1C-a01

磁気冷凍機☢Ẽ෭෾ᛂ⏝䛾䛯䜑䛾⌫≧ 㻴㼛㻺 䛾ྜᡂ䛸☢Ẽ≉ᛶホ౯㻌㻿㼥㼚㼠㼔㼑㼟㼕㼟㻌㼛㼒㻌㼟㼜㼔㼑㼞㼕㼏㼍㼘㻌㻴㼛㻺㻌㼒㼛㼞㻌㼠㼔㼑㻌㼍㼜㼜㼘㼕㼏㼍㼠㼕㼛㼚㻌㼛㼒㻌㼙㼍㼓㼚㼑㼠㼕㼏㻌㼞㼑㼒㼞㼕㼓㼑㼞㼍㼠㼕㼛㼚㻌㼍㼚㼐㻌㼑㼟㼠㼕㼙㼍㼠㼕㼛㼚㻌㼛㼒㻌㼠㼔㼑㼕㼞㻌㼙㼍㼓㼚㼑㼠㼕㼏㻌㼜㼞㼛㼜㼑㼞㼠㼕㼑㼟㻌ᐑᚋ ຬኴ䠈ᖹᒣ ᝆ௓䠈ఀ⃝ ᣅᚿ䠈୰ᕝ ㈗䠈ᒣᮏ Ꮥኵ䠈⸨ᮏ 㟹䠄㜰኱䠅䠗ධỤ ᖺ㞝㸪୰ᮧ ⱥḟ㸦୕ᚨ㸧MIYAUSHIRO Yuta䠈HIRAYAMA Yusuke, IZAWA Takushi, NAKAGAWA Takashi, YAMAMOTO Takao,
FUJIMOTO Yasushi (Osaka Univ.); IRIE Toshio, NAKAMURA Eiji (SANTOKU)
E-mail: y-miyaushiro@mit.eng.osaka-u.ac.jp㻟䠊⤖ᯝ㻌
HIP ἲ䛻䜘䜚๭䜜䞉ṍ䜏䛾䛺䛔 HoN ⌫䜢ᚓ䜛䛣䛸䛻ᡂຌ䛧
䛯䠄Fig䠊1䠅䠊 䜎䛯䠈⏕ᡂ┦䛿 HoN ༢┦䛷䛒䜛䛣䛸䜢☜ㄆ䛧䛯䠊
Fig.2 䛻☢໬ ᐃ䛾⤖ᯝ䜢♧䛩䠊 HoN 䛾 Tc 䛷䛒䜛 15 K ௜㏆䛷ᛴ⃭䛻☢໬䛾್䛜ῶᑡ䛩䜛ᵝᏊ䛜ぢ䜙䜜䛯䠊 Fig.3 䛻☢໬ ᐃ䛾⤖ᯝ䛛䜙⟬ฟ䛧䛯 HoN ⌫䛾'S 䜢♧䛩䠊 Tc 䛻䛚䛔䛶䝢䞊䜽䜢ᣢ䛱䠈ඛ⾜◊✲䛷ᚓ䛯㠀⌫≧䛾 HoN ヨᩱ䛷䛾್䛸▩┪䛧䛺䛔್䜢♧䛩䛣䛸䜢☜ㄆ䛧䛯䠊 䛣䜜䜙䛾⤖ᯝ䛛䜙䠈௒ᅇᚓ䛯 HoN ⌫ᮦᩱ䛿෭෾ヨ㦂䜢⾜䛖䛻㊊䜛ヨᩱ䛷䛒䜛䛸䛔䛘䠈෭෾⬟ຊ䛾ᐇド䛜ᮇᚅ䛥䜜䜛䠊
ㅮ₇䛻䛚䛔䛶䛿䠈䛣䜜䜙䛾⤖ᯝ䛻ຍ䛘䛶 HoN ⌫䛷䛾ẚ⇕ ᐃ䛾⤖ᯝ䠈䜎䛯䛭䛣䛛䜙⟬ฟ䛧䛯'S䠈䛚䜘䜃᩿⇕ᾘ☢
ᗘኚ໬('T) 䜒ే䛫䛶ሗ࿌䛩䜛䠊㻠䠊ཧ⪃ᩥ⊩㻌
Y. Hirayama, et al., IEEE Transaction on Magnetics(2008),
44(11, Pt.1), 2997-3000.

2500

Magnetization M (kJ T-1m-3)㻞䠊ᐇ㦂㻌
Ho 㔠ᒓ⌫䠄䃥0.71䡚0.85 mm䠈⣧ᗘ 99.5 %䠅䜢 HIP䠄Hot
Isostatic Pressing䠅ἲ䛻䜘䜚 200 MPa 䛾❅⣲䜺䝇୰䛷᭱㧗฿㐩
ᗘ 1500 䉝䛻ಖᣢ䛧❅໬䛥䛫䛯䠊 ⏕ᡂ≀㉁┦䜢 X ⥺ᅇᢡἲ䛻䜘䜚ほᐹ䛧䛯䠊 䜎䛯䠈5 ~ 100 K 䛷䛾☢໬䜢 PPMS-6000(Quantum Design Ltd.)䜢⏝䛔䛶 0 ~ 5 T 䛾☢ሙᙉᗘ䛾䜒䛸䛷ᐃ䛧䠈ບ☢≧ែ䛛䜙ᾘ☢䛧䛯᫬䛾'S 䜢⟬ฟ䛧䠈HoN 䛾☢Ẽ෭෾ᮦᩱ䛸䛧䛶䛾ᛶ⬟䜢ホ౯䛧䛯䠊

Fig.1 Photograph of spherical HoN

5T
4T
3T
2T
1T
0.5 T
0.1 T
0.05 T
0T

2000
1500
1000
500
0

0

20

40

60

Temperature T (K)

80

100

Fig.2 Magnetization of spherical HoN at various
temperatures and magnetic fields.

Magnetic entropy change 'S (kJ K-1m-3)㻝䠊䛿䛨䜑䛻
䜽䝸䞊䞁䛷㈨※㇏ᐩ䛺䜶䝛䝹䜼䞊※䛸䛧䛶Ỉ⣲䛻ὀ┠䛜㞟䜎䛳䛶䛔䜛䠊㻌 䛭䛾ᐇ⏝䜢⪃䛘䛯㝿䛻䛿䇾ᾮయỈ⣲䇿䛜㉁㔞Ỉ⣲ᐦᗘ䠈య✚Ỉ⣲ᐦᗘ䛸䜒䛻኱䛝䛟䠈㍺㏦䜔㈓ⶶ䛾㠃䛷ඃ఩䛷䛒䜛䠊 䛧䛛䛧Ỉ⣲䜢ᾮ໬䛩䜛䛻䛿 20 K 䛸䛔䛖ప 䛜ᚲせ䛻䛺䜚䚸⌧⾜䛾Ẽయ෭෾ἲ䛷䛿≀㉁䛾⇕ᐜ㔞䛜ᑠ䛥䛟䛺䜛ప䛻䛚䛔䛶ຠ⋡䛜ᝏ䛟䛺䜛䠊 ᡃ䚻䛿䠈ప 䛷䜒㧗ຠ⋡䜢ᮇᚅ䛷䛝䜛䇾☢Ẽ෭෾ἲ䇿䛾㐺⏝䜢◊✲䛧䛶䛔䜛䠊 ᚑ᮶ἲ䛷❅⣲ᾮ໬ ᗘ䛾 77 K 䜎䛷෭෾䛧䛯ᚋ䛾 20 K 䜎䛷䛻☢Ẽ෭෾ἲ䜢⏝䛔䜛䛣䛸䜢᝿ᐃ䛧䠈䛣䛾 ᗘᇦ䛷㧗䛔ᛶ⬟䜢ᣢ䛴☢ᛶయᮦᩱ䛾◊✲䜢㐍䜑䛶䛔䜛䠊 䛣䜜䜎䛷䛻ᕼᅵ㢮ඖ⣲䛾❅໬≀(ErN,
HoN, DyN, TbN, GdN)䛜 5䡚65 K 䛾 ᗘᇦ䛷䜻䝳䝸䞊Ⅼ䠄Tc䠅
䜢ᣢ䛱䠈኱䛝䛺☢Ẽ䜶䞁䝖䝻䝢䞊ኚ໬䠄'S䠅䜢♧䛩䛣䛸䜢ሗ࿌䛧
䛶䛝䛯 1䠊㻌 ☢Ẽ෭෾ᮦᩱ䛾ᐇ⏝໬䛻䛿䠈඘ሸ⋡䜔ຊᏛⓗ䛺ᙉᗘ䠈⇕஺᥮ᛶ䜢⪃៖䛩䜜䜀⌫≧ᮦᩱ䛸䛩䜛䛣䛸䛜ồ䜑䜙䜜䜛䠊 ᡃ䚻䛿䛣䜜䜎䛷䛻䠈☢Ẽ෭෾䛜㛤ጞ䛥䜜䜛ᾮయ❅⣲ᗘᇦ䛷㔜せ䛺ᮦᩱ䛷䛒䜛 GdN(Tc = 65 K) 䛾⌫≧ᮦᩱ໬䛻ᡂຌ䛧䠈☢Ẽ෭෾ヨ㦂䛻䜘䜚 50 ~ 65 K 䛾 ᗘ㡿ᇦ䛷䛾෭෾䜢ᐇド䛧䛶䛔䜛䠊
ᮏ◊✲䛷䛿䠈Ỉ⣲ᾮ໬ ᗘ௜㏆䛷௚䛾ᕼᅵ㢮❅໬≀䛸ẚ䜉䛶䜒኱䛝䛺'S 䜢ᣢ䛱䠈☢Ẽ෭෾Ỉ⣲ᾮ໬䛾᭱⤊ẁ㝵䜢ᢸ䛖䜉䛝ᮦᩱ䛷䛒䜛 HoN(Tc =15 K)䜢⌫≧ᮦᩱ໬䛧䠈☢Ẽ෭෾ヨ㦂䜢ぢᤣ䛘䛯☢Ẽ≉ᛶ䛾 ᐃ䜢⾜䛳䛯䠊― 47 ―

500
5T
4T
3T
2T
1T
0.5 T
0.1 T

400
300
200
100
0

0

20

40

60

Temperature T (K)

80

100

Fig.3 Magnetic entropy change 'S of spherical HoN asfunction of temperature at various fields.

第83回

2010年度秋季低温工学・超電導学会

1C-a02

磁気冷凍機

Ỉ⣲☢Ẽ෭෾⏝ 㻾㻯㼛㻞 ⣔䛾☢Ẽ⇕㔞≉ᛶ㻌㻹㼍㼓㼚㼑㼠㼛㼏㼍㼘㼛㼞㼕㼏㻌㼑㼒㼒㼑㼏㼠㻌㼛㼒㻌㻾㻯㼛㻞㻌㼏㼛㼙㼜㼛㼡㼚㼐㼟㻌㼒㼛㼞㻌㼔㼥㼐㼞㼛㼓㼑㼚㻌㼙㼍㼓㼚㼑㼠㼕㼏㻌㼞㼑㼒㼞㼕㼓㼑㼞㼍㼠㼛㼞㻌㻌ᮒ㻌 ஼ᐥ䠄㔠ἑ኱䠅㻘ᮅᮏ㻌 ᾏ䠄㔠ἑ኱䠅㻘すᮧ㻌 ඃ኱䠄㔠ἑ኱䠅㻘ᒣ⏣㻌 ၨᚿ䠄㔠ἑ኱䠅㻘㻌 ᯇᮏ㻌 ᏹ୍䠄㔠ἑ኱䠅㻘἟⃝㻌 ‫๎ڕ‬䠄㻺㻵㻹㻿䠅㻌㼆㻴㼁㻌㼅㼕㼥㼕㼚㻔㻷㼁㻕䠈㻭㻿㻭㻹㻻㼀㻻㻌㻷㼍㼕㻌㻔㻷㼁㻕㻘㻌㻺㻵㻿㻴㻵㻹㼁㻾㻭㻌㼅㼡㼐㼍㻌㻔㻷㼁㻕㻘㻌㼅㻭㻹㻭㻰㻭㻌㻷㼑㼕㼟㼔㼕㻔㻷㼁㻕㻘㻌㻹㻭㼀㻿㼁㻹㻻㼀㻻㻌㻷㼛㼕㼏㼔㼕㻔㻷㼁㻕㻘㻌㻺㼁㻹㻭㼆㻭㼃㻭㻌㼀㼍㼠㼑㼚㼛㼞㼕㻔㻺㻵㻹㻿㻕㻌㻱㻙㼙㼍㼕㼘㻦㻌㼦㼥㼥㻜㻣㻞㻥㻬㼟㼠㼡㻚㼗㼍㼚㼍㼦㼍㼣㼍㻙㼡㻚㼍㼏㻚㼖㼜㻌㻌㻝䠊㻵㻺㼀㻾㻻㻰㼁㻯㼀㻵㻻㻺㻌㻠㻚㻌㻾㻱㻿㼁㻸㼀㻿㻌㼍㼚㼐㻌㻰㻵㻿㻯㼁㻿㻿㻵㻻㻺㻌㻌 㻌 㻌 㻹㼍㼓㼚㼑㼠㼕㼏㻌 㼞㼑㼒㼞㼕㼓㼑㼞㼍㼠㼕㼛㼚㻌 㼔㼍㼟㻌 㼎㼑㼑㼚㻌 㼞㼑㼓㼍㼞㼐㼑㼐㻌 㼍㼟㻌 㼍㻌 㼓㼛㼛㼐㻌㻲㼕㼓㼡㼞㼑㻌 㻞㻌 㼞㼑㼜㼞㼑㼟㼑㼚㼠㼟㻌 㼠㼞㼍㼚㼟㼕㼠㼕㼛㼚㻌 㼠㼑㼙㼜㼑㼞㼍㼠㼡㼞㼑㼟㻌 㼛㼒㻌㼙㼑㼠㼔㼛㼐㻌 㼒㼛㼞㻌 㼔㼥㼐㼞㼛㼓㼑㼚㻌 㼘㼕㼝㼡㼑㼒㼍㼏㼠㼕㼛㼚㻘㻌 㼎㼑㼏㼍㼡㼟㼑㻌 㼔㼕㼓㼔㻌 㼑㼒㼒㼕㼏㼕㼑㼚㼏㼥㻌 㼕㼟㻌㻔㻱㼞㼤㻴㼛㻝㻙㼤㻕㻯㼛㻞㻌㻔㼤㻩㻜㻘㻌㻜㻚㻡㻞㻘㻌㻝㻕㻌㼍㼚㼐㻌㻔㻱㼞㼥㻰㼥㻝㻙㼥㻕㻯㼛㻞㻌㻔㻌㼥㻩㻜㻚㻠㻣㻘㻌㻜㻚㻤㻝㻘㻌㼑㼤㼜㼑㼏㼠㼑㼐㻚㻌 㼁㼟㼕㼚㼓㻌 㼍㻌 㼞㼑㼓㼑㼚㼑㼞㼍㼠㼕㼢㼑㻌 㼠㼔㼑㼞㼙㼍㼘㻌 㼏㼥㼏㼘㼑㻘㻌 㼙㼍㼓㼚㼑㼠㼕㼏㻌㻝㻕㻌㼟㼑㼞㼕㼑㼟㻚㻌㻵㼠㻌㼕㼟㻌㼟㼔㼛㼣㼑㼐㻌㼠㼔㼍㼠㻌㼀㼏㻌㼕㼚㼏㼞㼑㼍㼟㼑㼟㻌㼍㼘㼙㼛㼟㼠㻌㼘㼕㼚㼑㼍㼞㼘㼥㻌㼍㼓㼍㼕㼚㼟㼠㻌㼞㼑㼒㼞㼕㼓㼑㼞㼍㼠㼕㼛㼚㻌 㼏㼍㼚㻌 㼍㼏㼔㼕㼑㼢㼑㻌 㼣㼕㼐㼑㻌 㼛㼜㼑㼞㼍㼠㼕㼛㼚㻌 㼠㼑㼙㼜㼑㼞㼍㼠㼡㼞㼑㻌 㼟㼜㼍㼚㻘㻌㼐㼑㻌 㻳㼑㼚㼚㼑㼟㻌 㼒㼍㼏㼠㼛㼞㻚㻌 㻭㼚㼐㻌 㼠㼔㼑㻌 㼀㼏㻌 㼛㼒㻌 㻔㻱㼞㼤㻴㼛㻝㻙㼤㻕㻯㼛㻞㻌 㼍㼚㼐㻌㼠㼔㼕㼟㻌 㼕㼟㻌 㼠㼔㼑㻌 㼞㼑㼍㼟㼛㼚㻌 㼣㼔㼥㻌 㼕㼠㻌 㼕㼟㻌 㼟㼛㻌 㼑㼤㼠㼑㼚㼟㼕㼢㼑㼘㼥㻌 㼟㼠㼡㼐㼕㼑㼐㻌 㼕㼚㻌 㼠㼔㼑㼟㼑㻌㻔㻱㼞㼥㻰㼥㻝㻙㼥㻕㻯㼛㻞㻌㼞㼕㼟㼑㻌㼣㼕㼠㼔㻌㼠㼔㼑㻌㼐㼑㼏㼞㼑㼍㼟㼕㼚㼓㻌㼛㼒㻌㼤㻌㼍㼚㼐㻌㼥㻘㻌㼞㼑㼟㼜㼑㼏㼠㼕㼢㼑㼘㼥㻚㻌㼐㼍㼥㼟㻚㻌
㻵㼠㻌㼕㼟㻌㼏㼛㼚㼏㼘㼡㼐㼑㼐㻌㼠㼔㼍㼠㻌㼠㼔㼑㻌㼠㼑㼙㼜㼑㼞㼍㼠㼡㼞㼑㻌㼞㼍㼚㼓㼑㻌㼛㼒㻌㼙㼍㼓㼚㼑㼠㼛㼏㼍㼘㼛㼞㼕㼏㻌㻌 㻌 㻌 㻹㼍㼓㼚㼑㼠㼛㼏㼍㼘㼛㼞㼕㼏㻌 㼑㼒㼒㼑㼏㼠㻘㻌 㼣㼔㼕㼏㼔㻌 㼞㼑㼒㼑㼞㼟㻌 㼠㼛㻌 㼠㼔㼑㻌 㼠㼔㼑㼞㼙㼍㼘㻌㼑㼒㼒㼑㼏㼠㻌 㼏㼍㼚㻌 㼎㼑㻌 㼏㼛㼚㼠㼞㼛㼘㼘㼑㼐㻌 㼎㼥㻌 㼟㼡㼎㼟㼠㼕㼠㼡㼠㼕㼛㼚㻌 㼛㼒㻌 㼠㼔㼑㻌 㼞㼍㼞㼑㻌 㼑㼍㼞㼠㼔㻌㼞㼑㼟㼜㼛㼚㼟㼑㻌㼛㼒㻌㼙㼍㼠㼑㼞㼕㼍㼘㻌㼠㼛㻌㼠㼔㼑㻌㼢㼍㼞㼕㼍㼠㼕㼛㼚㻌㼛㼒㻌㼠㼔㼑㻌㼍㼜㼜㼘㼕㼑㼐㻌㼙㼍㼓㼚㼑㼠㼕㼏㻌㼑㼘㼑㼙㼑㼚㼠㼟㻌㼜㼞㼛㼜㼛㼞㼠㼕㼛㼚㼍㼘㼘㼥㻚㻌 㻌㼒㼕㼑㼘㼐㻘㻌 㼕㼟㻌 㼠㼔㼑㻌 㼎㼍㼟㼕㼏㻌 㼜㼞㼕㼚㼏㼕㼜㼘㼑㻌 㼛㼒㻌 㼠㼔㼑㻌 㼙㼍㼓㼚㼑㼠㼕㼏㻌 㼞㼑㼒㼞㼕㼓㼑㼞㼍㼠㼕㼛㼚㻚㻌 㻵㼠㻌㼐㼑㼜㼑㼚㼐㼟㻌 㼛㼚㻌 㼎㼛㼠㼔㻌 㼠㼑㼙㼜㼑㼞㼍㼠㼡㼞㼑㻌 㼍㼚㼐㻌 㼙㼍㼓㼚㼑㼠㼕㼏㻌 㼒㼕㼑㼘㼐㻌 㼍㼚㼐㻌 㼔㼍㼟㻌 㼍㻌㼜㼑㼍㼗㻌 㼍㼞㼛㼡㼚㼐㻌 㼠㼞㼍㼚㼟㼕㼠㼕㼛㼚㻌 㼠㼑㼙㼜㼑㼞㼍㼠㼡㼞㼑㻌 㼀㼏㻚㻌 㻵㼚㻌 㼛㼞㼐㼑㼞㻌 㼠㼛㻌 㼑㼚㼘㼍㼞㼓㼑㻌㼠㼔㼑㻌 㼠㼑㼙㼜㼑㼞㼍㼠㼡㼞㼑㻌 㼟㼜㼍㼚㻌 㼛㼒㻌 㼠㼔㼑㻌 㼠㼔㼑㼞㼙㼍㼘㻌 㼏㼥㼏㼘㼑㻘㻌 㼕㼠㻌 㼕㼟㻌 㼞㼑㼝㼡㼕㼞㼑㼐㻌 㼠㼛㻌㼡㼟㼑㻌㼟㼑㼢㼑㼞㼍㼘㻌㼙㼍㼠㼑㼞㼕㼍㼘㼟㻌㼣㼕㼠㼔㻌㼐㼕㼒㼒㼑㼞㼑㼚㼠㻌㼀㼏㻚㻌㻌㻞㻚㻌㻸㻭㼂㻱㻿㻌㻼㻴㻭㻿㻱㻌㻯㻻㻹㻼㻻㼁㻺㻰㻿㻌㻾㻯㼛㻞㻌㻌 㻌 㻌 㻌 㼃㼕㼠㼔㻌 㼠㼔㼑㼕㼞㻌 㼘㼍㼞㼓㼑㻌 㼙㼍㼓㼚㼕㼠㼡㼐㼑㻌 㼛㼒㻌 㼠㼔㼑㻌 㼙㼍㼓㼚㼑㼠㼛㼏㼍㼘㼛㼞㼕㼏㻌㼜㼛㼠㼑㼚㼠㼕㼍㼘㻘㻌 㻾㻯㼛㻞㻌㻔㻾㻦㻌 㼞㼍㼞㼑㻌㼑㼍㼞㼠㼔㻕㻌㼏㼛㼙㼜㼛㼡㼚㼐㻌 㼔㼍㼟㻌㼐㼞㼍㼣㼚㻌 㼍㻌 㼘㼛㼠㻌 㼛㼒㻌㼍㼠㼠㼑㼚㼠㼕㼛㼚㼟㻌 㼕㼚㻌 㼠㼔㼑㻌 㼑㼒㼒㼛㼞㼠㻌 㼛㼒㻌 㼟㼑㼍㼞㼏㼔㼕㼚㼓㻌 㼒㼛㼞㻌 㼞㼑㼒㼞㼕㼓㼑㼞㼍㼚㼠㼟㻚㻌 㼀㼔㼑㼕㼞㻌㼑㼚㼠㼞㼛㼜㼥㻌㼏㼔㼍㼚㼓㼑㻌㼍㼠㼠㼞㼕㼎㼡㼠㼑㼟㻌㼠㼛㻌㼎㼛㼠㼔㻌㻟㼐㻌㼕㼠㼕㼚㼑㼞㼍㼚㼠㻌㼑㼘㼑㼏㼠㼞㼛㼚㼟㻌㼒㼞㼛㼙㻌㻯㼛㻌㼍㼚㼐㻌㻠㼐㻌㼘㼛㼏㼍㼘㼕㼦㼑㼐㻌㼙㼛㼙㼑㼚㼠㼟㻌㼒㼞㼛㼙㻌㼠㼔㼑㻌㼞㼍㼞㼑㻌㼑㼍㼞㼠㼔㻌㻾㻘㻌㼍㼚㼐㻌㼠㼔㼑㼕㼞㻌㼠㼞㼍㼚㼟㼕㼠㼕㼛㼚㻌㼠㼑㼙㼜㼑㼞㼍㼠㼡㼞㼑㼟㻌㼏㼛㼢㼑㼞㻌㼍㻌㼞㼍㼚㼓㼑㻌㼒㼞㼛㼙㻌㻞㻜㻷㻌㼠㼛㻌㻤㻜㻷㻘㻌㼣㼔㼕㼏㼔㻌㼕㼟㻌㼟㼡㼕㼠㼍㼎㼘㼑㻌㼒㼛㼞㻌㼔㼥㼐㼞㼛㼓㼑㼚㻌㼞㼑㼒㼞㼕㼓㼑㼞㼍㼠㼕㼛㼚㻚㻌㻌㼃㼑㻌 㼔㼍㼢㼑㻌 㼟㼠㼡㼐㼕㼑㼐㻌 㼠㼣㼛㻌 㼟㼑㼞㼕㼑㼟㻘㻌 㻔㻱㼞㼤㻴㼛㻝㻙㼤㻕㻯㼛㻞㻌 㼍㼚㼐㻌㻲㼕㼓㻚㻌㼀㼞㼍㼚㼟㼕㼠㼕㼛㼚㻌㼠㼑㼙㼜㼑㼞㼍㼠㼡㼞㼑㻌㼍㼓㼍㼕㼚㼟㼠㻌㼠㼔㼑㻌㼐㼑㻌㻳㼑㼚㼚㼑㼟㻌㼒㼍㼏㼠㼛㼞㻌㻔㻱㼞㼥㻰㼥㻝㻙㼥㻕㻯㼛㻞㻘㻌㼍㼙㼛㼚㼓㻌㼣㼔㼕㼏㼔㻌㼠㼔㼑㼞㼑㻌㼍㼞㼑㻌㼜㼡㼞㼑㻌㼎㼕㼚㼍㼞㼥㻌㼏㼛㼙㼜㼛㼡㼚㼐㼟㻌㻲㼕㼓㼡㼞㼑㻌㻟㻌㼟㼔㼛㼣㼟㻌㼠㼔㼑㻌㼑㼚㼠㼞㼛㼜㼥㻌㼛㼒㻌㻱㼞㻜㻚㻡㻞㻴㼛㻜㻚㻠㻣㻯㼛㻞㻌㼍㼠㻌㼢㼍㼞㼕㼛㼡㼟㻌㼍㼟㻌㼣㼑㼘㼘㻌㼍㼟㻌㼠㼑㼞㼚㼍㼞㼥㻌㼛㼚㼑㼟㻚㻌㼀㼔㼑㻌㼏㼛㼙㼜㼛㼡㼚㼐㼟㻌㻰㼥㻘㻌㻴㼛㻌㼍㼚㼐㻌㻱㼞㻙㼎㼍㼟㼑㼐㻌㼙㼍㼓㼚㼑㼠㼕㼏㻌 㼒㼕㼑㼘㼐㼟㻌 㼒㼞㼛㼙㻌 㻜㻌 㼠㼛㻌 㻡㼀㻚㻌 㻱㼚㼠㼞㼛㼜㼥㻌 㼏㼍㼚㻌 㼎㼑㻌 㼛㼎㼠㼍㼕㼚㼑㼐㻌 㼎㼥㻌㻾㻯㼛㻞㻌 㼍㼞㼑㻌 㻸㼍㼢㼑㼟㻙㼜㼔㼍㼟㼑㻌 㼏㼛㼙㼜㼛㼡㼚㼐㼟㻌 㼣㼕㼠㼔㻌 㼍㻌 㼏㼡㼎㼕㼏㻌 㻹㼓㻯㼡㻞㻌㼕㼚㼠㼑㼓㼞㼍㼠㼕㼛㼚㻌㼛㼒㻌㼠㼔㼑㻌㼟㼜㼑㼏㼕㼒㼕㼏㻌㼔㼑㼍㼠㻚㻌㻴㼛㼣㼑㼢㼑㼞㻘㻌㼕㼠㻌㼕㼟㻌㼔㼍㼞㼐㻌㼠㼛㻌㼑㼢㼍㼘㼡㼍㼠㼑㻌㼟㼠㼞㼡㼏㼠㼡㼞㼑㻌㼍㼚㼐㻌㼍㻌㼒㼕㼞㼟㼠㻌㼛㼞㼐㼑㼞㻌㼜㼔㼍㼟㼑㻌㼠㼞㼍㼚㼟㼕㼠㼕㼛㼚㻌㼒㼞㼛㼙㻌㼜㼍㼞㼍㼙㼍㼓㼚㼑㼠㼕㼏㻌㼑㼚㼠㼞㼛㼜㼥㻌 㼖㼡㼙㼜㻌 㼍㼠㻌 㼒㼕㼞㼟㼠㻌 㼛㼞㼐㼑㼞㻌 㼠㼞㼍㼚㼟㼕㼠㼕㼛㼚㻌 㼒㼞㼛㼙㻌 㼠㼔㼑㻌 㼟㼜㼑㼏㼕㼒㼕㼏㻌 㼔㼑㼍㼠㻌㼠㼛㻌㼒㼑㼞㼞㼕㼙㼍㼓㼚㼑㼠㼕㼏㻌㼇㻝㼉㻚㻌㼙㼑㼍㼟㼡㼞㼑㼙㼑㼚㼠㻌 㼎㼥㻌 㼞㼑㼘㼍㼤㼍㼠㼕㼛㼚㻌 㼙㼑㼠㼔㼛㼐㻚㻌 㻱㼚㼠㼞㼛㼜㼥㻌 㼏㼔㼍㼚㼓㼑㻌 㼣㼍㼟㻌㼃㼑㻌 㼒㼛㼏㼡㼟㼑㼐㻌 㼛㼚㻌 㼠㼔㼑㻌 㼟㼡㼎㼟㼠㼕㼠㼡㼠㼕㼛㼚㻌 㼛㼒㻌 㼠㼔㼑㻌 㼠㼔㼞㼑㼑㻌 㼙㼍㼓㼚㼑㼠㼕㼏㻌㼏㼍㼘㼏㼡㼘㼍㼠㼑㼐㻌 㼒㼞㼛㼙㻌 㼠㼔㼑㻌 㼙㼍㼓㼚㼑㼠㼕㼦㼍㼠㼕㼛㼚㻌 㼡㼟㼕㼚㼓㻌 㻹㼍㼤㼣㼑㼘㼘䇻㼟㻌 㼞㼑㼘㼍㼠㼕㼛㼚㻘㻌㼘㼍㼚㼠㼔㼍㼚㼕㼐㼑㼟㻌 㻰㼥㻘㻌 㻴㼛㻘㻌 㻱㼞㻌 㼒㼛㼞㻌 㼠㼔㼑㻌 㼞㼍㼞㼑㻌 㼑㼍㼞㼠㼔㻌 㼙㼑㼠㼍㼘㻘㻌 㼒㼛㼞㻌 㼠㼔㼑㻌㼠㼔㼡㼟㻌 㼑㼚㼠㼞㼛㼜㼥㻌 㼠㼑㼙㼜㼑㼞㼍㼠㼡㼞㼑㻌 㼐㼕㼍㼓㼞㼍㼙㻌 㼣㼍㼟㻌 㼛㼎㼠㼍㼕㼚㼑㼐㻌 㼡㼟㼕㼚㼓㻌 㼎㼛㼠㼔㻌㼜㼡㼞㼜㼛㼟㼑㻌 㼛㼒㻌 㼗㼑㼑㼜㼕㼚㼓㻌 㼠㼔㼑㻌 㼙㼍㼓㼚㼑㼠㼕㼏㻌 㼠㼞㼍㼚㼟㼕㼠㼕㼛㼚㻌 㼍㼟㻌 㼒㼕㼞㼟㼠㻌 㼛㼞㼐㼑㼞㻌㼟㼜㼑㼏㼕㼒㼕㼏㻌㼔㼑㼍㼠㻌㼍㼚㼐㻌㼑㼚㼠㼞㼛㼜㼥㻌㼏㼔㼍㼚㼓㼑㻚㻌㼠㼞㼍㼚㼟㼕㼠㼕㼛㼚㻘㻌 㼟㼕㼚㼏㼑㻌 㼑㼤㼏㼑㼜㼠㻌 㼠㼔㼑㻌 㼍㼎㼛㼢㼑㻌 㼞㼍㼞㼑㻌 㼑㼍㼞㼠㼔㻌 㼑㼘㼑㼙㼑㼚㼠㼟㻘㻌 㼠㼔㼑㻌㼙㼍㼓㼚㼑㼠㼕㼏㻌㼜㼔㼍㼟㼑㻌㼠㼞㼍㼚㼟㼕㼠㼕㼛㼚㼟㻌㼏㼔㼍㼚㼓㼑㻌㼠㼛㻌㼟㼑㼏㼛㼚㼐㻌㼛㼞㼐㼑㼞㻚㻌㻌㻟㻚㻌㻱㼄㻼㻱㻾㻵㻹㻱㻺㼀㻌㻌 㻌 㻌 㼀㼔㼑㻌㼟㼍㼙㼜㼘㼑㼟㻌㼣㼑㼞㼑㻌㼜㼞㼑㼜㼍㼞㼑㼐㻌㼎㼥㻌㼕㼚㼐㼡㼏㼠㼕㼛㼚㻌㼔㼑㼍㼠㼕㼚㼓㻌㼍㼚㼐㻌㼣㼑㼞㼑㻌㼒㼘㼍㼗㼑㼟㻌㼍㼎㼛㼡㼠㻌㻜㻚㻞㻙㻜㻚㻠㻌㼙㼙㻌㼠㼔㼕㼏㼗㻌㼍㼚㼐㻌㻞㻜㼙㼙㻌㼎㼥㻌㻞㻜㼙㼙㻌㼘㼍㼞㼓㼑㻚㻌㻿㼛㼙㼑㻌㼛㼒㻌㼠㼔㼑㼙㻌㼣㼑㼞㼑㻌㼍㼚㼚㼑㼍㼘㼑㼐㻌㼕㼚㻌㼢㼍㼏㼡㼡㼙㻌㼍㼠㻌㻥㻜㻜ć㻌 㼒㼛㼞㻌㼍㼎㼛㼡㼠㻌㼛㼚㼑㻌㼣㼑㼑㼗㻚㻌㻼㼔㼛㼠㼛㻌㼛㼒㻌㼛㼚㼑㻌㼛㼒㻌㼠㼔㼑㻌㼟㼍㼙㼜㼘㼑㼟㻌㼣㼍㼟㻌㼟㼔㼛㼣㼚㻌㼕㼚㻌㻲㼕㼓㼡㼞㼑㻌㻝㻚㻌㻌㻌㻲㼕㼓㻚㻌㻱㼚㼠㼞㼛㼜㼥㻌㼛㼒㻌㻱㼞㻜㻚㻡㻞㻴㼛㻜㻚㻠㻣㻯㼛㻞㻌㼍㼠㻌㼢㼍㼞㼕㼛㼡㼟㻌㼙㼍㼓㼚㼑㼠㼕㼏㻌㼒㼕㼑㼘㼐㼟㻌㻌㻲㼕㼓㻚㻝㻌㻼㼔㼛㼠㼛㻌㼛㼒㻌㻱㼞㻜㻚㻡㻞㻴㼛㻜㻚㻠㻣㻯㼛㻞㻌㼜㼘㼍㼠㼑㼟㻌㻌 㼃㼑㻌 㼔㼍㼢㼑㻌 㼡㼟㼑㼐㻌 㼍㻌 㼏㼛㼙㼙㼑㼞㼏㼕㼍㼘㻌 㻿㻽㼁㻵㻰㻌 㼙㼍㼓㼚㼑㼠㼛㼙㼑㼠㼑㼞㻌 㼕㼚㻌㼙㼍㼓㼚㼑㼠㼕㼦㼍㼠㼕㼛㼚㻌㼙㼑㼍㼟㼡㼞㼑㼙㼑㼚㼠㼟㻌㼍㼚㼐㻌㼞㼑㼘㼍㼤㼍㼠㼕㼛㼚㻌㼙㼑㼠㼔㼛㼐㻌㼕㼚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㼕㼚㻌㼠㼔㼑㻌㼙㼍㼓㼚㼑㼠㼕㼏㻌㼒㼕㼑㼘㼐㻌㼒㼞㼛㼙㻌㻜㻌㼠㼛㻌㻡㼀㻚㻌㻌㻌㻭㻯㻷㻺㻻㼃㻸㻱㻰㻳㻱㻹㻱㼀㻌㻌 㻌 㻌 㻲㼕㼚㼍㼚㼏㼕㼍㼘㻌 㼟㼡㼜㼜㼛㼞㼠㻌 㼜㼞㼛㼢㼕㼐㼑㼐㻌 㼎㼥㻌 㻺㻱㻰㻻㻌 㼕㼚㻌 㼠㼔㼑㻌 㼜㼞㼛㼖㼑㼏㼠㻌 㼛㼒㻌㻿㼑㼍㼞㼏㼔㻌㼍㼚㼐㻌㻾㼑㼟㼑㼍㼞㼏㼔㻌㼛㼒㻌㻵㼚㼚㼛㼢㼍㼠㼕㼢㼑㻌㼍㼚㼐㻌㻸㼑㼍㼐㼕㼚㼓㻌㼀㼑㼏㼔㼚㼛㼘㼛㼓㼕㼑㼟㻘㻌㼕㼟㻌㼓㼞㼑㼍㼠㼘㼥㻌㼍㼜㼜㼞㼑㼏㼕㼍㼠㼑㼐㻚㻌㻌㻾㻱㻲㻱㻾㻱㻺㻯㻱㻌㼇㻝㼉㻌㻷㻚㻌㻹㼍㼠㼟㼡㼙㼛㼠㼛㻘㻌㼀㻚㻌㻷㼛㼡㼑㼚㻌㼑㼠㻌㼍㼘㻚㻦㻌㻭㻵㻼㻌㻯㼛㼚㼒㼑㼞㼑㼚㼏㼑㻌㼛㼚㻌㻸㼛㼣㻌㼀㼑㼙㼜㼑㼞㼍㼠㼡㼞㼑㻌㻼㼔㼥㼟㼕㼏㼟㻘㻌㻯㻼㻤㻡㻜㻌― 48 ―

第83回

2010年度秋季低温工学・超電導学会

1C-a03

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Ỉ⣲☢Ẽ෭෾⏝⌫≧໬ 㻾㼀䠎䠄㼀䠖㻺㼕䠈㻭㼘䠅⣔☢Ẽసᴗ≀㉁䛾⇕☢Ẽ≉ᛶ㻌㻹㼍㼓㼚㼑㼠㼛㼏㼍㼘㼛㼞㼕㼏㻌㼑㼒㼒㼑㼏㼠㻌㼛㼒㻌㼍㼠㼛㼙㼕㼦㼑㼐㻌㻾㼀㻞㻌㻔㼀㻦㻺㼕㻘㻭㼘㻕㻌㼏㼛㼙㼜㼛㼡㼚㼐㼟㻌㼒㼛㼞㻌㼔㼥㼐㼞㼛㼓㼑㼚㻌㼙㼍㼓㼚㼑㼠㼕㼏㻌㼞㼑㼒㼞㼕㼓㼑㼞㼍㼠㼛㼞㻌㻌すᮧ㻌 ඃ኱䠄㔠ἑ኱䠅䠈ᮅᮏ㻌 ᾏ䠄㔠ἑ኱䠅䠈ᮒ㻌 ஼ᐥ䠄㔠ἑ኱䠅䠈ᒣ⏣㻌 ၨᚿ䠄㔠ἑ኱䠅䠈ᯇᮏ㻌 ᏹ୍䠄㔠ἑ኱䠅䠗἟⃝㻌 ೺๎䠄㻺㻵㻹㻿䠅䠗㧗⏣㻌 ⿱❶䠈ධỤ㻌 ᖺ㞝䠄୕ᚨ䠅㻌NISHIMURA Yuta , ASAMOTO㻌 Kai , ZHU Yiyin , YAMADA Keishi , MATSUMOTO Koichi䠄Kanazawa Univ.䠅 ;NUMAZAWA Takenori(NIMS) ; TAKATA Hiroaki , IRIE Toshio(SANTOKU)
E-mail : n.yuuta@stu.kanazawa-u.ac.jp
㻝㻘㻌 䛿䛨䜑䛻㻌ㅰ㎡㻌

ᡃ䚻䛿 㻞㻜㻷 䛛䜙 㻣㻣㻷 䛾 ᗘ㡿ᇦ䛷☢Ẽ෭෾ᶵ䛾◊✲䜢⾜䛳ᮏ◊✲䛿᪂䜶䝛䝹䜼䞊䞉⏘ᴗᢏ⾡㛤Ⓨᶵᵓ䠄㻺㻱㻰㻻䠅䛛䜙䛾䛶䛔䜛䚹䛣䛾ጤク䛻䜘䜚䚸Ỉ⣲Ᏻ඲฼⏝➼㠉᪂ᢏ⾡䝥䝻䝆䜵䜽䝖䛾୍⎔䛸䛧ᗘ㡿ᇦ䛷䛿 㻾㼀㻞䠄㻾䠖ᕼᅵ㢮䠈㼀䠖㻭㼘䠈㻺㼕䠈㻯㼛䠅⣔䛾㔠ᒓ㛫໬ྜ≀䛜᭷ᮃ䛷䛒䜛䛸⪃䛘䛶䛔䜛䚹๓ᅇ䛿⇕஺᥮ຠ䛶ᐇ᪋䛥䜜䛯䚹㻌

⋡䜢ྥୖ䛥䛫䜛䛯䜑䛻⌫≧໬䛧䛯 㻳㼐㻺㼕㻞䠈㻰㼥㻭㼘㻞䠄㻲㼕㼓㻚㻝䠅䛾〇స㻌䛻䛴䛔䛶ሗ࿌䛧䛯䚹䜎䛯䚸☢໬ཧ⪃ᩥ⊩㻌ᐃ䛻䜘䜚䝞䝹䜽≧☢ᛶయ䛸ྠᵝ䛾≉ᛶ䛜ᚓ䜙䜜䛯䛣䛸䜢ሗ࿌䛧䛯㼇㻝㼉䚹㻌㻝㻚㻌㻷㻚㻌㻭㼟㼍㼙㼛㼠㼛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㻶㻌㻯㼛㼚㼒㼑㼞㼑㼚㼏㼑㻘㻌㼂㼛㼘㻚㻌㻤㻝㻌௒ᅇ䛿๓ᅇ䛻ᘬ䛝⥆䛝䚸㻳㼐㻺㼕㻞䠈㻰㼥㻭㼘㻞 䛾⌫≧໬䛧䛯☢ᛶయ䛻㻔㻞㻜㻜㻥㻕㻌㼜㻚㻞㻝㻠㻌䛴䛔䛶䚸☢ሙ୰䛷䛾ẚ⇕䜢ᐃ䛧䛭䛾䜶䞁䝖䝻䝢䞊䜢ホ౯䛧䛯䚹䜎䛯䚸᪂䛯䛻 㻴㼛㻭㼘㻞 䛾⌫≧໬ヨᩱ䜒సᡂ䛧䛯䛾䛷䛭䛾⇕☢Ẽ≉ᛶ䛾⤖ᯝ䜒ሗ࿌䛩䜛䚹㻌㻌㻞㻘㻌 ☢໬ ᐃ㻌㐲ᚰ㗪㐀ἲ䛻䜘䜚⌫≧໬䛧䛯 㻴㼛㻭㼘㻞 䛾☢໬ᐃ䜢 㻽㼡㼍㼚㼠㼡㼙㻌㻰㼑㼟㼕㼓㼚 ♫䛾 㻹㻼㻹㻿䠄☢Ẽ≉ᛶ ᐃ䝅䝇䝔䝮䠅䜢⏝䛔䛶⾜䛳䛯䚹㻌☢໬䛾ᗘ౫Ꮡᛶ䛿ᡃ䚻䛜ᐃ䛧䛯 㻴㼛㻭㼘㻞 䛾◚○ᮦ䛸䜘䛟୍㻌⮴䛧䛶䛔䜛䛣䛸䛛䜙Ⰻ㉁䛺≀㉁䛜ྜᡂ䛷䛝䛯䛸⪃䛘䜙䜜䛯䚹㻌㻌㻲㼕㼓㻚㻌㻝㻚㻌㻰㼥㻭㼘䠎㻌 㼜㼍㼞㼠㼕㼏㼘㼑㼟㻌 㻌㻟㻘㻌 ẚ⇕ ᐃ㻌60⦆࿴ἲ䛻䜘䜚䚸☢ሙ 㻜䡚㻡㼀 䛻䛚䛔䛶䚸㻳㼐㻺㼕㻞㻌 㻘㻌 㻰㼥㻭㼘㻞 䛾☢ሙ୰ᐃ䜢 㻽㼡㼍㼚㼠㼡㼙㻌 㻰㼑㼟㼕㼓㼚 ♫䛾 㻼㻼㻹㻿䠄≀⌮ⓗ≉ᛶᐃ䝅䝇䝔䝮䠅䜢⏝䛔䛶⾜䛳䛯䚹☢ሙ୰ẚ⇕䛛䜙䚸☢ᛶయ䛾䜶䞁䝖䝻䝢䞊䜢ồ䜑䛯䚹㻲㼕㼓㻚㻞 䛻䛿 㻰㼥㻭㼘䠎䛾䜶䞁䝖䝻䝢䞊䛾 ᗘ౫Ꮡᛶ䜢☢ሙ䜢䝟䝷䝯䞊䝍䞊䛸䛧䛶♧䛩䚹㌿⛣Ⅼ㏆ഐ䛷኱䛝䛺䜶䞁䝖䝻䝢䞊ኚ໬䛜ᚓ䜙䜜䛶䛔䜛䚹䜶䞁䝖䝻䝢䞊ኚ໬䛾್䛿☢໬ᐃ䛛䜙ồ䜑䛯್䛸䜘䛟୍⮴䛧䛶䛔䛯䚹㻌௒ᅇồ䜑䜙䜜䛯䜶䞁䝖䝻䝢䞊≉ᛶ䛿䚸෭෾ᶵ䛷⾜䜟䜜䜛෭෾ヨ㦂䛾ゎᯒ䜔䝅䝭䝳䝺䞊䝅䝵䞁䛻䜘䜛䝃䜲䜽䝹ゎᯒ䜢⾜䛖䛸䛝䛾☢ᛶయᇶ♏䝕䞊䝍䛸䛧䛶౑⏝䛩䜛ணᐃ䛷䛒䜛䚹㻌

