠈୰ᔱ㻌 ῟ኵ䠈᳜⏣㻌 ᾈྐ䠈㔠㻌 㘏⠊䠄ᒸᒣ኱䠅㻌㼅㻭㻹㻭㻿㻭㻷㻵㻌㼀㼍㼗㼍㼛㻘㻌㻴㻵㻾㻭㼀㻿㼁㻷㻭㻌㼅㼡㼟㼡㼗㼑㻘㻌㻺㻭㻷㻭㻿㻴㻵㻹㻭㻌㻭㼠㼟㼡㼛㻘㻌㼁㻱㻰㻭㻌㻴㼕㼞㼛㼟㼔㼕㻘㻌㻷㻵㻹㻌㻿㼑㼛㼗㻮㼑㼛㼙㻌㻔㻻㼗㼍㼥㼍㼙㼍㻌㼁㼚㼕㼢㼑㼞㼟㼕㼠㼥㻕㻌㻱㻙㼙㼍㼕㼘㻦㻌㼗㼕㼙㻬㼑㼏㻚㼛㼗㼍㼥㼍㼙㼍㻙㼡㻚㼍㼏㻚㼖㼜㻌㻌㻝䠊䛿䛨䜑䛻㻌
ᡃ䚻䛿䠈✵㛫ⓗ䛻㝸䛶䛯⎔ቃ䛻䛚䛡䜛㐲㝸᧯స䛜ྍ⬟䛺㉸㟁ᑟ䜰䜽䝏䝳䜶䞊䝍䛾㛤Ⓨ䜢⾜䛳䛶䛝䛯䚹㛤Ⓨ䛩䜛㉸㟁ᑟ
C䜰䜽䝏䝳䜶䞊䝍䛿⛣ືᏊ䛷䛒䜛㧗 ㉸㟁ᑟ䝞䝹䜽య䠄௨ୗ䝞䝹䜽య䠅䛸ᅛᐃᏊ䛷䛒䜛ᖹ㠃㓄ิ䛥䜜䛯㟁☢▼⩌䛷ᵓᡂ䛥䜜䛶䛔䜛䠄㻲㼕㼓㻚㻝䠅䚹ᅛᐃᏊ䛛䜙୕ḟඖⓗ䛺☢ሙศᕸ䜢Ⓨ⏕䛥䛫䠈≉ᐃ䛾☢ሙศᕸ䛜ᤕᤊ䛥䜜䛶䛔䜛⛣ືᏊ䛻䠈㖄┤᪉ྥ䞉Ỉᖹ
Permanent magnet
᪉ྥ䜈䛾⛣ືཬ䜃ᅇ㌿䜢ྍ⬟䛸䛧䛶䛔䜛䚹䛣䜜䜎䛷䛾◊✲䛷
A: Levitation
B:
Linearmotionn䛿䠈ᗋ䛻ἢ䛳䛯䝞䝹䜽య䛾ᦙ㏦䠄ᗋ㉮⾜䠅䛸ቨ䛻ᑐ䛧䛶Ỉᖹ䛻
C: Rotation㟁☢▼䜢㓄ิ䛩䜛䛣䛸䛻䜘䜛ቨ䛻ἢ䛳䛯䝞䝹䜽య䛾ᦙ㏦䠄ቨ㉮AC⾜䠅䛾 㻞 䛴䛾㉮⾜ᙧែ䛻䛴䛔䛶᳨ウ䛧䛶䛝䛯䚹䛣䛾㝿䠈㻞 䛴䛾㉮⾜ᙧែ㛫䛾⛣⾜䛻䛿ᅛᐃᏊ䛸䛧䛶㟁☢▼䜢⏝䛔䜛᪉ἲ䛜
HTS bulkᥦ᱌䛥䜜䛯䚹䛧䛛䛧䠈䛣䛾᪉ἲ䛷䛿㟁☢▼䛾タィ䛚䜘䜃ບ☢
Electromagnets
PM rails㻌ไᚚ䛜」㞧໬䛧ᅔ㞴䛻䛺䜛䛸䛔䛖ၥ㢟䛜䛒䛳䛯䚹䛭䛣䛷䠈ᮏ◊㻲㼕㼓㻚㻝㻌㻿㼏㼔㼑㼙㼍㼠㼕㼏㻌㼕㼘㼘㼡㼟㼠㼞㼍㼠㼕㼛㼚㻌㼛㼒㻌㼠㼔㼑㻌㼏㼛㼚㼏㼑㼜㼠㻌㼒㼛㼞㻌㻟㻙㻰㻌㻴㼀㻿㻌㼎㼡㼘㼗㻌✲䛷䛿䠈᪂䛯䛺㉮⾜ᙧែ⛣⾜ᶵᵓ䛸䛧䛶Ọஂ☢▼䜢 㻟 ḟඖⓗ㼟㼡㼜㼑㼞㼏㼛㼚㼐㼡㼏㼠㼕㼚㼓㻌 㼍㼏㼠㼡㼍㼠㼛㼞㻌 㼟㼥㼟㼠㼑㼙㻌 㼏㼛㼚㼟㼕㼟㼠㼑㼐㻌 㼣㼕㼠㼔㻌 㻞㻙㻰㻌䛻᭤㠃㓄ิ䛧䛯䝺䞊䝹≧ᅛᐃᏊ䠄㻲㼕㼓㻚㻝䠅䠄௨ୗ 㻼㻹 䝺䞊䝹䠅䜢㼍㼞㼞㼍㼚㼓㼑㼐㻌 㼙㼡㼘㼠㼕㼜㼘㼑㻌 㼑㼘㼑㼏㼠㼞㼛㼙㼍㼓㼚㼑㼠㼟㻌 㼍㼚㼐㻌 㻼㻹㻌 㼞㼍㼕㼘㼟㻌 㼒㼛㼞㻌ᥦ᱌䛧䠈䛭䛾ືⓗ≉ᛶ䛻䛴䛔䛶᳨ウ䛧䛯䚹㻌㼠㼞㼍㼢㼑㼘㼕㼚㼓㻌㼛㼒㻌㻴㼀㻿㻌㼎㼡㼘㼗㻌㼙㼛㼢㼑㼞㻌㼎㼑㼠㼣㼑㼑㼚㻌㼒㼘㼛㼛㼞㻌㼍㼚㼐㻌㼣㼍㼘㼘㻚㻌
㻌
㻌
㻞䠊ᐇ㦂㻌
㻔㼍㻕
㻼㻹 䝺䞊䝹䛾ᙧ≧䜢タィ䛩䜛䛯䜑䛻䛿䠈Ọஂ☢▼ୖ䛷䝞䝹13䜽య⛣ືᏊ䜢ᾋୖ䞉ᦙ㏦䛥䛫䛯㝿䛾㟼ⓗ䞉ືⓗ≉ᛶ䛻䛴䛔䛶
N-poleS-poleᐇ㦂ⓗ䛻᫂䜙䛛䛻䛩䜛ᚲせ䛜䛒䜛䚹䛭䛣䛷䠈㛗䛥 㻠㻜㻌㼙㼙䠈ᖜ 㻞㻜㻌92
26㼙㼙䠈ཌ䛥 㻡㻌㼙㼙 䛾䝛䜸䝆䝮Ọஂ☢▼ 㻤 ಶ䜢 㻞 ḟඖᖹ㠃㓄ิ䛧
Permanent magnet
2.86
5.72
Length: 40 mm
䛯 㻼㻹 ᅛᐃᏊ䠄㻲㼕㼓㻚㻞㻔㼍㻕䠅䜢స〇䛧䛯䚹䛒䜙䛛䛨䜑 㻠 ᴟ㟁☢▼䜢
Width: 20 mm
13
Thickness: 5 mm
184⏝䛔䛶☢ሙ୰෭༷ἲ䛻䛶╔☢䛧䛯䝞䝹䜽య⛣ືᏊ䜢 㻼㻹 ᅛᐃ㻔㼎㻕Ꮚୖ䛷ᾋୖ䛥䛫䠈䛭䛾㝿䛾ᾋୖ㧗䛥䛚䜘䜃ᾋୖຊ䜢 ᐃ䛧䛯䚹ḟ䛻䠈㻲㼕㼓㻚㻞㻔㼎㻕䛾䜘䛖䛻㟁☢▼䛸 㻼㻹 ᅛᐃᏊ䜢㓄⨨䛧䛶䝞䝹䜽య䜢ᦙ㏦䛥䛫䛯䚹⛣ືᏊ䛻୚䛘䜛᥎㐍ຊ䜢ኚ䛘䜛┠ⓗ䛷䠈㟁AC
B
D☢▼䛻㏫ᴟᛶ☢ሙ䜢ບ☢䛩䜛䛯䜑䛾㏫㟁ὶ䜢 㻟 䝟䝍䞊䞁⏝ព䛧䠈ྛ䝟䝍䞊䞁䛻䛴䛔䛶ᦙ㏦୰䛾⛣ືᏊ䛾ື䛝䜢䝕䝆䝍䝹䜹䝯䝷䛷㧗㏿ᗘ᧜ᙳ䠄㻝㻞㻜㼒㼜㼟䠅䛧䛯䚹䛭䛾ᚋ䠈㻝 䝣䝺䞊䝮䛤䛸䛾⛣
Section 3
Section 2(EM)(PM rail)㻌ືᏊ䛾఩⨨䜢ศᯒ䛩䜛䛣䛸䛷⛣ືᏊ䛾ືⓗ≉ᛶ䜢ホ౯䛧䛯䚹㻌㻲㼕㼓㻚㻞㻌㻿㼏㼔㼑㼙㼍㼠㼕㼏㻌㼕㼘㼘㼡㼟㼠㼞㼍㼠㼕㼛㼚㼟㻌㼛㼒㻌㻔㼍㻕㻌㼠㼔㼑㻌㻞㻙㻰㻌㼍㼞㼞㼍㼚㼓㼑㼐㻌㻼㻹㻌㼟㼠㼍㼠㼛㼞㻌㻌㼍㼚㼐㻌 㻔㼎㻕㻌 㼠㼔㼑㻌 㼏㼍㼞㼞㼕㼑㼐㻌 㼏㼛㼚㼢㼑㼥㼍㼚㼏㼑㻌㼑㼤㼜㼑㼞㼕㼙㼑㼚㼠㻌 㼕㼚㻌 㼛㼞㼐㼑㼞㻌 㼠㼛㻌㻟䠊ᐇ㦂⤖ᯝ䛸⪃ᐹ㻌㼕㼚㼢㼑㼟㼠㼕㼓㼍㼠㼑㻌㼠㼔㼑㻌㼐㼥㼚㼍㼙㼕㼏㻌㼏㼔㼍㼞㼍㼏㼠㼑㼞㼕㼟㼠㼕㼏㼟㻌㼛㼒㻌㼠㼔㼑㻌㼙㼛㼢㼑㼞㻚㻌⛣ືᏊ䜢 㻼㻹 ᅛᐃᏊୖ䛷ᾋୖ䛥䛫䛯㝿䠈ᾋୖ㧗䛥 㻠㻚㻜㻌㼙㼙䠈㻌᭱኱ᾋୖຊ 㻤㻞㻚㻠㻌㻺 䛜ᚓ䜙䜜䛯䚹㻲㼕㼓㻚㻟 䛻ᦙ㏦ᐇ㦂䛷䛾⛣ືᏊ䛾ືⓗ≉ᛶ䜢♧䛩䚹㻲㼕㼓㻚㻟㻔㼍㻕䛛䜙⛣ືᏊ䛾ึ㏿ᗘ䛚䜘䜃ᦙ㏦㛤ጞ┤ᚋ䛾ຍ㏿ᗘ䛿㟁☢▼䛻㏻㟁䛩䜛㏫㟁ὶ䛾኱䛝䛥䛸ṇ䛾┦㛵䛜䛒䜛䛣䛸䛜䜟䛛䜛䚹䜎䛯䠈㻲㼕㼓㻚㻟㻔㼎㻕䛛䜙㏫㟁ὶ䛾኱䛝䛥䛻㛵䜟䜙䛪䠈⛣ືᏊ䛜 㻮 ༊㛫䜢㉮⾜୰䛻 㻞 䛛ᡤ䛷㢧ⴭ䛺㏿ᗘኚ໬䜢㉳䛣䛧䛶䛔䜛䛣䛸䛜䜟䛛䜛䚹䛣䛾 㻞 䛛ᡤ䛿㛗ᡭ᪉ྥ䛾 㻼㻹㛫䛾㛫㝽䛜Ꮡᅾ䛩䜛ᗙᶆ䛸䜋䜌୍⮴䛧䛶䛔䜛䚹䛣䜜䛿⛣ືᏊ䛾㏿ᗘ䛜ῶ⾶䛧䠈䛥䜙䛻㛫㝽䛻⏕䛨䜛☢Ẽ໙㓄䛾ᙳ㡪䛷⛣ືᏊ䛜㛫㝽ୖ䜢㏻㐣䛩䜛㝿䛻᱌ෆຊ䛚䜘䜃᚟ඖຊ䛜ാ䛔䛯䛯䜑䛸⪃䛘䜙䜜䜛䚹ຍ䛘䛶䠈㻰 ༊㛫䛷䛿⛣ືᏊ䛾ຍ㏿ᗘ㐠ື䛜ぢ䜙䜜䠈ᦙ㏦┠ᶆⅬ䛷䛾㏿ᗘ䛜 㻜㻌㼙㻛㼟 䛷䛿䛺䛔䚹䛣䛾䛣䛸䛿⛣ືᏊ䛜┠ᶆⅬ䜢୍ᗘ㏻䜚㐣䛞䠈䛭䛾Ⅼ䜢୰ᚰ䛻䜸䞊䝞䞊䝅䝳䞊䝖䜢㉳䛣䛩䛣䛸䜢ព࿡䛧䛶䛔䜛䚹䛭䛾䛯䜑 㻰 ༊㛫䛷⛣ືᏊ䛜ῶ㏿䛩䜛䜘䛖䛺ไᚚἲ䛜ᚲせ䛸䛺䜛䚹䛣䜜䜙䛾ᐇ㦂⤖ᯝ䜢ཧ⪃㻌䛻䛧䛶 㻼㻹 䝺䞊䝹䜢タィ䞉ヨస䛧䛯䚹ᅛᐃᏊ䛸䛧䛶 㻼㻹 䝺䞊䝹䜢㻲㼕㼓㻚㻟㻌㼀㼔㼑㻌㼙㼑㼍㼟㼡㼞㼑㼐㻌㼟㼜㼑㼑㼐㻌㼜㼞㼛㼒㼕㼘㼑㼟㻌㼍㼟㻌㼒㼡㼚㼏㼠㼕㼛㼚㻌㼛㼒㻌㻔㼍㻕㻌㼠㼕㼙㼑㻌㼍㼚㼐㻌⏝䛔䛯ሙྜ䛾⛣ືᏊ䛾ㅖ≉ᛶ䛻䛴䛔䛶䛿ᙜ᪥ሗ࿌䛩䜛䚹㻌㻔㼎㻕㻌㼜㼛㼟㼕㼠㼕㼛㼚㻌㼛㼒㻌㼠㼔㼑㻌㼙㼛㼢㼑㼞㻚㻌zyx― 133 ―

