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Transcript
(1)、磁気応用、Bi 系線材(1) - 公益社団法人 低温工学・超電導学会
1P-p01 計測・物性 㔠ᒓ䛾䝲䞁䜾⋡䛸ῶ⾶䛾 ᗘኚ ᐃ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㼅㼛㼡㼚㼓䇻㼟㻌㼙㼛㼐㼡㼘㼡㼟㻌㼍㼚㼐㻌㼐㼍㼙㼜㼕㼚㼓㻌㼛㼒㻌㼙㼑㼠㼍㼘㼟㻌 㼅㼛㼡㼚㼓㻓㼟㻌㼙㼛㼐㼡㼘㼡㼟㼇㻳㻼㼍㼉 㻌 㔝ᮧ㻌 ⛅அ䠈ᒣᓮ㻌 ㄹ㻘㻌 ⸨㻌 ెᏊ㻘㻌 ᇼ㻌 ⣧ஓ㻘㻌 ⏿୰㻌 ၨస㻔ᒸᒣ⌮㻕㻌 䠪䠫䠩䠱䠮䠝㻌 䠝䡇䡅䡕䡑䡇䡅㻘㻌㼅㻭㻹㻭㻿㻭㻷㻵㻌㻾㼥㼛㼡㻘㻌㻲䠱䠦䠥䠥㻌 䠵䡋䡏䡄䡅䡇䡋㻘㻌㻴㻻㻾㻵㻌㻶㼡㼚䇻㼥㼍㻘㻌㻴㻭㼀㻭㻺㻭㻷㻭㻌㻷㼑㼕㼟㼍㼗㼡䠄䠫䠱䠯䠅㻌 㻌 㻱㻙㼙㼍㼕㼘㻦㻌㼟㻜㻥㼜㼙㻝㻞㼚㼍㻬㼟㼠㼐㻚㼛㼡㼟㻚㼍㼏㻚㼖㼜㻌 㻌 㻝䠊䛿䛨䜑䛻㻌 㻔㼍㻕 䝞䜲䝤䝺䜲䝔䜱䞁䜾䝸䞊䝗ἲ䛷䛿䚸ప ⨨ෆ䛻㓄⨨䛷䛝䜛 㻝㻠㻜 ⛬ᗘ䛾ᑠ䛥䛺ヨᩱ䛷䜒䝲䞁䜾⋡ 䠡㻌 䛸ῶ⾶䂳㻌 䛾 ᐃ䛜䛷䛝䜛䚹 ᮏ◊✲䛷䛿䚸䝞䜲䝤䝺䜲䝔䜱䞁䜾䝸䞊䝗ἲ䜢⏝䛔䛶✀䚻䛾㔠ᒓ 㻝㻞㻜 䛾䝲䞁䜾⋡䛚䜘䜃ῶ⾶䛾 ᗘ౫Ꮡᛶ䜢 ᐃ䛧䛯䚹≉䛻䠝䡈ヨ ᩱ䛻䛴䛔䛶ヲ䛧䛟ㄪ䜉䛯䚹㻌 㻝㻜㻜 㻌㻌㻌㻌 㻤㻜 㻞䠊ヨᩱ䛚䜘䜃 ᐃ᪉ἲ㻌 㻲㼕㼓㻚㻝 䛻 ᐃᅇ㊰䛾ᶍᘧᅗ䜢♧䛩䚹䝞䜲䝤䝺䜲䝔䜱䞁䜾䝸䞊 㻢㻜 䝗ἲ䛷䛿䚸ヨᩱ䛾୍➃䜢䝩䝹䝎䞊䛻ᅛᐃ䛧䚸⮬⏤➃ഃ䛾୧㠃 䛻㟁ᴟ䜢㓄⨨䛩䜛䚹䛣䛾䛣䛸䛻䜘䜚䚸ヨᩱ䛸㟁ᴟ䛾㛫䛷䝁䞁䝕 㻠㻜 㻡㻜 㻝㻜㻜 㻝㻡㻜 㻞㻜㻜 㻞㻡㻜 䞁䝃䞊䛜ᙧᡂ䛥䜜䜛䚹 ᐃ䛷䛿 㻰㼞㼕㼢㼑 㟁ᴟ䛛䜙䛾ὶ㟁ሙ䛻 㼀㼑㼙㼜㼑㼞㼍㼠㼡㼞㼑㼇㻷㼉 䜘䜚ヨᩱ䜢㟁Ẽⓗ䛻ື䛥䛫䚸㻰㼑㼠㼑㼏㼠 㟁ᴟ䛷㟁Ẽᐜ㔞䛾ኚ 䛛䜙䛭䛾ඹ࿘Ἴᩘ䛸ᖜ䛾᳨ฟ䜢⾜䛖䚹㻌 㻯㼡 㻭㼘㻌㻡㻺 㻭㼘㻌㼍㼘㼘㼛㼥 䝞䜲䝤䝺䜲䝔䜱䞁䜾䝸䞊䝗ἲ䛻䛚䛔䛶䚸ゅືᩘ Ȧ 䛸䝲䞁䜾 ⋡ E 䛾㛵ಀ䛿䚸ḟᘧ䛷⾲䛥䜜䜛䚹㻌 㻔㼎㻕 㻌 ȡ㺃Ȧ2㺃l4 㻤㻞 E= 㻌 d2 㻌 㻣㻤 䛣䛣䛷䚸ȡ㻦ᐦᗘ䚸l㻦ᅛᐃ➃䛛䜙ୖ➃䜎䛷䛾㛗䛥䚸d㻦ヨᩱ䛾ཌ 㻣㻠 䛥䛷䛒䜛䚹㻌 䜎䛯䚸ῶ⾶䂳㻌 䛿ḟᘧ䛷ồ䜑䜙䜜䜛䚹㻌 㻣㻜 䂳㻌 䠙㻌 䏓㻌 䃨㻛㻌㻞㻌 㻌 㻌 㻢㻢 䛣䛣䛷䚸䏓䃨䛿್༙ᖜ䛷䛒䜛䚹್༙ᖜ䛿ඹ࿘Ἴᩘ 㼒 䛻䛚 䛡䜛ᖜ䜢䠍㻛 2 ಸ䛧䛯䛝䛥䛻䛺䜛࿘Ἴᩘ䛾ᖜ䛷䛒䜛䚹㻌 㻢㻞 Detect Drive electrode electrode 㻡㻤 Pre-Amplifier 0.47䃛䠢 㼅㼛㼡㼚㼓㻓㼟㻌㼙㼛㼐㼡㼘㼡㼟㻌㼇㻳 㻼㼍㼉 㻟㻜㻜 㻡㻜 Sample Holder 1M: 150䊤 㻝㻜㻜 㻝㻡㻜 㻞㻜㻜 㼀㼑㼙㼜㼑㼞㼍㼠㼡㼞㼑㻌㼇㻷㼉 㻭㼘㻌㻞㻺 Two phase Lock-in Amplifier 㻭㼘㻌㻡㻺 㻞㻡㻜 㻟㻜㻜 㻭㼘㻌㻢㻺 㻲㼕㼓㻚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㼅㼛㼡㼚㼓䇻㼟㻌㼙㼛㼐㼡㼘㼡㼟㻚㻌 Ref. 㻝㻠 Frequency Counter Oscilloscope 㻝㻞 㻌 㻲㼕㼓㻚㻝㻌㻿㼏㼔㼑㼙㼍㼠㼕㼏㻌㼟㼑㼠㻙㼡㼜㻌㼛㼒㻌㼍㻌㼢㼕㼎㼞㼍㼠㼕㼚㼓㻌㼞㼑㼑㼐㻌㼍㼚㼐㻌㼎㼘㼛㼏㼗㻌㼐㼕㼍㼓㼞㼍㼙㻚㻌 㻌 㻟䠊 ᐃ⤖ᯝ㻌 㻲㼕㼓㻚㻞䠄㼍䠅䠄㼎䠅䛻䝲䞁䜾⋡䛾 ᗘ౫Ꮡᛶ䜢♧䛩䚹䠄㼍䠅䛿䠟䡑䚸 䠝䡈㻔䠑䠪㻕䚸䠝䡈ྜ㔠䛾⤖ᯝ䛷䛒䜛䚹ᐊ 䛷䛾್䛿≀⌮ᐃᩘ⾲䛸 䜋䜌୍⮴䛧䛯䚹ᐊ 䛸ᾮయ❅⣲ ᗘ䛾㛫䛷䠟䡑䛷䛿䠍䠒䠂䚸䠝䡈 㻔䠑䠪㻕䛷䛿䠍䠌䠂䚸䠝䡈ྜ㔠䛷䛿䠍䠎䠂䛰䛡䠡㻌 䛜ቑຍ䛧䛯䚹䠄㼎䠅䛻 䠝䡈ヨᩱ䛾ヲ⣽䛺䠡㻌 䛾⤖ᯝ䜢♧䛩䚹⣧ᗘ䛜㧗䛟䛺䜛䛻䛴䜜 䠡 䛾್䛜ᑠ䛥䛟䛺䛳䛶䛔䜛䛣䛸䛜ศ䛛䜛䚹䠝䡈㻔䠎䠪㻕䛷䛿䠕䠂䚸䠒䠪䛷 䛿䠒䠊䠓䠂ቑຍ䛧䛯䚹㻌 㻲㼕㼓㻚㻟 䛻ῶ⾶䛾 ᗘ౫Ꮡᛶ䜢♧䛩䚹䠝䡈㻔䠎䠪㻕䚸䠝䡈ྜ㔠䛷䛿 ༢ㄪ䛻ୗ䛜䜛䛜䚸䠑䠪䚸䠒䠪䛷䛿⣙䠍䠑䠌䠧㏆䛷䝢䞊䜽䛜ぢ䜙 䜜䛯䚹ᡃ䚻䛿䛣䛾䝢䞊䜽䜢䚸ረᛶኚᙧ䛻䜘䛳䛶ᑟධ䛥䜜䛯㌿ 䛜ཎᅉ䛸䛺䛳䛶⏕䛨䜛䝪䝹䝗䞊䝙䞉䝢䞊䜽䛷䛿䛺䛔䛛䛸⪃䛘 䛶䛔䜛䚹㻌 㻰㼍㼙㼜㼕㼚㼓㼇㼟㻙㻝㼉 Voltage Controlled Oscillator ― 98 ― 㻝㻜 㻤 㻢 㻠 㻞 㻜 㻡㻜 㻝㻜㻜 㻝㻡㻜 㻞㻜㻜 㼀㼑㼙㼜㼑㼞㼍㼠㼡㼞㼑㼇㻷㼉 㻭㼘㻌㻞㻺 㻭㼘㻌㼍㼘㼘㼛㼥 㻭㼘㻌㻡㻺 㻞㻡㻜 㻟㻜㻜 㻭㼘㻌㻢㻺 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㼒㻌㼐㼍㼙㼜㼕㼚㼓㻚㻌 第83回 2010年度秋季低温工学・超電導学会 1P-p02 計測・物性 ᨃ୍ḟඖᵓ㐀䜢䜒䛴䜹䝹䝁䝀䞁ྜ≀㉸ఏᑟయ䛾ẚ⇕ ᐃ㻌 㻿㼜㼑㼏㼕㼒㼕㼏㻌㻴㼑㼍㼠㻌㼛㼒㻌㻯㼔㼍㼘㼏㼛㼓㼑㼚㼕㼐㼑㻌㻿㼡㼜㼑㼞㼏㼛㼚㼐㼡㼏㼠㼛㼞㻌㼣㼕㼠㼔㻌㻽㼡㼍㼟㼕㻌㻻㼚㼑㻙㻰㼕㼙㼑㼚㼟㼕㼛㼚㼍㼘㻌㻿㼠㼞㼡㼏㼠㼡㼞㼑㻌 ᒣ⏣㻌 ┿୍㑻䠄ᒸᒣ⌮䠅䠗㉥ሯ㻌 ᬛ⣖㻔䝆䜵䝑䜽ᮾ⌮♫㻕䠗⏣㻌 ಟᖹ䠈እᅬ㻌 ๛ኈ䠈⸨㻌 ెᏊ䠈ᇼ㻌 ⣧ஓ㻔ᒸᒣ⌮㻕㻌 㼅㻭㻹㻭㻰㻭㻌㻿㼔㼕㼚㼕㼏㼔㼕㼞㼛䠈㻭㻷㻭㼀㼁㻷㻭㻌㼀㼛㼙㼛㼚㼛㼞㼕㻔㻶㻱㻯㻯㻌㼀㼛㼞㼕㼟㼔㼍㻕䠈㻻㼀㻭㻌㻿㼔㼡㼔㼑㼕䠈㻴㻻㻷㻭㼆㻻㻺㻻㻌㻳㼛㼡㼟㼔㼕㻌 㻲㼁㻶㻵㻵㻌㼅㼛㼟㼔㼕㼗㼛䠈㻴㻻㻾㻵㻌㻶㼡㼚䇻㼥㼍㻔㻻㼁㻿㻕㻌 㻱㻙㼙㼍㼕㼘㻦㻌㼟㻜㻥㼜㼙㻝㻢㼥㼟㻬㼟㼠㼐㻚㼛㼡㼟㻚㼍㼏㻚㼖㼜㻌 㻝䠊䛿䛨䜑䛻㻌 䜹䝹䝁䝀䞁ྜ≀ 㻭㼄㼂㻢㻿㻤㻔㻭㻩㻵㼚㻘㼀㼘㻘㻷㻕䛿䚸㻺㼎㻟㻿㻠 ᵓ㐀䜢᭷䛧䚸 㼏 ㍈᪉ྥ䛻භゅᙧ䛾䝖䞁䝛䝹䜢ᙧᡂ䛧䚸㻭 ඖ⣲䛿䝖䞁䝛䝹䛾୰ 䛻⨨䛧䛶䛔䜛䚹䜎䛯䚸㼍 ㍈㻙㼎 ㍈㠃䛻䛚䛡䜛 㼂㻙㼂 㛫㊥㞳䛻ẚ 䜉䚸㼏 ㍈᪉ྥ䛾 㼂㻙㼂 㛫㊥㞳䛜▷䛟䛺䛳䛶䛔䜛䛣䛸䛛䜙䚸㼂㻙㼂 䝆 䜾䝄䜾㙐䛜 㼏 ㍈᪉ྥ䛻୪䜣䛰ᨃ୍ḟඖᵓ㐀䜢䛺䛧䛶䛔䜛䚹㻌 䛣䜜䜙䛾≀㉁䛾㉸ఏᑟ㌿⛣ᶵᵓ䜢᫂䜙䛛䛻䛩䜛䛯䜑䚸⇕ ⦆ἲ䛻䜘䜚 㻜㻚㻝㻷 䛛䜙 㻟㻚㻣㻷 䛾 ᗘᇦ䛷ẚ⇕ ᐃ䜢⾜䛳䛶䛔 䜛䚹⇕ᐜ㔞䛾ᑠ䛥䛺ヨᩱ䛾ẚ⇕䜢⢭ᗘⰋ䛟 ᐃ䛩䜛䛯䜑䛻䛣 㻲㼕㼓㻚㻝㻌㻯 㻛㼀㻌 㼢㼟㻚㻌㼀 㻞㻚㻌 㻿㼙㼍㼘㼘㻌㼟㼔㼛㼡㼘㼐㼑㼞㻌㼕㼟㻌㼟㼑㼑㼚㻌㼚㼑㼍㼞㻌㼍㼚㻌㼍㼞㼞㼛㼣㻚㻌 䜜䜎䛷ᕤኵ䜢㔜䛽䛶䛝䛯䚹㻌 㻞䠊 ᐃ㻌 ヨᩱ䛿䚸㼀㼘㼂㻢㻿㻤 䛾ᚤ⤖ᬗ䜢↝⤖䛧䛯䜒䛾㻔ᒸᒣ⌮䞉Ꮫ 㻯㼡㻌㼒㼛㼕㼘 㻺㼎㻙㼀㼕㻌㼣㼕㼞㼑㻌 ⛉䞉㇂◊〇స㻕䜢⏝䛔䛯䚹㻲㼕㼓㻚㻝 䛻䛣䜜䜎䛷䛾 ᐃ䛷ᚓ䜙䜜䛯 㻞 ẚ⇕ 㻯 䛾⤖ᯝ䜢䚸⦪㍈ 㻯㻛㼀䚸ᶓ㍈ 㼀 䛷♧䛩䚹㻞㻚㻡㻷 ㏆䛻ᑠ 㻼㼠㻌㼣㼕㼞㼑㻌 㻭㼓㻌㼒㼛㼕㼘㻌 㻿㼍㼙㼜㼘㼑㻌 䛥䛺ẚ⇕䛾ᒣ䛜ぢ䜙䜜䛯䚹୍᪉䚸☢⋡ ᐃ䛷䛿⣙ 㻞㻚㻢㻷 䛷 ☢ ⋡ 䛾 䛝 䛺 ῶ ᑡ 䛜 ぢ 䜙 䜜 䛯 䚹 ᖖ ఏ ᑟ ≧ ែ 䛾 ẚ ⇕ 䛿㻌 㻌 㻌 㼀㼔㼑㼞㼙㼛㼙㼑㼠㼑㼞㻌 㻌 㻔㻾㼡㻻㻞㻕㻌 㻯㻩䃒㼀㻗䃑㼀㻟 䛷⾲䛥䜜䚸㌿⛣ ᗘ 㼀㻯 ௨ୖ䛾 ᐃ䜘䜚䚸㟁Ꮚẚ 㻺㼎㻙㼀㼕㻌㼣㼕㼞㼑㻌 㻔㻭㻕㻌 ⇕ᐃᩘ㻔䃒㻕䛸᱁Ꮚẚ⇕ᐃᩘ㻔䃑㻕䛜ồ䜑䜙䜜䜛䚹㼀㻯 ௨ୗ䛾㟁Ꮚ 㻴㼑㼍㼠㼑㼞㻌 㻔㻮㻕㻌 㻲㼕㼓㻚㻞㻌 㻿㼏㼔㼑㼙㼍㼠㼕㼏㻌㼐㼞㼍㼣㼕㼚㼓㻌㼛㼒㻌㼍㻌㼟㼍㼙㼜㼘㼑㻌㼏㼑㼘㼘㻚 㻔㻭㻕㻌㼁㼜㼜㼑㼞㻌㼟㼕㼐㼑㻚㻌㻔㻮㻕㻌㼁㼚㼐㼑㼞㻌㼟㼕㼐㼑㻚㻌 ẚ⇕䛾್䛿䚸 ᐃ䛧䛯⇕ᐜ㔞䜘䜚᱁Ꮚẚ⇕䛾್䜢ᘬ䛔䛶ồ䜑 䜛䛾䛷䚸䃑䛾್䜢ṇ☜䛻▱䜛ᚲせ䛜䛒䜛䚹ᕼ㔘෭ᶵ䜢䛳 䛯 ᐃ䛷䛿 㻠㻷 ௨ୖ䛾 ᐃ䛿㞴䛧䛔䛾䛷䚸ヨᩱ䛻☢ሙ䜢༳ຍ 㻹㼕㼤㼕㼚㼓㻌㼏㼔㼍㼙㼎㼑㼞㻌 䛧䚸ᖖఏᑟ㡿ᇦ䜢ప ഃ䛻ᗈ䛢䛶 ᐃ䜢⾜䛖䛣䛸䛻䛧䛯䚹㻌 㼂㼍㼏㼡㼡㼙㻌㼏㼍㼚㻌 ヨᩱ㒊䛾ᙧ≧䛿 㻲㼕㼓㻚㻞 䛻♧䛩䜘䛖䛻๓ᅇ䜎䛷䛾 ᐃ䛸ྠ䛨 㻯㼛㼘㼐㻌㼜㼘㼍㼠㼑㻌 䛷䛒䜛䚹ᅇ䚸ΰྜᐊ䛻㐃䛺䜛⇕ᾎ䛾㒊ศ䜢 㻲㼕㼓㻚㻟 䛻♧䛩䜘䛖 䛻〇స䛧䛯䚹ヨᩱ㒊䛾 ᗘィ䛻䛿 㻾㼡㻻㻞 ᢠ ᗘィ㻔㻝㼙㼙㽢 㻞㼙㼙㽢㻜㻚㻡㼙㼙㻕䜢䚸䝠䞊䝍䞊䛻䛿䝇䝖䝺䜲䞁䝀䞊䝆㻔ᐊ ᢠ 㻯㼡㻌㼟㼡㼜㼜㼛㼞㼠㻌 㻾㼡㻻㻞 㼠㼔㼑㼞㼙㼛㼙㼑㼠㼑㼞㻌 㻟㻡㻜䃈㻕䜢⏝䛔䛯䚹 ᗘィ䛸䝠䞊䝍䞊䛾䝸䞊䝗⥺䛻䛿 㻺㼎㻙㼀㼕 ㉸ఏ ᑟ⥺䜢⏝䛔䚸䝠䞊䝍䞊䛾䝸䞊䝗⥺䛷 ᐃ䝉䝹䜢ᨭᣢ䛧䛯䚹⇕ᾎ 䛸ヨᩱ㒊䜢⤖䜆⇕ᢠ⥺䛻䛿ⓑ㔠⥺㻔䃥㻡㻜䃛㼙㽢㻞㻜㼙㼙㻕䜢⏝ 䛔䛯䚹ヨᩱ㒊䛸ΰྜᐊ䛾㛫䛾㖡䛾ᨭᰕ䛿䚸⇕ఏᑟ䜢Ⰻ䛟䛩䜛 㻿㼡㼜㼑㼞㼏㼛㼚㼐㼡㼏㼠㼕㼚㼓㻌 㼙㼍㼓㼚㼑㼠㻌 㻿㼍㼙㼜㼘㼑 䛸ඹ䛻䚸 㟁ὶ䛻䜘䜛 ᗘ䛾ኚື䜢ᢚ䛘䜛䜘䛖䛺ᵓ㐀䛻䛧䛯䚹㻌 ᗘ ᐃ䛻䛿ὶ䝤䝸䝑䝆㻔㻭㼂㻿㻙㻠㻢㻕䜢䚸ヨᩱ䛾⇕⦆ 㻾㼍㼐㼕㼍㼠㼕㼛㼚㻌㼟㼔㼕㼑㼘㼐㻌 ᐃ䛻䛿䝻䝑䜽䜲䞁䜰䞁䝥㻔㻿㻾㻤㻟㻜㻕䜢⏝䛔䛯䚹Ꮫ䛷䛿 ᐃ⤖ᯝ 䛻䛴䛔䛶ሗ࿌䛩䜛䚹㻌 ― 99 ― 㻲㼕㼓㻚㻟㻌 㻿㼏㼔㼑㼙㼍㼠㼕㼏㻌㼐㼞㼍㼣㼕㼚㼓㻌㼛㼒㻌㼍㻌㼏㼞㼥㼛㼟㼠㼍㼠㻌 㼎㼑㼘㼛㼣㻌㼙㼕㼤㼕㼚㼓㻌㼏㼔㼍㼙㼎㼑㼞㻚㻌 第83回 2010年度秋季低温工学・超電導学会 1P-p03 計測・物性 ᕼ㔘෭ᶵ⏝ 㻺㻹㻾 ඹᅇ㊰䛾ᨵⰋ㻌 㻵㼙㼜㼞㼛㼢㼑㼙㼑㼚㼠㻌㼛㼒㻌㻺㻹㻾㻌㼏㼕㼞㼏㼡㼕㼠㻌㼒㼛㼞㻌㼐㼕㼘㼡㼠㼕㼛㼚㻌㼞㼑㼒㼞㼕㼓㼑㼞㼍㼠㼛㼞㻌 㻌 ᖹᒸ▱ጾ㻘ྂ㛩㢧୍㻘ᒸ⏣㑥ⱥ㻘⸨᐀᫂䠄⇃ᮏ䠅㻌 㻴㻵㻾㻭㻻㻷㻭㻌㼀㼛㼙㼛㼠㼍㼗㼑㻘㻷㻻㻳㻭㻌㻷㼑㼚㼕㼠㼕㻘㻻㻷㻭㻰㻭㻌㻷㼡㼚㼕㼔㼕㼐㼑㻘㻲㼁㻶㻵㻵㻌㻹㼡㼚㼑㼍㼗㼕㻌㻔㻷㼡㼙㼍㼙㼛㼠㼛㻌㼡㼚㼕㼢㼑㼞㼟㼕㼠㼥㻕㻌 㻱㻙㼙㼍㼕㼘㻦㻌㼒㼡㼖㼕㼙㼡㼚㼑㻬㼟㼏㼕㻚㼗㼡㼙㼍㼙㼛㼠㼛㻙㼡㻚㼍㼏㻚㼖㼜㻌 㻌 㻝䠊䛿䛨䜑䛻㻌 ᕼ㔘෭ᶵࢆ⏝࠸࡚ P. ᗘᇦ࡛ࡢᙉ☢ᛶయࡢ☢Ẽ ⛛ᗎࡢ◊✲ࢆ⾜ࡗ࡚࠸ࡿࠋࢫࣆࣥ㛫ࡢ┦స⏝ࠊ㉸ ┦స⏝ࠊ㉸ᚤ⣽┦స⏝ࡘ࠸࡚᰾☢Ẽඹ㬆105 ࢆ ᐃࡋ࡚ヲ⣽࡞ሗࢆᚓ࡚࠸ࡿࠋ105 ࡢಙྕᙉᗘࢆࡁ ࡃࡍࡿࡣࠊヨᩱඹᅇ㊰ࡢ㊥㞳ࡣ㏆࠸᪉ࡀⰋ࠸ࡀࠊ ヨᩱࡢ෭༷ࡢࡓࡵࡣ㞳ࢀ࡚࠸ࡿ᪉ࡀⰋ࠸ࠋࡇࡢ▩┪ࢆ ゎỴࡍࡿࡓࡵࡢᨵⰋࡘ࠸࡚Ⓨ⾲ࡍࡿࠋ 䠎䠊ప 䛷䛾ᐇ㦂㻌 ㏻ᖖࡢ 105 ᐇ㦂࠾࠸࡚ࢥࣝࡢ୰ᤄධࡍࡿヨᩱࢆࠊ ᅇࡢᐇ㦂࡛ࡣࢥࣝࡽ FP ⛬ᗘᨺࡋ࡚ᐇ㦂ࡋࡓࡇ ࢁࠊศ࡞ឤᗘ࡛ 105 ಙྕࡀほ ࡉࢀࡓࠋᅗ㸯ᕼ㔘෭ ᶵࡢΰྜᐊ㒊ศ࠾ࡅࡿヨᩱࢥࣝࡢ㓄⨨ࢆ♧ࡍࠋ 㻌 㻌 Fig.2 (A) Magnetic field lines made by a coil. (B) The lines made by a coil in a copper tube. ᅗ ࡣᐊ ࡛ࡢ 105 ࡢᐇ㦂⨨ࢆ♧ࡍࠋ⏝࠸ࡓヨᩱࡣ ࢦ࣒ࡢ୰ࡢࣉࣟࢺ࡛ࣥ࠶ࡾࠊ105 ࿘Ἴᩘࡣ 0+] ࡛࠶ࡗࡓࠋ ヨᩱࢆࢥࣝࡽ PP 㛫㝸࡛እືࡋࡓࠋࡑࡢࡢ 105 ಙྕࡢᙉᗘኚࢆ ᐃࡋࠊᩘ್ィ⟬ࡢ⤖ᯝẚ㍑ࡋࡓࠋ Fig.1 Dilution refrigerator for NMR ඹᅇ㊰ࡢࢥࣝ୰ヨᩱࡀ࡞ࡃ࡚ࡶ༑ศ࡞ಙྕᙉᗘ ࡀᚓࡽࢀࡓ⌮⏤ࡣࢥࣝࢆᅖࢇ࡛࠸ࡿ᩿⇕㖡⟶ᙉ࠸㧗 ࿘Ἴ㟁ὶࡀㄏ㉳ࡉࢀࡓࡓࡵ⪃࠼ࡽࢀࡿࠋࡇࢀࢆ᳨ドࡍ ࡿࡓࡵࠊ௨ୗࡢᐇ㦂ᩘ್ィ⟬ࢆ⾜ࡗࡓࠋ 䠏䠊ᐊ 䛷䛾ᐇ㦂䛸ᩘ್ィ⟬㻌 ᅗ ࡢ$ ᕳࡁࡢࢥࣝ㟁ὶࢆὶࡋࡓࡁࡢࢥ ࣝࡢ࿘ᅖฟ᮶ࡿ☢ຊ⥺ࢆ♧ࡍࠋ%㖡⟶ࡢ୰ࢥࣝ ࢆධࢀࡓࡁࡢ☢ຊ⥺ࡢᵝᏊࢆ♧ࡍࠋᅗࡽ᫂ࡽ࡞ࡼ ࠺☢ຊ⥺ࡣ㖡⟶ࡢ୰ᅽ⦰ࡉࢀ࡚࠸ࡿࠋࡑࡢ☢ሙࡢᙉ ᗘࡢኚࢆලయⓗぢ✚ࡶࡿࡓࡵ㙾ീ㟁ὶࡢ᪉ἲࢆ㐺 ⏝ࡋࠊᩘ್ィ⟬ࢆヨࡳࡓࠋ Fig.3 Rubber (sample) in and out of coil for NMR experiment ཧ⪃ᩥ⊩㻌 䠍䠊T. Hiraoka, T. Simamoto, K. Okada and M.Fujii: Cry. Rep. Kumamoto Univ. Vol.18(2007)pp.55-69. ― 100 ― 第83回 2010年度秋季低温工学・超電導学会 1P-p04 計測・物性 㼂㼕㼎㼞㼍㼠㼕㼚㼓㻌㻾㼑㼑㼐 ἲ䛻䜘䜛Ỉ⣲ᣑᩓ≧ែ䛾ほᐹ㻌 㻿㼠㼍㼠㼑㻌㼛㼎㼟㼑㼞㼢㼍㼠㼕㼛㼚㻌㼛㼒㻌㼔㼥㼐㼞㼛㼓㼑㼚㻌㼟㼏㼍㼠㼠㼑㼞㼕㼚㼓㻌㼎㼥㻌㼢㼕㼎㼞㼍㼠㼕㼚㼓㻌㼞㼑㼑㼐㻌㼙㼑㼠㼔㼛㼐㻌 