50

Entropy [J/molK]

ẚ⇕

40
30

0T
1T

20

3T
10
0

5T

0

20

40

60

80

100

120

Temperature [K]㻌㻲㼕㼓㻚㻞㻚㻌 䠡㼚㼠㼞㼛㼜㼥㻌㼛㼒㻌㻰㼥㻭㼘䠎㻌 㼕㼚㻌㻜㻘㻌㻝㻘㻌㻟㻘㻌㼍㼚㼐㻌㻡㼀㻌― 49 ―

第83回

2010年度秋季低温工学・超電導学会

1C-a04

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እ㒊䜺䝇㥑ືᘧ 㻭㻹㻾 Ỉ⣲☢Ẽ෭෾⿦⨨䛾㛤Ⓨ㻌㻰㼑㼢㼑㼘㼛㼜㼙㼑㼚㼠㻌㼛㼒㻌㻭㻹㻾㻌㼔㼥㼐㼞㼛㼓㼑㼚㻌㼙㼍㼓㼚㼑㼠㼕㼏㻌㼞㼑㼒㼞㼕㼓㼑㼞㼍㼠㼕㼛㼚㻌㼑㼝㼡㼕㼜㼙㼑㼚㼠㻌㼎㼥㻌㼑㼤㼠㼑㼞㼚㼍㼘㻌㼓㼍㼟㻌㼐㼞㼕㼢㼑㼚᭹㒊㻌 ⱥஅ㻘ᖹ㔝㻌 㞝኱㻘⋤㻌 㭉㻘ᮤ㻌 ᬗ㻔㻺㻵㻹㻿䞉༓ⴥ኱㻕㻌 ୰㎸㻌 ⚽ᶞ㻔༓ⴥ኱㻕㻌 ᮅᮏ㻌 ᾏ㻘ᯇᮏ㻌 ᏹ୍㻔㔠ἑ኱㻕㻌 ἟⃝㻌 ೺๎㻔㻺㻵㻹㻿㻕㻴㻭㼀㼀㻻㻾㻵㻌㻴㼕㼐㼑㼥㼡㼗㼕㻘㻌 㻴㻵㻾㻭㻺㻻㻌㼅㼡㼠㼍㻘㻌 㼃㻭㻺㻳㻌㻼㼑㼚㼓㻘㻌 㻸㻵㻌㻶㼕㼚㼓㻔㻺㻵㻹㻿䞉㼀㼕㼎㼍㻚㼁㻕㻘㻌 㻺㻭㻷㻭㻳㻻㻹㻱㻌㻴㼕㼐㼑㼗㼕㻌㻔㼀㼕㼎㼍㻚㼁㻕㻌㻭㻿㻭㻹㻻㼀㻻㻌㻷㼍㼕㻘㻌㻹㻭㼀㼁㻹㻻㼀㻻㻌㻷㼛㼡㼕㼠㼕㻌㻔㻷㼍㼚㼍㼦㼍㼣㼍㻚㼁㻕㻌㻺㼁㻹㻭㼆㻭㼃㻭㻌㼀㼍㼗㼑㼚㼛㼞㼕㻌㻔㻺㻵㻹㻿㻕㻌㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻱㻙㼙㼍㼕㼘㻦㼏㼎㻠㻜㻜㼟㼒㼋㼢㼠㼑㼏㻬㼔㼛㼠㼙㼍㼕㼘㻚㼏㼛㻚㼖㼜䠍䠊䛿䛨䜑䛻㻌
Ỉ⣲䛾㍺㏦䞉㈓ⶶ䞉౪⤥ᙧែ䜢⪃䛘䜛䛸䛝䚸䜶䝛䝹䜼䞊ᐦᗘ䛾㧗䛔ᾮయỈ⣲䛿䛝䜟䜑䛶᭷⏝䛷䛒䜛䛜䚸ᾮ໬䜢䛩䜛㝿䛾Ỉ⣲䛾ᾮ໬ ᗘ䛿㻙㻞㻡㻟䉝㻔㻞㻜㻷㻕䛸ᴟప䛷䛒䜛䛣䛸䛛䜙䚸ᡤᐃ䛾ᾮ໬௙஦䜢せ䛩䜛䚹䜘䛳䛶䚸Ỉ⣲䛾ᾮ໬䛻䛿䜽䝸䞊䞁䛛䛴㧗ຠ⋡䛺෭෾ᢏ⾡䛜ᚲ㡲䛸䛺䛳䛶䛚䜚䚸ḟୡ௦䛾෭෾ᢏ⾡䛸䛧䛶䛄☢Ẽ෭෾ᢏ⾡䛅䛜ὀ┠䛥䜜䛶䛔䜛䚹䛭䛣䛷ᡃ䚻䛿☢Ẽ෭෾䛻䜘䜛䜶䝛䝹䜼䞊ຠ⋡䛾㧗䛔Ỉ⣲ᾮ໬䞉㈓ⶶ䛻㛵䛩䜛ᇶ┙ᢏ⾡䛾☜❧䜢┠ⓗ䛸䛧䛶䛚䜚䚸ᮏ◊✲䛿㧗ຠ⋡䛺Ỉ⣲ᾮ໬䛾ᐇ⌧䜢┠ᣦ䛧䚸Ỉ⣲ᾮ໬⏝☢Ẽ௨ୖ䛾䝃䜲䜽䝹䜢㐃⥆䛷⾜䛔ୖ㒊䛻㧗 ➃䚸ୗ㒊䛻ప➃䜢ᙧᡂ䛧䚸㧗

➃䛷᤼⇕సᴗ䜢⾜䛔䚸ప➃䛻䛶෭෾సᴗ⾜䛺䛖䛾䛜 㻭㻹㻾 䝃䜲䜽䝹䛾≉ᚩ䛷䛒䜛䚹㻌䜎䛯䚸௒ᅇ䛾ᐇ㦂⿦⨨䛿እ㒊䜺䝇㥑ືᘧ䜢᥇⏝䛧䛶䛚䜚䚸௨๓䛾⿦⨨䛷⏝䛔䛶䛔䛯ෆ㒊䜺䝇㥑ືᘧ䛸ẚ䜉௨ୗ䛾≉ᚩ䜢᭷䛩䚹ୗ䛾ᅗ䛿ྛ㥑ື᪉ᘧ䛾ᴫᛕᅗ䛷䛒䜛䚹㻌䞉ᑠཱྀᚄ䛾㉸㟁ᑟ䝬䜾䝛䝑䝖䛾᥇⏝㻌䞉྾⇕䚸᤼⇕㒊䛾ศ㞳䛻䜘䜛⇕஺᥮ຠ⋡䛾ྥୖ㻌䞉⇕౵ධ䛾పῶ໬㻌෭෾⿦⨨䛾ヨస䛸᳨ド䜢⾜䛳䛯䚹㻌䠎䠊ᐇ㦂⿦⨨㻌䛣䜜䜎䛷䛻㛤Ⓨ䛧䛯Ỉ⣲ᾮ໬⏝☢Ẽ෭෾ᶵ䛿䚸㧗ຠ⋡䛾䜹䝹䝜䞊䝃䜲䜽䝹ᆺᐇ㦂ᶵ䛷䛒䜚䚸Ỉ⣲䛾ᾮ໬䛾䜏䛻↔
Ⅼ䜢ᙜ䛶䛶䛔䜛䛯䜑෭෾ ᗘ⠊ᅖ䛿䚸Ỉ⣲ᾮ໬ ᗘ௜㏆䛾⊃䛔ᗘ⠊ᅖ䛾෭෾䜢┠ⓗ䛸䛧䛶䛔䛯䚹䜹䝹䝜䞊䝃䜲䜽䝹䛿㧗ຠ⋡䛺䝃䜲䜽䝹䛷䛒䜛䛜䚸ᗈ䛔ᗘᖜ䜢ྲྀ䜛䛣䛸䛿
㻲㼕㼓㻚㻞㻌 㻌 㻸㻦 㼕㼚㼠㼑㼞㼚㼍㼘㻌㼓㼍㼟㻌㼐㼞㼕㼢㼑㼚㻌 㻌 㻾㻦 㼑㼤㼠㼑㼞㼚㼍㼘㻌㼓㼍㼟㻌㼐㼞㼕㼢㼑㼚㻌ᅔ㞴䛷䛒䜚䚸ᮏᐇ㦂䛷䛿䜹䝹䝜䞊䝃䜲䜽䝹䛻᭰䜟䜚ᗈ䛔ᗘ ᖜ 䜢 ᐇ ⌧ 䛷 䛝 䜛 ⬟ ື ⓗ ⵳ ෭ ᆺ ☢ Ẽ ෭ ෾ ἲ 㻭㼏㼠㼕㼢㼑㻌㻹㼍㼓㼚㼑㼠㼕㼏㻌㻾㼑㼓㼑㼚㼑㼞㼍㼠㼛㼞㻌㻔㻭㻹㻾㻕㻌 䜢᥇⏝䛧䛯䚹㻌䠝䠩䠮䝃䜲䜽䝹䛿䚸☢ሙኚ໬䛻䜘䜛☢ᛶయ䛾☢Ẽ⇕㔞ຠᯝ䛸☢ᛶయ䛾⵳෭ຠᯝ䚸䛭䛧䛶䚸☢ᛶయ䝩䝹䝎䞊ෆ䜢⛣ື䛩䜛⇕஺᥮䜺䝇䛻䜘䜛⇕㍺㏦䛛䜙ᡂ䜚❧䛴䝃䜲䜽䝹䛷䛒䜛䚹㻭㻹㻾 䝃䜲䜽䝹䜢 㻲㼕㼓㻚㻝 䛻♧䛩䚹㻌ࡲࡓࡇࢀ࡟ࡼࡾࠊෆ㒊࢞ࢫ㥑ືᘧ࡛ࡣᅔ㞴ࡔࡗࡓ᤼⇕࡜྾⇕㒊ࡢ⇕㔞 ᐃࢆࠊ௒ᅇࡢእ㒊࢞ࢫ㥑ືᘧᐇ㦂⿦⨨࡛ࡣࠊ྾⇕㒊࡜᤼⇕㒊ࢆ⊂❧ࡋ࡚タࡅࡓࡇ࡜࡟ࡼࡾྍ⬟࡜ࡋ࡚࠸ࡿࠋ
䠏䠊ᐇ㦂᪉ἲ㻌㻰㼕㼟㼜㼘㼍㼏㼑㼞 ෆ䛻⇕஺᥮䜺䝇䠄㻴㼑䠅䜢‶䛯䛧䚸㻭㻹㻾㻌 㻮㼑㼠 䛻☢
ᛶయ䜢඘ሸ䛩䜛䚹䝬䜾䝛䝑䝖䛛䜙☢ሙ䜢༳ຍ䛧䜰䜽䝏䜵䞊䝍䞊䜢ືస䛥䛫 㻭㻹㻾 㐠㌿䜢㛤ጞ䛩䜛䚹㻭㻹㻾㻌 㻮㼑㼠 䛾ୗ㒊䛸ୖ㒊䚸྾⇕㒊䞉᤼⇕㒊䛻ྛ ᗘィ䜢㓄䛧 㻭㻹㻾 䝃䜲䜽䝹䜢㥑ື䛥䛫䛯᫬䛾 ᗘኚ໬䜢 ᐃ䛩䜛䚹䜎䛯 㻭㻹㻾 䝃䜲䜽䝹䛜Ỉ⣲ண෭㡿ᇦ㻔㻞㻞㻷䡚㻣㻣㻷㻕䛷㥑ືྍ⬟䛛䛹䛖䛛᳨ド䛩䜛䚹㻌䠐䠊䜎䛸䜑㻌
Ỉ⣲☢Ẽ෭෾⿦⨨䛻㛵䛩䜛䛣䜜䜎䛷䛾◊✲ᡂᯝ䜢⥅ᢎ㻲㼕㼓㻚㻝㻌㻯㼛㼚㼏㼑㼜㼠㼡㼍㼘㻌㼐㼕㼍㼓㼞㼍㼙㻌㼛㼒㻌㻭㻹㻾㻌㼏㼥㼏㼘㼑㻌 㻌㼎㼥㻌㼑㼤㼠㼑㼞㼚㼍㼘㻌㼓㼍㼟㻌㼐㼞㼕㼢㼕㼚㼓㻌䛧䚸௨๓䛾ᐇ㦂⿦⨨䜢ᇶ䛻䚸እ㒊䜺䝇㥑ືᘧ 㻭㻹㻾 Ỉ⣲☢
Ẽ෭෾⿦⨨䛾㛤Ⓨ䜢⾜䛳䛯䚹㻌ㅰ㎡㻌 ᮏ◊✲䛿᪂䜶䝛䝹䜼䞊䞉⏘ᴗᢏ⾡㛤Ⓨᶵᵓ㻔㻺㻱㻰㻻㻕䐟☢໬䠖☢໬䛩䜛䛣䛸䛻䜘䜚☢ᛶయ䛾 ᗘ䛜ୖ᪼㻌䛾ጤク䛻䜘䜛ỈỈ⣲〇㐀䞉㍺㏦䞉㈓ⶶ䝅䝇䝔䝮➼ᢏ⾡㛤Ⓨ䐠ᨺ⇕䠖㻰㼕㼟㼜㼘㼍㼏㼑㼞 䜘䜚⇕஺᥮䜺䝇䜢ὶ䛧᤼⇕䜢⾜䛖㻌䝥䝻䝆䜵䜽䝖䛻䜘䜚䚸≀㉁䞉ᮦᩱ◊✲ᶵᵓ㻔㻺㻵㻹㻿㻕䛻䛚䛔䛶◊䐡ᾘ☢䠖ᾘ☢䛩䜛䛣䛸䛻䜘䜚☢ᛶయ䛾 ᗘ䛜ῶᑡ㻌✲䜢ᐇ᪋䛧䛶䛔䜛䚹㻌䐢྾⇕䠖㻰㼕㼟㼜㼘㼍㼏㼑㼞 䜘䜚⇕஺᥮䜺䝇䜢ὶ䛧྾⇕䜢⾜䛖㻌― 50 ―

第83回

2010年度秋季低温工学・超電導学会

1C-a05

磁気冷凍機☢Ẽ෭෾ᶵ䛾෌⏕ჾᗄఱ䛾䝰䝕䝸䞁䜾㻌㻭㻌㻹㼛㼐㼑㼘㼕㼚㼓㻌㼟㼠㼡㼐㼥㻌㼛㼚㻌㼠㼔㼑㻌㻳㼑㼛㼙㼑㼠㼞㼥㻌㼛㼒㻌㻭㼏㼠㼕㼢㼑㻌㻹㼍㼓㼚㼑㼠㼕㼏㻌㻾㼑㼓㼑㼚㼑㼞㼍㼠㼛㼞㻌㻌ᮤ㻌 ᬗ㻘㻌 ἟⃝㻌 ೺๎䠄㻺㻵㻹㻿䠅䠗ᯇᮏ㻌 ᏹ୍㻔㔠ἑ኱Ꮫ㻕䠗୰㎸㻌 ⚽ᶞ䠄༓ⴥ኱Ꮫ䠅㻌㻸㻵㻌㻶㼕㼚㼓㻘㻌㻺㼁㻹㻭㼆㻭㼃㻭㻌㼀㼍㼗㼑㼚㼛㼞㼕㻌㻔㻺㻵㻹㻿㻕㻧㻌㻹㻭㼀㻿㼁㻹㻻㼀㻻㻌 㻷㼛㼕㼏㼔㼕㻌㻔㼗㼍㼚㼍㼦㼍㼣㼍㻌㼁㼚㼕㼢㼑㼞㼟㼕㼠㼥㻕㻧㻌 㻌㻺㻭㻷㻭㻳㻻㻹㻱㻌㻴㼕㼐㼑㼗㼕㻌㻔㻯㼔㼕㼎㼍㻌㼁㼚㼕㼢㼑㼞㼟㼕㼠㼥㻕㻌 㻌㻱㻙㼙㼍㼕㼘㻦㻌㼟㼕㼠㼍㻝㻥㻬㼓㼙㼍㼕㼘㻚㼏㼛㼙㻌㻝䠊㻵㼚㼠㼞㼛㼐㼡㼏㼠㼕㼛㼚㻌㻹㼍㼓㼚㼑㼠㼕㼏㻌㼞㼑㼒㼞㼕㼓㼑㼞㼍㼠㼕㼛㼚㻌㼠㼑㼏㼔㼚㼛㼘㼛㼓㼥㻌㼚㼑㼑㼐㼟㻌㼒㼡㼞㼠㼔㼑㼞㻌㼐㼑㼢㼑㼘㼛㼜㼙㼑㼚㼠㻌㼚㼛㼠㻌㼖㼡㼟㼠㻌㼎㼥㻌㼠㼔㼑㻌㼕㼙㼜㼞㼛㼢㼑㼙㼑㼚㼠㻌㼛㼒㻌㼙㼍㼓㼚㼑㼠㼛㼏㼍㼘㼛㼞㼕㼏㻌㼜㼞㼛㼜㼑㼞㼠㼕㼑㼟㻌㼎㼡㼠㻌㼍㼘㼟㼛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㼏㼛㼛㼘㼕㼚㼓㻌㼟㼥㼟㼠㼑㼙㻌㼐㼑㼟㼕㼓㼚㻚㻌㻻㼚㼑㻌㼛㼒㻌㼠㼔㼑㻌㼕㼙㼜㼛㼞㼠㼍㼚㼠㻌 㼜㼞㼛㼎㼘㼑㼙㼟㻌 㼕㼚㻌 㼠㼔㼑㻌 㼏㼛㼛㼘㼕㼚㼓㻌 㼟㼥㼟㼠㼑㼙㻌 㼐㼑㼟㼕㼓㼚㻌 㼕㼟㻌 㼠㼔㼑㻌㼞㼑㼓㼑㼚㼑㼞㼍㼠㼛㼞㻌㼓㼑㼛㼙㼑㼠㼞㼥㻌㼒㼛㼞㻌㼠㼔㼑㻌㼑㼒㼒㼕㼏㼕㼑㼚㼏㼥㻌㼔㼑㼍㼠㻌㼠㼞㼍㼚㼟㼒㼑㼞㻌㼎㼑㼠㼣㼑㼑㼚㻌㼙㼍㼓㼚㼑㼠㼕㼏㻌㼙㼍㼠㼑㼞㼕㼍㼘㻌㼍㼚㼐㻌㼒㼘㼡㼕㼐㻌㼣㼔㼕㼏㼔㻌㼕㼟㻌㼠㼔㼑㻌㼙㼍㼖㼛㼞㻌㼘㼛㼟㼟㻌㼙㼑㼏㼔㼍㼚㼕㼟㼙㻌㼕㼚㻌㼏㼛㼛㼘㼕㼚㼓㻌㼟㼥㼟㼠㼑㼙㻚㻌㼀㼣㼛㻌㼗㼕㼚㼐㼟㻌㼛㼒㻌㼞㼑㼓㼑㼚㼑㼞㼍㼠㼛㼞㼟㻌㼍㼞㼑㻌㼣㼕㼐㼑㼘㼥㻌㼡㼟㼑㼐㻚㻌㻻㼚㼑㻌㼕㼟㻌㼜㼍㼞㼍㼘㼘㼑㼘㻙㼜㼘㼍㼠㼑㻌㼞㼑㼓㼑㼚㼑㼞㼍㼠㼛㼞㻌㼣㼔㼕㼏㼔㻌㼏㼍㼚㻌㼛㼒㼒㼑㼞㻌㼠㼔㼑㻌㼎㼑㼟㼠㻌㼔㼑㼍㼠㻌㼠㼞㼍㼚㼟㼒㼑㼞㻌 㼠㼛㻌 㼜㼞㼑㼟㼟㼡㼞㼑㻌 㼐㼞㼛㼜㻌 㼞㼍㼠㼕㼛㻌 㻔㻿㼍㼞㼘㼍㼚㻘㻌 㻞㻜㻜㻤㻕㻌 㼒㼛㼞㻌 㼏㼛㼙㼙㼛㼚㻌㼞㼑㼓㼑㼚㼑㼞㼍㼠㼛㼞㻌 㼐㼑㼟㼕㼓㼚㻧㻌 㼍㼚㼛㼠㼔㼑㼞㻌 㼕㼟㻌 㼜㼛㼞㼛㼡㼟㻌 㼙㼑㼐㼕㼍㻌 㼞㼑㼓㼑㼚㼑㼞㼍㼠㼛㼞㻌㼣㼔㼕㼏㼔㻌 㼏㼍㼚㻌 㼛㼎㼠㼍㼕㼚㻌 㼍㻌 㼘㼍㼞㼓㼑㻌 㼠㼑㼙㼜㼑㼞㼍㼠㼡㼞㼑㻌 㼟㼜㼍㼚㻌 㼑㼤㼜㼑㼞㼕㼙㼑㼚㼠㼑㼐㻌 㼎㼥㻌㼘㼛㼠㼟㻌 㼛㼒㻌 㼓㼞㼛㼡㼜㼟㻌 㼟㼡㼏㼔㻌 㼍㼟㻌 㼀㼛㼟㼔㼕㼎㼍㻚㻌 㻮㼡㼠㻌 㼡㼚㼠㼕㼘㻌 㼚㼛㼣㻘㻌 㼛㼚㼘㼥㻌 㼍㻌 㼒㼑㼣㻌㼞㼑㼟㼑㼍㼞㼏㼔㻌㼜㼍㼜㼑㼞㼟㻌㼍㼏㼠㼡㼍㼘㼘㼥㻌㼟㼠㼡㼐㼥㻌㼛㼚㻌㼠㼔㼑㻌㼞㼑㼓㼑㼚㼑㼞㼍㼠㼛㼞㻌㼓㼑㼛㼙㼑㼠㼞㼥㻚㻌㼀㼔㼕㼟㻌㼜㼍㼜㼑㼞㻌㼕㼟㻌㼒㼛㼏㼡㼟㻌㼛㼚㻌㼠㼔㼑㻌㼕㼚㼒㼘㼡㼑㼚㼏㼑㻌㼛㼒㻌㼞㼑㼓㼑㼚㼑㼞㼍㼠㼛㼞㻌㼓㼑㼛㼙㼑㼠㼞㼥㻌㼠㼛㻌㼠㼔㼑㻌㼜㼑㼞㼒㼛㼞㼙㼍㼚㼏㼑㻌㼛㼒㻌㻭㻹㻾㼟㻚㻌㼀㼣㼛㻌㼗㼕㼚㼐㼟㻌㼛㼒㻌㼙㼛㼐㼑㼘㼟㻌㼔㼍㼢㼑㻌㼎㼑㼑㼚㻌㼏㼛㼚㼟㼠㼞㼡㼏㼠㼑㼐㻌 㼍㼚㼐㻌 㼏㼛㼙㼜㼍㼞㼑㼐㻌 㼣㼕㼠㼔㻌 㼢㼑㼘㼛㼏㼕㼠㼥㻌 㼒㼕㼑㼘㼐㻘㻌㼜㼞㼑㼟㼟㼡㼞㼑㻌 㼘㼛㼟㼟㻘㻌㼔㼑㼍㼠㻌㼠㼞㼍㼚㼟㼒㼑㼞㻌㼞㼍㼠㼑㻘㻌㼏㼛㼛㼘㼕㼚㼓㻌㼏㼍㼜㼍㼏㼕㼠㼥㻚㻌㼀㼔㼑㻌㼓㼛㼍㼘㻌㼛㼒㻌㼠㼔㼕㼟㻌㼟㼠㼡㼐㼥㻌㼕㼟㻌㼠㼛㻌㼜㼞㼛㼢㼕㼐㼑㻌㼍㻌㼟㼡㼓㼓㼑㼟㼠㼑㼐㻌㼓㼑㼛㼙㼑㼠㼞㼥㻌㼒㼛㼞㻌㼍㻌㼜㼞㼛㼠㼛㼠㼥㼜㼑㻌㻭㻹㻾㻚㻌㻞䠊㻹㼛㼐㼑㼘㻌
㻔㻝㻕㻌㻹㼛㼐㼑㼘㻌㼍㼟㼟㼡㼙㼜㼠㼕㼛㼚㻌㼀㼣㼛㻙㼐㼕㼙㼑㼚㼟㼕㼛㼚㼍㼘㻌 㼙㼛㼐㼑㼘㼟㻌 㼔㼍㼢㼑㻌 㼎㼑㼑㼚㻌 㼏㼛㼚㼟㼠㼞㼡㼏㼠㼑㼐㻌 㼎㼍㼟㼑㼐㻌 㼛㼚㻌㼘㼍㼙㼕㼚㼍㼞㻌 㼒㼘㼛㼣㻌 㼍㼟㼟㼡㼙㼜㼠㼕㼛㼚㻚㻌 㻹㻯㻱㻌 㼕㼟㻌 㼠㼍㼗㼑㼚㻌 㼕㼚㼠㼛㻌 㼍㼏㼏㼛㼡㼚㼠㻌 㼎㼥㻌 㼠㼔㼑㻌㼕㼚㼏㼘㼡㼟㼕㼛㼚㻌 㼛㼒㻌 㼍㻌 㼟㼛㼡㼞㼏㼑㻌 㼠㼑㼞㼙㻌 㼕㼚㻌 㼠㼔㼑㻌 㼑㼚㼑㼞㼓㼥㻌 㼑㼝㼡㼍㼠㼕㼛㼚㻌 㼒㼛㼞㻌 㼠㼔㼑㻌㼙㼍㼓㼚㼑㼠㼕㼏㻌 㼙㼍㼠㼑㼞㼕㼍㼘㻚㻌 㼀㼔㼑㻌 㼍㼐㼕㼍㼎㼍㼠㼕㼏㻌 㼠㼑㼙㼜㼑㼞㼍㼠㼡㼞㼑㻌 㼏㼔㼍㼚㼓㼑㻌 㼛㼒㻌 㼠㼔㼑㻌㼡㼟㼑㼐㻌㼙㼍㼓㼚㼑㼠㼕㼏㻌㼙㼍㼠㼑㼞㼕㼍㼘㻌㼕㼟㻌㼡㼟㼑㼐㻌㼍㼟㻌㼍㻌㼙㼑㼍㼚㻌㼒㼕㼑㼘㼐㻌㻹㻯㻱㻚㻌
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第83回

2010年度秋季低温工学・超電導学会

1C-a06

磁気冷凍機

ᐊ☢Ẽ෭෾䛾෭෾≉ᛶゎᯒ㻌㻭㼚㼍㼘㼥㼟㼕㼟㻌㼛㼚㻌㻭㻹㻾㻌㼞㼑㼒㼞㼕㼓㼑㼞㼍㼠㼕㼛㼚㻌㼍㼠㻌㼞㼛㼛㼙㻌㼠㼑㼙㼜㼑㼞㼍㼠㼡㼞㼑㻌ᆏᮏ ᾈᓫ䠈㛛㛫 ኱㍜㻘 ෆᮏ ┿ྖ䠈 ኴ⏣໷๎୰㎸ ⚽ᶞ䠄༓ⴥ኱䠅㻧ᑠᯘ ᛅᙪ䠈ຍ἞ ᚿ⧊䠈㰻⸨ ᫂Ꮚ䠄ᮾⰪ䠅㻌㻿㻭㻷㻭㻹㻻㼀㻻㻌㻴㼕㼞㼛㼠㼍㼗㼍䠈㻌 㻹㻻㻺㻹㻭㻌㻰㼍㼕㼟㼡㼗㼑㻘㻌㼁㻯㻴㻵㻹㻻㼀㻻㻌㻿㼔㼕㼚㼖㼕㻘㻌㻻㼀㻭㻌㻹㼍㼟㼍㼚㼛㼞㼕㻘㻌㻺㻭㻷㻭㻳㻻㻹㻱㻌㻴㼕㼐㼑㼗㼕㻌㻔㻯㼔㼕㼎㼍㻌㼁㼚㼕㼢㼑㼞㼟㼕㼠㼥㻕㻌㻧㻷㻻㻮㻭㼅㻭㻿㻴㻵㻌㼀㼍㼐㼍㼔㼕㼗㼛㻘㻌㻷㻭㻶㻵㻌㻿㼔㼕㼛㼞㼕㻘㻌㻿㻭㻵㼀㻻㻌㻭㼗㼕㼗㼛㻌㻔㼀㼛㼟㼔㼕㼎㼍㻕㻌㻱㻙㼙㼍㼕㼘㻦㻌㼟㼍㼗㼍㼙㼛㼠㼛㻬㼓㼞㼍㼐㼡㼍㼠㼑㻚㼏㼔㼕㼎㼍㻙㼡㻚㼖㼜㻌 㻌
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― 52 ―

第83回

2010年度秋季低温工学・超電導学会

1C-a07

磁気冷凍機

඲࿘᪉ྥ䛻䝎䜽䝖䜢㓄⨨䛧䛯ᐊ☢Ẽ෭෾ᶵ䛾㧗࿘Ἴ㐠㌿᫬䛻䛚䛡䜛ᛶ⬟ホ౯㻌㻼㼑㼞㼒㼛㼞㼙㼍㼚㼏㼑㻌㼑㼢㼍㼘㼡㼍㼠㼕㼛㼚㻌㼛㼒㻌㼍㻌㼞㼛㼛㼙㻌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㼚㼐㼑㼞㻌㼔㼕㼓㼔㻙㼒㼞㼑㼝㼡㼑㼚㼏㼥㻌㼛㼜㼑㼞㼍㼠㼕㼛㼚㻌㼣㼕㼠㼔㻌㼍㼘㼘㻌㼏㼕㼞㼏㼡㼙㼒㼑㼞㼑㼚㼠㼕㼍㼘㼘㼥㻌㼕㼚㼟㼠㼍㼘㼘㼑㼐㻌㼐㼡㼏㼠㼟㻌㻌࿴⏣㻌 ⠜ྐ䠈ୗᆅ㻌 ᓫ䠈ᒸᮧ㻌 ဴ⮳䠄ᮾᕤ኱䠅䠗ᖹ㔝㻌 ┤ᶞ䠈㛗ᒇ㻌 㔜ኵ䠄୰㒊㟁ຊ䠅䠗ఀ⸨㻌 Ꮥ἞䠄ⶶ⋤⢭ᶵ䠅㻌㼃㻭㻰㻭㻌㻭㼠㼟㼡㼟㼔㼕䠈㻿㻴㻵㻹㻻㻶㻵㻌㼀㼍㼗㼍㼟㼔㼕䠈㻻㻷㻭㻹㼁㻾㻭㻌㼀㼑㼠㼟㼡㼖㼕㻔㼀㼛㼗㼥㼛㻌㼀㼑㼏㼔㻕䠗㻌㻴㻵㻾㻭㻺㻻㻌㻺㼍㼛㼗㼕䠈㻺㻭㻳㻭㼅㻭㻌㻿㼔㼕㼓㼑㼛㻌㻔㻯㼔㼡㼎㼡㻌㻱㼘㼑㼏㼠㼞㼕㼏㻌㻼㼛㼣㼑㼞㻌㻯㼛㻚㻕䠗㻵㼀㻻㻌㻷㼛㼡㼖㼕䠄㼆㼍㼛㼡㼟㼑㼕㼗㼕㻌㻯㼛㻚䠅㻌㻱㻙㼙㼍㼕㼘㻦㻌㼣㼍㼐㼍㻚㼍㻚㼍㼎㻬㼙㻚㼠㼕㼠㼑㼏㼔㻚㼍㼏㻚㼖㼜䠈㼠㼛㼗㼍㼙㼡㼞㼍㻬㼑㼟㻚㼠㼕㼠㼑㼏㼔㻚㼍㼏㻚㼖㼜㻌䛭䛾⤖ᯝ䠈඲࿘㓄⨨ᆺᐊ ☢Ẽ෭෾ᶵࡣᾘ㈝㟁ຊࡢᢚไ࡟ࡼࡾ㧗ຠ⋡໬ࡀᮇᚅ࡛ࡁࡿࡇ࡜ࡀࢃ࠿ࡗࡓ㸬ࡲࡓ㸪せồࡉࢀࡿືస ᗘ⠊ᅖࡸ෭෾ᛶ⬟࡟ྜࢃࡏ࡚඘ሸᒙ㛗ࡉࢆ᭱㐺໬ࡍࡿࡇ࡜࡟ࡼࡾࢥࢫࢺホ౯ࡀ⾜࠼ࡿࡇ࡜ࢆ☜ㄆࡋࡓ㸬㻌

Cooling capacity [W]

180
150
120

1.2
Apparatus with all circumferentially installed duct
Conventional apparatus

1

TH=23ΥࠉTL=16Υ
Flow rate=10L/min

0.8

90

0.6

60

0.4

30

0.2

0
0

0.5
1
1.5
2
2.5
3
Frequency of magnetic field change [Hz]03.5

Coefficient of performance [-]㻲㼕㼓㻚㻌㻝㻌 㻌 㻯㼛㼙㼜㼍㼞㼕㼟㼛㼚㻌㼛㼒㻌㼍㼜㼜㼍㼞㼍㼠㼡㼟㻌

㻌

300
250

― 53 ―

200

1.2
Cooling capacity
Coefficient of performance
TH=23ΥࠉTL=16Υ
Flow rate=10L/min
Frequency=1Hz

1
0.8

150

0.6

100

0.4

50

0.2

0
0

100
200
300
400
Packed bed length in duct [mm]0500Coefficient of performance [-]㻲㼕㼓㻚㻌㻞㻌 㻌 㻱㼒㼒㼑㼏㼠㻌㼛㼒㻌㼛㼜㼑㼞㼍㼠㼕㼛㼚㻌㼒㼞㼑㼝㼡㼑㼚㼏㼥㻌

Cooling capacity [W]㻌㻝䠊⥴ゝ㻌⌧ᅾ䠈ᆅ⌫ ᬮ໬䛾ほⅬ䛛䜙෭෾䞉✵ㄪᶵჾ䛾䝜䞁䝣䝻䞁໬䛜ồ䜑䜙䜜䛶䛚䜚䠈䛭䛾ゎỴ⟇䛾䠍䛴䛸䛧䛶ᐊ ☢Ẽ෭෾ᶵ䛜ᮇᚅ䛥䜜䛶䛔䜛䠊䛣䛾෭෾ᶵ䛿䠈㏆ᖺᅜෆእ䛷╔┠䛥䜜✚ᴟⓗ䛻◊✲䛜㐍䜣䛷䛔䜛䜒䛾䛾䠈ᐇ⏝໬䛻ྥ䛡䛶᭦䛺䜛෭෾⬟ຊ䛚䜘䜃ຠ⋡䛾ྥୖ䛜ᛴົ䛸䛺䛳䛶䛔䜛䠊ᮏ◊✲䛷䛿䠈䛣䜜䜎䛷 㻲㼕㼓㻚㻌 㻝 ᕥ䛻♧䛩☢ᛶᮦᩱ䜢඘ሸ䛧䛯䝎䜽䝖㻔㻭㼏㼠㼕㼢㼑㻌㻹㼍㼓㼚㼑㼠㼕㼏㻌㻾㼑㼓㼑㼚㼑㼞㼍㼠㼛㼞㻘㻌㻭㻹㻾㻌㼐㼡㼏㼠㻕䛜 㻥㻜㼻䛤䛸䛻㓄⨨䛥䜜䛯෭෾ᶵ䛻䛚䛔䛶ẚ㍑ⓗప࿘Ἴ䛷㐠㌿䜢⾜䛔䠈ᛶ⬟ホ౯䜢⾜䛳䛶䛝䛯䠊䛭䛾⤖ᯝ䠈෭෾ᛶ⬟ྥୖ䛻䛿༢఩᫬㛫ᙜ䛯䜚䛾ከ䛟䛾☢ሙኚ໬ᅇᩘ䛚䜘䜃☢ᛶᮦᩱ䛸෭፹㛫䛾ຠ⋡ⓗ䛺⇕஺᥮䛜ᚲせ䛷䛒䜛䛣䛸䛜䜟䛛䛳䛯䠊䛣䛾䛯䜑䠈㻲㼕㼓㻚㻌 㻝 ྑ䛻♧䛩㧗࿘Ἴ㐠㌿䛻㐺䛧䛯ᙧ≧䛷䛒䜛䠈䝎䜽䝖䜢࿘᪉ྥ䛻㝽㛫䛺䛟㓄⨨䛧䛯෭෾ᶵ䜢⪃᱌䛧䛯䠊䜘䛳䛶䠈඲࿘㓄⨨ᆺᐊ ☢Ẽ෭෾ᶵ䛾ᛶ⬟䛻䛴䛔䛶ᩘ್ィ⟬䜢⏝䛔䛶ホ౯䛧ሗ࿌䛩䜛䠊㻌㻌㻞䠊ᩘ್ィ⟬᪉ἲ㻌㻌 ⿦⨨䛿䠈☢ᛶᮦᩱ䛾 㻳㼐 䛜඘ሸ䛥䜜䛯䝎䜽䝖䠈☢ሙኚ໬䜢୚䛘䜛Ọஂ☢▼䠈☢▼䜢ᅇ㌿䛥䛫䜛䝰䞊䝍䛺䛹䛷ᵓᡂ䛥䜜䜛䠊䛣䛾䛯䜑䠈☢▼䛜ᅇ㌿䛩䜛㝿䛻ᑐゅ⥺ୖ䛾䝎䜽䝖䛻䛭䜜䛮䜜☢
ሙኚ໬䛜⏕䛨䜛ᵓ㐀䛻䛺䛳䛶䛔䜛䠊௒ᅇ䠈ᚑ᮶ᶵ䛿 㻲㼕㼓㻚㻌 㻝 ୗẁᕥ䛻♧䛩䜘䛖䛻ບ☢ഃ䞉ᾘ☢ഃ䜢 㻞 䝎䜽䝖䛪䛴䝟䝷䝺䝹᥋⥆䛧䠈඲࿘㓄⨨ᆺ⿦⨨䛿 㻲㼕㼓㻚㻌㻝 ୗẁྑ䛻♧䛩䜘䛖䛻 㻠 䝎䜽䝖䛪䛴䝟䝷䝺䝹᥋⥆䛩䜛䠊ィ⟬᮲௳䛿㧗 ➃ ᗘ 㼀㻴㻩㻞㻟䉝䠈ὶ㔞㻝㻜㻸㻛㼙㼕㼚 ୍ᐃ䛸䛧䛶 㻝 ḟඖ⇕ィ⟬䜢⾜䛳䛯䠊㻌㻌㻟䠊ィ⟬⤖ᯝ㻌ᚑ᮶ᆺ⿦⨨䛸඲࿘㓄⨨ᆺ⿦⨨䛾ᛶ⬟䜢ẚ㍑䛩䜛䛯䜑䠈㻲㼕㼓㻚㻌㻞 䛻䝎䜽䝖䜈䛾☢ሙኚ໬࿘Ἴᩘ䛸 ᗘᕪ䂴㼀㻩㻣䉝㻔ప ➃ ᗘ㼀㻸㻩㻝㻢䉝㻕䛻䛚䛡䜛෭෾⬟ຊ䛸ᡂ⦼ಀᩘ㻔㻯㻻㻼㻕䛾㛵ಀ䜢♧䛩䠊ᕥ㍈䛻♧䛩෭෾⬟ຊ㻔ᐇ⥺㻕䛿䠈ప࿘Ἴ㐠㌿᫬䛿ᚑ᮶ᆺ䛾᪉䛜㧗䛔್䜢♧䛧䠈㻞㻚㻡㻴㼦 ᫬䛻཮᪉䛸䜒䝢䞊䜽䜢ᚓ䛯䠊୍᪉䠈ྑ㍈䛻♧䛩ᡂ⦼ಀᩘ㻔◚⥺㻕䛻䛴䛔䛶䛿䠈඲࿘㓄⨨ᆺ䛾᪉䛜☢
▼䜢ᅇ㌿䛥䛫䜛䛯䜑䛾䝖䝹䜽䛜పῶ䛧䠈⤖ᯝ䛸䛧䛶䝰䞊䝍䛾ᾘ㈝㟁ຊ䜢ᢚ䛘䜛䛣䛸䛜䛷䛝䜛䛯䜑ᚑ᮶ᆺ䛸ẚ㍑䛧㧗࿘Ἴ㐠㌿㡿ᇦ䛷ຠ⋡䛜Ⰻ䛔䛣䛸䛜䜟䛛䛳䛯䠊㻌䜎䛯䠈䝅䝇䝔䝮䜢ᵓᡂ䛩䜛㝿䛻୺ὶ䛺Ⓨ⇕፹య䛷䛒䜛 㻳㼐 䜔㻸㼍 ⣔☢ᛶᮦᩱ䛿䠈ึᮇ䝁䝇䝖䛻䛚䛔䛶኱䛝䛺๭ྜ䜢༨䜑䛶䛔䜛䠊䜘䛳䛶䠈඲࿘㓄⨨ᆺ⿦⨨䛻䛚䛔䛶䝎䜽䝖䛾෭፹ὶ䜜᪉ྥ䛾඘ሸᒙ㛗䛥䛾ᙳ㡪䜢ㄪ䜉䛯䠊㻲㼕㼓㻚㻌 㻟 䛻඘ሸᒙ㛗䛥䛸 ᗘᕪ䂴㼀㻩㻣䉝䛻䛚䛡䜛෭෾⬟ຊ䛸ᡂ⦼ಀᩘ䛾㛵ಀ䜢♧䛩䠊඘ሸᒙ㛗䛥䛜㛗䛔䜋䛹䠈䜘䜚ከ䛟䛾⇕䜢☢ᛶᮦᩱ䛛䜙ᚓ䜙䜜䜛䛯䜑෭෾⬟ຊ䛿ྥୖ䛧䛯䠊୍᪉䠈ᡂ⦼ಀᩘ䛻䛴䛔䛶䛿෭෾⬟ຊ䛜ྥୖ䛧䛶䜒඘ሸᒙෆ䛾ᅽຊᦆኻ䛻䜘䛳䛶෭፹౪⤥䝫䞁䝥䛾ᾘ㈝㟁ຊ䛜ቑ኱䛩䜛䛯䜑 㻞㻜㻜㼙㼙 ௨ୖ䛷䛿ྥୖ䛧䛺䛛䛳䛯䠊䛧䛯䛜䛳䛶䠈☢ᛶᮦᩱ䜔☢▼䛺䛹䛾䝁䝇䝖䜢⪃៖䛩䜛䛸䠈䛣䛾ሙྜ䛿㻞㻜㻜㼙㼙 ⛬ᗘ䛜㐺ᙜ䛷䛒䜛䛣䛸䛜䜟䛛䜛䠊㻌㻌㻠䠊⤖ゝ㻌㻌 ᚑ᮶ᆺ䛸඲࿘㓄⨨ᆺ䛾ᐊ ☢Ẽ෭෾ᶵ䛾ᛶ⬟ẚ㍑䠈ཬ䜃඲࿘㓄⨨ᆺ⿦⨨䛻䛚䛡䜛䝎䜽䝖䛾෭፹ὶ䜜᪉ྥ䛾඘ሸᒙ㛗䛥䛾ᙳ㡪䜢ᩘ್ィ⟬䛻䜘䛳䛶ㄪᰝ䛧䛯䠊㻌㻌㻲㼕㼓㻚㻌㻟㻌 㻌 㻱㼒㼒㼑㼏㼠㻌㼛㼒㻌㼜㼍㼏㼗㼑㼐㻌㼎㼑㼐㻌㼘㼑㼚㼓㼠㼔㻌
第83回