第95回

2017年度秋季低温工学・超電導学会

2P-p11核融合 (1)㻶㼀㻙㻢㻜㻿㻭㻌㻯㻿 䝰䝕䝹䝁䜲䝹䛾ὶయ≉ᛶ㻌㻴㼥㼐㼞㼍㼡㼘㼕㼏㻌㼏㼔㼍㼞㼍㼏㼠㼑㼞㼕㼟㼠㼕㼏㼟㻌㼛㼒㻌㼠㼔㼑㻌㻶㼀㻙㻢㻜㻿㻭㻌㻯㻿㻌㼙㼛㼐㼑㼘㻌㼏㼛㼕㼘㻌㻌ᑿⰼ㻌 ဴᾈ䠈㧗⏿㻌 ୍ஓ䠈℈ཱྀ㻌 ┿ྖ䠈ຊ▼㻌 ᾈᏕ䠈௒ᕝ㻌 ಙస䠈୕ᡞ㻌 ฼⾜䠄㻺㻵㻲㻿䠅䠗ᮧୖ㻌 㝧அ䠈ኟ┠㻌 ᜤᖹ䠈ᮌὠ㻌 せ䠄㔞◊䠅㻌㻻㻮㻭㻺㻭㻌㼀㼑㼠㼟㼡㼔㼕㼞㼛䠈㼀㻭㻷㻭㻴㻭㼀㻭㻌㻷㼍㼦㼡㼥㼍㻘㻌㻴㻭㻹㻭㻳㼁㻯㻴㻵㻌㻿㼔㼕㼚㼖㼕㻘㻌㻯㻴㻵㻷㻭㻾㻭㻵㻿㻴㻵㻌㻴㼕㼞㼛㼠㼍㼗㼍㻘㻌㻵㻹㻭㻳㻭㼃㻭㻌㻿㼔㼕㼚㼟㼍㼗㼡㻘㻌㻹㻵㼀㻻㻌㼀㼛㼟㼔㼕㼥㼡㼗㼕㻌㻔㻺㻵㻲㻿㻕㻧㻌㻹㼁㻾㻭㻷㻭㻹㻵㻌㻴㼍㼞㼡㼥㼡㼗㼕㻘㻌㻺㻭㼀㻿㼁㻹㻱㻌㻷㼥㼛㼔㼑㼕㻘㻌㻷㻵㼆㼁㻌㻷㼍㼚㼍㼙㼑㻔㻽㻿㼀㻕㻌㻱㻙㼙㼍㼕㼘㻦㻌㼛㼎㼍㼚㼍㻚㼠㼑㼠㼟㼡㼔㼕㼞㼛㻬㻸㻴㻰㻚㼚㼕㼒㼟㻚㼍㼏㻚㼖㼜㻌㻌㻝䠊䛿䛨䜑䛻㻌
7DEOH  0DLQSDUDPHWHUVRIFRQGXFWRUDQGPRGHOFRLO
Conductor᰾⼥ྜ⛉Ꮫ◊✲ᡤ㻔㻺㻵㻲㻿㻕䛸㔞Ꮚ⛉Ꮫᢏ⾡◊✲㛤Ⓨᶵᵓ 6WUDQGGLDPHWHU>PP@䛜ඹྠ䛷䚸㻶㼀㻙㻢㻜㻿㻭㻌 ୰ᚰ䝋䝺䝜䜲䝗㻔㻯㻿㻕䝰䝕䝹䝁䜲䝹䛾ᛶ⬟ 1XPEHURI1E6QVWUDQGVホ౯ヨ㦂䜢⾜䛳䛯䚹ᮏヨ㦂䛷䛿 㻺㻵㻲㻿 䛾ヨ㦂⿦⨨䜢౑⏝䛧䚸 1XPEHURI&XZLUHV䝰䝕䝹䝁䜲䝹䛾⮫⏺㟁ὶ್䚸᥋⥆᢬ᢠ䚸ᅽຊᦆኻ➼䜢 ᐃ䛧 -DFNHWRXWHUVL]H>PPîPP@î
 &DEOLQJGLDPHWHU>PP@䛯䚹䛭䛾⤖ᯝ䚸㻯㻿 䝰䝕䝹䝁䜲䝹䛜タィせồ್䜢‶㊊䛩䜛䛣䛸
 &HQWUDOVSLUDO LGRG >PP@䜢☜ㄆ䛧䛯㼇㻝㼉䚹ᮏㅮ₇䛷䛿䚸㻯㻿 䝰䝕䝹䝁䜲䝹䛾ὶయ≉ᛶ䛻
 9RLGIUDFWLRQ>@䛴䛔䛶ሗ࿌䛩䜛䚹㻌
Model Coil㻞䠊㻯㻿 䝰䝕䝹䝁䜲䝹䛸෭༷䝅䝇䝔䝮㻌 1XPEHURIWXUQV ,QQHUGLDPHWHU>P@㻯㻿 䝰䝕䝹䝁䜲䝹䛿䚸㻺㼎㻟㻿㼚 ⣲⥺䛛䜙䛺䜛䜿䞊䝤䝹䞉䜲䞁䞉䝁 2XWHUGLDPHWHU>P@䞁䝆䝑䝖㻔㻯㻵㻯㻕ᑟయ䜢⏝䛔䛯䜽䜰䝑䝗䝟䞁䜿䞊䜻䝁䜲䝹䛷䛒䜛䚹 :HLJKW>W@ᑟయ䛸䝰䝕䝹䝁䜲䝹䛾ヲ⣽䜢 㼀㼍㼎㼘㼑㻝 䛻♧䛩䚹䝰䝕䝹䝁䜲䝹䛻㻌䛿䠎䛴䛾෭༷ὶ㊰䛜䛒䜚䚸ὶ㊰ධཱྀ䛜䝁䜲䝹୰ኸ㒊䛾እᚄΏ䜚㒊䚸ὶ㊰ฟཱྀ䛜䝁䜲䝹➃㒊䛻఩⨨䛩䜛䚹ྛὶ㊰㛗䛿 㻝㻜㻜㻌 㼙䛷䛒䜛䚹㻲㼕㼓㻚㻝 䛻䝰䝕䝹䝁䜲䝹䛾෭༷䝣䝻䞊ᅗ䜢♧䛩䚹䝁䜲䝹䛾ධཱྀ䞉ฟཱྀ㓄⟶䛻䛿䚸䝉䝹䝜䝑䜽䝇 ᗘィ䚸ᅽຊィ䚸ὶ㔞ィ䜢タ⨨䛧䛯䚹ヨ㦂䛾㝿䚸䝁䜲䝹䛸䝤䝇䝞䞊䛸ᨭᣢᮦ䛿䚸㉸⮫⏺
ᅽ䝦䝸䜴䝮䛷෭༷䛧䛯䚹㻌㻌㻲㼕㼓㻚㻝㻌㻯㼛㼛㼘㼕㼚㼓㻌㼒㼘㼛㼣㻌㼐㼕㼍㼓㼞㼍㼙㻌㼛㼒㻌㼠㼔㼑㻌㻯㻿㻌㼙㼛㼐㼑㼘㻌㼏㼛㼕㼘㻚㻌㻟䠊ὶయ≉ᛶヨ㦂㻌䝁䜲䝹ධཱྀ ᗘ䜢 㻡㻷 䛻ಖᣢ䛧䛯≧ែ䛷䚸䝁䜲䝹䜈䛾ὶ㔞䜢 㻟㼓㻛㼟 䛛䜙 㻝㻢㼓㻛㼟 䜎䛷ᚎ䚻䛻ቑຍ䛧䚸䛭䛾㝿䛾䝁䜲䝹䛾ὶయ≉ᛶ䜢ホ౯䛧䛯䚹㻲㼕㼓㻚㻞 䛻䠎䛴䛾ὶ㊰䠄㻝㼟㼠㻌㼜㼍㼠㼔㻘㻌㻞㼚㼐㻌㼜㼍㼠㼔䠅䛻䛚䛡䜛䝺䜲䝜䝹䝈ᩘ䛸⟶ᦶ᧿ಀᩘ䛾㛵ಀ䜢♧䛩䚹ྛ್䛿䚸䝁䜲䝹ධཱྀ䞉ฟཱྀ䛷䛾 ᗘ䚸ᅽຊ䚸㉁㔞ὶ㔞䛛䜙ồ䜑䛯䚹௒ᅇ ᐃ䛧䛯䝺䜲䝜䝹䝈ᩘ 㻞㻜㻜㻜 䛛䜙 㻝㻝㻜㻜㻜 䛻䛚䛔䛶䚸⟶ᦶ᧿ಀᩘ䛜኱䛝䛟ኚ໬䛩䜛䛣䛸䛺䛟䚸㻜㻚㻜㻢 䛛䜙 㻜㻚㻝 䛾⠊ᅖ䛻཰䜎䜛䛣䛸䛜ศ䛛䛳䛯䚹䜎䛯䚸㻯㻵㻯 ᑟయ䛾ὶయ≉ᛶ䜢ホ౯䛩䜛㝿䛻౑⏝䛥䜜䜛㻷㼍㼠㼔㼑㼐㼑㼞 䛾⤒㦂ᘧ䠄ᘧ䠄䠍䠅䠅㼇㻞㼉䛷ᐇ㦂⤖ᯝ䜈䛾䝣䜱䝑䝔䜱䞁䜾䜢⾜䛳䛯䚹䛭䛾⤖ᯝ䚸ᘧ䠄䠍䠅䛻 㻜㻚㻡 䜢஌䛨䛯ᘧ䛜ᐇ㦂⤖ᯝ䛻᭱䜒䝣䜱䝑䝖䛩䜛䛣䛸䛜ศ䛛䛳䛯䚹㻌㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 ݂ ൌ ‫ି ݒ‬଴Ǥ଻ଶ ሺͳͻǤͷܴ݁ ି଴Ǥ଼଼ ൅ ͲǤͲͷͳሻ㻌 㻌 㻌 㻌 㻔㻝㻕㻌䛣䛣䛷䚸f 䛿⟶ᦶ᧿ಀᩘ䚸Re 䛿䝺䜲䝜䝹䝈ᩘ䚸v 䛿䝪䜲䝗⋡䜢♧䛩䚹㻌㻌 㻌 ḟ䛻䚸䝁䜲䝹ධཱྀ ᗘ䜢 㻡㻌 㻷 䛻ಖᣢ䛧䚸䝁䜲䝹ධཱྀ㓄⟶䝞䝹䝤䛾㛤ᗘ䜢ᅛᐃ䛧䛯≧ែ䛷䚸䝁䜲䝹㏻㟁᫬䛻䛚䛡䜛䝁䜲䝹䛾ὶయ≉ᛶ䜢ホ౯䛧䛯䚹㻲㼕㼓㻚㻟 䛻䚸䝰䝕䝹䝁䜲䝹䛾ὶ㊰ 㻝㼟㼠㻌㼜㼍㼠㼔 䛻䛚䛡䜛ྛ㏻㟁㟁ὶ್䛷䛾䝺䜲䝜䝹䝈ᩘ䛸⟶ᦶ᧿ಀᩘ䛾㛵ಀ䜢♧䛩䚹㏻㟁㟁ὶ್䛜ቑຍ䛩䜛䛤䛸䛻䚸䝺䜲䝜䝹䝈ᩘ䛜ቑຍ䛧䚸⟶ᦶ᧿ಀᩘ䛜ῶᑡ䛩䜛ഴྥ䛜ᚓ䜙䜜䛯䚹䛣䛾⌧㇟䛿
䝁䜲䝹㏻㟁᫬䛻⏕䛨䜛㟁☢ຊ䛜ᙳ㡪䛧䛶䛔䜛䛸⪃䛘䜙䜜䜛䚹㻌㻌㻲㼕㼓㻚㻞㻌 㻾㼑㼘㼍㼠㼕㼛㼚㻌 㼎㼑㼠㼣㼑㼑㼚㻌 㼠㼔㼑㻌 㻾㼑㼥㼚㼛㼘㼐㼟㻌 㼚㼡㼙㼎㼑㼞㻌 㼍㼚㼐㻌 㼒㼞㼕㼏㼠㼕㼛㼚㻌㼒㼍㼏㼠㼛㼞㻌㼕㼚㻌㼠㼔㼑㻌㼙㼛㼐㼑㼘㻌㼏㼛㼕㼘㻚㻌㻌㻲㼕㼓㻚㻟㻌 㻾㼑㼘㼍㼠㼕㼛㼚㻌 㼎㼑㼠㼣㼑㼑㼚㻌 㼠㼔㼑㻌 㻾㼑㼥㼚㼛㼘㼐㼟㻌 㼚㼡㼙㼎㼑㼞㻌 㼍㼚㼐㻌 㼒㼞㼕㼏㼠㼕㼛㼚㻌㼒㼍㼏㼠㼛㼞㻌㼛㼒㻌㻝㼟㼠㻌㼏㼛㼛㼘㼕㼚㼓㻌㼜㼍㼠㼔㻌㼍㼠㻌㼑㼍㼏㼔㻌㼏㼛㼕㼘㻌㼏㼡㼞㼞㼑㼚㼠㻚㻌㻌ཧ⪃ᩥ⊩㻌㻝㻚㻌 㼀㻚㻌㻻㼎㼍㼚㼍㻘㻌㼑㼠㻌㼍㼘㻚㻦㻌㻼㼔㼥㼟㼕㼏㼍㻌㻯㻘㻌㼂㼛㼘㻚㻌㻡㻝㻤㻌㻔㻞㻜㻝㻡㻕㻌㼜㻚㻥㻢㻌㻞㻚㻌 㻴㻚㻌㻷㼍㼠㼔㼑㼐㼑㼞㻦㻌㻯㼞㼥㼛㼓㼑㼚㼕㼏㼟㻘㻌㼂㼛㼘㻚㻌㻟㻠㻌㻔㻝㻥㻥㻠㻕㻌㼜㻚㻡㻥㻡㻌― 134 ―

第95回

2017年度秋季低温工学・超電導学会

2P-p12核融合 (1) !!

*-+,%

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Study on configuration of samples for 13 T - 700 mm conductor test facilityI ĎF¢ -vĎË#Ďn ÁÂĎË  (NIFS)IMAGAWA Shinsaku, OBANA Tetsuhiro, TAKADA Suguru, YANAGI Nagato, TAKAHATA Kazuya (NIFS)
E-mail: imagawa@LHD.nifs.ac.jp

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1905.0Sample Case
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Inlet (4 K)
Inlet(4 K)
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1. S. Imagawa et al.: Plasma and Fusion Research, Vol. 10(2015) 3405012.

Sample case (inner surface)Fig. 3. Side-view of one-turn sample.