㻌 㔜ᯇ㻌 ಙ䠄బୡಖ㧗ᑓ䠅䠗ᑠ㔝㻌 ᩥឿ䠄బ㈡䠅䠗ἙỤ㻌 㐩ஓ䠄ᕤ䠅䠗ᶫ∎㻌 ୍䠄⥲⌮ᕤ䠅㻌 䠯䠤䠥䠣䠡䠩䠝䠰䠯䠱㻌 䠰䡋䡏䡄䡅䡊䡋䠾䡑䠄㻿㼍㼟㼑㼎㼛㻌㻺㼍㼠㼕㼛㼚㼍㼘㻌㻯㼛㼘㼘㼑㼓㼑㻌㼛㼒㻌㼀㼑㼏㼔㻚䠅㻧㻌 㻌 㻻㻺㻻㻌㻮㼡㼚㼖㼕㻔㻿㼍㼓㼍㻌㼁㼚㼕㼢㻚㻕㻧㻌㻷㻭㼃㻭㻱㻌㼀㼍㼠㼟㼡㼥㼍㻔㻷㼥㼡㼟㼔㼡㻌㼁㼚㼕㼢㻚㻕㻧㻌㻴㻭㻿㻴㻵㼆㼁㻹㻱㻌㻷㼑㼚㼕㼏㼔㼕㻔㻷㼥㼡㼟㼔㼡㻌㼁㼚㼕㼢㻚㻕㻌 㻱㻙㼙㼍㼕㼘㻦㻌㼟㼔㼕㼓㼑㻬㼜㼛㼟㼠㻚㼏㼏㻚㼟㼍㼟㼑㼎㼛㻚㼍㼏㻚㼖㼜㻌 㻌 ᜏ ᵴ䛾䝏䝱䞁䝞䞊ෆ䛷Ỉ⣲㞺ᅖẼ䜢స䛳䛶ᐇ㦂䜢⾜䛳䛶 㻝䠊䛿䛨䜑䛻㻌 䛔䜛䚹䛭䛾㝿䚸䝺䞊䝄䝗䝑䝥䝷ᖸ΅ィ䛿䝏䝱䞁䝞䞊እ䛻タ⨨䛧䚸 ᡃ䚻䛿䛣䜜䜎䛷㔠ᒓ୰䛾Ỉ⣲䛾ᣲື䜢ほ 䛩䜛┠ⓗ䛷 䜺䝷䝇❆䜢㏻䛧䛶 ᐃ䛷䛝䜛䜘䛖䛻䛧䛯䚹㻌 㼂㼕㼎㼞㼍㼠㼕㼚㼓㻌 㻾㼑㼑㼐 ἲ䛻䜘䜛ᐇ㦂⨨䛾㛤Ⓨ㐍䜑䛶䛝䛶䛚䜚䚸㔠 㻌 ᒓ䛾ඹ࿘Ἴᩘ䛾 ᗘ౫Ꮡ䛾 ᐃ⤖ᯝ䠄㻲㼕㼓㻚㻝 ཧ↷䠅䜔䚸Ỉ 㻟䠊 ᐃ⤖ᯝ㻌 ⣲䜢ྵ䜣䛰㔠ᒓ䛾ඹ࿘Ἴᩘ䛾 ᗘ౫Ꮡ䛾 㼒㼕㼞㼟㼠㻌 㼐㼍㼠㼍㻌 䜢ሗ ヨᩱ䛿䠯䠱䠯㻟㻜㻠 䛷䛒䜚䚸 ᐃ ᗘ䛿ᐊ 䛷䛒䜛䚹Ỉ⣲㞺 ࿌䛧䛯䠎䠅䚹㻌 ᅖẼ୰䛸┿✵୰䛷䛾ඹᩘ࿘Ἴᩘ䛾㛫ኚ䜢䠢䡅䡃㻚䠏䛻䠭 䛸䛣䜝䛷䚸㔠ᒓෆ䛾Ỉ⣲䛾ᣑᩓ⌧㇟䛿ᐊ ㏆䛷䛿⇕ᣑ ್䛾㛫ኚ䜢 㻲㼕㼓㻚㻠 䛻♧䛩䚹 ᐃ䝕䞊䝍䛾䜀䜙䛴䛝䛜䛝 ᩓ䛜䛷䛒䜛䛜䚸❅⣲ ᗘ௨ୗ䛷䛿䝖䞁䝛䝹ຠᯝ䛻䜘䜛ᣑᩓ 䛟䚸᫂䜙䛛䛺䛣䛸䛿ゝ䛘䛺䛔䛜䚸ඹ࿘Ἴᩘ䠈䠭್䛸䜒䛻Ỉ⣲ 䛜䛸䛺䜚䚸䛭䛾ᣑᩓ㏿ᗘ䜒ᐊ 䛷 㻜㻚㻝䡉䡉㻛㼔 䛸ẚ㍑ⓗ㏿䛔䛣 㞺ᅖẼ୰䛷䛾 ᐃ⤖ᯝ䛾᪉䛜㛫⤒㐣䛻క䛳䛶ୗ䛜䛳䛶䛔 䛸䛜▱䜙䜜䛶䛔䜛䠍䠅䚹㻌 䜛䜘䛖䛻ぢ䛘䜛䚹㻌 䛭䛣䛷䚸䛭䛾⨨䛾Ỉ⣲䛾Ꮡᅾ᭷↓䛻䜘䜛ឤᗘ䜢ㄪ䜉䜛 㻌 ┠ⓗ䛷䚸ᐊ 䛷Ỉ⣲ᣑᩓ୰䛾㔠ᒓⷧᯈ䛾ඹ࿘Ἴᩘ䛾ኚ 㻌 ཬ䜃䠭್䛾ኚ䜢 ᐃ䛧䛯䚹㻌 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 㻲㼕㼓㻚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㼞㼑㼟㼛㼚㼍㼚㼏㼑㻌㼒㼞㼑㼝㼡㼑㼚㼏㼥 㻌 㻌 㻌 㻌 㻌 㼛㼒㻌㻭㼘㼡㼙㼕㼚㼡㼙㻌㼟㼍㼙㼜㼘㼑㻚㻌 㻲㼕㼓㻚㻟㻌㼀㼕㼙㼑㻌㼐㼑㼜㼑㼚㼐㼑㼚㼏㼑㻌㼛㼒㻌㼞㼑㼟㼛㼚㼍㼚㼏㼑㻌㼒㼞㼑㼝㼡㼑㼚㼏㼥㻌 㻌 㻌 㻌 㻌 㻌 㻌 㼍㼠㻌㼞㼛㼛㼙㻌㼠㼑㼙㼜㼑㼞㼍㼠㼡㼞㼑㻚㻌 㻌 㻌 㻞䠊ᐇ㦂⨨㻌 㻌 䠲䡅䠾䡎䠽䡐䡅䡊䡃㻌 䠮䡁䡁䡀ἲ䜢⏝䛔䛯 ᐃᅇ㊰⣔⤫ᅗ䜢䠢䡅䡃㻚㻞 䛻 㻌 ♧䛩䚹ᐊ 䛾Ⓨჾ䛛䜙䛾ಙྕ䛜ప 㒊䛾ᐇ㦂䝉䝹㒊䛾㟁 㻌 ᴟ䛻ఏ䛘䜙䜜䚸䝃䞁䝥䝹䛿ḟᘧ䛻ᚑ䛖ຊ䛷ᘬ䛛䜜䜛䚹㻌 2 㻌 1 §V · 㻌 F H0¨ ¸ S 㻌 2 ©"¹ 㻌 䛣䛣䛷䚸䠲䛿㟁ᅽ䠈䠯䛿㟁ᴟ㠃✚䠈䉭䛿㟁ᴟ䠉䝃䞁䝥䝹㛫㊥㞳 㻌 䛷䛒䜛䚹䛭䛾ື䜢ᐊ 䛻タ⨨䛧䛯䝺䞊䝄䝗䝑䝥䝷ᖸ΅ィ䛷䝢 㻌 䝑䜽䜰䝑䝥䛩䜛䚹䛸䛣䜝䛷䚸ᐇ㦂䝉䝹䛿╔⨨䜢ᨵⰋ䛧䛯㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻲㼕㼓㻚㻠㻌㼀㼕㼙㼑㻌㼐㼑㼜㼑㼚㼐㼑㼚㼏㼑㻌㼛㼒㻌㻽㻙㼢㼍㼘㼡㼑㻌㼍㼠㻌㼞㼛㼛㼙㻌㼠㼑㼙㼜㼑㼞㼍㼠㼡㼞㼑㻚㻌 㻌 㻌 㻌 㻌 㻌 ཧ⪃ᩥ⊩㻌 㻌 㻝㻚㻌 Ỉ⣲䛸㔠ᒓ䠈῝᭷䞉⏣୰୍ⱥ䞉ෆ⏣⿱ஂⴭ䠈ෆ⏣⪁㭯ᅡ㻌 㻌 㼜㻚㻝㻞㻟㻌㻔㻝㻥㻥㻟㻕㻌 㻌 㻌 㻌 㻌 㻲㼕㼓㻚㻞㻌㻿㼏㼔㼑㼙㼍㼠㼕㼏㻌㼟㼑㼠㼡㼜㻌㼛㼒㻌㼢㼕㼎㼞㼍㼠㼕㼚㼓㻌㼞㼑㼑㼐㻌㼍㼚㼐㻌 㻌 㻞㻚㻌 䠰㻚㻿㼔㼕㼓㼑㼙㼍㼠㼟㼡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 㻌 㻔㻞㻜㻜㻥㻕㻌㼜㻚㻞㻞㻥㻌 㼎㼘㼛㼏㼗㻌㼐㼕㼍㼓㼞㼍㼙㻌㼒㼛㼞㻌㼙㼑㼍㼟㼡㼞㼑㼙㼑㼚㼠㼟㻌 ― 101 ― 第83回 2010年度秋季低温工学・超電導学会 1P-p05 計測・物性 ᾮయ䝦䝸䜴䝮୰䛷䛾䜹䞊䝪䞁䝘䝜䝏䝳䞊䝤䛾⏕ᡂᐇ㦂䛚䜘䜃⏕ᡂ䝅䝭䝳䝺䞊䝅䝵䞁 Experiments and Simulations of Creating Carbon䇲Nanotubes in liquid Helium బୡಖᕤᴗ㧗➼ᑓ㛛Ꮫᰯ ᑎ㷂 ⩏ᮁ䚸ᇛ㔝 ♸⏕䚸㔜ᯇ ಙ䚸ᕝᓮ ோᬕ Sasebo National College of Technology : T.Yoshiro, Y.Johno, T.Shigematsu, H.Kawasaki 1.䛿䛨䜑䛻 ప ᾮయ୰䜢⏝䛔䛯䜹䞊䝪䞁䝘䝜≀㉁⏕ᡂ䛿䚸Ⅳ⣲ཎᏊ䛾 TOF 䛜ᘏ䜃䜛䛣䛸䛛䜙䚸⏕ᡂ䝯䜹䝙䝈䝮䛾ゎ᫂䛾⣒ཱྀ䛻䛺䜛䛸 ᮇᚅ䛥䜜䛶䛔䜛䚹䛭䛣䛷䚸ᡃ䚻䛿ᾮయ䝦䝸䜴䝮୰䛷䜹䞊䝪䞁䝘 䝜≀㉁䜢⏕ᡂ䛩䜛ᐇ㦂䜢䚸䜰䞊䜽ᨺ㟁ἲ䜢⏝䛔䛶⾜䛳䛶䛔䜛䚹 ⌧ᅾ䛾䛸䛣䜝ከᒙ䜹䞊䝪䞁䝘䝜䝏䝳䞊䝤䛾⏕ᡂ䛻䛿ᡂຌ䛧䛶 Fig.1 䛿䝅䝭䝳䝺䞊䝅䝵䞁⤖ᯝ䚸Fig.2 䛿ᐇ㦂䛻䜘䛳䛶ᚓ䜙䜜 䛯ศග ᐃ⤖ᯝ䛷䛒䜛䚹㻌 1䠅䚹䛥䛶䚸⏕ᡂ㐣⛬䜢ほ 䛩䜛䛯䜑䛻䛿䚸⏕ᡂ䝇䝢䞊䝗䜢 The number of carbon clusters contain certain number of carbon atoms 䛔䜛 4.⤖ᯝ䛸⪃ᐹ ぢ✚䜒䜛ᚲせ䛜䛒䜛䚹䛭䛣䛷䚸ᅇ䚸ศᏊືຊᏛἲ䜢⏝䛔䛶䚸 ᨺฟ䛥䜜䛯Ⅳ⣲ཎᏊ䛜㐺ᗘ䛺䝃䜲䝈䜎䛷䛹䛾䛟䜙䛔䛾㛫䛷 ᡂ㛗䛩䜛䛾䛛䜢ண 䛧䛯䚹 2.䜶䝛䝹䜼䞊ᦆኻ ᾮయ䝦䝸䜴䝮୰䛷䛾ᨺ㟁ᐇ㦂䛻䛚䛔䛶ᨺฟ䛥䜜䛯Ⅳ⣲ཎᏊ 500 400 1 300 2 200 100 3 0 4 0 200 400 7LPH>ǍV@ 䛜䜶䝛䝹䜼䞊䜢ᦆኻ䛩䜛ᡭ㡰䛿ḟ䛾䜘䛖䛻䛺䜛䛸⪃䛘䛶䛔䜛䚹 Fig.1 The number of carbon cluster 䐟24.6eV 䜎䛷䚸㟁☢┦స⏝䛻䜘䜛䜶䝛䝹䜼䞊ᦆኻ 䐠4.2K 䜎䛷䚸He ཎᏊ䛸䛾ᙎᛶᩓ䛻䜘䜛䜶䝛䝹䜼䞊ᦆኻ 䛣䛾䜶䝛䝹䜼䞊ᦆኻ䛻䜘䜛 TOF 䛿䚸⣙ 40 ੇ䛸ぢ✚䜒䜙䜜䜛䚹 䛣䛾ᅗ䛛䜙Ⅳ⣲ཎᏊ 2 ಶ䜢ྵ䜣䛰䜽䝷䝇䝍䛾ᩘ䛿 0.1ms 䜎䛷 䛻ᩘከ䛟⏕ᡂ䛥䜜䛶䛔䜛䛣䛸䛜䜟䛛䜛䚹 ୍᪉䚸ᨺฟ䛥䜜䛯Ⅳ⣲ཎᏊ䛾 mean free path 䛿䡚200 ੇ䛸 ぢ✚䜒䜜䜛䛣䛸䛛䜙䚸䜹䞊䝪䞁ཎᏊ䛿 4.2K 䛾䜶䝛䝹䜼䞊≧ែ 䛷⤖ྜ䛩䜛䛸⪃䛘䜛䛣䛸䛜䛷䛝䜛䚹䛭䛣䛷䚸ᮏ䝅䝭䝳䝺䞊䝅䝵䞁䛿䚸 Ⅳ⣲ཎᏊ䛜 4.2K 䛾䜶䝛䝹䜼䞊䛷ᾮయ䝦䝸䜴䝮୰䜢⁻䛳䛶䛔 䜛䛸䛣䜝䛛䜙䝇䝍䞊䝖䛥䛫䛯䚹 3.䝅䝭䝳䝺䞊䝅䝵䞁 Fig.2 Emission intensity of every wavelength 䛣䛾䝅䝭䝳䝺䞊䝅䝵䞁䛷䛿ศᏊືຊᏛἲ䜢⏝䛔䛯䚹Ⅳ⣲ཎᏊ 䛻䛿䛭䜜䛮䜜⨨䛸㏿ᗘ䜢䛘䚸䛭䛾⨨䛿ᩘ䛷䚸㏿ᗘ䛿 ᾮయ䝦䝸䜴䝮୰䛷䛾ᨺ㟁ᐇ㦂䛻䛚䛔䛶ᚓ䜙䜜䛯ศග䝇䝨䜽䝖 䝬䜽䝇䜴䜵䝹ศᕸ䛻ᚑ䛖䜘䛖䛻タᐃ䛧䛯䚹Ⅳ⣲ཎᏊ䛾ᐦᗘ䛿 䝹䜢 Fig.2 䛻♧䛧䛶䛔䜛䚹C2 ศග䝇䝨䜽䝖䝹䛜䛹䛾㛫ᖏ䛻䜒 ᡃ䚻䛾㐣ཤ䛾ᐇ㦂⤖ᯝ䜢ᇶ䛻Ỵ䜑䛶䛔䜛䚹Ⅳ⣲ཎᏊྠኈ䛜 䛭䜜䛜ぢ䜙䜜䜛䛣䛸䛛䜙䚸ᑡ䛺䛟䛸䜒 25ms 䛻䛿 C2 䛜⏕ᡂ䛥 ⾪✺䛩䜛䛸䛝䛻䛿䚸ᚲ䛪⤖ྜ䛧䚸䜹䞊䝪䞁䜽䝷䝇䝍䛻䛺䜛䛸䛧䛯䚹 䜜䛶䛔䜛䛸⪃䛘䜙䜜䜛䚹䛣䛾䛣䛸䛿䚸0.1ms 䛻䛿䛩䛷䛻 C2 䛜 䜎䛯䚸䜽䝷䝇䝍ྠኈ䛜⾪✺䛩䜛䛸䛝䛻䛿䚸䜽䝷䝇䝍䛾➃ྠኈ䛜⾪ ⏕ᡂ䛥䜜䛶䛔䜛䛸䛔䛖䝅䝭䝳䝺䞊䝅䝵䞁⤖ᯝ䛸୍⮴䛩䜛䚹 ✺䛩䜜䜀⤖ྜ䛩䜛䛸䛧䚸䛭䛖䛷䛺䛔䛸䛝䛻䛿⤖ྜ䛫䛪䚸 ᙎᛶ⾪✺䛩䜛䛸䛧䛯䚹⾪✺ᚋ䛾䜽䝷䝇䝍䛾㏿ᗘ䛸㉁㔞䛿㐠ື㔞 ཧ⪃ᩥ⊩ ಖᏑ๎䛻ᚑ䛖ḟ䛾ᘧ䛷ィ⟬䛧䛶䛔䜛䚹㻌 1䠅T.Shigematsu.,Trans.Mater.Res.Soc.Jpn.,32[1](2007) ― 102 ― 第83回 2010年度秋季低温工学・超電導学会 1P-p06 計測・物性 䝅䞊䝹䝗䝎䜲䝺䜽䝖䜹䝑䝥䝹ᆺ 㻴㼀㻿㻌㼐㼏㻙㻿㻽㼁㻵㻰 䝬䜾䝛䝖䝯䞊䝍䛾≉ᛶゎᯒ㻌 㻯㼔㼍㼞㼍㼏㼠㼑㼞㼕㼟㼠㼕㼏㻌㼍㼚㼍㼘㼥㼟㼕㼟㻌㼛㼒㻌㼐㼕㼞㼑㼏㼠㼘㼥㻌㼏㼛㼡㼜㼘㼑㼐㻌㻴㼀㻿㻌㼐㼏㻙㻿㻽㼁㻵㻰㻌㼙㼍㼓㼚㼑㼠㼛㼙㼑㼠㼑㼞㻌㼏㼛㼢㼑㼞㼑㼐㻌㼎㼥㻌 㼟㼡㼜㼑㼞㼏㼛㼚㼐㼡㼏㼠㼕㼚㼓㻌㼟㼔㼕㼑㼘㼐㻌 㻌 ᑎෆ㻌 ┤ஓ䠈㔝ཱྀ㻌 ⪽䠈༑ᔒ㻌 ୍㻌 㻔ᾏ㐨Ꮫ㻕㻌 TERAUCHI Naoya䠈NOGUCHI So䠈IGARASHI Hajime (Hokkaido University) E-mail: [email protected] 㻝䠊䛿䛨䜑䛻㻌 ⌧ᅾ䠈☢Ẽ䝅䞊䝹䝗䝹䞊䝮እ䛷䜒Ᏻᐃ䛧䛶ືస䛩䜛䠈䜘䜚㧗 䛔☢⏺⪏ᛶ䜢ᣢ䛳䛯 SQUID 䝉䞁䝃䛜ồ䜑䜙䜜䛶䛔䜛䚹䛭䜜䜢 ᐇ⌧䛩䜛୍䛴䛾ᡭἲ䛸䛧䛶䠈SQUID 䝬䜾䝛䝖䝯䞊䝍䛻㉸㟁ᑟ ⷧ⭷䝅䞊䝹䝗䜢ྲྀ䜚䛡䜛䛣䛸䛜ᥦ䛥䜜䛶䛔䜛[1]䚹㉸㟁ᑟⷧ ⭷䝅䞊䝹䝗䛿䠈䛭䛾䝬䜲䝇䝘䞊ຠᯝ䛻䜘䜚 SQUID 䝬䜾䝛䝖䝯䞊 䝍䜢☢Ẽ䝜䜲䝈䛛䜙ಖㆤ䛩䜛䛣䛸䛜䛷䛝䜛䚹ᐇ㝿䛻䠈㉸㟁ᑟⷧ ⭷䝅䞊䝹䝗䛾ຠᯝ䛿ᐇ㦂䛻䜘䛳䛶᳨ド䛥䜜䛶䛔䜛[1]䚹ᮏ◊✲ 䛷䛿䠈3 ḟඖ㎶᭷㝈せ⣲ἲ䜢⏝䛔䛶ゎᯒ䜢⾜䛔㉸㟁ᑟⷧ⭷ 䝅䞊䝹䝗䛾ຠᯝ䜢᳨ド䛩䜛䚹 㻞䠊ゎᯒᡭἲ㻌 㻞㻚㻝㻌 ᨭ㓄᪉⛬ᘧ㻌 ゎᯒᡭἲ䛸䛧䛶䠈3 ḟඖ㎶᭷㝈せ⣲ἲ䜢⏝䛔䜛䚹ᮏゎᯒ䛷 ゎ䛟䜉䛝ᨭ㓄᪉⛬ᘧ䛿(1)䠈(2)ᘧ䛷⾲䛥䜜䜛䚹 rot ȞrotA J 0 J sc (1) div J 0 J sc 0 (2) 㻟䠊ゎᯒ䝰䝕䝹㻌 ᮏ◊✲䛷䛿䠈㉸㟁ᑟⷧ⭷䝅䞊䝹䝗䛾ຠᯝ䜢☜ㄆ䛩䜛䛯䜑 䛻䠈」ᩘ䛾ゎᯒ䝰䝕䝹䜢⏝䛔䛶ゎᯒ䜢⾜䛖䚹Fig. 1 䛿㉸㟁ᑟ ⷧ⭷䝅䞊䝹䝗䜢ྲྀ䜚䛡䛯ሙྜ䛾ゎᯒ䝰䝕䝹䛾୍䛷䛒䜛䚹 䛣䜜䛻ຍ䛘䛶䠈㉸㟁ᑟⷧ⭷䝅䞊䝹䝗䛸 SQUID 䝬䜾䝛䝖䝯䞊䝍 䛸䛾㛫㝸䠈㉸㟁ᑟⷧ⭷䝅䞊䝹䝗䛾ᙧ≧䜢ኚ᭦䛧䛯䝰䝕䝹䛷䜒 ྠᵝ䛻ゎᯒ䜢⾜䛖䚹ゎᯒ䛻䛿䠈㉸㟁ᑟⷧ⭷䝅䞊䝹䝗䛾ຠᯝ 䜢᳨ド䛩䜛䛯䜑䛻䠈䝰䝕䝹య䛻☢Ẽ䝜䜲䝈䜢ᶍ䛧䛯ὶእ 㒊☢⏺䜢༳ຍ䛩䜛䚹 㻠䠊ゎᯒ⤖ᯝ㻌 ゎᯒ⤖ᯝ䛾ホ౯䜢 SQUID 䝸䞁䜾㒊䛾㙐☢᮰㔞䠈㟁ὶᐦ ᗘศᕸ䛛䜙⾜䛖䚹Fig. 2 䛻㉸㟁ᑟⷧ⭷䝅䞊䝹䝗䜢ྲྀ䜚䛡䛯䝰 䝕䝹䠈ྲྀ䜚䛡䛶䛔䛺䛔䝰䝕䝹䛷䛾㙐☢᮰㔞䛾㛫ኚ 䜢♧䛩䚹㉸㟁ᑟⷧ⭷䝅䞊䝹䝗䜢ྲྀ䜚䛡䛯䝰䝕䝹䛷䛿䠈ᖜ 䛜ᖜ䛻ῶᑡ䛧䛶䛚䜚䠈☢Ẽ䝜䜲䝈పῶຠᯝ䛜☜ㄆ䛷䛝䜛䚹 䛣䛣䛷䠈Q䛿☢Ẽᢠ⋡䠈A 䛿☢Ẽ䝧䜽䝖䝹䝫䝔䞁䝅䝱䝹䠈J0 䛿 SQUID 䝬䜾䝛䝖䝯䞊䝍䛾䝞䜲䜰䝇㟁ὶᐦᗘ䠈Jsc 䛿㉸㟁ᑟ㐽ⶸ 㟁ὶᐦᗘ䛷䛒䜛䚹㉸㟁ᑟ㐽ⶸ㟁ὶᐦᗘ䛿ḟ䛾䜘䛖䛻♧䛥䜜 䜛䚹 J sc ªı sc,x « « 0 « 0 ¬ >ısc @Esc 0 ı sc,y 0 0 º » 0 » Esc ı sc,z »¼ (3) wA gradij (4) wt 䛣䛣䛷䠈Vsc䠈x䠈Vsc䠈y䠈Vsc䠈z 䛿௬ᑟ㟁⋡[Vsc]䛾 x䚸y䚸z ᪉ྥᡂ ศ䛷䛒䜛䚹䜎䛯䠈Esc 䛿㉸㟁ᑟ㐽ⶸ㟁ὶ䜢Ⓨ⏕䛥䛫䜛㟁⏺䛷䛒 䜚䠈ij 䛿㟁Ẽ䝇䜹䝷䝫䝔䞁䝅䝱䝹䛷䛒䜛䚹䛺䛚䠈㛫ᚤศ㡯䛻 ᑐ䛧䛶䛿䠈ᚋ㏥ᕪศ䜢ྲྀ䜚䠈Step-by-Step ἲ䜢⏝䛔䛶ゎᯒ䜢⾜ 䛳䛶䛔䜛䚹 Esc Fig. 1 Overall view of analysis model (Shielding model) Magnetic flux penetrating SQUID ring[fWb] 㻞㻚㻞㻌 ௬㟁ᑟ㟁⋡㻌 ୍⯡䛻䠈㧗 ㉸㟁ᑟయ䛻䛿 E-J ≉ᛶ䛸䜀䜜䜛㠀⥺ᙧᛶ 䛜Ꮡᅾ䛩䜛䚹E-J ≉ᛶ䜢⾲⌧䛩䜛䛯䜑䛻䠈ḟᘧ䛷⾲䛥䜜䜛 n ್ 䝰䝕䝹䜢⏝䛔䜛䚹 n § J · (5) Ec ¨ ¸ ¨J ¸ © c¹ 䛣䛣䛷䠈Ec 䛿ᇶ‽㟁⏺䠈Jc 䛿⮫⏺㟁ὶᐦᗘ䠈n 䛿㠀⥺ᙧᛶ䛻 㛵ಀ䛩䜛䝟䝷䝯䞊䝍䛷 n ್䛸䜀䜜䜛䚹ᮏ◊✲䛷䛿䠈Ec = 1.0u10-3 V/m䠈Jc = 2.80u1010 A/m2䠈n = 10 䛸タᐃ䛧䛯䚹䛣䛾(5) ᘧ䜢ඖ䛻䠈௬ᑟ㟁⋡䜢ḟ䛾䜘䛖䛻ồ䜑䜛䚹 E ı sc,x ,ı sc,y ı sc,z Jc E § E ¨ ¨E © c 1 ·n ¸ ¸ ¹ constant 1.0 u 10 10 (6) 0.40 0.20 0.00 0.000 -0.20 0.002 0.004 0.006 0.008 0.010 -0.40 -0.60 Non shielding model Shielding model Fig. 2 Transition of the magnetic flux penetrating the SQUID ring (7) (6),(7)ᘧ䛻♧䛧䛯䜘䛖䛻 z ㍈᪉ྥ䛾௬ᑟ㟁⋡䜢 xy ᪉ྥ䛻ẚ 䜉䛶ᑠ䛥䛟タᐃ䛩䜛䛣䛸䛷䠈c ㍈␗᪉ᛶ䜢⾲⌧䛧䛶䛔䜛䚹䛣䛾䜘 䛖䛻タᐃ䛧䛯௬ᑟ㟁⋡䜢ᑟධ䛩䜛䛣䛸䛷䠈㉸㟁ᑟయ䛾 E-J ≉ᛶ䛚䜘䜃␗᪉ᛶ䜢⪃៖䛧䛯ゎᯒ䛜⾜䛖䛣䛸䛜䛷䛝䜛䚹 0.60 ཧ⪃ᩥ⊩㻌 1. Y Hatsukade, et al., Supercond. Sci. Technol. 