2010年度秋季低温工学・超電導学会

1C-a08

冷却要素技術㻞㻜㻷 ෭෾ᶵ⏝䝇䝔䞁䝺䝇䝯䝑䝅䝳⵳෭ᮦ䛾ᩘ್ゎᯒ㻌㻺㼡㼙㼑㼞㼕㼏㼍㼘㻌㼍㼚㼍㼘㼥㼟㼕㼟㻌㼛㼒㻌㼠㼔㼑㻌㼟㼠㼍㼕㼚㼘㼑㼟㼟㻌㼟㼠㼑㼑㼘㻌㼙㼑㼟㼔㻌㼞㼑㼓㼑㼚㼑㼞㼍㼠㼛㼞㻌㼙㼍㼠㼑㼞㼕㼍㼘㻌㼒㼛㼞㻌㻞㻜㻷㻌㼏㼞㼥㼛㼏㼛㼛㼘㼑㼞㼟㻌㻌ቑᒣ㻌 ᪂஧䠈⁪ཱྀ㻌 㞝ኴ㻔኱ᓥၟ⯪㧗ᑓ㻕䠗ᒾ⏣㻌 ᒎᖾ䠈ᒣᮏ㻌 ᐶ㻔᪥኱㻕㻌㻹㻭㻿㼁㼅㻭㻹㻭㻌㻿㼔㼕㼚㼖㼕㻘㻌㼀㻭㻷㻵㻳㼁㻯㻴㻵㻌㼅㼡㼠㼍㻔㻻㼟㼔㼕㼙㼍㻌㻺㼍㼠㼕㼛㼚㼍㼘㻌㻯㼛㼘㼘㼑㼓㼑㻕䠗㻌 㻵㼃㻭㼀㻭㻌㻺㼛㼎㼡㼥㼡㼗㼕㻘㻌㼅㻭㻹㻭㻹㻻㼀㻻㻌㻴㼕㼞㼛㼟㼔㼕㻔㻺㼕㼔㼛㼚㻌㼁㼚㼕㼢㻚㻕㻌㻱㻙㼙㼍㼕㼘㻦㻌㼙㼍㼟㼡㼥㼍㼙㼍㻬㼛㼟㼔㼕㼙㼍㻙㼗㻚㼍㼏㻚㼖㼜㻌㻌䠑䠊䜎䛸䜑㻌
䠍䠊䛿䛨䜑䛻㻌
㧗ຠ⋡ 㻞㻜㻷 ෭෾ᶵ䛾㛤Ⓨ䜢┠ᣦ䛧䛶䠈㻝 ẁ⵳෭ჾ䛻䝇䝔䞁ᾮయỈ⣲䜔㧗 ㉸㟁ᑟ䝅䝇䝔䝮䛺䛹䛻㐺ᛂྍ⬟䛺䠈㧗ຠ䝺䝇䝯䝑䝅䝳䜢✚ᒙ䛥䛫䛯䛸䛝䛾ᛶ⬟䜢ᩘ್ゎᯒ䛻䜘䜚ホ౯䛧⋡ 㻞㻜㻷 ෭෾ᶵ䛾㛤Ⓨ䛜せồ䛥䜜ጞ䜑䛶䛝䛶䛔䜛䚹⵳෭ᘧᑠᆺ
䛯䚹⤖ᯝ䛛䜙䠈ྠ୍䝯䝑䝅䝳䝃䜲䝈䛷䜒⥺ᚄ䛻䜘䜚䠈ᛶ⬟䛻኱䛝෭෾ᶵ䛻䛚䛔䛶 㻞㻜㻷 䛸䛔䛖෭༷ ᗘ䛿䠈⵳෭ᮦ䜔෭༷䝇䝔䞊䛺ᕪ䛜⏕䛨䜛䛣䛸䛜ศ䛛䛳䛯䚹䜎䛯䠈஧ᒙᵓ㐀䛻䛩䜛䛣䛸䛷䠈⇕䝆ᩘ㻔㻝 ẁ䛛 㻞 ẁ㻕䜢㑅ᐃ䛩䜛㝿䛻䠈㛤Ⓨ⪅䜢ᝎ䜎䛫䜛 ᗘ㡿ᇦຊᏛⓗຠ⋡䛜ྥୖ䛩䜛䛣䛸䛜ศ䛛䛳䛯䚹㻌䛷䛒䜛䛸ᛮ䜟䜜䜛䚹෭෾ᶵ䛾〇స䝁䝇䝖䜎䛷⪃៖䛩䜜䜀䠈᪤Ꮡ䛺䛚䠈୕ᒙᵓ㐀䛾ゎᯒ䜒⾜䛳䛶䛔䜛䛜䠈⌧ᅾ䛾䛸䛣䜝䠈஧ᒙ䛾⵳෭ᮦ䜢౑⏝䛧 㻝 ẁ䝇䝔䞊䝆䛷ᐇ⌧䛩䜛䛣䛸䛜ᮃ䜎䛧䛔䚹㻌ᵓ㐀䛾ᛶ⬟䜢ୖᅇ䜛⤌ྜ䛫䛿䠈ぢฟ䛥䜜䛶䛔䛺䛔䚹㻌䛭䛣䛷ᮏ◊✲䛷䛿䠈㻝 ẁ෭෾ᶵ䜢᝿ᐃ䛧䠈䛭䛾⵳෭ᮦ䛻䝇㻌䝔䞁䝺䝇㻔㻿㼁㻿㻕䝯䝑䝅䝳䜢✚ᒙ䛧䛯ሙྜ䛾 㻞㻜㻷 䛻䛚䛡䜛ᛶ⬟ホㅰ㎡㻌 ᮏ◊✲䛿䠈㻺㻵㻲㻿 ୍⯡ඹྠ◊✲䛂䝟䝹䝇⟶㟁ὶ䝸䞊䝗䛾౯䜢ᩘ್ゎᯒ䛻䜘䜚⾜䛳䛯䚹௨ୗ䛻䠈ゎᯒ䝰䝕䝹䠈ゎᯒ⤖ᯝ⵳෭ჾ䛻䛚䛡䜛ᦆኻཎᅉ䛾✲᫂䛃䛺䜙䜃䛻䠈᪥኱ඹྠ◊✲䜢㏙䜉䜛䚹㻌
䛂኱ฟຊ䝟䝹䝇䝏䝳䞊䝤෭෾ᶵ䛾㛤Ⓨ䛃䛾୍⎔䛸䛧䛶ᐇ᪋䛧䛶㻌䛔䜛䚹㻌䠎䠊ゎᯒ䝰䝕䝹㻌
㻌ᩘ್ゎᯒ䝰䝕䝹䛿䠈ෆᚄ 㻡㻞㼙㼙䃅䠈㛗䛥 㻞㻜㼏㼙 䛾 㻝 ẁ⵳෭㼀㼍㼎㼘㼑㻌㻝㻌㻿㼠㼍㼕㼚㼘㼑㼟㼟㻌㼟㼠㼑㼑㼘㻌㼙㼑㼟㼔㻌㼟㼕㼦㼑㻌㼍㼚㼐㻌㼣㼕㼞㼑㻌㼐㼕㼍㼙㼑㼠㼑㼞㻌ჾ䜢᝿ᐃ䛧䠈㧗 ➃ 㻟㻜㻜㻷䠈ప ➃ 㻞㻜㻷 䛸䛧䠈ືస࿘Ἴᩘ䜢
㼃㼕㼞㼑㻌
㼃㼕㼞㼑㻌
㻞㻴㼦 ୍ᐃ䛸䛧䛯䚹ᖹᆒᅽຊ䛸ᅽ⦰ẚ䛿䠈䛭䜜䛮䜜 㻝㻚㻢㻹㻼㼍䠈㻞㻚㻞
㻹㼑㼟㼔
㻹㼑㼟㼔㻌
㻺㼛㻌
㼐㼕㼍㼙㼑㼠㼑㼞
㻺㼛㻌㼐㼕㼍㼙㼑㼠㼑㼞
䛸䛧䠈䝦䝸䜴䝮䛾㉁㔞ὶ㔞䛿 㻡㼓㻛㼟 䛸䛧䛯䚹㻌
㼟㼕㼦㼑
㼟㼕㼦㼑㻌
㻌 㼇㼙㼙㼉㻌㻌 㼇㼙㼙㼉㻌
ィ⟬䝋䝣䝖䛿䠈㻺㻵㻿㼀 䛜㓄ᕸ䛧䛶䛔䜛 㻾㻱㻳㻱㻺㻟㻚㻟 䜢౑⏝䛧䛯䚹
㻝㻌
㻜㻚㻜㻡㻌
㻝㻜㻌
㻟㻜㻜㻌
㻜㻚㻜㻟㻌
⵳෭ᮦ䛾ホ౯䛻౑⏝䛧䛯 㻾㻱㻳㻱㻺 䛾ฟຊ⤖ᯝ䛿䠈෭෾⬟ຊ䛸䠈
㻝㻡㻜㻌
㻞㻌
㻜㻚㻜㻢㻌
㻝㻝㻌
㻜㻚㻜㻞㻡㻌㻯㻻㻼 䛻 ୧ ➃ ᗘ 䛾 ẚ 䜢 ᥃ 䛡 䛯 ⇕ ຊ Ꮫ ⓗ ຠ ⋡ 㻔㼠㼔㼑㼞㼙㼛㻙㻌㻟㻌㻜㻚㻜㻢㻡㻌
㻝㻞㻌㻜㻚㻜㻟㻞㻌
㻟㻡㻜㻌㼐㼥㼚㼍㼙㼕㼏㻌㼟㼑㼏㼛㼚㼐㻌㼘㼍㼣㻌㼑㼒㼒㼕㼏㼕㼑㼚㼏㼥㻕 K Th / Tc  COP 䜢⏝䛔䛯䚹㻌
㻠㻌
㻡㻌
㻢㻌
㻣㻌
㻤㻌
㻥㻌

㻜㻚㻜㻟㻌
㻜㻚㻜㻠㻌
㻜㻚㻜㻡㻌
㻜㻚㻜㻞㻌
㻜㻚㻜㻟㻌
㻜㻚㻜㻠㻌

㻞㻜㻜㻌

㻞㻡㻜㻌

㻝㻟㻌
㻝㻠㻌
㻝㻡㻌
㻌
㻌
㻌

㻜㻚㻜㻟㻡㻌
㻜㻚㻜㻝㻤㻌
㻜㻚㻜㻞㻡㻌

㻠㻜㻜㻌㻌― 54 ―

㻯㼛㼛㼘㼕㼚㼓㻌㼜㼛㼣㼑㼞㻌㼍㼠㻌㻞㻜㻌㻷㻌㼇㼃㼉

㻝㻜㻚㻜
㻤㻚㻜
㻢㻚㻜
㻠㻚㻜
㻞㻚㻜
㻜㻚㻜
㻝

㻞

㻟

㻠

㻡

㻢

㻣

㻤 㻥 㻝㻜 㻝㻝 㻝㻞 㻝㻟 㻝㻠 㻝㻡㻺㼛㻲㼕㼓㻚㻌㻝㻌㻯㼛㼛㼘㼕㼚㼓㻌㼜㼛㼣㼑㼞㻌㼍㼠㻌㻞㻜㻷㻌㼛㼒㻌㼛㼚㼑㻌㼘㼍㼥㼑㼞㻌㼞㼑㼓㼑㼚㼑㼞㼍㼠㼛㼞㻌
㻜㻚㻠㻞
㻜㻚㻟㻤
㻜㻚㻟㻠
䃖

⵳෭ჾෆ䛻✚ᒙ䛧䛯 㻿㼁㻿 䝯䝑䝅䝳䛿ᖹ⧊䛷䛒䜚䠈ẚ㍑㐺ᐜ᫆䛻ධᡭྍ⬟䛷䛒䜝䛖䝯䝑䝅䝳䝃䜲䝈䠈⥺ᚄ䜢㑅ᐃ䛧䛯䚹ィ⟬䛻౑⏝䛧䛯 㻝㻡 ✀㢮䛾 㻿㼁㻿 䝯䝑䝅䝳䜢 㼀㼍㼎㼘㼑㻌 㻝 䛻♧䛩䚹䛺䛚䠈⾲୰䛾䇿㻺㼛䇿䛿䠈㏻䛧␒ྕ䛷䛒䜛䚹㻌㻌䠏䠊୍ᒙᵓ㐀䛾ゎᯒ⤖ᯝ㻌㧗 ➃䛛䜙ప ➃䜎䛷䠈ྠ୍䛾 㻿㼁㻿 䝯䝑䝅䝳䜢✚ᒙ䠄୍ᒙᵓ㐀䠅䛧䛯䛸䛝䛾䠈㻞㻜㻷 䛷䛾෭෾⬟ຊ⤖ᯝ䜢 㻲㼕㼓㻚㻌 㻝 䛻♧䛩䚹ᶓ㍈䛿䠈㼀㼍㼎㼘㼑㻌 㻝 䛾䇿㻺㼛䇿䛻ᑐᛂ䛧䛶䛔䜛䚹䝯䝑䝅䝳䝃䜲䝈䛻䜘䜚෭෾⬟ຊ䛻㐪䛔䛜⌧䜜䛶䛔䜛䛜䠈ྠ䛨䝯䝑䝅䝳䝃䜲䝈䛷䜒䠈౑⏝䛩䜛⥺ᚄ䛻䜘䜚䠈෭෾⬟ຊ䛻኱䛝䛺ᕪ䛜⏕䛨䛶䛔䜛䚹᭱㐺䛺 㻿㼁㻿䝯䝑䝅䝳䛿㻏㻟㻡㻜䠄㻜㻚㻜㻟㻡䠅䠄䜹䝑䝁ෆ䛾ᩘ್䛿⥺ᚄ㼇㼙㼙㼉䜢♧䛩䠅䛷䛒䜚䠈㻥㻚㻤㻞㼃㻬㻞㻜㻷 䛾෭෾⬟ຊ䛜ᚓ䜙䜜䛶䛔䜛䚹㻌㻌䠐䠊஧ᒙᵓ㐀䛾ゎᯒ⤖ᯝ㻌ḟ䛻䠈␗✀䛾 㻿㼁㻿 䝯䝑䝅䝳䜢㧗䞉ప ഃ䛻✚ᒙ䠄஧ᒙᵓ㐀䠅䛧䛯䛸䛝䛾ゎᯒ䜢⾜䛳䛯䚹ప ഃ䛿㻏㻟㻡㻜㻔㻜㻚㻜㻟㻡㻕䛸䛧䠈㧗 ഃ䛻␗✀䛾䝯䝑䝅䝳䜢✚ᒙ䛥䛫䠈䛭䜜䜙䛾๭ྜ䜢ኚ໬䛥䛫䛯䚹䃖䜢㻲㼕㼓㻚㻌 㻞 䛻♧䛩䚹㻏㻟㻡㻜㻔㻜㻚㻜㻟㻡㻕䝯䝑䝅䝳୍ᒙᵓ㐀䛾⤖ᯝ䜒䝥䝻䝑䝖䛧䛶䛒䜛䚹䛣䛾ᅗ䛻䛚䛔䛶䠈ᶓ㍈䛾ព࿡䛿䠈౛䛘䜀㻏㻝㻡㻜 䝯䝑䝅䝳䛜 㻜㻚䠓䛾䛸䛝䠈㧗 ➃䛛䜙 㻣㻜䠂䠄㻝㻠㼏㼙䠅䜎䛷䛜㻏㻝㻡㻜 䝯䝑䝅䝳䠈ṧ䜚䛾 㻟㻜䠂㻔㻢㼏㼙㻕䛜㻏㻟㻡㻜 䝯䝑䝅䝳䛷䛒䜛䚹䜎䛯䠈ྛィ⟬䝫䜲䞁䝖䛻䛚䛔䛶᭱㐺䛺⥺ᚄ䛜㑅䜀䜜䛯䚹㻌஧ᒙᵓ㐀䛾෭෾⬟ຊ䛿䠈䛔䛪䜜䛾䝯䝑䝅䝳䜢㧗 ഃ䛻౑⏝䛧䛶䜒䠈つ᱁㛗䛥 㻜㻚㻥 䜎䛷෭෾⬟ຊ䛿䜋䜌ྠ䛨䛷䛒䜚䠈䛭䛾್䛿㻏㻟㻡㻜 䝯䝑䝅䝳୍ᒙᵓ㐀䛸ẚ㍑䛧䛶䜒኱ᕪ䛺䛔䚹୍᪉䛷䠈㻲㼕㼓㻚㻌㻞 䛾䃖䛿䠈኱䛝䛺㐪䛔䛜⌧䜜䛶䛔䜛䚹䛔䛪䜜䛾䝯䝑䝅䝳䛻䛚䛔䛶䜒 㻜㻚㻥 ௨ୗ䛾⠊ᅖ䛷㻏㻟㻡㻜 䝯䝑䝅䝳୍ᒙᵓ㐀䜘䜚኱䛝䛺್䛜ᚓ䜙䜜䛶䛔䜛䚹≉䛻䠈㻏㻝㻡㻜 䝯䝑䝅䝳䛜 㻜㻚㻥 ௨ୗ䛾⠊ᅖ䛻䛚䛔䛶᭱䜒኱䛝䛺್䜢♧䛧䛶䛔䜛䚹㻌௨ୖ䛾⤖ᯝ䛛䜙䠈෭෾⬟ຊ䛸䃖䛾஧䛴䜢ྠ᫬䛻⪃៖䛩䜛䛸䠈㻏㻝㻡㻜㻔㻜㻚㻜㻢㻡㻕㻦㻏㻟㻡㻜㻔㻜㻚㻜㻟㻡㻕㻩㻜㻚㻤㻦㻜㻚㻞 䛒䜛䛔䛿䠈㻏㻝㻡㻜㻔㻜㻚㻜㻢㻡㻕㻦㻏㻟㻡㻜㻌㻔㻜㻚㻜㻟㻡㻕㻩㻜㻚㻥㻦㻜㻚㻝 䛾๭ྜ䛜᭱㐺䛷䛒䜛䛸ぢ✚䜒䜙䜜䛯䚹㻌

㻜㻚㻟㻜
㻜㻚㻞㻢

㻏㻝㻡㻜
㻏㻞㻡㻜
㻏㻠㻜㻜

㻜㻚㻞㻞

㻏㻞㻜㻜
㻏㻟㻜㻜
㻏㻟㻡㻜

㻜㻚㻝㻤
㻜㻚㻠

㻜㻚㻡

㻜㻚㻢
㻜㻚㻣
㻜㻚㻤
㻺㼛㼞㼙㼍㼘㼕㼦㼑㼐㻌㼘㼑㼚㼓㼠㼔㻜㻚㻥㻝㻲㼕㼓㻚㻞㻌㻿㼑㼏㼛㼚㼐㻌㼘㼍㼣㻌㼑㼒㼒㼕㼏㼕㼑㼚㼏㼥㻌㼛㼒㻌㼠㼣㼛㻌㼘㼍㼥㼑㼞㻌㼞㼑㼓㼑㼚㼑㼞㼍㼠㼛㼞㻌
第83回

2010年度秋季低温工学・超電導学会

1C-a09

冷却要素技術㻞㻜㻜㻌㼙 ⣭㉸ఏᑟ┤ὶ㏦㟁ᐇドᐇ㦂⿦⨨㻔㻯㻭㻿㻱㻾㻙㻞㻕䛷䛾㻌➨୍ᮇ෭༷ヨ㦂᫬䛾䝨䝹䝏䜵㟁ὶ䝸䞊䝗䛾 ᗘศᕸ≉ᛶ
Temperature distribution and performance of Peltier current lead for superconducting direct
current transmission test device of CASER-2
Ἑཎᩄ⏨ 1䚸Ώ㑓⿱ᩥ 1䚸὾㎶ㄔ 1䚸ᒣཱྀసኴ㑻 1䚸Ụᮏ㞞ᙪ 2䚸ᘬᆅᗣ㞝 3䚸⟪㍯ᫀၨ 3㻌 䠄୰㒊኱ 1䚸᰾⼥ྜ◊ 2䚸᫛࿴㟁⥺ 3䠅
KAWAHARA Toshio1, WATANABE Hirofumi1 , HAMABE Makoto1 , YAMAGUCHI Satarou1, EMOTO Masahiko2,
HIKICHI Yasuo3, MINOWA Masahiro3 (Chubu Univ. 1, NIFS2, SWCC3)
E-mail: toshi@isc.chubu.ac.jp280㻝䠊䛿䛨䜑䛻㻌
⮬↛䜶䝛䝹䜼䞊䛸⤌䜏ྜ䜟䛫䛶䝇䝬䞊䝖䜾䝸䝑䝗ᵓ⠏䛾ᇶ┙ᢏ⾡䛸䛺䜛䜒䛾䛷䛒䜚䚸㏆ᖺᙉ䛟ᐇ⏝໬䛜ồ䜑䜙䜜䛶䛔䜛㉸ఏ
ᑟ㏦㓄㟁䝅䝇䝔䝮䛾ᐇ⏝໬䜢┠ᣦ䛧䛶䚸ᡃ䚻䛿◊✲䜢㐍䜑䛶
䛔䜛䚹2006 ᖺ䛻䛿䚸20 m ⣭䛾┤ὶ㉸ఏᑟ䜿䞊䝤䝹ヨ㦂⿦⨨(CASER-1)䜢ୡ⏺䛷ึ䜑䛶᏶ᡂ䛥䛫䚸⇕౵ධపῶ䛾䛯䜑䛾ྛ✀䝟䝷䝯䞊䝍䜢ホ౯䛧䛶䛝䛯[1]䚹2009 ᖺᗘ䛻䛿䚸CASER-1 䜢Ⓨᒎ䛥䛫 200 m ⣭㉸ఏᑟ┤ὶ㏦㟁ᐇドᐇ㦂⿦⨨(CASER-2)
䛾ᘓタ䜢⾜䛳䛯䚹
㉸ఏᑟᛂ⏝䝅䝇䝔䝮䛻䛸䛳䛶⇕౵ධ䛾పῶ䛜䝅䝇䝔䝮ᛶ⬟䛷䛒䜚䚸㏦㓄㟁䝅䝇䝔䝮䛷䛿኱㟁ຊ䛾ධฟຊ䜢⾜䛖䛯䜑➃ᮎ㟁ὶ䝸䞊䝗䛾㧗ᛶ⬟໬䛜ᚲ㡲䛷䛒䜛[2]䚹䛭䛣䛷䚸CASER-2
䛷䜒䚸➃ᮎ䛾⇕౵ධపῶ䛸䛧䛶䝨䝹䝏䜵㟁ὶ䝸䞊䝗(PCL)䛜⤌䜏㎸䜎䜜䛶䛔䜛䚹CASER-2 䛷䛿䚸2010 ᖺ 1 ᭶䛛䜙 3 ᭶䜎䛷➨୍ᮇ෭༷ヨ㦂䜢⾜䛔䚸෭፹ᚠ⎔ヨ㦂䚸㉸ఏᑟ䜿䞊䝤䝹㏻㟁
ヨ㦂➼䜢⾜䛳䛯䚹ᮏㅮ₇䛷䛿䚸➨୍ᮇ෭༷ヨ㦂᫬䛾㟁ὶ䝸䞊䝗䛾ᛶ⬟ホ౯䛾䛯䜑䛻䚸PCL 䛻㏻㟁䛧䛯㝿䛾 ᗘ➼䛾≉ᛶホ౯⤖ᯝ䛸䛧䛶䚸෭༷ヨ㦂᫬䛾 ᗘศᕸ䜔㏻㟁㟁ὶ౫Ꮡᛶ䛻䛴䛔䛶ሗ࿌䛩䜛䚹≉䛻䚸⇕㟁㒊䛾୧➃䛻䛿 70 K ⛬ᗘ䛾 ᗘᕪ䛜Ꮡᅾ䛧䚸ᐊ 䛸ప 㒊䛾 ᗘᕪ䜢⇕㟁㒊䛻㞟୰䛥䛫䛶
PCL 䛻䜘䜛⇕౵ධపῶ䛻ᡂຌ䛧䛯䚹㻟䠊⤖ᯝ䛸㆟ㄽ㻌Figure 1 䛻♧䛩䜘䛖䛻䚸㠀㏻㟁᫬䛻䛿⇕㟁ᮦᩱ䛾ప䛔⇕ఏᑟ⋡䜢཯ᫎ䛧䛶䚸⇕㟁㒊䛾୧➃䛷኱䛝䛺 ᗘᕪ䛜ほ 䛥䜜䛯䚹䛥䜙䛻䚸㏻㟁᫬䛾≉ᛶホ౯䛸䛧䛶䚸➨୍ᮇ෭༷ヨ㦂䛷䛿⥲㏻㟁㟁ὶ 1.2 kA 䜎䛷䛾ᐇ㦂䜢⾜䛳䛯䛜䚸㏻㟁᫬䛻䛿䝨䝹䝏䜵ຠᯝ䛻䜘䜚㠀㏻㟁᫬䛻ẚ䜉䛶 ᗘᕪ䛜ቑ኱䛧䚸᩿⇕ᛶ⬟䛜ྥୖ䛧䛯䚹䛧䛛䛧䚸⇕㟁㒊୧➃䛾 ᗘᕪ䛾㟁ὶ౫Ꮡᛶ䜢ぢ䜛䛸䚸㟁ὶ䝸䞊䝗䛾㟁ὶ䛜኱䛝䛟䛺䛳䛯㝿䛻 ᗘᕪ䛾ቑ኱⋡䛜ᑡ䛺䛟䛺䜛䛣䛸䛜䜟䛛䛳䛯䚹෭༷ヨ㦂᫬䛾⇕㟁㒊䛾㟁Ẽ᢬ᢠ䜢ぢ䜛䛸䚸౛䛘䜀䚸ᐊ
䛷 0.43 m:䛷䛒䜚䚸77 K 䛷 0.41 m:䛷䛒䛳䛯䚹䝰䝕䝹䝟䝷䝯䞊䝍䛸ẚ㍑䛩䜛䛸㟁Ẽ᢬ᢠ⋡䛾 ᗘኚ໬䛜ᑠ䛥䛟䚸⇕㟁ᮦᩱ䛾୙ᆒ୍ᛶ䜔㟁ᴟ⏺㠃᢬ᢠ➼䛜ᙳ㡪䜢୚䛘䛶䛔䜛䛣䛸䛜ண᝿䛥䜜䜛䚹䛭䛣䛷䚸ᐇ 䛥䜜䛯㟁Ẽ᢬ᢠ⋡䜢⏝䛔䛶⇕౵ධ䛾㟁ὶ౫Ꮡᛶ䜢ィ⟬䛧䛯(Fig. 2)䚹⇕౵ධ㔞䛿⣙ 32 W/kA 䛸༑ศపTemperature (K)

240
220
200
180
160
140

0

0.05

0.1
0.15
Position (m)0.2

Fig. 1: Temperature distribution on PCL (I = 0).
70
60Heat leak (W/kA)㻞䠊ᐇ㦂㻌CASER-2 䛾 PCL 䛾⤌䜏㎸䜏᫬䛾⇕㟁ᮦᩱ䛾ᙧ≧ᅉᏊ
(Shape factor)䛿䚸ู㏵ィ 䛧䛯䝰䝕䝹⇕㟁ᮦᩱ䛾≀ᛶ್䛛䜙ồ䜑䛯䚹CASER-2 䛷⏝䛔䛶䛔䜛㉸ఏᑟ䝔䞊䝥⥺ᮦ䛜 160 A⣭䛷䛒䜛䛾䛷䚸䝨䝹䝏䜵ຠᯝ䛻䜘䜛⇕䝫䞁䝥ຠᯝ䜢⪃៖䛧䛯⇕ఏᑟ᪉⛬ᘧ䜢⏝䛔䛶䚸㏻㟁㟁ὶ 160 A 䛷᭱㐺໬䛧䛯[2,3]䚹
㻌 ෭༷ヨ㦂᫬䛾 PCL 䛾≉ᛶホ౯䛸䛧䛶㟁ὶ䝸䞊䝗ྛ㒊ศ䛾ᗘ䛸㟁ᅽ䜢 ᐃ䛧䛯䚹㠀㟁ὶ䛸㏻㟁᫬䛾 ᗘศᕸ䜢ィ 䛧䚸䝨䝹䝏䜵㒊䛾 ᗘᕪ䛾㟁ὶ౫Ꮡᛶ䜢ホ౯䛧䛯䚹䛥䜙䛻䚸෭༷ヨ㦂୰䛻 ᐃ䛧䛯㟁Ẽ᢬ᢠ⋡䜢⏝䛔䛶⇕ఏᑟ᪉⛬ᘧ䛻䜘䜛䝅䝭䝳䝺䞊䝅䝵䞁䜢⾜䛔⇕౵ධ䛾㟁ὶ౫Ꮡᛶ䜢ẚ㍑䛧䛯䚹䛥䜙䛻䚸෭༷᫬䛾䝟䝷䝯䞊䝍䜢ඖ䛻ᙧ≧ᅉᏊ䛾෌᭱㐺໬䛸䛭䛾㝿䛾⇕౵ධ㔞䜢ィ⟬䛧䛯䚹n-typep-type
Cu

260

50
40
30
20

0

50

100
Current (A)

150

200


Fig. 2: Current dependence of heat leak on PCL. Filled
circles is for heat leak using initial shape factors and filledsquired using re-optimized shape factors.
ῶ䛥䜜䛶䛔䜛䛜䚸᭱㐺㟁ὶ䛜ẚ㍑ⓗᑠ䛥䛔䛣䛸䛜䜟䛛䛳䛯䚹䛭䛣䛷䚸ᙧ≧ᅉᏊ䛾෌᭱㐺໬䜢⾜䛔䚸⇕౵ධ㔞䛾㟁ὶ౫Ꮡᛶ䜢ィ⟬䛧䛯䚹ᙧ≧ᅉᏊ䛾෌᭱㐺໬䛻䜘䜚㏻㟁㟁ὶ䛾᭱㐺್䛜኱㟁ὶഃ䛻䝅䝣䝖䛩䜛䛸䛸䜒䛻䚸⇕౵ධ䛾ᑠ䛥䛔㟁ὶ⠊ᅖ䛜ᗈ䛜䛳䛶䛔䜛䛣䛸䛜䜟䛛䛳䛯䚹㻠䠊䜎䛸䜑㻌
PCL 䛾ᛶ⬟䛿⇕㟁ᮦᩱ䛾≉ᛶ䛻౫Ꮡ䛩䜛䛯䜑ྛ✀⇕㟁ᮦᩱ䛾≉ᛶホ౯䛜 PCL 䛾ᛶ⬟䛻ᙳ㡪䜢୚䛘䜛䚹䛭䛾䛯䜑䚸኱㟁ὶ䛜ὶ䜜䜛㏦㓄㟁ᛂ⏝䛷䛿䚸⇕㟁ᮦᩱ䛾୙ᆒ୍ᛶ➼䛾ホ౯䜒ྵ䜑䛶㐠⏝㟁ὶ䜢Ỵ䜑䛶䛔䛟䛣䛸䛜㔜せ䛷䛒䜚䚸䛭䛾⤖ᯝ䚸
PCL 䛻䜘䜛➃ᮎ⇕౵ධపῶຠᯝ䛜᭱኱㝈䛻ά⏝䛷䛝䜛䛣䛸䛜
䜟䛛䛳䛯䚹
ཧ⪃ᩥ⊩㻌
1. S. Yamaguchi, et al.: J. Phys.: Conf. Ser., Vol. 97 (2008)
0122902. S. Yamaguchi, et al.: Rev. Sci. Instrum., Vol. 75 (2004)
pp.207
3. H. Okumura, et al.: IEEE Trans. Appl. Supercond., Vol. 7(1997) pp.715― 55 ―

第83回

2010年度秋季低温工学・超電導学会

1C-a10

冷却要素技術ከᒙ᩿⇕ᮦ䛾䜰䝹䝭⵨╔䛻䜘䜛⇕౵ධ㔞䛾ᙳ㡪㻌㻵㼚㼒㼘㼡㼑㼚㼏㼑㻌㼛㼒㻌㼠㼔㼑㻌㼔㼑㼍㼠㻌㼘㼑㼍㼗㻌㼎㼥㻌㼍㼘㼡㼙㼕㼚㼡㼙㻌㼑㼢㼍㼜㼛㼞㼍㼠㼕㼛㼚㻌㼛㼒㻌㼙㼡㼘㼠㼕㼘㼍㼥㼑㼞㻌㼕㼚㼟㼡㼘㼍㼠㼛㼞ᶓᒣ㻌 ᙲ୍㻌 䠄୕⳻㟁ᶵ䠅
YOKOYAMA Shoichi (㹋ITSUBISHI Electric Corp.)
E-mail; Yokoyama.Shoichi@dx.MitsubishiElectric.co.jp䠍䠊䛿䛨䜑䛻ᴟప ⿦⨨䛾᩿⇕ᮦ䛸䛧䛶䜘䛟౑䜟䜜䜛ከᒙ᩿⇕ᮦ䠄㻹㻸㻵䠅䛾ᛶ⬟ヨ㦂䛻䛴䛔䛶䚸ఏᑟ෭༷ヨ㦂⿦⨨䜢⏝䛔⢭ᗘⰋ䛟ᐇ᪋䛷䛝䜛䜘䛖䛻䛺䛳䛯䚹䛣䜜䜎䛷䚸㻹㻸㻵 䛻ຍ䜟䜛㠃Ⲵ㔜䛻䜘䜛⇕౵ධ㔞䛾ᙳ㡪䜢ሗ࿌䛧䛯㻌 㼇䠍㼉䚹䛧䛛䛧䚸↓Ⲵ㔜䛷䛾್䛿䚸㻹㻸㻵 䛾⣲ᮦ䛻䜘䜚䝞䝷䝒䜻䛜䛒䜛䛣䛸䛜ศ䛛䛳䛶䛔䜛䚹䛣䛣䛷䛿䚸㻹㻸㻵 䛾୺ᛶ⬟䛷䛒䜛⇕౵ධ㔞䜢Ỵ䜑䜛せᅉ䜢ㄪ䜉䜛䛯䜑䚸ྛ✀ 㻹㻸㻵 䛾䜰䝹䝭⵨╔䝣䜱䝹䝮䛾䜰䝹䝭⭷䛻╔┠䛧䛶᳨ウ䜢⾜䛳䛯䛣䛸䛻䛴䛔䛶ሗ࿌䛩䜛䚹㻌ཧ⪃ᩥ⊩䠷㻝䠹ᶓᒣᙲ୍䜋䛛䠖➨ 㻤㻝 ᅇప ᕤᏛ䞉㉸㟁ᑟᏛ఍ண✏㞟㻔㻞㻜㻜㻥㻕㻝㻠㻝㻌㼔㼕㼓㼔㻌㼠㼑㼙㼜㼍㼞㼑㼠㼡㼞㼑㼟㼔㼕㼑㼘㼐㻌㼜㼘㼍㼠㼑㻔㻞㻥㻣㻷㻕㻼㼠㻙㻯㼛㼟㼑㼚㼟㼛㼞㻴 㼑 㼍㼠 㼘 㼑 㼍㼗㼙㼑 㼍㼟 㼡 㼞 㼑 㼙㼑 㼚 㼠㼜 㼘 㼍㼠 㼑 㻔 㻞 㻥 㻣 㻷 㻕

200mm䃥

㼔㼑㼍㼠㼑㼞
㼒㼛㼞㻌㼏㼛㼚㼠㼞㼛㼘䠎䠊ከᒙ᩿⇕ᮦ䛾⇕㈇Ⲵ ᐃከᒙ᩿⇕ᮦ䛾⇕㈇Ⲵ ᐃ᪉ἲ䛿᪤䛻ሗ࿌㼇䠍㼉䛧䛶䛔䜛䜘䛖䛻䚸㻲㼕㼓㻚䠍䛻♧䛩䜘䛖䛺ఏᑟ෭༷ヨ㦂⿦⨨䜢⏝䛔䛶䛔䜛䚹ᮏ ᐃ䛷䛿䚸ప 䝇䝔䞊䝆䛸┤ᚄ 㻞㻜㻜㼙㼙 䛾⇕౵ධ㔞 ᐃ⏝䛾㧗 ഃ䝥䝺䞊䝖㛫䛻 㻹㻸㻵 ヨᩱ䜢ᣳ䜏䚸⣒䛷 ᐃ䝥䝺䞊䝖䜢ྞ䜚ୖ䛢ᩘ 㼙㼙 ⛬ᗘ䛾䛩䛝㛫䜢ಖᣢ䛧䛶䛔䜛䚹⇕㈇Ⲵ䛿䚸 ᗘไᚚ䛧䛶䛔䜛 ᐃ䝥䝺䞊䝖䛾ຍ⇕㔞䛸䛧䛯䚹ᅗ䛾䜘䛖䛻䚸 ᐃ䝥䝺䞊䝖䛸ྠ 䛻ไᚚ䛩䜛㍽ᑕ䝅䞊䝹䝗䛷そ䛖䛣䛸䛻䜘䜚䚸ᩘ 㼙㼃 䛾⢭ᗘ䛷 ᐃ䛜䛷䛝䜛䚹㻌ྛ✀䝯䞊䜹䛾 㻹㻸㻵 䜢㧗 ഃ㻞㻥㻣㻷䚸ప ഃ㻤㻜㻷 䛷 ᐃ䛧䛯⤖ᯝ䚸䜰䝹䝭⵨╔䝣䜱䝹䝮䚸䝛䝑䝖䝇䝨䞊䝃ྛ䚻㻝㻜 ✚ᒙ䛾䜒䛾䛷 㻝㻚㻣䡚㻟㻚㻠㼃㻛㼙㻞 䛸䠎ಸ㏆䛔䝞䝷䝒䜻䛜䛒䜛䛣䛸䛜ศ䛛䛳䛯䚹㻌

㻹㻸㻵
㻼㼠㻙㻯㼛
㼟㼑㼚㼟㼛㼞

MLI sample㼠㼔㼑㼞㼙㼍㼘
㼟㼔㼕㼑㼘㼐
㻔㻤㻜㻷㻕㼘㼛㼣㻌㼠㼑㼙㼜㼍㼞㼑㼠㼡㼞㼑㻌㼟㼠㼍㼓㼑㻌㻔㻤㻜㻷㻕Fig.1 Schematic drawing of the heat load measurement system
by conduction cooling at no-load.
㻟㻚㻡㻴㼑㼍㼠㻌㻸㼛㼍㼐㻌㻽㻔㼃㻛㼙㻞㻕

㻟
㻞㻚㻡
㻞
㻝㻚㻡
㻝
㻜㻚㻡
㻜
㻜

㻝㻜

㻞㻜

㻟㻜

㻠㻜

㻡㻜

㻢㻜

㻭㼘㼡㼙㼕㼚㼡㼙㻌㼒㼕㼘㼙㻌㼠㼔㼕㼏㼗㼚㼑㼟㼟㻌㻔㼚㼙㻕Fig.2 Heat load dependence of aluminum thickness㻟㻚㻡㻟㻴㼑㼍㼠㻌㻸㼛㼍㼐㻌㻽㻔㼃㻛㼙㻞㻕䠏䠊䜰䝹䝭⵨╔⭷䛾ᙳ㡪᳨ウ௒ᅇ ᐃ䛧䛯䠔✀㢮䛾 㻹㻸㻵 䛿䚸䜰䝹䝭⵨╔䝣䜱䝹䝮ཌ䛥 㻢䃛㼙 䛸㻝㻞䃛㼙䚸䜰䝹䝭⵨╔⭷ཌ䛿 㻝㻜䡚㻡㻜㼚㼙䚸䝫䝸䜶䝇䝔䝹〇䝛䝑䝖䝇䝨䞊䝃䛿ཌ䛥 㻜㻚㻝㼙㼙 ௨ୗ䚸㔜䛥 㻝㻜㼓㻛㼙㻞 ௨ୗ䛾ᩘ✀㢮䛾䜒䛾䜢౑⏝䚹㻌↓Ⲵ㔜䛷䛾 㻹㻸㻵 䛾ᛶ⬟䛿䜰䝹䝭⵨╔⭷䛾㍽ᑕ䛜ከ䛟ᙳ㡪䛩䜛䛸⪃䛘䜰䝹䝭⭷䜢ㄪᰝ䛧䛯䚹౑⏝䛧䛯 㻹㻸㻵 䛾䜰䝹䝭⵨╔䝣䜱䝹䝮䜢▷෉≧䛻ษ᩿䛧⾲㠃᢬ᢠ䜢 ᐃ䛧䚸ᖖ 䠄㻞㻜䉝䠅䛷䛾䜰䝹䝭䛾᢬ᢠ⋡䛛䜙⭷ཌ䜢⟬ᐃ䛧䚸௙ᵝ䛾⭷ཌ್䛸↷ྜ䛧☜ㄆ䛧䛯䚹㻌䜰䝹䝭⵨╔⭷ཌ䛸⇕౵ධ㔞䛾㛵ಀ䜢 㻲㼕㼓㻚㻞 䛻♧䛧䛯䚹ᅗ䛛䜙ศ䛛䜛䜘䛖䛻⭷ཌ䛜ཌ䛔䜋䛹⇕㈇Ⲵ䛜ῶ䜛ഴྥ䛜ⱝᖸぢ䜙䜜䜛䛜 㻡㻜㼚㼙ཌ䛾ヨᩱ䛿 㻟㼃㻛㼙㻞 䛸㧗䜑䛷䛒䜛䚹㻌䛭䛣䛷䚸䜰䝹䝭⵨╔䝣䜱䝹䝮䜢ᾮయ❅⣲ ᗘ䛻෭༷䛧⾲㠃᢬ᢠ䜢ᐃ䛧䚸ᖖ 䛷䛾್䛸ẚ㍑䛧䛯⤖ᯝ䚸᢬ᢠẚ䠄㻾㻾㼀㻛㻾㻣㻣㻷䠅䛿 㻝㻚㻣䡚㻞㻚㻡䛸⣧䜰䝹䝭䛾᢬ᢠẚ䠔⛬ᗘ䛻ẚ䜉ప䛟䚸䜰䝹䝭⭷㉁䛾పୗ䛜ぢ䜙䜜䛯䚹䜰䝹䝭⵨╔䝣䜱䝹䝮䛻⏝䛔䜙䜜䜛䝍䞊䝀䝑䝖䛿㧗⣧ᗘ䜰䝹䝭䛜⏝䛔䜙䜜䜛䛣䛸䛛䜙䚸⵨╔᫬䛾䝣䜱䝹䝮䛸䛾ṧ␃ᛂຊ䛺䛹䛻ᙳ㡪䛧䛶䛔䜛䛸⪃䛘䜙䜜䜛䚹㻌䛣䛾᢬ᢠẚ䠄㻾㻾㼀㻛㻾㻣㻣㻷䠅䜢⏝䛔䛶⇕㈇Ⲵ䛾┦㛵䜢䜾䝷䝣໬䛧䛯⤖ᯝ䚸㻲㼕㼓㻚㻟 䛾䜘䛖䛻䚸᢬ᢠẚ䠄㻾㻾㼀㻛㻾㻣㻣㻷䠅䛜኱䛝䛔䜋䛹⇕㈇Ⲵ≉ᛶ䛜ᨵၿ䛩䜛┦㛵䛜䛒䜛䛣䛸䛜ศ䛛䜛䚹㻌௨ୖ䛾䛣䛸䛛䜙䚸↓Ⲵ㔜䛻䛚䛡䜛 㻹㻸㻵 䛾᩿⇕ᛶ⬟䛿䚸䜰䝹䝭⵨╔⭷䛾≧ែ䛻౫Ꮡ䛩䜛䛣䛸䛜ศ䛛䛳䛯䚹㻌㼟㼠㼞㼕㼚㼓

㻳㻲㻾㻼
㻮㼍㼞

䠐䠊䜎䛸䜑
ఏᑟ෭༷ヨ㦂⿦⨨䜢⏝䛔㻹㻸㻵䛾⇕㈇Ⲵ䜢 ᐃ䛧䛯䚹↓Ⲵ㔜䛷䛾⇕㈇Ⲵ䛿䚸䜰䝹䝭⵨╔⭷䛾᢬ᢠẚ䠄㻾㻾㼀㻛㻾㻣㻣㻷䠅䛻Ⰻ䛟┦㛵䛧䚸䜰䝹䝭⵨╔⭷䛾㉁䛜 㻹㻸㻵 䛾᩿⇕ᛶ⬟䛻ᙳ㡪䛩䜛䛣䛸䛜ศ䛛䛳䛯䚹㻌― 56 ―

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㻝㻚㻡

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㻾㼑㼟㼕㼟㼠㼍㼚㼏㼑㻌㼞㼍㼠㼕㼛㻌㼛㼒㻌㼞㼛㼛㼙㻌㼠㼑㼙㼜㼑㼞㼍㼠㼡㼞㼑㻌㼠㼛㻌㻣㻣㻷㻔㻾㻾㼀㻛㻾 㻣㻣㻷㻕Fig.3 Heat load dependence of resistance ratio of the aluminum
第83回