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第95回

2017年度秋季低温工学・超電導学会

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䛧䛯䚹⌧≧䛾 㼏㻝 タィ᱌䛷䛿⣙ 㻠㻤㻭㻛㼙㼙㻞 䛾㟁ὶᐦᗘ䚸⵳✚☢
ሙᙉᗘ䛜ྠ䛨ሙྜ䛿䚸ᵓ㐀≀䛾ᛂຊ䛿ኚ䜟䜙䛺䛔䚹䛧䛛䛧䛺䛜䜙䚸☢ሙቑຍ䛻䜘䜚䚸㟁☢ຊ䛿☢ሙᙉᗘẚ䛾䠎஌ಸ䛸䛺䜚䚸Ẽ䜶䝛䝹䜼䞊㻝㻡㻢㻳㻶䚸᭱኱㟁☢ຊ䛿 㻝㻟㻜㻹㻺㻛㼙 䛷䛒䜛䚹㻌䛭䛾䜎䜎䛷䛿䚸Ⓨ⏕䛩䜛ᛂຊ䛿ᵓ㐀ᮦᩱ䛾チᐜ್䜢㉸䛘䜛䛸ᨭᣢᵓ㐀≀䛾ᮦᩱ䛿 㻿㼁㻿㻟㻝㻢㻸㻺 䛸䛧䚸㼐㻝 䛷䛿䚸┦ᙜᛂຊண᝿䛥䜜䜛䚹⿦⨨䛜ᡂ❧䛩䜛䛯䜑䛻䛿䚸䝁䜲䝹᩿㠃ᙧ≧䛸ᨭ䛜᭱኱䛷 㻤㻜㻜㻳㻼㼍 ௨ୗ䛸䛺䛳䛯䛜㼇㻞㼉䚸㼏㻝 䛷䛿㟁☢ຊ䛾ቑ኱䛻ᣢᵓ㐀䛾෌タィ䛸ホ౯䛜ᚲせ䛷䛒䜛䚹䛭䛾䛯䜑䚸㉸ఏᑟ⥺ᮦᑐᛂ䛩䜛䛯䜑䛻䚸ᇶᮏᯈཌ䜢 㻞㻜㻜㼙㼙 䛸䛧䚸ᛂຊ䛜㧗䛔㛤ཱྀ㒊䛛䜙඲య䛾ᵓ㐀䜎䛷䜢ᵓ㐀㠀⥺ᙧ䜢⪃៖䛧䛯䝬䝹䝏䝇䜿䞊䝹䜔ᆶ┤☢ሙ䝁䜲䝹䛾᥋⥆㒊ศ䛾⿵ᙉ➼䜢⾜䛔䚸┦ᙜᛂຊ䛜ゎᯒ䛷ᛂຊศᕸホ౯䜢⾜䛔䚸ᇶᮏᵓ㐀䛾෌ᵓ⠏䜢⾜䛳䛯䚹㻌㻝㻜㻜㻜㻹㻼㼍 ௨ୗ䛸䛺䜛䛣䛸䜢┠ᶆ䛻ᵓ㐀䛾ᨵⰋ䜢⾜䛳䛯䚹㻲㼕㼓㻚㻟䛿┦ᙜᛂຊศᕸ䛾ゎᯒ⤖ᯝ䛷䚸᭱኱ 㻥㻢㻜㻹㻼㼍 䛜ෆഃᆶ┤☢
ሙ䝁䜲䝹䛾᥋⥆㒊䛻Ⓨ⏕䛧䛶䛔䜛䛜䚸ᛂຊ㞟୰䛻䜘䜛䝢䞊䜽䛷䛒䜚䚸チᐜ䛥䜜䜛䝺䝧䝹䛷䛒䜛䚹ᗈᇦⓗ䛻䛿䝦䝸䜹䝹䝁䜲䝹䜿䞊䝇䛾ᗏ㒊ศ䛜 㻣㻜㻜㻹㻼㼍 䛷ẚ㍑ⓗ㧗䛔⤖ᯝ䛸䛺䛳䛯䚹㻌㻌㻟䠊䜎䛸䜑㻌
᪩ᮇ䛾Ⓨ㟁ᐇド䜢┠ᣦ䛧䛯䝦䝸䜹䝹ᆺ᰾⼥ྜ⅔ 㻲㻲㻴㻾㻙㼏㻝䛻ᑐ䛧䛶䚸ᵓ㐀೺඲ᛶ䜢☜ಖ䛾┠ฎ䛜䛴䛔䛯䚹௒ᚋ䛿䚸㉸ఏᑟᑟయෆ㒊䛷䛾ረᛶኚᙧ䚸䛩䜉䜚䚸᥋ゐ➼䜢⪃៖䛧䛯➼౯≀ᛶ್䛾⟬ฟ䛸඲యᵓ㐀䛾ᣲື䛻୚䛘䜛ᙳ㡪䚸䛚䜘䜃⅔ෆᶵჾ䛾䝯䞁䝔䝘䞁䝇䛻ᚲせ䛺㛤ཱྀ㒊ᙧ≧䛾ᩚྜ䚸ཌᯈᵓ㐀᥋ྜ䛻䜘䜛⤌❧᪉ἲ䛾᳨ウ➼䜢㐍䜑䜛ணᐃ䛷䛒䜛䚹㻌㻌㻲㼕㼓㻚㻝㻌㻲㼡㼚㼐㼍㼙㼑㼚㼠㼍㼘㻌㼐㼑㼟㼕㼓㼚㻌㼛㼒㻌㼠㼔㼑㻌㼙㼍㼓㼚㼑㼠㻌㼟㼥㼟㼠㼑㼙㻌㼒㼛㼞㻌㻲㻲㻴㻾㻙㼐㻝㻌㼕㼚㼢㼛㼘㼢㼕㼚㼓㻌㼠㼔㼑㻌㼏㼔㼍㼘㼘㼑㼚㼓㼕㼚㼓㻌㼛㼜㼠㼕㼛㼚㼟㻚㻌㻞䠊䝬䝹䝏䝇䜿䞊䝹ゎᯒ㻌㉸ఏᑟ䝬䜾䝛䝑䝖䜢ᵓᡂ䛩䜛せ⣲䛾䝇䜿䞊䝹䛿䚸㉸ఏᑟ⣲⥺㻛䝔䞊䝥⥺䛾ᩘ 㼙㼙 ༢఩䛛䜙䚸⿦⨨඲య䛾 㻝㻜㼙 つᶍ䛻⮳䜛䚹䛭䛾䛯䜑䚸ᶵᲔⓗᣲື䛸ᵓ㐀೺඲ᛶ䜢୍㈏䛧䛶ホ౯䛷䛝䜛䝬䝹䝏䝇䜿䞊䝹ゎᯒᡭἲ䛜᭷ຠ䛷䛒䜛䚹䜎䛯䚸㉸ఏᑟ䝁䜲䝹㒊䛸䝁䜲䝹䜿䞊䝇㛫䛻䛿䚸䛩䜉䜚䜔᥋ゐ➼䛜Ⓨ⏕䛩䜛䛸ண᝿䛥䜜䜛䛯䜑䚸䛭䛾㒊ศ䛾㠀⥺ᙧᣲື䜢⪃៖䛧䛯䚹䛿䛨䜑䛻䚸㉸ఏᑟᑟయ㒊䜢༢୍䛾≀ᛶ್䛷⾲䛩䛯䜑䛾ᆒ㉁໬ゎᯒ䜢⾜䛳䛯䚹㻲㼕㼓㻚㻞 䛿ᆒ㉁໬ゎᯒ䛷⏝䛔䛯㉸ఏᑟᑟయ䛾᩿㠃ᅗ䛷䚸㼐㻝 䛾ೃ⿵ᑟయ᱌䜢ඖ䛻௬ᐃ䛧䛯䜒䛾䛷䛒䜛䚹䛣䜜䜢䝰䝕䝹໬䛧䚸䠒᪉ྥ䛾༢఩ᆶ┤䞉䛫䜣᩿䜂䛪䜏䜢୚䛘䜛䛣䛸䛷ᚓ䜙䜜䛯≀ᛶ್䜢ྠᅗྑ䛻♧䛧䛯䚹ᚓ䜙䜜䛯ᆒ㉁໬≀ᛶ್䜢ᵓ㐀≀඲య䛾ゎᯒ䛻䛚䛡䜛㉸ఏᑟ䝁䜲䝹㒊ศ䛻୚䛘䛶䚸ᛂຊ䞉ኚᙧศᕸ䜢ゎᯒ䛧䛯䚹㻌

㻌㻲㼕㼓㻚㻟㻌㼂㼛㼚㻌㻹㼕㼟㼑㼟㻌㼟㼠㼞㼑㼟㼟㻌㼐㼕㼟㼠㼞㼕㼎㼡㼠㼕㼛㼚㻌㼕㼚㻌㼠㼔㼑㻌㼏㼛㼕㼘㼟㻌㼟㼡㼜㼜㼛㼞㼠㻌㼟㼠㼞㼡㼏㼠㼡㼞㼑㻌㼛㼒㻌㻲㻲㻴㻾㻙㼏㻝㻚㻌ཧ⪃ᩥ⊩㻌㻝㻚㻌 㻭㻚㻌㻿㼍㼓㼍㼞㼍㻘㻌㼑㼠㻌㼍㼘㻚㻦㻌㻲㼡㼟㼕㼛㼚㻌㻱㼚㼓㻚㻌㻰㼑㼟㻚㻌㻤㻥㻌㻔㻞㻜㻝㻠㻕㻌㼜㻚㻞㻝㻝㻠㻌㻞㻚㻌㻴㻚㻌㼀㼍㼙㼡㼞㼍㻘㻌㼑㼠㻌㼍㼘㻚㻦㻌㻲㼡㼟㼕㼛㼚㻌㻱㼚㼓㻚㻌㻰㼑㼟㻚㻌㻝㻞㻠㻌㻔㻞㻜㻝㻣㻕㻌㼜㻚㻢㻜㻡㻌㻟㻚㻌㼀㻚㻌㻳㼛㼠㼛㻘㻌㼑㼠㻌㼍㼘㻚㻦㻌㼜㼞㼑㼟㼑㼚㼠㼑㼐㻌㼍㼠㻌㻵㻿㻲㻺㼀㻙㻝㻟㻘㻌㻿㼑㼜㻚㻌㻞㻡㻙㻞㻥㻘㻌㻷㼥㼛㼠㼛㻘㻌㻶㼍㼜㼍㼚㻌㻔㻞㻜㻝㻣㻕― 136 ―

第95回

2017年度秋季低温工学・超電導学会

2P-p14

Y 系バルク・MgB2 バルク (1)༙෇≧ MgB2 ㉸㟁ᑟ䝞䝹䜽☢▼䛾☢ሙ≉ᛶホ౯
Magnetic field property of semicircular MgB2 su perconducting bulk magnets▼ཎ㻌 ⠜ ᜠᆅ㻌 ኴ⣖ ㉥ᆏ㻌 ཭ᖾ ⚟ᮏ ♸௓䠄㕲㐨⥲◊䠅䠗⣖஭ ಇ㍤䠄ி኱䠅䠗㛵㔝 ṇᶞ䠈኱ᓮ ༤அ, ᓊᑿ ග஧䠄ᮾ኱䠅䠗ᐩ⏣ ඃ䠄㕲㐨⥲◊䠅,6+,+$5$$WVXVKL21-,7DLNL$.$6$.$7RPR\XNL)8.80272<XVXNH 5DLOZD\7HFKQLFDO5HVHDUFK,QVWLWXWH  
.LL7RVKLWHUX .\RWR8QLYHUVLW\ 6(.,120DVDNL2+6$.,+LUR\XNL.,6+,2.RKML 7KH8QLYHUVLW\RI7RN\R 
720,7$0DVDUX 5DLOZD\7HFKQLFDO5HVHDUFK,QVWLWXWH (PDLODL#UWULRUMS䜢⾜䛔䚸☢ሙ≉ᛶ䛾ホ౯䜢⾜䛳䛯䚹௒ᚋ䛿䚸」ᩘಶ䛾䝞䝹䜽㻝䠊䛿䛨䜑䛻
0J% 䛿䚸㔠ᒓ⣔㉸㟁ᑟయ᭱㧗䛾⣙ . 䛾 7F 䜢䜒䛱>@䚸య䜢⏝䛔䚸✵㛫☢ሙศᕸ䛾ホ౯䜢⾜䛳䛶䛔䛟䚹෭෾ᶵ෭༷䛻䜘䜛㉸㟁ᑟ☢▼䛺䛹䜈䛾ᛂ⏝䛜ᮇᚅ䛥䜜䜛䚹䛥

䜙䛻 0J% 䛿␗᪉ᛶ䛜ప䛟䚸ẚ㍑ⓗ㛗䛔䝁䝠䞊䝺䞁䝇㛗䜢ᣢ䛴䛣䛸䛛䜙䚸↓㓄ྥ䛾ከ⤖ᬗయ䛻䛚䛔䛶䜒⢏㛫䛾ᙅ⤖ྜ䛾ၥ㢟䛜䛺䛟䚸ඃ䜜䛯⮫⏺㟁ὶ≉ᛶ䜢♧䛧>@䚸ヨᩱ඲య䛷ᆒ୍䛺㉸㟁ᑟ≉ᛶ䜢♧䛩䛣䛸䛜ᮇᚅ䛥䜜䜛䚹䛩䛺䜟䛱䚸0J% 䛿㉸㟁ᑟ䝞䝹䜽☢▼䛸䛧䛶 ࿘ᮇ☢ሙ⏕ᡂ⿦⨨䠄䜰䞁䝆䝳䝺䞊䝍䠅䜔105 ➼䛾ィᶵჾ䜈䛾ᛂ⏝䛻ᐇ⏝ୖ᭷฼䛷䛒䜛䛸⪃䛘䜙䜜䜛䚹䛣䜜䜎䛷ᡃ䚻䛿䚸ᆒ㉁ᛶ䛾ඃ䜜䛯䚸0J% 䝞䝹䜽య䛾㛤Ⓨ䜢⾜䛳䛶䛝䛯>@䚹ᮏ◊✲䛷䛿䚸䜰䞁䝆䝳䝺䞊䝍䜈䛾ᛂ⏝䜢᝿
)LJ8QGXODWRUPDJQHWDUUD\XVLQJ0J%VXSHUFRQGXFWLQJ

ᐃ䛧> @䚸༙෇≧ 0J% ㉸㟁ᑟ䝞䝹䜽☢▼䛾✵㛫☢᮰ᐦᗘศᕸ䛾ホ౯䜢䛧䛯䛾䛷ሗ࿌䛩䜛䚹

EXONPDJQHWV㻞䠊ᐇ㦂᪉ἲ
0J 䛸 % 䛾ΰྜ⢊ᮎ䜢  PPI䚸ཌ䛥  PP 䛾෇┙≧䛻ᡂᆺ䛧䚸$U 㞺ᅖẼୗ䛷 &  K 䛾⇕ฎ⌮䜢⾜䛔䚸
0J% 䝞䝹䜽య䜢స〇䛧䚸ᚓ䜙䜜䛯䝞䝹䜽యヨᩱ䛻ᑐ䛧䚸༙෇≧䛻ᶵᲔຍᕤ䜢᪋䛧䛯䚹䛺䛚䚸୍㒊䛾ヨᩱ䛿ᶵᲔⓗᙉᗘ䛾ྥୖ䜢ᅗ䜛䛯䜑䛻⿵ᙉ䜢⾜䛳䛯䚹స〇䛧䛯䝞䝹䜽యヨᩱ䜢෭෾ᶵ䛷 . 䜎䛷෭༷䛧䚸㉸㟁ᑟ䝬䜾䝛䝑䝖䜢⏝䛔䛶☢ሙ୰෭༷䛻䜘䜚  7 䛾☢ሙୗ䛷╔☢䜢⾜䛳䛯䚹䝞䝹䜽య䛾ᤕᤊ☢ሙ≉ᛶ䛻㛵䛧䛶䛿㉮ᰝᆺ䝩䞊䝹䝥䝻䞊䝤䜢⏝䛔䛶✵㛫☢᮰ᐦᗘホ౯䜢⾜䛳䛯䚹䛺䛚䚸ヨᩱᗘ䛿䝞䝹䜽యᗏ㠃䛾

ᗘ䛸䛧

䛯䚹

)LJ7UDSSHGPDJQHWLFILHOGRID0J%VHPLFLUFOH㻟䠊⤖ᯝ䛸⪃ᐹ 

VXSHUFRQGXFWLQJEXONPDJQHWస〇䛧䛯༙෇≧ 0J% 䝞䝹䜽య䜢䜰䞁䝆䝳䝺䞊䝍⏝἞ල䛻⤌䜏㎸䜣䛰እほ䜢 )LJ 䛻♧䛩䚹↝⤖ᚋ䛻༙෇≧䛻ຍᕤ䛧䛯
0J% 䝞䝹䜽యヨᩱ䛿䚸ຍᕤ㠃䛻䝬䜽䝻䝇䜿䞊䝹䛾䜽䝷䝑䜽䚸䝪䜲䝗➼䛿䜏䜙䜜䛺䛛䛳䛯䚹༙෇≧ 0J% 䝞䝹䜽య䛾⾲㠃ᤕᤊ☢ሙ䛾ᗘ౫Ꮡᛶ䜢 )LJ 䛻♧䛩䛜䚸୰ᚰ䛛䜙䛾఩⨨䛻ᛂ䛨䛯ᤕᤊ☢ሙ್䜢♧䛩䛣䛸䜢☜ㄆ䛧䛯䚹ᙜ᪥䛿䚸༙෇≧ 0J% 䝞䝹䜽య䛾✵㛫☢᮰ᐦᗘศᕸ䜢♧㻡㻚㻌 ㅰ㎡ᮏ ◊ ✲ 䛾 ୍ 㒊 䛿  -636 ⛉ Ꮫ ◊ ✲ ㈝ ຓ ᡂ ஦ ᴗ
䠄-3+ -3+䠅䛾ຓᡂ䜢ཷ䛡䛶ᐇ᪋䛧䛯䜒䛾䛷䛒䜛䚹䛧䚸ᙧ≧ຠᯝ䛜✵㛫☢᮰ᐦᗘศᕸ䜈୚䛘䜛ᙳ㡪䛻䛴䛔䛶㆟ཧ⪃ᩥ⊩ㄽ䛩䜛ணᐃ䛷䛒䜛䚹>@-1DJDPDWVXHWDO1DWXUH  >@'&/DUEDOHVWLHUHWDO1DWXUH  >@౛䛘䜀䚸0 7RPLWD HW DO $EVWUDFWV RI &6- &RQIHUHQFH  

㻠䠊⤖ㄽ
0J% ㉸㟁ᑟ䝞䝹䜽య䜢స〇䛧䚸ᛂ⏝䜢᝿ᐃ䛧䛯ୖ䛷䚸㉸㟁ᑟ䝞䝹䜽☢▼䛸䛧䛶䛾⣲㉁䜢᳨ウ䛧䛯䚹ᮏ◊✲䛷䛿䚸䜰䞁䝆䝳䝺䞊䝍⏝䛾἞ල䛻⤌䜏㎸䜏䛣䜑䜛䜘䛖䚸༙෇ᙧ≧䛻ຍᕤ>@7.LLHWDO3URF)(/  
>@7.LLHWDO$,3FRQI3URF65,   ― 137 ―

第95回

2017年度秋季低温工学・超電導学会

2P-p15

Y 系バルク・MgB2 バルク (1)MO 䝉䞁䝃䞊䛻䜘䜛㧗㉸㟁ᑟ䝞䝹䜽☢▼䛾ᤕᤊ☢ሙศᕸホ౯䠄䠎䠅

Evaluation of trapped field distribution in high-Tc superconducting bulk magnets
using MO sensor (2)㉥ᆏ㻌 ཭ᖾ ᜠᆅ ኴ⣖ ▼ཎ㻌 ⠜ ⚟ᮏ ♸௓䠄㕲㐨⥲◊䠅䠗 㛵㔝 ṇᶞ䠈኱ᓮ ༤அ, ᓊᑿ ග஧䠄ᮾ኱䠅䠗⣖஭ ಇ㍤䠄ி኱䠅䠗ᐩ⏣ ඃ䠄㕲㐨⥲◊䠅
$.$6$.$7RPR\XNL21-,7DLNL,6+,+$5$$WVXVKL)8.80272<XVXNH 5DLOZD\7HFKQLFDO5HVHDUFK,QVWLWXWH  6(.,120DVDNL2+6$.,+LUR\XNL.,6+,2.RKML 7KH8QLYHUVLW\RI7RN\R .LL7RVKLWHUX .\RWR8QLYHUVLW\  720,7$0DVDUX 5DLOZD\7HFKQLFDO5HVHDUFK,QVWLWXWH (PDLODNDVDND#UWULRUMS㻝䠊䛿䛨䜑䛻㉸㟁ᑟ䝞䝹䜽ᮦ䛿ᴟప䛜☜ㄆ䛷䛝䛯䚹ᙜ᪥䛿䚸ᮏ⤖ᯝ䛻ຍ䛘䛶ྛ✀㉸㟁ᑟ䝞䝹䜽యୗ䛷㧗☢ሙ䜎䛷㧗䛔⮫⏺㟁ὶᐦ䛾☢ሙ୰╔☢䜢⾜䛳䛯ᤕᤊ☢ሙศᕸ䛻䛴䛔䛶䜒㆟ㄽ䛩䜛ணᗘ䜢᭷䛩䜛䛯䜑䚸ᑠᆺ䛷ᙉຊ䛺☢ሙⓎ⏕䛜ᐇ⌧䛷䛝䜛䚹䛣䜜ᐃ䛷䛒䜛䚹