22, (2009), 114010. ― 103 ― 第83回 2010年度秋季低温工学・超電導学会 1P-p07 計測・物性 ග䝣䜯䜲䝞ෆど㙾䜢⏝䛔䛯ᴟప ᶵჾෆ䛾どぬ䝰䝙䝍䝸䞁䜾᪉ἲ䛾㛤Ⓨ 㻰㼑㼢㼑㼘㼛㼜㼙㼑㼚㼠㻌㼛㼒㻌㼛㼜㼠㼕㼏㻌㼙㼛㼚㼕㼠㼛㼞㼕㼚㼓㻌㼙㼑㼠㼔㼛㼐㻌㼕㼚㼟㼕㼐㼑㻌㼏㼞㼥㼛㼓㼑㼚㼕㼏㻌㼑㼝㼡㼕㼜㼙㼑㼚㼠㻌 㻌 㼡㼟㼕㼚㼓㻌㼛㼜㼠㼕㼏㼍㼘㻌㼒㼕㼎㼑㼞㻌㼑㼚㼐㼛㼟㼏㼛㼜㼑㻌 ᒣ⏣ ⚽அ䚸ᑠ᪉ ṇᩥ䚸Ỉ㔝 ඞಇ䚸㛗ᔱ ㈼䠄㕲㐨⥲◊䠅䠗 ⏣୰ ⰾぶ䠄䠟䠧䠧䠅 㼅㻭㻹㻭㻰㻭㻌㻴㼕㼐㼑㼥㼡㼗㼕䠈㻻㻳㻭㼀㻭㻌㻹㼍㼟㼍㼒㼡㼙㼕㻘㻌㻹㻵㼆㼁㻺㻻㻌㻷㼍㼠㼟㼡㼠㼛㼟㼔㼕㻘㻌㻺㻭㻳㻭㻿㻴㻵㻹㻭 㻷㼑㼚 㻔㻾㼀㻾㻵㻕㻧㻌㼀㻭㻺㻭㻷㻭㻌㼅㼛㼟㼔㼕㼏㼔㼕㼗㼍 㻔㻯㻷㻷㻕 㻱㻙㼙㼍㼕㼘㻦㻌㼔㼕㼥㼍㼙㼍㼐㼍㻬㼞㼠㼞㼕㻚㼛㼞㻚㼖㼜㻌 㻝䠊䛿䛨䜑䛻 ㉸㟁ᑟ☢▼䛾䜘䛖䛺ᴟప ᶵჾ䛾ෆ㒊䛾≧ែ䜢どぬⓗ䛻 ほᐹ䛩䜛䛣䛸䛻䜘䜚䚸ෆ㒊䛾␗ᖖ䜢᪩ᮇ䛻Ⓨぢ䛧䛶䚸䛝䛺ᨾ 㞀䜢ᮍ↛䛻㜵䛠䛣䛸䛜ྍ⬟䛻䛺䜛䚹ෆ㒊ほᐹ䛾䛯䜑䛻䛿ෆど 㙾䛜᭷ຠ䛷䛒䜚䚸䛭䛾✀㢮䛸䛧䛶䛿䚸◳ᛶ㙾䚸㌾ᛶ㙾䚸䝡䝕䜸 䝇䝁䞊䝥➼䛜䛒䜛䚹㉸㟁ᑟ☢▼䛾ෆ㒊䛿」㞧䛷䛒䜚䚸䜎䛯䚸ᴟ ప 䜢ಖᣢ䛩䜛䛯䜑⇕ධ䜢ᴟຊῶ䜙䛩ᚲせ䜒䛒䜛䚹䛥䜙䛻䚸 㟁Ẽ⤯⦕ᛶ䛜㧗䛔᪉䛜Ⰻ䛔䛣䛸䛛䜙䚸㌾ᛶ㙾䜢㑅ᢥ䛧䛶᳨ウ 䛩䜛䛣䛸䛻䛧䛯䚹䛺䛚䚸་⒪⏝ග䝣䜯䜲䝞ෆど㙾➼䛷ෆ㒊䜢⮬ ⏤䛻ほᐹ䛷䛝䜛䜘䛖䛻㐲㝸᧯స䛜䛷䛝䜛ᵓ㐀䜢ഛ䛘䛯䜒䛾䛜 䛒䜛䛜䚸⇕ධ䜢ᑡ䛺䛟䛩䜛䚸㟁Ẽ⤯⦕ᛶ䜢㧗䛟䛩䜛䚸ಙ㢗ᛶ 䜒㧗䛟䛩䜛䛺䛹䛾⌮⏤䛻䜘䜚䚸㐲㝸᧯స䛿⾜䜟䛪ほᐹ⟠ᡤ䛿 ᅛᐃ䛩䜛䛣䛸䛻䛧䛯䚹ᅇ䚸እ㒊䛛䜙ᴟప ᶵჾෆ䛻ග䝣䜯䜲 䝞ඛ➃㒊䜢Ẽᐦ䛜䛸䜜䜛ᰦ䜢㏻䛧䛶タ⨨䛧䚸ᴟప ᐜჾෆ䛾 ┿✵Ẽཬ䜃෭༷䜢⾜䛔䚸ほᐹᑐ㇟䜢 㻞㻜㻷 ⛬ᗘ䜎䛷෭༷䛧 䛶䜒ෆ㒊ほᐹ䛜䛷䛝䜛䛣䛸䜢☜ㄆ䛧䛯䚹 㻞䠊༢య☜ㄆヨ㦂䠄ணഛヨ㦂䠅 ග䝣䜯䜲䝞ෆど㙾䛜ᴟప 䛷⏝ྍ⬟䛛䛹䛖䛛䛻䛴䛔䛶䚸 䜎䛪䛿༢యヨ㦂䜢ᐇ䛧䛯䚹ග䝣䜯䜲䝞ෆど㙾䛾䛖䛱㌾ᛶ㙾 䛻䛴䛔䛶䚸㻾㻞㻜㻜㼙㼙 䛾᭤䛢䜢ຍ䛘䛶ᾮయ❅⣲ᾐₕ䛻䜘䜚⣙ 㻣㻣㻷 䛻෭༷䛧䛯䛸䛣䜝䚸እほୖၥ㢟䛺䛔䛣䛸䜢☜ㄆ䛧䛯䚹ḟ䛻䚸 ᐊ 䛸ఏᑟ෭༷䛻䜘䜛⣙ 㻞㻜㻷 䜎䛷䛾䝠䞊䝖䝃䜲䜽䝹㻔⣙ 㻞㻜㻷 䜢 ⣙ 㻢㻜㼔 ಖᣢ䛧䛯ᚋ䚸ᐊ 䛸⣙ 㻞㻜㻷 䜢 㻟 ᅇ⧞䜚㏉䛧䛯㻕䜢⾜䛳䛯 ᚋ䚸ᐊ 䛷䛾どㄆᛶ䛻ၥ㢟䛾䛺䛔䛣䛸䜢☜ㄆ䛧䛯䚹 䜎䛯䚸ཧ⪃䛸䛧䛶䚸◳ᛶ㙾䜢㧗 ㉸㟁ᑟ⥺ᮦホ౯⨨䛾ୖ 㒊䛛䜙䝅䝸䝁䞊䞁䝂䝮〇䛾ヨ㦂⟶ᰦ䛻䜘䜚Ẽᐦ䝅䞊䝹䛧䛶ᤄ ධ䛧䚸ෆᅽ 㻞㽢㻝㻜㻙㻟㻼㼍 䜎䛷┿✵Ẽ䛧䛯ᚋ䚸ఏᑟ෭༷䜢⾜䛔䚸 ㍽ᑕ䝅䞊䝹䝗 㻠㻟㻷䚸◳ᛶ㙾ඛ➃ 㻝㻜㻣㻷 䜎䛷෭༷䛧䛯䛸䛣䜝䚸ど ㄆᛶ䛻ၥ㢟䛾䛺䛔䛣䛸䜢☜ㄆ䛧䛯䚹䛺䛚䚸ෆ㒊䜈䛾↷᫂⏝䛸䛧 䛶䚸㻸㻱㻰 ග䜢ᑟධ䛩䜛䛯䜑䛾ග䝣䜯䜲䝞㻔䝷䜲䝖䜺䜲䝗䝣䜯䜲䝞㻕 䜒◳ᛶ㙾䛸ඹ䛻ᤄධ䛧䛯䚹 㻟䠊⨨⤌㎸☜ㄆヨ㦂 ཧ⪃䛻ᐇ䛧䛯◳ᛶ㙾䛸ྠᵝ䛻䚸㻲㼕㼓㻚㻝 䛻♧䛩䜲䝯䞊䝆䜺䜲 䝗䝣䜯䜲䝞ཬ䜃䝷䜲䝖䜺䜲䝗䝣䜯䜲䝞䜢㧗 ㉸㟁ᑟ⥺ᮦホ౯ ⨨䛾ୖ㒊䛛䜙䝅䝸䝁䞊䞁䝂䝮〇䛾ヨ㦂⟶ᰦ䜢⏝䛧䚸䛥䜙䛻䜶 䝫䜻䝅ᶞ⬡䛷ᅛ䜑䛶䝅䞊䝹䛧䛶ᤄධ䛧䚸㉸㟁ᑟ⥺ᮦ䜢䝝䞁䝎 䛡䛧䛯䝇䝔䞊䝆䛜ぢ䛘䜛䜘䛖䛻䝉䝑䝖㻔㻲㼕㼓㻚㻞㻕䛧䛶䚸෭༷䛧䛯≧ ែ䛷䛾どㄆᛶ䛾☜ㄆ䜢⾜䛳䛯䚹 ෆᅽ⣙ 㻝㻜㻙㻠㻼㼍 䜎䛷┿✵Ẽ䛧䛯ᚋ䚸ఏᑟ෭༷䜢⾜䛔䚸⣙ 㻞㻜㻷 䜒䛧䛟䛿⣙ 㻣㻣㻷 䜎䛷⥺ᮦ䜢෭༷䛧䛯䚹䛺䛚䚸ග䝣䜯䜲䝞ෆ ど㙾ඛ➃䛾 ᗘ䛿⣙ 㻝㻢㻜㻷 䛷䛒䛳䛯䚹 䛣䛾෭༷䛧䛯≧ែ䛷䚸㉸㟁ᑟ⥺ᮦ䜢䝝䞁䝎䛡䛧䛯䝇䝔䞊 䝆䛜ᅇ㌿䛩䜛≧ἣཬ䜃⮫⏺㟁ὶ௨ୖ䛾㟁ὶ䜢ὶ䛧䛯ሙྜ䛾 ㉸㟁ᑟ⥺ᮦ䛾↝ᦆ䛩䜛≧ἣ䜢ほᐹ䛩䜛䛣䛸䛜䛷䛝䛯䚹 䜘䛳䛶䚸ᴟప ᶵჾෆ䛾┿✵Ẽཬ䜃෭༷䛜䛷䛝䜛䛣䛸䚸 ཬ䜃䚸ᴟప 䜎䛷෭༷䛧䛯≧ែ䛷䜒どㄆᛶ䛻ၥ㢟䛾䛺䛔䛣䛸 䛜☜ㄆ䛷䛝䛯䚹 㻠䠊⪃ᐹ䡡䜎䛸䜑 ㌾ᛶ㙾䛷䛒䜛ග䝣䜯䜲䝞ෆど㙾䜢䚸እ㒊䛛䜙ᴟప ᶵჾෆ 䜈ᤄධ䛩䜛⟠ᡤ䛻䛴䛔䛶䚸䝅䝸䝁䞊䞁䝂䝮〇䛾ヨ㦂⟶ᰦ䜢 ⏝ 䛧 䛶 䜶 䝫 䜻 䝅 ᶞ ⬡ 䛷 ᅛ 䜑䛶䝅 䞊 䝹 䛩 䜛䛣 䛸 䛷 䚸 ෆ ᅽ ⣙ 㻝㻜㻙㻠㻼㼍 䜎䛷┿✵Ẽ䛷䛝䚸䛥䜙䛻䚸ఏᑟ෭༷䛻䜘䜚⣙ 㻞㻜㻷 䜎䛷 ⥺ᮦ䜢෭༷䛷䛝䜛䛣䛸䛜䜟䛛䛳䛯䚹䜎䛯䚸ග䝣䜯䜲䝞ෆど㙾䜢 ⣙ 㻝㻢㻜㻷 䜎䛷෭༷䛧䛶䜒どㄆᛶ䛻ၥ㢟䛾䛺䛔䛣䛸䛜䜟䛛䛳䛯䚹 ᙜ᪥䛻䚸☜ㄆ䛧䛯⏬ീ䜢⤂䛩䜛䚹 ᚋ䛿䚸᭦䛺䜛どㄆᛶ䛾ྥୖ䛾䛯䜑䛻䚸ග䝣䜯䜲䝞ෆど㙾 㻔㌾ᛶ㙾㻕䛾⏬⣲ᩘቑ䛻䛴䛔䛶᳨ウ䜢⾜䛔䚸☜ㄆヨ㦂䜢⾜䛖䚹 䜎䛯䚸䛣䜜䜎䛷 㻢䡚㻣 ᅇᐊ 䛸⣙ 㻞㻜㻷 䛾㛫䛾䝠䞊䝖䝃䜲䜽䝹䜢⧞ 䜚㏉䛧䛶䜒ၥ㢟䛺䛛䛳䛯䛜䚸䛥䜙䛻䚸䝠䞊䝖䝃䜲䜽䝹䜢⧞䜚㏉䛧䛶 ⪏ஂᛶ䜢☜ㄆ䛩䜛䚹 ᴟప ᑐᛂෆど㙾䜢᳨ウ䛩䜛䛻䛒䛯䜚䚸䛤༠ຊ䛔䛯䛰䛔䛯 䞞⏫⏣〇సᡤཬ䜃䞟䜰䜲䝕䝑䜽⏬䛻ឤㅰ䛩䜛䚹 ᮏ◊✲䛾୍㒊䛿ᅜᅵ㏻┬䛾⿵ຓ㔠䜢ཷ䛡䛶ᐇ䛧䛯䚹 䜲䝯䞊䝆䜺䜲䝗䝣䜯䜲䝞 (㌾ᛶ㙾) (⏬⣲ᩘ䠖7,400) CCD䜹䝯䝷ཬ䜃 䜰䝎䝥䝍䝺䞁䝈 䝷䜲䝖䜺䜲䝗䝣䜯䜲䝞 ග※(LED) 㻲㼕㼓㻚㻝㻌㻵㼙㼍㼓㼑㻌㻳㼡㼕㼐㼑㻌㻲㼕㼎㼑㼞㻌㼍㼚㼐㻌㻸㼕㼓㼔㼠㻌㻳㼡㼕㼐㼑㻌㻲㼕㼎㼑㼞㻌 䝅䞊䝹㒊ศ ㉸㟁ᑟ⥺ᮦ䜢䝝䞁䝎 䛡䛧䛯䝇䝔䞊䝆 ග䝣䜯䜲䝞ෆど㙾ඛ➃ 㻲㼕㼓㻚㻞㻌㻿㼏㼔㼑㼙㼍㼠㼕㼏㻌㻵㼘㼘㼡㼟㼠㼞㼍㼠㼕㼛㼚㻌㼛㼒㻌㻱㼤㼜㼑㼞㼕㼙㼑㼚㼠㼍㼘㻌㻱㼝㼡㼕㼜㼙㼑㼚㼠㻌 ཧ⪃ᩥ⊩ 㻝㻚 ୰ᮧ ๛䠖䛂⛉Ꮫᶵჾධ㛛᪂䝅䝸䞊䝈 㻟㻡㻌 ᕤᴗ⏝ෆど㙾䛃 ⛉Ꮫᶵჾ㻔ᮾி⛉Ꮫᶵჾ༠㻕㻘㻌㻺㼛㻚㻌㻣㻞㻠㻘㻌㻼㻚㻟㻜㻌㻔㻞㻜㻜㻤㻚㻝㻜㻕 㻞㻚㻌 㮖ሯಙᙪ䠖䛂ෆど㙾䛾Ṕྐ䛸ෆど㙾ᢏ⾡䛾㐍䛃 ⧄⥔䛸ᕤᴗ㻔⧄⥔Ꮫㄅ㻕㻘㻌㼂㼛㼘㻚㻢㻠㻘㻌㻺㼛㻚㻤㻘㻌㻼㻚㻞㻡㻤㻌㻔㻞㻜㻜㻤㻚㻤㻕 㻟㻚㻌 ᑠ᪉ṇᩥ䜙䠖䛂㧗 ㉸㟁ᑟ⥺ᮦホ౯ヨ㦂⨨䛾㛤Ⓨ䛃 㻞㻜㻜㻤 ᖺᗘᏘప ᕤᏛ䞉㉸㟁ᑟᏛ㻘 㻝㻼㻙㼜㻞㻤 ― 104 ― 第83回 2010年度秋季低温工学・超電導学会 1P-p08 冷凍機 㻠䠧㻳㻙㻹 ෭ᶵ䛾☢ᛶయ෭ᮦศ㔞䛾ᙳ㡪㻌 㻵㼚㼒㼘㼡㼑㼚㼏㼑㻌㼛㼒㻌㼠㼔㼑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㼝㼡㼍㼚㼠㼕㼠㼥㻌㼛㼒㻌㼍㻌㻠㻷㻌㻳㻙㻹㻌㼏㼞㼥㼛㼏㼛㼛㼘㼑㼞㻌 㻌 ⏣ᮧ㻌 ᪸䠈⚟⏣㻌 ♸䠈ቑᒣ㻌 ᪂㻔ᓥၟ⯪㧗ᑓ㻕䠗⃝㻌 ๎㻔㻺㻵㻹㻿㻕㻌 㼀㻭㻹㼁㻾㻭㻌㻷㼛㼠㼍㻘㻌㻲㼁㻷㼁㻰㻭㻌㼅㼡㼟㼡㼗㼑㻘㻌㻹㻭㻿㼁㼅㻭㻹㻭㻌㻿㼔㼕㼚㼖㼕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㻧㻺㼁㻹㻭㼆㻭㼃㻭㻌㼀㼍㼗㼑㼚㼛㼞㼕㻔㻺㻵㻹㻿㻕㻌 㻱㻙㼙㼍㼕㼘䠖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 䠍䠊䛿䛨䜑䛻㻌 ཧ⪃ᩥ⊩㻌 ᑠᆺ෭ᶵ䛷䛿෭༷ᛶ⬟ྥୖ䛻ᕥྑ䛥䜜䜛せ⣲䛸䛧䛶 㻝㻚㻌 㻿㻚㻌 㻹㼍㼟㼡㼥㼍㼙㼍㻘㻌 㼅㻚㻌 㻲㼡㼗㼡㼐㼍㻘㻌 㼀㻚㻌 㻵㼙㼍㼦㼡㻘㻌 㼀㻚㻌 㻺㼡㼙㼍㼦㼍㼣㼍㻦㻌 ෭ᮦ䛜ᣲ䛢䜙䜜䠈≉䛻䛭䛾ẚ⇕䛜ษ䛷䛒䜛䚹㻴㼛㻯㼡㻞 䜔 㻱㼞㻟㻺㼕 㻯㼞㼥㼛㼓㼑㼚㼕㼏㼟㻌㼠㼛㻌㼎㼑㻌㼜㼡㼎㼘㼕㼟㼔㼑㼐㻚㻌 㻞㻚㻌 㼀㻚㻌 㻵㼙㼍㼦㼡㻘㻌 㼅㻚㻌 㻲㼡㼗㼡㼐㼍㻘㻌 㻿㻚㻌 㻹㼍㼟㼡㼥㼍㼙㼍㻘㻌 㼀㻚㻌 㻺㼡㼙㼍㼦㼍㼣㼍㻦㻌 䛺䛹䛾☢ᛶయ෭䛾㛤Ⓨ䛻䜘䜚䠈㻞 ẁᑠᆺ෭ᶵ䛷 㻠㻷 䝺䝧䝹 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䠈㼂㼛㼘㻚㻌㻤㻜㻌㻔㻞㻜㻜㻥䠅㻌 㼜㻚㻣㻥㻌 䛾෭༷䛜ྍ⬟䛸䛺䛳䛶䛔䜛䜒䛾䛾䠈䛭䛾ຠ⋡䛿䜘䛔䛸䛿ゝ䛘䛺 㻟㻚㻌 㼅㻚㻌 㻲㼡㼗㼡㼐㼍㻘㻌 㼀㻚㻌 㻵㼙㼍㼦㼡㻘㻌 㻿㻚㻌 㻹㼍㼟㼡㼥㼍㼙㼍㻘㻌 㼀㻚㻌 㻺㼡㼙㼍㼦㼍㼣㼍㻦㻌 䛔≧ែ䛷䛒䜛䚹䛭䛣䛷ḟୡ௦䛾෭ᮦ䛸䛧䛶 㻳㼐㻞㻻㻞㻿㻌 㻔㻳㻻㻿㻕䛺 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䠈㼂㼛㼘㻚㻌㻤㻝㻌㻔㻞㻜㻜㻥㻕㻌㼜㻚㻣㻠㻌 䛹䛾䝉䝷䝭䝑䜽䝇෭ᮦ䜒ᮇᚅ䛥䜜䛶䛔䜛䚹㻌 㻌 ᮏ◊✲䛷䛿䠈㻠㻚㻞㻷 䛷䛾෭⬟ຊྥୖ䛾䛯䜑䛻䠈䛣䜜䜎䛷 㻞 㻌 ẁ┠෭ᮦ䛻 㻼㼎䠈㻴㼛㻯㼡㻞䠈㻳㻻㻿 䜢ሸ䛥䛫䠈㻼㼎 䜢㧗 ➃䛛䜙 㻠㻜㻑䛾య✚ẚ୍ᐃ䛷෭ᛶ⬟ホ౯䜢⾜䛳䛶䛝䛯㼇㻝㻙㻟㼉䚹ᅇ䛿 㻴㼛㻯㼡㻞 㻼㼎 㻳㻻㻿 㻼㼎 䛾య✚ẚ䜢ኚ䛘䠈෭⬟ຊホ౯䜢⾜䛔䠈䛭䛾ᙳ㡪䜢ᐇ㦂 ⓗ䛻ㄪᰝ䛧䛯⤖ᯝ䜢ሗ࿌䛩䜛䚹㻌 㻌 㻴㼛㼠㻌㼑㼚㼐 㻯㼛㼘㼐㻌㼑㼚㼐 䠎䠊ᐇ㦂⨨㻌 ᮏ◊✲䛷⏝䛧䛯 㻠㻷㻳㻙㻹 ෭ᶵ䛿 㻿㻴㻵 〇䛷 㻜㻚㻝㼃㻬㻠㻚㻞㻷 䛾ᵝ䛸䛺䛳䛶䛔䜛䚹ᮏ෭ᶵ䛾≉ᚩ䛿䠈ᾘ㈝㟁ຊ 㻜 㻝㻜㻜䡉䡉 㻝㻚㻟㼗㼃㻬㻢㻜㻴㼦 䛾✵෭䝁䞁䝥䝺䝑䝃䜢⏝䛧䛶䛔䜛䛯䜑䠈ᐇ㦂䞉 㻌 ィ 䛜ᡭ㍍䛻⾜䛘䜛䛣䛸䛷䛒䜛䚹෭ᶵ䛿䠈䛶䛾ᐇ㦂䛻䛚 㻲㼕㼓㻚㻝㻌㻭㻌㼟㼏㼔㼑㼙㼍㼠㼕㼏㻌㼛㼒㻌㼠㼔㼞㼑㼑㻙㼘㼍㼥㼑㼞㻌㼞㼑㼓㼑㼚㼑㼞㼍㼠㼛㼞㻌㼙㼍㼠㼑㼞㼕㼍㼘㼟㻌 䛔䛶ྠ䛨 㻝 ẁ┠෭ჾ䜢⏝䛧䠈➼䛧䛔ሸᅽຊ䛷 ᐃ䜢⾜ 㻌 䛳䛯䚹䝁䞊䝹䝗䝦䝑䝗䛿ୖྥ䛝䛻䛧䛶⏝䛧䛶䛔䜛䚹㻌 㻌 㻌 4.0 Pb:HoCu2=30:70 Pb:HoCu2=40:60 Pb:HoCu2:GOS=40:30:30 Pb:HoCu2:GOS=30:40:30 Cooling power [W] 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0.0 㻜㻌 㻡㻌 㻝㻜㻌 㻝㻡㻌 㻞㻜㻌 㻞㻡㻌 㻟㻜㻌 2nd stage temperature [K] 㻌 㻲㼕㼓㻚㻞㻌 㻯㼛㼛㼘㼕㼚㼓㻌 㼜㼛㼣㼑㼞㻌 㼛㼒㻌 㼠㼔㼑㻌 㻞㼚㼐㻌 㼟㼠㼍㼓㼑㻌 㼍㼘㼠㼑㼞㼕㼚㼓㻌 㼞㼑㼓㼑㼚㼑㼞㼍㼠㼛㼞㻌 㼙㼍㼠㼑㼞㼕㼍㼘㼟㻌 㻌 㻌 0.25 Cooling power at 4.2K [W] 䠏䠊ᐇ㦂᪉ἲ㻌 㻲㼕㼓㻚㻝 䛻 㻞 ẁ┠෭ᮦ䛾ᴫ␎ᅗ䜢♧䛩䚹㛗䛥 㻝㻜㻜 䟚䠈ෆᚄ 㻝㻡 䟚䛾⟄✵㛫ෆ䛻෭ᮦ䜢ሸ䛥䛫䜛䚹ᅇ䛿䠈㧗 ➃ 䛛䜙 㻼㼎 ⌫㻔┤ᚄ 㻜㻚㻞㼙㼙㻕䠈㻴㼛㻯㼡㻞 ⌫㻔┤ᚄ 㻜㻚㻞㼙㼙㻕㻌㻳㻻㻿 ⌫㻔┤ᚄ 㻜㻚㻞㻡㼙㼙㻕䛾㡰␒䛻ሸ䛧䠈䛭䜜䜙䛾ྜ䜢ኚ䛥䛫䛺䛜䜙ᛶ ⬟ヨ㦂䜢⾜䛳䛯䚹䛺䛚䠈␗✀䛾෭ᮦ䜢ศ㞳䛥䛫䜛䛯䜑䛻䚸䝣 䜵䝹䝖䛸䝯䝑䝅䝳䜢⏝䛧䛶䛔䜛䚹㻌 㻌 䠐䠊ᐇ㦂⤖ᯝ㻌 㻲㼕㼓㻚㻞 䛿ྛ෭ᮦ䛷䛾 㻞 ẁ┠䝇䝔䞊䝆䛾෭⬟ຊ䜢♧䛩䚹 ᛶ⬟ホ౯䜢⾜䛳䛯䛩䜉䛶䛾෭ᮦ䛾⤌䜏ྜ䜟䛫䛻䛚䛔䛶䚸 ฿㐩 ᗘ䛿䜋䜌➼䛧䛔್䛸䛧䛶⣙ 㻟㻚㻝㻷 䛜ᚓ䜙䜜䛯䚹㻌 㻞 ẁ┠䝇䝔䞊䝆䛻ྲྀ䜚䛡䜙䜜䛯㟁Ẽ䝠䞊䝍䛷෭⬟ຊ䜢 ᐃ䛩䜛䛸䠈෭⬟ຊ䛿 㻼㼎㻦㻴㼛㻯㼡㻞㻩㻟㻜㻦㻣㻜 䛸 㻼㼎㻦㻴㼛㻯㼡㻞㻩㻠㻜㻦㻢㻜 䛻䜋䛸䜣䛹ᕪ䛜↓䛔䛣䛸䛜䜟䛛䜛䚹䜎䛯䠈ప ഃ䛻 㻳㻻㻿 䜢ሸ 䛧䛶䛔䜛≧ែ䛷䛿䠈 ᗘ䛜 㻣㻷 ௨ୖ䛻䛺䜛䛸෭⬟ຊ䛜ᑠ䛥䛟 䛺䛳䛯䚹㻌 㻲㼕㼓㻚㻟 䛿䠈㻠㻚㻞㻷 䛻䛚䛡䜛෭⬟ຊ䛾ᐇ㦂⤖ᯝ䜢♧䛩䚹 㻼㼎㻦㻴㼛㻯㼡㻞 䛷䛿䠈㻼㼎 䛾ྜ䛜 㻡㻜㻑䜢㉸䛘䜛䛸෭⬟ຊ䛜పୗ䛧 䛶䛔䜛䚹䛧䛯䛜䛳䛶䚸㻼㼎 