2010年度秋季低温工学・超電導学会

1C-a11

冷却要素技術䝺䞊䝄䞊᰾⼥ྜ㧗㏿Ⅼⅆ᪉ᘧ⏝䜽䝷䜲䜸䝍䞊䝀䝑䝖䛾㛤Ⓨ㻌䠉䝣䜷䞊䝮ෆ䛻䛚䛡䜛ᅛయ⇞ᩱ඘ሸ⋡䛾ホ౯◊✲䠉㻌㻰㼑㼢㼑㼘㼛㼜㼙㼑㼚㼠㻌㼛㼒㻌㼠㼔㼑㻌㼏㼞㼥㼛㼓㼑㼚㼕㼏㻌㼠㼍㼞㼓㼑㼠㻌㼒㼛㼞㻌㻲㼍㼟㼠㻌㻵㼓㼚㼕㼠㼕㼛㼚㻌㼛㼒㻌㻵㼚㼑㼞㼠㼕㼍㼘㻌㻯㼛㼚㼒㼕㼚㼑㼙㼑㼚㼠㻌㻲㼡㼟㼕㼛㼚㻌㻙㻌㻯㼔㼍㼞㼍㼏㼠㼑㼞㼕㼦㼍㼠㼕㼛㼚㻌㼛㼒㻌㼠㼔㼑㻌㼞㼍㼠㼕㼛㻌㼛㼒㻌㼒㼕㼘㼘㼕㼚㼓㻌㼠㼔㼑㻌㼟㼛㼘㼕㼐㻌㼒㼡㼑㼘㻌㼕㼚㼠㼛㻌㼠㼔㼑㻌㼒㼛㼍㼙㻌㼘㼍㼥㼑㼞㻌㻙㻌㻌⸨ᮧ㻌⊛㻘୰஭㻌ග⏨㻘㻌஌ᯇ㻌 Ꮥዲ㻘ᮏ㛫㻌 ၨྐ㻘⏫㻌 ┿ḟ㻘␪ᆅ㻌 ᏹ㻌 䠄኱㜰኱Ꮫ䝺䞊䝄䞊䜶䝛䝹䜼䞊Ꮫ◊✲䝉䞁䝍䞊䠅䠗㻌ᒾᮏ㻌᫭ྐ䠄᰾⼥ྜ⛉Ꮫ◊✲ᡤ䠅㻌㻲㼁㻶㻵㻹㼁㻾㻭㻌㼀㼍㼗㼑㼟㼔㼕䠈㻌㻺㻭㻷㻭㻵㻌㻹㼕㼠㼟㼡㼛㻘㻌 㻌㻺㻻㻾㻵㻹㻭㼀㻿㼁㻌㼀㼍㼗㼍㼥㼛㼟㼔㼕㻘㻌 㻴㻻㻹㻹㻭㻌㻴㼕㼞㼛㼒㼡㼙㼕㻘㻌㻹㻭㻯㻴㻵㻌 㻿㼔㼕㼚㼖㼕㻌㻔㻵㻸㻱㻕㻧㻌㻌㻵㼃㻭㻹㻻㼀㻻㻌㻭㼗㼕㼒㼡㼙㼕㻌㻔㻺㻵㻲㻿㻕㻌㻌㻱㻙㼙㼍㼕㼘㻦㻌㼠㻙㼒㼡㼖㼕㼙㼡㼞㼍㻬㼕㼘㼑㻚㼛㼟㼍㼗㼍㻙㼡㻚㼍㼏㻚㼖㼜㻌㻌෭෾ᶵ௜䛝䜽䝷䜲䜸䝇䝍䝑䝖䜢⏝䛔䛶䚸䜺䝇䝦䝸䜴䝮䛾⇕ఏ㐩せ᪨㻌䛻䜘䜚䝃䞁䝥䝹䜢෭༷䛧䛯㼇㻠㼉䚹䛹䛱䜙䛾ሙྜ䜒䚸䝃䞁䝥䝹䜢㻌 䝺䞊䝄䞊᰾⼥ྜ䛾䝍䞊䝀䝑䝖䛻⇞ᩱ䜢඘ሸ䛩䜛᪉ἲ䛸䛧䛶䚸㻝㻠㻷௜㏆䜎䛷෭༷䛧䛯ᚋ䚸ᾮయỈ⣲䜢඘ሸ䛧䛯䚹⊂⮬䛻⪃᱌䝇䝫䞁䝆≧䛾పᐦᗘ䝣䜷䞊䝮䛻ᾮయ⇞ᩱ䜢඘ሸ䛧䚸ᅛ໬䛥䛫䛧䛯ᅛయỈ⣲䛾඘ሸ⋡䜢㧗䜑䜛᪉ἲ䛸䛿䚸䝃䞁䝥䝹ୗഃ䛛䜙䜛᪉ἲ䛜㛤Ⓨ䛥䜜䛶䛔䜛䚹䛣䛣䛷䚸⇞ᩱ䛜ᅛ໬䛩䜛㝿䛻ᐦᗘᅛ໬䛥䛫䚸䜖䛳䛟䜚ୖഃ䛻㐍⾜䛥䛫䜛䛣䛸䛷䛒䜛䚹䛭䛾≧ἣ䜢䛜ୖ᪼䛧䚸ᅛయ⇞ᩱᒙ䛻ẼἻ䛜ฟ᮶䜛䚹䛣䛾ẼἻ䛿䝺䞊䝄䞊స䜛䛯䜑䛻䝃䞁䝥䝹䛾ୖୗ䛻 ᗘ໙㓄䜢䛴䛡䚸 ᗘ໙㓄䜢᰾⼥ྜ䛾ຠ⋡䜢పୗ䛥䛫䜛䚹䛭䛣䛷䚸ᅛయ⇞ᩱ䜢ྵ䜐䝣䜷䞊䛴䛡䛯䜎䜎䚸ᚎ䚻䛻 ᗘ䜢ୗ䛢䛶䛔䛝ᅛ໬䛥䛫䛯䚹㻌䝮ᒙෆ䛾ẼἻ䜢ῶ䜙䛩᪉ἲ䛸䚸⇞ᩱᒙ୰䛾ẼἻ䛾๭ྜ䜢ṇᒅᢡ⋡䜢 ᐃ䛩䜛䛯䜑䛻䚸䝬䝑䝝䝒䜵䞁䝎䞊ᆺ䛾ᖸ΅ィ䜢☜䛻ホ౯䛩䜛᪉ἲ䛾㛤Ⓨ䛜ồ䜑䜙䜜䛶䛔䜛䚹ᮏ◊✲䛷䛿䚸⊂⏝䛔䛯䚹䛭䛾ග※䛻䛿㻴㼑㻙㻺㼑䝺䞊䝄䞊㻔㻢㻟㻟㼚㼙㻘㻌㻡㻥㻠㼚㼙㻕䜢⏝䛔⮬䛻⪃᱌䛧䛯ᅛయỈ⣲䛾඘ሸ⋡䜢䛒䛢䜛᪉ἲ䜢ᐇ᪋䛧䚸䝣䜷䛯䚹ᾮయỈ⣲䜢඘ሸ䛧䛯ሙྜ䛸䚸ᅛయỈ⣲䜢඘ሸ䛧䛯ሙྜ䛾䞊䝮ෆ㒊䛾ᅛయỈ⣲䛾඘ሸ⋡䛾ホ౯ᡭἲ䜢᪂䛯䛻ᥦ᱌䛩ᖸ΅⦤䛾㛫㝸䜢 ᐃ䛧䚸ᒅᢡ⋡䛜᪤▱䛷䛒䜛ᾮయỈ⣲䛾⦤䜛䚹㻌㛫㝸䛸ᅛయỈ⣲䛾⦤㛫㝸䜢ẚ㍑䛩䜛䛣䛸䛻䜘䜚䚸┦ᑐⓗ䛻ᅛ㻌యỈ⣲䛾ᒅᢡ⋡䜢ồ䜑䛯䚹䛣䛾䛸䛝䚸䝣䜷䞊䝮䛜᭷䜛ሙྜ䛻䛿䚸䠍䠊 ⥴ゝ㻌䝣䜷䞊䝮ᒙෆ㒊䛾ẼἻ䜢ྵ䜐ᅛయỈ⣲䛾䜏䛛䛡䛾ᒅᢡ⋡䛜㻌኱㜰኱Ꮫ䝺䞊䝄䞊䜶䝛䝹䜼䞊Ꮫ◊✲䝉䞁䝍䞊㻔㻵㻸㻱㻕䛷䛿㧗䛔ᐃ䛷䛝䜛䚹䝣䜷䞊䝮ෆ䛻ྵ䜎䜜䜛ᅛయỈ⣲䛾䜏䛛䛡䛾ᒅᢡ䜶䝛䝹䜼䞊฼ᚓ䜢ᚓ䜛䛣䛸䛜ฟ᮶䜛㧗㏿Ⅼⅆᡭἲ䛻ὀຊ䛧䚸⋡䛸䚸ᅛయỈ⣲䛾ᒅᢡ⋡䜢ẚ㍑䛩䜛䛣䛸䛻䜘䛳䛶䚸䝣䜷䞊䝮ෆ䜶䝛䝹䜼䞊฼ᚓ㻜㻚㻝䜢┠ᶆ䛸䛧䛯㻲㻵㻾㻱㼄㻙㻵ィ⏬䜢㐍䜑䛶䛔䜛䛻඘ሸ䛥䜜䛯ᅛయỈ⣲䛾඘ሸ⋡䜢ホ౯䛧䛯䚹㻌㼇㻝㼉䚹䛣䛾ィ⏬䛻䛚䛔䛶䛿㻲㼕㼓㻚㻝䛻♧䛩䜘䛖䛺䝍䞊䝀䝑䝖䛜ᚲせ䛷䛒䜛㼇㻞㼉䚹䛣䛾䝍䞊䝀䝑䝖䛾పᐦᗘ䝣䜷䞊䝮䛾㒊ศ䛻Ỉ⣲ྠ఩య⇞ᩱ䜢ᾮయ䛷඘ሸ䛧ᅛ໬䛥䛫䜛䚹⇞ᩱ䛾ᅛ໬䛻క䛔ᐦᗘኚ໬䛜⏕䛨ẼἻ䛜Ⓨ⏕䛩䜛䛣䛸䛜ᣦ᦬䛥䜜䛶䛔䜛䚹䛣䛾⇞ᩱᒙ୰䛾ẼἻ䛿䝺䞊䝄䞊᰾⼥ྜ䛾⇿⦰ᛶ⬟䜢పୗ䛥䛫䜛䚹䛣䛣䛷䚸ᐇ㝿䛻䛹䜜䛟䜙䛔ẼἻ䛜Ⓨ⏕䛧䛶䛔䜛䛛䚸ゝ䛔᥮䛘䜛䛸䝣䜷䞊䝮ᒙ䛻䛚䛡䜛ᅛయ⇞ᩱ䛾඘ሸ⋡䛿ㄪ䜉䜙䜜䛶䛔䛺䛔䚹䛭䛣䛷䚸ྍ⬟䛺㝈䜚ᅛయ⇞ᩱ䛾඘ሸ⋡䜢ୖ䛢䜛᪉ἲ䛾㛤Ⓨ䛸䚸ᅛయ⇞ᩱ䛾඘ሸ⋡䜢ホ౯䛩䜛᪉ἲ䛾㛤Ⓨ䛜ồ䜑䜙䜜䛶䛔䜛䚹䛭䛣䛷䚸௒ᅇ䛾◊✲䛷䛿䚸ᖸ΅ィ 䜢⏝䛔䛯ᅛయ⇞ᩱ䛾඘ሸ⋡䛾ホ౯ᡭἲ䜢㛤Ⓨ䛧䚸᭦䛻⊂⮬䛻ᅛయ⇞ᩱ䛾඘ሸ⋡䜢
Figure 2. A schematic view of the wedge sample.
ୖ䛢䜛᪉ἲ䜢⪃᱌䛧䚸ᐇ㦂ⓗ䛻䛭䛾᭷ຠᛶ䜢ㄪ䜉䛯䚹㻌

Figure 1. A schematic view of a cryogenic target with a plastic
foam shell and a gas feeder.
㻌䠎䠊 ᐇ㦂᪉ἲ㻌ᒅᢡ⋡䜢 ᐃ䛩䜛䛯䜑䛻㻲㼕㼓㻚㻞㻌 䛻♧䛩䜘䛖䛺୕ゅᰕ䠄䜴䜵䝑䝐ᆺ䠅䛾䝃䞁䝥䝹䜢⏝䛔䛯䚹䝣䜷䞊䝮䛾䛒䜛䜒䛾䛸䛺䛔䜒䛾䛾஧✀㢮䜢⏝ព䛧䛯䚹ᇶ‽䛸䛺䜛ᅛయỈ⣲䛾ᒅᢡ⋡䜢 ᐃ䛩䜛䛯䜑䛻䝣䜷䞊䝮䛜ྵ䜎䜜䛶䛔䛺䛔䜒䛾䜢⏝䛔䛯䚹䝣䜷䞊䝮ෆ㒊䛾ẼἻ䜢ྵ䜣䛰ᅛయỈ⣲䛾䜏䛛䛡䛾ᒅᢡ⋡䜢 ᐃ䛩䜛䛯䜑䛻䝣䜷䞊䝮䛾ྵ䜎䜜䛶䛔䜛䜒䛾䜢⏝䛔䛯䚹䝣䜷䞊䝮ᮦ䛿䝺䝌䝹䝅䝜䞊䝹䛸䝩䝹䝬䝸䞁䛾㔜ྜ≀䛷䛒䜛䝣䜵䝜䞊䝹⣔䝣䜷䞊䝮ᮦ㻔㻾㻲㻌㼒㼛㼍㼙㻕䛷䛒䜛㼇㻟㼉䚹㻌䠏䠊 ⤖ᯝ㻌ᅛయỈ⣲䛾ᒅᢡ⋡䛿㻝㻚㻝㻟㻡䛸 ᐃ䛷䛝䛯䚹䝣䜷䞊䝮ᒙෆ䛾ẼἻ䜢ྵ䜐ᅛయỈ⣲䛾䜏䛛䛡䛾ᒅᢡ⋡䛿㻝㻚㻝㻟㻟䛷䛒䜚䚸ᅛయ⇞ᩱ䛾඘ሸ⋡䛿㻥㻤㻑䛷䛒䜛䛸ィ⟬䛷䛝䜛䚹㻌㻌䠐䠊 䜎䛸䜑㻌
ᒅᢡ⋡䛾ẚ㍑䛛䜙඘ሸ⋡䜢ホ౯䛩䜛ᡭἲ䜢ᥦ᱌䛧䛯䚹ᗘ໙㓄䜢タ䛡䛯ᅛయ⇞ᩱ䛾඘ሸ⋡䜢ୖ䛢䜛᪉ἲ䜢ᐇ㦂ⓗ䛻
ヨ䛧䛯䚹䜎䛯䚸䛭䛾඘ሸ⋡䛾ホ౯ᡭἲ䜢᪂䛯䛻ᥦ᱌䛧䛯䚹௒ᅇ䛾ᐇ㦂䛷䛿䝣䜷䞊䝮ෆ㒊䛾඘ሸ⋡䛿㻥㻤䠂䛷䛒䜛䛸ホ౯䛥䜜䜋䜌㻝㻜㻜䠂䛾඘ሸ⋡䛜ᐇ⌧䛷䛝䛯䚹㻌ཧ⪃ᩥ⊩㻌 㻌[1] H. Azechi and the FIREX project, Plasma Phys. Control.
Fusion 48 (2006) B267-B275.
[2] K. Nagai et al., Nucl. Fusion 45 (2005) 1277-1283,[3] F. Ito et al., Japanese Journal of Applied Physics 45, No. 11,(2006) L335–L338[4] A. Iwamoto et. al., Proceedings of the 21 st IAEA
Conference Fusion Energy (2006) IF/P5-1― 57 ―

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冷却要素技術䝺䞊䝄䞊᰾⼥ྜ㧗㏿Ⅼⅆ᪉ᘧ⏝䜽䝷䜲䜸䝍䞊䝀䝑䝖䛾㛤Ⓨ䠉䝍䞊䝀䝑䝖෭༷᫬䛾ᶵᲔⓗ䛺ㄢ㢟䠉㻰㼑㼢㼑㼘㼛㼜㼙㼑㼚㼠㻌㼛㼒㻌㼠㼔㼑㻌㼏㼞㼥㼛㼓㼑㼚㼕㼏㻌㼠㼍㼞㼓㼑㼠㻌㼒㼛㼞㻌㼒㼍㼟㼠㻌㼕㼓㼚㼕㼠㼕㼛㼚㻌㼛㼒㻌㼘㼍㼟㼑㼞㻌㼒㼡㼟㼕㼛㼚㻌㻙㻹㼑㼏㼔㼍㼚㼕㼏㼍㼘㻌㼕㼟㼟㼡㼑㼟㻌㼛㼒㻌㼍㼟㼟㼑㼙㼎㼘㼑㼐㻌㼠㼍㼞㼓㼑㼠㻌㼍㼠㻌㼏㼞㼥㼛㼓㼑㼚㼕㼏㻌㼑㼚㼢㼕㼞㼛㼚㼙㼑㼚㼠㻙㻌㻌ᒾᮏ㻌 ᫭ྐ㻘㻌 ᆏୖ㻌 ோᚿ㻌 㻔㻺㻵㻲㻿㻕㻧㻌⸨ᮧ㻌 ⊛㻘㻌 ୰஭㻌 ග⏨㻘㻌 ஌ᯇ㻌 Ꮥዲ㻌 䠄㜰኱䝺䞊䝄䞊◊䠅㻧㻌 ◁ཎ㻌 ῟㻌 䠄䝺䞊䝄䞊⥲◊䠅㻌㻵㼃㻭㻹㻻㼀㻻㻌㻭㼗㼕㼒㼡㼙㼕㻘㻌㻿㻭㻷㻭㻳㻭㻹㻵㻌㻴㼕㼠㼛㼟㼔㼕㻌㻔㻺㻵㻲㻿㻕㻧㻌 㻌㻲㼁㻶㻵㻹㼁㻾㻭㻌㼀㼍㼗㼑㼟㼔㼕㻘㻌㻺㻭㻷㻭㻵㻌㻹㼕㼠㼟㼡㼛㻘㻌㻺㻻㻾㻵㻹㻭㼀㻿㼁㻌㼀㼍㼗㼍㼥㼛㼟㼔㼕㻘㻌㻔㻵㻸㻱㻘㻌㻻㼟㼍㼗㼍㻌㼁㼚㼕㼢㻚㻕㻧㻌㻿㼁㻺㻭㻴㻭㻾㻭㻌 㻭㼠㼟㼡㼟㼔㼕㻌㻔㻵㻸㼀㻕㻌㻱㻙㼙㼍㼕㼘㻦㻌㼕㼣㼍㼙㼛㼠㼛㻚㼍㼗㼕㼒㼡㼙㼕㻬㻸㻴㻰㻚㼚㼕㼒㼟㻚㼍㼏㻚㼖㼜㻌㻌࡞෭༷ヨ㦂ኻᩋ౛ࢆ 㻲㼕㼓㻚㻞 䛻♧䛩䚹㔠〇䝁䞊䞁䜺䜲䝗䛸 㻼㻿 䝅䠍䠊 䛿䛨䜑䛻㻌㧗㏿Ⅼⅆ⏝䝍䞊䝀䝑䝖䛿䚸ᅛయ⇞ᩱᒙ䜢ྵ䜐䝥䝷䝇䝏䝑䜽䜵䝹㛫䛾᥋╔㒊䛛䜙ᅛయ≧䛾Ỉ⣲䛜ᄇฟ䛧䛶䛔䜛䛾䛜ぢ䛘䜛䚹䝅䜵䝹䚸Ⅼⅆ䝺䞊䝄䞊䜢䜺䜲䝗䛩䜛㔠〇䝁䞊䞁䚸䝅䜵䝹䛻┤᥋ᐊ⇞ᩱ䜢౪⤥䛩䜛䜺䝷䝇〇⇞ᩱ౪⤥⟶䛛䜙ᡂ䜚䚸᥋╔๣䜢౑⏝෭༷㐣⛬䛻䝸䞊䜽Ⓨ⏕䛾せᅉ䛜䛒䜛䛣䛸䛜᥎䛷䛾䝸䞊䜽ヨ㦂᫬䛻䛿䝅䜵䝹䛾Ẽᐦᛶ䛜☜ㄆ䛥䜜䛶䛚䜚䚸䛷䛝䜛䚹䛧䛶䛭䜜䜙䜢୍䛴䛾䝍䞊䝀䝑䝖䛻⤌䜏❧䛶䛶䛔䜛䚹㻌 ⇞ᩱ䛿ᅛయỈ⣲䠄ྠ఩య䠅䛷䛒䜚䚸ᐊ䛷⤌䜏❧䛶䜙䜜䛯䝍䞊䝀䝑䝖䛿㻝㻜㻷⛬ᗘ䜎䛷෭༷䛥䜜䜛䚹␗✀ᮦᩱ䛷ᵓᡂ䛥䜜䜛䝍䞊䝀䝑䝖䛷䛿ᮦᩱ㛫䛾⇕཰⦰ᕪ䛻䜘䜛ᶵᲔⓗ䛺ၥ㢟䜔䛭䜜䛻㉳ᅉ䛩䜛䝍䞊䝀䝑䝖䛾ኚᙧ䛜ண᝿䛥䜜䜛䚹䛣䜜䜙䛿䚸䝍䞊䝀䝑䝖䛾೺඲ᛶ䜔᰾⼥ྜ཯ᛂຠ⋡䛻ᙳ㡪䛩䜛䚹㻌 ᮏሗ࿌䛷䛿㻭㻺㻿㼅㻿䜢౑⏝䛧䛯ィ⟬⤖ᯝ䛛䜙䚸෭༷䛻㉳ᅉ䛩䜛䝍䞊䝀䝑䝖䛾ᶵᲔⓗ䛺ㄢ㢟䛸䛭䛾ᑐ⟇䛾᳨ウ䛻䛴䛔䛶ሗ࿌䛩䜛䚹㻌⌧ᅾ䚸኱㜰኱Ꮫ䝺䞊䝄䞊䜶䝛䝹䜼䞊Ꮫ◊✲䝉䞁䝍䞊㻔㻵㻸㻱㻕㻌䛷䛿 㻲㼍㼟㼠㻌㻵㼓㼚㼕㼠㼕㼛㼚㻌㻾㼑㼍㼘㼕㼦㼍㼠㼕㼛㼚㻌㻱㼤㼜㼑㼞㼕㼙㼑㼚㼠㻌㻔㻲㻵㻾㻱㼄㻕ィ⏬䜢㐙⾜㻲㼕㼓㻚㻌㻞㻌 㻸㼑㼍㼗㻌㼠㼕㼓㼔㼠㼚㼑㼟㼟㻌㼒㼍㼕㼘㼡㼞㼑㻌㼍㼒㼠㼑㼞㻌㼏㼛㼛㼘㻌㼐㼛㼣㼚㻚㻌୰䛷䛒䜛䚹䛣䛾ィ⏬䛷䛿䚸᪂᪉ᘧ䛷䛒䜛㧗㏿Ⅼⅆ᪉ᘧ䛻䜘䜛䝺㻌䞊䝄䞊᰾⼥ྜ䛾ᐇ⌧䜢┠ᣦ䛧䛶䛚䜚䚸᰾⼥ྜ཯ᛂ䜢㉳䛣䛩䛯䜑䛻䠎✀㢮䛾䝺䞊䝄䞊䜢ᚲせ䛸䛩䜛䚹୍䛴䛿⇞ᩱ䜢㉸㧗ᐦᗘ䠐䠊 䠝䠪䠯䠵䠯䜢౑⏝䛧䛯ホ౯㻌䛻ᅽ⦰䛩䜛䝺䞊䝄䞊䚸䜒䛖୍᪉䛿䛭䛾ᅽ⦰䛥䜜䛯⇞ᩱ䜢ຍ⇕䝍䞊䝀䝑䝖䛾 㻞 ḟඖ㍈ᑐ⛠䝰䝕䝹໬䜢⾜䛔䚸ᐊ 䛛䜙䠍䠌㻷䛧䚸᰾⼥ྜⅬⅆ䜢㉳䛣䛩䝺䞊䝄䞊䛷䛒䜛䚹⡿ᅜ䛷䛿୰ᚰⅬⅆ䜈䛾෭༷᫬䛻⏕䛨䜛ኚᙧ䜔⇕ᛂຊ䛺䛹䛻䛴䛔䛶 㻭㻺㻿㼅㻿 䜢౑᪉ᘧ⏝䝍䞊䝀䝑䝖䜢䜋䜌᏶ᡂ䛥䛫䛶䛔䜛䛜䚸㧗㏿Ⅼ᪉ᘧ䛷䛿⏝䛧䛯ホ౯䜢⾜䛳䛯䚹㻲㼕㼓㻚㻟 䛻෭༷ᚋ䛾ኚᙧ䜔⇕ᛂຊ䛺䛹䛾䛭䜜䛸䛿␗䛺䜛௙ᵝ䛾䝍䞊䝀䝑䝖䜢᪂䛯䛻㛤Ⓨ䛩䜛ᚲせ䛜䛒䜛䚹ィ⟬⤖ᯝ䜢♧䛩䚹᭱኱ᛂຊ䜔᭱኱䜂䛪䜏䛿䝅䜵䝹䛸䝁䞊䞁䜺୺䛻 㻵㻸㻱 䛸 㻺㻵㻲㻿 䛜ඹྠ䛷䛭䛾䝍䞊䝀䝑䝖㛤Ⓨ䜢⾜䛳䛶䛔䜛䚹㻌䜲䝗䛾᥋╔㒊ศ䛷Ⓨ⏕䛧䛶䛔䜛䛜䚸᥋╔๣䛸䛧䛶౑⏝䛧䛶䛔䜛㻌䜶䝫䜻䝅ᶞ⬡䛜◚ቯ䛩䜛ᛂຊ䜔䜂䛪䜏䛻䛿㐩䛧䛶䛔䛺䛔䚹䛩䠎䠊 㻲㻵㻾㻱㼄 ⏝䝍䞊䝀䝑䝖䛾௙ᵝ㻌䛺䜟䛱䚸⌮᝿ⓗ䛺≧ែ䛷䛒䜜䜀䜶䝫䜻䝅ᶞ⬡䛻䜘䜚Ẽᐦᛶ䛜㻲㼕㼓㻚㻝 䛻௦⾲ⓗ䛺 㻲㻵㻾㻱㼄 ⏝䝍䞊䝀䝑䝖䜢♧䛩䚹ྛ㒊ရ䛿䜶ಖ䛯䜜䛶䛔䜛䛿䛪䛷䛒䜛䚹䛧䛛䛧䚸ᐇ㦂䛷䛿䝸䞊䜽䛜Ⓨ⏕䛧䛶䝫䜻䝅ᶞ⬡䛻䜘䜚᥋╔䛥䜜䛶䛔䜛䚹ཌ䛥⣙䠎䠌䝭䜽䝻䞁䛾⌫Ẇ≧䛔䜛䚹䛣䜜䛿䚸䜶䝫䜻䝅ᶞ⬡䛜୙ᆒ୍䛻ሬᕸ䛥䜜䚸䛭䛾᭱䜒ᙅ䛾ᅛయ⇞ᩱᒙ䠄Ỉ⣲ྠ఩య䠅䛜 㻼㻿 䝅䜵䝹ෆ㠃䛻ᙧᡂ䛥䜜䚸䛣䛔㒊ศ䛛䜙◚ቯ䛜㉳䛣䛳䛯ྍ⬟ᛶ䛜⪃䛘䜙䜜䜛䚹䜘䛳䛶䝍䞊䝀䛾⇞ᩱᒙ䛿⾲㠃Ⲩ䛥䜔┿⌫ᗘ䛺䛹䛾ཝ䛧䛔ᇶ‽䜢‶䛯䛩ᚲ䝑䝖䛾Ẽᐦᛶ䜢ಖ䛴䛯䜑䛻䛿䚸䛣䛾䜶䝫䜻䝅ᶞ⬡䛻䜘䜛᥋╔㒊せ䛜䛒䜛䚹㻌

䛾೺඲ᛶ䛜㔜せ䛷䛒䜚䚸䛭䛾◚ቯ䜢㑊䛡䜛ᑐ⟇䠖ᆒ୍ᛶ䜔᥋╔๣䛾㔞䛾ไᚚ䛺䛹䚸䛜ᚲせ䛷䛒䜛䚹㻌㻌㻳㼘㼍㼟㼟㻌
㼒㼕㼘㼘㻌㼠㼡㼎㼑㻌㻿㼛㼘㼕㼐㻌㼒㼡㼑㼘㻌 㻌㹼㻞㻜䃛㼙㻌

㻯㼛㼚㼑㻌㼓㼡㼕㼐㼑㻌
㻔㻭㼡㻕㻌

㻡㻜㻜㻌
䃛㼙㻌
㻼㼛㼘㼥㼟㼠㼥㼞㼑㼚㼑㻌㻔㻼㻿㻕㻌㼟㼔㼑㼘㼘㻌㻼㻿㻌㼟㼔㼑㼘㼘㻌㼍㼠㻌㼞㼛㼛㼙㻌㼠㼑㼙㼜㻚㻌㼍㼒㼠㼑㼞㻌㼏㼛㼛㼘㻌㼐㼛㼣㼚㻌㻡㻜㻜䃛㼙㻌 㻌㼕㼚㻌㼐㼕㼍㼙㼑㼠㼑㼞㼤㻝㻜㻌㼑㼚㼘㼍㼞㼓㼑㼐㻌㼐㼑㼒㼛㼞㼙㼍㼠㼕㼛㼚㻌㻱㼜㼛㼤㼥㻌
㻭㼡㻌㼏㼛㼚㼑㻌
㼓㼡㼕㼐㼑㻌

㻌㻲㼕㼓㻚㻌㻝㻌 㼀㼥㼜㼕㼏㼍㼘㻌㼠㼍㼞㼓㼑㼠㻌㼒㼛㼞㻌㻲㻵㻾㻱㼄㻚㻌㻹㼍㼤㻚㻌 㻌㼟㼠㼞㼑㼟㼟㻌㻦㻝㻞㻜㻌㻹㻼㼍㻌㼟㼠㼞㼍㼕㼚㻌㻦㻌㻝㻚㻤㻌㻑㻌

㻢䃛㼙㻌

㻌

䠏䠊 䝍䞊䝀䝑䝖䛾෭༷ヨ㦂⤖ᯝ㻌㻌㻌ࡇࢀࡲ࡛࡟⾜ࡗࡓ෭༷ヨ㦂࡟࠾࠸࡚ほᐹࡉࢀࡓ඾ᆺⓗ― 58 ―

㻲㼕㼓㻚㻌㻟㻌㻭㻺㻿㼅㻿㻌㼏㼍㼘㼏㼡㼘㼍㼠㼕㼛㼚㻌㼛㼚㻌㼠㼍㼞㼓㼑㼠㻌㼏㼛㼛㼘㻌㼐㼛㼣㼚㻚㻌
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1C-p01

NMR / 医療㉸ 㻝㻳㻴㼦㻙㻺㻹㻾 䝬䜾䝛䝑䝖ෆᒙ㓟໬≀㉸㟁ᑟ䝁䜲䝹䛾≉ᛶ㻌㻯㼔㼍㼞㼍㼏㼠㼑㼞㼕㼟㼠㼕㼏㼟㻌㼛㼒㻌㼕㼚㼚㼑㼞㻙㼙㼛㼟㼠㻌㼛㼤㼕㼐㼑㻌㼟㼡㼜㼑㼞㼏㼛㼚㼐㼡㼏㼠㼕㼚㼓㻌㼏㼛㼕㼘㻌㼒㼛㼞㻌㻝㻚㻜㻟㻌㻳㻴㼦㻌㼙㼍㼓㼚㼑㼠㻌㻌㛗㇂㝯ྖ㻘㻌 ㈈ὠாྖ㻘㻌 ᐑᓮ㝯ዲ㻌 䠄⚄ᡞ〇㗰䠅䠗㻌 ⣽㔝ᨻ⨾䠈㧗ᮡ᠇ྖ㻌 䠄᪥ᮏ㟁Ꮚ䠅䠗㻌ᒣᓮಇኵ䠈๓⏣⚽᫂䠄⌮◊䠅䠗㻌 ᓲ㻌 ୡ㙎㻘㻌 ᯇᮏ┿἞㻘㻌 ᮌྜྷ㻌 ྖ㻌 䠄㻺㻵㻹㻿䠅㻌
HASE Takashi, ZAITSU Kyoji, MIYAZAKI Takayoshi (Kobe Steel); HOSONO Masami, TAKASUGI Kenji (JEOL);YAMAZAKI Toshio, MAEDA Hideaki (RIKEN); CHOI Seyong, MATSUMOTO Shinji, KIYOSHI Tsukasa (NIMS)
E-mail : hase.takashi@kobelco.comㄆ䛧䛯䚹䛣䛾᫬䚸㻺㼎㻟㻿㼚 䝁䜲䝹䛷 㻝㻝㻚㻞㻌㼀䚸᭱ෆᒙ 㻮㼕㻙㻞㻞㻞㻟 䝁䜲䝹䠍䠊䛿䛨䜑䛻㻌
┿㘷䛷⿵ᙉ䛧䛯 㻮㼕㻙㻞㻞㻞㻟 䝔䞊䝥⥺ᮦ䛷䛿䚸㻠㻚㻞㻌㻷 䛻෭༷䛩䜛䛷 㻟㻚㻤㻌㼀 䜢Ⓨ⏕䛧䛯䛸⪃䛘䜙䜜䜛䚹௒ᅇ䛾ヨ㦂䛿䚸඲䝁䜲䝹䛾Ⓨ䛣䛸䛻䜘䜚䚸ᑟయ䝔䞊䝥㠃䛻እ㒊☢ሙ䛜ᖹ⾜䛺ሙྜ䛻䛿䚸እ㒊⏕☢᮰ᐦᗘ䛜 㻝㻡㻚㻜㻌㼀 䛷䛒䜚䚸㻝㻚㻜㻟㻌㻳㻴㼦㻙㻺㻹㻾 䝬䜾䝛䝑䝖䛾 㻞㻠㻚㻞㻌㻞☢ሙ 㻞㻤㻌 㼀 ୰䛷䜒 㻞㻜㻜㻌 㻭㻛㼙㼙 䜢ୖᅇ䜛㧗䛔䜸䞊䝞䞊䜸䞊䝹䛾㼀 䛻ẚ䜉䜛䛸 㻥㻚㻞㻌㼀 ప䛔್䛷䛿䛒䜛䛜䚸㻝㻚㻜㻟㻌㻳㻴㼦㻙㻺㻹㻾 䝬䜾䝛⮫⏺㟁ὶᐦᗘ್㻔⮫⏺㟁ὶ䜢ᑟయ䛾඲᩿㠃✚䛷㝖䛧䛯್㻕䛜䝑䝖䛾ᐃ᱁㟁ὶ䛷䛒䜛 㻞㻠㻡㻌㻭 ௨ୖ䛾㟁ὶ䜢Ᏻᐃ䛧䛶ὶ䛩䛣䛸䛜ᚓ䜙䜜䜛㼇㻝㼉䚹㻥㻞㻜㻌 㻹㻴㼦㻙㻺㻹㻾 䝬䜾䝛䝑䝖䛾᭱ෆᒙ 㻺㼎㻟㻿㼚 䝁䜲䝹䛷䛝䜛䛣䛸䜢ᐇド䛷䛝䛯䚹㻌䜢䚸ୖグ䛾┿㘷⿵ᙉ 㻮㼕㻙㻞㻞㻞㻟 ⥺ᮦ䜢⏝䛔䛯᭱ෆᒙ 㻮㼕㻙㻞㻞㻞㻟 䝁ㅰ㎡㻌䜲䝹䛷⨨䛝᥮䛘䜛䛣䛸䛻䜘䜚䚸㔠ᒓ⣔㉸㟁ᑟ⥺ᮦ䛰䛡䛷䛿ᅔ㞴

䛣䛾㛤Ⓨ䛿䚸⊂❧⾜ᨻἲே⛉Ꮫᢏ⾡᣺⯆ᶵᵓ䛾⏘Ꮫ䜲䝜䝧䛸⪃䛘䜙䜜䜛 㻝㻚㻜㻟㻌㻳㻴㼦㻌 䠄㻞㻠㻚㻞㻌㼀䠅䛾 㻺㻹㻾 䝬䜾䝛䝑䝖䛾ᐇ⌧䜢┠䞊䝅䝵䞁ຍ㏿஦ᴗ䠄ඛ➃ィศᯒᢏ⾡䞉ᶵჾ㛤Ⓨ஦ᴗ䠅䛻䜘䜛ⓗ䛸䛧䛶◊✲㛤Ⓨ䜢㐍䜑䛶䛔䜛䚹䛣䛾᭱ෆᒙ 㻮㼕㻙㻞㻞㻞㻟 䝁䜲䝹䛾ᡂᯝ䛷䛒䜛䚹㻌

〇స䜢⾜䛔䚸䛣䜜䜢 㻥㻞㻜㻹㻴㼦㻙㻺㻹㻾 䝬䜾䝛䝑䝖䛾 㻺㼎㻟㻿㼚 䝁䜲䝹䛸ཧ⪃ᩥ⊩㻌䝗䝑䜻䞁䜾䛧䛶䚸䛭䛾≉ᛶホ౯䛾ヨ㦂䜢⾜䛳䛯䚹䛭䛾⤖ᯝ䚸┠㼇㻝㼉㻌 㼀㻚㻌 㻴㼍㼟㼑㻘㻌 㼑㼠㻌 㼍㼘㻚㻦㻌 㻭㼎㼟㼠㼞㼍㼏㼠㼟㻌 㼛㼒㻌 㻯㻿㻶㻌 㻯㼛㼚㼒㼑㼞㼑㼚㼏㼑㻘㻌 㼂㼛㼘㻚㻌 㻣㻤㻌ᶆ௙ᵝ䜢‶㊊䛩䜛⤖ᯝ䛜ᚓ䜙䜜䛯䚹䛭䛾ෆᐜ䛻䛴䛔䛶ሗ࿌䛩㻔㻞㻜㻜㻤㻕㻌㼜㻚㻣㻠㻚㻌㼀㼍㼎㼘㼑㻌㻝㻌 㻌 㻼㼍㼞㼍㼙㼑㼠㼑㼞㼟㻌㼛㼒㻌㼠㼔㼑㻌㼕㼚㼚㼑㼞㻙㼙㼛㼟㼠㻌㻮㼕㻙㻞㻞㻞㻟㻌㼏㼛㼕㼘㻚䜛䚹㻌㼃㼕㼚㼐㼕㼚㼓㻌

㻼㼞㼛㼐㼡㼏㼠㼕㼛㼚㻌㼞㼑㼟㼡㼘㼠㼟㻌㼃㼕㼚㼐㼕㼚㼓㻌㼕㼚㼚㼑㼞㻌㼐㼕㼍㼙㼑㼠㼑㼞㻌㻣㻤㻚㻠㻌㼙㼙㻌

䝥䛷ᣳ䜣䛰᩿㠃ᵓ㐀䠄ᖜ 㻠㻚㻠㻡㻌 㼙㼙㽢ཌ䛥 㻜㻚㻟㻢㻌 㼙㼙䠅䜢᭷䛩䜛㼃㼕㼚㼐㼕㼚㼓㻌㼛㼡㼠㼑㼞㻌㼐㼕㼍㼙㼑㼠㼑㼞㻌㻝㻞㻠㻚㻜㻌㼙㼙㻌㻮㼕㻙㻞㻞㻞㻟 ⥺ᮦ 㻡 䝇䝥䞊䝹ศ䜢⏝䛔䛶䚸㼀㼍㼎㼘㼑㻌 㻝 䛻♧䛩䝁䜲䝹䛻㼃㼕㼚㼐㼕㼚㼓㻌㼔㼑㼕㼓㼔㼠㻌㻤㻠㻜㻌㼙㼙㻌

ᕳ⥺䛧䛯䚹⥺ᮦ඲㛗䛿 㻟㻘㻞㻝㻝㼙 䛷䛒䜚䚸⥺ᮦᕳ⥺㒊ෆ䛻 㻡 ⟠ᡤ㻺㼡㼙㼎㼑㼞㻌㼛㼒㻌㼠㼛㼠㼍㼘㻌㼘㼍㼥㼑㼞㼟㻌㻡㻠㻌䛾ᖖ㟁ᑟ᥋⥆䜢ྵ䜐䚹䛣䛾䝁䜲䝹䜢 㻥㻞㻜㻹㻴䡖䠉㻺㻹㻾 䝬䜾䝛䝑䝖㻺㼡㼙㼎㼑㼞㻌㼛㼒㻌㼠㼛㼠㼍㼘㻌㼠㼡㼞㼚㼟㻌㻝㻜㻘㻜㻥㻠㻌䛾 㻺㼎㻟㻿㼚 䝁䜲䝹䛾䝪䜰ෆ䛻ᤄධ䛧䚸㻺㼎㻟㻿㼚 䝁䜲䝹䛸┤ิ䛻᥋⥆㼀㼛㼠㼍㼘㻌㼏㼛㼚㼐㼡㼏㼠㼛㼞㻌㼘㼑㼚㼓㼠㼔㻌㻟㻘㻞㻝㻝㻌㼙㻌

䠎䠊ᐇ㦂᪉ἲ㻌㻮㼕㻙㻞㻞㻞㻟 䝔䞊䝥⥺ᮦ 㻝 ᯛ䜢ཌ䛥 㻡㻜䃛㼙 䛾 㻞 ᯛ䛾┿㘷〇䝔䞊㻌䛺䛜䜙 㻞㻠㻜㻌㻭 䜎䛷䛿 㻝㻚㻤㻌㻭㻛㼙㼕㼚 䛾㏿ᗘ䛷ບ☢䛧䚸㻞㻠㻜㻌㻭 䛛䜙 㻞㻡㻡㻌㻟㻜㻜㻯㼡㼞㼞㼑㼚㼠
㼂㼛㼘㼠㼍㼓㼑㻭 䜎䛷䛿 㻝㻚㻜㻌㻭㻛㼙㼕㼚 䛾㏿ᗘ䛷ບ☢䛧䛯䚹㻮㼕㻙㻞㻞㻞㻟 䝔䞊䝥⥺ᮦ䜢୪ิ䛻᥋⥆䛧䛯㖡䝤䝇䝞䞊䜢ྵ䜐䝁䜲䝹୧➃㟁ᅽ䜢

㻞㻡㻜

ᐃ䛧䚸

୧➃㟁ᅽ䛾᫬㛫ኚ໬䜢 㻲㼕㼓㻚㻌 㻝 䛻♧䛩䚹㟁ὶ䜢ኚ໬䛥䛫䛶䛔䜛㻯㼡㼞㼞㼑㼚㼠㻌㻔㻭㻕〇స䛧䛯᭱ෆᒙ 㻮㼕㻙㻞㻞㻞㻟 䝁䜲䝹䜈䛾㏻㟁䝟䝍䞊䞁䛸䚸䝁䜲䝹

㻌

㻞㻡㻡㻌㻭
㻜㻚㻞

㻌

䝩䞊䝹⣲Ꮚ䛻䜘䜚䝁䜲䝹୰ᚰ䛾☢᮰ᐦᗘ䜢 ᐃ䛧䛯䚹㻌䠏䠊ᐇ㦂⤖ᯝ㻌

㻜㻚㻞㻡

㻌

㻞㻜㻜

㻌

㻜㻚㻝㻡

㻝㻡㻜

㻌

㻜㻚㻝

㻌
㻝㻜㻜

㻌

㛫䛿䚸䝁䜲䝹䜲䞁䝎䜽䝍䞁䝇䛻䜘䜛㟁ᅽ䛜 㻜㻚㻝㻠㻌 㼂 䜎䛯䛿 㻜㻚㻜㻥㻌 㼂⛬ᗘⓎ⏕䛧䛶䛔䜛䛜䚸㻞㻡㻡㻌㻭 䛷䛾 㻢㻌㼙㼕㼚 㛫䛾㐃⥆㏻㟁᫬䛾䝁䜲
䝹䛾Ⓨ⏕㟁ᅽ䛿 㻜㻚㻤㻞㻌㼙㼂 䛷䛒䜛䛣䛸䛜᫂䜙䛛䛻䛺䛳䛯䚹䛣䛾䛣䛸䛛䜙䚸䝁䜲䝹ᕳ⥺㒊ෆ䛾ᖖ㟁ᑟ᥋⥆䚸㖡㟁ᴟ䛚䜘䜃㖡䝤䝇䝞

㻌

㻡㻜

㻜㻚㻜㻡
㻜

㻌
㻜
㻜

㻞㻜㻜㻜

㻠㻜㻜㻜

䞊㻞 ᮏ䛾᢬ᢠ䛾ྜィ䛿 㻟㻚㻞㽢㻝㻜㻙㻢䃈䛷䛒䜚䚸┠ᶆ䛾 㻤㽢㻝㻜㻙㻢䃈㻢㻜㻜㻜 㻤㻜㻜㻜㼀㼕㼙㼑㻌㻔㼟㻕

௨ୗ䛷䛒䜛䛣䛸䛜☜ㄆ䛷䛝䛯䚹䜎䛯䚸㻞㻡㻡㻌㻭 ㏻㟁᫬䛻䝁䜲䝹඲య

Fig. 1䛷 㻝㻡㻚㻜㻌 㼀 䛾☢᮰ᐦᗘ䜢Ⓨ⏕䛧䛶䛚䜚䚸タィ㏻䜚䛷䛒䜛䛣䛸䜢☜the inner-most Bi-2223 coil.