䜎䛷䛻䚸ඃ䜜䛯ᤕᤊ☢ሙ≉ᛶ䜢᭷䛩䜛 5( ⣔㧗 ㉸㟁ᑟ䝞䝹㻌䜽య>@䚸0J% ㉸㟁ᑟ䝞䝹䜽య>@䛾㛤Ⓨ䜢⾜䛳䛶䛝䛯䚹ᡃ䚻䛾䜾䝹䞊䝥䛷䛿䚸ᙉຊ䝞䝹䜽☢▼䛸䛧䛶䛾ᛂ⏝䜢ぢᤣ䛘䚸㉸㟁ᑟ䝞䝹䜽య䛾☢ሙᆒ୍ᛶ䛺䜙䜃䛻☢᮰ᐦᗘศᕸ䛾ホ౯䜢⾜䛳䛶䛝䛯䚹ᮏ◊✲䛷䛿䚸☢ẼගᏛ䠄02䠅䝉䞁䝃䞊䜢⏝䛔䛶䚸㉸㟁ᑟ䝞䝹䜽య䛾ᤕᤊ☢ሙศᕸ䜢ホ౯䛧䛯䛾䛷ሗ࿌䛩䜛䚹㻞䠊ᐇ㦂᪉ἲ
0J% 䝞䝹䜽య䛿䚸0J 䛸 % 䛾ΰྜ⢊ᮎ䜢⏝䛔䚸 PPIཌ䛥  PP 䛾෇┙≧䛻䛺䜛䜘䛖䛻ᡂᆺ䛧䚸$U 㞺ᅖẼୗ䛷Υ  K 䛾⇕ฎ⌮䜢⾜䛔స〇䛧䛯䚹5( ⣔䝞䝹䜽య䛿
)LJ02,PDJHRIWUDSSHGILHOGGLVWULEXWLRQPDJQHWL]HGDW.XQGHU=)&LQD5(DQQXODUF\OLQGHUZLWKPPLQLQQHU
GLDPHWHUPPLQRXWHUGLDPHWHUDQGPPLQWKLFNQHVV

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䛸䛜䛷䛝䚸㏆㊥㞳䛻䛚䛔䛶䜒ヨᩱᙧ≧䛻ᛂ䛨䛯ᤕᤊ☢ሙศᕸ

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㉸㟁ᑟ䝞䝹䜽య䜢స〇䛧䚸02 䝉䞁䝃䞊䜢⏝䛔䛶ᤕᤊ☢ሙ

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2017年度秋季低温工学・超電導学会

2P-p16

MgB2 (1)䝇䜶䞊䝆䞁䜾ຍᕤ䛧䛯 㻹㼓㻮㻞 ⥺ᮦ䛾㍺㏦⮫⏺㟁ὶ≉ᛶ䛻୚䛘䜛㻌䝸䞁䝂㓟ῧຍ䛾ᙳ㡪㻌㻱㼒㼒㼑㼏㼠㻌㼛㼒㻌㼙㼍㼘㼕㼏㻌㼍㼏㼕㼐㻌㼐㼛㼜㼕㼚㼓㻌㼛㼚㻌㼠㼔㼑㻌㼠㼞㼍㼚㼟㼜㼛㼞㼠㻌㼏㼞㼕㼠㼕㼏㼍㼘㻌㼏㼡㼞㼞㼑㼚㼠㻌㼐㼑㼚㼟㼕㼠㼥㻌㼛㼒㻌㻹㼓㻮㻞㻌㼣㼕㼞㼑㻌㼒㼍㼎㼞㼕㼏㼍㼠㼑㼐㻌㼎㼥㻌㼟㼣㼍㼓㼕㼚㼓㻌㻌๓⏣㻌 ✑䠈℧ᕝ㻌 ༤ᖾ䠈ᯇᮏ㻌 ᫂ၿ䠈⇃಴㻌 ᾈ᫂䠄㻺㻵㻹㻿䠅㻌㻹㻭㻱㻰㻭㻌㻹㼕㼚㼛㼞㼡䠈㼀㻭㻷㻵㻳㻭㼃㻭㻌㻴㼕㼞㼛㼥㼡㼗㼕䠈㻹㻭㼀㻿㼁㻹㻻㼀㻻㻌㻭㼗㼕㼥㼛㼟㼔㼕䠈㻷㼁㻹㻭㻷㼁㻾㻭㻌㻴㼕㼞㼛㼍㼗㼕㻌㻔㻺㻵㻹㻿㻕㻌㻱㻙㼙㼍㼕㼘㻦㻌㻹㻭㻱㻰㻭㻚㻹㼕㼚㼛㼞㼡㻞㻬㼚㼕㼙㼟㻚㼓㼛㻚㼖㼜㻌㻌

Jc (A/cm2)

600䉝-1h

10000
5.0 mol%
2.5 mol%
1.0 mol%
0.0 mol%

T = 4.2 K

1000
9

10

Field (T)

11

12



Jc (A/cm2)

Fig.1 Magnetic field dependence of transport Jc at 4.2 K for
un-doped and malic acid-doped MgB2 wires fabricated byswaging. The amounts of malic acid doping were chosen to be
1.0, 2.5, and 5.0 mol% of total MgB2.


10000

5.0 mol%
2.5 mol%
1.0 mol%
0.0 mol%

T = 4.2 K
B = 10 T

1000
0.1

1

Sintering time (h)10Fig.2 Transport Jc at 4.2 K and 10 T as a function of thesintering time at 600oC for un-doped and malic acid-doped
MgB2 wires fabricated by swaging. The amounts of malic aciddoping were chosen to be 1.0, 2.5, and 5.0 mol% of total
MgB2.
Jc (A/cm2)

㻝䠊䛿䛨䜑䛻㻌
஧◹໬䝬䜾䝛䝅䜴䝮䠄MgB2䠅㉸ఏᑟయ䛿䚸⥺ᮦ䛺䛹䛾ᐇ⏝ᮦᩱ䜈䛾㐺ྜᛶ䛾ほⅬ䛛䜙䚸₯ᅾⓗ䛻ඃ䜜䛯≉㛗䞉≀ᛶ䜢᭷䛧䛶䛚䜚䚸ᵝ䚻䛺㉸ఏᑟᛂ⏝䛜⪃᱌䛥䜜䛶䛔䜛䚹౛䛘䜀䚸ᡃ䚻䛾㧗㉁䛺೺ᗣ⟶⌮䛻Ḟ䛛䛫䛺䛔☢Ẽඹ㬆⏬ീ䠄MRI䠅デ᩿⿦⨨䛾ḟୡ௦໬䜔䚸ኴ㝧ගⓎ㟁䜔㢼ຊⓎ㟁䛺䛹䛾ศᩓᆺ㟁※䛻䛚䛔䛶䚸䛭䛾㟁ຊ౪⤥䜢㧗Ᏻᐃ໬䛩䜛䛯䜑䛾ᾮయỈ⣲䝇䝔䞊䝅䝵䞁⏝㉸ఏᑟ㟁ຊ㈓ⶶ(SMES)䛺䛹䛷䛒䜚䚸་⒪䞉䜶䝛䝹䜼䞊ศ㔝䛷㉸ఏᑟ䝁䜲䝹䛸䛧䛶䛾ᛶ㉁䜢฼⏝䛧䛯䚸☢ሙᛂ⏝䛻ᮇᚅ䛜ᣢ䛯䜜䛶䛔䜛䚹⌧ᅾ䚸MgB2 ⥺ᮦ䜢䛣䜜䜙䛾㉸ఏᑟ䝁䜲䝹䛻ᛂ⏝䛩䜛䛯䜑䛻䛿䚸⮫⏺㟁ὶ≉ᛶ䛾䛥䜙䛺䜛ᨵၿ䛜せồ䛥䜜䛶䛚䜚䚸䛭䛾ㄢ㢟䛾୍䛴䛻⥺ᮦ໬᪉ἲ䛾᭱㐺໬䛜ᣲ䛢䜙䜜䛶䛔䜛䚹䛣䛾⌮⏤䛸䛧䛶䚸MgB2 ⥺ᮦ䛻㛵䛩䜛䛣䜜䜎䛷䛾◊✲䛷䛿䚸⥺ᮦ໬䜈䛾ຍᕤᡭẁ䛻䚸ᚑ᮶䛛䜙ᐇ⦼䛾䛒䜛ᅽᘏ䜔䝎䜲䝇⥺ᘬ䛝䛺䛹䛾᪉ἲ䜢㑅ᢥ䞉㐺⏝䛧䛶䛔䜛䛣䛸䛜ᴟ䜑䛶ከ䛟䚸䛣䜜䜙䛾స〇᪉ἲ䛻౫Ꮡ䛧䛶䛔䜛䛣䛸䛜ᣦ᦬䛥䜜䛶䛔䜛䚹䛭䛾୍᪉䛷䚸䝎䜲䝇䛜ᅇ㌿䛧䛺䛜䜙▷䛔䝇䝖䝻䞊䜽䛷䛾ᡴᧁ㐠ື䛻䜘䜚ᡂᙧ䛩䜛䚸䝇䜶䞊䝆䞁䜾ຍᕤ䜢⏝䛔䛯⥺ᮦ䛻㛵䛩䜛◊✲䛿ᮍ䛰ᑡ䛺䛔⌧≧䛸䛺䛳䛶䛔䜛䚹䛭䛣䛷ᮏ◊✲䛷䛿䚸䝇䜶䞊䝆䞁䜾䝬䝅䞁䜢⏝䛔䛶 MgB2 ⥺ᮦ䜢స〇䛧䚸䛥䜙䛻☢ሙୗ䛾㉸ఏᑟ≉ᛶ䛾ᨵၿ䛻᭷ຠ䛺ῧຍ๣䛷䛒䜛䝸䞁䝂㓟䜢ຍ䛘䛶䚸䛭䛾⮫⏺㟁ὶ≉ᛶ䜈䛾ᙳ㡪䜢ホ౯䛧䛯䚹㻞䠊ᐇ㦂᪉ἲ㻌
MgB2 ⥺ᮦ䛿䚸◹⣲⢊ᮎ䛸䝬䜾䝛䝅䜴䝮⢊ᮎཬ䜃䝸䞁䝂㓟⢊ᮎ䜢ཎᮦᩱ䛸䛧䛶䚸In Situ 䝟䜴䝎䞊䞉䜲䞁䞉䝏䝳䞊䝤ἲ䛻䜘䜚స〇䛧䛯䚹ῧຍ๣䛾䝸䞁䝂㓟䛿䚸MgB2 䛻ᑐ䛧䛶 1.0, 2.5, 5.0
mol%䛻┦ᙜ䛩䜛㔞䜢㐺⏝䛧䚸⥺ᮦ䛾↝⤖䛿䚸600oC 䛾 ᗘ䛻ᅛᐃ䛧䛶✀䚻䛾⇕ฎ⌮᫬㛫䛷⾜䛳䛯䚹䜎䛯䚸ẚ㍑䛾䛯䜑䛻䚸↓ῧຍ䛾 MgB2 ⥺ᮦ䜒ྠᵝ䛾᪉ἲ䛷స〇䛧䛯䚹⥺ᮦ䛾⮫⏺
㟁ὶ䛿 4.2 K 䛾 ᗘ䛷䚸10 ~ 12 T 䛾☢ሙ⠊ᅖ䛷 ᐃ䛧䚸䛭䛾⮫⏺㟁ὶᐦᗘ(Jc)䛿⥺ᮦ䝁䜰䛾㠃✚䛷⟬ฟ䛧䛯䚹㻟䠊⤖ᯝ䛸⪃ᐹ㻌䜎䛪ึᮇ᮲௳䛸䛧䛶䚸䝇䜶䞊䝆䞁䜾ຍᕤ䛧䛯⥺ᮦ䜢 600oC䛾 ᗘ䛷 1 ᫬㛫↝⤖䛧䛯ሙྜ䚸 ᗘ 4.2 K ཬ䜃☢ሙ 10 T 䛷䛾 Jc 䛿䚸ᅗ 1 䛻♧䛩㏻䜚䚸↓ῧຍ䛾⥺ᮦ䛷 ~ 8600 A/cm2 䛸䛺䜚䚸䛥䜙䛻䝸䞁䝂㓟䜢 2.5 mol%ῧຍ䛧䛯⥺ᮦ䛷 ~ 20000 A/cm2䜢㉸䛘䜛್䜎䛷ྥୖ䛩䜛䛣䛸䛜䜟䛛䛳䛯䚹䛣䛾☢ሙୗ䛾㍺㏦≉ᛶ䛾ᨵၿ䛿䚸䝸䞁䝂㓟䜢ཎᮦᩱ䛸䛧䛶⏝䛔䛯Ⅳ⣲ῧຍ䛾ຠᯝ䛷䛒䜚䚸௚䛾⥺ᮦຍᕤἲ䛸ྠᵝ䛻䚸䝇䜶䞊䝆䞁䜾ຍᕤ䛧䛯⥺ᮦ䛻䛚䛔䛶䜒᭷ຠ䛷䛒䜛䛣䛸䛜᫂䜙䛛䛻䛺䛳䛯䚹୍᪉䛷䚸ῧຍ㔞䜢 5.0 mol%䜎䛷ቑຍ䛩䜛䛸䚸600oC 䛷 1 ᫬㛫䛾▷᫬㛫↝⤖䛷䛿䚸↓ῧຍ䛾⥺ᮦ䛻ẚ䜉䛶䚸Jc 䛾☢ሙ౫Ꮡᛶ䛜ከᑡᨵၿ䛧䛶䛔䜛䜒䛾䛾䚸ప☢ሙഃ䛷ప䛔್䛻␃䜎䜛䛣䛸䛜䜟䛛䛳䛯䚹䛭䛣䛷䚸⇕ฎ⌮᫬㛫䜢㛗䛟䛧䛶⥺ᮦ䛾↝⤖䜢ヨ䜏䚸 ᗘ 4.2 Kཬ䜃☢ሙ 10 T 䛷䛾 Jc 䛻୚䛘䜛ᙳ㡪䜢ホ౯䛧䛯䚹䛭䛾⤖ᯝ䚸
5.0 mol%ῧຍ䛧䛯⥺ᮦ䛷䛿䚸ᅗ 2 䛻♧䛩㏻䜚䚸⇕ฎ⌮᫬㛫䛾ቑຍ䛸䛸䜒䛻 Jc 䛜ቑ኱䛧䛶䛔䛟ഴྥ䛻䛒䜚䚸≉䛻↝⤖᮲௳䜢 1᫬㛫䛛䜙 4 ᫬㛫䛻ኚ䛘䜛䛣䛸䛷䚸Jc 䛜኱䛝䛟ᨵၿ䛧䛶䛔䜛䛣䛸䛜䜟䛛䛳䛯䚹䛧䛛䛧䛺䛜䜙䚸↓ῧຍ䛾⥺ᮦ䛸 2.5 mol%䜎䛷ῧຍ䛧䛯⥺ᮦ䛷䛿䚸⛬ᗘ䛾ᕪ䛿䛒䜜 Jc 䛾ῶᑡഴྥ䛻⮳䜛䛣䛸䛜᫂☜䛻䛺䛳䛯䚹ῧຍ㔞䛻㛵䛧䛶䜒ྠᵝ䛻ホ౯䛧䛯⤖ᯝ䚸ᅗ 3 䛻♧
䛩㏻䜚䚸2.5 mol%䛻┦ᙜ䛩䜛㔞䜎䛷䛿䚸⇕ฎ⌮᫬㛫䛻౫Ꮡ䛫
䛪䚸Jc 䛜༢ㄪ䛻ቑຍ䛧䛶䛔䛟ഴྥ䛻䛒䜛䛣䛸䛜䜟䛛䛳䛯䚹ᙜ᪥䛿䚸䛣䜜䜙䛾⤖ᯝ䛻ᑐ䛧䛶䚸ᅽᘏཬ䜃䝎䜲䝇⥺ᘬ䛝䛾⥺ᮦຍᕤἲ䛛䜙స〇䛧䛯ᐇ㦂⤖ᯝ䛸ẚ㍑䛩䜛䛣䛸䛷䚸䝇䜶䞊䝆䞁䜾ຍᕤ䛧䛯䝸䞁䝂㓟ῧຍ⥺ᮦ䛾≉㛗䜢䜘䜚ヲ⣽䛻ሗ࿌䛩䜛䚹ㅰ㎡㻌ᮏ◊✲䛿 JST ඛ➃ⓗపⅣ⣲໬ᢏ⾡㛤Ⓨ(ALCA)䛂ᮍ᮶䛾Ỉ⣲฼⏝♫఍䜢ᨭ䛘䜛ప䝁䝇䝖㧗ᛶ⬟ MgB2 ⥺ᮦ䛾㛤Ⓨ䛃䛾ຓᡂ䜢ཷ䛡䛯䜒䛾䛷䛒䜛䚹

10000
600°C-16h
600°C-8h
600°C-4h
600°C-1h

T = 4.2 K
B = 10 T

1000
0

1

2

3

4

5

Amount of malic acid doping (mol%)6Fig.3 Transport Jc at 4.2 K and 10 T as a function of theamount of malic acid doping for MgB2 wires fabricated byswaging. The swaged wires were sintered at 600oC for 1, 4, 8,
and 16 hours.