䛾ྜ䛿䠈㧗 ➃䛛䜙 㻠㻜㻑䜎䛷䛜ຠᯝ ⓗ䛷䛒䜛䛸⪃䛘䜙䜜䜛䚹䜎䛯䠈㻳㻻㻿 䜢ຍ䛘䜛䛣䛸䛻䜘䜚䠈෭⬟ ຊ䛜ྥୖ䛧䠈㻼㼎㻦㻴㼛㻯㼡㻞㻦㻳㻻㻿㻩㻠㻜㻦㻟㻜㻦㻟㻜 䛾䛻᭱䜒䜘䛔෭⬟ ຊ䜢♧䛧䠈䛭䛾್䛿 㻜㻚㻞㻠㼃 䛜ᚓ䜙䜜䛯䚹㻌 㻌 䠑䠊䜎䛸䜑㻌 㻞 ẁ┠෭ᮦ䛻 㻼㼎䠈㻴㼛㻯㼡㻞䠈㻳㻻㻿 䜢ሸ䛥䛫䠈㻼㼎 䛾య✚ẚ 䜢ኚ䛘䛶෭⬟ຊホ౯䜢⾜䛳䛯⤖ᯝ䠈㻼㼎 䛾ྜ䛜 㻡㻜㻑䜢㉸䛘 䜛䛸෭⬟ຊ䛜పୗ䛩䜛䛣䛸䛜᫂䜙䛛䛻䛺䛳䛯䚹㻌 䜎䛯䠈㻼㼎 䜢㧗 ➃䛛䜙 㻠㻜㻑䛾≧ែ䛷 㻳㻻㻿 䜢ሸ䛩䜛䛣䛸䛻 䜘䜚䠈㻠㻚㻞㻷 䛻䛚䛡䜛෭⬟ຊ䛿 㻼㼎㻦㻴㼛㻯㼡㻞㻦㻳㻻㻿㻩㻠㻜㻦㻟㻜㻦㻟㻜 䛾 䛻᭱䜒䜘䛔෭⬟ຊ䜢♧䛧䠈䛭䛾್䛿 㻜㻚㻞㻠㼃 䛜ᚓ䜙䜜䛯䚹㻌 ᚋ䛿䚸෭ᮦ䛾ศ㞳䛻⏝䛧䛶䛔䜛䝣䜵䝹䝖䛸䝯䝑䝅䝳䛾 ᙳ㡪䜢ㄪᰝ䛩䜛䛴䜒䜚䛷䛒䜛䚹㻌 ― 105 ― Pb:HoCu2 Pb:HoCu2:GOS=40:30:30 0.20 Pb:HoCu2:GOS=30:40:30 0.15 0.10 0.05 0.00 㻜 㻞㻜 㻠㻜 㻢㻜 㻤㻜 㻝㻜㻜 Volume rate of Pb from the hot end [%] 㻌 㻲㼕㼓㻚㻟㻌㻯㼛㼛㼘㼕㼚㼓㻌㼜㼛㼣㼑㼞㻌㼍㼠㻌㻠㻚㻞㻷㻌 第83回 2010年度秋季低温工学・超電導学会 1P-p09 冷凍機 ☢ᛶ෭ᮦ 㻴㼛㻯㼡 䜢⏝䛔䛯 㻳㻹 ෭ᶵ䛾㧗ᛶ⬟㻌 㻵㼙㼜㼞㼛㼢㼑㼙㼑㼚㼠㻌㼛㼒㻌㻳㻹㻌㼏㼞㼥㼛㼏㼛㼛㼘㼑㼞㻌㼜㼑㼞㼒㼛㼞㼙㼍㼚㼏㼑㻌㼎㼥㻌㼡㼟㼕㼚㼓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㼛㼒㻌㻴㼛㻯㼡㻌 㻌 ᮡᮏ㻌 ሕ㻘㻌 ᒸᮧ㻌 ဴ⮳䠄ᮾᕤ䠅㻧㻌 㻿㼁㻳㻵㻹㻻㼀㻻㻌㻳㼥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 㻱㻙㼙㼍㼕㼘㻦㻌㼟㼡㼓㼕㼙㼛㼠㼛㻚㼓㻚㼍㼍㻬㼙㻚㼠㼕㼠㼑㼏㼔㻚㼍㼏㻚㼖㼜㻌 3 1.5 1 0.5 0 0 Pb HoCu HoCu 2 10 20 30 40 Temperature(K) 㻲㼕㼓㻚㻝㻌㻿㼜㼑㼏㼕㼒㼕㼏㻌㼔㼑㼍㼠㻌㼛㼒㻌㼞㼑㼓㼑㼚㼑㼞㼍㼠㼛㼞㻌㼙㼍㼠㼑㼞㼕㼍㼘㼟㻌 Cold End Hot End HoCu2 0 HoCu or Pb 1 0.25 㻲㼕㼓㻚㻞㻌㻭㻌㼟㼏㼔㼑㼙㼍㼠㼕㼏㻌㼛㼒㻌㼠㼣㼛㻙㼘㼍㼥㼑㼞㻌㼞㼑㼓㼑㼚㼑㼞㼍㼠㼛㼞㻌㼙㼍㼠㼑㼞㼕㼍㼘㼟㻌 2nd Stage Temperature(K) 32 28 (1st Heater, 2nd Heater) (15,14) (0,14) 24 (30,14) 20 16 12 (30,7) (15,7) (0,7) 8 4 (0,0) 0 10 20 (15,0) 30 40 50 HoCu(100%) Pb(100%) HoCu2(25%)+HoCu(75%) HoCu2(25%)+Pb(75%) (30,0) 60 70 80 90 100 1st Stage Temperature(K) 㻲㼕㼓㻚㻟㻌㻼㼑㼞㼒㼛㼞㼙㼍㼚㼏㼑㻌㼑㼤㼍㼙㼕㼚㼍㼠㼕㼛㼚㻌 2nd Stage Cooling Capacity(W) 㻝䠊䛿䛨䜑䛻㻌 ㏆ᖺ䚸㖄䛿ேయ䜔⎔ቃ䜈ẘᛶ䛜䛒䜛䛣䛸䛛䜙⏝䛜ᢚไ 䛥䜜䛶䛚䜚䚸㻳㻹 ෭ᶵ䛾෭ᮦ䛻䜒㖄䛾௦᭰ᮦᩱ䛜᳨ウ䛥 䜜䛶䛔䜛䚹䛭䛣䛷ᮏ◊✲䛷䛿☢ᛶ෭ᮦ 㻴㼛㻯㼡 䛻ὀ┠䛧䛯䚹 㻳㻹 ෭ᶵ䛾ᛶ⬟䛿෭ᮦ䛾ẚ⇕䛻䛝䛟౫Ꮡ䛩䜛䛜䚸㖄䛿 㻝㻜㻷 ௨ୗ䛻䛚䛔䛶ẚ⇕䛜ᴟ➃䛻పୗ䛩䜛䛯䜑 㻱㼞㻟㻺㼕 䜔 㻴㼛㻯㼡㻞 䛺䛹䛾☢ᛶ෭ᮦ䛸⤌䜏ྜ䜟䛫䛶⏝䛔䜙䜜䛶䛝䛯䚹㻲㼕㼓㻚㻝 䜘䜚 㻴㼛㻯㼡 䛿 㻝㻜㻷 ௨ୖ䛾 ᗘ⠊ᅖ䛻䛚䛔䛶㖄䜘䜚㧗䛔ẚ⇕䜢᭷䛩 䜛䛯䜑௦᭰ᮦᩱ䛸䛧䛶ᮇᚅ䛷䛝䜛ୖ䚸෭⬟ຊ䛾ྥୖ䜒ぢ㎸ 䜑䜛䚹ᮏᐇ㦂䛷䛿 㻴㼛㻯㼡 ཬ䜃㖄䜢⏝䛔䛯ሙྜ䛾ᛶ⬟ẚ㍑䜢䚸 ༢ᒙ෭ჾཬ䜃ప ഃ䛻 㻴㼛㻯㼡㻞 䜢⤌䜏ྜ䜟䛫䛯 㻞 ᒙ෭ჾ 䛻䛴䛔䛶䚸㻝 ẁ䝇䝔䞊䝆䛸 㻞 ẁ䝇䝔䞊䝆䛻䛭䜜䛮䜜䝠䞊䝍䞊䛷 ⇕㈇Ⲵ䜢䛛䛡䛯䛾ྛ䚻䛾䝇䝔䞊䝆 ᗘ䜢 ᐃ䛩䜛䛣䛸䛷⾜ 䛳䛯䚹㻌 㻌 㻞䠊ᐇ㦂᪉ἲ㻌 ᐇ㦂䛷䛿䝅䝸䞁䝎ෆᚄ䛜䠍ẁ 㻣㻜㼙㼙䚸㻞 ẁ 㻟㻞㼙㼙 䛾 㻞 ẁ䝁䞊 䝹䝗䝦䝑䝗䜢⏝䛔䚸ᅽ⦰ᶵ䛿 㻡㼗㼃 ධຊ䛾䜒䛾䜢⏝䛧䚸䝇䝖䝻 䞊䜽䛿 㻞㻜㼙㼙 䛷㐠㌿䛧䛯䚹䜎䛯䛶䛾ᐇ㦂䛷ྠ䛨䠍ẁ෭ჾ䜢 ⏝䛔䚸㐠㌿࿘Ἴᩘ䛿 㻝㻚㻞㻟㻴㼦䚸ᅽຊ䛿㧗ᅽ 㻞㻚㻜㻹㻼㼍䚸పᅽ 㻜㻚㻤㻹㻼㼍 䛸䛧䛯䚹㻞 ẁ෭ᮦ䛾⌫ᚄ䛿 㻴㼛㻯㼡 䛸 㻼㼎 䛜 㻜㻚㻝㻡㼙㼙䡚 㻜㻚㻞㻡㼙㼙䚸㻴㼛㻯㼡㻞 䛜 㻜㻚㻞㻝㼙㼙䡚㻜㻚㻞㻡㼙㼙 䛾䜒䛾䜢⏝䛔䛯䚹㻌 㻲㼕㼓㻚㻞 䛻 㻞 ᒙ෭ჾ䛾ᴫ␎ᅗ䜢♧䛩䚹෭ჾ䛿㛗䛥 㻝㻡㻣㼙㼙䚸ෆᚄ 㻞㻤㼙㼙 䛷ప ഃ䛻 㻴㼛㻯㼡㻞 䜢య✚ẚ 㻞㻡㻑䚸㧗 ഃ 䛻 㻴㼛㻯㼡 䜒䛧䛟䛿 㻼㼎 䜢 㻣㻡㻑ሸ䛧䛶ᐇ㦂䜢⾜䛳䛯䚹㻌 㻌 㻟䠊ᐇ㦂⤖ᯝ㻌 㻲㼕㼓㻚㻟 䛻༢ᒙ෭ჾ 㻴㼛㻯㼡㻔㻝㻜㻜㻑㻕䚸㖄㻔㻝㻜㻜㻑㻕ཬ䜃ప ഃ䛻 㻴㼛㻯㼡㻞㻔㻞㻡㻑㻕䜢ሸ䛧䛯 㻞 ᒙ෭ჾ䛾ᛶ⬟ヨ㦂䛾 ᐃ⤖ᯝ䜢 ♧䛩䚹䜎䛪 㻴㼛㻯㼡 䛸㖄䛾༢ᒙ෭ჾ䛾⤖ᯝ䛷䛿䛶䛾䠕Ⅼ䛻 䛚䛔䛶 㻴㼛㻯㼡 䛾᪉䛜䠎ẁ䝇䝔䞊䝆 ᗘ䛿ప䛟䛺䜚 㻳㻹 ෭ᶵ 䛾෭ ᛶ ⬟ 䛜 ྥୖ䛧䛶䛔䜛 䛣䛸䛜䜟䛛 䜛䚹 ḟ䛻ప ഃ䛻 㻴㼛㻯㼡㻞 䜢 㻞㻡㻑ሸ䛧䛯 㻞 ᒙ෭ჾ䛾ሙྜ䛿༢ᒙ෭ჾ䛸ẚ䜉 㻞 ẁ䝠䞊䝍䞊䛜 㻜㼃 ཬ䜃 㻣㼃 䛾 㻢 Ⅼ䛷෭ ᗘ䛜ప䛟䛺䛳䛶 䛚䜚䚸⣙ 㻝㻟㻷 ௨ୗ䛾 ᗘ㡿ᇦ䛷䛿ᛶ⬟䛜ྥୖ䛧䛶䛔䜛䛣䛸䛜 䜟䛛䜛䚹㻞 ẁ䛾᭱ప฿㐩 ᗘ䛻䛚䛔䛶䛿 㻴㼛㻯㼡䠇㻴㼛㻯㼡㻞 䛾ሙ ྜ䛿 㻴㼛㻯㼡㻔㻝㻜㻜㻑㻕䛸ẚ䜉䛶 㻠㻚㻞㻞㻷 䛛䜙 㻞㻚㻠㻤㻷 䛻ᨵၿ䛥䜜䛯䚹䛧 䛛䛧 㻞 ẁ䝠䞊䝍䞊䛜 㻝㻠㼃 䛾 㻟 Ⅼ䛷䛿㏫䛻෭ ᗘ䛜ୖ䛜䛳 䛶䛔䜛䚹䛣䛾⤖ᯝ䛻䛴䛔䛶 㻲㼕㼓㻚㻠 䛷⪃ᐹ䛩䜛䚹㻲㼕㼓㻚㻠 䛿 㻝 ẁ䝇 䝔䞊䝆 ᗘ䜢 㻠㻜㻷 䛻ᅛᐃ䛧䛯ሙྜ䛾 㻞 ẁ䝇䝔䞊䝆䛾෭⬟ ຊ䜢♧䛧䛯䜒䛾䛷䛒䜛䚹䛣䛾⤖ᯝ䛛䜙ప ഃ䛻 㻴㼛㻯㼡㻞㻔㻞㻡㻑㻕䜢 ሸ䛩䜛䛸෭⬟ຊ䛿⣙ 㻝㻟㻷 ௨ୗ䛷䛿Ⰻ䛔䛜䛭䜜௨ୖ䛾 ᗘ㡿ᇦ䛷䛿ᝏ䛟䛺䜚 㻲㼕㼓㻚㻟 䛾ᛶ⬟ヨ㦂䛸୍⮴䛩䜛䚹䛣䜜䛿 㻯㼛㼘㼐㻌 㻱㼚㼐 䛾 ᗘ䛜 㻝㻟㻷 ௨ୗ䛷䛿 㻴㼛㻯㼡㻞 䛾ẚ⇕䛜 㻴㼛㻯㼡 䜔 㻼㼎 䛻 ẚ䜉䛶㧗䛔䛯䜑Ⰻ䛔෭⬟ຊ䜢Ⓨ䛷䛝䜛䛜䚸㻝㻟㻷 ௨ୖ䛷䛿 㻴㼛㻯㼡 䛻ẚ䜉䛶ẚ⇕䛜ຎ䜚෭⬟ຊ䛜పୗ䛧䛶䛧䜎䛖䛛䜙䛷䛒 䜚ẚ⇕䛸䛾┦㛵䛜㧗䛔䛣䛸䜢♧䛧䛶䛔䜛䚹㻌 㻌 㻠䠊䜎䛸䜑㻌 㻞 ẁ෭ᮦ䛻 㻼㼎 䛾᭰䜟䜚䛻 㻴㼛㻯㼡 䜢⏝䛔䜛䛣䛸䛷 㻳㻹 ෭ ᶵ䛾ᛶ⬟䛜ྥୖ䛩䜛䛣䛸䛜䜟䛛䛳䛯䚹䛥䜙䛻ప ഃ䛻 㻴㼛㻯㼡㻞 䜢ሸ䛧䛯 㻞 ᒙ෭ჾ䛻䛧䛯ሙྜ䛷䛿 㻝㻟㻷 ௨ୗ䛾ᴟ ప 㡿ᇦ䛻䛚䛔䛶෭⬟ຊ䛜䛝䛟ᨵၿ䛥䜜䛯䚹㻌 Volumetric Specific Heat(J/(cm ࣭K)) 㻌 㻌 ― 106 ― 16 12 8 T1=40K HoCu(100%) Pb(100%) HoCu2(25%)+HoCu(75%) HoCu2(25%)+Pb(75%) 4 0 0 5 10 15 20 25 30 35 2nd Stage Temperature(K) 㻲㼕㼓㻚㻠㻌㻾㼑㼒㼞㼕㼓㼑㼞㼍㼠㼕㼛㼚㻌㼏㼍㼜㼍㼏㼕㼠㼥㻌 第83回 2010年度秋季低温工学・超電導学会 1P-p10 冷凍機 ୪ิ䝟䝹䝇⟶෭䝅䝇䝔䝮䛾㛤Ⓨ䠄ᩘ್ゎᯒ䠅㻌 Development of novel refrigeration system with multi pulse tubes (Numerical simulation) 㻌 Ỉ㔝㻌 ඞಇ䠈ụ⏣㻌 ஓ䠈㛗ᔱ㻌 ㈼䠄㕲㐨⥲◊䠅䠗ᖹ㻌 㟹ኵ䠈㧗ᶫ㻌 ㈆䠈ᒾᮏ㻌 ៅᖹ䠄䜶䜰䞉䜴䜷䞊䝍䞊䠅㻌 MIZUNO Katsutoshi, IKEDA Kazuya, NAGASHIMA Ken (RTRI); HIRAI Yasuo, TAKAHASHI Sadamitsu, IWAMOTO Shinpei (AWI) E-mail: [email protected] 㻌 㻝䠊䛿䛨䜑䛻㻌 ᆺ䛾ᴟప ᶵჾ䛾෭༷䜢ఏᑟ෭༷䛷⾜䛖ሙྜ䛻䛿䠈⇕ ఏᑟ䛾ほⅬ䛛䜙ᆺ䛾෭ᶵ༢య䜘䜚䜒ᑠᆺ䛾෭ᶵ䜢」 ᩘ⏝䛔䜛䛣䛸䛻䜘䜚䠈෭༷ຠ⋡䛜ᨵၿ䛥䜜䜛ྍ⬟ᛶ䛜䛒䜛䠊䛭 䛾䛯䜑䠈ᡃ䚻䛿」ᩘ䛾෭ᶵ䜢 1 ྎ䛾ᅽ⦰ᶵ䛷㐠㌿䛩䜛᪉ ἲ䜢᳨ウ䛧䛶䛔䜛䠊㻌 ᮏሗ䛷䛿䠈2 ྎ䛾෭ᶵ䛸 1 ྎ䛾ᅽ⦰ᶵ䜢⤌䜏ྜ䜟䛫䛯 ሙྜ䛾䠈ྛ෭ᶵ䛾ไᚚ䝞䝹䝤䛾㛤㛢䝍䜲䝭䞁䜾䛜ྠ┦䛚 䜘䜃㏫┦䛷䛾㐠㌿䜢ᑐ㇟䛸䛧䛯䠊䛣䜜䜙䛾㐠㌿䝰䞊䝗䛾㐪 䛔䛻䜘䜛෭⬟ຊ䠈ᅽ⦰ᶵ䜢ᩘ್ゎᯒ䛻䜘䜚᳨ド䛧䛯䠊㻌 㻌 㻞䠊ゎᯒ䝰䝕䝹㻌 ゎᯒ䛻⏝䛔䛶䛔䜛෭ᶵ䛿 GM ᪉ᘧ䝟䝹䝇⟶෭ᶵ㻔䜰 䜽䝔䜱䝤䝞䝑䝣䜯ᆺ㻕䛷䛒䜛䠊༢య㐠㌿䛾䛸䛝䠈෭⬟ຊ䛿⣙ 100 W@50 K 䛸䛺䛳䛶䛔䜛䠊㻌 ゎᯒ䛻䛿᩿⇕䝰䝕䝹䜢⏝䛔䠈䝟䝹䝇⟶௨እ䛾⟠ᡤ䛿➼ ᮲௳䠈䝟䝹䝇⟶㒊ศ䛷䛿᩿⇕᮲௳䛸䛺䛳䛶䛔䜛䠊䛺䛚䠈෭ ᦆኻ䛾䜏䜢⪃៖䛧䛶䛚䜚䠈䝅䝱䝖䝹ᦆኻ䜔ఏᑟᦆኻ䛿⪃៖䛧 䛶䛔䛺䛔䠊」ᩘ䛾䝟䝹䝇⟶䜢㐠㌿䛩䜛㝿䛻䛿ᅽ⦰ᶵ⬟ຊ䛾 ᙳ㡪䛜㢧ⴭ䛻䛺䜛䛸⪃䛘䜙䜜䜛䛯䜑䠈ὶㄏᑟᶵ䛾≉ᛶ䜢⪃ ៖䛧䠈㈇Ⲵ䛻䜘䛳䛶య✚ὶ㔞䛜ኚ䛩䜛䜘䛖䛻タᐃ䛧䛯䠊㻌 Fig.1 䛻㻌 ୪ิ㐠㌿䛾䝟䝹䝇⟶෭ᶵ䝰䝕䝹♧䛩䠊䜎䛯䠈 Fig.2 䛻䛿୍࿘ᮇ䛻䛚䛡䜛䝞䝹䝤䛾 on-off 䜢♧䛧䛶䛚䜚䠈ᅽ ⦰ᶵ㧗ᅽ䛸㧗ᅽ䝞䝑䝣䜯䠈ᅽ⦰ᶵపᅽ䛸పᅽ䝞䝑䝣䜯䛾䝞䝹 䝤䛿ྠ䛻㛤㛢䛩䜛䜒䛾䛸䛧䛯䠊ሬ䜚䛴䜆䛥䜜䛯༊㛫䛜”on”䜢 ♧䛧䠈(a),(b)䛿ᑐᛂ䛩䜛䝟䝹䝇⟶䜢♧䛩䠊㻌 㻌 㻟䠊ゎᯒ⤖ᯝ㻌 ྠ┦䛸㏫┦㐠㌿䛾 2 ✀㢮䛻䛴䛔䛶ゎᯒ䜢⾜䛳䛯䠊 ᮲௳䛿㐠㌿࿘Ἴᩘ 1.2 Hz䠈ึᮇ䝦䝸䜴䝮ሸᅽ 1.9 MPa 䛸 䛧䛯䠊ᅽ⦰ᶵ㧗ᅽ䠈పᅽ䛚䜘䜃䝟䝹䝇⟶ෆ㒊ᅽຊ䛾㛫ኚ 䜢 Fig.3, 4 䛻♧䛩䠊ྠ┦㐠㌿䛻䛿ᅽ⦰ᶵᅽຊ䛜䛝 䛟ኚື䛧䛶䛔䜛䛣䛸䛜䜟䛛䜛䠊䛣䛾䛸䛝(a),(b)ྛ䝟䝹䝇⟶䛾෭ ⬟ຊ䛾䛜 99 W䠈᩿⇕䜢௬ᐃ䛧䛯ᅽ⦰ᶵ䛿 1340 W 䛸䛺䛳䛯䠊㏫┦㐠㌿䛻䛚䛔䛶䛿෭⬟ຊ 131 W䠈 ᅽ⦰ᶵ㻌 㻌 1100 W 䛸䛺䜚䠈෭⬟ຊ䛰䛡䛷䛺䛟䠈ຠ⋡䜒 ᖜ䛻ᨵၿ䛥䜜䛶䛔䜛䛣䛸䛜䜟䛛䜛䠊ᐇ㦂䛻䛚䛔䛶䜒䠈㏫┦㐠 ㌿䛾᪉䛜෭⬟ຊ䠈ຠ⋡䛸䜒䛻ඃ䜜䛶䛚䜚䠈ゎᯒ䛸ഴྥ䛜୍ ⮴䛧䛯䠊䛣䜜䛿௨ୗ䛾䜘䛖䛻ㄝ᫂䛷䛝䜛䠊㻌 䐟ྠ┦㐠㌿䛷䛿ᅽ⦰ᶵ䛾㧗ᅽ䠈పᅽ䛔䛪䜜䛛䛾䝞䝹䝤 䛜㛢䛨䛶䛔䜛㛫䛜Ꮡᅾ䛩䜛䛯䜑䠈ฟཱྀᅽ䛾ୖ᪼䠈䜒䛧䛟䛿ධ ཱྀᅽ䛾ୗ㝆䛜㉳䛝䛶䛚䜚䠈ᅽຊᕪ䛜ᗈ䛜䛳䛯ศ䛰䛡ᅽ⦰ᶵ㈇ Ⲵ䛜ቑ䛘䛶䛧䜎䛖䠊㏫┦㐠㌿䛷䛿∦ഃ䛾䝞䝹䝤䛜ᖖ䛻㛤䛔 䛶䛔䜛䛯䜑䠈ᅽ⦰ᶵධཱྀ䠈ฟཱྀᅽຊ䛜䜋䜌୍ᐃ䛸䛺䜚䠈ᅽ⦰ ᶵ㈇Ⲵ䛜ᑠ䛥䛟䛺䜛䠊㻌 䐠㓄⟶䠈䝞䝹䝤䠈෭ჾ➼䛷䛾ᅽຊᦆኻ䛿సືὶయ䛾㐠 ື䜶䝛䝹䜼䞊䚸䛩䛺䜟䛱ὶ㏿䛾 2 䛻ẚ䛩䜛䠊䜘䛳䛶䠈ྠ䛨 ㉁㔞ὶ㔞䛻ᑐ䛧䛶䛿ὶ㏿䛜ᆒ୍䛺䜋䛹ᦆኻ䛜ᑠ䛥䛟䛺䜛䠊㏫ ┦㐠㌿䛷䛿䠈ᅽ⦰ᶵ䛾ᅽຊኚື䛜ᑠ䛥䛔䛣䛸䛛䜙䜒䜟䛛䜛 䜘䛖䛻䠈ὶ䜜䛜ᆒ୍䛷䛒䜛䠊䛭䛾䛯䜑ᅽ⦰ᶵ䛸䝟䝹䝇⟶ෆ㒊䛾 ᅽຊᕪ䛜ᑠ䛥䛟䛷䛝䜛䛾䛷䠈ᑡ䛺䛔ᅽ⦰ᶵ䛷䜒ྠ┦㐠 ㌿䛸ྠᵝ䠈䜒䛧䛟䛿䛭䜜௨ୖ䛾෭⬟ຊ䜢Ⓨ⏕䛷䛝䜛䠊㻌 ᮏ◊✲䛿ᅜᅵ㏻┬䛾ᅜᗜ⿵ຓ㔠䜢ཷ䛡䛶ᐇ䛧䛯䠊㻌 㻌 Fig.1 Model of GM type active buffer multi pulse tubes cryocooler. 㻌 㻌 Same phase 㻯㼛㼙㼜㻚㻌㻴 㻮㼡㼒㼒㼑㼞㻌㻴㻌 㻯㼛㼙㼜㻚㻌㻸 㻮㼡㼒㼒㼑㼞㻌㻸㻌 㻔㼍㻕㻘㻌㻔㼎㻕㻌 㻌 㻌 㻌 㻔㼍㻕㻘㻌㻔㼎㻕㻌 㻌 㻌 㻌 㻌 㻌 Reverse phase 㻯㼛㼙㼜㻚㻌㻴 㻮㼡㼒㼒㼑㼞㻌㻴㻌 㻯㼛㼙㼜㻚㻌㻸 㻮㼡㼒㼒㼑㼞㻌㻸㻌 㻔㼎㻕㻌 㻔㼍㻕㻌 㻌 㻔㼍㻕㻌 㻔㼎㻕㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻜㻌 㻌 㻌 㻝㻛㻞㼠㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㼠㻌 Fig.2 Valve sequence of each drive mode. 