― 59 ―

㼂㼛㼘㼠㼍㼓㼑㻌㻔㼂㻕䛧䛯䚹䝁䜲䝹඲య䜢 㻠㻚㻞㻌 㻷 䛻෭༷䛧䚸㏵୰䛷㟁ὶ䜢୍ᐃ䛻ಖ䛱㻙㻜㻚㻜㻡㻝㻜㻜㻜㻜 㻝㻞㻜㻜㻜

Operation pattern and voltage behavior of

第83回

2010年度秋季低温工学・超電導学会

1C-p02㧗

NMR / 医療㉸ఏᑟᮦᩱ䜢฼⏝䛧䛯ḟୡ௦ 㻺㻹㻾 ᢏ⾡䛾㛤Ⓨ䠗㧗㟁ὶᐦᗘ䝁䜲䝹໬ᢏ⾡䛾ᵓ⠏䠄䠍䠅䇷㟁☢ຊホ౯⏝ 㻾㻱㻮㻯㻻 䝁䜲䝹㻏㻝㻘㻌㻏㻞 䛾〇స䇷㻌㻰㼑㼢㼑㼘㼛㼜㼙㼑㼚㼠㻌㼛㼒㻌㼠㼔㼑㻌㼚㼑㼤㼠㻙㼓㼑㼚㼑㼞㼍㼠㼕㼛㼚㻌㻺㻹㻾㻌㼠㼑㼏㼔㼚㼛㼘㼛㼓㼥㻌㼡㼟㼕㼚㼓㻌㻴㼀㻿㻌㼙㼍㼠㼑㼞㼕㼍㼘㼟㻧㻌 㻌㻲㼛㼞㻌㼍㼏㼔㼕㼑㼢㼑㼙㼑㼚㼠㻌㼛㼒㻌㻴㼀㻿㻌㼏㼛㼕㼘㻌㼣㼕㼠㼔㻌㼔㼕㼓㼔㻌㼛㼜㼑㼞㼍㼠㼕㼚㼓㻌㼏㼡㼞㼞㼑㼚㼠㻌㼐㼑㼚㼟㼕㼠㼥㻌㻔㻝㻕㻌 㻌㻙㻌㻲㼍㼎㼞㼕㼏㼍㼠㼕㼛㼚㻌㼛㼒㻌㻾㻱㻮㻯㻻㻌㻏㻝㻌㼍㼚㼐㻌㻏㻞㻌㼏㼛㼕㼘㼟㻌㼒㼛㼞㻌㼠㼑㼟㼠㼟㻌㼡㼚㼐㼑㼞㻌㼑㼘㼑㼏㼠㼞㼛㻙㼙㼍㼓㼚㼑㼠㼕㼏㻌㼒㼛㼞㼏㼑㼟㻌㻙㻌ᯇᮏ ┿἞䠈ᓲ㻌 ୡ㙎䠈ᮌྜྷ㻌 ྖ䠄≀ᮦᶵᵓ䠅䠗኱ሯ㻌 㻌 ᫛ᘯ䠈℈⏣㻌 㻌 ⾨䠄㻶㻭㻿㼀㻱㻯䠅䠗㻌๓⏣㻌 ⚽᫂䠄⌮◊䠅䠗ᰗ⃝㻌 ྜྷ⣖䠈୰㎸㻌 ⚽ᶞ䠄༓ⴥ኱Ꮫ䠅䠗ᮎᯇ㻌 ᾈே䠄᪥ᮏ㟁Ꮚ䠅㻌㻹㻭㼀㻿㼁㻹㻻㼀㻻㻌㻿㼔㼕㼚㼖㼕㻘㻌㻯㻴㻻㻵㻌㻿㼑㼥㼛㼚㼓㻘㻌㻷㻵㼅㻻㻿㻴㻵㻌㼀㼟㼡㼗㼍㼟㼍㻌㻔㻺㻵㻹㻿㻕㻧㻌㻻㼀㻿㼁㻷㻭㻌 㻌 㻭㼗㼕㼔㼕㼞㼛㻘㻌㻴㻭㻹㻭㻰㻭㻌 㻌 㻹㼍㼙㼛㼞㼡㻌㻔㻶㻭㻿㼀㻱㻯㻕㻧㻌 㻌㻹㻭㻱㻰㻭㻌㻴㼕㼐㼑㼍㼗㼕㻌㻔㻾㼕㼗㼑㼚㻕㻧㻌㼅㻭㻺㻭㻳㻵㻿㻭㼃㻭㻌㼅㼛㼟㼔㼕㼚㼛㼞㼕㻘㻌㻺㻭㻷㻭㻳㻻㻹㻱㻌㻴㼕㼐㼑㼗㼕㻌㻔㻯㼔㼕㼎㼍㻌㼁㼚㼕㼢㻚㻕㻘㻌㻿㼁㻱㻹㻭㼀㻿㼁㻌㻴㼕㼞㼛㼠㼛㻌㻔㻶㻱㻻㻸㻌㻸㼠㼐㻚㻕㻌 㻌㻱㻙㼙㼍㼕㼘㻦㻌㼙㼍㼠㼟㼡㼙㼛㼠㼛㻚㼟㼔㼕㼚㼖㼕㻬㼚㼕㼙㼟㻚㼓㼛㻚㼖㼜㻌㻝䠊䛿䛨䜑䛻㻌
⛉Ꮫᢏ⾡᣺⯆ᶵᵓ⏘Ꮫ䜲䝜䝧䞊䝅䝵䞁ຍ㏿஦ᴗ䛂ᡓ␎ⓗ䜲䝜䝧䞊䝅䝵䞁๰ฟ᥎㐍䛃◊✲㛤Ⓨ䝔䞊䝬䛂㉸ఏᑟ䝅䝇䝔䝮䛻䜘䜛ඛ㐍䜶䝛䝹䜼䞊䞉䜶䝺䜽䝖䝻䝙䜽䝇⏘ᴗ䛾๰ฟ䛃䛻䛚䛔䛶䚸䝥䝻䝆䜵䜽䝖䛂㧗 ㉸ఏᑟᮦᩱ䜢฼⏝䛧䛯ḟୡ௦䠪䠩䠮ᢏ⾡䛾
㛤Ⓨ䛃䜢㐙⾜䛧䛶䛔䜛䚹䝥䝻䝆䜵䜽䝖䛷䛿䚸㉸ఏᑟ䝬䜾䝛䝑䝖䛚䜘䜃䝥䝻䞊䝤䠄᳨ฟჾ䠅䛻㧗 ㉸ఏᑟᮦᩱ䜢㐺⏝䛩䜛䛣䛸䛷䚸ᛶ⬟䛸฼౽ᛶ䜢኱ᖜ䛻ྥୖ䛥䛫䛯ḟୡ௦䠪䠩䠮䝅䝇䝔䝮䛾㛤Ⓨ䜢┠ᣦ䛧䛶䛔䜛㻌 㼇㻝㼉䚹┠ᶆ䛷䛒䜛䚸㧗 ㉸ఏᑟ⥺ᮦ䛛䜙䛺䜛㻢㻜㻜㻹㻴㼦㻔㻝㻠㼀㻕㻙䠪䠩䠮䝬䜾䝛䝑䝖䜢㛤Ⓨ䛩䜛䛯䜑䚸䛭䛾ᇶ┙䛸䛺䜛䠮䠡⣔⥺ᮦ䛾䝁䜲䝹໬ᢏ⾡䛾ᵓ⠏䜢⾜䛳䛶䛔䜛䚹䠮䠡⣔⥺ᮦ䛿䚸௚䛾㉸ఏᑟ⥺ᮦ䛸ẚ㍑䛧䛶䚸⥺ᮦ䛸䛧䛶䛾㧗䛔⮫⏺㟁ὶᐦᗘ䛸㧗䛔⪏ᘬᙇᛂຊ≉ᛶ䜢ᣢ䛴䚹䜘䛳䛶䚸䠪䠩䠮䝬䜾䝛䝑䝖䛾䝁䞁䝟䜽䝖໬䛜ᮇᚅ䛷䛝䜛䚹䝬䜾䝛䝑䝖䛾䝁䞁䝟䜽䝖໬䛿䚸䝬䜾䝛䝑䝖䛜༨᭷䛩䜛✵㛫䛾㍍ῶ䛻⧅䛜䜚䚸ᐇ⏝ୖ䚸ᴟ䜑䛶㔜せ䛷䛒䜛䚹㻌
䠪䠩䠮䝬䜾䝛䝑䝖⏝䛾䠮䠡⣔⥺ᮦ䛾䝁䜲䝹໬ᢏ⾡ᵓ⠏䛾䛯䜑䛻䛿䚸䝁䜲䝹䛾ᑐ㟁☢ຊ≉ᛶ䜢᳨ド䛩䜛ᚲせ䛜䛒䜛䚹䛭䛣䛷䚸ホ౯⏝䠮䠡䠞䠟䠫䝁䜲䝹䜢〇స䛧䚸㻝㻣㻚㻞㻌 㼀 䛾༳ຍ☢ሙ୰䛷
㏻㟁ヨ㦂䜢⾜䛖䛣䛸䛷ᑐ㟁☢ຊ≉ᛶ䜢ホ౯䛧䛯䚹㻌㻞䠊㟁☢ຊホ౯⏝䝁䜲䝹〇స㻌㟁☢ຊ≉ᛶ䛿䚸┤ᚄ 㻝㻟㻥㻌㼙㼙 䝁䞊䝹䝗䝪䜰୰䛻䚸㻝㻣㻚㻞㻌㼀 䜢Ⓨ⏕䛥䛫䜛㉸ఏᑟ䝬䜾䝛䝑䝖䜢⏝䛔䛶⾜䛳䛯䚹⌧ᅾධᡭྍ⬟䛺䠮䠡䠞䠟䠫⥺ᮦ䛾䛖䛱䚸㠀☢ᛶ䛾 㻴㻭㻿㼀㻱㻸㻸㻻㼅䒆ᇶᯈ䜢ᣢ䛴䜒䛾䜢౑⏝䛧䚸㟁☢ຊホ౯⏝䠮䠡䠞䠟䠫䝁䜲䝹䠄㻏㻝㻘㻏㻞䠅䜢〇స䛧䛯䚹ྛ䝁䜲䝹䛾ㅖඖ䜢 㼀㻭㻮㻸㻱㻌 㻵 䛻♧䛩䚹䝁䜲䝹㻏㻝 䛿䚸᭱እᒙ䠄➨䠔ᒙ䠅䛾㏵୰䛷⥺ᮦ䛜୙㊊䛧䛯䛯䜑䚸⥺ᮦ䜢䛿䜣䛰᥋⥆䛧ᘏ㛗䛧䛯䚹䝁䜲䝹䛾ᕳ⥺᪉ἲ䛿䚸䠪䠩䠮䝬䜾䝛䝑䝖䜈䛾ᛂ⏝䜢⪃䛘䚸☢ሙᆒ୍ᗘ䛻ඃ䜜䚸㧗䛔⥺ᮦ඘ሸ⋡䜢ᚓ䜛䛣䛸䜢ᮇᚅ䛷䛝䜛䝺䜲䝲䞊ᕳ䜢᥇⏝䛧䛯䚹䝔䞊䝥⥺ᮦ䛾䝺䜲䝲䞊ᕳ䛻䜘䜛䝁䜲䝹໬䛿䚸䛣䜜䜎䛷䛾 㻮㼕 ⣔⥺ᮦ䛷䛾〇సᐇ⦼䛛䜙䜒ྍ⬟䛷䛒䜛䛸ุ᩿䛧䛯䚹ホ౯⏝䠮䠡䠞䠟䠫䝁䜲䝹䛾ヨ㦂⤖ᯝ䛻䛴䛔䛶䛿䚸ḟㅮ₇㼇㻞㼉䛻䛚䛔䛶䜒ሗ࿌䛩䜛䛜䚸䝁䜲䝹㻏㻝 䛿ヨ㦂୰䛻⥺ᮦ䛜⁐᩿䛧䛯䚹䛣䛾⁐᩿䛿䚸⥺ᮦ䛾᥋⥆㒊䛷䛿⏕䛨䛶䛚䜙䛪䚸䝁䜲䝹➃௜㏆䛷Ⓨ⏕䛧䛶䛔䛯䚹୍᪉䚸䝁䜲䝹㻏㻞 䛿䚸㻠㻜㻜㻌 㻭 䜎䛷
䛾㏻㟁ヨ㦂䛻ᡂຌ䛧䛯䚹㻌ㅰ㎡㻌
㻌 ᮏ◊✲䛿䚸⏘Ꮫ䜲䝜䝧䞊䝅䝵䞁ຍ㏿஦ᴗ䛂ᡓ␎ⓗ䜲䝜䝧䞊䝅䝵䞁๰ฟ᥎㐍䛃䛸䛧䛶䚸⛉Ꮫᢏ⾡᣺⯆ᶵᵓ䛛䜙䛾ጤク䛻䜘䜚ᐇ᪋䛧䛯䜒䛾䛷䛒䜛䚹㻌ཧ⪃ᩥ⊩㻌㻝㻚㻌 㻴㻚㻌㻿㼡㼑㼙㼍㼠㼟㼡㻦㻌㻭㼎㼟㼠㼞㼍㼏㼠㼟㻌㼛㼒㻌㻯㻿㻶㻌㻯㼛㼚㼒㼑㼞㼑㼚㼏㼑㻘㻌㼂㼛㼘㻚㻌㻤㻞㻌㻔㻞㻜㻝㻜㻕㻌㼜㻚㻝㻤㻡㻌㻞㻚㻌 㻿㻚㻌㻹㼍㼠㼟㼡㼙㼛㼠㼛㻌㼑㼠㻌㼍㼘㻚㻦㻌㻭㼎㼟㼠㼞㼍㼏㼠㼟㻌㼛㼒㻌㻯㻿㻶㻌㻯㼛㼚㼒㼑㼞㼑㼚㼏㼑㻘㻌㼂㼛㼘㻚㻌㻤㻟㻌㻔㻞㻜㻝㻜㻕㻌㻝㻯㻙㼜㻜㻟㻌TABLE I PARAMETERS OF LAYER WINDING
REBCO COILS #1, #2
REBCO#1
DesignConductor/Supplier

ResultREBCO/SuperPower Inc.

Conductor Width×Thickness

4.00 mm × 0.11 mm

Insulated Conductor Width×Thickness

4.10 mm × 0.21 mm

Winding Type

Layer

Layer

Coil Inner Diameter

80.0 mm79.1 mm

Coil Outer Diameter

83.36 mm82.5 mm

Coil Height100.0 mm

98.44 mm

Total Layers

8 layers

8 layers

Total Turns

184 turns

179 turns

Conductor Length47.22 m45.45 m (*1)

0.7163 T

0.7064 T (*4)

Impregnation

Wax

Central Magnetic Field (*2)
Maximum Magnetic Field (*3)

18.026 T

18.015 T (*4)

Maximum BJR (*3)

661.8 MPa646.9 MPa (*4)

Current Density/Coil (*2)

438.1 A/mm2

415.61 A/mm2

909.1 A/mm2

Current Density/Conductor (*2)
REBCO#2

DesignResultConductor/Supplier

GdBCO/Fujikura Ltd.

Conductor Width × Thickness

5.00 mm × 0.22 mm

Insulated Conductor Width × Thickness

5.10 mm × 0.32 mm

Winding Type

Layer

Layer

Coil Inner Diameter

80.0 mm79.0 mm

Coil Outer Diameter

86.40 mm85.30 mm

Coil Height100.0 mm100.54 mm

Total Layers

10 layers

10 layers

Total Turns

180 turns

186 turns

Conductor Length47.05 m48.02 m0.6955 T

0.7200 T (*4)

Impregnation

Wax

Central Magnetic Field (*2)
Maximum Magnetic Field (*3)

18.004 T

18.027 T (*4)

Maximum BJR (*3)

274.3 MPa

262.0 MPa (*4)

Current Density/Coil (*2)

225.0 A/mm2

234.9 A/mm2

363.6 A/mm2

Current Density/Conductor (*2)(*1) joint in the 8th layer(*2) operating current of 400 A.
(*3) operating current of 400 A; backup field of 17.2 T(*4) estimation― 60 ―

第83回

2010年度秋季低温工学・超電導学会

1C-p03㧗

NMR / 医療㉸ఏᑟᮦᩱ䜢฼⏝䛧䛯ḟୡ௦ 㻺㻹㻾 ᢏ⾡䛾㛤Ⓨ䠗㧗㟁ὶᐦᗘ䝁䜲䝹໬ᢏ⾡䛾ᵓ⠏䠄䠎䠅䇷㟁☢ຊホ౯⏝ 㻾㻱㻮㻯㻻 䝁䜲䝹㻏㻝㻘㻌㻏㻞 䛾ヨ㦂⤖ᯝ䇷㻌㻰㼑㼢㼑㼘㼛㼜㼙㼑㼚㼠㻌㼛㼒㻌㼠㼔㼑㻌㼚㼑㼤㼠㻙㼓㼑㼚㼑㼞㼍㼠㼕㼛㼚㻌㻺㻹㻾㻌㼠㼑㼏㼔㼚㼛㼘㼛㼓㼥㻌㼡㼟㼕㼚㼓㻌㻴㼀㻿㻌㼙㼍㼠㼑㼞㼕㼍㼘㼟㻧㻌 㻌㻲㼛㼞㻌㼍㼏㼔㼕㼑㼢㼑㼙㼑㼚㼠㻌㼛㼒㻌㻴㼀㻿㻌㼏㼛㼕㼘㻌㼣㼕㼠㼔㻌㼔㼕㼓㼔㻌㼛㼜㼑㼞㼍㼠㼕㼚㼓㻌㼏㼡㼞㼞㼑㼚㼠㻌㼐㼑㼚㼟㼕㼠㼥㻌㻔㻞㻕㻌 㻌㻙㻌㻱㼤㼜㼑㼞㼕㼙㼑㼚㼠㼍㼘㻌㼞㼑㼟㼡㼘㼠㼟㻌㼛㼒㻌㻾㻱㻮㻯㻻㻌㻏㻝㻌㼍㼚㼐㻌㻏㻞㻌㼏㼛㼕㼘㼟㻌㼡㼚㼐㼑㼞㻌㼑㼘㼑㼏㼠㼞㼛㻙㼙㼍㼓㼚㼑㼠㼕㼏㻌㼒㼛㼞㼏㼑㼟㻌㻙㻌

Coil Voltage [ mV ]㻌ᯇᮏ㻌 ┿἞䠈ᓲ㻌 ୡ㙎䠈ᮌྜྷ㻌 ྖ䠄≀ᮦᶵᵓ䠅䠗኱ሯ㻌 㻌 ᫛ᘯ䠈℈⏣㻌 㻌 ⾨䠄㻶㻭㻿㼀㻱㻯䠅䠗㻌๓⏣㻌 ⚽᫂䠄⌮◊䠅䠗ᰗ⃝㻌 ྜྷ⣖䠈୰㎸㻌 ⚽ᶞ䠄༓ⴥ኱Ꮫ䠅䠗ᮎᯇ㻌 ᾈே䠄᪥ᮏ㟁Ꮚ䠅㻌㻹㻭㼀㻿㼁㻹㻻㼀㻻㻌㻿㼔㼕㼚㼖㼕㻘㻌㻯㻴㻻㻵㻌㻿㼑㼥㼛㼚㼓㻘㻌㻷㻵㼅㻻㻿㻴㻵㻌㼀㼟㼡㼗㼍㼟㼍㻌㻔㻺㻵㻹㻿㻕㻧㻌㻻㼀㻿㼁㻷㻭㻌 㻌 㻭㼗㼕㼔㼕㼞㼛㻘㻌㻴㻭㻹㻭㻰㻭㻌 㻌 㻹㼍㼙㼛㼞㼡㻌㻔㻶㻭㻿㼀㻱㻯㻕㻧㻌 㻌㻹㻭㻱㻰㻭㻌㻴㼕㼐㼑㼍㼗㼕㻌㻔㻾㼕㼗㼑㼚㻕㻧㻌㼅㻭㻺㻭㻳㻵㻿㻭㼃㻭㻌㼅㼛㼟㼔㼕㼚㼛㼞㼕㻘㻌㻺㻭㻷㻭㻳㻻㻹㻱㻌㻴㼕㼐㼑㼗㼕㻌㻔㻯㼔㼕㼎㼍㻌㼁㼚㼕㼢㻚㻕㻘㻌㻿㼁㻱㻹㻭㼀㻿㼁㻌㻴㼕㼞㼛㼠㼛㻌㻔㻶㻱㻻㻸㻌㻸㼠㼐㻚㻕㻌㻱㻙㼙㼍㼕㼘㻦㻌㼙㼍㼠㼟㼡㼙㼛㼠㼛㻚㼟㼔㼕㼚㼖㼕㻬㼚㼕㼙㼟㻚㼓㼛㻚㼖㼜㻌㻌㻝䠊䛿䛨䜑䛻㻌
⛉Ꮫᢏ⾡᣺⯆ᶵᵓ⏘Ꮫ䜲䝜䝧䞊䝅䝵䞁ຍ㏿஦ᴗ䛂ᡓ␎ⓗ
6 (a) REBCO#1;B =17.2T
ex䜲䝜䝧䞊䝅䝵䞁๰ฟ᥎㐍䛃◊✲㛤Ⓨ䝔䞊䝬䛂㉸ఏᑟ䝅䝇䝔䝮䛻䜘䜛ඛ㐍䜶䝛䝹䜼䞊䞉䜶䝺䜽䝖䝻䝙䜽䝇⏘ᴗ䛾๰ฟ䛃䛻䛚䛔䛶䚸
4䝥䝻䝆䜵䜽䝖䛂㧗 ㉸ఏᑟᮦᩱ䜢฼⏝䛧䛯ḟୡ௦䠪䠩䠮ᢏ⾡䛾
㛤Ⓨ䛃䜢㐙⾜䛧䛶䛔䜛䚹䝥䝻䝆䜵䜽䝖䛷䛿䚸㉸ఏᑟ䝬䜾䝛䝑䝖䛚
2䜘䜃䝥䝻䞊䝤䠄᳨ฟჾ䠅䛻㧗 ㉸ఏᑟᮦᩱ䜢㐺⏝䛩䜛䛣䛸䛷䚸ᛶ⬟䛸฼౽ᛶ䜢኱ᖜ䛻ྥୖ䛥䛫䛯ḟୡ௦䠪䠩䠮䝅䝇䝔䝮䛾㛤Ⓨ䜢┠ᣦ䛧䛶䛔䜛㻌 㼇㻝㼉䚹๓ㅮ₇㼇㻞㼉䛷♧䛧䛯䚸䠎✀㢮䛾䠮䠡䠞䠟䠫
0
6 (b) REBCO#1;B =10T⥺ᮦ䜢౑⏝䛧〇స䛧䛯㟁☢ຊホ౯⏝䠮䠡䠞䠟䠫䝁䜲䝹㏻㟁ヨex㦂⤖ᯝ䛻䛴䛔䛶ሗ࿌䛩䜛䚹㻌
Quench:353A
㻌
4㻞䠊䝁䜲䝹ヨ㦂⤖ᯝ㻌䝁䜲䝹䛾䝻䞊䝗䝷䜲䞁䜢 㻲㼕㼓㻚㻝 䛻♧䛩䚹䠮䠡䠞㻯㻻 ⥺ᮦ䛾⮫⏺
2㟁ὶ䛿䚸༳ຍ☢ሙ䛾ᙉᗘ䛸ゅᗘ䛻౫Ꮡ䛩䜛䛯䜑䚸䝁䜲䝹䛾⮫⏺㟁ὶ䛿䚸䝁䜲䝹ෆ㒊䛻䛚䛡䜛☢ሙᙉᗘ䛸☢ሙ䛾䝔䞊䝥㠃䛻0ᑐ䛩䜛༳ຍゅᗘ䜢⪃៖䛩䜛ᚲせ䛜䛒䜛䚹䝻䞊䝗䝷䜲䞁䛿䚸ᕳ⥺
6 (c) REBCO#2;B =17.2T
exᐇ⦼䛻䜘䜛䝁䜲䝹䝟䝷䝯䞊䝍䛻䜘䜚䚸㏻㟁㟁ὶ䜢 㻠㻜㻜㻌 㻭 䛻タᐃ䛧ồ䜑䛯䜒䛾䛷䛒䜛䚹☢ሙ᪉ྥ䛿䚸䝔䞊䝥㠃䛛䜙 㻞㻚㻣㼻䠄䠮䠡䠞
4䠟䠫䝁䜲䝹㻏㻝䠅䛚䜘䜃 㻞㻚㻡㼻䠄䠮䠡䠞䠟䠫䝁䜲䝹㻏㻞䠅䛷䛒䛳䛯䚹༳ຍ☢ሙ 㻮㼑㼤 䛸㏻㟁㟁ὶ 㻵㼛㼜 䛾᮲௳䜢䚸㻔㻮㼑㼤㼇㼀㼉㻧㻵㼛㼜㼇㻭㼉㻕㻩㻔㻜㻧㻠㻜㻜㻕䊻㻔㻝㻜㻧㻝㻜㻜㻕䊻㻔㻝㻣㻚㻞㻧㻠㻜㻜㻕䊻㻔㻝㻜㻧㻠㻜㻜㻕䛸㡰ḟኚ䛘䛺䛜䜙䚸䝁䜲䝹㻏㻝
2䛚䜘䜃䝁䜲䝹㻏㻞 䛾㏻㟁ヨ㦂䜢⾜䛳䛯䚹㻠㻜㻜㻌 㻭 䛿౑⏝䛧䛯䝥䝻䞊䝤䛾チᐜ㟁ὶ䛷䛒䜛䚹㻌
0
0
100
200
300
400
䝁䜲䝹㻏㻝 䛿䚸㻮㼑㼤㻩㻝㻣㻚㻞㻌 㼀 䛾༳ຍ☢ሙ୰䛷䛾㏻㟁ヨ㦂䛻䛚䛔䛶䚸㻞㻜㻜㻌 㻭 ௜㏆䛷䝁䜲䝹㟁ᅽ䛾ୖ᪼ഴྥ䛜ぢ䜙䜜䛯䛯䜑䚸
Operating Current [ A ]᮲௳䛾 㻠㻜㻜㻌 㻭 䜎䛷䛾㏻㟁䛿⾜䜟䛺䛛䛳䛯䚹䛭䛾ᚋ䚸㻮㼑㼤㻩㻝㻜㻌 㼀
Fig.2 Coil voltage of REBCO coil (a) #1 at B =17.2
exT, (b) #1 at Bex=10 T, and (c) #2 Bex=17.2 .T. REBCO
coil #1 quenched at Iop=353 A and the conductor was
fused.

1200
REBCO#2

1000
REBCO#1
Current [ A ]

800
600
400
200
0
15

16

17

18

19

Magnetic Field [ T ]Fig.1 Load lines of REBCO coils #1 and #2.

20䛾༳ຍ☢ሙ୰䛷䛾㏻㟁ヨ㦂୰䛻䚸㻟㻡㻟㻌 㻭 䛷䜽䜶䞁䝏䛧䚸䛭䛾ᚋ䝁䜲䝹䜢᳨ド䛧䛯䛸䛣䜝䚸⥺ᮦ䛜⁐᩿䛧䛶䛔䜛䛣䛸䛜ุ䛳䛯䚹㻌 㻌 㻌 㻌 㻌䝁䜲䝹䜢ᕳ䛝ᡠ䛧䛶ほᐹ䛧䛯䛸䛣䜝䚸䝁䜲䝹䛾➃㒊䛻⥺ᮦ䛾พ䜏䛜ぢ䜙䜜䛯䚹䝁䜲䝹〇స㐣⛬䛻䛚䛔䛶⥺ᮦ䛻䝎䝯䞊䝆䜢୚䛘䚸䜽䜶䞁䝏䛾୍ᅉ䛸䛺䛳䛯ྍ⬟ᛶ䛜䛒䜛䚹䝁䜲䝹㻏㻞 䛿䚸㻮㼑㼤㻩㻝㻣㻚㻞㻌㼀 䛾༳ຍ☢ሙ୰䛷 㻠㻜㻜㻌㻭 䜎䛷㏻㟁䛩䜛䛣䛸䛜䛷䛝䛯䚹㻌㻌ㅰ㎡㻌
㻌 ᮏ◊✲䛿䚸⏘Ꮫ䜲䝜䝧䞊䝅䝵䞁ຍ㏿஦ᴗ䛂ᡓ␎ⓗ䜲䝜䝧䞊䝅䝵䞁๰ฟ᥎㐍䛃䛸䛧䛶䚸⛉Ꮫᢏ⾡᣺⯆ᶵᵓ䛛䜙䛾ጤク䛻䜘䜚ᐇ᪋䛧䛯䜒䛾䛷䛒䜛䚹㻌㻌ཧ⪃ᩥ⊩㻌㻝㻚㻌 㻴㻚㻌㻿㼡㼑㼙㼍㼠㼟㼡㻦㻌㻭㼎㼟㼠㼞㼍㼏㼠㼟㻌㼛㼒㻌㻯㻿㻶㻌㻯㼛㼚㼒㼑㼞㼑㼚㼏㼑㻘㻌㼂㼛㼘㻚㻌㻤㻞㻌㻔㻞㻜㻝㻜㻕㻌㼜㻚㻝㻤㻡㻌㻞㻚㻌 㻿㻚㻌㻹㼍㼠㼟㼡㼙㼛㼠㼛㻌㼑㼠㻌㼍㼘㻚㻦㻌㻭㼎㼟㼠㼞㼍㼏㼠㼟㻌㼛㼒㻌㻯㻿㻶㻌㻯㼛㼚㼒㼑㼞㼑㼚㼏㼑㻘㻌㼂㼛㼘㻚㻌㻤㻟㻌㻔㻞㻜㻝㻜㻕㻌㻝㻯㻙㼜㻜㻞㻌― 61 ―

第83回

2010年度秋季低温工学・超電導学会

1C-p04✚ᒙᵓ㐀㧗

NMR / 医療㉸㟁ᑟ䝞䝹䜽య䜢⏝䛔䜛ᑠᆺ 㻺㻹㻾 ⏝㧗☢⏺Ⓨ⏕⏝䝬䜾䝛䝑䝖䛾㻌ᤕᤊ☢ሙ≉ᛶ䛻㛵䛩䜛◊✲Study on characteristics of the trapped magnetic field of stacked HTS bulk magnets
for compact NMR device௒஭㻌 ㄹ䠈ᮌᮏ㻌 ᩗ❶䠈▮㔝㻌 㡰୍㻘㻌 㔠㻌 㘏⠊䠄ᒸᒣ኱Ꮫ䠅㻌
Makoto Imai, Takaaki Kimoto, Yorikazu Yano, SeokBeom Kim㻌(Okayama University)
kim@elec.okayama-u.ac.jpࡧෆ㒊☢ሙࡢศᕸ࡟ࡘ࠸࡚ࡣ㸪㧗ឤᗘ ᐃྍ⬟࡞࣮࣍ࣝ⣲Ꮚ࡜ࣃࢯࢥࣥ࡟ࡼࡾไᚚྍ⬟࡞ 3 ㍈ࢫࢸ࣮ࢪࢆ⏝࠸ࡿࡇ࡜࡛㧗⢭ᗘࡢ☢ሙศᕸ ᐃࢆ⾜ࡗࡓ㸬ᅗ 2 ࡣࣂࣝࢡయ
㧗ࡉ᪉ྥ☢ሙศᕸࡢ ᐃ⤖ᯝࢆ♧ࡍ㸬ࡲࡓࠊᅗ 2 ࡟ࡣẚ
㍑ࡢࡓࡵཌࡳ 20mm ࡢ༢୍ࣂࣝࢡయ(Bulk E)ࡢ㧗ࡉ᪉ྥ☢
ሙศᕸࢆ࠶ࢃࡏ࡚♧ࡋ࡚࠸ࡿ㸬ᅗ 2 ࠿ࡽ☢ሙᙉᗘ࡟࠾࠸
࡚ࡣࢠࣕࢵࣉ࡞ࡋࡢሙྜࡀࢠࣕࢵࣉ࠶ࡾࡢሙྜ࡟ẚ࡭࡚㧗࠸ࡶࡢࡢ㸪㧗ࡉ᪉ྥ࡬ࡢ☢ሙᙉᗘศᕸࡢᖹ⁥ᗘࡣࢠࣕࢵࣉࢆタࡅࡓ᪉ࡀྥୖࡉࢀ࡚࠸ࡿ㸬ࡇࢀࡢཎᅉ࡜ࡋ࡚ࡣ㸪ࣂࣝࢡయ㛫ࡢࢠࣕࢵࣉࢆタࡅࡿࡇ࡜࡛࣐ࢢࢿࢵࢺࡢ㧗ࡉࡀ┦ᑐⓗ࡟ఙ㛗ࡋࡓࡇ࡜࡜ඹ࡟ࣂࣝࢡయࡀ㞳ࢀ࡚㓄⨨ࡉࢀࡿࡇ࡜࡟ࡼࡗ࡚☢ሙ⿵ṇຠᯝࡀྠ᫬࡟⾜ࢃࢀࡓࡓࡵ࡛
࠶ࡿ࡜⪃࠼ࡽࢀࡿ㸬ࡋ࠿ࡋ࡞ࡀࡽ㸪✚ᒙࣂࣝࢡయࡢྛࠎ
ࡢ☢ሙᤕᤊ⬟ຊࢆ⪃៖ࡍࡿ࡜㸪㸲ಶ✚ᒙࡋࡓሙྜࡣ㸪༳ຍ☢ሙ࡛࠶ࡿ 2 T ⛬ᗘࡢ☢ሙᙉᗘࢆᤕᤊࡍࡿࡣࡎ࡛࠶ࡿ
ࡀࠊᐇ㝿ࡢ☢ሙᙉᗘࡣ⣙ 1.60 T ࡋ࠿ᚓࡽࢀ࡚࡞࠸㸬ࡇࡢཎᅉ࡜ࡋ࡚ࡣ㸪ࣂࣝࢡయࡢཌࡳࡀⷧ࠸ࡓࡵ┦ᑐⓗ࡞ࣆࣥࢽࣥࢢຊࡀᙅࡃ㸪⮫⏺㟁ὶᐦᗘࡢ☢ሙ౫Ꮡᛶࡀప࠸ࡓࡵ
࡛࠶ࡿ࡜⪃࠼ࡽࢀࡿ㸬ࡑࡢ⤖ᯝ㸪☢ሙศᕸࡢᖹ⁥ᗘࡶ Bulk
E ࡟ẚ࡭࡚ᝏࡃ࡞ࡗ࡚࠸ࡿ㸬



䃥20mm

60mm 䃥

Bulk A

5mm

Bulk B

5mm

Bulk C

5mm

Bulk D5mm

20mm 䃥

Gap =0, 5mm

z=10mmBulk A
Bulk B
Bulk
Bulk DC
Bulk D

5mm

z=0mm

5mm
5mm

B

5mm

z=-10mm

Gap =0, 5mm

Gap =0, 5mm

䃥60mm

D  E )LJ  D 7RVFDOHG VFKHPDWLF GUDZLQJ RI D IRXUVWDFNHG +76 EXON PDJQHW D  DQG YDULRXV D[LDO JDSOHQJWKEHWZHHQWKHEXONV E 
㻌

1.7
1.6
1.5
1.4
1.3
1.2
1.1
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
-20

Stacked Bulk (Gap 0mm)
Stacked Bulk (Gap 5mm)
Single Bulk (Bulk A)
Single Bulk (Bulk E)

-15

-10

-5

0

5

10

㻌

䛿䛨䜑䛻㻌
㏆ᖺ㸪᰾☢Ẽඹ㬆ศගἲ㸦NMR㸧ࡣࢱࣥࣃࢡ㉁ࡢᵓ㐀ゎᯒ࡟᭷⏝࡞ࢶ࣮ࣝ࡜ࡋ࡚㣗ရࡸ་⒪ศ㔝࡛ὀ┠ࡉࢀ࡚࠾ࡾ㸪᭱㏆ࡣ㸪㔠ᒓ⣔࠾ࡼࡧ㓟໬≀⣔㉸㟁ᑟ⥺ᮦࢆ⏝࠸ࡓ㉸㟁ᑟ࣐ࢢࢿࢵࢺ࡟ࡼࡿ GHz ⣭ࡢ 105 ⿦⨨ࡀ㛤Ⓨࡉࢀ࡚࠸ࡿ㸬ࡋ࠿ࡋ࡞ࡀࡽ㸪᪤Ꮡࡢ NMR ⿦⨨ࡣ㸪ࡲࡔ㠀ᖖ࡟㧗౯࣭኱ᆺ࡛࠶ࡿࡓࡵ࡟኱ࡁ࠸⑓㝔ࡸ◊✲ᡤ㸪኱Ꮫ࡞࡝࡛タ⨨ࡉࢀ࡚ࡣ࠸ࡿࡶࡢࡢಶேࡀ⮬⏤࡟౑࠼ࡿ⿦⨨࡜ࡣゝ࠼࡞࠸ࡢࡀ⌧≧࡛࠶ࡿ㸬ࡶࡋ㸪Ᏻ౯࣭ᑠᆺ࡛㸪ࡉࡽ࡟⡆౽࡞᪉ἲ࡛౑࠼ࡿ NMR ⿦⨨ࡀ㛤Ⓨࡉࢀ㸪◊✲ᐊࡈ࡜㸪ࡲࡓࡣྛಶேࡀ⮬⏤࡟౑࠼ࡿࡼ࠺࡟࡞ࡿ࡜㸪㧗ᛶ⬟ NMR
デ᩿⿦⨨࡛ ᐃࡍࡿ๓ࡢᇶ♏デ᩿ࡸุ᩿࡞࡝ࡀྍ⬟࡜࡞ࡿࡓࡵ㸪་Ꮫศ㔝ࡸ㣗ရ㛤Ⓨ࡞࡝ᖜᗈ࠸ศ㔝࡟࠾࠸࡚ᛴ
㏿࡞㐍ᒎࡀᚓࡽࢀࡿ࡜⪃࠼ࡽࢀࡿ㸬ࡇࢀࡲ࡛ࡢ◊✲࡟ࡼࡾ㸪」ᩘࣂࣝࢡయࢆ✚ᒙࣂࣝࢡᵓ㐀࡟ࡍࡿࡇ࡜࡟ࡼࡾ㸪㧗ᙉᗘ࡛✵㛫ᆒ୍ᗘࡢඃࢀࡓ☢ሙࢆⓎ⏕ྍ⬟࡛࠶ࡿࡇ࡜
ࡀศ࠿ࡗ࡚࠸ࡿ㸬ࡲࡓࣂࣝࢡ㛫࡟ࢠࣕࢵࣉࢆタࡅࡿࡇ࡜࡟ࡼࡾ࣐ࢢࢿࢵࢺࡀఙ㛗ࡋ㸪✵㛫☢ሙᆒ୍ᗘࡀྥୖࡍࡿ㸬ࡑࡇ࡛ࠊᮏ◊✲࡛ࡣࠊཌࡳࡀⷧ࠸㸦5 mm㸧」ᩘࡢ㧗 ㉸㟁ᑟࣂࣝࢡయࢆ⏝࠸࡚㸪ヨᩱ ᐃ✵㛫࡛ࡢ☢ሙᆒ୍ᗘࢆ
ྥୖࡉࡏࡿࡓࡵࡢ✚ᒙᵓ㐀ࡢ᭱㐺໬ࢆᅗࡿࡓࡵࡢࣂࣝࢡ
య㛫ࡢࢠࣕࢵࣉ౫Ꮡᛶ࡟ࡘ࠸࡚ᐇ㦂ࢆ⾜࠸㸪ࡲࡓ㸪ᩘ್ゎᯒ࡜ࡢẚ㍑࡟ࡼࡿ᳨ウࢆ⾜ࡗࡓࡢ࡛ࠊࡑࡢ⤖ᯝ࡟ࡘ࠸࡚ሗ࿌ࡍࡿࠋ
㻞㻚 ᑠᆺ 㻺㻹㻾 ⏝䝬䜾䝛䝑䝖䛾ᴫせ㻌 ᮏ◊✲࡛㛤Ⓨࡍࡿ NMR ⿦⨨ࡣࠊ㓟໬≀㉸㟁ᑟయࡢᙉຊ
࡞ᤕᤊ☢ሙࢆ฼⏝ࡍࡿࡶࡢ࡛࠶ࡾࠊ㧗 ㉸㟁ᑟࣂࣝࢡయ
ࡲࡓࡣࠊ㧗 ㉸㟁ᑟⷧ⭷ࢆ✚ᒙᵓ㐀࡟ࡋࡓ࣐ࢢࢿࢵࢺࢆᑠᆺప ᐜჾ࡟ᤄධࡋࠊప ᐜჾࢆእ㒊☢ሙ༳ຍ⿦⨨࡛࠶ࡿບ☢⏝㉸㟁ᑟ࣐ࢢࢿࢵࢺࡢᐊ ✵㛫࡟㓄⨨ࡋ࡚☢ሙ୰෭༷᪉ᘧ FC ἲField cooling Method ࢆ᥇⏝ࡋ࡚㧗㉸㟁ᑟయࢆ╔☢ࡉࡏࡿࠋ㧗 ㉸㟁ᑟయࡀ╔☢ࡉࢀࡓᚋࡣࠊప ᐜჾࡈ࡜ບ☢⏝࣐ࢢࢿࢵࢺ࠿ࡽྲྀࡾฟࡋ࡚ NMR ⏝࣐ࢢࢿࢵࢺ࡜ࡋ࡚౑⏝ࡍࡿࡇ࡜ࡀྍ⬟࡜࡞ࡿࡓࡵ㠀ᖖ࡟ࢥࣥࣃࢡࢺ࡞⿦⨨࡜࡞ࡿࠋᮏ◊✲ࡣࠊ┤ᚄ 20mm ࡢ⌫≧ᐃ✵㛫࡟ 4.7T (200MHz ┦ᙜ)ࡢᆒ୍☢ሙࢆⓎ⏕ࡉࡏࡿࡇ࡜ࢆᙜ㠃ࡢ┠ᶆ࡜ࡋ࡚࠾ࡾࠊࡑࡢ┠ᶆࢆ㐩ᡂࡉࡏࡿࡓ
ࡵ࡟ࡣࠊ✚ᒙᵓ㐀ࡢ᭱㐺໬ࡸ㐺ษ࡞෭༷᪉ἲࡢ㑅ᐃ࡞࡝ࡀᚲせ࡟࡞ࡿ࡜ᛮࢃࢀࡿࠋ㻟㻚 ᐇ㦂᪉ἲ䛚䜘䜃⤖ᯝ㻌 ᮏ◊✲࡛ࡣ㸪GdBCO 㓟໬≀㉸㟁ᑟࣂࣝࢡయࢆ⏝࠸ࡓ
NMR ⏝࣐ࢢࢿࢵࢺ࡟ࡘ࠸᳨࡚ウࢆ⾜ࡗ࡚࠸ࡿ㸬ヨᩱ࡟ࡣ㸪እᚄ 60mm㸪ෆᚄ 20mm㸪ཌࡳ 5mm ࡢࣂࣝࢡయࢆ 4 ಶ(Bulk
A,B,C,D)⏝࠸ࡓ㸬ᐇ㦂࡟⏝࠸ࡓ✚ᒙᵓ㐀㧗 ㉸㟁ᑟࣂࣝࢡయࡢᴫᛕᅗࢆᅗ 1 ࡟♧ࡍࠋࣂࣝࢡయࡢᤕᤊ☢ሙศᕸ࠾ࡼ

Magnetic flux density (T)

㻝㻚

15

20

z axis (mm)

)LJ0HDVXUHGPDJQHWLFILHOGGLVWULEXWLRQVDORQJWKHD[LDOGLUHFWLRQLQWKHVLQJOHDQGVWDFNHG+76EXONDQQXOLDW.

― 62 ―

第83回

2010年度秋季低温工学・超電導学会

1C-p05

熱伝達 / 沸騰ᾮయỈ⣲䛾䝥䞊䝹෭༷䛻䛚䛡䜛㐣Ώ⇕ఏ㐩≉ᛶ㻌㼀㼞㼍㼚㼟㼕㼑㼚㼠㻌㼔㼑㼍㼠㻌㼠㼞㼍㼚㼟㼒㼑㼞㻌㼒㼞㼛㼙㻌㼍㻌㼔㼛㼞㼕㼦㼛㼚㼠㼍㼘㻌㼒㼘㼍㼠㻌㼜㼘㼍㼠㼑㻌㼕㼚㻌㼍㻌㼜㼛㼛㼘㻌㼛㼒㻌㼘㼕㼝㼡㼕㼐㻌㼔㼥㼐㼞㼛㼓㼑㼚㻌 㻌

qcrx10-5 (w/m2)

qcrx10-52(W/m )