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2017年度秋季低温工学・超電導学会

2P-p17

磁気冷凍㻳㻹 ෭෾ᶵ⏝㖄௦᭰⵳෭ᮦ㓟໬㖟䛾≉ᛶ㻌㻼㼞㼛㼜㼑㼞㼠㼕㼑㼟㻌㼛㼒㻌㼍㼘㼠㼑㼞㼚㼍㼠㼕㼢㼑㻌㼞㼑㼓㼑㼚㼑㼞㼍㼠㼛㼞㻌㼙㼍㼠㼑㼞㼕㼍㼘㻌㼟㼕㼘㼢㼑㼞㻌㼛㼤㼕㼐㼑㻌㼠㼛㻌㼘㼑㼍㼐㻌㼒㼛㼞㻌㻳㻹㻌㼞㼑㼒㼞㼕㼓㼑㼞㼍㼠㼛㼞㻌㻌ᒣୗ㻌 ▱኱㻘㻌 Ụཱྀ㻌 ᭸Ꮚ㻘㻌 Ἑᮏ㻌 ᓫ༤㻘㻌 㰻⸨㻌 ᫂Ꮚ䠄ᮾⰪ䠅䠗ቑᒣ㻌 ᪂஧䠄኱ᓥၟ⯪㧗ᑓ䠅㻌㼅㻭㻹㻭㻿㻴㻵㼀㻭㻌㼀㼛㼙㼛㼔㼕㼞㼛䠈㻌 㻱㻳㼁㻯㻴㻵㻌㼀㼛㼙㼛㼗㼛㻘㻌㻷㻭㼃㻭㻹㻻㼀㻻㻌㼀㼍㼗㼍㼔㼕㼞㼛㻘㻌㻿㻭㻵㼀㻻㻌㻭㼗㼕㼗㼛㻌㻔㼀㼛㼟㼔㼕㼎㼍㻌㻯㼛㼞㼜㼛㼞㼍㼠㼕㼛㼚㻕㻧㻌 㻌㻹㻭㻿㼁㼅㻭㻹㻭㻌㻿㼔㼕㼚㼖㼕㻌㻔㻺㻵㼀㻘㻌㻻㼟㼔㼕㼙㼍㻌㻯㼛㼘㼘㼑㼓㼑㻕㻌㻱㻙㼙㼍㼕㼘㻦㻌㼠㼛㼙㼛㼔㼕㼞㼛㻣㻚㼥㼍㼙㼍㼟㼔㼕㼠㼍㻬㼠㼛㼟㼔㼕㼎㼍㻚㼏㼛㻚㼖㼜㻌㻌㻝䠊䛿䛨䜑䛻㻌་⒪⏝ 㻹㻾㻵 䛺䛹䛾㉸㟁ᑟᶵჾ䛻䛚䛔䛶䚸㉸㟁ᑟ☢▼䛾෭༷➼䛻䛿䚸㻳㼕㼒㼒㼛㼞㼐㻙㻹㼏㻹㼍㼔㼛㼚㻔㻳㻹㻕෭෾ᶵ䛜ᗈ䛟౑⏝䛥䜜䛶䛔䜛䚹㻳㻹 ෭෾ᶵ䛾෭෾ᛶ⬟䛿䚸෭෾ᶵෆ㒊䛻ᦚ㍕䛥䜜䜛⵳෭ᮦ䛾ẚ⇕≉ᛶ䛻኱䛝䛟ᕥྑ䛥䜜䜛䚹ᚑ᮶䚸䠎ẁ 㻳㻹 ⵳෭ჾ䛷䛿䚸䠍ẁ┠䛻䛿ᐊ 䛛䜙 㻝㻜㻜㻌㻷 䜎䛷䛾㡿ᇦ䛷ẚ⇕≉ᛶ䛾㧗䛔㻯㼡 䛜䚸䠎ẁ┠䛻䛿 㻝㻜㻜㻌㻷 ௨ୗ䛾ప 㡿ᇦ䛷ẚ⇕≉ᛶ䛾㧗䛔㻼㼎 䛜౑䜟䜜䛶䛝䛯䚹㏆ᖺ䚸་⒪ᶵჾ䜈䛾 㻾㼛㻴㻿 つไ䜢ཷ䛡䚸㻼㼎 ௦᭰⵳෭ᮦ䛜ồ䜑䜙䜜䛶䛚䜚䚸㻮㼕 ⣔ྜ㔠䛺䛹䛜᳨ウ䛥䜜䛶䛔䜛䚹ᡃ䚻䛿䚸᱁Ꮚ䛾⛗ື㐠ື䛜ప ẚ⇕䛻ᐤ୚䛩䜛 㻭㼓㻞㻻㻲㼕㼓㻚㻌㻝㻌㼀㼑㼙㼜㼑㼞㼍㼠㼡㼞㼑㻌㼐㼑㼜㼑㼚㼐㼑㼚㼏㼑㻌㼛㼒㻌㼟㼜㼑㼏㼕㼒㼕㼏㻌㼔㼑㼍㼠㻌䛻╔┠䛧䚸㖄௦᭰⵳෭ᮦ䛸䛧䛶᳨ウ䛧䛶䛔䜛㼇㻝㼉䚹ᮏ◊✲䛷䛿䚸㼛㼒㻌㻭㼓㻞㻻㻘㻌㻼㼎㻘㻌㼍㼚㼐㻌㻮㼕㻚㻌㻭㼓㻞㻻 䛾෭෾ᶵᦚ㍕䜢┠ᣦ䛧䛶䚸䛣䜜䛻㐺䛧䛯⢏Ꮚᙧ≧䜈䛾㻌ᡂᙧ䜢᳨ウ䛩䜛䛸䛸䜒䛻䚸ẚ⇕䚸⇕ఏᑟ⋡䛺䛹䛾⇕≉ᛶ䜢ㄪ䜉䚸䛣䜜䛻ᇶ䛵䛟෭෾ᛶ⬟䛾ぢ✚䜒䜚䜢⾜䛳䛯䛾䛷ሗ࿌䛩䜛䚹㻌㻌㻞䠊ᐇ㦂㻌㻭㼓㻞㻻 䛾䝞䝹䜽య䛚䜘䜃⌫≧⢏Ꮚ䛾ヨᩱ䜢స〇䛧䚸ᵓ㐀ホ౯䚸ẚ⇕䛚䜘䜃⇕ఏᑟ⋡䛾ホ౯䜢⾜䛳䛯䚹䝞䝹䜽య䛿䚸ᨺ㟁䝥䝷䝈䝬↝⤖㻔㻿㼜㼍㼞㼗㻌㻼㼘㼍㼟㼙㼍㻌㻿㼕㼚㼠㼑㼞㼕㼚㼓㻕ἲ䛻䜘䜚స〇䛧䚸⌫≧⢏Ꮚ䛿䚸‵ᘧ䝥䝻䝉䝇䛻䜘䜚స〇䛧䛯䚹ᵓ㐀ホ౯䛿⢊ᮎ 㼄 ⥺ᅇᢡἲ䛻䜘䜚⾜䛔䚸ẚ⇕䛚䜘䜃⇕ఏᑟ⋡䛿䚸㻽㼡㼍㼚㼠㼡㼙㻌㻰㼑㼟㼕㼓㼚 ♫〇㻌 㻼㼔㼥㼟㼕㼏㼍㼘㻌㻼㼞㼛㼜㼑㼞㼠㼕㼑㼟㻌㻹㼑㼍㼟㼡㼞㼑㼙㼑㼚㼠㻌㻿㼥㼟㼠㼑㼙㻌㻔㻼㻼㻹㻿㻕㻌 䛾ẚ⇕䜸䝥䝅䝵䞁䛸⇕㍺㏦䜸䝥䝅䝵䞁䜢䛭䜜䛮䜜⏝䛔䛶䚸㻞䡚㻟㻜㻜㻷 䛾ᗘ⠊ᅖ䛷 ᐃ䛧䛯䚹ẚ⇕䛿䚸䝞䝹䜽ヨᩱ䛸⌫≧⢏Ꮚ䛾ྛ䚻䛻䛴䛔䛶ホ౯䛧䚸䛣䜜䜙䜢ẚ㍑䛧䛯䚹䜎䛯䚸ᵝ䚻䛺䝃䜲䝈䛾⢏Ꮚ䛾ᡂᙧ䜒ヨ䜏䛯䚹㻌㻌㻟䠊⤖ᯝ㻌㻲㼕㼓㻚㻌㻝 䛻 㻞䡚㻝㻜㻜㻌㻷 䛻䛚䛡䜛 㻭㼓㻞㻻㻌 䛾ẚ⇕䛾 ᗘ౫Ꮡᛶ䜢♧䛩䚹㻭㼓㻞㻻 䛿䚸඲ ᗘᇦ䛷ཧ↷䛻♧䛧䛯 㻮㼕 䜘䜚䜒኱䛝䛺ẚ⇕䜢♧䛧䚸㻝㻝㻌 㻷 ௨ୗ䛷䛿 㻼㼎 䜢ୖᅇ䜛䚹㻝㻝㻌 㻷 ௨ୗ䛷 㻭㼓㻞㻻 䛾ẚ⇕䛜 ᗘ䛻⥺ᙧ䛺ᙧ≧䜢♧䛩䛾䛿䚸᱁Ꮚ᣺ື䛾ගᏛ䝰䞊䝗䛜ᐤ୚䛧䛶䛔䜛䛣䛸䛻㉳ᅉ䛩䜛䜒䛾䛸⪃䛘䜙䜜䜛䚹㻲㼕㼓㻚㻌 㻞 䛻㻭㼓㻞㻻 䝞䝹䜽య䛾⇕ఏᑟ⋡䛾 ᗘ౫Ꮡᛶ䜢♧䛩䚹 ᗘ䛾పୗ䛸䛸䜒䛻⇕ఏᑟ⋡䛿పୗ䛧䚸㻝㻜㻌㻷 䛷⣙ 㻜㻚㻟㻌 㼃㻛㻷䡡㼙 䛷䛒䛳䛯䚹㻭㼓㻞㻻 䜢⵳෭ᮦ䛸䛧䛶⏝䛔䜛ሙྜ䛾㐺ษ䛺⢏Ꮚ䝃䜲䝈䛻䛴䛔䛶䛿䚸௒ᚋ᳨ウ䜢㐍䜑䜛䛜䚸ホ౯䛧䛯⇕ఏᑟ⋡䛸ẚ⇕䛛䜙ぢ✚䜒䜛䛸䚸㻞㻡㻜䃛㼙 ⛬ᗘ䛾䝃䜲䝈䛷䛒䜜䜀䚸෭෾䝃䜲䜽䝹䛾᫬㛫ෆ䛻ᮦᩱ⾲㠃䛛䜙ෆ㒊䜎䛷༑ศ䛻⇕䛜ఏᑟ䛩䜛䜒䛾䛸⪃䛘䜙䜜䜛䚹䛥䜙䛻䚸㻜㻚㻞㻌 䡚㻌 㻞㻌㼙㼙 ⛬ᗘ䛾⢏Ꮚ䛾స〇䛜ྍ⬟䛷䛒䜚䚸⢊ᮎ 㼄 ⥺ᅇᢡἲ䛻䜘䜚䛣䜜䜙䛾⢏Ꮚ䛜 㻭㼓㻞㻻 ༢య䛷䛒䜛䛣䛸䜢☜ㄆ䛧䛯㻔㻲㼕㼓㻚㻌 㻟㻌 ཧ↷㻕䚹䜎䛯䚸ୖグ䛾ẚ⇕䛸⇕ఏᑟ⋡䛾ホ౯⤖ᯝ䜢䜒䛸䛻෭෾ᛶ⬟䛾ぢ✚䜒䜚䜢⾜䛳䛯䚹⤖ᯝ䛿ᙜ᪥ሗ࿌
䛩䜛䚹㻌

㻌

㻌

㻌
㻲㼕㼓㻚㻌㻞㻌㼀㼑㼙㼜㼑㼞㼍㼠㼡㼞㼑㻌㼐㼑㼜㼑㼚㼐㼑㼚㼏㼑㻌㼛㼒㻌㼠㼔㼑㼞㼙㼍㼘㻌㼏㼛㼚㼐㼡㼏㼠㼕㼢㼕㼠㼥㻌㼛㼒㻌㻭㼓㻞㻻㻚㻌
㻌
㻔㼍㻕㻌



㻌

㻔㼎㻕㻌

㻌

㻲㼕㼓㻚㻌㻟㻌㻔㼍㻕㻼㼔㼛㼠㼛㼓㼞㼍㼜㼔㻌㼍㼚㼐㻌㻔㼎㻕㼜㼛㼣㼐㼑㼞㻌㼄㻙㼞㼍㼥㻌㼐㼕㼒㼒㼞㼍㼏㼠㼕㼛㼚㻌㼜㼍㼠㼠㼑㼞㼚㻌㼛㼒㻌㻭㼓㻞㻻㻌㼜㼍㼞㼠㼕㼏㼘㼑㼟㻚㻌㻌ཧ⪃ᩥ⊩㻌㻝㻚㻌 㼀㻚㻌㻱㼓㼡㼏㼔㼕㻘㻌 㼑㼠㻌㼍㼘㻚㻦㻌㻭㼎㼟㼠㼞㼍㼏㼠㼟㻌㼛㼒㻌㻝㼟㼠㻌㻭㼟㼕㼍㼚㻌㻵㻯㻹㻯㻌㼍㼚㼐㻌㻯㻿㻿㻶㻌㻡㻜㼠㼔㻌㻭㼚㼚㼕㼢㼑㼞㼟㼍㼞㼥㻌㻯㼛㼚㼒㼑㼞㼑㼚㼏㼑㻘㻌㻔㻞㻜㻝㻢㻕㻌㼜㻚㻝㻝㻥㻌㻌

― 140 ―

第95回

2017年度秋季低温工学・超電導学会

2P-p18

磁気冷凍☢ᛶᮦᩱ䛸䛧䛶 㻸㼍 ྜ㔠䜢⏝䛔䛯ᐊ☢Ẽ෭෾ᶵ䛾≉ᛶ㻌㻯㼔㼍㼞㼍㼏㼠㼑㼞㼕㼟㼠㼕㼏㼟㻌㼛㼒㻌㼞㼛㼛㼙㻙㼠㼑㼙㼜㼑㼞㼍㼠㼡㼞㼑㻌㼙㼍㼓㼚㼑㼠㼕㼏㻌㼞㼑㼒㼞㼕㼓㼑㼞㼍㼠㼛㼞㻌㼡㼟㼕㼚㼓㻌㻸㼍㻌㼍㼘㼘㼛㼥㻌㼒㼛㼞㻌㼙㼍㼓㼚㼑㼠㼕㼏㻌㼙㼍㼠㼑㼞㼕㼍㼘㻌

Cooling power [W]