㻌 Fig.3 Pressure wavefomes of compressor and pulse tubes (same phase). 㻌 㻌 㻌 Fig.4 Pressure wavefomes of compressor and pulse tubes (reverse phase). ཧ⪃ᩥ⊩㻌 1. K. Ikeda, et al.: Abstracts of CSJ Conference, Vol. 82 (2010) p.98 ― 107 ― 第83回 2010年度秋季低温工学・超電導学会 1P-p11 冷凍機 ୪ิࣃࣝࢫ⟶෭ࢩࢫࢸ࣒ࡢ㛤Ⓨ Development of novel refrigeration system with multi pulse tubes ụ⏣ஓ㸪Ỉ㔝ඞಇ㸪㛗ᔱ ㈼ (㕲㐨⥲◊);㧗ᶫ㈆㸪ᒾᮏៅᖹ㸪ᖹ㟹ኵ㸦࢚࣭࢛࣮࢘ࢱ࣮㸧 IKEDA Kazuya㸪 MIZUNO Katsutoshi㸪NAGASHIMA Ken(RTRI); TAKAHASHI Sadamitsu㸪IWAMOTO Shinpei㸪HIRAI Yasuo (AWI) E-mail: [email protected] 䠍䠊㻌 䛿䛨䜑䛻㻌 4 ࢥࣝࠊ1 ࢡࣛ࢜ࢫࢱࢵࢺࡢ㧗 ㉸㟁ᑟ☢▼ᑐࡋ ࡚ࠊᅽ⦰ᶵ㸪┦ไᚚࢆඹ㏻ࡋࡓ୪ิࣃࣝࢫ⟶෭ᶵ ࡼࡿ෭༷ࢩࢫࢸ࣒ࢆ᳨ウࡋ࡚࠸ࡿࠋ ࣃࣝࢫ⟶ࢆୖୗ᪉ྥࡢⲴ㔜ᨭᣢᮦࡋ࡚ే⏝ࡉࡏࡿሙྜ ࢆᐃࡋ࡚ࠊࣃࣝࢫ⟶ࢆ FRP ⟄࡛⿵ᙉࡋࡓሙྜࡢ෭ ⬟ຊኚࡘ࠸࡚⿵ᙉ᪉ἲࡢ㐪࠸ࡼࡿẚ㍑ࢆ⾜ࡗࡓࠋ ࡉࡽࠊ๓ᅇⓎ⾲[1]࠾࠸࡚୪ิ㐠㌿ࡢ෭⬟ຊࡀ ༢య㐠㌿ࡼࡾపୗࡋࡓࡇࡘ࠸࡚ࠊไᚚࣂࣝࣈࡢ㛤㛢 ࢱ࣑ࣥࢢ┦ࢆ෭ᶵ㛫࡛ 180rࡎࡽࡍࡇࡼࡾࠊ༑ 䠎䠊㻌 ᐇ㦂⨨㻌 ࣃࣝࢫ⟶ࢆ FRP ⟄࡛⿵ᙉࡋࡓヨ㦂ࡣࠊࣃࣝࢫ⟶࿘ࡾ FRP ༙⟄㸰ࡘࢆᢪࡁྜࢃࡏࡿࡇ࡛⾜ࡗࡓࠋFRP ࡀ ࣃࣝࢫ⟶ࡽ㞳ࢀ࡚࠸ࡿሙྜࠊᐦ╔ࡋࡓሙྜࠊFRP ࢆࡘࡅ࡞࠸ሙྜࡢ㸱ࣃࢱ࣮࡛ࣥᐇࡋࡓࠋ ୪ิࣃࣝࢫ⟶෭ᶵ㐠㌿ヨ㦂࡛ࡣࠊFig.1 ♧ࡍࣂࣝࣈ 㓄⨨ࠊ࢞ࢫࣇ࣮ࣟࡼࡾࠊྑᅗ♧ࡍࣂࣝࣈ㛤㛢ࢱ࣑ࣥ Refrigerating capacity [W] Fig.1 Gas flow and valve open-and-close sequence ศ࡞෭⬟ຊࡀᚓࡽࢀࡿࡇࢆ☜ㄆࡋࡓࠋ ࢢ࡛෭ᶵࡢ㐠㌿ࢆ⾜ࡗࡓࠋ Cold end temperature [K] Fig.2 Refrigerating capacity according to FRP 䠏䠊㻌 ᐇ㦂⤖ᯝ䛸䜎䛸䜑㻌 ࣃࣝࢫ⟶ࢆ FRP ⟄࡛⿵ᙉࡋࡓヨ㦂⤖ᯝࢆ Fig.2 ♧ attachment position ࡍࠋ⿵ᙉࡋ࡞࠸ሙྜᐦ╔ࡉࡏ࡚⿵ᙉࡋࡓሙྜ࡛ࡣࠊ෭ ⬟ຊࢇᕪࡀⓎ⏕ࡋ࡞࠸ࠋ㠀᥋ゐࡢሙྜࡣࠊFRP Parallel run in the reversing phase ⟄ࣃࣝࢫ⟶ ᗘᕪࡀ⏕ࡌࠊ ࡑࡢ㍽ᑕ⇕ࡼࡾ⣙ 10W ࡣ⣙ 0.3W ࡛↓ど࡛ࡁࡿ⠊ᅖ࡛࠶ࡿࠋࡇࡢࡇࡼࡾࠊࣃࣝ ࢫ⟶ࢆ FRP ࡛ᐦ╔⿵ᙉࡋࠊࢡࣛ࢜ࢫࢱࢵࢺ୰࠾ࡅࡿ ࣃࣝࢫ⟶෭ᶵ 2 ྎࡢ୪ิ㐠㌿⤖ᯝࢆ Fig.3 ♧ࡍࠋࢢ ࣛࣇୖ㒊ࡣᅽ⦰ᶵ㧗పᅽࡢ࢞ࢫࢆ PTR1 PTR2 ࡛ 180r┦ࢆࡎࡽࡋࡓࡶࡢ࡛ࠊࢢࣛࣇୗ㒊ࡀྠ┦㐠㌿ ࡛࠶ࡿࠋᐇ⥺ࡀ෭⬟ຊࢆ⾲ࡋࠊἼ⥺ࡣ COP ࢆ♧ࡍࠋ50K Parallel run in the same phase COP [-] ㉸㟁ᑟࢥࣝࡢୖୗⲴ㔜ᨭᣢࡋ࡚ࡢྍ⬟ᛶࡀ᳨ドࡉࢀࡓࠋ Refrigerating capacity Refrigerating capacity [W] ࡢ෭⬟ຊపୗ࡞ࡗࡓࠋᖖ ᇦࡽ⇕ఏᑟࡼࡿධ⇕ ࠾ࡅࡿ PTR1 PTR2 ࡢ෭⬟ຊࡢࡣࠊ180r㏫┦ ࡀ 118.6Wࠊྠ┦ࡣ 76W ࡞ࡾ⣙ 1.6 ಸࡢ෭⬟ຊྥ Refrigerating capacity ୖ࡞ࡗࡓࠋᾘ㈝㟁ຊࢆᥞ࠼࡚ࡢ㐠㌿ẚ㍑࡛࠶ࡿࡓࡵࠊ Cold end temperature[K] COP ࡘ࠸࡚ࡶྠᵝࡢྥୖ࡞ࡿࠋ 50K ࡛㐠⏝ྍ⬟࡞㧗 ㉸㟁ᑟ☢▼ࡀ㉸㟁ᑟࣜࢽ࡛᥇ Fig.3 The parallel-run result by the difference in a gas ⏝ࡉࢀࡓሙྜࡢ෭༷ࢩࢫࢸ࣒ࡋ࡚ᚲせ࡞⬟ຊࢆ᭷ࡍࡿ⤖ phase ᯝࡀᚓࡽࢀࡓࠋᚋࡣࠊࡉࡽ࡞ࡿຠ⋡ྥୖࢆᅗࡾࡓ࠸ࠋ ཧ⪃ᩥ⊩㻌 ᮏᐇ㦂ࡣᅜᅵ㏻┬ࡢᅜᗜ⿵ຓ㔠ࢆཷࡅ࡚ᐇࡋࡓࠋ [1]K.Ikeda,et al.:Abstract of CSJ Conference,Vol.82(2010)p.98 ― 108 ― 第83回 2010年度秋季低温工学・超電導学会 1P-p12 冷凍機 >@ >@ .a . -7 ― 109 ― 第83回 2010年度秋季低温工学・超電導学会 1P-p13 冷却システム (1) ᾮయ❅⣲䛾⮬↛ᚠ⎔䛻䜘䛳䛶䠎䠌䠌䡉㧗 ㉸ఏᑟ┤ὶ㏦㟁ᐇ㦂⨨㻌 㻺㼍㼠㼡㼞㼍㼘㻌㼏㼕㼞㼏㼡㼘㼍㼠㼕㼛㼚㻌㼛㼒㻌㻸㻺㻞㻌㼕㼚㻌㼠㼔㼑㻌㻞㻜㻜㻌㼙㻌㻴㼀㻿㻌㻰㻯㻌㼑㼤㼜㼑㼞㼕㼙㼑㼚㼠㼍㼘㻌㼒㼍㼏㼕㼘㼕㼠㼥㻌 㻌 䜲䝽䝜䝣䞉䝴䞊䝸䚸Ώ㑓㻌 ⿱ᩥ䚸Ἑཎ㻌 ᩄ⏨䚸㎶㻌 ㄔ䚸Ꮮ㻌 ᘓ䚸ᒣཱྀ㻌 సኴ㑻㻌 㻔୰㒊㻕㻌 㻌 㻵㼂㻭㻺㻻㼂㻌㼅㼡㼞㼥㻘㻌㼃㻭㼀㻭㻺㻭㻮㻱㻌㻴㼕㼞㼛㼒㼡㼙㼕㻘㻌㻷㻭㼃㻭㻴㻭㻾㻭㻌㼀㼛㼟㼔㼕㼛㻘㻌㻴㻭㻹㻭㻮㻱㻌㻹㼍㼗㼛㼠㼛㻘㻌㻿㼁㻺㻌㻶㼕㼍㼚㻘㻌㼅㻭㻹㻭㻳㼁㻯㻴㻵㻌㻿㼍㼠㼍㼞㼛㼡㻌㻔㻯㼔㼡㼎㼡㻌㼁㼚㼕㼢㻚㻕㻌 㻱㻙㼙㼍㼕㼘㻦㻌㼕㼢㼍㼚㼛㼢㻬㼕㼟㼏㻚㼏㼔㼡㼎㼡㻚㼍㼏㻚㼖㼜㻌 㻌 㻝䠊㻵㼚㼠㼞㼛㼐㼡㼏㼠㼕㼛㼚㻌 㻠䠊㻴㼑㼍㼠㼑㼞㻌㼑㼤㼜㼑㼞㼕㼙㼑㼚㼠㻌 㻯㼛㼚㼢㼑㼚㼠㼕㼛㼚㼍㼘㻌 㼐㼑㼟㼕㼓㼚㻌 㼛㼒㻌 㻴㼀㻿㻌 㼏㼍㼎㼘㼑㻌 㼏㼛㼛㼘㼕㼚㼓㻌 㼟㼥㼟㼠㼑㼙㻌 㼀㼔㼑㻌㼏㼞㼥㼜㼕㼜㼑㻌㼕㼟㻌㼑㼝㼡㼕㼜㼜㼑㼐㻌㼣㼕㼠㼔㻌㼠㼔㼞㼑㼑㻌㼏㼛㼙㼜㼍㼏㼠㻌㼔㼑㼍㼠㼑㼞㼟㻌㼣㼕㼠㼔㻌 㼜㼞㼑㼟㼡㼜㼜㼛㼟㼑㼟㻌 㼍㼜㼜㼘㼕㼏㼍㼠㼕㼛㼚㻌 㼛㼒㻌 㼏㼞㼥㼛㼜㼡㼙㼜㼟㻌 㼠㼛㻌 㼏㼕㼞㼏㼡㼘㼍㼠㼑㻌 㼘㼕㼝㼡㼕㼐㻌 㼏㼍㼜㼍㼏㼕㼠㼥㻌㼛㼒㻌㼡㼜㻌㼠㼛㻌㻟㻡㻜㻌㼃㻌㼙㼛㼡㼚㼠㼑㼐㻌㼍㼠㻌㼠㼔㼑㻌㼡㼜㼜㼑㼞㻌㼟㼡㼞㼒㼍㼏㼑㻌㼛㼒㻌㼕㼚㼚㼑㼞㻌 㼞㼑㼒㼞㼕㼓㼑㼞㼍㼚㼠㻚㻌 㻴㼛㼣㼑㼢㼑㼞㻘㻌 㼠㼔㼑㼥㻌 㼍㼞㼑㻌 㼜㼛㼣㼑㼞㼒㼡㼘㻌 㼟㼛㼡㼞㼏㼑㻌 㼛㼒㻌 㼔㼑㼍㼠㻌 㼘㼛㼍㼐㻌 㼜㼕㼜㼑㻚㻌㼀㼔㼑㻌㼠㼑㼙㼜㼑㼞㼍㼠㼡㼞㼑㻌㼐㼕㼟㼠㼞㼕㼎㼡㼠㼕㼛㼚㻌㼣㼍㼟㻌㼙㼑㼍㼟㼡㼞㼑㼐㻌㼎㼥㻌㻣㻌㼜㼍㼕㼞㼟㻌㼛㼒㻌 㼍㼚㼐㻌㼜㼛㼟㼟㼑㼟㼟㻌㼍㻌㼚㼡㼙㼎㼑㼞㻌㼛㼒㻌㼛㼠㼔㼑㼞㻌㼐㼕㼟㼍㼐㼢㼍㼚㼠㼍㼓㼑㼟㻚㻌㻭㼘㼠㼑㼞㼚㼍㼠㼕㼢㼑㼘㼥㻘㻌 㼜㼘㼍㼠㼕㼚㼡㼙㻌 㼞㼑㼟㼕㼟㼠㼍㼚㼏㼑㻌 㼠㼔㼑㼞㼙㼛㼙㼑㼠㼑㼞㼟㻌 㼘㼛㼏㼍㼠㼑㼐㻌 㼍㼠㻌 㼐㼕㼒㼒㼑㼞㼑㼚㼠㻌 㼠㼔㼑㼞㼙㼍㼘㻌㼟㼕㼜㼔㼛㼚㻌㼑㼒㼒㼑㼏㼠㻌㼏㼍㼚㻌㼎㼑㻌㼡㼟㼑㼐㻚㻌㼀㼔㼑㻌㼚㼑㼣㻌㻞㻜㻜㻌㼙㻌㻴㼀㻿㻌㻰㻯㻌 㼐㼕㼟㼠㼍㼚㼏㼑㼟㻌 㼒㼞㼛㼙㻌 㼠㼔㼑㻌 㼕㼚㼘㼑㼠㻚 㻱㼒㼒㼑㼏㼠㻌 㼛㼒㻌 㼘㼛㼏㼍㼘㻌 㼔㼑㼍㼠㼕㼚㼓㻌 㼛㼚㻌 㼠㼔㼑㻌 㼒㼍㼏㼕㼘㼕㼠㼥㻌㼕㼚㻌㻯㼔㼡㼎㼡㻌㼁㼚㼕㼢㼑㼞㼟㼕㼠㼥㻌㼕㼟㻌㼑㼝㼡㼕㼜㼜㼑㼐㻌㼣㼕㼠㼔㻌㼔㼑㼍㼠㼑㼞㼟㻌㼠㼛㻌㼍㼒㼒㼑㼏㼠㻌 㼜㼍㼞㼍㼙㼑㼠㼑㼞㼟㻌㼛㼒㻌㻸㻺㻞㻌㼒㼘㼛㼣㻌㼣㼍㼟㻌㼟㼠㼡㼐㼕㼑㼐㻌㻔㻲㼕㼓㻚㻌㻞㻘㻌㻟㻕㻚㻌 㼠㼑㼙㼜㼑㼞㼍㼠㼡㼞㼑㻌 㼐㼕㼟㼠㼞㼕㼎㼡㼠㼕㼛㼚㻘㻌 㼍㼚㼐㻌 㻠㻙㻡㻌 㼙㻌 㼑㼘㼑㼢㼍㼠㼕㼛㼚㻌 㼐㼕㼒㼒㼑㼞㼑㼚㼏㼑㻌 㼜㼞㼛㼢㼕㼐㼑㼟㻌㼏㼛㼚㼐㼕㼠㼕㼛㼚㼟㻌㼒㼛㼞㻌㼚㼍㼠㼡㼞㼍㼘㻌㼏㼕㼞㼏㼡㼘㼍㼠㼕㼛㼚㻌㼛㼒㻌㻸㻺㻞㻚㻌㻼㼞㼑㼘㼕㼙㼕㼚㼍㼞㼥㻌 㼑㼤㼜㼑㼞㼕㼙㼑㼚㼠㼟㻌 㼣㼑㼞㼑㻌 㼏㼍㼞㼞㼕㼑㼐㻌 㼛㼡㼠㻌 㼠㼛㻌 㼕㼚㼢㼑㼟㼠㼕㼓㼍㼠㼑㻌 㼠㼔㼑㻌 㼎㼑㼔㼍㼢㼕㼛㼞㻌 㼛㼒㻌 㻸㻺㻞㻌㼒㼘㼛㼣㻌㼡㼚㼐㼑㼞㻌㼘㼛㼏㼍㼘㻌㼔㼑㼍㼠㼕㼚㼓㻚㻌 㻌 㻞䠊㻱㼤㼜㼑㼞㼕㼙㼑㼚㼠㼍㼘㻌㼒㼍㼏㼕㼘㼕㼠㼥㻌 㻯㼛㼚㼟㼠㼞㼡㼏㼠㼕㼛㼚㻌㼛㼒㻌㼍㻌㼚㼑㼣㻌㼑㼤㼜㼑㼞㼕㼙㼑㼚㼠㼍㼘㻌㼒㼍㼏㼕㼘㼕㼠㼥㻌㼍㼠㻌㼠㼔㼑㻌㻯㼔㼡㼎㼡㻌 㼁㼚㼕㼢㼑㼞㼟㼕㼠㼥㻌㼣㼍㼟㻌㼘㼍㼡㼚㼏㼔㼑㼐㻌㼕㼚㻌㻞㻜㻜㻥㻌㼍㼚㼐㻌㼏㼛㼙㼜㼘㼑㼠㼑㼐㻌㼕㼚㻌㻶㼍㼚㻚㻌㻞㻜㻝㻜㻚㻌 㻞㻜㻜㻌㼙㻌㻰㻯㻌㼏㼍㼎㼘㼑㻌㼡㼟㼕㼚㼓㻌㻮㼕㻙㻞㻞㻞㻟㻌㻴㼀㻿㻌㼠㼍㼜㼑㼟㻌㼣㼍㼟㻌㼙㼍㼚㼡㼒㼍㼏㼠㼡㼞㼑㼐㻌 㼎㼥㻌㻿㼡㼙㼕㼠㼛㼙㼛㻌㻱㼘㼑㼏㼠㼞㼕㼏㻌㻵㼚㼐㼡㼟㼠㼞㼕㼑㼟㻘㻌㻸㼠㼐㻚㻌㼕㼚㻌㼍㼏㼏㼛㼞㼐㼍㼚㼏㼑㻌㼣㼕㼠㼔㻌㼛㼡㼞㻌 㼐㼑㼟㼕㼓㼚㻚㻌 㼀㼔㼑㻌 㼒㼍㼏㼕㼘㼕㼠㼥㻌 㼕㼟㻌 㼑㼝㼡㼕㼜㼜㼑㼐㻌 㼣㼕㼠㼔㻌 㼟㼑㼢㼑㼞㼍㼘㻌 㼑㼚㼔㼍㼚㼏㼑㼙㼑㼚㼠㼟㻌 㼠㼔㼍㼠㻌㼐㼕㼟㼠㼕㼚㼓㼡㼕㼟㼔㻌㼕㼠㻌㼒㼞㼛㼙㻌㼍㼘㼘㻌㼠㼔㼑㻌㼑㼤㼕㼟㼠㼕㼚㼓㻌㼛㼚㼑㼟㻚㻌㻵㼚㻌㼜㼍㼞㼠㼕㼏㼡㼘㼍㼞㻘㻌㼠㼔㼑㻌 㼏㼡㼞㼞㼑㼚㼠㻌 㼘㼑㼍㼐㼟㻌 㼍㼞㼑㻌 㼑㼝㼡㼕㼜㼜㼑㼐㻌 㼣㼕㼠㼔㻌 㼍㻌 㻼㼑㼘㼠㼕㼑㼞㻌 㼑㼘㼑㼙㼑㼚㼠㻌 㼠㼛㻌 㼞㼑㼐㼡㼏㼑㻌 㻌 㼔㼑㼍㼠㻌 㼘㼑㼍㼗㼍㼓㼑㻧㻌 㼟㼙㼛㼛㼠㼔㻌 㼏㼞㼥㼛㼓㼑㼚㼕㼏㻌 㼜㼕㼜㼑㼟㻌 㼕㼚㼟㼠㼑㼍㼐㻌 㼛㼒㻌 㼏㼛㼞㼞㼡㼓㼍㼠㼑㼐㻌 㻲㼕㼓㻚㻌㻞㻌㻼㼛㼣㼑㼞㻌㼍㼚㼐㻌㼠㼑㼙㼜㼑㼞㼍㼠㼡㼞㼑㻌㼛㼒㻌㼠㼔㼑㻌㼔㼑㼍㼠㼑㼞㻌㻴㼀㻟㻚㻌㻮㼛㼕㼘㼕㼚㼓㻌㼛㼒㻌 㼛㼚㼑㼟㻌 㼍㼞㼑㻌 㼡㼟㼑㼐㻌 㼕㼚㻌 㼛㼞㼐㼑㼞㻌 㼠㼛㻌 㼞㼑㼐㼡㼏㼑㻌 㼔㼥㼐㼞㼍㼡㼘㼕㼏㻌 㼒㼞㼕㼏㼠㼕㼛㼚㻌 㼍㼚㼐㻌 㻸㻺㻞㻌㼎㼑㼓㼕㼚㼟㻌㼍㼠㻌㼍㼎㼛㼡㼠㻌㻤㻜㻌㼃㻚㻌㻴㼑㼍㼠㼑㼞㻌㼠㼑㼙㼜㼑㼞㼍㼠㼡㼞㼑㻌㼐㼞㼛㼜㼟㻌 㼜㼞㼑㼟㼟㼡㼞㼑㻌 㼐㼞㼛㼜㻧㻌 㼠㼑㼞㼙㼕㼚㼍㼘㻌 㼡㼚㼕㼠㼟㻌 㼍㼞㼑㻌 㼙㼍㼐㼑㻌 㼙㼛㼢㼍㼎㼘㼑㻌 㼠㼛㻌 㼟㼡㼐㼐㼑㼚㼘㼥㻌㼐㼡㼑㻌㼠㼛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㼏㼞㼑㼍㼟㼑㼟㻚㻌 㼏㼛㼙㼜㼑㼚㼟㼍㼠㼑㻌 㼒㼛㼞㻌 㼠㼔㼑㼞㼙㼍㼘㻌 㼏㼛㼚㼠㼞㼍㼏㼠㼕㼛㼚㻛㼑㼤㼜㼍㼚㼟㼕㼛㼚㻌 㼛㼒㻌 㼠㼔㼑㻌 㼏㼍㼎㼘㼑㻚㻌 㻭㼡㼠㼛㼙㼍㼠㼑㼐㻌 㼙㼑㼍㼟㼡㼞㼑㼙㼑㼚㼠㻌 㼟㼥㼟㼠㼑㼙㻌 㼞㼑㼍㼐㻌 㼐㼍㼠㼍㻌 㼒㼞㼛㼙㻌 㼙㼛㼞㼑㻌 㼠㼔㼍㼚㻌 㻡㻜㻜㻌㼟㼑㼚㼟㼛㼞㼟㻌㼣㼕㼠㼔㻌㼍㻌㼜㼑㼞㼕㼛㼐㻌㼛㼒㻌㻟㻌㼟㻚㻌 㻌 㻟䠊㻼㼞㼑㼟㼟㼡㼞㼑㻌㼐㼞㼛㼜㻌 㻸㻺㻞㻌㼒㼘㼛㼣㻌㼕㼚㻌㼏㼞㼥㼜㼕㼜㼑㻌㼣㼍㼟㻌㼏㼔㼍㼞㼍㼏㼠㼑㼞㼕㼦㼑㼐㻌㼎㼥㻌㻾㼑㼥㼚㼛㼘㼐㼟㻌㼚㼡㼙㼎㼑㼞㻌 㼣㼕㼠㼔㼕㼚㻌 㼠㼔㼑㻌 㼞㼍㼚㼓㼑㻌 㼛㼒㻌 㻥㻜㻜㻜㻙㻞㻜㻜㻜㻜㻚㻌 㼀㼔㼑㻌 㼜㼞㼑㼟㼟㼡㼞㼑㻌 㼐㼕㼒㼒㼑㼞㼑㼚㼏㼑㻌 㼎㼑㼠㼣㼑㼑㼚㻌 㼠㼑㼞㼙㼕㼚㼍㼘㼟㻌 㼍㼟㻌 㼍㻌 㼒㼡㼚㼏㼠㼕㼛㼚㻌 㼛㼒㻌 㼒㼘㼛㼣㻌 㼞㼍㼠㼑㻌 㼣㼍㼟㻌 㼙㼑㼍㼟㼡㼞㼑㼐㻚㻌 㻾㼑㼟㼡㼘㼠㼟㻌 㼍㼞㼑㻌 㼟㼔㼛㼣㼚㻌 㼕㼚㻌 㻲㼕㼓㻚㻌 㻝㻚㻌 㻿㼙㼛㼛㼠㼔㻌 㼏㼡㼞㼢㼑㻌 㼑㼤㼔㼕㼎㼕㼠㼟㻌 㼠㼔㼑㻌 㼠㼔㼑㼛㼞㼑㼠㼕㼏㼍㼘㻌 㼑㼟㼠㼕㼙㼍㼠㼕㼛㼚㻧㻌 㼕㼠㻌 㼍㼓㼞㼑㼑㼟㻌 㼣㼕㼠㼔㻌 㼠㼔㼑㻌 㼑㼤㼜㼑㼞㼕㼙㼑㼚㼠㼍㼘㻌 㼐㼍㼠㼍㻌 㼞㼑㼍㼟㼛㼚㼍㼎㼘㼥㻌 㼣㼑㼘㼘㻌 㼍㼚㼐㻌 㼏㼍㼚㻌 㼎㼑㻌 㼡㼟㼑㼐㻌 㼒㼛㼞㻌 㼐㼑㼟㼕㼓㼚㻌 㼛㼒㻌 㼘㼛㼚㼓㻌 㼐㼕㼟㼠㼍㼚㼏㼑㻌 㼜㼛㼣㼑㼞㻌㼠㼞㼍㼚㼟㼙㼕㼟㼟㼕㼛㼚㻌㼘㼕㼚㼑㼟㻚㻌 㻌 㻲㼕㼓㻚㻌㻟㻌㼀㼑㼙㼜㼑㼞㼍㼠㼡㼞㼑㻌㼛㼒㻌㻸㻺㻞㻌㼎㼑㼒㼛㼞㼑㻌㼍㼚㼐㻌㼍㼒㼠㼑㼞㻌㼠㼔㼑㻌㼔㼑㼍㼠㼑㼞㻚㻌㼀㼔㼑㻌 㼐㼕㼟㼠㼍㼚㼏㼑㻌㼎㼑㼠㼣㼑㼑㼚㻌㼠㼔㼑㼞㼙㼛㼙㼑㼠㼑㼞㼟㻌㼀㻼㻢㻞㻌㼍㼚㼐㻌㼀㻼㻣㻞㻌㼕㼟㻌㻝㻞㻌㼙㻚㻌 㻌 