2

q [W/m ]㻌ሷὠ㻌 ṇ༤䚸ᑠᯘ㻌 ၨே䚸➉ୖ㻌 Ὀᶞ䚸㻌 ⓑ஭㻌 ᗣஅ䚸⏿㻌 ᖾ୍䠄ி኱䠅䠗㻌 㻌㐩ᮏ㻌 ⾮㍤䠄ཎᏊຊᶵᵓ䠅䚸ᑠᯘ㻌 ᘯ᫂㻘㻌 ᡂᑿ㻌 ⰾ༤㻘㻌 ✄㇂㻌 ⰾᩥ㻔㻶㻭㼄㻭㻕㻌㻿㻴㻵㻻㼀㻿㼁㻌㻹㼍㼟㼍㼔㼕㼞㼛㻘㻌㻷㻻㻮㻭㼅㻭㻿㻴㻵㻌㻴㼕㼞㼛㼠㼛㻘㻌㼀㻭㻷㻱㻳㻭㻹㻵㻌㼀㼍㼕㼗㼕㻘㻌㻿㻴㻵㻾㻭㻵㻌㼅㼍㼟㼡㼥㼡㼗㼕㻘㻌㻴㻭㼀㻭㻌㻷㼛㼕㼏㼔㼕㻌㻔㻷㼥㼛㼠㼛㻌㼁㼚㼕㼢㻚㻕㻧㻌 㻌㼀㻭㼀㻿㼁㻹㻻㼀㻻㻌㻴㼕㼐㼑㼗㼕㻌㻔㻶㻭㻱㻭㻕㻚㻌㻷㻻㻮㻭㼅㻭㻿㻴㻵㻌㻴㼕㼞㼛㼍㼗㼕㻘㻌㻺㻭㻾㼁㻻㻌㼅㼛㼟㼔㼕㼔㼕㼞㼛㻘㻌㻵㻺㻭㼀㻭㻺㻵㻌㻴㼕㼞㼛㼔㼡㼙㼕㻔㻶㻭㼄㻭㻕㻌㻱㻙㼙㼍㼕㼘㻦㻌㼟㼔㼕㼛㼠㼟㼡㻬㼜㼑㻚㼑㼚㼑㼞㼓㼥㻚㼗㼥㼛㼠㼛㻙㼡㻚㼍㼏㻚㼖㼜㻌㻌㻝䠊䛿䛨䜑䛻㻌
㼇㻞㼉A. Sakurai, et al.: Cryogenics, Vol.32 (1992) p.421.
➹⪅➼䛿䚸ᾮయỈ⣲෭༷㉸㟁ᑟ䝅䝇䝔䝮タィ䛻ᚲせ䛺䝕䞊㻌䝍䝧䞊䝇☜❧䜢䜑䛦䛧䛶䚸ᾮయỈ⣲⇕ఏ㐩䛾ᐇ㦂ⓗ◊✲䜢⾜ㅰ㎡㻌 䛣䛾◊✲䛾୍㒊䛿䚸㻶㻿㻼㻿 ⛉◊㈝䠄㻞㻜㻟㻢㻜㻝㻞㻣䠅䚸㻹㻱㼄㼀 ⛉䛳䛶䛔䜛䚹ᮏ✏䛷䛿䚸ᾮయỈ⣲ᾐₕ෭༷㐣Ώ⇕ఏ㐩䚸≉䛻ᾮ◊㈝䠄㻞㻜㻣㻢㻜㻝㻠㻝䠅䛾⿵ຓ䜢ཷ䛡䛯䚹㻌య❅⣲෭༷䛾䜘䛖䛺⭷Ἓ㦐┤᥋㑄⛣䛾᭷↓䜢᫂䜙䛛䛻䛩䜛䛣㻌䛸䜢┠ⓗ䛸䛧䛶䚸Ỉᖹୖྥ䛝ᖹᯈⓎ⇕య䛻ᣦᩘ㛵ᩘ≧ୖ᪼Ⓨ㻌⇕䜢୚䛘䛯ሙྜ䛾⇕ఏ㐩䜢䚸ᗈ䛔ᅽຊ⠊ᅖ䛷䝃䝤䜽䞊䝹ᗘ䜢
P=104kPa qcr 㻌5ኚ໬䛥䛫䛶 ᐃ䛧䛯䚹㻌㻌
10 Saturated qcr㻌㻌㻞䠊ヨ㦂Ⓨ⇕య㻌 㻌㻌Nucleate
Non-boiling
BoilingᾮయỈ⣲䝥䞊䝹୰䛻䚸ᕵ 㻡㻌㼙㼙㻚㻌 㛗䛥 㻢㻜㻌㼙㼙 䛾 㻿㼁㻿㻟㻝㻢 ᖹ㻌104
ᯈⓎ⇕య䜢㛗䛥᪉ྥ䜢Ỉᖹ䛻ᕵ᪉ྥ䜢ᆶ┤䛻タ⨨䛧䛯䚹Ⓨ⇕㻌
Period⋡䛜ᣦᩘ㛵ᩘ≧䛻䛺䜛䜘䛖䛻ไᚚ䛧䛶㟁ὶຍ⇕䛧䚸㟁Ẽ᢬ᢠ㻌
0.016sኚ໬䛛䜙Ⓨ⇕యᖹᆒ ᗘ䜢 ᐃ䛧䛯䚹⇕ὶ᮰䛿䜶䝛䝹䜼䞊4.0 s
㻌
Conduction䝞䝷䞁䝇ᘧ䛛䜙䚸Ⓨ⇕య⾲㠃 ᗘ䛿䚸 ᐃ䛧䛯ᖹᆒ ᗘ䛸⇕㻌 103Natural Convectionὶ᮰䛛䜙ཌ䛥᪉ྥ䛾⇕ఏᑟᘧ䜢ゎ䛔䛶ồ䜑䛯䚹ᐇ㦂⿦⨨䛾
㻌
1
5 10
50 100඲ᐜ䚸᮲௳タᐃ䞉ヨ㦂᪉ἲ䛿᪤䛻ሗ࿌䛧䛯㼇㻝㼉䛾䛷┬␎䛩䜛䚹㻌
㻌 0.5
㻌
㻌
'Tsat [K]㻟䠊ᐇ㦂⤖ᯝ䛸⪃ᐹ㻌 㻌㻲㼕㼓㻚䠍㻌 㼀㼥㼜㼕㼏㼍㼘㻌㼎㼛㼕㼘㼕㼚㼓㻌㼏㼡㼞㼢㼑㼟㻌㼡㼚㼐㼑㼞㻌㼟㼍㼠㼡㼞㼍㼠㼑㼐㻌㼏㼛㼚㼐㼕㼠㼕㼛㼚㻚㻌ᐇ㦂䛿኱Ẽᅽ䛛䜙 㻣㻜㻜㻌㼗㻼㼍 䜎䛷䛾ᅽຊୗ䚸㣬࿴ཬ䜃䝃䝤䜽㻌3䞊䝹≧ែ䛷⾜䛳䛯䚹Ⓨ⇕య䛻᫬㛫䛸ඹ䛻ᣦᩘ㛵ᩘ≧䛻ୖ᪼㻌䛩䜛Ⓨ⇕⋡㻌 Q Q0 exp(t / W ) 䜢୚䛘䚸ୖ᪼࿘ᮇ㻌 W 䜢 㻜㻚㻜㻜㻤䡏㻌
Saturated Condition㻌䛛䜙 㻤㻌㼟 䜎䛷✀䚻ኚ໬䛥䛫䛶㐣Ώ⇕ఏ㐩≉ᛶ䜢ㄪ䜉䛯䚹㻌104 kPa㻌㻲㼕㼓㻚䠍䛻௦⾲ⓗ䛺Ἓ㦐⇕ఏ㐩᭤⥺䜢♧䛩䚹⦪㍈䛿⇕ὶ᮰䚸
2
400 kPa㻌ᶓ㍈䛿Ⓨ⇕య⾲㠃䛾㣬࿴ ᗘ䛛䜙䛾ୖ᪼ศ䛷䛒䜛䚹ᅗ୰䕿
700 kPa㻌༳䛿ẚ㍑ⓗ㏿䛔 W 0.016 䡏䛾ሙྜ䛷䛒䜛䚹⇕ὶ᮰ୖ᪼䛸ඹ䛻㻌Ⓨ⇕య ᗘ䜒ୖ᪼䛧䚸㣬࿴ ᗘ䜢䠔㻷 ⛬ᗘ㉸䛘䛯䛸䛣䜝䛷Ἓ㦐1㻌䛜㛤ጞ䛩䜛䚹௨ᚋ⇕ఏ㐩䛾Ⰻ䛔᰾Ἓ㦐㡿ᇦ䜢ୖ᪼䛧䚸⮫⏺
㻌⇕ὶ᮰㻔㻯㻴㻲㻕䛻㐩䛩䜛䛸⇕ὶ᮰䛜ῶᑡ䛧⾲㠃 ᗘ䛜ᛴୖ᪼㻌䛩䜛䚹㠀Ἓ㦐ᇦ䛾⇕ఏ㐩䛿ᾮ䛜ື䛛䛺䛔䛸䛧䛯㐣Ώ⇕ఏᑟ䛾
㻌
ᘧ㻌
0
10-2
10-1
100
101
㻌
㻌
h ( kl U l c p ,l / W ) 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻔㻝㻕㻌
Exponential Period (s)㻌㻌㻲㼕㼓㻚㻞㻌
㻯㻴㻲㻌㼡㼚㼐㼑㼞㻌
㼟㼍㼠㼡㼞㼍㼠㼑㼐㻌㼏㼛㼚㼐㼕㼠㼕㼛㼚㻌 㼢㼟㻚㻌 㼑㼤㼜㼛㼚㼑㼚㼠㼕㼍㼘㻌 㼜㼑㼞㼕㼛㼐㻌䛸䜘䛟୍⮴䛧䛶䛔䜛䚹 h 䛿⇕ఏ㐩ಀᩘ䚹ẚ㍑䛾䛯䜑䚸䜖䛳䛟䜚䛧㼣㼕㼠㼔㻌㼜㼞㼑㼟㼟㼡㼞㼑㻌㼍㼟㻌㼍㻌㼜㼍㼞㼍㼙㼑㼠㼑㼞㻚㻌䛯ୖ᪼䛷䛒䜛 W 4 䡏䛾⇕ఏ㐩䜢ᅗ୰䛻䕧༳䛷♧䛩䚹㠀Ἓ㦐㻌⇕ఏ㐩ಀᩘ䚸Ἓ㦐㛤ጞ㐣⇕ᗘ䚸㻯㻴㻲 ඹ W 0.016 䡏䛾ሙྜ䜘䜚㻌ప䛔䚹㠀Ἓ㦐ᇦ䛾⇕ఏ㐩䛿 㻹㼏㻭㼐㼍㼙㼟㻌 䛾⮬↛ᑐὶ⇕ఏ㐩ᘧ
Pressure 700kPa㻌䛸䜋䜌୍⮴䛧䛶䛔䜛䚹㻌
Subcooling2㻌㻲㼕㼓㻚䠎䛿䚸㻝㻜㻠㼗㻼㼍㻘㻌 㻠㻜㻜㼗㻼㼍㻘㻌 㻣㻜㻜㼗㻼㼍 䛻䛚䛡䜛 㻯㻴㻲 䛸 W 䛾㛵
8K㻌ಀ䜢♧䛩䚹ྛᅽຊ䛻䛚䛡䜛 㻯㻴㻲 䛿䚸 W 䛾ῶᑡ䛸䛸䜒䛻༢ㄪ䛻
5K
㻌ୖ᪼䛧䚸ᾮయ❅⣲෭༷䛾䜘䛖䛺⭷Ἓ㦐┤᥋㑄⛣䛻䜘䜛ᛴ⃭䛺
0K㻌
ῶ ᑡ 㼇㻞㼉 䛿 ぢ 䜙 䜜 䛺 䛔 䚹 ྠ ୍ W 䛻 䛚 䛡 䜛 ᅽ ຊ 䛾 ᙳ 㡪 䛿 䚸㻌㻝㻜㻠㻷㻼㼍 䛛䜙 㻠㻜㻜㼗㻼㼍 ㏆ഐ䜎䛷䛿ᅽຊୖ᪼䛸ඹ䛻ഹ䛛䛻኱䛝䛟1㻌䛺䜚௨ᚋᑠ䛥䛟䛺䛳䛶䛔䜛䚹㻌㻌㻲㼕㼓㻚䠏䛿䚸ᅽຊ 㻣㻜㻜㼗㻼㼍㻘䝃䝤䜽䞊䝹ᗘ 㻜㻷㻘㻌 㻡㻷㻘㻌 㻤㻷 䛻䛚䛡䜛㻌㻯㻴㻲 䛸 W 䛾㛵ಀ䜢♧䛩䚹ྛ䝃䝤䜽䞊䝹ᗘ䛻䛚䛡䜛 㻯㻴㻲 䛿䚸 W㻌䛾ῶᑡ䛸䛸䜒䛻༢ㄪ䛻ୖ᪼䛧䛶䛚䜚⭷Ἓ㦐┤᥋㑄⛣䛿ぢ䜙䜜
0
10-2
10-1
100
101
㻌
䛺䛔䚹ྠ ୍ W 䛻䛚䛡䜛 㻯㻴㻲 䛿䚸䝕䞊䝍䛾䜀䜙䛴䛝䛻䜘䜚㻌
Exponential Period (s)W 0.008 䡏䛾Ⅼ䛷ഹ䛛䛻㏫㌿䛧䛶䛔䜛䛣䛸䜢㝖䛡䜀䝃䝤䜽䞊㻲㼕㼓㻚㻟㻌㻚㻌㻯㻴㻲㻌㼢㼟㻚㻌㼑㼤㼜㼛㼚㼑㼚㼠㼕㼍㼘㻌㼜㼑㼞㼕㼛㼐㻌㼍㼠㻌㼜㼞㼑㼟㼟㼡㼞㼑㻌㼛㼒㻌㻣㻜㻜㻌㼗㻼㼍㻌㼣㼕㼠㼔㻌䝹ᗘ䛜኱䛝䛔䜋䛹኱䛝䛔䚹㻌㼟㼡㼎㼏㼛㼛㼘㼕㼚㼓㻌㼍㼟㻌㼍㻌㼜㼍㼞㼍㼙㼑㼠㼑㼞㻚㻌ཧ⪃ᩥ⊩㻌 㼇㻝㼉ྜྷᕝ䜙䠖㻞㻜㻜㻥 ᖺᗘ⛅Ꮨప ᕤᏛ㉸㟁ᑟᏛ఍ண✏㞟 㻝㻰㻙㼍㻜㻥㻌― 63 ―

第83回

2010年度秋季低温工学・超電導学会

1C-p06

熱伝達 / 沸騰ᆶ┤෇⟶ෆ㉸⮫⏺Ỉ⣲䛾ᙉไᑐὶ⇕ఏ㐩㻌㻲㼛㼞㼏㼑㼐㻌㼒㼘㼛㼣㻌㼎㼛㼕㼘㼕㼚㼓㻌㼔㼑㼍㼠㻌㼠㼞㼍㼚㼟㼒㼑㼞㻌㼛㼒㻌㼟㼡㼜㼑㼞㼏㼞㼕㼠㼕㼏㼍㼘㻌㼔㼥㼐㼞㼛㼓㼑㼚㻌 㻌㻌㐩ᮏ⾮㍤㸦ཎᏊຊᶵᵓ㸧ࠊሷὠṇ༤ࠊᑠᯘၨேࠊྜྷᕝᾈኴ㑻ࠊⓑ஭ᗣஅࠊ⏿ᖾ୍㸦ி኱㸧ᑠᯘᘯ᫂ࠊᡂᑿⰾ༤ࠊ✄㇂ⰾᩥ㸦-$;$㸧㼀㻭㼀㻿㼁㻹㻻㼀㻻㻌㻴㼕㼐㼑㼗㼕㻌㻔㻶㻭㻱㻭㻕㻘㻌㻿㻴㻵㻾㻭㻵㻌㼅㼍㼟㼡㼥㼡㼗㼕㻘㻿㻴㻵㻻㼀㻿㼁㻌㻹㼍㼟㼍㼔㼕㼞㼛㻘㻌㻷㻻㻮㻭㼅㻭㻿㻴㻵㻌㻴㼕㼞㼛㼠㼛㻘㼅㻻㻿㻴㻵㻷㻭㼃㻭㻌㻷㼛㼠㼍㼞㼛㻘㻌㻴㻭㼀㻭㻌㻷㼛㼕㼏㼔㼕㻌 㻔㻷㼥㼛㼠㼛㻌㼁㼚㼕㼢㻚㻕㻌㻧㻌 㻌㻷㻻㻮㻭㼅㻭㻿㻴㻵㻌㻴㼕㼞㼛㼍㼗㼕㻘㻌㻺㻭㻾㼁㻻㻌㼅㼛㼟㼔㼕㼔㼕㼞㼛㻘㻌㻵㻺㻭㼀㻭㻺㻵㻌㼅㼛㼟㼔㼕㼒㼡㼙㼕㻌㻔㻶㻭㼄㻭㻕 㻌㻱㻙㼙㼍㼕㼘㻦㻌㼟㼔㼕㼞㼍㼕㻬㼑㼚㼑㼞㼓㼥㻚㼗㼥㼛㼠㼛㻙㼡㻚㼍㼏㻚㼖㼜㻌

0.023ReB 0.8 PrB

0.4

0.25

Fc

2
ª
§D · º«1.0  108.7¨¨ e ¸¸ »© L ¹ ¼»¬«

Cp

(hw  hB ) /(Tw  TB ) , PrB

Nu B

Fc

(1)



§ Uw ·
¨
¸
¨U ¸
© B¹

0.34

§ Pw ·
¨
¸
¨P ¸
© B¹

0.17

C P P B / OB䛣䛣䛷䚸Fc 䛿ಟṇಀᩘ䚸ῧ䛘Ꮠ B 䛿䚸ධཱྀὶయ ᗘ䚸 w 䛿Ⓨ⇕య⾲㠃 ᗘ䛻䛚䛡䜛್䜢♧䛩䚹ᅗ♧ࡍࡿࡼ࠺࡟ࠊ⮫⏺ ᗘ௨ୗࡢ㡿ᇦࡢ⇕ఏ㐩ࡣ Dittus-Boelterᘧ࡜Ⰻࡃ୍⮴ࡋ࡚࠸ࡿࠋ' TL =100 K ㏆ഐࡲ࡛ࡣࠊᐇ㦂⤖ᯝࡣᘧ(1)࡟ࡼࡾⰋࡃグ㏙ࡉࢀ࡚࠸ࡿࠋࡋ࠿ࡋࠊ' TL 㸼100 K ࡢ㡿ᇦࡢ⇕ఏ㐩ࡣࠊᘧ(1)ࡼࡾ኱ࡁࡃ࡞ࡿഴྥࢆ♧ࡋ࡚࠸ࡿࠋࡇࢀࡣⓎ⇕యෆ⾲㠃㏆ഐࡢ ᗘቃ⏺ᒙࡀ࠶ࡿ⛬ᗘཌࡃ࡞ࡿ࡜୺ὶ࡜ࡢ┦஫స⏝࡟ࡼࡗ࡚஘ࡉࢀ๤㞳ࡀ㉳ࡇࡿࡓࡵ࡛࠶ࡿ࡜᥎ ࡉࢀࡿࠋ
Fig. 3 䛿䚸ධཱྀ ᗘ䛜⮫⏺ ᗘ䜘䜚ഹ䛛䛻㧗䛔 33.5 K ࡢᐇ㦂⤖ᯝࢆ♧ࡍ䚹䛣䛾ᐇ㦂⿦⨨䛷䛿䝫䞁䝥䜢౑䜟䛺䛔䛷ヨ㦂ᵴ䛛䜙䝃䝤䝍䞁Supercritical pressure
I6mm tube
P=1.5 MPa
T in=21 K

10 6

q (W/m2)

㻞㻚㻌 ヨ㦂Ⓨ⇕య㻌⿦⨨䜔ᐇ㦂᪉ἲ䛾ヲ⣽䛿᪤䛻ሗ࿌䛧䛶䛔䜛䛾䛷┬␎䛩䜛[1]䚹ヨ㦂Ⓨ⇕యࡣࠊእഃࢆ FRP ࣈࣟࢵࢡ࡛᩿⇕ࡋࡓෆᚄ 6 mmࠊཌࡉ 0.2mm, 㛗ࡉ 100 mm ࡢ SUS316 〇ⷧ⫗ࣃ࢖ࣉࢆヨ㦂ᵴෆࢺࣛࣥࢫࣇ
࢓࣮ࢳ࣮ࣗࣈࡢ୍➃࡟᥋⥆ࡋࠊᆶ┤࡟ᨭᣢࡋࡓࠋࡇࡢヨ㦂యࢆ‽ᐃᖖⓗ࡟┤ὶ㟁ὶຍ⇕ࡋ࡚ࠊ㟁Ẽ᢬ᢠኚ໬࠿ࡽⓎ⇕యᖹᆒ ᗘࢆ
ᐃࡋࡓࠋⓎ⇕య⾲㠃 ᗘࡣࠊᖹᆒ ᗘࡢᆶ┤㍈᪉ྥศᕸࢆ↓どࡋࠊ ᐃࡋࡓᖹᆒ ᗘ࡜⇕ὶ᮰࠿ࡽཌࡉ᪉ྥࡢ⇕ఏᑟᘧࢆゎ࠸࡚ồࡵࡓࠋ㻌㻟㻚㻌 ᐇ㦂⤖ᯝ䛸⪃ᐹ㻌Ỉ⣲䛾⮫⏺ᅽຊ䛿䡠1.28MPa䚸⮫⏺ ᗘ䛿 32.94K 䛷䛒䜛䚹ᐇ㦂䛿㉸⮫⏺ᅽỈ⣲䠄1.5MPa䠅䛾ධཱྀὶయ ᗘ(Tin)䜢 21, 30 33.5K 䛻ኚ໬䛥䛫䛯䚹ὶ㏿䛿 1䡚12m/s 䛾⠊ᅖ䛷䚸ຍ⇕㟁ὶ䜢㐃⥆ⓗ䛻䜖䛳䛟䜚ୖ᪼䛥䛫䛶⇕ఏ㐩≉ᛶ䜢ồ䜑䛯䚹ධཱྀὶయ ᗘ䛜⮫⏺ ᗘ䜘䜚䛿䜛䛛䛻ప䛔 21 K 䛾ሙྜ䛸⮫⏺
ᗘ䛻㏆䛔 30 K ࡢሙྜࡢᙉไᑐὶ⇕ఏ㐩≉ᛶ⤖ᯝࢆ Fig. 1ࠊ Fig.2
࡟ࡑࢀࡒࢀ♧ࡍࠋᙉไᑐὶ⇕ఏ㐩≉ᛶࡣࠊⓎ⇕య⾲㠃⇕ὶ᮰ q ࡜Ⓨ⇕య⾲㠃 ᗘ(Tw)ࡢධཱྀ ᗘ(Tin)࠿ࡽࡢୖ᪼ศ㸦' TL =Tw - Tin㸧ࢆ⏝࠸࡚ホ౯ࡋࡓࠋ⇕ὶ᮰ࡣࠊὶ㏿ࡀ኱ࡁ࠸࡯࡝ࠊ 'TL ࡀ኱ࡁ࠸࡯࡝኱ࡁࡃ࡞ࡿࠋྛὶ㏿࡟࠾࠸࡚ࠊⓎ⇕య⾲㠃 ᗘࡀỈ⣲ࡢ⮫⏺
ᗘ࡟฿㐩ࡍࡿ' TL䍦12 K (Fig.1)ཬࡧ 3 K (Fig.2)㏆ഐࢆቃ࡜ࡋ࡚
㧗࠸' TL ᇦ࡛⇕ఏ㐩ࡀᝏࡃ࡞ࡗ࡚࠸ࡿࠋᅗ୰࡟ࠊ➹⪅➼[1]ࡀᑟฟ
ࡋࡓ㉸⮫⏺ᅽὶయᙉไᑐὶ⇕ఏ㐩⾲♧ᘧ(1)ࢆ◚⥺࡛♧ࡍࠋ䜽䛻ᅽຊᕪ䛷ὶయ䜢⛣㏦䛩䜛䛯䜑䚸ὶయ ᗘ䛜⮫⏺ ᗘ䜢㉸䛘䜛䛸ὶ䜜䛜୙Ᏻᐃ䛸䛺䜚䚸⮫⏺ ᗘ䛾䛤䛟㏆ഐ䛧䛛ᐇ㦂䛷䛝䛶䛔䛺䛔䚹䛣䛾ሙྜ䛾ᐇ㦂⤖ᯝ䜒ᘧ(1)䛷グ㏙䛷䛝䜛䜘䛖䛻ᛮ䜟䜜䜛䚹㻌ཧ⪃ᩥ⊩㻌 㻌㼇㻝㼉ྜྷᕝ䜙䠖㻞㻜㻜㻥 ᖺᗘ⛅Ꮨప ᕤᏛ㉸㟁ᑟᏛ఍ண✏㞟 㻝㻰㻙㼍㻜㻥㻌㼇㻞㼉ሷὠ䜙䠖㻞㻜㻝㻜 ᖺᗘ᫓Ꮨప ᕤᏛ㉸㟁ᑟᏛ఍ண✏㞟㻌 㻞㻰㻙㼍㻜㻣㻌

11.93 m/s

4.96 m/s
2.16 m/s

10 5
1.01 m/s

10 4
Eq.(1)


10 3

1

.

10

100

1000

' T L (K)

Fig.1 Heat transfer characteristics for Tin=21 K at supercriticalpressure of 1.5 MPa
Supercritical pressure
I6mm tube
P=1.5 MPa
Tin=30 K

106

q (W/m2)㻝㻚㻌 䛿䛨䜑䛻㻌㉸⮫⏺ᅽ㸦1.5MPa㸧ࡢ᮲௳ୗ࡛⮫⏺ ᗘ௨ୗࡢప Ỉ⣲ࡀ㟁ὶຍ⇕ᆶ┤෇⟶ෆࢆୖྥࡁ࡟ὶࢀࡿሙྜࡢ෇⟶ෆ㠃࡟࠾ࡅࡿᙉไᑐ
ὶ⇕ఏ㐩ࢆὶ㏿ࠊᾮ ࢆኚ࠼࡚ ᐃࡋࡓࠋᮏㅮ₇࡛ࡣධཱྀὶయ
ᗘࡀ⮫⏺ ᗘ௨ୗ࡜ࡑࢀ௨ୖࡢሙྜࡢ⇕ఏ㐩≉ᛶࢆሗ࿌ࡍࡿࠋ

11.99 m/s

3.91 m/s
2.16 m/s

105
1.40 m/s

104
Eq.(1)

㻌 103
1
10
100
1000
㻌
'TL (K)㻌
Fig.2 㻌Heat transfer characteristics for Tin=30 K at supercriticalpressure of 1.5 MPa㻌㻌 106 Supercritical pressure㻌I6mm tube
P=1.5 MPa㻌
Tin=33.5 K (>Tc)
㻌 5
4.49 m/s
10
㻌
㻌
㻌 4
10
㻌
Eq.(1)
10

3

0.1

1

10

100

1000

'TL (K)

Fig.3 Heat transfer characteristics for Tin=33.5 K at supercriticalpressure of 1.5 MPa― 64 ―

第83回

2010年度秋季低温工学・超電導学会

1C-p07

熱伝達 / 沸騰ᙉไᑐὶᾮయỈ⣲䛾㣬࿴Ἓ㦐 㻰㻺㻮 ⇕ὶ᮰⾲♧ᘧ㻌㻱㼙㼜㼕㼞㼕㼏㼍㼘㻌㻱㼝㼡㼍㼠㼕㼛㼚㻌㼛㼒㻌㼟㼍㼠㼡㼞㼍㼠㼑㼐㻌㻰㻺㻮㻌㼔㼑㼍㼠㻌㼒㼘㼡㼤㻌㼕㼚㻌㼒㼛㼞㼏㼑㼐㻌㼒㼘㼛㼣㻌㼛㼒㻌㼘㼕㼝㼡㼕㼐㻌㼔㼥㼐㼞㼛㼓㼑㼚㻌㻧㻌㻌➉ୖὈᶞ䚸ᑠᯘ㻌 ၨே䚸ྜྷᕝ㻌 ᾈኴ㑻䚸ⓑ஭㻌 ᗣஅ䚸ሷὠ㻌 ṇ༤䚸⏿㻌 ᖾ୍䠄ி኱䠅䠗㻌㐩ᮏ㻌 ⾮㍤䠄ཎᏊຊᶵᵓ䠅䠗ᑠᯘ㻌 ᘯ᫂䚸ᡂᑿ㻌 ⰾ༤䚸✄㇂㻌 ⰾᩥ䠄㻶㻭㼄㻭䠅䠗ᮌୗ㻌 ຾ᘯ䠄㛵㟁䠅㻌㼀㻭㻷㻱㻳㻭㻹㻵㻌㼀㼍㼕㼗㼕䠈㻷㻻㻮㻭㼅㻭㻿㻴㻵㻌㻴㼕㼞㼛㼠㼛㻘㼅㻻㻿㻴㻵㻷㻭㼃㻭㻌㻷㼛㼠㼍㼞㼛㻘㻌㻿㻴㻵㻾㻭㻵㻌㼅㼍㼟㼡㼥㼡㼗㼕㻘㻌㻿㻴㻵㻻㼀㻿㼁㻌㻹㼍㼟㼍㼔㼕㼞㼛㻘㻌㻴㻭㼀㻭㻌㻷㼛㼕㼏㼔㼕㻌 㻔㻷㼥㼛㼠㼛㻌㼁㼚㼕㼢㻚㻕㻌㻧㻌 㻌㼀㻭㼀㻿㼁㻹㻻㼀㻻㻌㻴㼕㼐㼑㼗㼕㻌㻔㻶㻭㻱㻾㻵㻕㻧㻌㻷㻻㻮㻭㼅㻭㻿㻴㻵㻌㻴㼕㼞㼛㼍㼗㼕㻘㻌㻺㻭㻾㼁㻻㻌㼅㼛㼟㼔㼕㼔㼕㼞㼛㻘㻌㻵㻺㻭㼀㻭㻺㻵㻌㼅㼛㼟㼔㼕㼒㼡㼙㼕㻌㻔㻶㻭㼄㻭㻕㻌㻧㻌㻷㻵㻺㻻㻿㻴㻵㼀㻭㻌㻷㼍㼠㼟㼡㼔㼕㼞㼛㻌㻔㻷㻱㻼㻯㻻㻕㻌㻱㻙㼙㼍㼕㼘㻦㻌㼠㼍㼗㼑㼓㼍㼙㼕㻬㼜㼑㻚㼑㼚㼑㼞㼓㼥㻚㼗㼥㼛㼠㼛㻙㼡㻚㼍㼏㻚㼖㼜㻌ࡇࡇ࡛ We G 2 d /( Ul V )ẚ㍑ⓗ▷䛔⟶ෆ䛾ᙉไᑐὶ 㻰㻺㻮 ⇕ὶ᮰⾲♧ᘧ䛸䛧䛶䛿䚸᰾⼥ྜᐇ㦂⿦⨨䛾䝎䜲䝞䞊䝍䛛䜙䛾㧗ᐦᗘ㝖⇕䜢ᑐ㇟䛸䛧䛯⏿䜙䛾Ỉ䛾ᐇ㦂⤖ᯝ䛸䛭䜜䛻ᇶ䛵䛟⾲♧ᘧ䛜䛒䜛㼇㻟㼉䚹㐩ᮏ䜙䛿䚸ᾮయỈ⣲䛾䝃䝤䜽䞊䝹ᙉไᑐὶ㻰㻺㻮 ⇕ὶ᮰䜢ồ䜑䚸䝃䝤䜽䞊䝹ᗘ䛜ᑠ䛥䛟䛺䜛䛻ᚑ䛔⏿ᘧ䛜ᐇ㦂⤖ᯝ䜢㐣ᑠホ౯䛩䜛䛣䛸䜢᫂䜙䛛䛻䛧䛶ྠᘧ䜢ಟṇ䛧䛯⾲♧ᘧ䜢ᥦ♧䛧䛯㼇㻠㼉䚹䛣䜜䜙䛾ᘧ䛿㢧⇕㍺㏦䛾䜏䜢⪃៖䛧䛶䛔䜛䛯䜑䝃䝤䜽䞊䝹ᗘ䛜䝊䝻䛻䛺䜛䛸 㻰㻺㻮 ⇕ὶ᮰䜢䝊䝻䛸⾲♧䛩䜛䚹䛣䛾◊✲䛻䛚䛔䛶ⴭ⪅䜙䛿₯⇕㍺㏦ศ䜢ᗈ⠊ᅖ䛺᮲௳ୗ䛷ึ䜑䛶ᐃ㔞ⓗ䛻᫂䜙䛛䛻䛧䚸䛭䛾⾲♧ᘧ䜢ᥦ♧䛧䛯䚹䛣䜜䛿䚸✀䚻䛾ᾮయ䛻㐺⏝ྍ⬟䛺୍⯡ⓗ䛺ᙉไᑐὶ 㻰㻺㻮 ⇕ὶ᮰⾲♧ᘧ䛾☜❧䛻ᐤ୚䛩䜛䛣䛸䛜ᮇᚅ䛥䜜䜛䚹㻌ཧ⪃ᩥ⊩㻌 㻌㼇㻝㼉㐩ᮏ䜙䠖㻞㻜㻜㻥 ᖺᗘ⛅Ꮨప ᕤᏛ㉸㟁ᑟᏛ఍ண✏㞟 㻝㻰㻙㼍㻜㻤㻌㼇㻞㼉ྜྷᕝ䜙䠖㻞㻜㻜㻥 ᖺᗘ⛅Ꮨప ᕤᏛ㉸㟁ᑟᏛ఍ண✏㞟 㻝㻰㻙㼍㻜㻥㻌㼇㻟㼉㻷㻚㻴㼍㼠㼍㻌㼑㼠㻌㼍㼘㻚䠖JSME Int. J. Series B (2004) 47, p. 306.㻌
㼇㻠㼉㻴㻚㼀㼍㼠㼟㼡㼙㼛㼠㼛㻌㼑㼠㻌㼍㼘㻚㻧㻌㻵㻯㻱㻯㻞㻟㻙㻵㻯㻹㻯㻞㻜㻝㻜㻘㻌㼃㼞㼛㼏㼘㼍㼣㻌㻼㼛㼘㼍㼚㼐㻌㻞㻜㻝㻜㻚㻌106

3 mm Dia. Tube
P=1.1MPa'Tsub= 0.K

2

q [W/m ]105

104

Flow Variation
35.7m/s
17.0m/s
3.3m/s

103
0.1

1

10

100

'Tsat [K]Fig.1 Heat transfer curves for various flow velocities undersaturated condition at 1.1 MPa.
[u105] 32

DNB Heat Flux (W/m )3 mm Dia. Tube
2

1
1.1MPa0.7MPa0.4MPa

0

10

20
30
Flow Velocity (m/s)

40

-0.8

(L/d)

0.1

Fig.2 DNB heat flux versus velocity with pressure as aparameter.
10-1
Symbol Pressure
0.4MPa0.7MPa+20%
1.1MPa10-2 -20%-1-1

qDNB,sat G hfg (Uv/Ul)㻝㻚㻌 䛿䛨䜑䛻㻌㣬࿴᮲௳ୗ࡟࠾࠸࡚ᾮయỈ⣲ࡀ㟁ὶຍ⇕ᆶ┤෇⟶ෆࢆୖྥࡁ࡟
ୖ᪼ࡍࡿሙྜࡢ '1% ⇕ὶ᮰ࢆ⣔ᅽຊࠊὶ㏿ཬࡧຍ⇕⟶┤ᚄࢆኚ࠼࡚ ᐃࡋࡓࠋ
ᮏ✏࡛ࡣࡑࡢᐇ㦂⤖ᯝࢆグ㏙ࡍࡿ⾲♧ᘧࢆᥦ♧ࡍࡿࠋ㻌㻞㻚㻌 ヨ㦂Ⓨ⇕య㻌⿦⨨䜔ᐇ㦂᪉ἲ䛾ヲ⣽䛿ඛ䛻ሗ࿌䛧䛯㼇㻝㼉䛾䛷┬␎䛩䜛䚹ヨ㦂Ⓨ⇕యࡣࠊእഃࢆ )53 ࣈࣟࢵࢡ࡛᩿⇕ࡋࡓෆᚄ PP ཬࡧ PP㛗ࡉ PP ࡢ 686 〇ⷧ⫗ࣃ࢖ࣉࢆヨ㦂ᵴෆࢺࣛࣥࢫࣇ࢓࣮ࢳ
࣮ࣗࣈ୍➃࡟ᆶ┤࡟ᨭᣢࡋࡓࠋࡇࡢヨ㦂యࢆ┤ὶ㟁ὶຍ⇕ࡋ࡚ࠊࡑࡢ㟁Ẽ᢬ᢠኚ໬࠿ࡽⓎ⇕యᖹᆒ ᗘࢆ ᐃࡋࡓࠋⓎ⇕య⾲㠃ᗘࡣࠊᖹᆒ ᗘࡢᆶ┤㍈᪉ྥศᕸࢆ↓どࡋ࡚ࠊ ᐃࡋࡓᖹᆒ ᗘ࡜⇕ὶ᮰࠿ࡽཌࡉ᪉ྥࡢ⇕ఏᑟᘧࢆゎ࠸࡚ồࡵࡓࠋ㻌㻟㻚㻌 ᐇ㦂⤖ᯝ䛸⪃ᐹ㻌ᐇ㦂䛿䚸⣔ᅽຊ㻜㻚㻠䡚㻝㻚㻝㻹㼜㼍䛾㣬࿴᮲௳ୗ䛷ὶ㏿䜢✀䚻ኚ䛘䚸ຍ⇕㟁ὶ䜢㐃⥆ⓗ䛻䜖䛳䛟䜚ୖ᪼䛥䛫䛶ᐃᖖ⇕ఏ㐩≉ᛶ䜢 ᐃ䛧䚸㻰㻺㻮 ⇕ὶ᮰䜢ồ䜑䛯䚹㻌 㻌㻲㼕㼓㻚㻌 㻝 䛻䚸ᅽຊ㻝㻚㻝㻹㻼㼍 䛾ሙྜ䛻䛚䛡䜛✀䚻䛾ὶ㏿䛻ᑐ䛩䜛⇕ఏ㐩᭤⥺䜢♧䛩䚹⦪㍈䛿⇕ὶ᮰䚸ᶓ㍈䛿Ⓨ⇕య⾲㠃䛾㣬࿴ ᗘ䛛䜙䛾 ᗘୖ᪼ศ䛷䛒䜛䚹Ⓨ⇕య⾲㠃 ᗘ䛜㣬࿴ ᗘ䜢ഹ䛛䛻㉸䛘䜛䛸᰾Ἓ㦐䛜㛤ጞ䛩䜛䚹᰾Ἓ㦐䛜㛤ጞ䛩䜛䛸䚸⇕ఏ㐩䛜Ⰻ䛟䛺䜛䛯䜑ྛὶ㏿䛾᭤⥺䛸䜒໙㓄䛜኱䛝䛟䛺䜛䚹⇕ὶ᮰䛜䛒䜛್䠄㻰㻺㻮 ⇕ὶ᮰㻕䛻฿㐩䛩䜛䛸⇕ఏ㐩䛜ᛴ䛻ᝏ໬䛧䚸ഹ䛛䛺ຍ⇕㟁ὶ䛾ቑຍ䛷⾲㠃ᗘ䛜኱䛝䛟ୖ᪼䛩䜛䚹ᙉไᑐὶἛ㦐䛾ሙྜ䚸ᚋὶഃ䛛䜙ඛ䛻᰾Ἓ㦐㝈⏺≧ែ䛸䛺䜚Ⓨ⇕⋡䛾ቑຍ䛸ඹ䛻ୖὶഃ䛻⛣⾜䛩䜛䛾䛷䚸䝥䞊䝹Ἓ㦐䛾䜘䛖䛻⭷Ἓ㦐䛻䝆䝱䞁䝥䛩䜛䛾䛷䛿䛺䛟ᙅ䛔ṇ໙㓄䛷㐃⥆ⓗ䛻ୖ᪼䛩䜛䚹㻌
㻲㼕㼓㻚 䠎䛿䚸䠠䠪䠞⇕ὶ᮰ qDNB , sat 䛸ὶ㏿䛾㛵ಀ䜢ᅽຊ䜢䝟䝷䝯䞊䝍䛸䛧䛶♧䛩䚹㻰㻺㻮 ⇕ὶ᮰䛿䚸ᅗ♧䛩䜛䜘䛖䛻ྛᅽຊ䛸䜒ὶ㏿䛜኱䛝䛔䜋䛹኱䛝䛔䚹ὀ┠䛩䜉䛝䛿䚸䠠䠪䠞⇕ὶ᮰䛻⣔ᅽຊ䛾ᙳ㡪䛜Ṥ䛹ぢ䜙䜜䛺䛔䛣䛸䛷䛒䜛䚹㣬࿴䝥䞊䝹Ἓ㦐⮫⏺⇕ὶ᮰䛜ᅽຊ䛻ᙉ䛟౫Ꮡ䛩䜛䛾䛸ᑐ↷ⓗ䛷䛒䜛䚹䛣䜜䛿᪤䛻ሗ࿌䛧䛶䛔䜛㼇㻞㼉䜘䛖䛻䚸䝥䞊䝹Ἓ㦐䛾⮫⏺⇕ὶ᮰䛜Ỉຊⓗ୙Ᏻᐃᛶ䜔㐣⇕㝈⏺䛻䜘䛳䛶Ỵ䜎䜛䛯䜑ᅽຊ䛾ᙳ㡪䜢ᙉ䛟ཷ䛡㧗ᅽᇦ䛷ῶᑡ䛧䛯䛾䛻ᑐ䛧䚸⵨Ẽ 㼝㼡㼍㼘㼕㼠㼥 䛾ప䛔㣬࿴Ἓ㦐ᙉไᑐὶ䛾ሙྜ䚸Ⓨ⏕ẼἻ䛾ὶ䜜䛻䜘䜛㍺㏦㝈⏺䛜䠠䠪䠞⇕ὶ᮰䜢Ỵ䜑䛶䛔䜛䛯䜑䛸⪃䛘䜙䜜䜛䚹䛣䛾㍺㏦㝈⏺䛻ᑐᛂ䛩䜛⵨Ẽ䛾᭱኱㉁㔞ὶ㔞䛿䚸୺䛻ᾮ㉁㔞ὶ㔞(G)䛸 Weber ᩘ(We)䛻౫Ꮡ䛩䜛䛸᥎ 䛥䜜䜛䚹䜎䛯䚸௚䛻ᙳ㡪䜢୚䛘䛖䜛ᅉᏊ䛿䝪䜲䝗⋡䛷䛣䜜䛿
Ⓨ⇕⟶㛗䛥䛸┤ᚄ䛾ẚ ( L / d ) 䛻ẚ౛䛩䜛䚹䛭䛣䛷䚸 qDNB , sat 䛾ᐇ㦂⤖ᯝ䜢 Fig. 3 䛾 log ^qDNB , sat G 1h fg 1 ( U v / U l ) 0.8 ( L / d )0.1` 䛸 log (We)䛾䜾䝷䝣ୖ䛻♧䛩䚹ᅗ♧䛩䜛䜘䛖䛻ᐇ㦂⤖ᯝ䛿኱␎ r20 䠂䛾ㄗᕪ䛷グ㏙䛥䜜䛶䛔䜛䚹㻌qDNB , sat 0.09Gh fg ( U v / U l )0.8 ( L / d ) 0.1We 0.3
(1)

10

-3

102

Diameter
6mm
3mm
103

y=0.09*x(-0.3)
104
We

105

106

Fig.3 Comparison of the authors Eq.(1) with the experimental
data for 3 mm and 6 mm heaters.

― 65 ―

第83回

2010年度秋季低温工学・超電導学会

1C-p08

熱伝達 / 沸騰⼥ゎ䜢⪃៖䛧䛯䝇䝷䝑䝅䝳❅⣲䛾⇕ఏ㐩⋡ィ 㻌㻹㼑㼍㼟㼡㼞㼑㼙㼑㼚㼠㻌㼛㼒㻌㼔㼑㼍㼠㻌㼠㼞㼍㼚㼟㼒㼑㼞㻌㼏㼛㼑㼒㼒㼕㼏㼕㼑㼚㼠㻌㼕㼚㻌㼟㼘㼡㼟㼔㻌㼚㼕㼠㼞㼛㼓㼑㼚㻌㼣㼕㼠㼔㻌㼙㼑㼘㼠㼕㼚㼓㻌ụෆ㻌 ṇ඘䠈▮ཱྀ㻌 ᗈᬕ䠄๓ᕝ䠅䠗Ṋ⏣㻌 ᐇ䠈‶ἑ㻌 ၨ኱䠄⚄ᡞ኱Ꮫ䠅䠗ῡ㔝㻌 ಟ୍㑻䠄⏘⥲◊䠅㻌㻵㻷㻱㼁㻯㻴㻵㻌㻹㼍㼟㼍㼙㼕㼠㼟㼡䠈㻌 㼅㻭㻳㼁㻯㻴㻵㻌㻴㼕㼞㼛㼔㼍㼞㼡㻌㻔䠩䠽䡕䡁䡇䠽䡓䠽㻕㻧㻌㼀㻭㻷㻱㻰㻭㻌㻹㼕㼚㼛㼞㼡㻘㻌㻹㻵㼀㼁㼆㻭㼃㻭㻌㻷㼑㼕㼠㼍㻌㻔㻷㼛㼎㼑㻌㼡㼚㼕㼢㼑㼞㼟㼕㼠㼥㻕㻧㻌 㻌㻲㼁㻯㻴㻵㻺㻻㻌㻿㼔㼡㼕㼏㼔㼕㼞㼛㻌㻔㻭㻵㻿㼀㻕㻌㻱㻙㼙㼍㼕㼘㻦㻌㼙㼍㼟㼍㼙㼕㼠㼟㼡㻙㼕㼗㼑㼡㼏㼔㼕㻬㼙㼍㼥㼑㼗㼍㼣㼍㻚㼏㼛㻚㼖㼜㻌䠍䠊䛿䛨䜑䛻㻌
䝇䝷䝑䝅䝳❅⣲㻔௨ୗ 㻿㻺㻞㻕䛻䜘䜛෭༷䛷䛿ᅛయ䛾⼥ゎ₯⇕䛜฼⏝䛷䛝䜛䛣䛸䛜≉ᚩ䛷䛒䜛䚹䛣䜜䜎䛷ᡃ䚻䛿 㻿㻺㻞 䛾⇕ఏ㐩⋡䛾ィ 䜢⾜䛔䚸䛭䛾≉ᛶ䜢᳨ウ䛧䛶䛝䛯㼇㻝㼉䛜䚸⟶ෆᦙ㏦
ὶ୰䛷䛾ヨ㦂䛷䛒䜛䛯䜑ຍ⇕㒊㻔㻝㼙㻕䛻⁫␃䛩䜛᫬㛫䛜㠀ᖖ䛻▷䛟䚸⼥ゎ₯⇕䛜⇕ఏ㐩⋡䛻༑ศᐤ୚䛧䛯䛛୙᫂䛷䛒䛳䛯䚹䛭䛣䛷௒ᅇ᪂䛯䛻ヨ㦂⿦⨨䜢〇స䛧䚸⼥ゎ୰䛾 㻿㻺㻞 䛾⇕ఏ㐩⋡䛾ィ 䜢⾜䛺䛔ᾮయ❅⣲䛾䛭䜜䛸ẚ㍑䜢⾜䛺䛳䛯䚹㻌䛿ୖ᪼䛧䛶䛔䛟䚹䛣䜜䛿ᅛయ❅⣲䛾⼥ゎ䚸䛭䛾ᚋ䛾 㻸㻺㻞 ᗘ䛾ୖ᪼䛻క䛔⢓ᗘ䛜పୗ䛧ఏ⇕䛜ಁ㐍䛥䜜䜛䛯䜑䛸⪃䛘䛶䛔䜛䚹㻌
Hea ng test100922
SN2 100W 120rpm
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temperature (K)䠎䠊ᐇ㦂⿦⨨㻌ᐇ㦂⿦⨨䛿ᾮయ❅⣲䜢㈓䜑䜛䜺䝷䝇䝕䝳䝽䚸ྠෆ䛻タ⨨䛩䜛䝠䞊䝍㒊ཬ䜃ᨩᢾჾ䛛䜙ᡂ䜛䚹෇ᰕ≧䛾䝠䞊䝍㒊㻔㻲㼕㼓㻚㻝㻕䛿㟁Ẽ⤯⦕䛥䜜䛯䝠䞊䝍⥺䛸ቨ㠃 ᗘィ ⏝䛾⇕㟁ᑐ䠄㻭㼡㻲㼑㻙㻯㼞䠅䜢 㻲㻾㻼 䛾㌣య䛻ᕳ䛝䛴䛡䚸ఏ⇕䝉䝯䞁䝖䛷ᅛᐃ䛧䛶䛔䜛䚹䝠䞊䝍䛻༳ຍ䛩䜛㟁ຊ䛿䝇䝷䜲䝎䝑䜽䛷ㄪᩚ䛩䜛䚹ᨩᢾჾ䛿䠐䠑㼻䛻ഴ䛡䛯 㻢 ᯛ⩚᰿䜢䜲䞁䝞䞊䝍௜䛝䝰䞊䝍䛷ᅇ㌿䛥䛫䛶䛔䜛䚹䝠䞊䝍ෆ䛾 ᗘ䚸ὶయ䛾 ᗘ䚸䝠䞊䝍㟁ຊ㔞䛿䝻䜺䞊䛷ィ 䛧䝯䝰䝸ෆ䛻ಖᏑ䛩䜛䚹㻌㻢㻥㼒㼘㼡㼕㼐㻌㼠㼑㼙㼜㼑㼞㼍㼠㼡㼞㼑㻔㼕㼚㼚㼑㼞㻕
㼒㼘㼡㼕㼐㻌㼠㼑㼙㼜㼑㼞㼍㼠㼡㼞㼑㻔㼙㼕㼐㻕㼒㼘㼡㼕㼐㻌㼠㼑㼙㼜㼑㼞㼍㼠㼡㼞㼑㻔㼛㼡㼠㼑㼞㻕
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me㻝㻣㻦㻡㻣㻦㻜㻣

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㻲㼕㼓㻚㻞㻌㻱㼤㼍㼙㼜㼘㼑㻌㼛㼒㻌㼔㼑㼍㼠㼕㼚㼓㻌㼠㼑㼟㼠㼟㻌
Test results㻣㻜㻜㻢㻜㻜Heat transfer coeĸcient 䠄W/m2-K)

KHDWHUWKHUPRFRXSOHVVWLUUHU㻡㻜㻜㻠㻜㻜㻸㻺㻞㻌㻝㻜㻜㼃㻌㻢㻜㼞㼜㼙㻌㻜㻥㻛㻞㻞㻝㻜㻜㼃㻌㻢㻜㼞㼜㼙㻌㻜㻥㻛㻞㻞㻝㻜㻜㼃㻌㻢㻜㼞㼜㼙㻌㻝㻜㻛㻝㻞㻝㻡㻜㼃㻌㻢㻜㼞㼜㼙㻌㻝㻜㻛㻝㻝㻝㻜㻜㼃㻌㻝㻞㻜㼞㼜㼙㻌㻜㻥㻛㻞㻞㻝㻜㻜㼃㻌㻝㻞㻜㼞㼜㼙㻌㻝㻜㻛㻝㻞㻝㻡㻜㼃㻌㻝㻞㻜㼞㼜㼙㻌㻜㻥㻛㻞㻟㻝㻜㻜㼃㻌㻝㻤㻜㼞㼜㼙㻌㻜㻥㻛㻞㻟㻝㻡㻜㼃㻌㻝㻤㻜㼞㼜㼙㻌㻜㻥㻛㻞㻟