IPPIPPIPPIPP-ΔSM[J/kg/K]㻌㇂ཱྀ㻌 ᭸ᏹ䠈ᒸᮧ㻌 ဴ⮳䠄ᮾᕤ኱䠅䠗。㻌 ┦ဴ䠄䝃䞁䝕䞁䠅䠗ᰩᒾ㻌 ㈗ᐶ䠄୕ᚨ䠅㻌㼀㻭㻺㻵㻳㼁㻯㻴㻵㻌㼀㼛㼙㼛㼔㼕㼞㼛㻘㻌㻻㻷㻭㻹㼁㻾㻭㻌㼀㼑㼠㼟㼡㼖㼕㻌㻔㼀㼛㼗㼥㼛㻌㼀㼑㼏㼔㻕㻧㻌㻮㻭㻱㻌㻿㼍㼚㼓㼏㼔㼡㼘㻌㻔㻿㼍㼚㼐㼑㼚㻕㻧㻌㻷㼁㻾㻵㻵㼃㻭㻌㼀㼍㼗㼍㼔㼕㼞㼛㻌㻔㻿㼍㼚㼠㼛㼗㼡㻕㻌㻱㻙㼙㼍㼕㼘㻦㻌㼠㼍㼚㼕㼓㼡㼏㼔㼕㻚㼠㻚㼍㼗㻬㼙㻚㼠㼕㼠㼑㼏㼔㻚㼍㼏㻚㼖㼜㻌㻌㻝䠊䛿䛨䜑䛻㻌
෭෾✵ㄪᶵჾ䛾䝜䞁䝣䝻䞁໬䜢ᐇ⌧䛩䜛୍䛴䛾ゎ䛸䛧䛶ᐊ☢Ẽ෭෾ᶵ䛾◊✲䛜⾜䜟䜜䛶䛔䜛䠊☢Ẽ෭෾䛿☢ᛶᮦᩱ28%䛾☢Ẽ⇕㔞ຠᯝ䜢฼⏝䛧䛯䜒䛾䛷䠈ບᾘ☢䛸⇕஺᥮፹య䛾ὶ䜜䜢⏝䛔䛶⇕䜢⛣ື䛥䛫䜛䠊䛣䜜䜎䛷☢ᛶᮦᩱ඘ሸ䝎䜽䝖ෆ䛻☢Ẽ㌿⛣ ᗘ䛾␗䛺䜛」ᩘ䛾ᮦᩱ䜢ᒙ≧䛻඘ሸ䛩䜛䛣䛸䛻䜘䛳䛶☢Ẽ෭෾ᶵ䛾㐠㌿ ᗘ⠊ᅖ䛜ᣑ኱䛩䜛䛣䛸䛜᫂䜙䛛䛻䛥䜜䛶䛔䜛㼇㻝㻘㻞㼉䠊ᮏሗ࿌䛷䛿䠈ᚑ᮶䜎䛷౑⏝䛥䜜䛶䛔䛯㻳㼐 ⣔ྜ㔠䜘䜚䜒኱䛝䛺☢Ẽ䜶䞁䝖䝻䝢䞊ኚ໬㔞䜢᭷䛩䜛 㻸㼍 ⣔
-20
-10
0
10
20
30
40
50
ྜ㔠䜢䝎䜽䝖䛻඘ሸ䛧䛯㝿䛾෭෾≉ᛶ䜢ㄪᰝ䛧䛯䠊㻌
Temerature[Υ]㻌㻌㻲㼕㼓㻚㻝㻌㻹㼍㼓㼚㼑㼠㼕㼏㻌㼑㼚㼠㼞㼛㼜㼥㻌㼏㼔㼍㼚㼓㼑㻌㼛㼒㻌㻸㼍㻔㻲㼑㻯㼛㻿㼕㻕㻝㻟㻌㼍㼘㼘㼛㼥㼟㻌㼇㻟㼉㻌㻞䠊㻸㼍 ⣔ྜ㔠䛻䛴䛔䛶㻌㻌ᮏ◊✲䛷⏝䛔䛯 㻸㼍 ⣔ྜ㔠䛿 㻺㼍㼆㼚㻝㻟 ᆺᵓ㐀䜢᭷䛩䜛
&ROG
+RW
㻸㼍㻔㻲㼑㻝㻙㼤㻯㼛㼤㻿㼕㻕㻝㻟 ⣔ྜ㔠䛷䛒䜛䠊䛣䜜䛿☢Ẽ␗᪉ᛶ䛜䛺䛟஧ḟ
HQG
30mm
HQG
┦㌿⛣䜢♧䛧䝠䝇䝔䝸䝅䝇䛜䛺䛔㼇㻟㼉䠊㻲㼕㼓㻚㻝 䛻 㻸㼍㻔㻲㼑㻝㻙㼤㻯㼛㼤㻿㼕㻕㻝㻟





⣔ྜ㔠䛾☢Ẽ䜶䞁䝖䝻䝢䞊ኚ໬㔞䜢♧䛩䠊䛣䛾☢Ẽ䜶䞁䝖䝻䝢D䞊ኚ໬㔞䛾䝢䞊䜽್䛻ᑐᛂ䛩䜛 ᗘ䛾䛣䛸䜢䜻䝳䝸䞊 ᗘ䛸PP䛔䛖䠊䛣䛾䜻䝳䝸䞊 ᗘ䛿 㻯㼛 䛾ྵ᭷㔞䜢ኚ໬䛥䛫䜛䛣䛸䛷ㄪᩚ




䛩䜛䛣䛸䛜䛷䛝䜛䠊ᅗ䛛䜙䜟䛛䜛䜘䛖䛻䜻䝳䝸䞊 ᗘ䛾ᑠ䛥䛔 㻸㼍E ྜ㔠䛿☢Ẽ䜶䞁䝖䝻䝢䞊ኚ໬㔞䛜኱䛝䛟䠈䜻䝳䝸䞊 ᗘ䜢ୖ䛢
40mm
30mm
10mm 20mm
50mm
䜛䛻䛴䜜䛶☢Ẽ䜶䞁䝖䝻䝢䞊ኚ໬㔞䛜ᑠ䛥䛟䛺䜛䠊㻌





F
㻌
㻟䠊୍ḟඖఏ⇕ᩘ್ゎᯒ㻌
30mm
50mm
40mm
20mm 10mm㻝 ḟඖఏ⇕ᩘ್ゎᯒ䜢⏝䛔☢ᛶᮦᩱ඘ሸ䝎䜽䝖䛾⇕≉ᛶ





G
䜢ㄪᰝ䛧䛯䠊㻌 䝎䜽䝖ෆ䛾ィ⟬䛻䛿☢ᛶᮦᩱ䛸⇕㍺㏦፹య䛸䛾㛫䛾 㻝 ḟඖ䜶䝛䝹䜼䞊ಖᏑ᪉⛬ᘧ䜢ゎ䛔䛯䠊᭷ຠ⇕ఏ㐩⋡
30mm
33mm
35mm
25mm
27mm

䛿 㻾㼍㼚㼦 䛾ᘧ䛚䜘䜃☢ᛶᮦᩱ䛾䝡䜸ᩘ䜢⏝䛔䛶⟬ฟ䛧䛯㼇㻠㼉䠊㻌㻌㻌㻲㼕㼓㻚㻞㻌㻭㼞㼞㼍㼚㼓㼑㼙㼑㼚㼠㻌㼛㼒㻌㻸㼍㻔㻲㼑㻯㼛㻿㼕㻕㻝㻟㻌㼍㼘㼘㼛㼥㼟㻌㼔㼍㼢㼕㼚㼓㻌㼐㼕㼒㼒㼑㼞㼑㼚㼠㻌㻠䠊ゎᯒ᮲௳㻌㼏㼡㼞㼕㼑㻌㼠㼑㼙㼜㼑㼞㼍㼠㼡㼞㼑㻌㼡㼟㼑㼐㻌㼒㼛㼞㻌㼟㼕㼙㼡㼘㼍㼠㼕㼛㼚㼟㻌㻲㼕㼓㻚㻞 䛻ゎᯒ䛻⏝䛔䛯☢ᛶᮦᩱ඘ሸ䝎䜽䝖ෆ䛾 㻸㼍 ྜ㔠䜢㻌඘ሸ䛩䜛᮲௳䜢♧䛩䠊ෆᚄ 㻝㻠㼙㼙 㛗䛥 㻝㻡㻜㼙㼙 䛾䝎䜽䝖䛻䜻䝳䝸25
䞊 ᗘ䛜 㻞㻡䉝䠈㻝㻥䉝䠈㻝㻟䉝䠈㻣䉝䠈㻝䉝䛾 㻡 ✀㢮䛾ᖹᆒ⢏ᚄ(a)㻜㻚㻠㻡㼙㼙 䛾⌫≧ᮦᩱ䜢඘ሸ䛧䠈䛭䜜䛮䜜䛾඘ሸ㛗䛥䜢ኚ໬䛥20(b)䛫䛯䠊㻔㼍㻕䛩䜉䛶䛾ᮦᩱ䜢➼䛧䛔㛗䛥䛷඘ሸ䛧䛯᮲௳䠈㻔㼎㻕䜻䝳(c)䝸䞊 ᗘ䛜㧗䛔ᮦᩱ䜢ቑ䜔䛧䛯᮲௳䠈㻔㼏㻕䜻䝳䝸䞊 ᗘ䛜ప䛔15(d)ᮦᩱ䜢ቑ䜔䛧䛯᮲௳䠈㻔㼐㻕䜻䝳䝸䞊 ᗘ䛜㧗䛔ᮦᩱ䛾☢Ẽ䜶䞁䝖䝻䝢䞊ኚ໬㔞䛾ᑠ䛥䛥䜢⿵䛖䛯䜑䛻䠈☢Ẽ䜶䞁䝖䝻䝢䞊ኚ໬
10㔞䛾䝢䞊䜽㧗䛥䛸඘ሸ㔞䛾✚䛜➼䛧䛟䛺䜛䜘䛖䛻඘ሸ䛧䛯᮲௳䠈5
䛾 㻠 ㏻ 䜚 䛷 䛒 䜛 䠊 ☢ ሙ 䜢 ᥃ 䛡 䜛 ࿘ Ἴ ᩘ 䛿 㻞㻴㼦 䠈 ὶ 㔞 䛿㻜㻚㻡㻸㻛㼙㼕㼚䠈᤼⇕ ᗘ䛿 㻞㻡䉝䛸䛧䛯䠊㻌
0
㻌
-10
-5
0
5
10
15
20
25
㻡䠊⤖ᯝ䛸⪃ᐹ㻌
Cold
end
temperature[Υ]㻲㼕㼓㻚㻟 䛻෭෾⬟ຊ䛸ప ➃ ᗘ䛾㛵ಀ䜢⾲䛩ゎᯒ⤖ᯝ䜢㻌♧䛩䠊㻔㼎㻕䛸㻔㼏㻕䜢ẚ䜉䜛䛸䠈䜻䝳䝸䞊 ᗘ䛾ప䛔ᮦᩱ䛾๭ྜ䛜㻲㼕㼓㻚㻟㻌㻭㼚㼍㼘㼥㼟㼕㼟㻌㼞㼑㼟㼡㼘㼠㻌㼛㼒㻌㼏㼛㼛㼘㼕㼚㼓㻌㼜㼛㼣㼑㼞㻌㼒㼛㼞㻌㼠㼔㼑㻌㼏㼍㼟㼑㻌㼛㼒㻌㻲㼕㼓㻚㻞㻌ከ䛔䜋䛹ప ➃ ᗘ䛜పୗ䛧䠈䜻䝳䝸䞊 ᗘ䛾㧗䛔ᮦᩱ䛾๭㻌ྜ䛜ከ䛔䜋䛹෭෾⬟ຊ䛜ྥୖ䛩䜛䛣䛸䛜䜟䛛䜛䠊䜎䛯㻌 㻔㼍㻕䠈㻔㼐㻕ཧ⪃ᩥ⊩㻌䛾඘ሸ᮲௳䛾⤖ᯝ䜘䜚෭෾⬟ຊ䛸ప ➃ ᗘ䛻䜋䛸䜣䛹ᕪ䛜㻝㻚㻌 㻹㻚㻌㻭㻚㻌㻾㼕㼏㼔㼍㼞㼐㻘㻌㼑㼠㻌㼍㼘㻚㻦㻌㻶㼛㼡㼞㼚㼍㼘㻌㼛㼒㻌㻭㼜㼜㼘㼕㼑㼐㻌㻼㼔㼥㼟㼕㼏㼟㻘㻌㼂㼛㼘㻚㻌㻥㻡㻌䛺䛔䛣䛸䛜䜟䛛䜛䠊඘ሸ䛩䜛ᮦᩱ䛾☢Ẽ䜶䞁䝖䝻䝢䞊ኚ໬㔞䛻㻔㻞㻜㻜㻠㻕㻌㼜㻚㻞㻝㻠㻢㻙㻞㻝㻡㻜㻌㻞㻤㻑⛬ᗘ䛾ᕪ䛜䛒䛳䛶䜒෭෾⬟ຊ䜔ప ➃ ᗘ䛻኱䛝䛺ᙳ㻞㻚㻌 㻯㻚㻌㼆㼕㼙㼙㻘㻌㼑㼠㻌㼍㼘㻚㻦㻌㻵㼚㼠㼑㼞㼚㼍㼠㼕㼛㼚㼍㼘㻌㻶㼛㼡㼞㼚㼍㼘㻌㼛㼒㻌㻾㼑㼒㼞㼕㼓㼑㼞㼍㼠㼕㼛㼚㻘㻌㼂㼛㼘㻚㻌㡪䛿䛺䛔䛸♧၀䛥䜜䜛䠊㻌㻞㻥㻌㻔㻞㻜㻜㻢㻕㻌㼜㻚㻝㻟㻜㻞㻙㻝㻟㻜㻢㻌㻌㻟㻚㻌㻮㻚㻌㻾㻚㻌㻴㼍㼚㼟㼑㼚㻘㻌㼑㼠㻌㼍㼘㻚㻦㻌㻶㼛㼡㼞㼚㼍㼘㻌㼛㼒㻌㻹㼍㼓㼚㼑㼠㼕㼟㼙㻌㼍㼚㼐㻌㻹㼍㼓㼚㼑㼠㼕㼏㻌ㅰ㎡㻌㻹㼍㼠㼑㼞㼕㼍㼘㼟㻘㻌㼂㼛㼘㻚㻌㻟㻞㻞㻌㻔㻞㻜㻝㻜㻕㻌㼜㻚㻟㻠㻠㻣䇵㻟㻠㻡㻠㻌ᮏ◊✲䛾୍㒊䛿䠈⊂❧⾜ᨻἲே᪂䜶䝛䝹䜼䞊䞉⏘ᴗᢏ⾡㻠㻚㻌 㻷㻚㻌㻸㻚㻌㻱㼚㼓㼑㼘㼎㼞㼑㼏㼔㼠㻘㻌㼑㼠㻌㼍㼘㻚㻦㻌㻭㻿㻹㻱㻌㻶㼛㼡㼞㼚㼍㼘㻌㼛㼒㻌㻴㼑㼍㼠㻌㼀㼞㼍㼚㼟㼒㼑㼞㻘㻌⥲ྜ㛤Ⓨᶵᵓ㻔㻺㻱㻰㻻㻕䛾ຓᡂ䜢ཷ䛡䛶⾜䛳䛯䜒䛾䛷䛒䜛䠊㻌 㻌㼂㼛㼘㻚㻌㻝㻞㻤㻌㻔㻞㻜㻜㻢㻕㻌㼜㻚㻝㻜㻢㻜㻙㻝㻜㻢㻥㻌― 141 ―

第95回

2017年度秋季低温工学・超電導学会

2P-p19

磁気冷凍☢ᛶ⵳෭ᮦ 㻳㼐㻝㻙㼤㻱㼞㼤㻳㼑㻝㻚㻡 䛾☢໬ཬ䜃ẚ⇕≉ᛶ㻌㻹㼍㼓㼚㼑㼠㼕㼦㼍㼠㼕㼛㼚㻌㼍㼚㼐㻌㼟㼜㼑㼏㼕㼒㼕㼏㻌㼔㼑㼍㼠㻌㼙㼑㼍㼟㼡㼞㼑㼙㼑㼚㼠㼟㻌㼛㼒㻌㼙㼍㼓㼚㼑㼠㼕㼏㻌㼞㼑㼓㼑㼚㼑㼞㼍㼠㼛㼞㻌㼙㼍㼠㼑㼞㼕㼍㼘㻌㻳㼐㻝㻙㼤㻱㼞㼤㻳㼑㻝㻚㻡㻌㻌᳃ᒸ㻌 ┤▮㻘㻌 ᯇᮏ㻌 ᆂ௓㻘㻌 ᖹᒸ㻌 ⪔୍㻌 䠄ឡ፾኱䠅㻌㻹㻻㻾㻵㻻㻷㻭㻌㻺㼍㼛㼥㼍㻘㻌㻹㻭㼀㻿㼁㻹㻻㼀㻻㻌㻷㼑㼕㼟㼡㼗㼑㻘㻌㻴㻵㻾㻭㻻㻷㻭㻌㻷㼛㼕㼏㼔㼕㻌㻔㻱㼔㼕㼙㼑㻌㼁㼚㼕㼢㻚㻕㻌㻱㻙㼙㼍㼕㼘㻌㻦㻌㼑㻤㻠㻟㻜㻟㻝㼡㻬㼙㼍㼕㼘㼟㻚㼏㼏㻚㼑㼔㼕㼙㼑㻙㼡㻚㼍㼏㻚㼖㼜㻌㻌㻝㻚㻌 ⥴ゝ㻌㻲㼕㼓㻚㻞 䛻㞽☢ሙẚ⇕䛾ᐃ⤖ᯝཬ䜃䚸ᐇ⏝ᮦᩱ䛷䛒䜛 㻼㼎䚸㻌 㻳㻹 ෭෾ᶵ䛿୺䛻䝦䝸䜴䝮䛾ᾮ໬䛻⏝䛔䜙䜜䚸⵳෭ჾ䛻☢