㻲㼕㼓㻚㻝㻌㻼㼞㼑㼟㼟㼡㼞㼑㻌㼐㼞㼛㼜㻌㼍㼟㻌㼍㻌㼒㼡㼚㼏㼠㼕㼛㼚㻌㼛㼒㻌㻸㻺㻞㻌㼒㼘㼛㼣㻌㼞㼍㼠㼑㻚㻌㻿㼙㼛㼛㼠㼔㻌 㼏㼡㼞㼢㼑㻌㼟㼔㼛㼣㼟㻌㼐㼑㼟㼕㼓㼚㻌㼢㼍㼘㼡㼑㼟㻚㻌 㻌 㻡䠊㻯㼛㼚㼏㼘㼡㼟㼕㼛㼚㻌 㼀㼔㼑㻌 㼐㼍㼠㼍㻌 㼛㼎㼠㼍㼕㼚㼑㼐㻌 㼏㼛㼚㼒㼕㼞㼙㼑㼐㻌 㼛㼡㼞㻌 㼡㼚㼐㼑㼞㼟㼠㼍㼚㼐㼕㼚㼓㻌 㼛㼒㻌 㼠㼔㼑㻌 㼎㼑㼔㼍㼢㼕㼛㼞㻌㼛㼒㻌㼠㼔㼑㻌㼑㼤㼜㼑㼞㼕㼙㼑㼚㼠㼍㼘㻌㼒㼍㼏㼕㼘㼕㼠㼥㻌㼍㼠㻌㼐㼕㼒㼒㼑㼞㼑㼚㼠㻌㼔㼑㼍㼠㻌㼘㼛㼍㼐㼟㻌㼍㼚㼐㻌 㼍㼘㼘㼛㼣㻌㼐㼑㼟㼕㼓㼚㻌㼍㻌㼒㼡㼘㼘㻙㼟㼏㼍㼘㼑㻌㻸㻺㻞㻌㼚㼍㼠㼡㼞㼍㼘㻌㼏㼕㼞㼏㼡㼘㼍㼠㼕㼛㼚㻌㼑㼤㼜㼑㼞㼕㼙㼑㼚㼠㻚㻌 㻌 㻾㼑㼒㼑㼞㼑㼚㼏㼑㼟㻌 㻝㻚㻌 㻭㻚㻌 㻾㼍㼐㼛㼢㼕㼚㼟㼗㼥㻘㻌 㻭㻚㻌 㼆㼔㼡㼗㼛㼢㼟㼗㼥㻦㻌 㻔㻞㻜㻜㻢㻕㻌 㻴㼂㻰㻯㻙㻹㻵㼀㻙㻌 㻭㼞㼍㼐㼛㼢㼕㼚㼟㼗㼥㻙㻜㻞㻞㻝㻜㻢㻙㻝㻌 㻞㻚㻌 㻭㻚㻌 㻾㼍㼐㼛㼢㼕㼚㼟㼗㼥㻘㻌 㻭㻚㻌 㼆㼔㼡㼗㼛㼢㼟㼗㼥㻦㻌 㻔㻞㻜㻜㻢㻕㻌 㻴㼂㻰㻯㻙㻹㻵㼀㻙㻌 㻭㼞㼍㼐㼛㼢㼕㼚㼟㼗㼥㻙㻜㻞㻞㻤㻜㻢㻙㻝㻌 㻟㻚㻌 㼅㼡㻚㻌 㻵㼢㼍㼚㼛㼢㻘㻌 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 㻤㻞㻌 㻔㻞㻜㻝㻜㻕㻌㼜㻚㻌㻝㻜㻞㻌 㻌 ― 110 ― 第83回 2010年度秋季低温工学・超電導学会 1P-p14 冷却システム (1) 䝖䝻䜲䝎䝹㻌 ᙧ≪㻌 㧗⁈㉸ബᑟ㻌 㻿㻹㻱㻿 ⏝㻌 ᴟప⁈㻌 ෭༷㻌 䝅䝇䝔䝮䛾㻌 ⇕ᵓ㐀㻌 ゎᯒ㻌 㻿㼠㼞㼡㼏㼠㼡㼞㼍㼘㻌㼍㼚㼐㻌㼀㼔㼑㼞㼙㼍㼘㻌㻭㼚㼍㼘㼥㼟㼕㼟㻌㼛㼒㻌G㼀㼛㼞㼛㼕㼐㼍㼘㻌㻯㼛㼚㼒㼕㼓㼡㼞㼍㼠㼕㼛㼚㻌㼛㼒㻌㼠㼔㼑㻌㻴㼀㻿㻌㻿㻹㻱㻿㻌㻯㼛㼛㼘㼕㼚㼓㻌㻿㼥㼟㼠㼑㼙㻌 㻌 簙G 织虙䠈蕨G 豀綋㻘㻌 綎G 赿膲㻘㻌 簙G 襛苷㻘㻌 贜G 虎褷㻘㻌 胞G 茾裌G 㻔豈糑絣篥蕍粽蚭㻕G 㻰㼑㼡㼗㻙㼅㼛㼚㼓㻌㻷㼛㼔䠈㻌 㻴㼍㼚㼗㼕㼘㻌㼅㼑㼛㼙㻘㻌㻴㼥㼛㻙㻮㼛㼚㼓㻌㻷㼕㼙㻘㻌㻶㼡㼚㼟㼑㼛㼗㻌㻷㼛㻘㻌㼅㼛㼚㼓㻙㻶㼡㻌㻴㼛㼚㼓㻘㻌㻿㼑㼛㼚㼓㻙㻶㼑㻌㻼㼍㼞㼗㻌㻔㻷㻵㻹㻹㻕㻌 㻱㻙㼙㼍㼕㼘㻦㻌㼐㼥㼗㼛㼔㻬㼗㼕㼙㼙㻚㼞㼑㻚㼗㼞㻌 㻌 㼏㼡㼞㼞㼑㼚㼠㻌㼛㼒㻌㻥㻢㻜㻌㻭㻘㻌㼍㼚㼐㻌㼠㼔㼑㻌㼏㼛㼚㼐㼡㼏㼠㼕㼛㼚㻌㼔㼑㼍㼠㻌㼞㼍㼐㼕㼍㼠㼑㼐㻌㼠㼔㼞㼛㼡㼓㼔㻌 㻝䠊㻵㼚㼠㼞㼛㼐㼡㼏㼠㼕㼛㼚㻌 㼠㼔㼑㻌 㼟㼡㼜㼜㼛㼞㼠㻌 㼎㼍㼞㻌 㼍㼚㼐㻌 㼟㼑㼚㼟㼛㼞㻌 㼘㼕㼚㼑㻌 㼒㼞㼛㼙㻌 㻤㻜㻌 㻷㻌 㼞㼍㼐㼕㼍㼠㼕㼛㼚㻌 㼟㼔㼕㼑㼘㼐㻌 㼀㼔㼑㻌㻿㻹㻱㻿㻌㼏㼍㼚㻌㼎㼑㻌㼡㼟㼑㼐㻌㼕㼚㻌㼍㼞㼑㼍㼟㻌㼛㼒㻌㼔㼕㼓㼔㻌㼘㼛㼍㼐㻌㼢㼍㼞㼕㼍㼚㼏㼑㻌㼟㼡㼏㼔㻌 㼍㼞㼛㼡㼚㼐㻌㻝㻚㻠㻌㼃㻘㻌㼙㼍㼗㼕㼚㼓㻌㼠㼔㼑㻌㼠㼛㼠㼍㼘㻌㼔㼑㼍㼠㻌㼘㼛㼍㼐㻌㼠㼛㻌㼎㼑㻌㼜㼞㼛㼏㼑㼟㼟㼑㼐㻌㼍㼠㻌 㼍㼟㻌 㼟㼡㼚㼘㼕㼓㼔㼠㻌 㼍㼚㼐㻌 㼣㼕㼚㼐㻌 㼜㼛㼣㼑㼞㻘㻌 㼞㼑㼝㼡㼕㼞㼑㼟㻌 㼒㼞㼑㼝㼡㼑㼚㼠㻌 㼞㼑㼜㼑㼠㼕㼠㼕㼛㼚㻌 㼛㼒㻌 㼠㼔㼑㻌㼣㼔㼛㼘㼑㻌㻝㻡㻌㻷㻌㼐㼛㼙㼍㼕㼚㻌㼠㼛㻌㼎㼑㻌㻡㻚㻣㻌㼃㻚㻌 㼏㼔㼍㼞㼓㼕㼚㼓㻌 㼍㼚㼐㻌 㼐㼕㼟㼏㼔㼍㼞㼓㼕㼚㼓㻘㻌 㼣㼔㼕㼏㼔㻌 㼏㼍㼡㼟㼑㼟㻌 㼠㼔㼑㻌 㻿㻹㻱㻿㻌 㼏㼛㼕㼘㻌 㼠㼛㻌 㻮㼍㼟㼑㼐㻌㼛㼚㻌㼠㼔㼕㼟㻌㼏㼍㼘㼏㼡㼘㼍㼠㼕㼛㼚㻘㻌㼒㼛㼡㼞㻌㼘㼑㼢㼑㼘㼟㻌㼛㼒㻌㼏㼛㼕㼘㻌㼘㼛㼍㼐㻌㼕㼚㻌㻜㼪㻝㻜㻌 㼛㼢㼑㼞㼔㼑㼍㼠㻌㼎㼑㼏㼍㼡㼟㼑㻌㼛㼒㻌㼑㼤㼏㼑㼟㼟㼕㼢㼑㻌㻭㻯㻌㼘㼛㼟㼟㻌㼇㻝㼉㻚㻌 㼃㻌 㼞㼍㼚㼓㼑㼟㻌 㼣㼑㼞㼑㻌 㼡㼟㼑㼐㻌 㼍㼟㻌 㼠㼔㼑㻌 㼏㼛㼚㼐㼕㼠㼕㼛㼚㻌 㼒㼛㼞㻌 㼠㼑㼙㼜㼑㼞㼍㼠㼡㼞㼑㻌 㼀㼛㻌㼛㼢㼑㼞㼏㼛㼙㼑㻌㼠㼔㼕㼟㻌㼜㼞㼛㼎㼘㼑㼙㻘㻌㼠㼔㼑㻌㼟㼥㼟㼠㼑㼙㻌㼣㼍㼟㻌㼐㼑㼟㼕㼓㼚㼑㼐㻌㼍㼟㻌㼍㻌 㼐㼕㼟㼠㼞㼕㼎㼡㼠㼕㼛㼚㻌 㼍㼚㼐㻌 㼠㼔㼑㼞㼙㼍㼘㻌 㼟㼠㼞㼑㼟㼟㻌 㼍㼚㼍㼘㼥㼟㼕㼟㻚㻌 㼃㼔㼑㼚㻌 㼠㼔㼑㻌 㼏㼛㼕㼘㻌 㼘㼛㼍㼐㻌 㼠㼛㼞㼛㼕㼐㼍㼘㻌 㼠㼥㼜㼑㻚㻌 㻮㼥㻌 㼍㼞㼞㼍㼚㼓㼕㼚㼓㻌 㼠㼔㼑㻌 㼟㼡㼜㼑㼞㼏㼛㼚㼐㼡㼏㼠㼕㼢㼑㻌 㼏㼛㼕㼘㼟㻌 㼕㼚㻌 㼍㻌 㼣㼍㼟㻌㻝㻜㻌㼃㻘㻌㼠㼔㼑㻌㼔㼑㼍㼠㻌㼘㼛㼍㼐㻌㼛㼒㻌㼑㼍㼏㼔㻌㼐㼛㼡㼎㼘㼑㻌㼜㼍㼚㼏㼍㼗㼑㻌㼏㼛㼕㼘㻌㼣㼍㼟㻌㻜㻚㻟㻡㻣㻌 㼠㼛㼞㼛㼕㼐㼍㼘㻌 㼒㼛㼞㼙㼍㼠㻘㻌 㼠㼔㼑㻌 㼘㼑㼍㼗㼑㼐㻌 㼙㼍㼓㼚㼑㼠㼕㼏㻌 㼒㼕㼑㼘㼐㻌 㼏㼛㼡㼘㼐㻌 㼎㼑㻌 㼓㼞㼑㼍㼠㼘㼥㻌 㼃㻚㻌 㻭㼟㼟㼡㼙㼕㼚㼓㻌 㼠㼔㼑㻌 㼕㼚㼟㼑㼞㼠㼕㼛㼚㻌 㼛㼒㻌 㼍㼚㻌 㼕㼚㼐㼕㼡㼙㻌 㼟㼔㼑㼑㼠㻌 㼎㼑㼠㼣㼑㼑㼚㻌 㼠㼔㼑㻌 㼞㼑㼐㼡㼏㼑㼐㻘㻌㼍㼚㼐㻌㼠㼔㼑㻌㼜㼑㼞㼜㼑㼚㼐㼕㼏㼡㼘㼍㼞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 㼏㼛㼚㼐㼡㼏㼠㼕㼛㼚㻌㼏㼛㼛㼘㼕㼚㼓㻌㼜㼘㼍㼠㼑㻌㼍㼚㼐㻌㼠㼔㼑㻌㼏㼛㼚㼐㼡㼏㼠㼕㼛㼚㻌㼏㼛㼚㼚㼑㼏㼠㼛㼞㻘㻌㻝㻜㻜㻌 㼟㼡㼜㼑㼞㼏㼛㼚㼐㼡㼏㼠㼕㼚㼓㻌 㼣㼕㼞㼑㻌 㼟㼡㼞㼒㼍㼏㼑㻌 㼣㼍㼟㻌 㼞㼑㼐㼡㼏㼑㼐㻌 㼠㼛㻌 㼟㼕㼓㼚㼕㼒㼕㼏㼍㼚㼠㼘㼥㻌 㼃㻛㻔㼙㻚㻷㻕㻌㼣㼍㼟㻌㼡㼟㼑㼐㻌㼍㼟㻌㼠㼔㼑㻌㼠㼔㼑㼞㼙㼍㼘㻌㼏㼛㼚㼐㼡㼏㼠㼕㼢㼕㼠㼥㻌㼒㼛㼞㻌㼠㼔㼑㻌㼏㼛㼚㼠㼍㼏㼠㻌 㼞㼑㼐㼡㼏㼑㻌 㻭㻯㻌 㼘㼛㼟㼟㻌 㼇㻞㼉㻚㻌 㻴㼛㼣㼑㼢㼑㼞㻘㻌 㼕㼠㻌 㼕㼟㻌 㼐㼕㼒㼒㼕㼏㼡㼘㼠㻌 㼠㼛㻌 㼐㼑㼟㼕㼓㼚㻌 㼛㼞㻌 㼞㼑㼟㼕㼟㼠㼍㼚㼏㼑㻚㻌 㻭㼟㼟㼡㼙㼕㼚㼓㻌 㼑㼜㼛㼤㼥㻌 㼕㼙㼜㼞㼑㼓㼚㼍㼠㼕㼛㼚㻌 㼎㼑㼠㼣㼑㼑㼚㻌 㼠㼔㼑㻌 㼏㼛㼕㼘㻌 㼙㼍㼚㼡㼒㼍㼏㼠㼡㼞㼑㻌㼠㼔㼑㻌㼏㼛㼛㼘㼕㼚㼓㻌㼟㼠㼞㼡㼏㼠㼡㼞㼑㻘㻌㼍㼚㼐㻌㼟㼠㼞㼡㼏㼠㼡㼞㼍㼘㼘㼥㻌㼣㼑㼍㼗㻌㼜㼍㼞㼠㼟㻌 㼏㼛㼛㼘㼕㼚㼓㻌 㼜㼘㼍㼠㼑㻘㻌 㼏㼛㼚㼐㼡㼏㼠㼕㼛㼚㻌 㼏㼛㼚㼚㼑㼏㼠㼛㼞㻌 㼍㼚㼐㻌 㼏㼛㼕㼘㻌 㼟㼡㼞㼒㼍㼏㼑㻘㻌 㻜㻚㻜㻡㻌 㼙㼍㼥㻌㼎㼑㻌㼏㼞㼑㼍㼠㼑㼐㻌㼍㼟㻌㼕㼠㻌㼕㼟㻌㼟㼠㼞㼡㼏㼠㼡㼞㼍㼘㼘㼥㻌㼏㼛㼙㼜㼘㼑㼤㻚㻌㼀㼔㼑㼞㼑㼒㼛㼞㼑㻘㻌㼠㼔㼕㼟㻌 㼃㻛㻔㼙㻚㻷㻕㻌㼣㼍㼟㻌㼡㼟㼑㼐㻌㼍㼟㻌㼠㼔㼑㻌㼠㼔㼑㼞㼙㼍㼘㻌㼏㼛㼚㼐㼡㼏㼠㼕㼢㼕㼠㼥㻚㻌 㻌 㼜㼍㼜㼑㼞㻌 㼕㼚㼠㼑㼚㼐㼟㻌 㼠㼛㻌 㼍㼚㼍㼘㼥㼦㼑㻌 㼠㼔㼑㻌 㼠㼑㼙㼜㼑㼞㼍㼠㼡㼞㼑㻌 㼐㼕㼟㼠㼞㼕㼎㼡㼠㼕㼛㼚㻌 㼍㼚㼐㻌 㻌 㼠㼔㼑㼞㼙㼍㼘㻌 㼟㼠㼞㼑㼟㼟㻌 㼛㼒㻌 㼠㼔㼑㻌 㼐㼑㼟㼕㼓㼚㼑㼐㻌 㼏㼛㼛㼘㼕㼚㼓㻌 㼟㼠㼞㼡㼏㼠㼡㼞㼑㻌 㼕㼚㻌 㼛㼞㼐㼑㼞㻌 㼠㼛㻌 㻠䠊㻾㼑㼟㼡㼘㼠㼟㻌 㼐㼑㼠㼑㼞㼙㼕㼚㼑㻌㼕㼠㼟㻌㼏㼛㼛㼘㼕㼚㼓㻌㼜㼑㼞㼒㼛㼞㼙㼍㼚㼏㼑㻌㼍㼚㼐㻌㼟㼠㼞㼡㼏㼠㼡㼞㼍㼘㻌㼟㼠㼍㼎㼕㼘㼕㼠㼥㻚㻌 㼀㼔㼑㻌 㼠㼑㼙㼜㼑㼞㼍㼠㼡㼞㼑㻌 㼐㼕㼟㼠㼞㼕㼎㼡㼠㼕㼛㼚㻌 㼛㼒㻌 㼠㼔㼑㻌 㼐㼑㼟㼕㼓㼚㼑㼐㻌 㼏㼛㼛㼘㼕㼚㼓㻌 㻌 㼟㼠㼞㼡㼏㼠㼡㼞㼑㻌 㼣㼍㼟㻌 㼢㼑㼞㼥㻌 㼡㼚㼕㼒㼛㼞㼙㻌 㼍㼚㼐㻌 㼠㼔㼑㻌 㼠㼔㼑㼞㼙㼍㼘㻌 㼟㼠㼞㼑㼟㼟㻌 㼍㼚㼍㼘㼥㼟㼕㼟㻌 㻞䠊㻰㼑㼟㼕㼓㼚㻌㼛㼒㻌㼏㼛㼛㼘㼕㼚㼓㻌㼟㼠㼞㼡㼏㼠㼡㼞㼑㻌 㼕㼚㼐㼕㼏㼍㼠㼑㼟㻌 㼠㼔㼍㼠㻌 㼓㼑㼛㼙㼑㼠㼞㼕㼏㻌 㼐㼑㼒㼛㼞㼙㼍㼠㼕㼛㼚㻌 㼍㼚㼐㻌 㼙㼍㼤㼕㼙㼡㼙㻌 㼟㼠㼞㼑㼟㼟㻌 㼀㼔㼑㻌 㻿㻹㻱㻿㻌 㼏㼛㼕㼘㻌 㼕㼟㻌 㼍㼞㼞㼍㼚㼓㼑㼐㻌 㼕㼚㻌 㼍㻌 㼠㼛㼞㼛㼕㼐㼍㼘㻌 㼒㼛㼞㼙㼍㼠㻌 㼣㼕㼠㼔㻌 㼍㼚㻌 㼣㼑㼞㼑㻌㼣㼕㼠㼔㼕㼚㻌㼠㼔㼑㻌㼟㼠㼞㼡㼏㼠㼡㼞㼍㼘㼘㼥㻌㼟㼍㼒㼑㻌㼞㼍㼚㼓㼑㻚㻌 㼕㼚㼚㼑㼞㻌㼞㼍㼐㼕㼡㼟㻌㼛㼒㻌㻝㻢㻞㻌㼙㼙㻌㼍㼚㼐㻌㼍㼚㻌㼛㼡㼠㼑㼞㻌㼞㼍㼐㼕㼡㼟㻌㼛㼒㻌㻡㻥㻥㻌㼙㼙㻌㼛㼒㻌㻞㻤㻌 㻌 㼐㼛㼡㼎㼘㼑㻌㼜㼍㼚㼏㼍㼗㼑㻌㼏㼛㼕㼘㼟㻚㻌㻭㻌㼏㼛㼚㼐㼡㼏㼠㼕㼛㼚㻌㼏㼛㼛㼘㼕㼚㼓㻌㼜㼘㼍㼠㼑㻌㼕㼟㻌㼕㼚㼟㼠㼍㼘㼘㼑㼐㻌 㼍㼠㻌 㼠㼔㼑㻌 㼠㼛㼜㻌 㼍㼚㼐㻌 㼎㼛㼠㼠㼛㼙㻌 㼛㼒㻌 㼠㼔㼑㻌 㼠㼛㼞㼛㼕㼐㼍㼘㻌 㼏㼛㼕㼘㻌 㼠㼛㻌 㼙㼍㼕㼚㼠㼍㼕㼚㻌 㼠㼔㼑㻌 㼠㼛㼞㼛㼕㼐㼍㼘㻌㼟㼔㼍㼜㼑㻌㼍㼚㼐㻌㼏㼛㼛㼘㻌㼠㼔㼑㻌㼏㼛㼕㼘㻚㻌 㼀㼔㼑㻌㼠㼛㼞㼛㼕㼐㼍㼘㻌㼏㼛㼕㼘㻌㼣㼍㼟㻌㼏㼛㼛㼘㼑㼐㻌㼎㼥㻌㼏㼛㼚㼚㼑㼏㼠㼕㼚㼓㻌㼠㼔㼑㻌㼏㼛㼚㼐㼡㼏㼠㼕㼛㼚㻌 㼏㼛㼛㼘㼕㼚㼓㻌 㼜㼘㼍㼠㼑㻌 㼕㼚㼟㼠㼍㼘㼘㼑㼐㻌 㼍㼠㻌 㼠㼔㼑㻌 㼠㼛㼜㻌 㼍㼚㼐㻌 㼎㼛㼠㼠㼛㼙㻌 㼠㼛㻌 㼠㼔㼑㻌 㼏㼛㼕㼘㻌 㼏㼛㼚㼐㼡㼏㼠㼕㼛㼚㻌 㼜㼘㼍㼠㼑㻌 㼏㼛㼚㼠㼍㼏㼠㼕㼚㼓㻌 㼎㼛㼠㼔㻌 㼟㼕㼐㼑㼟㻌 㼛㼒㻌 㼠㼔㼑㻌 㼏㼛㼕㼘㻌 㼣㼕㼠㼔㻌 㼠㼔㼑㻌 㼏㼛㼚㼐㼡㼏㼠㼕㼛㼚㻌 㼏㼛㼚㼚㼑㼏㼠㼛㼞㻌 㼠㼛㻌 㼞㼑㼙㼛㼢㼑㻌 㼠㼔㼑㻌 㼔㼑㼍㼠㻌 㼓㼑㼚㼑㼞㼍㼠㼑㼐㻌 㼎㼥㻌 㼠㼔㼑㻌 㼏㼛㼕㼘㻌㻔㻲㼕㼓㻚㻌㻝㻕㻚㻌㼀㼔㼑㻌㻞㼚㼐㻌㼟㼠㼍㼓㼑㻌㼛㼒㻌㼠㼔㼑㻌㻳㻹㻌㼏㼞㼥㼛㼏㼛㼛㼘㼑㼞㻌㼏㼛㼚㼠㼍㼏㼠㼟㻌㼛㼚㻌 㼠㼔㼑㻌 㼏㼛㼚㼐㼡㼏㼠㼕㼛㼚㻌 㼏㼛㼛㼘㼕㼚㼓㻌 㼜㼘㼍㼠㼑㻌 㼠㼛㻌 㼏㼛㼛㼘㻌 㼠㼔㼑㻌 㼏㼛㼕㼘㻘㻌 㼣㼔㼕㼘㼑㻌 㼠㼔㼑㻌 㻝㼟㼠㻌 㻌 㼟㼠㼍㼓㼑㻌 㼏㼛㼛㼘㼟㻌 㼠㼔㼑㻌 㼏㼡㼞㼞㼑㼚㼠㻌 㼘㼑㼍㼐㻌 㼍㼚㼐㻌 㼞㼍㼐㼕㼍㼠㼕㼛㼚㻌 㼟㼔㼕㼑㼘㼐㻚㻌 㻿㼡㼏㼔㻌 㼍㻌 㻔㼍㻕㻌㼀㼑㼙㼜㼑㼞㼍㼠㼡㼞㼑㻌 㻌 㻌 㻌 㻔㼎㻕㻌㻰㼑㼒㼛㼞㼙㼍㼠㼕㼛㼚㻌 㻌 㻔㼏㻕㻌㼂㼛㼚㻌㻹㼕㼟㼑㼟㻌㼟㼠㼞㼑㼟㼟㻌 㼏㼛㼛㼘㼕㼚㼓㻌 㼟㼠㼞㼡㼏㼠㼡㼞㼑㻌 㼙㼕㼚㼕㼙㼕㼦㼑㼟㻌 㼠㼔㼑㻌 㼏㼛㼛㼘㼕㼚㼓㻌 㼜㼍㼠㼔㻌 㼠㼛㻌 㼕㼚㼏㼞㼑㼍㼟㼑㻌 㻲㼕㼓㻚㻞㻌㻾㼑㼟㼡㼘㼠㼟㻌㼛㼒㻌㼍㼚㼍㼘㼥㼟㼕㼟㻌 㼏㼛㼛㼘㼕㼚㼓㻌㼑㼒㼒㼕㼏㼕㼑㼚㼏㼥㻘㻌㼍㼚㼐㻌㼟㼑㼞㼢㼑㼟㻌㼍㼟㻌㼍㻌㼟㼡㼜㼜㼛㼞㼠㻌㼠㼛㻌㼙㼍㼕㼚㼠㼍㼕㼚㻌㼠㼔㼑㻌㼏㼛㼕㼘㻌 㻌 㼕㼚㻌㼍㻌㼠㼛㼞㼛㼕㼐㼍㼘㻌㼟㼔㼍㼜㼑㻌㼍㼚㼐㻌㼍㼟㻌㼍㻌㼓㼡㼕㼐㼑㻌㼠㼛㻌㼜㼛㼟㼕㼠㼕㼛㼚㻌㼠㼔㼑㻌㼏㼛㼕㼘㻌㼐㼡㼞㼕㼚㼓㻌 㻡䠊㻯㼛㼚㼏㼘㼡㼟㼕㼛㼚㼟㻌 㼍㼟㼟㼑㼙㼎㼘㼥㻚㻌 㼀㼔㼑㻌㼏㼛㼚㼐㼡㼏㼠㼕㼛㼚㻌㼏㼛㼛㼘㼕㼚㼓㻌㼜㼘㼍㼠㼑㻌㼣㼍㼟㻌㼕㼚㼟㼠㼍㼘㼘㼑㼐㻌㼍㼠㻌㼠㼔㼑㻌㼠㼛㼜㻌㼍㼚㼐㻌 㻌 㼎㼛㼠㼠㼛㼙㻌㼛㼒㻌㼠㼔㼑㻌㼠㼛㼞㼛㼕㼐㼍㼘㻌㼏㼛㼕㼘㻌㼠㼛㻌㼙㼍㼕㼚㼠㼍㼕㼚㻌㼠㼔㼑㻌㼠㼛㼞㼛㼕㼐㼍㼘㻌㼟㼔㼍㼜㼑㻌㼍㼚㼐㻌 㼏㼛㼛㼘㻌 㼠㼔㼑㻌 㼏㼛㼕㼘㻚㻌 㻿㼡㼏㼔㻌 㼍㻌 㼏㼛㼛㼘㼕㼚㼓㻌 㼟㼠㼞㼡㼏㼠㼡㼞㼑㻌 㼚㼛㼠㻌 㼛㼚㼘㼥㻌 㼜㼞㼛㼢㼕㼐㼑㼟㻌 㼑㼒㼒㼕㼏㼕㼑㼚㼠㻌 㼏㼛㼛㼘㼕㼚㼓㻌 㼎㼡㼠㻌 㼍㼘㼟㼛㻌 㼍㼏㼠㼟㻌 㼍㼟㻌 㼍㻌 㼟㼡㼜㼜㼛㼞㼠㻌 㼠㼛㻌 㼙㼍㼕㼚㼠㼍㼕㼚㻌 㼠㼔㼑㻌 㼠㼛㼞㼛㼕㼐㼍㼘㻌 㼟㼔㼍㼜㼑㻌 㼍㼚㼐㻌 㼍㼟㻌 㼍㻌 㼓㼡㼕㼐㼑㻌 㼠㼛㻌 㼜㼛㼟㼕㼠㼕㼛㼚㻌 㼠㼔㼑㻌 㼏㼛㼕㼘㻌 㼐㼡㼞㼕㼚㼓㻌 㼍㼟㼟㼑㼙㼎㼘㼥㻚㻌 㼀㼛㻌㼐㼑㼟㼕㼓㼚㻌㼍㻌㼙㼛㼞㼑㻌㼞㼑㼘㼕㼍㼎㼘㼑㻌㼏㼛㼛㼘㼕㼚㼓㻌㼟㼥㼟㼠㼑㼙㻘㻌㼒㼡㼞㼠㼔㼑㼞㻌㼟㼠㼡㼐㼕㼑㼟㻌 㼛㼚㻌㼠㼔㼑㻌㼠㼔㼑㼞㼙㼍㼘㻌㼘㼛㼍㼐㻌㼍㼚㼍㼘㼥㼟㼕㼟㻌㼛㼒㻌㼏㼔㼍㼞㼓㼕㼚㼓㻌㼍㼚㼐㻌㼐㼕㼟㼏㼔㼍㼞㼓㼕㼚㼓㻘㻌㼍㼚㼐㻌 㼟㼠㼞㼑㼟㼟㻌㼍㼚㼍㼘㼥㼟㼕㼟㻌㼛㼒㻌㼠㼔㼑㻌㼙㼍㼓㼚㼑㼠㼕㼏㻌㼒㼕㼑㼘㼐㻌㼣㼕㼘㼘㻌㼎㼑㻌㼚㼑㼏㼑㼟㼟㼍㼞㼥㻚㻌 㻌 㻌 㻲㼕㼓㻚㻝㻌㻯㼛㼚㼐㼡㼏㼠㼕㼛㼚㻌㼏㼛㼕㼘㻌㼏㼛㼛㼘㼕㼚㼓㻌㼟㼠㼞㼡㼏㼠㼡㼞㼑㻌 㻭㼏㼗㼚㼛㼣㼘㼑㼐㼓㼑㼙㼑㼚㼠㻌 㻌 㻌 㻌 㼀㼔㼕㼟㻌㼣㼛㼞㼗㻌㼣㼍㼟㻌㼏㼍㼞㼞㼕㼑㼐㻌㼛㼡㼠㻌㼡㼚㼐㼑㼞㻌㼠㼔㼑㻌㼟㼡㼜㼜㼛㼞㼠㻌㼛㼒㻌㼠㼔㼑㻌㻹㼕㼚㼕㼟㼠㼞㼥㻌 㻟䠊㻭㼚㼍㼘㼥㼟㼕㼟㻌 㼛㼒㻌㻯㼛㼙㼙㼑㼞㼏㼑㻘㻌㻵㼚㼐㼡㼟㼠㼞㼥㻌㼍㼚㼐㻌㻱㼚㼑㼞㼓㼥㻘㻌㻷㼛㼞㼑㼍㻚㻌 㼀㼔㼑㻌 㼖㼛㼕㼚㼠㻌 㼞㼑㼟㼕㼟㼠㼍㼚㼏㼑㻌 㼛㼒㻌 㼠㼔㼑㻌 㼐㼛㼡㼎㼘㼑㻌 㼜㼍㼚㼏㼍㼗㼑㻌 㼏㼛㼕㼘㻌 㼣㼍㼟㻌 㻌 㼙㼑㼍㼟㼡㼞㼑㼐㻌㼠㼛㻌㼎㼑㻌㻝㻞㻜㻌㼚䃈㻘㻌㼣㼔㼕㼘㼑㻌㼠㼔㼑㻌㼏㼛㼚㼠㼍㼏㼠㻌㼞㼑㼟㼕㼟㼠㼍㼚㼏㼑㻌㼎㼑㼠㼣㼑㼑㼚㻌 㻾㼑㼒㼑㼞㼑㼚㼏㼑㼟㻌 㼠㼔㼑㻌㼠㼛㼞㼛㼕㼐㼍㼘㻌㼟㼔㼍㼜㼑㼐㻌㼐㼛㼡㼎㼘㼑㻌㼜㼍㼚㼏㼍㼗㼑㻌㼏㼛㼕㼘㼟㻌㼣㼍㼟㻌㼙㼑㼍㼟㼡㼞㼑㼐㻌㼠㼛㻌㼎㼑㻌 