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㻝㻡㻜㻜

㻝㻤㻜㻜

㻲㼕㼓㻚㻝㻌㼀㼑㼟㼠㻌㼕㼚㼟㼠㼞㼡㼙㼑㼚㼠㻌㼒㼛㼞㻌㼔㼑㼍㼠㼕㼚㼓㻌 㻌㻲㼕㼓㻚㻟㻌㻴㼑㼍㼠㻌㼠㼞㼍㼚㼟㼒㼑㼞㻌㼏㼛㼑㼒㼒㼕㼏㼕㼑㼚㼠㻌䠏䠊ᐇ㦂㻌ᐇ㦂䛿䝠䞊䝍ຍ⇕㔞䛸ᨩᢾ⩚᰿ᅇ㌿ᩘ䜢ኚᩘ䛸䛧䛶ᐇ᪋䛧䛯䚹ヨ㦂䛻⏝䛔䜛 㻿㻺㻞 䛿䚸䝕䝳䝽ෆ䛻ᾮయ❅⣲㻔௨ୗ 㻸㻺㻞㻕䜢ὀධᚋ䚸┿✵ᘬ䛝䛷⏕ᡂ䛧䛯䚹䛭䛾⃰ᗘ㻔ᅛ┦⋡㻕䛿୕㔜Ⅼ฿㐩ᚋ䛛䜙 㻿㻺㻞 ⏕ᡂ⤊஢᫬䜎䛷䛾ᾮ㠃ῶᑡ㔞䛛䜙ồ䜑䛶䛔䜛䛜䚸ヨ㦂㛤ጞ᫬䛾ᅛ┦⋡䛿䜋䜌 㻞㻜㻑䛷䛒䛳䛯䚹⏕ᡂᚋ䛿タᐃᅇ㌿ᩘ䛷ᨩᢾ䜢⾜䛔ᅛᾮ䛜䜋䜌ᆒ୍䛻䛺䛳䛯䛣䛸䜢☜ㄆᚋ䚸ᡤᐃ䛾䝠䞊䝍⇕㔞䜢ຍ䛘䚸 ᗘኚ໬䜢ほ 䛧䛯䚹㻌䠑䠊䜎䛸䜑㻌㻿㻺㻞 䛛䜙 㻸㻺㻞 䛻⮳䜛㐃⥆ⓗ䛺ຍ⇕ᐇ㦂䜢ᐇ᪋䛧䚸௨ୗ䛾䛣䛸䜢᫂䜙䛛䛸䛧䛯䚹㻌䞉ᅛయ䛾⼥ゎ䛿᪩䛟䚸⇕䛜ຍ⇕㠃䛛䜙䛩䜀䜔䛟ᅛయ䛻ఏ㐩䛥䜜䜛䚹㻌䞉ᅛయ䛜Ꮡᅾ䛩䜜䜀ὶయ ᗘ䛿୍ᐃ㻔⼥ゎ ᗘ㻕䛻ಖ䛯䜜䜛䚹㻌䞉ቨ㠃䛛䜙䛾⇕ఏ㐩䛿 㻿㻺㻞 䛸 㻸㻺㻞 䛷䜋䜌ྠ➼䛸ᛮ䜟䜜䜛䛜䛥䜙䛻ᐇ㦂䛜ᚲせ䛷䛒䜛䚹㻌䠐䠊ᐇ㦂⤖ᯝ㻌ᐇ㦂䛾୍౛䜢 㻲㼕㼓㻚㻞 䛻♧䛩䚹䝠䞊䝍༳ຍᚋ䝠䞊䝍ቨ㠃 ᗘ䛿ୖ᪼䛩䜛䛜ὶయ ᗘ䛿ຍ⇕๓䛸ྠ୍䛾 ᗘ䜢ಖ䛱䚸䛭䛾ᚋ䛻ቨ㠃䚸ὶయ ᗘ䛸䜒䛻୍ᐃ㏿ᗘ䛷ୖ᪼䛧䛶䛔䛟䚹䛣䜜䛿䚸ᅛయᏑᅾ୰䛿⼥ゎ₯⇕䛻䜘䜚ὶయ ᗘ䛜୍ᐃ䜢ಖ䛱䚸ᅛయᾘ⁛ᚋ䛻 ᗘ䛜ୖ᪼䛧䛶䛔䛟䛯䜑䛸⪃䛘䛶䛔䜛䚹㻌
ヨ㦂䛛䜙ồ䜑䛯⇕ఏ㐩⋡䜢 㻲㼕㼓㻚㻟 䛻♧䛩䚹ྠᅗ୰䛾 㻿㻺㻞 䛸㻸㻺㻞 䛾༊ศ䛿ὶయ ᗘ䛜ୖ᪼䜢㛤ጞ䛧䛯᫬Ⅼ䛸䛧䛶䛔䜛䚹䜎䛯䚸ヨ㦂㛤ጞ᫬䛿䝠䞊䝍ቨ㠃 ᗘ䛜ୖ᪼䛧䛶䛔䛟㏵୰䛷䛒䜚䚸⇕ఏ㐩⋡䛜Ᏻᐃ䛧䛶䛔䛺䛔䛜䚸䛭䛾ᚋ䚸⦆䜔䛛䛻⇕ఏ㐩⋡ㅰ㎡ᮏ◊✲䛻㛵䛧䚸㈈ᅋἲேᅜ㝿㉸㟁ᑟ⏘ᴗᢏ⾡䝉䞁䝍䞊㻌 ㉸㟁ᑟᕤᏛ◊✲ᡤ㻌 ሷཎ㻌 ⼥㻌 ᡤ㛗䛻㐺ษ䛛䛴ⓗ☜䛺䜰䝗䝞䜲䝇䜢㡬䛔䛯䚹䛣䛣䛻῝䛟ㅰព䜢⾲䛧䚸䛚♩䜢⏦䛧ୖ䛢䜛䚹㻌ཧ⪃ᩥ⊩㻌㻝䠊㻹㻚㻌㻵㼗㼑㼡㼏㼔㼕㻘㻌㼑㼠㻌㼍㼘㻚㻦㻌 䇾㼀㻱㻵㻻㻺㻌㻷㻻㻳㻭㻷㼁䇿㻘㻌㻠㻞㻌㻔㻞㻜㻜㻣㻕㻌㻥㻢㻙㻝㻜㻝㻌㻔㼕㼚㻌㻶㼍㼜㼍㼚㼑㼟㼑㻕㻌㻞㻚㻌 㻹㻚㻌㻵㼗㼑㼡㼏㼔㼕㻘㻌㼑㼠㻌㼍㼘㻚㻦㻌 䠝䠾䡏䡐䡎䠽䠿䡐㻌 䡋䡂㻌 㻯㻿㻶㻌㻯㼛㼚㼒㼑㼞㼑㼚㼏㼑㻘㻌㼂㼛㼘㻚㻌㻤㻝㻌㻔㻞㻜㻜㻥㻕㻌㼜㻚㻡㻤㻌― 66 ―

第83回

2010年度秋季低温工学・超電導学会

1C-p09

熱伝達 / 沸騰ᚤᑠ㔜ຊୗ䛻䛚䛡䜛 㻴㼑㻌㻵㻵 ⭷Ἓ㦐䛾⵨Ẽ⭷ᣲື㻌
Vapor behavior of film boiling in saturated He II under micro gravity using drop tower㻌㧗⏣㻌 ༟䠄⟃Ἴ኱Ꮫ䠅䠗ᮌᮧ㻌 ㄔᏹ㻘㻌 ᒸᮧ㻌 ᓫᗈ䠄䠧䠡䠧䠅䠗ᮧୖ㻌 ṇ⚽䠄⟃Ἴ኱Ꮫ䠅㻌㼀㻭㻷㻭㻰㻭㻌㻿㼡㼓㼡㼞㼡㻌㻔㼁㻚㻌㼛㼒㻌㼀㼟㼡㼗㼡㼎㼍㻕䠗㻌 㻷㻵㻹㼁㻾㻭㻌㻺㼛㼎㼡㼔㼕㼞㼛㻘㻌㻻㻷㻭㻹㼁㻾㻭㻌㼀㼍㼗㼍㼔㼕㼞㼛㻌㻔㻷㻱㻷㻕㻧㻌㻹㼁㻾㻭㻷㻭㻹㻵㻌㻹㼍㼟㼍㼔㼕㼐㼑㻌㻔㼁㻚㻌㼛㼒㻌㼀㼟㼡㼗㼡㼎㼍㻕㻌 㻌㻱㻙㼙㼍㼕㼘㻦㻌㼠㼍㼗㼍㼐㼍㻬㼗㼦㻚㼠㼟㼡㼗㼡㼎㼍㻚㼍㼏㻚㼖㼜㻌 㻌㻌㸬ࡣࡌࡵ࡟
ᚤᑠ㔜ຊୗࡢ㣬࿴ +H,, ࡟࠾࠸࡚ࡣࠊࡑࡢࢧࣈࢡ࣮ࣝ
ᗘࡀ↓࠸⎔ቃ࡛࠶ࡿ஦࠿ࡽࠊ୺࡟Ἓ㦐㝈⏺࡟ࡘ࠸࡚◊✲ࡀ⾜ࢃࢀ࡚ࡁࡓࠋࡋ࠿ࡋ࡞ࡀࡽࠊᐇ㦂ࡢᅔ㞴ᛶ࠿ࡽᐇ㦂౛ࡀ㠀ᖖ࡟ᑡ࡞ࡃࠊ≉࡟Ἓ㦐ᣲື࡟ࡘ࠸࡚ࡣࠊ᫂ࡽ࠿࡟
࡞ࡗ࡚࠸࡞࠸ࠋᡃࠎࡣୡ⏺࡛ึࡵ࡚ࠊⴠୗሪࢆ౑⏝ࡋࡓᚤᑠ㔜ຊ࡟࠾ࡅࡿ +H,, ྍど໬ᐇ㦂ࢩࢫࢸ࣒ࢆᵓ⠏ࡋࡓࠋከᵝ࡞᮲௳ୗ࡛ࡢἛ㦐ᐇ㦂ࢆ⧞ࡾ㏉ࡍ஦࡛᫂ࡽ࠿࡟࡞
ࡗࡓ≉ᚩ࡟ࡘ࠸࡚ሗ࿌ࡍࡿࠋ
㸬⮬⏤ⴠୗሪ
ᚤᑠ㔜ຊ⎔ቃࢆᚓࡿࡓࡵࠊ⏘⥲◊໭ᾏ㐨ࢭࣥࢱ࣮࡟タ⨨ࡉࢀࡓ㛤ᨺᆺࡢ⮬⏤ⴠୗᦚࢆ⏝࠸ࡓࠋࡇࡢⴠୗሪࡣࠊ 㔜࢝ࣉࢭࣝ᪉ᘧ࡛࠶ࡾࠊᐇ㦂⿦⨨ࡀᦚ㍕ࡉࢀࡿෆഃࡢ࢝
ࣉࢭࣝࡣࠊ✵Ẽ᢬ᢠࡢຠᯝࢆᢚ࠼ࡽࢀࡿⅭࠊ[ *ᮍ‶ࡢ㉁ࡢ㧗࠸ᚤᑠ㔜ຊሙࡀ VHF ᚓࡽࢀࡿࠋ 㔜࢝ࣉࢭࣝࡣ㟁☢▼࡟ࡼࡗ࡚ୖ᪉࠿ࡽᨭ࠼ࡽࢀࠊⴠୗ㛤ጞࢆ᧯సࡍࡿࠋ⣙ P ࡢ⮬⏤ⴠୗࡢᚋࠊ᭱ୗ᪉ Pࠊᖹᆒ㸴㹅⛬ᗘࡢไື㊥㞳ࢆ⤒࡚ࠊไṆࡍࡿࠋ㸬ᐇ㦂⿦⨨ⴠୗሪࡢチᐜ௙ᵝࡣࠊᐇ㦂⿦⨨ࡢ㔜㔞ࡀ NJ ᮍ‶ࠊࢧ࢖ࢬࡣȭ;PP ௨ෆ࡛࠶ࡿࠋ)LJ ࡟ᐇ㦂࡟⏝࠸ࡓྍど໬❆௜ᑠᆺࢡࣛ࢖࢜ࢫࢱࢵࢺࡢᴫ␎ᅗࢆ♧ࡍࠋࢡࣛ࢖࢜ࢫࢱࢵࢺࠊᑠᆺ࣏ࣥࣉࠊ㧗㏿ᗘ࣓࢝ࣛࠊࢹ࣮ࢱࣟ
࣮࢞ࠊࣛࢵࣉࢺࢵࣉ 3& ࠿ࡽᵓᡂࡉࢀࡓᐇ㦂⿦⨨ࡢ㔜㔞ࡣ⣙ NJ ࡛࠶ࡗࡓࠋࢡࣛ࢖࢜ࢫࢱࢵࢺ࡟ࡣࠊȭPP ࡢྍど໬❆ࡀタ⨨ࡉࢀ࡚࠾ࡾࠊ/(' ࣛ࢖ࢺࢆග※࡟ࠊࢸࣞࢭࣥ
ࢺࣜࢵࢡࣞࣥࢬࢆ㓄ࡋࡓ㧗㏿ᗘ࣓࢝ࣛ࡟ࡼࡗ࡚ᐦᗘኚ
໬࡟ឤᗘࡢ࠶ࡿࢩࣕࢻ࢘ࢢࣛࣇἲࢆᵓᡂࡋ࡚࠸ࡿࠋᐇ㦂ᵴ࡟ࡣȭPP ࡢ࣐ࣥ࢞ࢽࣥ⥺ࠊ686 ⥺ࢆࣄ࣮ࢱ࡜
ࡋ࡚౑⏝ࡋࠊἛ㦐ࢆᘬࡁ㉳ࡇࡋࡓࠋࣄ࣮ࢱ࡟ࡣⴠୗ㛤ጞ ⛊๓࠿ࡽⴠୗ⤊஢ࡲ࡛ࠊ୍ᐃࡢ⇕ὶ᮰ࢆ༳ຍࡋࡓࠋ
㸬ᐇ㦂⤖ᯝ
ᚤᑠ㔜ຊୗ࡟࠾ࡅࡿ⵨Ẽ⭷ࡢᵝ┦ࡣࠊ㸯* ⎔ቃୗ⵨Ẽ⭷࡟ẚࡋ࡚㠀ᖖ࡟኱ࡁ࡞⵨Ẽ⭷࡜࡞ࡿࠋ)LJ ࡣࠊࡑࢀࡒࢀⴠୗ㛤ጞࡢ▐㛫࠿ࡽ⵨Ẽ⭷ࡀᡂ㛗ࡍࡿᵝᏊࢆ♧ࡋ࡚࠸ࡿࠋ⵨Ẽ⭷ࡣⴠୗ┤๓ࡢ⵨Ẽ⭷ࡢᙧ≧࡟኱ࡁࡃᙳ㡪ࡉࢀ࡚࠸ࡿࡇ࡜ࡀศ࠿ࡿࠋࡲࡓࠊ)LJ ࡟♧ࡍࢣ࣮ࢫ࡛ࡣࠊ* ⎔ቃୗ࡛ࡣἛ㦐ࡋ࡚࠾ࡽࡎࠊᚤᑠ㔜ຊ≧ែ࡜࡞ࡗ࡚࠿
ࡽἛ㦐ࢆ㛤ጞࡋࡓࡶࡢ࡛࠶ࡿࠋ⵨Ẽ⭷ࡀ᣺ືࡋ࡞ࡀࡽࣄ
࣮ࢱ඲ᇦ࡟ᗈࡀࡿᵝᏊࡀᤊ࠼ࡽࢀ࡚࠸ࡿࠋ⣙ :FP ࡼࡾࡶప࠸⇕ὶ᮰࡟࠾࠸࡚ࡣࠊᚤᑠ㔜ຊୗ࡟࠾࠸࡚ࡶἛ㦐ࡀ☜ㄆࡉࢀࡎࠊᚤᑠ㔜ຊୗ࡟࠾ࡅࡿ⮫⏺⇕ὶ᮰ࡣ :FP ⛬ᗘ࡜⪃࠼ࡽࢀࡿࠋ
ࡋ࠿ࡋ࡞ࡀࡽࠊୖグࡢࡼ࠺࡟␗࡞ࡿ⵨Ẽ⭷ᵝ┦࡟ࡶ࠿࠿ࢃࡽࡎࠊ)LJ ࡟♧ࡍࡼ࠺࡟ࠊࡑࡢ⇕ఏ㐩⋡ࡣࠊ ᗘࡸ⇕ὶ᮰࡟ࡼࡽࡎ :FP.ࡢ㛫࡛ࠊ࡯ࡰྠ⛬ᗘࡢ್ࢆ࡜ࡗࡓࠋࡉࡽ࡟ࠊᖹ⾮࡟㐩ࡍࡿ⦆࿴᫬㛫ࡣ࠸ࡎࢀࡢሙྜࡶ⣙  ⛊ᮍ‶࡛࠶ࡾࠊ)LJ ࡢࡼ࠺࡞ᚤᑠ㔜ຊୗ࡟࡞ࡗࡓᚋἛ㦐ࢆጞࡵࡓࡶࡢ࡟࠾࠸࡚ࡶྠᵝ࡛࠶ࡗࡓࠋ㻌㻌ㅰ㎡⏘⥲◊໭ᾏ㐨䝉䞁䝍䞊䛻䛚䛡䜛⮬⏤ⴠୗሪ౑⏝䛻䛚䛔䛶䚸Ọ஭ ⚽᫂ࠊ㛫ᐑ ᖿே㸦⏘⥲◊㸧ࡢ୧Ặ࡟ࡣከ኱࡞༠
ຊࢆ࠸ࡓࡔ࠸ࡓࠋ


ཧ⪃ᩥ⊩
㻝㻚

ᮌᮧ ㄔᏹ㸪㧗⏣ ༟㸪௚͆ᚤᑠ㔜ຊᐇ㦂ࢆ┠ᣦࡋࡓᑠᆺ
ྍど໬❆௜㉸ὶືࢡࣛ࢖࢜ࢱࢵࢺࡢ㛤Ⓨ͇ࠊప ᕤᏛ
9RO  SS


(J.T. Valve)

Reservoir
Tank (4.2 K)㻌
Fig.1 schematic illustration of the small cryostat with optical
windows
Fig.2 a time series of visualization results of He II film boilingin the transition from 1G to PG state with a parallelvapor-liquid interface. 1.75 K 2.56 W/cm2 (a) 0 s (starting freefall) (b) 43 ms (c) 87 ms (d) 130 ms㻌
Fig.3 a time series of growing up of gas-liquid interface inPG 1.92 K 2.63 W/cm2 (a) 0 s (starting free fall) (b) 43 ms (c)87 ms (d) 130 ms (e) 152 ms㻌㻌
Fig.4 a time series of initial generation of boiling under PG
1.93 K 1.416 W /cm2 (a) 152 ms(b) 173 ms (c) 195ms (d)216ms

Fig.5 heat transfer coefficient of He II film boiling under P-G― 67 ―

第83回

2010年度秋季低温工学・超電導学会

1C-p10

冷却システム (2)ᤄධ⟶ᚄ  ࢖ࣥࢳࡢ࣒࣊ࣜ࢘ᚠ⎔⿦⨨
A helium circulation system with 1/2 inch insert tube㻌Ṋ⏣㻌ᖖᗈ䠄ᮾி኱Ꮫ䠅䚸ᒸᮏ㻌㞞⨾䚸∦᱒㻌ၨᚿ䠄㻔ᰴ䠅᪂㡿ᇦᢏ⾡◊✲ᡤ䠅㻌㼀㼟㼡㼚㼑㼔㼕㼞㼛㻌㼀㼍㼗㼑㼐㼍㻔㼀㼔㼑㻌㼁㼚㼕㼢㻚㻌㼛㼒㻌㼀㼛㼗㼥㼛㻕㻘㻌㻹㼍㼟㼍㼥㼛㼟㼔㼕㻌㻻㼗㼍㼙㼛㼠㼛㻌㼍㼚㼐㻌㻷㼑㼕㼟㼔㼕㻌㻷㼍㼠㼍㼓㼕㼞㼕㻌㻔㻲㼞㼛㼚㼠㼕㼑㼞㻌㼀㼑㼏㼔㼚㼛㼘㼛㼓㼥㻌㻵㼚㼟㼠㼕㼠㼡㼠㼑㻘㻌㻵㼚㼏㻚㻕㻌㻱㻙㼙㼍㼕㼘㻦㻌㼠㼍㼗㼑㼐㼍㻬㼎㼞㼍㼕㼚㻚㼗㻚㼡㻙㼠㼛㼗㼥㼛㻚㼍㼏㻚㼖㼜㻌㻌䜎䛯䚸㻹㻱㻳⏝㻴㻯㻿䛷䛿䚸㻟䛴䛾ὶయ䜢┿✵ᒙ䛷ศ㞳䛧䛯ከ㻝䠊䛿䛨䜑䛻㻌
㔜ྠᚰ⟶䛾୰䜢ὶ䛧䚸኱Ẽ䛾⇕䛜୍␒኱ษ䛺ᾮయ䝦䝸䜴䝮䛻ᡃ䚻䛿 㻹㻱㻳䠄⬻☢ィ䠅⏝䝦䝸䜴䝮ᚠ⎔⿦⨨䠄㻴㻯㻿䠅䜢㛤Ⓨ䛧䚸౵ධ䛧䛺䛔䜘䛖䛻䛧䛯䚹䛭䜜䛮䜜䛾ὶ㊰䜢⇕ⓗ䛻ศ㞳䛩䜛ᚲ䛭䛾 㻴㻯㻿 䜢ᮾி኱Ꮫ䛾 㻠㻠㻜 䝏䝱䞁䝛䝹 㻹㻱㻳 䛻ᦚ㍕䛧䛶䚸
せ䛜䛒䜛䛯䜑䚸䛹䛖䛧䛶䜒ᤄධ⟶䛾ᚄ䛜ኴ䛟䛺䛳䛯䚹௒ᅇ䛿䚸㻴㻯㻿 䜢㐠㌿୰䛻 㻹㻱㻳 ィ 䛜ྍ⬟䛷䛒䜛䛣䛸䚸䝷䞁䝙䞁䜾䝁䝇┦஫䛻㻿㻵䛷⇕ศ㞳䛧䛯㻟䛴䛾䝟䜲䝥䜢䚸䜎䛸䜑䛶䝅䞊䝹䝗⟶䛷䝖䜢 㻝㻛㻝㻜 ௨ୗ䛻ฟ᮶䜛䛣䛸䛺䛹䜢ᐇド䛧䛶䛝䛯䚹䛧䛛䛧䛺䛜䜙䚸⇕䝅䞊䝹䝗䛩䜛䛣䛸䛻䜘䛳䛶䚸ᤄධ⟶䛾ኴ䛥䜢ᢚ䛘䜛䛣䛸䛸䚸⇕ᙜヱ 㻴㻯㻿 䛿䝖䝷䞁䝇䝣䜯䞊䝏䝳䞊䝤䠄㼀㼀䠅䛾ᤄධ⟶䛜 㻟㻛㻞 䜲䞁౵ධ㔞䜢ᢚ䛘䜛䛣䛸䛾୧❧䜢ᅗ䛳䛯䚹ᐇドᐇ㦂䛾⤖ᯝ䚸ᮏ䝏䛷䛒䛳䛯䛯䜑䚸୍⯡䛾 㻹㻱㻳 ⿦⨨䛻฼⏝䛩䜛䛻䛿฼⏝ 㻹㻱㻳㻴㻯㻿䛿㻳㻹෭෾ᶵ㻝ྎ䛷෭༷䛧䛯䛻䜒䛛䛛䜟䜙䛪䚸㻞ྎ䛾㻳㻹䛾ᨵ㐀䜢ᚲせ䛸䛧䛶䛔䛯䚹ᤄධ⟶䛾ཷධ䜜䝫䞊䝖䛾ᚄ䜢 㻟 ಸ෭෾ᶵ䛷෭༷䛥䜜䛯㻹㻱㻳⏝㻴㻯㻿䛾ᾮ໬⬟ຊ䛾㻤㻝䠂௨ୖ䜢䛻䛩䜛䛰䛡䛷䛒䜛䛜䚸⤖ᯝⓗ䛻䛿 㻹㻱㻳 䝕䝳䝽඲య䜢ᨵ㐀䛧䛺㐩ᡂ䛧䛯䚹㻌
䛟䛶䛿䛺䜙䛺䛔䛯䜑฼⏝䛜ᅔ㞴䛷䛒䛳䛯䚹䛭䛣䛷䚸ᤄධ⟶ᚄ䜢㻌ᶆ‽䛾 㻝㻛㻞 䜲䞁䝏䛻䛧䚸฼⏝ᶵჾ䛾 㼀㼀 ᤄධཱྀ䛻ᤄධ䛩䜛䛰ཧ⪃ᩥ⊩㻌䛡䛷䚸୍⯡䛾㉸ఏᑟ฼⏝ ᐃᶵჾ䛻฼⏝ྍ⬟䛺 㻴㻯㻿 䜢㛤㻝㻚 㼀㻌㼀㼍㼗㼑㼐㼍㻘㻌㼑㼠㻌㼍㼘㻚㻦㻯㼞㼥㼛㼓㼑㼚㼕㼏㼟㻘㻌㼂㼛㼘㻚㻌㻠㻤㻘㻌㻔㻞㻜㻜㻤㻕㻌㼜㻚㻢㻙㻝㻝㻌Ⓨ䛧䚸ᾮ໬⬟ຊ䜢ィ 䛧䛯䛾䛷ሗ࿌䛩䜛䚹㻌㻞㻚 㼀㻌㼀㼍㼗㼑㼐㼍㻘㻌㼑㼠㻌㼍㼘㻚㻦㻯㼞㼥㼛㼓㼑㼚㼕㼏㼟㻘㻌㼂㼛㼘㻚㻌㻠㻥㻘㻌㻔㻞㻜㻜㻥㻕㻌㼜㻚㻝㻠㻠㻙㻝㻡㻜㻌㻌㻞䠊㻴㻯㻿䛾䝁䞁䝉䝥䝖㻌⢭ᐦィ ᶵ䛻⏝䛔䜙䜜䛶䛔䜛㻿㻽㼁㻵㻰䛿㻘㉸ఏᑟ≧ែ䛻䛒䜛䛯䜑䚸䛭䜜䛜Ⓨ⏕䛩䜛⇕䛿ᴟ䜑䛶ᑠ䛥䛔䚹䜎䛯䚸䝦䝸䜴䝮䜺䝇䛛䜙ᾮయ䝦䝸䜴䝮䜢⏕ᡂ䛩䜛㐣⛬䛷䛿䚸ᖖ 䝦䝸䜴䝮䛛䜙ᩘ༑㻷䛾䝦䝸䜴䝮䜺䝇䜢స䜛䛣䛸䛿ẚ㍑ⓗᐜ᫆䛰䛜䚸䛭䛾ప 䜺䝇䜢᭦䛻෭䜔䛧䛶䚸ᾮయ䝦䝸䜴䝮䜢స䜛䛯䜑䛻኱㔞䛾䜶䝛䝹䜼䞊䛜ᚲせ䛻䛺䜛䚹䛭䛣䛷䚸⏕ᡂ䛜ᐜ᫆䛺ప 䝦䝸䜴䝮䜺䝇䜢䝕䝳䝽䛾䝛䝑䜽䝏䝳䞊䝤㒊䛻኱㔞䛻ὶ䛧䝕䝳䝽䜈䛾౵ධ⇕䜢ዣ䛖䛣䛸䛻䜘䜚䚸䝕䝳䝽䛾ᾮయ䝦䝸䜴䝮㒊䛻౵ධ䛩䜛⇕䜢ᑡ䛺䛟䛧䚸ᾮయ䝦䝸䜴䝮䛿ฟ᮶䜛䛰䛡⵨Ⓨ┤ᚋ䛻ᅇ཰䛧䛶䛩䛠䛻ᾮ໬䛧䛶ᡠ䛩᪉ᘧ䛾䝦䝸䜴䝮ᚠ⎔䝅䝇䝔䝮䜢㛤Ⓨ䛧䛶䛝䛯䚹෭෾ᶵ䛿ಙ㢗ᛶ䛾㧗䛔䠐㻷㻝㻚㻡㼃㻳㻹෭෾ᶵ䜢⏝䛔䚸ᚠ⎔⿦⨨ෆ䛻ΰධ䛩䜛୙⣧≀䜢⢭〇䛧䚸⢭〇ჾ䛜୙⣧≀䛷㛢ሰ䛧䛯ሙྜ⮬ື㐠㌿䛷㛢ሰ䜢ゎ㝖䛷䛝䜛䝅䝇䝔䝮䜢㛤Ⓨ䛧䛶䛝䛯䚹㻌௒ᅇ䛿䚸㼀㼀ᤄධ⟶䛾ኴ䛥䜢㻟㻛㻞䜲䞁䝏䛛䜙㻝㻛㻞䜲䞁䝏䛸䛧䛶䚸୍⯡䛾ᶵჾ䛻ᶵჾ䛾ᨵ㐀↓䛟฼⏝ྍ⬟䛸䛩䜛䛸ඹ䛻䚸෭෾㻲㼕㼓㻚㻝㻌㻴㻯㻿㻌㼣㼕㼠㼔㻌㻟㻛㻞㻌㼕㼚㼏㼔㻌㼕㼚㼟㼑㼞㼠㻌㼠㼡㼎㼑㻌㼒㼛㼞㻌㼍㻌㻹㻱㻳㻚㻌ᶵ䜢䠍ྎ䛸䛧䛶䚸⿦⨨඲య䜢ᑠᆺ䛻䛩䜛䛣䛸䜢ヨ䜏䛯䚹㻌㻌㻟䠊㛤Ⓨ⿦⨨㻌㻲㼕㼓㻚㻝䛿䚸ᮾி኱Ꮫ䛾㻠㻠㻜䝏䝱䞁䝛䝹䝧䜽䝖䝹ᆺ㻹㻱㻳⿦⨨䛻ᦚ㍕䛥䜜䛶䚸㻝㻚㻡ᖺ௨ୖᐇドヨ㦂䜢⥆䛡䛶䛔䜛㻴㻯㻿䛾እほ䜢♧䛩䚹㻝㻚㻡㼃䠐㻷㻳㻹෭෾ᶵ䜢㻞ྎ⏝䛔䛶䚸㻝㻠䟒㻛᪥௨ୖ䛾ᾮయ䝦䝸䜴䝮ᚠ⎔䜢㐩ᡂ䛧䚸㻴㻯㻿䜢㐠㌿୰䛷䜒㏻ᖖ䛾㻹㻱㻳ィ 䛻ᨭ㞀䛜↓䛔䛣䛸䛜☜ㄆ䛥䜜䛶䛔䜛㼇㻝㻘㻞㼉䚹㻌㻲㼕㼓㻚㻞䛿䚸௒ᅇ㛤Ⓨ䛧䛶䛔䜛㻴㻯㻿䜢ヨ㦂䝕䝳䝽䛷ヨ㦂㐠㌿୰䛾ᵝᏊ䜢♧䛩䚹ᮏ㻴㻯㻿䛿䚸㻝㻚㻡㼃䠐㻷㻳㻹෭෾ᶵ䜢㻝ྎ⏝䛔䜛䛾䛷䚸෭෾䝏䝱䞁䝞䛜኱ᖜ䛻ᑠ䛥䛟䛺䛳䛶䛔䜛䚹୍⯡䛾㉸ఏᑟᶵჾ䛾㞄䛻⨨䛝䚸ᾮయ䝦䝸䜴䝮䜢㻤䟒㻛᪥௨ୖ䛾ᚠ⎔䛥䛫䜛䛣䛸䜢┠ᶆ䛸䛧䛶䛔䜛䚹ᚑ᮶䛾㻴㻯㻿䛾㼀㼀ᤄධ⟶䛿䚸ᾮయ䝦䝸䜴䝮䚸⵨Ⓨ┤ᚋ䛾䝦䝸䜴䝮䜺䝇䠄 ᗘ⣙㻢㻷䠅䛚䜘䜃䝕䝳䝽䜢෭༷䛩䜛䛯䜑䛾⣙㻠㻜㻷䛾䝦䝸䜴䝮䜺䝇䜢ྠ㍈ከ㔜⟶䛷ὶ䛩䛯䜑䛻䚸ኴ䛥䛜㻟㻛㻞䜲䞁䝏䛻䛺䛳䛶䛔䛯䚹≉䛻䚸จ⦰ჾ䛻䛚䛡䜛ᾮ໬䛻䜘䜛䝦䝸䜴䝮䜺䝇䛾⮬↛྾ᘬ䛻䜘䜛ᚠ⎔䜢ᐜ᫆䛻䛩䜛䛯䜑䛻䚸ప 䝦䝸䜴䝮䜺䝇䛾ᖐ㑏㊰䜢ᗈ䜑䛻⏝ព䛧䛶䛔䛯䚹䛧䛛䛧䛺䛜䜙䚸䜺䝇䛜ప 䛺䛾䛷ὶ䜜䜛䜺䝇䛾㔞䛜ᑡ䛺䛔䛣䛸䚸⢓ᛶ᢬ᢠ䜒ᑠ䛥䛔䛣䛸䛺䛹䛛䜙䚸኱䛝䛺ὶ㊰䛿ᚲせ䛺䛔䛾䛷኱ᖜ䛻ὶ㊰䜢⊃䛟䛧䛯䚹䛩䛺䜟䛱䚸㼀㼀ᤄධ⟶䛾ኴ䛥䜢ᶆ‽䛾㻝㻛㻞䜲䞁㻲㼕㼓㻚㻞㻌㻴㻯㻿㻌㼣㼕㼠㼔㻌㻝㻛㻞㻌㼕㼚㼏㼔㻌㼕㼚㼟㼑㼞㼠㻌㼠㼡㼎㼑㻌㼒㼛㼞㻌㼓㼑㼚㼑㼞㼍㼘㻌䝏䛻䛩䜛䛯䜑䚸⵨Ⓨ┤ᚋ䛾䝦䝸䜴䝮䜺䝇䜢จ⦰ჾ䛻ᑟධ䛩䜛㼟㼡㼜㼑㼞㼏㼛㼚㼐㼡㼏㼠㼕㼢㼑㻌㼍㼜㼜㼍㼞㼍㼠㼡㼟㼑㼟㻚㻌䛯䜑䛾ὶ㊰䜢㻝㻛㻞㻜௨ୗ䛻䛧䛯䚹㻌― 68 ―

第83回

2010年度秋季低温工学・超電導学会

1C-p11஧㔜䝧䞊䝍ᔂቯ

冷却システム (2)ᐃჾ 㻰㻯㻮㻭㻙㼀㻟 ⏝↓෭፹㉸ఏᑟ䝋䝺䝜䜲䝗㟁☢▼䛾㛤Ⓨ㻌㻯㼞㼥㼛㼓㼑㼚㼕㼏㻌㼒㼞㼑㼑㻌㼟㼡㼜㼑㼞㼏㼛㼚㼐㼡㼏㼠㼕㼚㼓㻌㼟㼛㼘㼑㼚㼛㼕㼐㻌㼒㼛㼞㻌㼐㼛㼡㼎㼘㼑㻌㼎㼑㼠㼍㻌㼐㼑㼏㼍㼥㻌㼐㼑㼠㼑㼏㼠㼛㼞㻌㻰㻯㻮㻭㻙㼀㻟㻌㻌ᕝ஭㻌 ṇᚨ䠈㻌 ᵐ⏣㻌 ᗣ༤䠈㏆⸨㻌 Ⰻஓ䠈㻌 ▼ཎ㻌 ಙᘯ䠈㻌 ᫓ᒣ㻌 ᐩ⩏䠄㻷㻱㻷䠅㻌㻷㻭㼃㻭㻵㻌㻹㼍㼟㼍㼚㼛㼞㼕䠈㻌 㻹㻭㻷㻵㻰㻭㻌㼅㼍㼟㼡㼔㼕㼞㼛䠈㻌 㻷㻻㻺㻰㻻㼁㻌㼅㼛㼟㼔㼕㼚㼍㼞㼕䠈㻌 㻵㻿㻴㻵㻴㻭㻾㻭㻌㻺㼛㼎㼡㼔㼕㼞㼛䠈㻌 㻴㻭㻾㼁㼅㻭㻹㻭㻌㼀㼛㼙㼕㼥㼛㼟㼔㼕䠈㻌㻱㻙㼙㼍㼕㼘㻦㻌㼙㼍㼟㼍㼚㼛㼞㼕㻚㼗㼍㼣㼍㼕㻬㼗㼑㼗㻚㼖㼜㻌
㻌
㻌
㠀㏻㟁
᫬㻔㼃㻕

㏻㟁
᫬㻔㼃㻕

㻌㻌

㠀㏻㟁
᫬㻔㼃㻕

㏻㟁
᫬㻔㼃㻕

䝃䝫䞊䝖㻌

㻞㻚㻞㻌

㻞㻚㻞㻌

䝁䜲䝹䞉䝅䞊
䝹䝗䝃䝫䞊䝖㻌

㻜㻚㻞㻤

㻜㻚㻞㻤

ィ ⥺㻌

㻜㻚㻡㻌

㻜㻚㻡㻌

ィ ⥺㻌

㻜㻚㻝㻌

㻜㻚㻝

㻜㻚㻥㻌

㻜㻚㻥㻌

ṧ␃䜺䝇㻌

㻜㻚㻜㻠

㻜㻚㻜㻠

㻌㻌

㻝㼟㼠㻌 㻌 ṧ␃䜺䝇㻌
㻤㻜㻷
㍽ᑕ㻌

㻝㻣㻚㻥

㻝㻣㻚㻥㻌

㍽ᑕ㻌

㻜㻚㻥㻠

㻜㻚㻥㻠

ᑠィ㻌

㻞㻝㻚㻡

㻞㻝㻚㻡㻌

㟁ὶ䝸䞊䝗㻌㻜㻚㻢㻞㻜㻚㻤㻥㟁ὶ䝸䞊䝗㻌

㻝㻟㻚㻟

㻢㻟㻚㻢㻌

ບ☢䝻䝇
㻛㻢㻜㼙㼕㼚㻌

㻜㻌

㻜㻚㻜㻡

ྜィ㻌

㻟㻠㻚㻤

㻤㻡㻚㻝㻌

ྜィ㻌

㻝㻚㻥㻥

㻞㻚㻟㻝

㻌
㻌
㻌
㻌
㻌
㻌
㻌

― 69 ―

㻞㼚㼐㻌 㻌㻠㻚㻡㻷㻌⾲ 㻝㻚㻌 ⇕㈇Ⲵィ⟬㻌ᅗ 㻝㻚㻌 ෭෾⬟ຊ≉ᛶ㻌ࢥ࢖ࣝ㸤㍽ᑕࢩ࣮ࣝࢻ෭༷
2 ẁ GM ෭෾ᶵ㟁ὶ࣮ࣜࢻ෭༷
1 ẁ GM ෭෾ᶵບ☢㟁※ࢡࣛ࢖࢜ࢫࢱࢵࢺ

ࢥ࢖ࣝ㸤ࢧࢺ࣮ࢺࢩࣜࣥࢲ࣮ᅗ 㻞㻚㻌 ↓෭፹㉸ఏᑟ䝋䝺䝜䜲䝗෭༷ᴫᛕᅗ㻌

300

PC001I(coil end A)
PC003I(coil center)
PC005I(coil end B)
CX003I(coil senter)
CX201(4K cold atage)

250

Temperature(K)䠍䠊 䛿䛨䜑䛻㻌ᾮయ䝦䝸䜴䝮䝍䞁䜽䛛䜙㛫᥋ఏᑟ෭༷䛷෭༷䜢⾜䛳䛶䛔䛯䃥㻝㻔㼙㻕㽢㻸㻝㻚㻟㻔㼙㻕䛾Ᏹᐂ⢏Ꮚ⥺ほ Ẽ⌫ᐇ㦂⏝㉸ఏᑟ䝋䝺䝜䜲䝗㻔㻮㻱㻿㻿㻕䜘䜚䝍䞁䜽䜢ྲྀእ䛧䛶 㻳㻹 ෭෾ᶵ䜢ྲྀ௜䛡䚸↓෭፹㉸ఏᑟ䝋䝺䝜䜲䝗㟁☢▼䜈䛸ᨵ㐀䛧䛯䚹㉸ఏᑟ䝋䝺䝜䜲䝗䛾෭༷ཬ䜃ບ☢䜢⾜䛳䛯䛾䛷䚸䛭䛾⤖ᯝ䛻䛴䛶ሗ࿌䛩䜛䚹㻌㻌䠎䠊 ᑠᆺ෭෾ᶵ䛻䜘䜛ఏᑟ㛫᥋෭༷㻌㉸ఏᑟ䝋䝺䝜䜲䝗䛾෭༷䛻䛿䚸ᾮయ䝦䝸䜴䝮䛺䛹䛾෭፹䜢౑⏝䛧䛺䛔䛷䚸㻳㻹 䝃䜲䜽䝹ᑠᆺ෭෾ᶵ䜢౑⏝䛧䛶⇕ఏᑟ䛷෭༷䜢⾜䛖䚹㏆ᖺ䚸ప 䛷ẚ⇕䛜኱䛝䛔␆෭ᮦ䛜㛤Ⓨ䛥䜜䚸㻠㻷ྎ䛾 㻳㻹 䝃䜲䜽䝹䛜ᐇ⌧䛧䛯஦䛜⫼ᬒ䛻䛒䜛䚹㻌 ᑠᆺ෭෾ᶵ䜢౑⏝䛧䛶䛾෭༷᪉ᘧ䛾฼Ⅼ䛿䚸ḟ䛾஦䛜䛒䛢䜙䜜䜛䚹㻔㻝㻕෭෾ᶵ䜢㉳ື䛩䜛䛰䛡䛷෭༷䛜䛷䛝䚸෭፹䛾‽ഛ䜔ྲྀ䜚ᢅ䛔䛛䜙ゎᨺ䛥䜜䜛䚹㻔㻞㻕෭፹ᐜჾ䜔㓄⟶䛜┬␎䛥䜜䜛䛾䛷䜽䝷䜲䜸䝇䝍䝑䝖䛾ᵓ㐀䛜⡆␎໬䛥䜜䜛䚹㻔㻟㻕ᑠᆺ෭෾ᶵ䛾෭෾⬟ຊ䛜 㻟 䝖䞁௨ୗ䛾ሙྜ䛿䚸㧗ᅽ䜺䝇ಖᏳἲ䛾ᡭ⥆䛝䜢せ䛧䛺䛔䚹㻔㻠㻕ᐇ㦂䜶䝸䜰䛜ኚ᭦䛻䛺䛳䛶䜒⛣ື䛜ᐜ᫆䛷䛒䜛䚹㻌 䜎䛯䚸ᨵ㐀䛩䜛 㻮㻱㻿㻿 䝋䝺䝜䜲䝗䛿䚸⢏Ꮚ᳨ฟჾ䛻⏝䛔䜙䜜䜛ⷧ⫗䝋䝺䝜䜲䝗䛸䛧䛶ఏᑟ෭༷䛻ᇶ䛵䛟タィ䛜䛥䜜䛶䛚䜚䚸ᑠᆺ෭෾ᶵ䛸䝋䝺䝜䜲䝗䜢⇕᥋⥆䛩䜛䛣䛸䛷෭༷⣔䜢ᵓᡂ䛩䜛䛣䛸䛜䛷䛝䜛䚹㻌⾲ 㻝 䛻⇕㈇Ⲵィ⟬⤖ᯝ䜢䚸ᅗ 㻝 䛻ఫ㔜 㻞 ẁ 㻳㻹 ෭෾ᶵ㻿㻾㻰㻷㻙㻠㻝㻡㻰㻌 䛾෭⬟⬟ຊ≉ᛶ䜢♧䛩䚹⇕タィ䜢ᇶ䛻䚸䠎ྎ䛾㻳㻹 ෭෾ᶵ䜢㑅ᐃ䛧䛯䚹ᅗ 㻞 䛻↓෭፹㉸ఏᑟ䝋䝺䝜䜲䝗䛾෭༷ᴫᛕ䜢♧䛩䚹㻝 ྎ䛿䚸ఫ㔜 㻞 ẁ 㻳㻹 ෭෾ᶵ 㻿㻾㻰㻷㻙㻠㻝㻡㻰 䜢౑⏝䛧䚸㍽ᑕ䝅䞊䝹䝗䜢 㻝㼟㼠 䝇䝔䞊䝆 㻤㻜㻷䚸䝁䜲䝹䜢 㻞㼚㼐 䝇䝔䞊䝆㻠㻷 䛷෭༷䛩䜛䚹䜎䛯䚸㟁ὶ䝸䞊䝗䛾෭༷䛷䛿䚸䝁䜲䝹䛾෭༷䛻෭፹䜢౑⏝䛧䛺䛔䛯䜑䚸⵨Ⓨ䜺䝇䛻䜘䜛෭༷䛜䛷䛝䛺䛔䚹䛭䛣䛷䚸㟁ὶ䝸䞊䝗䛻䛿㧗 ㉸ఏᑟ㟁ὶ䝸䞊䝗䜢᥇⏝䛧䚸䜒䛖 㻝 ྎ䛾ఫ㔜 㻝 ẁ 㻳㻹 ෭෾ᶵ෭෾ᶵ 㻾㻰㻷㻠㻜㻜㻮 䛷෭༷䜢⾜䛔䚸㟁ὶ䝸䞊䝗㒊䛛䜙䛾⇕౵ධ䜢ᢚ䛘䜛䚹㻌 㻌 㻞 ẁ 㻳㻹 ෭෾ᶵ䛷ྲྀ䜚㝖䛟⇕㈇Ⲵ䛿䚸㏻㟁᫬䛻䛚䛔䛶 㻝㼟㼠 䝇䝔䞊䝆䛷 㻞㻝㻚㻡㻔㼃㻕䚸㻞㼚㼐 䝇䝔䞊䝆䛷 㻞㻚㻟㻝㻔㼃㻕䛷䛒䜚㻔⾲ 㻝㻕䚸䛣䛾෭෾ᶵ䜢㑅ᐃ䛧䛯ሙྜ䚸ᅗ 㻝 䛾෭෾⬟ຊ≉ᛶ䛛䜙䝁䜲䝹䛿 㻡㻔㻷㻕䚸㍽ᑕ䝅䞊䝹䝗䛿 㻠㻞㻔㻷㻕䜎䛷෭༷䛷䛝䜛஦䛜ண᝿䛥䜜䜛䚹㻌෭෾ᶵ䛜ྲྀ䜚௜䛡䜙䜜䜛෭෾ᶵ䝫䞊䝖䛾タィ䞉〇స䜢⾜䛳䛯ᚋ䚸㉸ఏᑟ䝋䝺䝜䜲䝗䛾෭༷ཬ䜃ບ☢ヨ㦂䜢⾜䛳䛯䚹㻌ᅗ 㻟 䛻䝁䜲䝹䛾୺せಶᡤ䛾 ᗘ䜢䝥䝻䝑䝖䛧䛯෭༷᭤⥺䜢♧䛩䚹෭෾ᶵ䜢㉳ື䛧䛶⣙ 㻝㻣㻜 ᫬㛫䛷䝁䜲䝹䛿 㻡㻚㻞䡚㻡㻚㻥㻔㻷㻕䜎䛷෭༷䛩䜛䛣䛸䛜䛷䛝䛯䚹䛭䛾ᚋ䚸▷᫬㛫䛷䛿䛒䜛䛜䚸䝁䜲䝹䛻 㻣㻜㻔㻭㻕
䜎䛷㏻㟁䜢⾜䛔䚸䝁䜲䝹䚸㟁ὶ䝸䞊䝗➼䛻␗ᖖ䛺Ⓨ⇕䛜↓䛔䛣䛸䜢☜ㄆ䛧䛯㻔㻰㻯㻮㻭㻙㼀㻟 ᐇ㦂䛾ᐃ᱁㟁ὶ 㻵㻩㻢㻢㻚㻟㻔㻭㻕㻬㻜㻚㻞㻔㼀㻕㻕䚹㻌㻌䠏䠊 㻰㻯㻮㻭㻙㼀㻟 䛻ྥ䛡䛯㕲䝶䞊䜽䛾ྲྀ௜䛡㻌㻌 ᮏ䝋䝺䝜䜲䝗䛿䚸ᐇ㝿䛻⣲⢏Ꮚᐇ㦂 㻰㻯㻮㻭㻔㻰㼞㼕㼒㼠㻌 㻯㼔㼍㼙㼎㼑㼞㻌㻮㼑㼠㼍㻙㼞㼍㼥㻌 㻭㼚㼍㼘㼥㼦㼑㼞㻕䛷౑⏝䛥䜜䜛䛜䚸☢ሙᆒ୍ᗘ䛜せồ䛥䜜䜛䛾䛷䚸䛭䜜䜎䛷✵ⰺ䛷⏝䛔䜙䜜䛶䛝䛯䜒䛾䛻㕲䝸䝍䞊䞁䝶䞊䜽䜢௜ຍ䛧䛯䚹㻌 䃥㻤㻡㻜㻔㼙㼙㻕㽢㻸㻝㻟㻜㻜㻔㼙㼙㻕䛾䝋䝺䝜䜲䝗☢ሙ✵㛫䠄ᐊ 䠅䛻䛚䛔䛶䚸 ᐃჾ䛜タ⨨䛥䜜䜛䃥㻢㻜㻜㻔㼙㼙㻕㽢㻸㻢㻜㻜㻔㼙㼙㻕䛾 ᐃჾ䜶䝸䜰䛾☢᮰ᐦᗘ䛜 㻜㻚㻞㻔㼀㻕䛷䚸䛭䛾䜶䝸䜰ෆ䛷䛾☢
ሙᆒ୍ᗘ䛜 㻜㻚㻡㻔㻑㻕௨ୗ䛸䛺䜚䚸䛛䛴₃䜜☢ሙ䛜ᑠ䛥䛔㕲䝸䝍䞊䞁䝶䞊䜽䛾タィ〇స䜢⾜䛔䚸☢ሙ ᐃ䜒ᐇ᪋䛧䛯䚹㻌 㻌