㻱㼞㻟㻺㼕䚸㻴㼛㻯㼡㻞 䛸䛾ẚ㍑䜢♧䛩䚹㻳㼐㻳㼑㻝㻚㻡 䛿ண᝿㏻䜚኱䛝䛺ẚ⇕ᛶ⵳෭ᮦ䜢⤌䜏㎸䜐䛣䛸䛷 㻞㻌 㻷 ௜㏆䜎䛷䛾෭෾䜢ྍ⬟䛻䛧䛶䛾䝢䞊䜽䜢♧䛩䚹㻳㼐 䝃䜲䝖䛻 㻱㼞 䜢⨨᥮䛩䜛䛸䚸☢Ẽ┦㌿⛣䛔䜛䚹☢ᛶ⵳෭ᮦ䛻䛿䚸㻝㻡㻌 㻷 ௨ୗ䛷☢Ẽ㌿⛣䛻క䛖኱䛝䛺ẚ䛻క䛖䝢䞊䜽䜢♧䛩⇕䛾䝢䞊䜽䜢♧䛩ᮦᩱ䛜౑⏝䛥䜜䜛䚹ẚ⇕䛾䝢䞊䜽䛾኱䛝䛥䛿䛺䛳䛯䚹䛣䜜䛿䚸⤖ᬗⓗ䛺↓⛛ᗎᛶ䛻㉳ᅉ䛧䛶䛔䜛䛸⪃䛘䜙䜜ᇶᗏከ㔜㡯䛾⦰㔜ᗘ䛻౫Ꮡ䛧䛶䛚䜚䚸୍⯡ⓗ䛻䛿 㻴㼛㻘㻌㻱㼞 䛺䛹䚸䜛䚹㻌ᗘ䛿పୗ䛧䚸ẚ⇕䛾䝢䞊䜽䛿䛺䛰䜙䛛䛻

඲ゅ㐠ື㔞䛾኱䛝䛺ᕼᅵ㢮䛜⏝䛔䜙䜜䜛䚹㻌⤖ᬗ୰䛷䛿䚸⤖ᬗሙ䛾㟼㟁䝫䝔䞁䝅䝱䝹䛻䜘䛳䛶㌶㐨䛾䜶
䝛䝹䜼䞊‽఩䛜ศ⿣䛧䚸㌿⛣

ᗘ௜㏆䛷䛾䝢䞊䜽䛜ᑠ䛥䛟䛺䜛せᅉ䛸䛺䜛䛜䚸㻳㼐 䜲䜸䞁䛿䚸㌶㐨ゅ㐠ື㔞䛜 㻜 䛷䛒䜚䚸⤖ᬗሙ䛻䜘䜛㟼㟁䝫䝔䞁䝅䝱䝹䛾ᙳ㡪䜢ཷ䛡䛺䛔䚹䜘䛳䛶⌮ㄽୖ䚸☢Ẽ┦㌿⛣ᗘ௜㏆䛷኱䛝䛺ẚ⇕䛾䝢䞊䜽䜢♧䛩䛣䛸䛜ண䛥䜜䜛䚹䛧䛛䛧䚸㻳㼐 ༢య䛾 㼀㻯 䛿 㻞㻥㻞㻌㻷 䛸ᕼᅵ㢮୰䛷᭱䜒㧗䛟䚸䛭䛾໬ྜ≀䛾㌿⛣ ᗘ䜒㧗䛔ഴྥ䛻䛒䜛䚹㻌㻌 ඛ⾜◊✲䛻䛚䛔䛶䚸㻳㼐㻳㼑㻝㻚㻡 䛿 㼀㻺㻌㻩㻌㻞㻤㻚㻝㻌㻷 䛸ሗ࿌䛥䜜䛶䛚䜚㻔㻝㻕䚸㻳㼐 ໬ྜ≀䛾୰䛷䛿ẚ㍑ⓗ☢Ẽ┦㌿⛣ ᗘ䛜ప䛔䚹㻌㻲㼕㼓㻚㻝㻌㼄㻙㼞㼍㼥㻌㼐㼕㼒㼒㼞㼍㼏㼠㼕㼛㼚㻌㼜㼍㼠㼠㼑㼞㼚㼟㻌㼛㼒㻌㻳㼐㻝㻙㼤㻱㼞㼤㻳㼑㻝㻚㻡㻌 㻌

ᮏබ₇䛷䛿䚸㻳㼐㻳㼑㻝㻚㻡 䛾 㻳㼐 䝃䜲䝖䛻 㻱㼞 䜢⨨᥮䛩䜛䛣䛸䛷䚸☢Ẽ┦㌿⛣ᗘ䜢పୗ䛥䛫䛯ヨᩱ䜢స〇䛧䚸☢໬ཬ䜃ẚ⇕䜢 ᐃ䛧䛯⤖ᯝ䜢Ⓨ⾲䛩䜛䚹㻌㻌㻞㻚㻌 ᐇ㦂㻌㻌 㻳㼐㻌㻔㻥㻥㻚㻥㻌㻑㻕䚸㻱㼞㻌㻔㻥㻥㻚㻥㻌㻑㻕䚸㻳㼑㻌㻔㻥㻥㻚㻥㻥㻌㻑㻕䜢ཎᩱ䛸䛧䚸䜰䞊䜽⁐ゎᚋ䚸䜰䝙䞊䝹ฎ⌮㻌 㻔㻤㻝㻜䡚㻝㻝㻜㻜㻌䉝㻘㻌㻣㻞 ᫬㛫㻕㻌 䜢䛩䜛䛣䛸䛷䚸㻳㼐㻝㻙㼤㻱㼞㼤㻳㼑㻝㻚㻡㻌㻔㼤㻌㻩㻌㻜㻘㻌㻜㻚㻡㻘㻌㻜㻚㻢㻘㻌㻜㻚㻣㻘㻌㻝㻕㻌 䜢స〇䛧䛯䚹⢊ᮎ 㼄 ⥺ᅇᢡ䛻䜘䛳䛶ᵓ㐀ゎᯒ䜢䛧䛯ᚋ䚸㻿㻽㼁㻵㻰 ☢᮰ィ䚸⇕⦆࿴ἲ䛻䜘䜚䚸☢໬ཬ䜃㞽☢ሙẚ⇕䜢ᐃ䛧䛯䚹㻌㻲㼕㼓㻚㻞㻌㻿㼜㼑㼏㼕㼒㼕㼏㻌㼔㼑㼍㼠㻌㼛㼒㻌㻳㼐㻝㻙㼤㻱㼞㼤㻳㼑㻝㻚㻡㻌㼍㼚㼐㻌㼏㼛㼙㼜㼍㼞㼕㼟㼛㼚㻌㼣㼕㼠㼔㻌㻌㼜㼞㼍㼏㼠㼕㼏㼍㼘㻌㼙㼍㼠㼑㼞㼕㼍㼘㼟㻔㻞㻕㻌㻟㻚㻌 ⤖ᯝ㻌㻌 ⢊ᮎ 㼄 ⥺ᅇᢡᐃ䛾⤖ᯝ䜘䜚䚸䛩䜉䛶䛾 㻳㼐㻝㻙㼤㻱㼞㼤㻳㼑㻝㻚㻡 ヨᩱ㻌䛿 㻭㼘㻮㻞 ᆺ䛾⤖ᬗᵓ㐀䛷䛒䜛䛣䛸䜢☜ㄆ䛧䛯䚹䠄㻲㼕㼓㻚㻝䠅㻌ཧ⪃ᩥ⊩㻌☢໬ ᐃ䛾⤖ᯝ䜘䜚䚸㻳㼐㻳㼑㻝㻚㻡 䛸 㻱㼞㻳㼑㻝㻚㻡 䛿䛔䛪䜜䜒䛾཯ᙉ☢

㻔㻝㻕㻌㻹㼡㼘㼐㼑㼞㻌㻲㻚㻹㻚㻌㼑㼠㻌㼍㼘㻚㻘㻌㻶㻚㻌㻭㼘㼘㼛㼥㼟㻌㻯㼛㼙㼜㼐㻚㻘㻌㻞㻞㻜㻡㻌㻔㻝㻥㻥㻠㻕㻌㻝㻢㻥㻌ᛶ䛷䛒䜚䚸☢Ẽ┦㌿⛣ ᗘ䛿䛭䜜䛮䜜 㻞㻤㻌㻷 䛸 㻟㻌㻷 䛷䛒䛳䛯䚹㻌㻔㻞㻕㻌 ᒸᮧṇᕭ㻌 ௚㻘㻌 ᮾⰪ䝺䝡䝳䞊㻘㻌㻡㻡㻡㻌㻌㻝㻌㻔㻞㻜㻜㻜㻕㻌㻢㻠㻌― 142 ―

第95回

2017年度秋季低温工学・超電導学会

2P-p20

計測・基礎኱Ẽ୰䜈䛾✀䚻෭፹䜺䝇ᨺฟ᫬䛾ὶື䛺䜙䜃䛻㓟⣲⃰ᗘኚື䛻㛵䛩䜛ᩘ್ᐇ㦂㻺㼡㼙㼑㼞㼕㼏㼍㼘㻌㼟㼕㼙㼡㼘㼍㼠㼕㼛㼚㻌㼛㼚㻌㼠㼕㼙㼑㻌㼐㼑㼜㼑㼚㼐㼑㼚㼠㻌㼎㼑㼔㼍㼢㼕㼛㼞㻌㼛㼒㻌㼍㼠㼙㼛㼟㼜㼔㼑㼞㼕㼏㻌㼛㼤㼥㼓㼑㼚㻌㼐㼡㼞㼕㼚㼓㻌㼍㻌㼘㼛㼏㼍㼘㼕㼦㼑㼐㻌㼏㼛㼛㼘㼍㼚㼠㻌㼓㼍㼟㻌㼟㼜㼕㼘㼘㻔㻷㻱㻷㻕㻻㻷㻭㻹㼁㻾㻭 㼀㼍㼗㼍㼔㼕㼞㼛 㻔㻷㻱㻷㻕㻱㻙㼙㼍㼕㼘㻦 㼠㼍㼗㼍㼔㼕㼞㼛㻚㼛㼗㼍㼙㼡㼞㼍㻬㼗㼑㼗㻚㼖㼜
㻝㻚

㻴㼑

㻭㼞

㼄㼑

㻞㻌㼟㼑㼏

㻞㻌㼟㼑㼏

㻞㻌㼟㼑㼏

㻢㻌㼟㼑㼏

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㻝㻜㻌㼟㼑㼏

㻝㻜㻌㼟㼑㼏

㻝㻜㻌㼟㼑㼏

㻝㻡㼟㼑㼏

㻝㻡㼟㼑㼏

㻝㻡㼟㼑㼏

㻞㻜㼟㼑㼏

㻞㻜㼟㼑㼏

㻞㻜㼟㼑㼏

㻌㻡㻌㼙

㻞㻚
㻲㼕㼓㻚 㻝 㼀㼕㼙㼑 㼐㼑㼜㼑㼚㼐㼑㼚㼠 㼎㼑㼔㼍㼢㼕㼛㼡㼞 㼒㼛㼞 㻴㼑㻘 㻭㼞 㼍㼚㼐 㼄㼑㻚㻝㻕㻞㻜 㽢㻞㻜 㼙 㻞㻝㻜 㼙㼇㻝㼉 㻔 㻟㻕 㻵㻸㻯㻔㻞㻕 㻵㻸㻯

㼇㻞㼉㻹㼍㼟㼟㻌㻲㼞㼍㼏㼠㼕㼛㼚㻌㻔㻙㻕㻔㻞㻜 㽢㻞㻜 㼙 㻞

㻲㼕㼓㻚㻝

㻝㻜 㼙

㻹㼍㼟㼟㻌㻲㼞㼍㼏㼠㼕㼛㼚㻌㻔㻙㻕

㻟㻚
㻝
㻲㼕㼓㻚㻞
㻠㼙

㻝㼙

㻟㼙

㼀㼕㼙㼑㻌㻔㼟㼑㼏㻕㻲㼕㼓㻚 㻞 㼀㼕㼙㼑 㼐㼑㼜㼑㼚㼐㼑㼚㼠 㼎㼑㼔㼍㼢㼕㼛㼡㼞 㼒㼛㼞 㻴㼑㻘 㻭㼞 㼍㼚㼐 㼄㼑㻚

㻲㼕㼓㻚㻟

㻵㻸㻯
㻔㻝㻡㻜 㼙 䍐 㻞㻥㻜㼙㻕㻝㻚 㼀㻚 㻻㼗㼍㼙㼡㼞㼍㻦 㻭㼎㼟㼠㼞㼍㼏㼠㼟 㼛㼒 㻯㻿㻶 㻯㼛㼚㼒㼑㼞㼑㼚㼏㼑㻘 㼂㼛㼘㻚 㻤㻤㻘 㼜㻝㻡㻡㻞㻚 㻹㻚 㻹㼕㼥㼍㼔㼍㼞㼍㻘 㼑㼠 㼍㼘㻚㻘㻦 㻼㼞㼛㼏㼑㼑㼐㼕㼚㼓㼟 㼛㼒 㼠㼔㼑 㻝㻟㼠㼔 㻭㼚㼚㼡㼍㼘 㻹㼑㼑㼠㻙㼕㼚㼓 㼛㼒 㻼㼍㼞㼠㼕㼏㼘㼑 㻭㼏㼏㼑㼘㼑㼞㼍㼠㼛㼞 㻿㼛㼏㼕㼑㼠㼥 㼛㼒 㻶㼍㼜㼍㼚㻘 㼜㻣㻥㻡㻙㻣㻥㻤
放出部

放出部

放出部

放出部

㻝㻜㼙

放出部

㻞㻌㼟㼑㼏
㻢㻌㼟㼑㼏
㻝㻜㻌㼟㼑㼏
㻝㻡㻌㼟㼑㼏
㻞㻜㻌㼟㼑㼏
㻟㻜㻌㼟㼑㼏

㻲㼕㼓㻚 㻟 㼀㼕㼙㼑 㼐㼑㼜㼑㼚㼐㼑㼚㼠 㼎㼑㼔㼍㼢㼕㼛㼡㼞 㼒㼞㼛㼙 㻜 㼟㼑㼏 㼠㼛 㻟㻜 㼟㼑㼏 㼒㼛㼞 㼠㼔㼑 㼔㼑㼘㼕㼡㼙 㼟㼜㼕㼘㼘 㼕㼚㼠㼛 㼠㼔㼑 㼍㼏㼏㼑㼘㼑㼞㼍㼠㼛㼞 㼠㼡㼚㼚㼑㼘㻘 㻔㻝㻡㻜 㼙 䍐 㻞㻥㻜 㼙㻕㻚― 143 ―