200
150
100
50
0
0

12

24

36

48

60

72

84

96 108 120 132 144 156 168 180 192

Time(hour)ᅗ 㻟㻚㻌 ෭༷᭤⥺㻌
第83回

2010年度秋季低温工学・超電導学会

1C-p12

冷却システム (2)䝣䝷䝑䝕䜱䞁䜾㝈⏺䛛䜙ุ᩿䛩䜛❅⣲䝠䞊䝖䝟䜲䝥䛾᭷ຠ฼⏝㻌㻱㼒㼒㼑㼏㼠㼕㼢㼑㻌㼡㼟㼑㻌㼒㼛㼞㻌㼚㼕㼠㼞㼛㼓㼑㼚㻌㼔㼑㼍㼠㻌㼜㼕㼜㼑㻌㼖㼡㼐㼓㼑㼐㻌㼒㼞㼛㼙㻌㼒㼘㼛㼛㼐㼕㼚㼓㻌㼘㼕㼙㼕㼠㻌୰⏣㻌 ⿱ᕼ䠈ᮡᮏ㻌 ᚁ኱㻘ᒸᮧ㻌 ဴ⮳䠄ᮾᕤ኱䠅㻌㻺㻭㻷㻭㻰㻭㻌㼅㼡㼗㼕㻘㻌㻿㼁㻳㻵㻹㻻㼀㻻㻌㻹㼍㼟㼍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㻌㻱㻙㼙㼍㼕㼘㻦㻌㼚㼍㼗㼍㼐㼍㻚㼥㻚㼍㼎㻬㼙㻚㼠㼕㼠㼑㼏㼔㻚㼍㼏㻚㼖㼜㻌㻝䠊䛿䛨䜑䛻㻌
ᾮయ❅⣲ᾐₕ෭༷䛻䜘䜛㧗 ㉸㟁ᑟᶵჾ䛿䚸⵨Ⓨ䛩䜛ᾮయ❅⣲䛾ᐃᮇⓗ䛺⿵඘䛜ᚲせ䛷䚸䛣䛾సᴗ䜢┬䛟䛯䜑䛻䚸❅⣲䝠䞊䝖䝟䜲䝥෭༷䛜ᥦ᱌䛥䜜䛯䚹䛣䛾෭༷᪉ἲ䛿䚸⵨Ⓨ䛩䜛Ẽయ❅⣲䜢䝠䞊䝖䝟䜲䝥ୖ㒊䛸෭෾ᶵ䜢᥋ゐ䛥䛫䜛䛣䛸䛷෌จ⦰䛥䛫䚸㔜ຊ䛻䜘䛳䛶ୗ᪉䛾ᾮ⁀㒊䛻ᡠ䛩䝅䝇䝔䝮䛷䛒䜛䚹䜎䛯䚸⵨Ⓨ䛸จ⦰䛸䛔䛖ఏ⇕⌧㇟䜢฼⏝䛩䜛䛯䜑䚸኱㔞䛾⇕㍺㏦䜢⾜䛖䛣䛸䛜䛷䛝䜛ఏ⇕⣲Ꮚ䛷䛒䜛䚹ᮏ◊✲䜾䝹䞊䝥䛷䛿䚸㐣ཤ䛻❅⣲䜢సືὶయ䛸䛧䛯䝠䞊䝖䝟䜲䝥䛾⇕㍺㏦㝈⏺䛾ཎᅉ䛸䛺䜛䚸䝣䝷䝑䝕䜱䞁䜾㝈⏺≉ᛶ䛻䛴䛔䛶◊✲䜢⾜䛳䛶䛝䛯㻔䠎㻕䚹௒ᅇ䛿䛭䛾䝕䞊䝍䜢ᇶ䛻䚸❅⣲䝠䞊䝖䝟䜲䝥䛾᭷ຠ฼⏝䜢⪃䛘䛯䚹䛭䛾᭷ຠ฼⏝䛸䛿䚸䝠䞊䝖䝟䜲䝥䛾ᙧ≧䛸⇕౵ධ㔞䛛䜙⪃䛘䛯సືὶయ䛷䛒䜛❅⣲䛾 ᗘタᐃ䛷䛒䜛䚹㻌㻲㼕㼓㻚㻝㻌㻱㼤㼜㼑㼞㼕㼙㼑㼚㼠㼍㼘㻌㼍㼜㼜㼍㼞㼍㼠㼡㼟㻌㻞䠊ᐇ㦂᪉ἲ㻌㻲㼕㼓㻚㻝 䛻ᐇ㦂⿦⨨䛾ᴫ␎ᅗ䜢♧䛩䚹ᐇ㦂䛻䛿䚸㻠 ✀㢮䛾䝠䞊䝖䝟䜲䝥䠄⟶ᚄ䠖㻟㼙㼙䚸㻠㼙㼙䚸⟶㛗㻦㻝㻜㻜㼙㼙䚸㻟㻜㻜㼙㼙䠅䜢⏝䛔䛶䚸䛭䜜䛮䜜䛾䝠䞊䝖䝟䜲䝥䛷จ⦰㒊䛾タᐃ ᗘ䜢 㻣㻜㻷䚸㻣㻣㻷䚸㻤㻠㻷 䛸ኚ໬䛥䛫䛯䚹ᐇ㦂ᡭ㡰䜢௨ୗ䛻♧䛩䚹㻳㻹 ෭෾ᶵ䛾 㻝㼟㼠䝇䝔䞊䝆䛛䜙୰✵䛾ఏ⇕ᯈ㻔㻯㼡㻕䜢௓䛧䛶䝠䞊䝖䝟䜲䝥䛾จ⦰㒊㻔㻯㼡㻕䚸⣽⟶㒊㻔㻿㼁㻿㻕䚸ᾮ⁀㒊㻔㻿㼁㻿㻕䜢㡰䛻ఏᑟ෭༷䛩䜛䚹䛣䛾᫬䚸 ㄪჾ䜢⏝䛔䛶จ⦰㒊䜢タᐃ ᗘ䛻ไᚚ䛩䜛䚹タᐃᗘ䛻㐩䛧䛯䜙䚸❅⣲䜺䝇䝪䞁䝧䛸䝠䞊䝖䝟䜲䝥䛾จ⦰㒊䜢⧅䛠౪⤥⟶䜘䜚❅⣲䜺䝇䜢ὀධ䛩䜛䚹⣔ෆ䛿ไᚚ䛥䜜䛯 ᗘ䛻ᛂ䛨䛯㣬࿴ᅽຊ䛸䛺䜚䚸ᾮ⁀㒊䛻ᾮయ❅⣲䛜⁀䜎䛳䛶䛔䛟䚹ᾮయ❅⣲䛜ᾮ⁀㒊䛾⣙ 㻤㻜䠂⁀䜎䜛䛸䚸ᾮ⁀㒊ᗏ㠃䛻タ⨨䛧䛯䝠䞊䝍䞊䛻୍ᐃ䛾⇕ධຊ䜢⾜䛖䚹ධຊ䛧䛯⇕㔞䛜኱䛝䛔ሙྜ䚸䛧䜀䜙䛟䛩䜛䛸ᾮ⁀㒊䛾 ᗘ䛜ᛴୖ᪼䛩䜛䚹䛣䜜䛿䚸⣽⟶㒊䛷䝣䝷䝑䝕䜱䞁䜾⌧㇟䛜⏕䛨䛯䛯䜑䛷䛒䜛䚹䛣䛾⌧㇟䛿䚸จ⦰㒊䛷ᾮ໬䛥䜜䛯ᾮయ❅⣲䛜⵨Ⓨ䛩䜛Ẽయ❅⣲䛻྿䛝ୖ䛢䜙䜜䚸ᾮ⁀㒊䛻㑏ὶ䛧䛺䛟䛺䜚䚸ᾮ⁀㒊䛾ᾮయ❅⣲䛜䛺䛟䛺䛳䛯䛯䜑䛷䛒䜛䚹䛣䛾䜘䛖䛻䚸ᾮ⁀㒊䛾 ᗘ䛜ᛴୖ᪼䛧䛯᫬䚸䝣䝷䝑䝕䜱䞁䜾⌧㇟䛜㉳䛣䛳䛯䛸ุ᩿䛧䛯䚹䜎䛯䚸ᾮ⁀㒊䛻ᢞධ䛩䜛䝠䞊䝍䞊⇕㔞䜢ᑠ䛥䛟䛧䛶䛔䛡䜀䚸䛒䜛⇕㔞䜢ቃ䛻ୖグ⌧㇟䛜㉳䛣䜙䛺䛟䛺䜛䚹䛣䛾᫬䛾⇕㔞䜢㝈⏺⇕㍺㏦㔞㻔௨ୗ 㻯㻲㻴㻕䛸䛩䜛䚹㻌㻟䠊ᐇ㦂⤖ᯝ䛸⪃ᐹ㻌㻲㼕㼓㻚㻞 䛻จ⦰㒊 ᗘ䜢 㻣㻜䚸㻣㻣䚸㻤㻠㻷 䛻タᐃ䛧䚸䝠䞊䝖䝟䜲䝥䛾ྛ⟶ᚄ䚸⟶㛗㻌 䠷౛䛘䜀䠄㻟䚸㻝㻜㻜䠅䛿⟶ᚄ 㻟㼙㼙䚸⟶㛗 㻝㻜㻜㼙㼙䜢⾲䛩䚹䠹㻌 䛾 ᐃ⤖ᯝ䛸ᩥ⊩ 㻔䠏㻕䛾䝣䝷䝑䝕䜱䞁䜾ゎᯒ䝰䝕䝹䛛䜙ồ䜑䛯ィ⟬⤖ᯝ䜢♧䛩䚹ィ⟬⤖ᯝ䛷䛿䚸⟶㛗䛿⪃៖䛥䜜䛶䛚䜙䛪䚸⟶ᚄ䛾䜏䜢 㻟㼙㼙 䛸 㻠㼙㼙 䛷ẚ㍑䛧䛶䛔䜛䚹 ᐃ⤖ᯝ䛷䛿䚸ྛ ᗘ䛷䜒⟶ᚄ䛻䜘䜛 㻯㻲㻴 䛾ኚ໬䛿ぢ䜙䜜䛯䛜䚸⟶㛗䛻䜘䜛 㻯㻲㻴 䛾ኚ໬䛿ぢ䜙䜜䛺䛛䛳䛯䚹䛣䜜䛿䚸จ⦰㒊䛸⣽⟶㒊䚸ᾮ⁀㒊䛸⣽⟶㒊䛾௜䛡᰿䛷᩿㠃✚䛜ᛴ⃭䛻ኚ໬䛩䜛䛣䛸䛻䜘䛳䛶䚸㛗䛥䜘䜚䜒 㻯㻲㻴 䛻୚䛘䜛ᙳ㡪䛜኱䛝䛔䛯䜑Ⓨ⏕䛧䛶䛔䜛䚹䜎䛯䚸 ᐃ⤖ᯝ䛸ィ⟬⤖ᯝ䛷䛿䚸ᐃ㔞ⓗ䛻䛿┦㐪䛜䛒䜛䜒䛾䛾୧⟶ᚄ䛸䜒 ᗘ䛜ୖ᪼䛩䜛䛸 㻯㻲㻴 䛜ቑ䛩䛸䛔䛖䛣䛸䛜ศ䛛䛳䛯䚹㻲㼕㼓㻚㻟 䛻ィ⟬䛛䜙ồ䜑䛯❅⣲䝠䞊䝖䝟䜲䝥ືసྍ⬟ᗘ⠊ᅖ䛷䛾 㻯㻲㻴 䛾ኚ໬䜢♧䛧䛶䛚䜚䚸Ẽయ䛸ᾮయ䛾ᐦᗘ䛾๭ྜ䛛䜙䛣䛾ᵝ䛺⌧㇟䛜⏕䛨䛯䛣䛸䛜⌮ゎ䛷䛝䜛䚹⌧ᅾ䚸ᐃ㔞ⓗ䛺┦㐪䛾ཎᅉ䜢ㄪ䜉䛶䛔䜛䚹㻌㻲㼕㼓㻚㻞㻌㻱㼒㼒㼑㼏㼠㻌㼛㼒㻌㼠㼔㼑㻌㼐㼕㼍㼙㼑㼠㼑㼞㻘㻌㼘㼑㼚㼓㼠㼔㻌㼍㼚㼐㻌㼠㼑㼙㼜㼑㼞㼍㼠㼡㼞㼑㻌㼛㼚㻌㼏㼞㼕㼠㼕㼏㼍㼘㻌㼒㼘㼛㼛㼐㼕㼚㼓㻌㼔㼑㼍㼠㻌㻲㼕㼓㻚㻟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㼚㻌㼏㼞㼕㼠㼕㼏㼍㼘㻌㼒㼘㼛㼛㼐㼕㼚㼓㻌㼔㼑㼍㼠㻌㼛㼒㻌㼚㼕㼠㼞㼛㼓㼑㼚㻌㼔㼑㼍㼠㻌㼜㼕㼜㼑㻌㼣㼕㼠㼔㻌㻟㼙㼙㻌㼕㼚㻌㼐㼕㼍㼙㼑㼠㼑㼞㻌ཧ⪃ᩥ⊩㻌㻝㻚 㻷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㻶㻌㻯㼛㼚㼒㼑㼞㼑㼚㼏㼑㻘㻌 㻌㼂㼛㼘㻚㻌㻣㻥㻌㻔㻞㻜㻜㻤㻕㻌㼜㻝㻡㻞㻌㻞㻚 㻷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㻶㻌㻯㼛㼚㼒㼑㼞㼑㼚㼏㼑㻘㻌 㻌㼂㼛㼘㻚㻌㻤㻝㻌㻔㻞㻜㻜㻥㻕㻌㼜㻢㻟㻌㻟㻚 㻹㻚㻌 㻹㼛㼚㼐㼑㻘㻌 㼑㼠㻌 㼍㼘㻚㻦㻌 㻶㻿㻹㻱㻌 㻵㼚㼠㼑㼞㼚㼍㼠㼕㼛㼚㼍㼘㻌 㻶㼛㼡㼞㼚㼍㼘㻘㻌 㼂㼛㼘㻚㻢㻝㻌㻔㻝㻥㻥㻡㻕㻌㼜㻟㻜㻟㻌― 70 ―

第83回

2010年度秋季低温工学・超電導学会

1C-p13

冷却システム (2)㧗ຠ⋡ࢥ࢖ࣝఏᑟ෭༷ࢩࢫࢸ࣒ࡢ㛤Ⓨ
High-efficient conduction cooling system development for SMES coil㻌⋢⏣㻌 ຮ㻘㻌 㛗ᒇ㻌 㔜ኵ㻘㻌 ᖹ㔝㻌 ┤ᶞ㻘㻌 ᡂ℩㻌 ගே㻘㻌 ᘧ⏫㻌 ᾈ஧䠄୰㒊㟁ຊ䠅㻌㼀㻭㻹㻭㻰㻭㻌㼀㼟㼡㼠㼛㼙㼡㻘㻌㻺㻭㻳㻭㼅㻭㻌㻿㼔㼕㼓㼑㼛㻘㻌㻴㻵㻾㻭㻺㻻㻌㻺㼍㼛㼗㼕㻘㻌㻺㻭㻾㼁㻿㻱㻌㻹㼕㼠㼟㼡㼔㼕㼠㼛㻘㻌㻿㻴㻵㻷㻵㻹㻭㻯㻴㻵㻌㻷㼛㼖㼕㻘㻌㻔㻯㼔㼡㼎㼡㻌㻱㼘㼑㼏㼠㼞㼕㼏㻌㻼㼛㼣㼑㼞㻌㻯㼛㻚㻕㻌㻱㻙㼙㼍㼕㼘㻦㻌㼀㼍㼙㼍㼐㼍㻚㼀㼟㼡㼠㼛㼙㼡㻬㼏㼔㼡㼐㼑㼚㻚㼏㼛㻚㼖㼜㻌㻌
Pressure gauge㻌㻝䠊䛿䛨䜑䛻㻌
P
Flowmeter
SMES ⏝㉸㟁ᑟ࣐ࢢࢿࢵࢺࡢ෭༷᪉ἲ࡟࠾࠸࡚ࡣᾮయ
㻌
P Compressor
CERNOX࣒࣊ࣜ࢘➼ࢆ౑ࡗࡓᾐₕ෭༷᪉ᘧࡢᐇ⦼ࡀ࠶ࡿࠋ୍᪉ࠊ
Resistance
Refriger
Thermocouple
thermometert࢖ࢵࢺ࣒ࣜ࢘⣔㉸㟁ᑟ⥺ᮦ࡟࠾࠸࡚ࡣࠊᚑ᮶ࡢ㔠ᒓ⣔ࡼ
G1 G4
Coil cooling plumbingࡾࡶ㧗࠸ ᗘ࡛㉸㟁ᑟ≧ែ࡜࡞ࡿࡇ࡜࠿ࡽࠊᡃࠎࡣྲྀࡾ
D2
Thermalᢅ࠸ࡀᐜ᫆࡞ఏᑟ෭༷ࢩࢫࢸ࣒࡟ࡼࡿ෭༷᪉ἲ࡟ࡘ࠸࡚
exchang
F1
A
E2 G2 G3
᳨ウࢆ㐍ࡵ࡚࠸ࡿࠋఏᑟ෭༷᪉ᘧ࡟࠾࠸࡚ࡣᚑ᮶࠿ࡽᅛ
B
య⇕ఏᑟ࡟ࡼࡿ෭༷ࡀ⾜ࢃࢀ࡚࠸ࡓࡀࠊ኱ᐜ㔞ࡢ SMES
Aluminum plate
E1
HeaterC࡟࡞ࡿ࡜෭෾ᶵ࠿ࡽࢥ࢖ࣝࡲ࡛ࡢ㊥㞳ࡀ㐲ࡃ࡞ࡾࠊ⇕ࢆఏ࠼ࡿ⇕࣮ࣜࢻ࡛ࡣ⇕໙㓄ࡀⓎ⏕ࡋࠊࢥ࢖ࣝ඲యࢆᆒ➼D1 Refriger cooling plumbing
Heater࡟෭༷࡛ࡁ࡞࠸ࠋࡑࡇ࡛௒ᅇࠊ࢞ࢫᚠ⎔࡟ࡼࡿ෭༷᪉ᘧ
Vacuum vessel
Heat transfer plateࡢ᳨ドࢆ⾜ࡗࡓࡢ࡛ሗ࿌ࡍࡿࠋ
Coil cooling plumbing
B8
B6
B7
㻌
CERNOXInternal㻞䠊ᐇ㦂᪉ἲ㻌
circumference B5
B4
B3
side
Thermocoupleᐇ㦂⿦⨨ࡢᴫ␎ᅗࢆ Fig.1 ࡟♧ࡍࠋࢩ࣮ࣝࢻᐜჾࡢ୰
B2
B1
B0
Fig. 1 Outline drawing of the experimental device࡟ᶍᨃࢥ࢖ࣝ㸦⇕ศᕸࢆ୚࠼ࡽࢀࡿࡼ࠺࡟ࡋࡓ࢔࣑ࣝᯈ㸧― 71 ―

Fig. 2 Simulation of thermal distribution

Fig. 3 Heater positions of dummy coils$VROLGOLQH㸸 $FWXDOVXUYH\YDOXH$GRWWHGOLQH &DOFXODWLRQYDOXH

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'LIIHUHQFHRIWHPSHUDWXUH>.@࡟⤯⦕ᮦࢆࢥ࣮ࢸ࢕ࣥࢢࡋࠊࡑࡢ⾲㠃࡟෭༷㓄⟶ࢆᇙࡵ㎸ࢇࡔఏ⇕ᯈࢆᙇࡾࡘࡅࡿࠋࡇࡢ෭༷㓄⟶ࡢ୰ࢆ෭෾ᶵ
࡛ 20K ௨ୗ࡟෭༷ࡉࢀࡓ࣒࣊ࣜ࢘࢞ࢫࢆᚠ⎔ࡍࡿࡇ࡜࡛ࠊ
ࢥ࢖ࣝ඲యࢆ෭༷ࡉࡏࡿࠋ෭෾ᶵࡣࢥ࢖ࣝ෭༷⏝50W@20K ࡢ෭෾ᶵ 1 ྎ࡜ࢩ࣮ࣝࢻ෭༷⏝ 175W@65K ෭෾ᶵ 2 ྎ࡛ࢩࢫࢸ࣒඲యࢆ෭༷ࡍࡿࠋSMES ࢥ࢖ࣝࡣࠊ㐠㌿᫬࡟Ⓨ⏕ࡍࡿ☢⏺ࡢᙳ㡪࡛ࠊศᕸⓎ⇕ࡀⓎ⏕ࡍࡿࠋFig.2
࡟ 2GJ ⣭ SMES ࡟࠾࠸࡚ࠊࢥ࢖ࣝࢆࢺࣟ࢖ࢻ㓄⨨ࡋࡓሙ
ྜ࡟Ⓨ⏕ࡍࡿ⇕ศᕸࡢࢩ࣑࣮ࣗࣞࢩࣙࣥ⤖ᯝࢆ♧ࡍࠋࢥ࢖ࣝእഃࡢ᪉ࡀࢥ࢖ࣝ㛫㝸ࡣᗈࡃ࡞ࡾࠊⓎ⏕☢⏺ࡀከࡃ₃ࢀࡿࡓࡵⓎ⇕ࡀ㧗ࡃ࡞ࡿࠋࡑࡇ࡛ࠊࢥ࢖ࣝ࡟Ⓨ⏕ࡍࡿ⇕ศᕸࢆᶍᨃฟ᮶ࡿᵝࠊFig.3 ࡢࡼ࠺࡟࢔࣑ࣝᯈ࡛〇సࡋࡓᶍᨃࢥ࢖ࣝ࡟ࣄ࣮ࢱࢆ 72 ಶ㸦18 ಶ4 ᒙ㸧ྲྀ௜ࡅࠊタィ㏻ࡾࡢ෭༷ࡀฟ᮶ࡿ࠿ࢆ᳨ドࡋࡓࠋ㻌㻟䠊⤖ᯝ㻌 Fig.4 ࡣࢥ࢖ࣝ࡟࠾ࡅࡿ෭༷⟶ධཱྀ௜㏆ࢆ ᗘࡢᇶ‽࡜ࡋ࡚ࠊSMES ࢥ࢖ࣝࡢⓎ⇕㔞ࡀ୍␒㧗ࡃ࡞ࡿ 270r௜㏆࡟ࡘ࠸࡚ࠊᇶ‽್࡜ࡢ ᗘᕪࢆ⟬ฟࡋࠊィ⟬್࡜ᐇ ್ࢆẚ㍑ࡋࡓࠋࢥ࢖ࣝ඲యࡢ ᗘศᕸࡢᕪࡀ 3K ⛬ᗘ௨ෆ࡟཰ࡲࡾࠊ࢞ࢫᚠ⎔࡛ࡢ෭༷ࢩࢫࢸ࣒ࡀ᭷ຠ࡛࠶ࡿࡇ࡜ࡀ
ࢃ࠿ࡿࠋࡲࡓࠊ௒ᅇࡢࢩ࣑࣮ࣗࣞࢩࣙࣥ⤖ᯝࡣࠊᐇ ್࡜ࡢᕪࡀ 0.3K ௨ෆ࡛࠶ࡿࡇ࡜࠿ࡽࠊ෭༷ࢩࢫࢸ࣒ࡢタィᡭἲ࡟ࡘ࠸࡚ࡶ☜❧࡛ࡁࡓ࡜⪃࠼ࡽࢀࡿࠋ
௒ᚋࠊᐇ㝿ࡢ࢖ࢵࢺ࣒ࣜ࢘⣔㉸㟁ᑟࢥ࢖ࣝ࡟ఏ⇕ᯈࢆྲྀࡾ௜ࡅࠊࢥ࢖ࣝࡢ⤯⦕ᛶ⬟ࢆ☜ㄆࡍࡿ࡜࡜ࡶ࡟෭༷ᛶ
⬟࡟ࡘ࠸᳨࡚ドࡋ࡚࠸ࡃணᐃ࡛࠶ࡿ䚹㻌㻌㻠䠊ㅰ㎡㻌ᮏ◊✲䛿䚸㻺㻱㻰㻻 䛾ጤク஦ᴗ䛂䜲䝑䝖䝸䜴䝮⣔㉸㟁ᑟ㟁ຊᶵჾᢏ⾡㛤Ⓨ䛃䛾୍⎔䛷ᐇ᪋䛧䛯䜒䛾䛷䛒䜛䚹㻌㻞㻚㻡

&RLOVXUIDFH

㻞㻚㻜
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7KH KHDW WUDQVIHU
SODWHVXUIDFH

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Internal㻮㻜㻘㻮㻟㻘㻮㻢     Center㻮㻝㻘㻮㻠㻘㻮㻣
circumferenceOuter㻮㻞㻘㻮㻡㻘㻮㻤
circumference

Fig. 4 Temperature comparison of the coil 㻌around 270 degree
第83回

2010年度秋季低温工学・超電導学会

1C-p14

冷却システム (2)⿥㔚ዉ䉬䊷䊑䊦↪಄ළ䉲䉴䊁䊛䈱න૕ㆇォ⹜㛎㩷㪜㫏㫇㪼㫉㫀㫄㪼㫅㫋㪸㫃㩷㫉㪼㫊㫌㫃㫋㫊㩷㫆㪽㩷㪺㫆㫆㫃㫀㫅㪾㩷㫊㫐㫊㫋㪼㫄㩷㪽㫆㫉㩷㫊㫌㫇㪼㫉㪺㫆㫅㪻㫌㪺㫋㫀㫅㪾㩷㪺㪸㪹㫃㪼㩷㪫㪼㫄㫇㪼㫉㪸㫋㫌㫉㪼㩷㪢㪧㫉㪼㫊㫊㫌㫉㪼㩷㪤㪧㪸㩷
ᄢ㊁㩷 㓉੺䋬ਅ↰㩷 ዁ᄢ䋬ᳰౝ㩷 ᱜల䋬⍫ญ㩷 ᐢ᥍䋬↸↰㩷 ᣿⊓䋨೨Ꮉ⵾૞ᚲ䋩㩷 䋻㩷 ᷰㇱ㩷 లᒾ䋬Ⴧ↰㩷 ቁੱ䋨૑෹㔚Ꮏ䋩㩷 䋻㩷 ㊁ญ㩷 ⵨䋬㩷ᏒᎹ㩷 ⵨჻䋬ਃ᧛㩷 ᥓ↵䋬ᧄᐣ㩷 ᣹৻䋬ේ㩷 ▽ᔒ䋨᧲੩㔚ജ䋩㩷㪦㪥㪦㩷㪩㫐㫌㫊㫌㫂㪼䋬㩷 㪪㪟㪠㪤㪦㪛㪘㩷㪤㪸㫊㪸㪿㫀㫉㫆㪃㩷㪠㪢㪜㪬㪚㪟㪠㩷㪤㪸㫊㪸㫄㫀㫋㫊㫌㪃㩷㪰㪘㪞㪬㪚㪟㪠㩷㪟㫀㫉㫆㪿㪸㫉㫌㪃㩷㪤㪘㪚㪟㪠㪛㪘㩷㪘㫂㫀㫋㫆㩷㩿㪤㪸㫐㪼㫂㪸㫎㪸㩷㪤㪽㪾㪅㪀㩷㪒㩷 㩷㪮㪘㪫㪘㪥㪘㪙㪜㩷㪤㫀㪺㪿㫀㪿㫀㫂㫆㪃㩷㪤㪘㪪㪬㪛㪘㩷㪫㪸㫂㪸㫋㫆㩷㩿㪪㫌㫄㫀㫋㫆㫄㫆㩷㪜㫃㪼㪺㫋㫉㫀㪺㩷㪠㫅㪻㫌㫊㫋㫉㫀㪼㫊㪀㩷㪒㩷㪥㪦㪞㪬㪚㪟㪠㩷㪰㫌㪃㩷㪠㪚㪟㪠㪢㪘㪮㪘㩷㪟㫀㫉㫆㫊㪿㫀㪃㩷 㩷㪤㪠㪤㪬㪩㪘㩷㪫㫆㫄㫆㫆㪃㩷㪟㪦㪥㪡㪦㩷㪪㪿㫆㫀㪺㪿㫀㪃㩷㪟㪘㪩㪘㩷㪫㫊㫌㫂㫌㫊㪿㫀㩷㩿㪫㫆㫂㫐㫆㩷㪜㫃㪼㪺㫋㫉㫀㪺㩷㪧㫆㫎㪼㫉㩷㪚㫆㫄㫇㪸㫅㫐㪀㩷㪜㪄㫄㪸㫀㫃㪑㩷㫉㫐㫌㫊㫌㫂㪼㪄㫆㫅㫆㪗㫄㪸㫐㪼㫂㪸㫎㪸㪅㪺㫆㪅㫁㫇㩷㩷ォਛ䇮ਁ৻䈱♽࿶ജૐਅ䉕ᮨᡆ䈚䇮ᒝ೙⊛䈮䉺䊮䉪ౝ࿶䉕㪈䋮䈲䈛䉄䈮㩷
㪇㪅㪈㪏㪤㪧㪸 䈮ਅ䈕䈢⁁ᘒ䈎䉌䈱ᓳᏫ․ᕈ䉕ⷰኤ䈚䈢䇯䈍䉋䈠 㪊㪇㜞᷷⿥㔚ዉ䉬䊷䊑䊦䈲ᄢኈ㊂ૐ៊ᄬㅍ㔚䈱䊜䊥䉾䊃䉕↢䈎ಽ䌾㪈 ᤨ㑆⒟ᐲ䈪ೋᦼ⸳ቯ୯䈮ᓳᏫ䈚䇮䈠䈱ᓟ቟ቯ䈚䈢࿶䈚䇮ᰴ਎ઍ䈱ㅍ㔚䉬䊷䊑䊦䈫䈚䈩ታ↪ൻ䈏ᦼᓙ䈘䉏䈩䈇䉎䇯ജ䉕⛽ᜬ䈜䉎䈖䈫䉕⏕⹺䈚䈢䇯㩷਎⇇ฦ࿖䈪ታ↪ൻ䉕⋡ᜰ䈚᭽䇱䈭㩷 ࿖ኅ䊒䊨䉳䉢䉪䊃䈏ㅴ䉄䉌㩷 㪇㪅㪉㪍
䉏䈩䈍䉍䇮ᣣᧄ䈮䈍䈇䈩䈲 㪉㪇㪇㪎 ᐕᐲ䉋䉍 㪍 ᐕ⸘↹䈪䇸㜞᷷⿥㪪㪼㫋㩷㫇㫉㪼㫊㫊㫌㫉㪼䋺㪇㪅㪉㪤㪧㪸㩷 㪇㪅㪉㪋
㔚ዉ䉬䊷䊑䊦ታ⸽䊒䊨䉳䉢䉪䊃䇹䈏ታᣉ䈘䉏䈩䈇䉎㪲㪈㪴䇯㩷㪧㫉㪼㫊㫊㫌㫉㫀㫑㪼㪻㪧㫉㪼㫊㫊㫌㫉㫀㫑㪼㪻㪹㫐㩷㫍㪸㫇㫆㫉㫀㫑㪼㫉㩷 㪇㪅㪉㪉
ᧄ䊒䊨䉳䉢䉪䊃䈲䇮᧲੩㔚ജᣩᄌ㔚ᚲౝ䈮 㪉㪌㪇㫄 ⚖㜞᷷⿥㪹㫐㩷㫍㪸㫇㫆㫉㫀㫑㪼㫉㩷 㪇㪅㪉㔚ዉ䉬䊷䊑䊦䉕᭴▽䈚䇮㪍㪍㫂㪭 ⚖䈱ታ㔚ജ♽⛔䈮ធ⛯䈚䈩ㅍ㩷 㪇㪅㪈㪏
㔚ㆇォ䉕ⴕ䈇䇮ㆇ↪ᕈ䇮ା㗬ᕈ䇮଻቞ᕈ╬䈱ᬌ⸽䉕ታᣉ䈜䉎㩷䉅䈱䈪䈅䉎䇯੹ᐕᐲ䈲ታ⸽⹜㛎䈮஻䈋䈢੐೨ᬌ⸽䈫䈚䈩䇮೨㪇㪅㪈㪍㪧㫉㪼㫊㫊㫌㫉㪼㩷㪺㫆㫅㫋㫉㫆㫃㩷㫍㪸㫃㫍㪼䋺㪧㫉㪼㫊㫊㫌㫉㪼㩷㪺㫆㫅㫋㫉㫆㫃㩷㫍㪸㫃㫍㪼䋺㩷Ꮉ⵾૞ᚲ቞⼱Ꮏ႐䈮ᣩᄌ㔚ᚲ䈪↪䈇䉎ᶧ૕⓸⚛ᓴⅣ಄ළ
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䉲䉴䊁䊛䉕⸳⟎䈚䇮㪍 ᦬䉋䉍ᓴⅣ಄ළ․ᕈ䇮᷷ᐲ䇮࿶ജ೙ᓮ․㪩㪼㫊㪼㫉㫍㫆㫀㫉㩷㫋㪸㫅㫂㩷㫇㫉㪼㫊㫊㫌㫉㪼㩷 㪇㪅㪈㪉
ᕈ䇮౬㐳ᕈ䉕⠨ᘦ䈚䈢ㆇォᣇᴺ䈱⏕⹺䈭䈬䈱⹜㛎䉕ታᣉਛ㩷䈪䈅䉎䇯੹࿁䈲䈖䉏䉌੐೨ᬌ⸽⹜㛎⁁ᴫ䈮䈧䈇䈩ႎ๔䈜䉎䇯㩷
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㪽㫀㪾㪅㪉㩷㪧㫉㪼㫊㫊㫌㫉㪼㩷㪺㫆㫅㫋㫉㫆㫃㩷㫉㪼㫊㫌㫃㫋㫊㩷㪉䋮಄ළ䉲䉴䊁䊛㩷㩷⿥㔚ዉ䉬䊷䊑䊦䈮ଏ䈜䉎಄ළ䉲䉴䊁䊛䈱䊐䊨䊷࿑䉕 㪽㫀㪾㪅㪈㪉㪀᷷ᐲ೙ᓮ㩷䈮␜䈜䇯䉲䉴䊁䊛䈲಄ಓᯏ䇮ᓴⅣ䊘䊮䊒䇮䊥䉱䊷䊋䉺䊮䉪෸䈶ᮨᡆ䊍䊷䉺౉ญ᷷ᐲ䈏৻ቯ▸࿐䋨㪎㪇㫧㪈㪢䋩䈫䈭䉎䉋䈉䈮಄㈩▤䇮䊋䊦䊑䇮⸘ེ╬䈎䉌᭴ᚑ䈘䉏䉎䇯੹࿁䈲⿥㔚ዉ䉬䊷䊑ಓᯏ䉕⊒஗䈘䈞䇮᷷ᐲ೙ᓮ䉕ⴕ䈭䈦䈢䇯㪽㫀㪾㪅㪊 䈮␜䈜䉋䈉䈮ᮨ䊦䈮ᄌ䉒䉎ᾲ⽶⩄䈫䈚䈩ᮨᡆ䊍䊷䉺䉕↪䈇䇮䊥䉱䊷䊋䉺䊮䉪䈮ᡆ⽶⩄಴ജ䉕 㪏㪏㪌䌾㪈㪎㪊㪌㪮 䈮ᄌൻ䈘䈞䈩䉅䇮ㆇォ಄ಓᯏบ⾂䈋䉌䉏䈢ᶧ૕⓸⚛䋨㪣㪥㪉䋩䉕ᓴⅣ䊘䊮䊒䈪಄ಓᯏ䈮࿶ㅍ䈘ᢙ䉕⥄േ೙ᓮ䈜䉎䈖䈫䈮䉋䉍ᮨᡆ䊍䊷䉺౉ญ᷷ᐲ䉕৻ቯ▸࿐䉏䈢ᓟ䇮಄ළ䈚ᮨᡆ䊍䊷䉺䉕⚻䈩䊥䉱䊷䊋䉺䊮䉪䈮ᚯ䉎䈫䈇䈉䈮೙ᓮ䈪䈐䉎䈖䈫䉕⏕⹺䈚䈢䇯㩷㐽䊦䊷䊒䈪䈱಄ළ䉲䉴䊁䊛න૕ㆇォ䈱࿁〝䈪ฦ⹜㛎䉕ታᣉ㩷㪎㪋䈚䈢䇯಄ಓᯏ䈲 㪈㫂㪮 ⚖䉴䉺䊷䊥䊮䉫ᣇᑼ䉕ណ↪䈚䇮ᣩᄌ㔚ᚲ㪩㪼㪽㫉㫀㪾㪼㫉㪸㫋㫆㫉㩷㪦㫅㪆㪦㪽㪽㩷㪺㫆㫅㫋㫉㫆㫃㩷㪎㪊䈪䈱䉬䊷䊑䊦䉲䉴䊁䊛ᾲ⽶⩄╬䉕⠨ᘦ䈚䈩䇮੍஻ᯏ䉕฽䉄 㪍㪟㪼㪸㫋㪼㫉㩷㫇㫆㫎㪼㫉 㪟㪼㪸㫋㪼㫉㩷㫇㫆㫎㪼㫉㪟㪼㪸㫋㪼㫉㩷㫇㫆㫎㪼㫉 㪟㪼㪸㫋㪼㫉㩷㫇㫆㫎㪼㫉㩷㪎㪉บ᭴ᚑ䈫䈚䈢䇯䈭䈍቞⼱Ꮏ႐䈪䈲䇮⸳஻䈱ㇺว਄䉲䉴䊁䊛䈮
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ធ⛯䈜䉎䈱䈲಄ಓᯏ 㪊 บ䈫䈚䈢䇯㩷㪎㪈㩷㩷㪥㫆㫋㩷㪺㫆㫅㫅㪼㪺㫋㪼㪻㩷㫀㫅㩷㪺㫌㫉㫉㪼㫅㫋㩷㫋㪼㫊㫋㫊
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Ref.
㩷㪩㪼㫊㪼㫉㫍㫆㫀㫉
㪧㫌㫄㫇
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㫋㪸㫅㫂

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㪍㪎
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㪥㫆㫋㩷㪺㫆㫅㫅㪼㪺㫋㪼㪻㩷
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㫀㫅㩷㪺㫌㫉㫉㪼㫅㫋㩷㫋㪼㫊㫋㫊㪫㫀㫄㪼㩷㫄㫀㫅
䌒䌥䌦㪅䋺㫉㪼㪽㫉㫀㪾㪼㫉㪸㫋㫆㫉

㩷
㪚䌡䌢䌬䌥
㪚䌡䌢䌬䌥
㪽㫀㪾㪅㪊㩷㪫㪼㫄㫇㪼㫉㪸㫋㫌㫉㪼㩷㪺㫆㫅㫋㫉㫆㫃㩷㫉㪼㫊㫌㫃㫋㫊㩷㩷㪋䋮䈍䉒䉍䈮㩷
㪽㫀㪾㪅㪈㩷㪪㪺㪿㪼㫄㪸㫋㫀㪺㩷㫆㪽㩷㪺㫆㫆㫃㫀㫅㪾㩷㫊㫐㫊㫋㪼㫄㩷㩷 㩷 ೨Ꮉ⵾૞ᚲ቞⼱Ꮏ႐ౝ䈮ᶧ૕⓸⚛ᓴⅣ಄ළ䉲䉴䊁䊛䉕㩷⸳⟎䈚䇮ᓴⅣ಄ළ․ᕈ䇮೙ᓮㆇォ․ᕈ䈭䈬䈱⏕⹺䉕ታᣉਛ㪊䋮ㆇォ⹜㛎㩷 㩷䈪䈅䉎䇯઀᭽䉕ḩ䈢䈜ᕈ⢻䉕⏕⹺䈚䈢ᓟ䇮᧪ᐕ 㪈 ᦬䈎䉌ᣩᄌ಄ළ䉲䉴䊁䊛䈮䈍䈇䈩䈲ᶧ૕⓸⚛䈱᷷ᐲ䇮࿶ജ䇮ᓴⅣᵹ㔚ᚲ䈮⒖⸳䉕ⴕ䈉੍ቯ䈪䈅䉎䇯㩷㊂䉕೙ᓮ䈚䇮቟ቯ䈚䈢಄ᇦ䉕䉬䊷䊑䊦䈮ㅍ䉎䈖䈫䈏㊀ⷐ䈪䈅䉎䇯ᧄ⎇ⓥ䈲䇸㜞᷷⿥㔚ዉ䉬䊷䊑䊦ታ⸽䊒䊨䉳䉢䉪䊃䇹䈫䈚䈩ᣂ੹࿁䈲࿶ജ෸䈶᷷ᐲ೙ᓮ䈱⹜㛎⚿ᨐ䈱৻଀䉕ႎ๔䈜䉎䇯㩷䉣䊈䊦䉩䊷䊶↥ᬺᛛⴚ✚ว㐿⊒ᯏ᭴䋨㪥㪜㪛㪦䋩䈎䉌ᆔ⸤䉕ฃ㩷䈔䈩ታᣉ䈚䈢䉅䈱䈪䈅䉎䇯㩷䋱䋩࿶ജ೙ᓮ㩷㩷䊥䉱䊷䊋䉺䊮䉪ౝ䈱࿶ജ䉕೙ᓮ䈚䇮♽ౝ䈱࿶ജ䉕৻ቯ▸࿐ෳ⠨ᢥ₂㩷䈮⛽ᜬ䈜䉎䇯೙ᓮ䈲♽ౝᶧ૕⓸⚛䈱৻ㇱ䉕⫳⊒䈘䈞䉎⥄ὼ㪠㫂㪼㫌㪺㪿㫀㪃㩷 㪼㫋㩷 㪸㫃㪃㪒㩷 㪘㪹㫊㫋㫉㪸㪺㫋㫊㩷 㫆㪽㩷 㪚㪪㪡㩷 㪚㫆㫅㪽㪼㫉㪼㫅㪺㪼㪃㩷 㪭㫆㫃㪅㩷 㪏㪉㩷ട࿶ᣇᑼ䇮䊍䊷䉺ട࿶೙ᓮ䇮䉧䉴ട࿶೙ᓮ䉕⚵ว䈞䈢䇯㪽㫀㪾㪅㪉㩿㪉㪇㪈㪇㪀㩷㫇㪅㪈㪇㪇䈮⥄ὼട࿶೙ᓮ․ᕈ䈱৻଀䉕␜䈜䇯೙ᓮ୯ 㪇㪅㪉㪤㪧㪸 䈪䈱ㆇ

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第83回

2010年度秋季低温工学・超電導学会