第95回

2017年度秋季低温工学・超電導学会

2P-p21

計測・基礎䝞䜲䝯䝍䝹䜢⏝䛔䛯ᴟప⏝ග䝣䜯䜲䝞

ᗘィ䛾㛤Ⓨ㻌

㻾㻒㻰㻌㼛㼒㻌㼛㼜㼠㼕㼏㼍㼘㻌㼒㼕㼎㼑㼞㻌㼠㼔㼑㼞㼙㼛㼙㼑㼠㼑㼞㻌㼒㼛㼞㻌㼢㼑㼞㼥㻌㼘㼛㼣㻌㼠㼑㼙㼜㼑㼞㼍㼠㼡㼞㼑㻌㼣㼕㼠㼔㻌㼎㼕㼙㼑㼠㼍㼘㻌㻵㼚㼠㼑㼚㼟㼕㼠㼥㻌㻌㼇㼐㻮㼙㼉㻵㼚㼠㼑㼚㼟㼕㼠㼥㻌㻌㼇㼐㻮㼙㼉㻌ΎỈ㻌 ὒᏕ䠈ᑠᓥ㻌 ⿱஧㻘㻌 ௰஭㻌 ᾈᏕ㻘㻌 ୰す㻌 ຌኴ㻘㻌 ཎ㻌 ࿴ᩥ㻘㻌 ᮏ㛫㻌 ㍤ஓ㻌 䠄㧗䜶䝛◊䠅㻌㻿㻴㻵㻹㻵㼆㼁㻌㻴㼕㼞㼛㼠㼍㼗㼍䠈㻌 㻷㻻㻶㻵㻹㻭㻌㼅㼡㼖㼕㻘㻌㻺㻭㻷㻭㻵㻌㻴㼕㼞㼛㼠㼍㼗㼍㻘㻌㻺㻭㻷㻭㻺㻵㻿㻴㻵㻌㻷㼛㼠㼍㻘㻌㻴㻭㻾㻭㻌㻷㼍㼦㼡㼒㼡㼙㼕㻘㻌㻴㻻㻺㻹㻭㻌㼀㼑㼞㼡㼥㼍㻌㻔㻷㻱㻷㻕㻌㻱㻙㼙㼍㼕㼘㻦㻌㼔㼕㼞㼛㼠㼍㼗㼍㻬㼜㼛㼟㼠㻚㼗㼑㼗㻚㼖㼜㻌㻌㻟䠊ணഛヨ㦂⤖ᯝ㻌㻝䠊䛿䛨䜑䛻㻌
㻲㼕㼓㻚㻞㻌 䛻䚸㻲㻮㻳 䝉䞁䝃䜢⏝䛔䛶⾜䛳䛯ணഛヨ㦂䛾⤖ᯝ䜢䝁䜰㒊ศ䛻䚸䝤䝷䝑䜾䜾䝺䞊䝔䜱䞁䜾㻌 㻔㻮㼞㼍㼓㼓㻌 㼓㼞㼍㼠㼕㼚㼓㻕㻌 䛸࿧♧䛩㼇㻞㼉䚹㻲㼕㼓㻚㻞 䛾ᕥഃ䛜䚸␗䛺䜛᱁Ꮚ㛫㝸䜢ᣢ䛴 㻲㻮㻳 䜢┤ิ䜀䜜䜛つ๎ⓗ䛺᱁Ꮚ≧䛻ᒅᢡ⋡䛾ኚ໬䜢ᣢ䛯䛫䛯ග䝣䜯䜲䛻⧅䛔䛰㝿䛾཯ᑕග䛾ᵝᏊ䛷䛒䜚䚸㻝㻜㻠㻜㼚㼙 䛛䜙 㻝㻜㻢㻜㼚㼙 䛾䠏䝞䛿䚸䝣䜯䜲䝞䝤䝷䝑䜾䜾䝺䞊䝔䜱䞁䜾㻌 㻔㻲㻮㻳㻕㻌 䝉䞁䝃䛸࿧䜀䜜䚸ᮏ䛾㗦䛔䝢䞊䜽䛜ᚓ䜙䜜䛶䛔䜛䚹䛣䜜䜙䛾䝢䞊䜽఩⨨䛾ኚື᪤䛻ከ᪉㠃䛷ᐇ⏝䛥䜜䛶䛔䜛㼇㻝㼉䚹ᡃ䚻䛿䛣䛾 㻲㻮㻳 䝉䞁䝃䜢䛜᱁Ꮚ㛫㝸䛾ኚ໬䛻ᑐᛂ䛧䛶䛔䜛䚹㻲㼕㼓㻚㻞 ྑഃ䛿䚸㻲㻮㻳 䜢ᾐ฼⏝䛧䛯䚸㻠㻌㻷㻌 ௨ୗ䛾ᴟప 䛾 ᗘᇦ䛷౑⏝䛷䛝䜛᪂䛧䛔䛧䛶䛔䜛⇕ᾎ䛾 ᗘ䜢ኚ໬䛥䛫䛯㝿䛾䚸䝢䞊䜽఩⨨䛾ኚ໬䛾ᗘィ䛾◊✲㛤Ⓨ䜢⌧ᅾ㐍䜑䛶䛔䜛䚹㻌ᵝᏊ䜢ㄪ䜉䛯⤖ᯝ䛷䛒䜛䚹⇕ᾎ䛾 ᗘ䛜ୗ䛜䜛䛻㐃䜜䚸཯ᑕ㻌 㻌 㻲㻮㻳㻌 䝉䞁䝃䛾฼Ⅼ䛸䛧䛶䛿䠍ᮏ䛾ග䝣䜯䜲䝞䛰䛡䜢ప䛥䜜䜛ග䛾Ἴ㛗䛜▷䛟㻔᱁Ꮚ㛫㝸䛜▷䛟㻕䛺䛳䛶䛔䜛஦䛜ゎ䜛䚹㻌ᇦ䛻ᣢ䛱㎸䜐஦䛷䚸ᐜ᫆䛻 ᐃ䛾ከⅬ໬䛜ྍ⬟䛸䛺䜛஦䛷䚸ᚑ᮶䛾 ᗘィ䛾䜘䛖䛻䚸኱㔞䛾㔠ᒓಙྕ⥺䜢ᚲせ䛸䛧䛺䛔Ⅼ㻙㻞㻜㻙㻞㻜
1039.60nm
1040.24nm
1040nm1060nm䛜ᣲ䛢䜙䜜䜛䚹ᑐ䛧䛶䚸ᴟప 㡿ᇦ䛷䛿䚸⣲ᮔ䛺㻌 㼓㼞㼍㼠㼕㼚㼓㻌 㛫㻙㻠㻜㻙㻠㻜㝸䛾⇕཰⦰䛾⮬⏤ᗘ䛿᪤䛻෾⤖䛥䜜䛶䛚䜚䚸㻲㻮㻳㻌 ༢య䛷䛾㻙㻢㻜㻙㻢㻜㐠⏝䛷䛿 ᗘィ䛸䛧䛶ᚲせ䛺ឤᗘ䛾⥔ᣢ䛜㞴䛧䛔䚹䛣䛾ၥ㢟
1050nm㻙㻤㻜㻙㻤㻜䜢ඞ᭹䛩䜛Ⅽ䛻䚸ᴟప ⎔ቃ䛾୰䛷䜒 ᗘኚ໬䜈䛾ឤᗘ䜢
㻙㻝㻜㻜
㻙㻝㻜㻜
⥔ᣢ䛩䜛䛯䜑䛾㔠ᒓ἞ල䛾฼⏝䜢ᛕ㢌䛻◊✲䜢㐍䜑䛶䛔䜛䚹㻵㼚㼠㼑㼚㼟㼕㼠㼥㻬㻣㻡䉝㻌㻌㼇㼐㻮㼙㼉
㻙㻝㻞㻜
㻙㻝㻞㻜
㻵㼚㼠㼑㼚㼟㼕㼠㼥㻌㻌㼇㼐㻮㼙㼉䛣䛾ሗ࿌䛷䛿䚸⌧ᅾᡃ䚻䛜ྲྀ䜚⤌䜣䛷䛔䜛䚸䝞䜲䝯䝍䝹⏝䛔䛯㻵㼚㼠㼑㼚㼟㼕㼠㼥㻬㻞㻜䉝㻌㻌㼇㼐㻮㼙㼉ᗘ᳨ฟ⬟ຊ䛾ᅇ᚟䛾◊✲㛤Ⓨ䛻䛴䛔䛶䜒ㄝ᫂䜢⾜䛖䚹㻌㻝㻜㻟㻥㻝㻜㻟㻥㻚㻡
㻝㻜㻠㻜㻝㻜㻠㻜㻚㻡
㻝㻜㻠㻝
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㻝㻜㻤㻜
㻝㻝㻜㻜
㼃㼍㼢㼑㻌㻸㼑㼚㼓㼠㼔㻌㻌㼇㼚㼙㼉㼃㼍㼢㼑㻌㻸㼑㼚㼓㼠㼔㻌㻌㼇㼚㼙㼉㻌㻌㻲㼕㼓㻚㻞㻌㻱㼤㼍㼙㼜㼘㼑㼟㻌㼛㼒㻌㻿㼜㼑㼏㼠㼞㼡㼙㼟㻌㼛㼒㻌㻲㻮㻳㻌㻞䠊㻲㻮㻳 䛾ືసཎ⌮㻌㻌 㻌 䛣䜜䜙䛾ヨ㦂䜢㋃䜎䛘䚸ᾮయ❅⣲䜔ᾮయ䝦䝸䜴䝮䜢౑䛳䛯᭱ึ䛻 㻲㻮㻳 䝉䞁䝃䛾ືసཎ⌮䜢ㄝ᫂䛩䜛䚹䝣䜯䜲䝞䛾୍෭༷ヨ㦂䜢⾜䛔䚸㻞㻜㻌 㻷 ௨ୗ䛾 ᗘᇦ䛷䜒Ἴ㛗ኚ໬䛾ឤᗘ䜢➃䛛䜙ᑟධ䛥䜜䛯ⓑⰍග䛜䚸䜾䝺䞊䝔䜱䞁䜾㒊ศ䜢㏻㐣䛩䜛䚹⥔ᣢ䛩䜛䛯䜑䛾㔠ᒓ἞ල䛾㛤Ⓨ䜢᳨ウ䛧䛶䛔䜛㼇㻟㼉䚹㻌䛣䛾᫬䚸᱁Ꮚ㛫㝸䛸䝣䜯䜲䝞䝁䜰䛾ᒅᢡ⋡䛾✚䛷つᐃ䛥䜜䜛䚸㻌ᐇຠⓗ䛺ග㊰㛗䛥䛻ᑐᛂ䛩䜛Ἴ㛗ᡂศ䛰䛡䛜䚸㑅ᢥⓗ䛻཯㻠䠊䝞䜲䝯䝍䝹἞ල䛾฼⏝㻌ᑕ䛥䜜䚸ṧ䜚䛾Ἴ㛗ᡂศ䛿䛭䛾䜎䜎䜾䝺䞊䝔䜱䞁䜾㒊ศ䜢㏻䜚㔠ᒓ἞ල䛸䛧䛶䚸䝞䜲䝯䝍䝹䛾฼⏝䜢᳨ウ䛧䛶䛔䜛䚹㻲㼕㼓㻚㻟ᢤ䛡䜛䚹 ᗘኚ໬䜔እຊ䛾స⏝➼䛾ᵝ䚻䛺እᅉ䛻䜘䜚䚸᱁Ꮚ䛻䚸⌧ᅾ⪃䛘䛶䛔䜛 ᗘ᳨ฟ䛻⮳䜛ὶ䜜䜢䛾䛫䜛䚹䛣䛣䛷䛿䚸䛾㛫㝸䛜ቑῶ䛧䛯ሙྜ䚸཯ᑕ䛥䜜䛶ᡠ䛳䛶᮶䜛ග䛾Ἴ㛗䛜䚸䜾䝺䞊䝔䜱䞁䜾㒊ศ䜢௓䛧䛶䝣䜯䜲䝞䝁䜰䛛䜙䜽䝷䝑䝗㒊ศ䜈䛸䛭䜜䛻ྜ䜟䛫䛶ኚ໬䛩䜛䚹㻲㻮㻳 䛾ᣢ䛴䛣䛾ᛶ㉁䜢฼⏝䛩䜛䛸䚸ᰁ䜏ฟ䛩䚸䜽䝷䝑䝗䝰䞊䝗䛸࿧䜀䜜䜛ග䜢฼⏝䛧䛯᪉ἲ䜢ㄝ᫂཯ᑕග䛾Ἴ㛗ኚ໬䜢 ᐃ䛩䜛஦䛷䚸䜾䝺䞊䝔䜱䞁䜾䛜タ⨨䛥䛩䜛䚹 ᗘ䛾పୗ䛻䜘䛳䛶෾⤖䛧䛯䝞䜲䝯䝍䝹䛾⮬⏤ᗘ䜢䚸䜽䜜䛶䛔䜛ሙᡤ䛻䛚䛡䜛䚸 ᗘ䜔ᛂຊ䛾ኚື䛾ᵝᏊ䜢▱䜛஦䝷䝑䝗䝰䞊䝗䜢౑䛳䛶ᅇ᚟䛥䛫䚸⎔ቃ ᗘ᫬ᛂ䛨䛯⇕཰⦰䜢㉳䛜ฟ᮶䜛䚹㻌
䛣䛥䛫䜛஦䜢≺䛔䛸䛧䛶䛚䜚䚸Ⓨ⏕䛧䛯཰⦰䛻䜘䜛ᛂຊኚ໬䜢㻌෌䜃 㻲㻮㻳 䛷᳨▱䛩䜛஦䛷䚸⎔ቃ ᗘ䜢 ᐃ䛩䜛≺䛔䛷䛒䜛䚹㻌
Fiber
Spectrum
OpticalAmplifierCirculator

Analyzer

SuperInsulator

Power
Meter

WarmSide

FBG

StepͲ1

BimetalColdSide

SuperInsulator

StepͲ2FBG …FBG

CladͲmodeleakage

Bimetal㻲㼕㼓㻚㻝㻌㻿㼏㼔㼑㼙㼍㼠㼕㼏㻌㼛㼒㻌㻻㼜㼠㼕㼏㼍㼘㻌㻲㼘㼛㼣㼟㻌㼕㼚㼏㼘㼡㼐㼕㼚㼓㻌㻲㻮㻳㻌㻌FBG

Lighting

StepͲ3㻲㼕㼓㻚㻝㻌 䛻♧䛧䛯㓄⨨ᅗ䛛䜙䜒ゎ䜛㏻䜚䚸㻲㻮㻳 䝉䞁䝃䛾ሙྜ䚸䜚䛯䛔ᴟప 㡿ᇦ䛻ᑟධ䛩䜛ᚲせ䛜䛒䜛䛾䛿䚸䜾䝺䞊䝔䜱䞁䜾㒊ศ䜢ྵ䜐ග䝣䜯䜲䝞୍ᮏ䛾䜏䛷῭䜐䚹ᑟධ䛥䜜䛯ග䛿䝁䜰ෆ䜢඲཯ᑕ䛧䛺䛜䜙₃䜜䛺䛟ఏ䜟䜛஦䛸䚸䝣䜯䜲䝞䜢ᵓᡂ䛩䜛䜺䝷䝇䛾⇕ఏᑟ⋡䛿㔠ᒓ䛾 㻝㻛㻝㻜 ௨ୗ䛷䛒䜛஦䛛䜙䚸ᚑ᮶䛾᢬ᢠయ䛸␗䛺䜚䚸Ⓨ⇕䜔⇕౵ධ䜢Ⓨ⏕䛥䛫䜛ᜍ䜜䛜↓
䛔Ⅼ䛜䚸㻲㻮㻳 䜢ᴟప ᇦ⏝ ᗘィ䛸䛧䛶⏝䛔䜛᭱኱䛾⌮⏤䛷䛒䜛䚹᭦䛻ୖ䛷ㄝ᫂䛧䛯䜘䛖䛻䚸䛒䜛᱁Ꮚ㛫㝸䛾䜾䝺䞊䝔䜱䞁䜾㒊ศ䜢཯ᑕ䛥䜜䛪䛻㏻䜚ᢤ䛡䛯ⓑⰍග䛿䚸㐪䛖᱁Ꮚ㛫㝸䛾䜾䝺䞊䝔䜱䞁䜾䜈䛾ධຊග䛸䛧䛶౑䛖஦䛜ฟ᮶䜛䛾䛷䚸୍ᮏ䛾ග䝣䜯䜲䝞䛻␗䛺䜛㛫㝸䛾䜾䝺䞊䝔䜱䞁䜾䜢ከᩘⅬタ䛡䜛஦䛷䚸ᐜ᫆䛻 ᐃⅬ䛾ከⅬ໬䛜ྍ⬟䛺Ⅼ䜒䚸㻲㻮㻳 䝉䞁䝃䛾ⴭ䛧䛔≉ᚩ䛾୍䛴䛷䛒䜛䚹㻌

WarmedUp&Extending
ShrinkingDown㻌㻲㼕㼓㻚㻟㻌㻿㼏㼔㼑㼙㼍㼠㼕㼏㼟㻌㼛㼒㻌㻵㼙㼜㼘㼑㼙㼑㼚㼠㼍㼠㼕㼛㼚㻌㼛㼒㻌㻮㼕㼙㼑㼠㼍㼘㻌㻌ཧ⪃ᩥ⊩㻌㻝㻚㻌 㻴㻚㻌㼅㼍㼙㼍㼐㼍㻘㻌㼑㼠㻌㼍㼘㻚㻦㻌㻭㼎㼟㼠㼞㼍㼏㼠㼟㻌㼛㼒㻌㻯㻿㻿㻶㻌㻯㼛㼚㼒㼑㼞㼑㼚㼏㼑㻘㻌㻔㻞㻜㻝㻞㻕㻌㼜㼜㻚㻣㻞㻌
㻞㻚㻌㻴㻚㻌㻿㼔㼕㼙㼕㼦㼡㻘㻌㼑㼠㻌㼍㼘㻚㻦㻌㻼㼞㼛㼏㼑㼑㼐㼕㼚㼓㼟㻌㼛㼒㻌㼠㼔㼑㻌㻝㻟㼠㼔㻌㻭㼚㼚㼡㼍㼘㻌㻹㼑㼑㼠㼕㼚㼓㻌㼛㼒㻌㻼㼍㼞㼠㼕㼏㼘㼑㻌㻭㼏㼏㼑㼘㼑㼞㼍㼠㼛㼞㻌㻿㼛㼏㼕㼑㼠㼥㻌㼛㼒㻌㻶㼍㼜㼍㼚㻌㻔㻞㻜㻝㻢㻕㻌㼜㼜㻚㻝㻞㻤㻝㻌㻟㻚㻌 㻴㻚㻌㻿㼔㼕㼙㼕㼦㼡㻘㻌㼑㼠㻌㼍㼘㻚㻦㻌㻼㼞㼛㼏㼑㼑㼐㼕㼚㼓㼟㻌㼛㼒㻌㼠㼔㼑㻌㻝㻠㼠㼔㻌㻭㼚㼚㼡㼍㼘㻌㻹㼑㼑㼠㼕㼚㼓㻌㼛㼒㻌㻼㼍㼞㼠㼕㼏㼘㼑㻌㻭㼏㼏㼑㼘㼑㼞㼍㼠㼛㼞㻌㻿㼛㼏㼕㼑㼠㼥㻌㼛㼒㻌㻶㼍㼜㼍㼚㻌㻔㻞㻜㻝㻣㻕㻌― 144 ―

第95回

2017年度秋季低温工学・超電導学会