㻝㻚㻌㻴㻚㻌㻷㻚㻌㼅㼑㼛㼙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㻌㼂㼛㼘㻚㻌㻝㻤㻌 㻝㻞㻜㻌 㼚䃈㻘㻌 㼣㼔㼕㼘㼑㻌 㼠㼔㼑㻌 㼏㼛㼚㼠㼍㼏㼠㻌 㼞㼑㼟㼕㼟㼠㼍㼚㼏㼑㻌 㼎㼑㼠㼣㼑㼑㼚㻌 㼠㼔㼑㻌 㼠㼛㼞㼛㼕㼐㼍㼘㻌 㻔㻞㻜㻜㻤㻕㻌㼜㻚㻌㻣㻠㻟㻌 㼟㼔㼍㼜㼑㼐㻌 㼐㼛㼡㼎㼘㼑㻌 㼜㼍㼚㼏㼍㼗㼑㻌 㼏㼛㼕㼘㼟㻌 㼣㼍㼟㻌 㼙㼑㼍㼟㼡㼞㼑㼐㻌 㼠㼛㻌 㼎㼑㻌 㻡㻜㻌 㼚䃈㻚㻌 㻞㻚㻌㻷㻚㻌㻼㻚㻌㻶㼡㼑㼚㼓㼟㼠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㻌㼂㼛㼘㻚㻌㻝㻞㻌 㻮㼍㼟㼑㼐㻌㼛㼚㻌㼠㼔㼑㼟㼑㻌㼙㼑㼍㼟㼡㼞㼑㼙㼑㼚㼠㼟㻘㻌㼠㼔㼑㻌㼕㼚㼠㼑㼞㼚㼍㼘㻌㼔㼑㼍㼠㻌㼓㼑㼚㼑㼞㼍㼠㼑㼐㻌㼎㼥㻌 㻔㻞㻜㻜㻞㻕㻌㼜㻚㻌㻣㻡㻟㻌 㼠㼔㼑㻌 㼏㼛㼕㼘㻌 㼣㼍㼟㻌 㼏㼍㼘㼏㼡㼘㼍㼠㼑㼐㻌 㼠㼛㻌 㼎㼑㻌 㼍㼞㼛㼡㼚㼐㻌 㻠㻚㻟㻌 㼃㻌 㼍㼠㻌 㼍㼚㻌 㼛㼜㼑㼞㼍㼠㼕㼚㼓㻌 ― 111 ― 第83回 2010年度秋季低温工学・超電導学会 1P-p15 冷却システム (1) ಖ෭䝅䝇䝔䝮䛻䛚䛡䜛㧗 ㉸ఏᑟ䝁䜲䝹䛾ఏ⇕ゎᯒ㻌 㻴㼑㼍㼠㻌㼠㼞㼍㼚㼟㼒㼑㼞㻌㼍㼚㼍㼘㼥㼟㼕㼟㻌㼛㼚㻌㻴㼀㻿㻌㼏㼛㼕㼘㻌㼛㼒㻌㼏㼛㼘㼐㻌㼟㼠㼛㼞㼍㼓㼑㻌㼟㼥㼟㼠㼑㼙㻌 Ᏻ⸨㻌 ὒ㻘ᒸᮧ㻌 ဴ⮳䠄ᮾᕤ䠅㻧㛗ᔱ㻌 ㈼㻘Ỉ㔝㻌 ඞಇ䠄㕲㐨⥲◊䠅㻌 㻌 㻭㻺㻰㻻㻌㼅㼛㼟㼡㼗㼑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 㻺㻭㻳㻭㻿㻴㻵㻹㻭㻌㻷㼑㼚㻘㻌㻹㻵㼆㼁㻺㻻㻌㻷㼍㼠㼟㼡㼠㼛㼟㼔㼕㻌㻔㻾㼀㻾㻵㻕㻌 㻱㻙㼙㼍㼕㼘㻦㻌㼍㼚㼐㼛㻚㼥㻚㼍㼑㻬㼙㻚㼠㼕㼠㼑㼏㼔㻚㼍㼏㻚㼖㼜㻌 㻝䠊䛿䛨䜑䛻㻌 ㉸㟁ᑟ䝬䜾䝛䝑䝖䛿෭༷䛩䜛䛣䛸䛜ᚲ㡲䛷䛒䜛䛜䚸☢Ẽᾋ ୖᘧิ㌴䛾䜘䛖䛺⛣ືయ䛻㉸㟁ᑟ☢▼䜢ᦚ㍕䛩䜛ሙྜ䛻䛿 ෭༷䝅䝇䝔䝮䛾㔜㔞䜔ᾘ㈝㟁ຊ䜢పῶ䛩䜛䛣䛸䛜᭷ຠ䛷䛒䜛䚹 䛭䛣䛷☢Ẽᾋୖᘧิ㌴䛜䜟䜜䛺䛔ኪ㛫䛻෭ᶵ䛷䝬䜾䝛 䝑䝖䛾෭༷䜢⾜䛔䚸ิ㌴䛾㐠⾜䛻䛿㍍㔞䛾䛯䜑䛻෭ᶵ 䜢ษ䜚㞳䛩䚸䛸䛔䛖䜘䛖䛺෭ᶵ䛺䛧䛷㛗㛫ᴟప 䛻ಖ䛴䛣 䛸䛾䛷䛝䜛ಖ෭䝅䝇䝔䝮䛾᳨ウ䜢⾜䛳䛶䛔䜛㼇㻝㼉䚹䛣䜜䜎䛷ᡃ䚻 䛜⏝䛔䛯ᐇ㦂⨨䛷䛿 㻴㼀㻿 䝁䜲䝹䜢ᶍᨃ䛩䜛䜒䛾䛸䛧䛶㖡䛾 䝤䝻䝑䜽䜢⏝䛔䛶䛝䛯䚹ᑗ᮶ⓗ䛻䛿㖡䝤䝻䝑䜽䛷䛿䛺䛟 㻴㼀㻿 䝁 䜲䝹䜢⏝䛔䛶ヲ⣽䛺 ᗘศᕸ䛾᳨ウ䛺䛹䜢䛩䜛ᚲせ䛜䛒䜛䛜䚸 ᅇ䛿䛭䛾๓ẁ㝵䛸䛧䛶 㻞 ḟඖ䛾ఏ⇕䝅䝭䝳䝺䞊䝅䝵䞁䛻䜘䛳 䛶 㻲㼕㼓㻚㻝 䛻♧䛥䜜䜛䜘䛖䛺䝺䞊䝇䝖䝷䝑䜽ᆺ䝁䜲䝹䛾 ᗘศᕸ䜔 ᗘ䛾㛫ኚ䜢ぢ✚䜒䜚䚸䜘䜚ᐇᶵ䛻㏆䛔≧ែ䛷䛾ゎᯒ䜢 ⾜䛳䛯䚹㻌 㠀ᐃᖖ≧ែ䛻䛧䛶 㻡 㛫⤒㐣䛧䛯ゎᯒ䛾⤖ᯝ㻔㻲㼕㼓㻚㻡㻕䜢ぢ䜛䛸 ୍㒊䛾䝉䝹䛜 㻡㻜㻷 䛻㐩䛧䛶䛔䜛䚹䛣䛾⤖ᯝ䜘䜚䚸䝁䜲䝹䛾ᚄ᪉ ྥ䛾⇕ఏᑟ䜢⿵ᙉ䛩䜛ᚲせ䛜䛒䜛䛣䛸䛜䜟䛛䛳䛯䚹ᮏ◊✲䛿 ᅜᅵ㏻┬䛾ᅜᗜ⿵ຓ㔠䜢ཷ䛡䛶ᐇ䛧䛯䚹㻌 ཧ⪃ᩥ⊩㻌 㻝㻚 㻷㻚㻌㻹㼕㼦㼡㼚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㻣㻥㻌 㻔㻞㻜㻜㻤㻕㻌㼜㻚㻝㻟㻥㻌 㻞䠊㻴㼀㻿 䝁䜲䝹䛾ィ⟬䝰䝕䝹㻌 䛣䜜䜎䛷䛾ᐇ㦂䛷⏝䛔䛯㉸㟁ᑟ䝁䜲䝹ᶍᨃ䛾㖡䝤䝻䝑䜽䛿 㠀ᖖ䛻⇕ఏᑟ⋡䛜Ⰻ䛔↓㓟⣲㖡䛜⏝䛔䜙䜜䛶䛔䛯䚹䜘䛳䛶 ⇕䛾ධ※䛜㖡䝤䝻䝑䜽䛾ୖ㒊䛻೫䛳䛶䛔䛶䜒㖡䝤䝻䝑䜽䛾 ᗘศᕸ䛿ୖ㒊䛛䜙ୗ㒊䜎䛷䜋䜌ᆒ୍䛷䛒䛳䛯䚹䛧䛛䛧 㻴㼀㻿 䝁䜲䝹䛾ሙྜ䛿⥺ᮦ䛾⇕ఏᑟ⋡䛻␗᪉ᛶ䛜䛒䜛䛯䜑䛣䛾䜘䛖 䛺ᆒ୍䛺 ᗘศᕸ䜢ᣢ䛯䛺䛔䛣䛸䛜ண䛥䜜䜛䚹䛭䛣䛷ᅇ 䛾ィ⟬䛷䛿 㻲㼕㼓㻚㻞 䛻♧䛩⥺ᮦ䝰䝕䝹䜢ᐃ䛧䛶䚸㻲㼕㼓㻚㻞 䛾䃚㼤 ᪉ྥ䛻䛿㖡䚸䃚㼥 ᪉ྥ䛻䛿 㼅㻮㻯㻻 䛸䝝䝇䝔䝻䜲䛸䜶䝫䜻䝅ᶞ⬡ 䛾≀ᛶ್䜢⏝䛔䛶ఏ⇕ィ⟬䜢⾜䛳䛯䚹䜎䛯䝺䞊䝇䝖䝷䝑䜽ᆺ䛾 䝁䜲䝹䛿 㻲㼕㼓㻚㻟 䛻♧䛩䜘䛖䛻㛗᪉ᙧ䛸㏆ఝ䛧䛯䚹䜎䛯ቃ⏺᮲௳ 䛸䛧䛶䛿䚸ᕥୖ䛸ྑୖ䛾䝉䝹䛜෭ᶵ䛸⧅䛜䛳䛶䛔䜛䛸䛧䛶 㻞㻜㻷 䛻ᅛᐃ䛧䛯䚹⇕䛾ධ䛻䛴䛔䛶䛿䚸ୖẁ䛾ᕥ䛛䜙 㻠 ␒┠ 䛸ྑ䛛䜙 㻠 ␒┠䛾䝉䝹䛻䜅䛟ᑕ䝅䞊䝹䝗ᯈ㻔㻡㻜㻷 ᅛᐃ㻕䛸䝁䜲䝹 䜢⧅䛠Ⲵ㔜ᨭᣢᮦ䛛䜙䛾⇕ఏᑟ䜢⟬ධ䛧䛯䚹䜎䛯䛶䛾䝉䝹 䛻䜅䛟ᑕ䝅䞊䝹䝗ᯈ䛛䜙䛾䜅䛟ᑕ⇕䜢⟬ධ䛧䛯䚹䛭䛧䛶 㻲㼕㼓㻚㻟 䛾ᕥୖ䛾䝉䝹䛜 㻲㼕㼓㻠 䛸 㻲㼕㼓㻚㻡 䛾䜾䝷䝣䛾ᕥ䛾ዟ䛾䝥䝻䝑䝖Ⅼ䛻 ┦ᙜ䛩䜛䜘䛖䛻ィ⟬⤖ᯝ䜢䜎䛸䜑䛯䚹㻌 㻟䠊ゎᯒ⤖ᯝ䛸䜎䛸䜑㻌 ᮏ◊✲䛷䛿෭ᶵ䜢ษ䜚㞳䛧䛯ᚋ䚸㻴㼀㻿 䝁䜲䝹䜢ᶍᨃ䛧䛶 䛔䜛 㻝㻜㻚㻟㼗㼓 䛾㖡䝤䝻䝑䜽䛾 ᗘ䛜 㻞㻜㻷 䛛䜙 㻡㻜㻷 䜎䛷ୖ᪼䛩䜛 㛫䜢ಖ෭㛫䛸ᐃ䜑䛶䛔䜛䚹䛭䛧䛶ᅇ䛾ィ⟬䛷䛿㖡䝤䝻 䝑䜽䛸䝁䜲䝹䛾ಖ෭㛫䜢ẚ䜉䜛䛯䜑䛻䚸 ᗘ䛜 㻞㻜㻷 䛛䜙 㻡㻜㻷 䜎䛷ୖ᪼䛩䜛䛾䛻ᚲせ䛺⇕㔞䛜ྠ➼䛻䛺䜛䜘䛖䛻䝁䜲䝹䛾㉁ 㔞䜢 㻞㻝㻚㻠㼗㼓 䛸Ỵᐃ䛧䛯䚹㻌 ಖ෭㛫䜢ィ⟬䛩䜛๓䛾ึᮇ᮲௳䛸䛺䜛䚸෭ᶵ䛻⧅䛜 䛳䛯ᐃᖖ≧ែ䛷䛾 ᗘศᕸ䜢 㻲㼕㼓㻚㻠 䛻♧䛩䚹䛣䛾⣔䛿ᾋୖᘧ 㕲㐨⏝䜢ᐃ䛧䛶䛔䜛䛯䜑䚸Ⲵ㔜ᨭᣢᮦ䛛䜙䛾⇕ධ䛜ከ䜑 䛻ぢ✚䜒䜙䜜䛶䛔䜛䚹䛭䛾䛯䜑 㻞㻜㻷 䛾ሙྜ䛿䚸య䛾䝉䝹䛻 ධ䜛䜅䛟ᑕ䜘䜚䜒୍㒊䛾䝉䝹䛻䛧䛛ධ䜙䛺䛔⇕ఏᑟ䛾᪉䛜 㻞㻞 ಸ䜒䛝䛟䚸 ᗘศᕸ䛾೫䜚䛜⏕䛨䜔䛩䛔䚹≉䛻䝰䝕䝹䛾 㼅 ㍈᪉ྥ㻔䝁䜲䝹䛾ᚄ᪉ྥ㻕䛷䛿 㻟㻷 䜋䛹䛾 ᗘᕪ䛜䛴䛝 㻴㼀㻿 䝁 䜲䝹䛾⇕ఏᑟ䛾␗᪉ᛶ䛜ᫎ䛥䜜䛶䛔䜛䚹䜎䛯෭ᶵ䜢ྲྀ䜚 እ䛧䛯㠀ᐃᖖ≧ែ䛷䛿䚸㖡䝤䝻䝑䜽䛾ሙྜ䛾ಖ෭㛫䛿 㻢㻚㻡 㛫䛸ぢ✚䜒䜙䜜䛶䛔䛯䚹䛧䛛䛧 㻴㼀㻿 䝁䜲䝹䜢෭ᶵ䛛䜙እ䛧䚸 ― 112 ― 㻲㼕㼓㻚㻝㻌㻵㼙㼍㼓㼑㻌㼛㼒㻌㼠㼔㼑㻌㼚㼑㼣㻌㼑㼤㼜㼑㼞㼕㼙㼑㼚㼠㼍㼘㻌㼍㼜㼜㼍㼞㼍㼠㼡㼟 㻲㼕㼓㻚㻞㻌㻹㼛㼐㼑㼘㻌㼛㼒㻌㼠㼔㼑㻌㻴㼀㻿㻌㼣㼕㼞㼑㻌 㻲㼕㼓㻚㻟㻌㻹㼛㼐㼑㼘㻌㼒㼛㼞㻌㼚㼡㼙㼑㼞㼕㼏㼍㼘㻌㼏㼍㼘㼏㼡㼘㼍㼠㼕㼛㼚㻌 㻲㼕㼓㻚㻠㻌㻿㼠㼑㼍㼐㼥㻌㼟㼠㼍㼠㼑㻌㼠㼑㼙㼜㼑㼞㼍㼠㼡㼞㼑㻌㼐㼕㼟㼠㼞㼕㼎㼡㼠㼕㼛㼚㻌㼕㼚㻌㼍㻌㼏㼛㼕㼘㻌 㻲㼕㼓㻚㻡㻌㼁㼚㼟㼠㼑㼍㼐㼥㻌㼟㼠㼍㼠㼑㻌㼠㼑㼙㼜㼑㼞㼍㼠㼡㼞㼑㻌㼐㼕㼟㼠㼞㼕㼎㼡㼠㼕㼛㼚㻌 㻌 㼕㼚㻌㼍㻌㼏㼛㼕㼘 㼍㼒㼠㼑㼞㻌㼒㼕㼢㼑㻌㼔㼛㼡㼞㼟㻌 第83回 2010年度秋季低温工学・超電導学会 1P-p16 冷却システム (1) ㉸ఏᑟ㏦㟁⏝㛗㊥㞳᩿⇕㓄⟶䛾┿✵Ẽ㻌 㻱㼢㼍㼏㼡㼍㼠㼕㼛㼚㻌㼛㼒㻌㼘㼛㼚㼓㻌㼏㼞㼥㼛㼓㼑㼚㼕㼏㻌㼜㼕㼜㼑㼟㻌㼒㼛㼞㻌㼟㼡㼜㼑㼞㼏㼛㼚㼐㼡㼏㼠㼕㼚㼓㻌㼜㼛㼣㼑㼞㻌㼠㼞㼍㼚㼟㼙㼕㼟㼟㼕㼛㼚㻌 㻌 Ώ㑓㻌 ⿱ᩥ䠈㎶㻌 ㄔ䠈Ἑཎ㻌 ᩄ⏨䠈ᒣཱྀ㻌 సኴ㑻䠄୰㒊䠅㻌 㼃㻭㼀㻭㻺㻭㻮㻱㻌㻴㼕㼞㼛㼒㼡㼙㼕㻘㻌㻴㻭㻹㻭㻮㻱㻌㻹㼍㼗㼛㼠㼛㻘㻌㻷㻭㼃㻭㻴㻭㻾㻭㻌㼀㼛㼟㼔㼕㼛㻘㻌㼅㻭㻹㻭㻳㼁㻯㻴㻵㻌㻿㼍㼠㼍㼞㼛㼡㻌㻔㻯㼔㼡㼎㼡㻌㼁㼚㼕㼢㻚㻕㻌 㻱㻙㼙㼍㼕㼘㻦㻌㼔㼋㼣㼍㼠㼍㼚㼍㼎㼑㻬㼕㼟㼏㻚㼏㼔㼡㼎㼡㻚㼍㼏㻚㼖㼜㻌 㻌 㻌 㻝䠊䛿䛨䜑䛻㻌 ㉸ఏᑟ㏦㟁⏝┿✵᩿⇕㓄⟶ࡣࠊ┿✵ᕤᏛⓗࡣ⣽ࡃ 㛗࠸⟶ࡋ࡚ࡽ࠼ࡿࡇࡀ࡛ࡁࡿࠋࡑࡢẼ㛫ࡣ⟶ ࡢࢥࣥࢲࢡࢱࣥࢫࠊᨺฟ࢞ࢫ㏿ᗘࠊẼ⏝࠸ࡿ࣏ࣥࣉ ࡢᛶ⬟ࡁ࡞ᙳ㡪ࢆཷࡅࡿࠋ≉㛗㊥㞳㏦㟁⏝࠸ࡿ ሙྜࠊሙྜࡼࡗ࡚ࡣࠊᴟࡵ࡚㛗࠸Ẽ㛫ࡀᚲせ࡞ ࡿࠋ୰㒊Ꮫࡢ P ㉸ఏᑟ┤ὶ㏦㟁ᐇ㦂⨨㻔㻯㻭㻿㻱㻾㻞㻕 ࡢ᩿⇕㓄⟶ࡢ┿✵ᘬࡁࡽᚓࡽࢀࡓࢹ࣮ࢱࢆඖࠊ⌮ㄽ ⓗ࡞᳨ウࢆ⾜࠺ࡇ࡛ࠊ㉸ఏᑟ㏦㟁ࡢ᩿⇕㓄⟶ࡢẼ ᚲせࡉࢀࡿ┿✵ࢩࢫࢸ࣒ࡘ࠸࡚㆟ㄽࡍࡿࠋ 㻌 㻞䠊┿✵Ẽ䝅䝇䝔䝮㻌 ᅗ 㻝 䛻 㻯㻭㻿㻱㻾㻞 䛾᩿⇕㓄⟶ཬ䜃┿✵䝅䝇䝔䝮䛾␎ᅗ䜢 ♧䛩䚹㻯㻭㻿㻱㻾㻞 䛾᩿⇕㓄⟶䛿 㻸 ≧䛻㓄⨨䛥䜜䛶䛔䜛䚹᩿⇕㓄 ⟶䜢┿✵ᘬ䛝䛩䜛䛯䜑䛻୍ྎ䛾䝯䜹䝙䜹䝹䝤䞊䝇䝍䞊䝫䞁䝥 )LJ7KHVFKHPDWLFSLFWXUHRI&$6(53*3*3* 䛸୍ྎ䛾䝍䞊䝪ศᏊ䝫䞁䝥䛜ഛ䛘䛡䜙䜜䛶䛚䜚䚸䛭䜜䛮䜜 3*DUH3LUDQLJDXJHVDQG,*LVDQLRQL]DWLRQJDXJH㻌 㻝㻼㼍 ⛬ᗘ௨ୖ䛾ప┿✵ഃ䛸䚸䛭䜜௨ୗ䛾㧗┿✵ഃ䜢ᢸᙜ䛩 㻌 䜛䚹᩿⇕㓄⟶䛾➃䛿㞄䜚ྜ䛳䛶䛔䜛䛯䜑䚸㛛ᆺ䛾㓄⟶䛷᥋⥆ 䛧䚸䝫䞁䝥䛿䛭䛾㓄⟶䛻ྲྀ䛡䜙䜜䛶䛔䜛䠄ᅗ 㻞䠅䚹ᚑ䛳䛶䚸䛣 䛾Ẽ᪉ἲ䛿㛗㊥㞳䛾㓄⟶䜢⪃䛘䛯ሙྜ䛻 㻞㻜㻜㼙 ẖ䛻䝫䞁 䝥䜢タ⨨䛧䛶䛔䜛≧ἣ䛻ᑐᛂ䛩䜛䚹┿✵䛾≧ែ䜢 ᐃ䛩䜛䛯 䜑䛻᩿⇕㓄⟶䛻䛿 㻠 䛴䛾䝢䝷䝙䞊┿✵ィ䛸 㻝 䛴䛾㟁㞳┿✵ ィ䛜ഛ䛘䛡䜙䜜䛶䛔䜛䚹㻌 㻌 㻟䠊Ẽᐇ㦂㻌 ᅗ 㻟 䛻䝍䞊䝪ศᏊ䝫䞁䝥䛷Ẽ䛧䛶䛔䜛㏵୰䛾Ẽ᭤ ⥺䜢♧䛩䚹㛫䛜⤒䛴䛻䛴䜜ᚎ䚻䛻┿✵䛜Ⰻ䛟䛺䛳䛶䛔䜛䛜䚸 ㏵୰䛻⒗≧䛾┒䜚ୖ䛜䜚䛜ぢ䜙䜜䜛䚹䛣䛾㛫ᖏ䛿᪥୰䛻ᑐ ᛂ䛧䛶䛚䜚䚸䛣䜜䛿䚸㻯㻭㻿㻱㻾㻞 䛾᩿⇕㓄⟶䛾䜋䛸䜣䛹䛜ᒇእ䛻 タ⨨䛥䜜䛶䛔䜛䛯䜑䚸᪥ග䛻䜘䜚⇕䛫䜙䜜䛯᩿⇕㓄⟶䛾እ⟶ 䛛䜙䛾ᨺฟ䜺䝇䛜ቑຍ䛧䛶䛔䜛䛯䜑䛷䛒䜛䛸⪃䛘䜙䜜䜛䚹┿✵ )LJ 7KH SXPS V\VWHP RI &$6(5 2QH PHFKDQLFDO ᗘ䛿䝫䞁䝥䛛䜙㞳䜜䜛䛻ᚑ䛳䛶ᝏ䛟䛺䛳䛶䛔䜛䚹䛣䜜䛿ศᏊὶ ERRVWHUSXPSDQGRQHWXUERPROHFXODUSXPSDUHXVHGIRU ᇦ䛾㓄⟶䛾䝁䞁䝎䜽䝍䞁䝇䛜ᑠ䛥䛔䛯䜑䛻ᅽຊ໙㓄䛜⏕䛨䛶 WKHHYDFXDWLRQRIZKROHWKHV\VWHP 䛔䜛䛣䛸䛻䜘䜛䚹㻌 ┿✵ᗘ䛾ኚ䛿㠀ᖖ䛻⦆䜔䛛䛷䛒䜛䛜䚸䛣䜜䛿Ẽ㏿ ᗘ䛸ᨺฟ䜺䝇㏿ᗘ䛜㔮䜚ྜ䛳䛯≧ែ䛷䛒䜚䚸ᨺฟ䜺䝇㏿ᗘ䛜 ⦆䜔䛛䛻ῶᑡ䛧䛶䛔䜛䛯䜑䛷䛒䜛䛸⪃䛘䜙䜜䜛䚹䛣䛾䛣䛸䛛䜙 ┿✵Ẽ䜢᪩䛟⾜䛖䛯䜑䛻䛿ᨺฟ䜺䝇㏿ᗘ䜢ᑠ䛥䛟䛩䜛ᚲせ 䛜䛒䜛䚹㏻ᖖ䛾┿✵ᶵჾ䛾ሙྜ䚸ᶵჾ䜢⇕䛩䜛䝧䞊䜻䞁䜾䛜 ⾜䜟䜜䜛䛜䚸᩿⇕㓄⟶䛿ඖ䜘䜚᩿⇕䛷䛒䜚䚸እ䛛䜙ෆ⟶䜢ᬮ䜑 䜛䛾䛿ᐜ᫆䛷䛿䛺䛔䚹ཪ䚸㛗㊥㞳㏦㟁䜢ᐃ䛧䛯ሙྜ䚸ᒇእ 䛷㓄⟶䛻䝠䞊䝍䞊䜢ᕳ䛟䛸䛔䛖䛣䛸䜒⌧ᐇⓗ䛷䛿䛺䛔䚹ᚑ䛳䛶䚸 ᩿⇕㓄⟶ᘓタ䛾㝿䛻䛿ᨺฟ䜺䝇䜢ቑ䜔䛥䛺䛔䜘䛖ὀព䛧䛯ྲྀ 䜚ᢅ䛔䛜ᚲせ䛷䛒䜛䛸⪃䛘䜙䜜䜛䚹㻌 ᅗ 㻟 䛷ᚓ䜙䜜䛯Ẽ᭤⥺䛛䜙䚸㻯㻭㻿㻱㻾㻞 䛾᩿⇕㓄⟶䛾ᐇ ຠⓗ䛺䝁䞁䝎䜽䝍䞁䝇䛸ᨺฟ䜺䝇㏿ᗘ䛾㛫౫Ꮡᛶ䜢ồ䜑䛯䚹 ⤖ᯝ䛿䚸䝁䞁䝎䜽䝍䞁䝇䛿 㻝㼙 䛒䛯䜚䛻⟬䛧䛶 㻟㻜㻜㼘䞉㼙㻛㼟 䛷䛒 䜚䚸ᨺฟ䜺䝇㏿ᗘ䛿 㻝㼙㻞 䛒䛯䜚䛻⟬䛧䛶 㻢㻚㻤㼠㻙㻜㻚㻡㻼㼍䞉㼘㻛㻔㼟䞉㼙㻞㻕 )LJ7KHWLPHHYROXWLRQRIWKHYDFXXPHYDFXDWHGE\ 䛷䛒䛳䛯䚹ᨺฟ䜺䝇㏿ᗘ䛺䛹䛿㓄⟶䛾≧ែ䛻౫Ꮡ䛩䜛䛯䜑䚸 WKHWXUERPROHFXODUSXPS㻌 䛣䜜䜙䛾್䛿୍⯡ฟ᮶䛺䛔䚹䛧䛛䛧䚸䛣䛾್䛜ᚓ䜙䜜䜜䜀䚸 㻯㻭㻿㻱㻾㻞 䛾᩿⇕㓄⟶䜢ᣑᙇ䛧䛯ሙྜ䛾Ẽ≧ែ䜢ィ⟬䛻䜘䜚 ண 䛩䜛䛣䛸䛜䛷䛝䜛䚹䛣䛾⤖ᯝ䜘䜚䚸┿✵᩿⇕䛜༑ศ䛻ᚓ䜙 䜜䜛 㻜㻚㻜㻡㻼㼍 䛾┿✵ᗘ䛻฿㐩䛩䜛䜎䛷䛻 㻠㻝 ᪥䛛䛛䜛䛸ぢ✚䜒 䜛䛣䛸䛜ฟ᮶䜛䚹㻌 ― 113 ― 第83回 2010年度秋季低温工学・超電導学会 1P-p17 冷却システム (1) ┤ὶ㉸ఏᑟ䜿䞊䝤䝹⏝᩿⇕㔜⟶䛻䛚䛡䜛⇕ධ㔞䛾⢭ᐦ ᐃ㻌 㻴㼕㼓㼔㻌㼍㼏㼏㼡㼞㼍㼏㼥㻌㼙㼑㼍㼟㼡㼞㼑㼙㼑㼚㼠㻌㼛㼒㻌㼔㼑㼍㼠㻌㼘㼑㼍㼗㻌㼛㼚㻌㼏㼞㼥㼛㼓㼑㼚㼕㼏㻌㼜㼕㼜㼑㻌㼒㼛㼞㻌㻰㻯㻌㼟㼡㼜㼑㼞㼏㼛㼚㼐㼡㼏㼠㼕㼚㼓㻌㼏㼍㼎㼘㼑㻌 /1OHYHO>PP@ 㻌 ᮡ㔝㻌 ៅ䠈㎶㻌 ㄔ䠈Ώ㑓㻌 ⿱ᩥ䠈Ἑཎ㻌 ᩄ⏨䠈ᒣཱྀ㻌 సኴ㑻䠄୰㒊Ꮫ䠅䠗▼㯮㻌 ᗣⱥ䠈᪂ྖ㻌 ಟ䠄㻶㻲㻱 䝇䝏䞊䝹䠅㻌 㻿㼁㻳㻵㻺㻻㻌㻹㼍㼗㼛㼠㼛䠈㻴㻭㻹㻭㻮㻱㻌㻹㼍㼗㼛㼠㼛䠈㼃㻭㼀㻭㻺㻭㻮㻱㻌㻴㼕㼞㼛㼒㼡㼙㼕䠈㻷㻭㼃㻭㻴㻭㻾㻭㻌㼀㼛㼟㼔㼕㼛䠈㼅㻭㻹㻭㻳㼁㻯㻴㻵㻌㻿㼍㼠㼍㼞㼛㼡㻌㻔㻯㼔㼡㼎㼡㻌㼁㼚㼕㼢㻚㻕㻧㻌 㻵㻿㻴㻵㻳㼁㻾㻻㻌㼅㼍㼟㼡㼔㼕㼐㼑䠈㻿㻴㻵㻺㻿㻴㻵㻌㻻㼟㼍㼙㼡㻌㻔㻶㻲㻱㻌㻿㼠㼑㼑㼘㻕㻌 㻱㻙㼙㼍㼕㼘㻦㻌㼠㼑㻜㻥㻜㻜㻥㻬㼕㼟㼏㻚㼏㼔㼡㼎㼡㻚㼍㼏㻚㼖㼜㻌 㻌 㻝䠊䛿䛨䜑䛻㻌 ୰㒊Ꮫ䛷䛿㧗 ㉸ఏᑟయ䜢㏦㟁䜿䞊䝤䝹䛻⏝䛔䛯┤ὶ ㉸ఏᑟ㏦㟁䝅䝇䝔䝮䛾ᐇ⏝䛻ྥ䛡䛶䚸◊✲䜢⾜䛳䛶䛔䜛䚹 ┤ὶ㉸ఏᑟ㏦㟁䝅䝇䝔䝮䜢ᩘⓒ 㼗㼙 つᶍ䛾㊥㞳䛷⏝䛧䛯䛸 䛝䛾ຠ⋡䛜ᚑ᮶䛾㖡䜿䞊䝤䝹䜢⏝䛧䛯┤ὶ㏦㟁䝅䝇䝔䝮䜢 ୖᅇ䜛䛯䜑䛻䛿䚸᩿⇕㔜⟶䛷䛾⇕ධ㔞䜢 㻜㻚㻡㻌 㼃㻛㼙 ௨ୗ 䛻ᢚ䛘䜛ᚲせ䛜䛒䜛䚹䛭䛾䛯䜑䛻䚸᩿⇕㔜⟶䛾⇕㍽ᑕ䝅䞊 䝹䝗䛾⡆⣲䜢ᅗ䜛◊✲䜢䚸⦪⨨䛝ᆺ䛾⇕ධ㔞 ᐃ⨨䜢 ⏝䛔䛶䚸㛗䛥 㻝㻚㻢㻡㼙 䛾᩿⇕㔜⟶䛷⾜䛳䛶䛝䛯䚹䛭䛾⤖ᯝ䚸 እ⟶ 㻝㻡㻜㻭㻔䃥㻝㻢㻡㻚㻞㼙㼙㻕䚸ෆ⟶ 㻤㻜㻭㻔䃥㻤㻥㻚㻝㼙㼙㻕䛻䛚䛔䛶㍽ᑕ ⇕ධ㔞䜢 㻜㻚㻡㼃㻛㼙 ⛬ᗘ䜎䛷పῶ䛷䛝䜛䛣䛸䛜☜ㄆ䛷䛝䛯㼇㻝㼉䚹 䛭䛣䛷䚸䛣䜜䜙䛾䜘䛖䛺ప⇕㔞䛾㍽ᑕ⇕䜢䛥䜙䛻㧗⢭ᗘ䛷 ᐃ 䛩䜛䛯䜑䛻䚸᪂䛯䛻⢭ᐦ⇕ධ㔞 ᐃ⨨䜢タィ䞉〇స䛧㼇㻞㼉䚸 ᐃ䜢⾜䛳䛶䛔䜛䚹ᮏሗ࿌䛷䛿䚸⢭ᐦ ᐃ䜢⾜䛖䛯䜑䛾ᡭ㡰 䜢♧䛩䛸䛸䜒䛻䚸⇕ධ㔞 ᐃ䛾⤖ᯝ䛻䛴䛔䛶㏙䜉䜛䚹㻌 㻌 㻞䠊 ᐃ⨨㻌 ᪂䛯䛻〇స䛧䛯⢭ᐦ⇕ධ㔞 ᐃ⨨䛾ᴫ␎ᅗ䜢 㻲㼕㼓㻚㻝 䛻♧䛩䚹㛗䛥 㻟㻜㻜㼙㼙䚸ෆᚄ 䃥㻝㻥㼙㼙 䛾ᾮ㠃 ᐃ㒊䛻䛚䛡䜛ᾮ 㻲㼕㼓㻚㻝㻌 㻭㻌 㻿㼏㼔㼑㼙㼍㼠㼕㼏㻌 㻰㼕㼍㼓㼞㼍㼙㻌 㼛㼒㻌 㻺㼑㼣㻌 㼀㼑㼟㼠㻌 㻮㼑㼚㼏㼔㻌 㼒㼛㼞㻌 㻴㼑㼍㼠㻌 㠃䛾㛫ኚ䛛䜙⇕ධ㔞䜢 ᐃ䛧䛶䛔䜛䚹䛣䛾 ᐃ⨨䛾 㻸㼑㼍㼗㻌㻹㼑㼍㼟㼡㼞㼑㼙㼑㼚㼠㻌㼛㼚㻌㻯㼞㼥㼛㼓㼑㼚㼕㼏㻌㻼㼕㼜㼑㼟㻚㻌 ᆶ┤㒊䛿⿕ ᐃ⟶௨እ䛛䜙䛾⇕ධ䛜ᴟຊᑡ䛺䛟䛺䜛䜘䛖䛻 タィ䛥䜜䛶䛔䜛䚹ᅇ䛾 ᐃ䛷䛿䚸⿕ ᐃ⟶䛻䛿䚸እ⟶䛜 㻌 㻞㻜㻜㻭㻔䃥㻞㻝㻢㻚㻟㼙㼙㻕 䛾 ள 㖄 䝯 䝑 䜻 㗰 ⟶ 䚸 ෆ ⟶ 䛜 እ ᚄ =QFRDWHG 㻌 㻡㻜㻭㻔䃥㻢㻜㻚㻡㼙㼙㻕䚸㛗䛥 㻞㻚㻤㻞㼙 䛾 㻿㼁㻿 ⟶䚸ள㖄䝯䝑䜻 㻿㼁㻿 ⟶䜢 6860/,OD\HUV 㻌 686 ⏝䛧䛯䚹䛥䜙䛻䚸ෆ⟶䛻 㻹㻸㻵 䜢 㻝㻜 ᒙᕳ䛔䛯≧ែ䛷䜒 ᐃ䜢 =QFRDWHG0/,OD\HUV 㻌 ⾜䛳䛯䚹㻌 㻌 㻌 㻌 㻟䠊⇕ධ㔞 ᐃ㻌 㻌 ྛෆ⟶䛻䛴䛔䛶 ᐃ䛧䛯 㻸㻺㻞 ᾮ㠃䛾㛫ኚ䜢 㻲㼕㼓㻚㻞 䛻 㻌 ♧䛩䚹⿕ ᐃ⟶䛜䛺䛔≧ែ䛷䛾⇕ධ㔞䛿 㻜㻚㻞㻡㼃 䛸䛺䜚䚸๓ 㻌 ⨨䛾 㻝㻚㻞㼃㼇㻝㼉䛛䜙⣙ 㻤㻜㻑పῶ䛩䜛䛣䛸䛜䛷䛝䛯䚹㻲㼕㼓㻚㻞 䛾⤖ 㻌 ᯝ䛛䜙䝇䝔䝣䜯䞁䞉䝪䝹䝒䝬䞁䛾ἲ๎䜢⏝䛔䛶⟬ฟ䛧䛯⿕ ᐃ 㻌 ⟶䛾⇕ධ㔞䛾ᐇ ್䜔༢㛗䛥䛒䛯䜚䛾⇕ධ㔞䜢 㻌 㼀㼍㼎㼘㼑㻚㻝 䛻♧䛩䚹⤖ᯝ䛸䛧䛶㏻ᖖ䛾 㻿㼁㻿 ⟶䛻ẚ䜉䚸ள㖄䝯䝑䜻 㻌 㻿㼁㻿 ⟶䛿⇕ධ㔞䜢⣙ 㻜㻚㻠㼃㻛㼙 పῶ䛩䜛䛣䛸䛜䛷䛝䛯䚹䛥䜙䛻䚸 㻌 7LPH>KPV@ 㻹㻸㻵 䜢 㻝㻜 ᒙ⏝䛩䜛䛣䛸䛷┠ᶆ䛷䛒䜛 㻜㻚㻡㼃㻛㼙 䜘䜚ᑡ䛺䛔 㻌 㻲㼕㼓㻚㻞㻌㻱㼢㼍㼜㼛㼞㼍㼠㼕㼛㼚㻌㼠㼕㼙㼑㻌㼛㼒㻌㻸㻺㻞㻌㼛㼚㻌㻺㼑㼣㻌㼀㼑㼟㼠㻌㻮㼑㼚㼏㼔㻚㻌 㻜㻚㻞㻜㼃㻛㼙 䛸䛔䛖್䜢ᚓ䜛䛣䛸䛜䛷䛝䛯䚹㻌 㻌 ⌧ᅾ䚸䛣䜜䜙䛾⤖ᯝ䛻ᑐ䛩䜛 ᐃ⢭ᗘ䛻䛴䛔䛶᳨ウ䜢⾜䛳 㻌 䛶䛔䜛䚹㻌 እ⟶ ෆ⟶ ⇕ධ㔞 ⇕ධ㔞 㻌 㻔እᚄ䠖㻞㻝㻢㻚㻟㼙㼙㻕 㻔እᚄ䠖㻢㻜㻚㻡㼙㼙㻕 㼇㼃㼉 㼇㼃㻛㼙㼉 㻌 㻿㼁㻿⟶ 㻟㻚㻟㻜 㻝㻚㻝㻞 㻌 ཧ⪃ᩥ⊩㻌 ள㖄䝯䝑䜻㻿㼁㻿⟶ 㻞㻚㻝㻠 㻜㻚㻣㻞 㻝㻚㻌 㼅㻚㻌 㻺㼍㼟㼡㻘㻌 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 㻣㻥㻌 ள㖄䝯䝑䜻㗰⟶ 㻿㼁㻿⟶䠇㻹㻸㻵㻝㻜ᒙ 㻜㻚㻤㻢 㻜㻚㻞㻞 㻔㻞㻜㻜㻤㻕㻌㼜㻚㻥㻣㻌 ள㖄䝯䝑䜻㻿㼁㻿⟶ 㻞㻚㻌㻹㻚㻌㻴㼍㼙㼍㼎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㻥㻌 㻜㻚㻣㻤 㻜㻚㻞㻜 䠇㻹㻸㻵㻝㻜ᒙ 㻔㻞㻜㻜㻤㻕㻌㼜㻚㻢㻜 ― 114 ― 㼀㼍㼎㼘㼑㻚㻝㻌㻴㼑㼍㼠㻌㼘㼑㼍㼗㻌㼙㼑㼍㼟㼡㼞㼑㼙㼑㼚㼠㻌㼛㼚㻌㻺㼑㼣㻌㼀㼑㼟㼠㻌㻮㼑㼚㼏㼔㻚㻌 第83回 2010年度秋季低温工学・超電導学会 1P-p18 磁気応用 ⢊⢏య䛾Ẽᒙᦙ㏦䜢⏝䛧䛯㧗໙㓄☢Ẽศ㞳䝅䝇䝔䝮䛻䛚䛡䜛㻌 ⢏Ꮚ㛫┦స⏝ホ౯㻌 㻱㼢㼍㼘㼡㼍㼠㼕㼛㼚㻌㼛㼒㻌㻵㼚㼠㼑㼞㼍㼏㼠㼕㼛㼚㻌㼎㼑㼠㼣㼑㼑㼚㻌㻼㼍㼞㼠㼕㼏㼘㼑㼟㻌㼒㼛㼞㻌㻴㼕㼓㼔㻌㻳㼞㼍㼐㼕㼑㼚㼠㻌㻹㼍㼓㼚㼑㼠㼕㼏㻌㻿㼑㼜㼍㼞㼍㼠㼕㼛㼚㻌 㻌 㼛㼒㻌㻼㼚㼑㼡㼙㼍㼠㼕㼏㻌㻯㼛㼚㼢㼑㼥㼑㼐㻌㻼㼛㼣㼐㼑㼞㻌㻼㼞㼛㼐㼡㼏㼠㼟㻌 ༓ᕝᾈᖹ㻘㻌 ୰♸ᶞ㻘㻌 ୕ᓥྐே㻘㻌 ⛅ᒣᗤᏊ㻘㻌 すᔱⱱᏹ㻔㜰㻕㻌 㻿㻱㻺㻷㻭㼃㻭㻌㻷㼛㼔㼑㼕䠈㻌 㻺㻭㻷㻭㻵㻌㼅㼡㼗㼕㻘㻌㻹㻵㻿㻴㻵㻹㻭㻌㻲㼡㼙㼕㼔㼕㼠㼛㻘㻌㻭㻷㻵㼅㻭㻹㻭㻌㼅㼛㼗㼛㻘㻌㻺㻵㻿㻴㻵㻶㻵㻹㻭㻌㻿㼔㼕㼓㼑㼔㼕㼞㼛㻌㻔㻻㼟㼍㼗㼍㻌㼁㼚㼕㼢㻚㻕㻌 㻱㻙㼙㼍㼕㼘㻦㻌㼟㼑㼚㼗㼍㼣㼍㻬㼝㼎㻚㼟㼑㼑㻚㼑㼚㼓㻚㼛㼟㼍㼗㼍㻙㼡㻚㼍㼏㻚㼖㼜㻌 㻌 㻝䠊䛿䛨䜑䛻㻌 ⋡䜢ྥୖ䛥䛫䜛䛻䛿䠈⢏Ꮚ㛫┦స⏝䛜䛹䛾⛬ᗘാ䛔䛶䛔䜛 㣗ရ䞉⸆ရ䞉ᕤᴗ〇ရ䛺䛹䛾⢊య〇ရ〇㐀䝷䜲䞁䛻䛚䛔䛶䠈 䛾䛛䜢ᢕᥱ䛧䠈䛭䜜䛻ᛂ䛨䛶ὶ㏿䜢ไᚚ䛩䜛ᚲせ䛜䛒䜛䛸⪃ 㔠ᒓ☻⪖⢊䛺䛹䛾ᙉ☢ᛶ⣧≀䛾ΰධ䛜ၥ㢟䛸䛺䛳䛶䛔䜛䠊 䛘䠈㻭㻲㻹䜢⏝䛔䛶ᐇ㦂ヨᩱ䛾⢏Ꮚ㛫┦స⏝䜢 ᐃ䛧䛯䠊㻌 䛭䛣䛷䠈ศ㞳䞉ᅇᢏ⾡䛸䛧䛶䛾ᘧ 㻴㻳㻹㻿㻔㼔㼕㼓㼔㻌 㼓㼞㼍㼐㼕㼑㼚㼠㻌 㻌 㼙㼍㼓㼚㼑㼠㼕㼏㻌 㼟㼑㼜㼍㼞㼍㼠㼕㼛㼚㻕ἲ䛻䛴䛔䛶◊✲䜢⾜䛳䛯䠊ᘧ 㻴㻳㻹㻿 㻟䠊⢏Ꮚ㛫┦స⏝䛾ホ౯㻌 䛻䛚䛔䛶䛿⢊య䛾จ㞟ཬ䜃ỿ╔䛻䜘䜛☢Ẽ䝣䜱䝹䝍䛾㛢ሰ䛾 ฎ⌮ᑐ㇟⢏Ꮚ䛾╔ຊ䜢 㻭㻲㻹 䝁䞁䝍䜽䝖䝰䞊䝗䛻䜘䜚 ᐃ ゎᾘ䛜᭱䛾ㄢ㢟䛷䛒䛳䛯䛜䠈䛣䜜䜎䛷䛾◊✲䛻䜘䜚䠈⢊య 䛧䛯䠈ᮏ◊✲䛷䛿䚸䝁䝻䜲䝗䝥䝹䞊䝤 㻭㻲㻹 ἲ㼇㻞㼉䜢⏝䛔䛶䚸㻭㻲㻹 䛾Ᏻᜥゅ䜢⪃៖䛧䛯䝣䜱䝹䝍タィ䜢⾜䛖䛣䛸䛷㛢ሰ䛾పῶ䛻 䜹䞁䝏䝺䝞䞊䝏䝑䝥䛻᥋╔䛥䜜䛯⢏Ꮚ䛸䚸䝃䞁䝥䝹䝇䝔䞊䝆 ᡂຌ䛧䛶䛔䜛㼇㻝㼉䠊ᮏ◊✲䛷䛿䛥䜙䛻᰿ᮏⓗ䛺㛢ሰ䛾ゎᾘ䜢≺ ୖ䛾ᑟ㟁ᛶ䝔䞊䝥ୖ䛻⾲㠃䛜ᖹᆠ䛻䛺䜛䜘䛖䛻ᅛᐃ䛧䛯⢏Ꮚ 䛔䠈᪂䛯䛺⢊య䛾ᦙ㏦ᙧែ䛸䛧䛶⢊⢏యẼᒙᦙ㏦䜢⏝䛧䛯 䛸䛾㛫䛻ാ䛟ຊ䛾ኚ䜢 ᐃ䛧䛯䠊 ᐃ䛻⏝䛔䛯 㻿㼁㻿 ⢏Ꮚ䜢 ☢Ẽศ㞳ἲ䜢⏝䛔䠈⢏Ꮚ㛫┦స⏝䛾ほⅬ䛛䜙⢏Ꮚ䛾จ㞟 㻝 ಶ᥋╔䛧䛯䜹䞁䝏䝺䝞䞊䛾┿䜢 㻲㼕㼓㻚㻌㻞 䛻♧䛩䠊㻌 䜢ゎᾘ䛩䜛᪉ἲ䛻䛴䛔䛶᳨ウ䛧䛯䠊㻌 㻌 㻲㼕㼓㻚㻌 㻟 䛻䝣䜷䞊䝇䜹䞊䝤䛾䜢♧䛩䠊╔ຊ ᐃ䛾⤖ᯝ䠈 㻌 㻿㼁㻿㻙䜰䝹䝭䝘㛫䛾╔ຊ䛿 㻞㻟㻚㻣㼚㻺 䛷䛒䜚䠈㻿㼁㻿㻙䝅䝸䜹㛫䛾 㻞䠊☢Ẽศ㞳ᐇ㦂㻌 ╔ຊ䛿 㻥㻚㻣㻝㼚㻺 䛷䛒䛳䛯䠊䛣䜜䜙䛾⤖ᯝ䛿䠈䛭䜜䛮䜜䛾⢊య ᐇ㦂ヨᩱ䛸䛧䛶䠈จ㞟ᛶ䛾␗䛺䜛✀㢮䛾⢊యヨᩱ䜢‽ 䛾จ㞟ᛶ䛸ᑐᛂ䛧䛶䛔䜛䠊㻌 ഛ䛧䛯䠊㻿㼍㼙㼜㼘㼑㻌 㻭 䛸䛧䛶㧗䛔จ㞟ᛶ䜢᭷䛩䜛䜰䝹䝭䝘ᚤ⢏Ꮚ 㻌 㻔ᖹᆒ⢏Ꮚᚄ 㻡㻌 䃛㼙㻕䛻ᙉ☢ᛶ 㻿㼁㻿 䝡䞊䝈㻔⢏ᚄ 㻟㻡㻌 䃛㼙㻘㻌 㻠䠊䜎䛸䜑㻌 㻿㼁㻿㻟㻜㻠㻕䜢 㻜㻚㻝㼣㼠㻑䛾ྜ䛷ΰධ䛥䛫䛯䜒䛾䠈㻿㼍㼙㼜㼘㼑㻌㻮 䛸䛧䛶ẚ จ㞟ᛶ䛾␗䛺䜛 㻞 ✀䛾⢊య䛛䜙䛾☢Ẽศ㞳ᐇ㦂䛻䜘䜛ศ ㍑ⓗจ㞟ᛶ䛾ప䛔䝅䝸䜹ᚤ⢏Ꮚ㻔ᖹᆒ⢏Ꮚᚄ 㻞㻜㻌 䃛㼙㻕䛻ᙉ☢ 㞳⋡䛾㐪䛔䛻䛴䛔䛶᳨ウ䛩䜛䛯䜑䠈㻭㻲㻹 䜢⏝䛔䛶⢏Ꮚ㛫┦ ᛶ 㻿㼁㻿 䝡䞊䝈䜢ΰධ䛥䛫䛯䜒䛾䜢⏝ព䛧䛯䠊㻌 స⏝䛾ホ౯䜢⾜䛳䛯䠊䛭䛾⤖ᯝ䠈⢏Ꮚ㛫䛾╔ຊ䛿⢊య ศ㞳ᐇ㦂䜢⾜䛖䛯䜑䛻タィ䛧䛯⢊⢏య☢Ẽศ㞳⨨䜢 㻲㼕㼓㻚㻌 䛾จ㞟ᛶ䛸ᑐᛂ䛧䛶䛚䜚䠈⢏Ꮚ䛻ാ䛟ຊ䜢☢Ẽຊ䠚䝗䝷䝑䜾ຊ 㻝 䛻♧䛩䠊ᮏ⨨䛿ὶືᒙ䛸☢Ẽศ㞳ᒙ䛛䜙䛺䜛䠊ὶືᒙ䛷 䠚╔ຊ䛸䛩䜛䛣䛸䛷จ㞟䜢ゎᾘ䛧䠈ศ㞳⋡䜢㧗䜑䜛䛣䛸䛜䛷 䛿䠈⢊యヨᩱཬ䜃ὶື፹㉁䝨䝺䝑䝖䜢ᅽ⦰✵Ẽ䛻䜘䜚ὶື 䛝䜛䛸⪃䛘䜙䜜䜛䠊ᚋ䛿䛣䜜䜙䛾⤖ᯝ䛻ᇶ䛵䛔䛶䠈⢊య䛾≉ 䛥䛫䠈ヨᩱ䛾ศᩓᛶ䜢ྥୖ䛥䛫䛶䛔䜛䠊☢Ẽศ㞳ᒙ䛷䛿䠈㻞㻚㻜㻌 ᛶ䛻ᛂ䛨䛯ศ㞳᮲௳䛾タᐃ䜢⾜䛳䛶䛔䛟ணᐃ䛷䛒䜛䠊㻌 㼀 䛾እ㒊☢ሙ୰䛻 㻿㼁㻿㻠㻟㻜 〇☢Ẽ䝣䜱䝹䝍䛜タ⨨䛥䜜䛶䛚䜚䠈 ศᩓ䛧䛯ヨᩱ䛜䝣䜱䝹䝍䜢㏻㐣䛩䜛㝿䛻ᙉ☢ᛶ⢏Ꮚ䛾䜏䛜㑅 ᢥⓗ䛻ᤕᤊ䛥䜜䜛ᵓ㐀䛸䛺䛳䛶䛔䜛䠊㻌 20ʅm 25ʅm 㻌 㻲㼕㼓㻚㻌㻞㻌㻿㻱㻹㻌㼜㼔㼛㼠㼛㼓㼞㼍㼜㼔㻌㼛㼒㻌㼠㼔㼑㻌㼏㼍㼚㼠㼕㼘㼑㼢㼑㼞㻌㼠㼕㼜㻌㼍㼠㼠㼍㼏㼔㼑㼐㻌㻿㼁㻿㻌 㼜㼍㼞㼠㼕㼏㼘㼑㻚㻌 㻌 㻲㼕㼓㻚㻌㻝㻌㻭㻌㼟㼏㼔㼑㼙㼍㼠㼕㼏㻌㼐㼕㼍㼓㼞㼍㼙㻌㼛㼒㻌㼙㼍㼓㼚㼑㼠㼕㼏㻌㼟㼑㼜㼍㼞㼍㼠㼕㼛㼚㻌㼍㼜㼜㼍㼞㼍㼠㼡㼟㻌 㼡㼟㼕㼚㼓㻌㼜㼚㼑㼡㼙㼍㼠㼕㼏㻌㼏㼛㼚㼢㼑㼥㼕㼚㼓㻌㼙㼑㼠㼔㼛㼐㻚㻌 㻌 ᮏ⨨䛾☢Ẽศ㞳ᛶ⬟ホ౯䛾䛯䜑䛻䠈㧗ឤᗘᑠᆺ☢Ẽኳ ⛗䜢⏝䛔䛶ศ㞳๓ᚋ䛾ヨᩱ䛾㉁㔞☢ ᐃ䜢⾜䛔䠈⣧≀ 䛾ศ㞳⋡䜢ồ䜑䛯䚹จ㞟ᛶ䛾␗䛺䜛㻿㼍㼙㼜㼘㼑㻌 㻭㻘㻌 㻮䛔䛪䜜䛻ᑐ 䛧 䛶 䜒 㧗 䛔 ศ 㞳 ⋡ 䜢 ᚓ 䜛 䛣 䛸 䛜 䛷 䛝 䛯 䠊 㻿㼍㼙㼜㼘㼑㻌 㻭 䛿 㻥㻟㻑 䠈 㻿㼍㼙㼜㼘㼑㻌 㻮䛜㻝㻜㻜㻑䛷䛒䛳䛯䠊㻿㼍㼙㼜㼘㼑㻌 㻭䛻䛚䛔䛶䛿䜰䝹䝭䝘ᚤ⢏ Ꮚ䛾จ㞟ᛶ䛜㧗䛔䛯䜑䠈ヨᩱ䛜ὶືᒙ䛷༑ศ䛻ศᩓ䛥䜜䛪䠈 จ㞟య䛸䛧䛶ཷ䛡䜛䝗䝷䝑䜾ຊ䛜䛝䛟䛺䜚䠈☢Ẽ䝣䜱䝹䝍䞊䛻 ྾ᘬ䛥䜜䛺䛛䛳䛯ྍ⬟ᛶ䛜⪃䛘䜙䜜䜛䠊ศᩓᛶ䜢㧗䜑䛶ศ㞳 㻌 $GKHVLRQIRUFH>Q1@ Flow 㻌 =D[LVGLVSODFHPHQW>QP@ 㻲㼕㼓㻚㻌㻟㻌㻲㼛㼞㼏㼑㻌㼏㼡㼞㼢㼑㻌㼓㼞㼍㼜㼔㻌㼛㼒㻌㻿㼁㻿㻙㻭㼘㼡㼙㼕㼚㼍㻌㻔㼔㼡㼙㼕㼐㼕㼠㼥㻦㻡㻢㻑㻕㻌 㻌 ཧ⪃ᩥ⊩㻌 㼇㻝㼉㻌 㼅㻚㻌 㻺㼍㼗㼍㼕㻘㻌 㻲㻚㻌 㻹㼕㼟㼔㼕㼙㼍㻘㻌 㼅㻚㻌 㻭㼗㼕㼥㼍㼙㼍㻘㻌 㻿㻚㻌 㻺㼕㼟㼔㼕㼖㼕㼙㼍㻌 䇾㻰㼑㼢㼑㼘㼛㼜㼙㼑㼚㼠㻌㼛㼒㻌㻴㼕㼓㼔㻌㻳㼞㼍㼐㼕㼑㼚㼠㻌㻹㼍㼓㼚㼑㼠㼕㼏㻌㻿㼑㼜㼍㼞㼍㼠㼕㼛㼚㻌㻿㼥㼟㼠㼑㼙㻌 㼡㼚㼐㼑㼞㻌㻰㼞㼥㻌㻯㼛㼚㼐㼕㼠㼕㼛㼚䇿㻚㻌 㻼㼔㼥㼟㼕㼏㼍㻌㻯㻌㻵㼚㻌㼜㼞㼑㼟㼟㻚㻌 㼇㻞㼉㻌㻹㻚㻌㼀㼍㼚㼍㼗㼍㻘㻌㻹㻚㻌㻷㼛㼙㼍㼍㼓㼍㼠㼍㻘㻌㻹㻚㻌㼀㼟㼡㼗㼍㼐㼍㻘㻌㼍㼚㼐㻌㻴㻚㻌㻷㼍㼙㼕㼥㼍㻘㻌 䇾㻱㼢㼍㼘㼡㼍㼠㼕㼛㼚㻌㼛㼒㻌㼠㼔㼑㻌㼜㼍㼞㼠㼕㼏㼘㼑㻙㼜㼍㼞㼠㼕㼏㼘㼑㻌㼕㼚㼠㼑㼞㼍㼏㼠㼕㼛㼚㼟㻌㼕㼚㻌㼍㻌㼠㼛㼚㼑㼞㻌㼎㼥㻌 㼏㼛㼘㼘㼛㼕㼐㻌㼜㼞㼛㼎㼑㻌㻭㻲㻹㻚䇿㻌㻼㼛㼣㼐㼑㼞㻌㼀㼑㼏㼔㼚㼛㼘㼛㼓㼥㻚㻌 ― 115 ― 第83回 2010年度秋季低温工学・超電導学会 1P-p19 磁気応用 ☢ሙ୰䝍䞁䝟䜽㉁⤖ᬗ⏕ᡂ⨨䛾䝝䜲䝇䝹䞊䝥䝑䝖㻌 +LJK7KURXJKSXW3URWHLQ&U\VWDO)RUPDWLRQ6\VWHPXVLQJ0DJQHWLF)LHOGV 㻌 ⏣ ோࠊᘅ⏣᠇அࠊᒸ⏣⚽ᙪࠊᯇᮏ┿㸦≀ᮦᶵᵓ㸧㸹Ύཎඖ㍜ࠊฟᏕ༤㸦ΎཎගᏛ㸧㸹 ⏣அ ඃࠊ୰ᮧ㢧ࠊሯ῟ࠊ⃝㔝㢗Ꮚ㸦ᮾ㸧㸹㕥ᮌᴿ୍㑻ࠊ᯽ᮌ❧ᕭ㸦ࡢ⣲㸧㸹႐⏣ᏊࠊᮏಟᏕ㸦ி㸧 :$'$+LWRVKL+,527$1RUL\XNL2.$'$+LGHKLNR0$76802726KLQML1,06.,<2+$5$0RWRVXNH2'(7DNDKLUR.L\RKDUD 2SWLFV7$12.85$0DVDUX1$.$085$$NLUD2+768.$-XQ6$:$12<RULNR87RN\R 68=8.,(LLFKLUR.$6+,:$*,7DWVXNL$MLQRPRWR.,7$$NLNR1802721REXWDND.\RWR8 (PDLO:$'$+LWRVKL#QLPVJRMS 㻌 㻝䠊䛿䛨䜑䛻㻌 䝍䞁䝟䜽㉁䛿⸆ရ䜔ゐ፹䛾㛤Ⓨ䛻Ỵᐃⓗ䛺ᙺ䜢ᯝ䛯䛩 ⏕య≀㉁⩌䛷䛒䜚䚸䛭䛾◊✲䛿㧗㱋♫䜔ᆅ⌫⎔ቃ䛻 䛝䛺䜲䞁䝟䜽䝖䜢䛘䜛䚹䝍䞁䝟䜽㉁䛾⢭☜䛺 㼄 ⥺ᵓ㐀ゎᯒ䛻 䛿㧗ရ䛺⤖ᬗ䛜ᚲせ䛸䛺䜛䛜䚸⌧≧䛷䛿㧗ရ༢⤖ᬗ䜢 ຠ⋡ⓗ䛻ᚓ䜛䛣䛸䛿ᅔ㞴䛷䛒䜚䚸㛤Ⓨ䛾䝪䝖䝹䝛䝑䜽䛸䛺䛳䛶 䛔䜛䚹ᮏ䝥䝻䝆䜵䜽䝖䛷䛿䚸ᙉ䛔☢ሙ䜢⏝䛔䛶䚸㧗ရ䛺䝍䞁 䝟䜽㉁⤖ᬗ䜢㧗ຠ⋡䛻⏕ᡂ䛩䜛䝅䝇䝔䝮䛾㛤Ⓨ䜢┠ⓗ䛸䛧䛶 䛔䜛䚹㻌 㻌 㻞䠊◊✲䝥䝻䝆䜵䜽䝖䛾ᴫせ㻌 㼄 ⥺ᵓ㐀ゎᯒ䛻⏝䛩䜛䝍䞁䝟䜽㉁⤖ᬗ䜢㧗ရ䛩䜛 ᡭẁ䛸䛧䛶䚸㔜ຊ䛻㉳ᅉ䛩䜛ᑐὶ䛜ᢚไ䛥䜜䜛ᚤᑠ㔜ຊ⎔ቃ 䛜ὀ┠䛥䜜䛶䛔䜛㻌 㼇㻝㼉䚹ᮏ◊✲䛷䛿䚸㧗ရ䛸䛸䜒䛻䚸䝅䝇 䝔䝮䛾䝝䜲䝇䝹䞊䝥䝑䝖䛻㔜Ⅼ䜢⨨䛝䚸㻲㼕㼓㻚㻝 䛻♧䛧䛯䜘䛖䛺 䛂㧗ຠ⋡䞉㧗ရ䝍䞁䝟䜽㉁⤖ᬗ⏕ᡂ䝅䝇䝔䝮䛃䜢㛤Ⓨ䛩䜛䚹䛣 䛾䝅䝇䝔䝮䛿䚸௨ୗ䛾 㻟 せ⣲䛛䜙ᵓᡂ䛥䜜䜛䚹㻌 䐟㧗☢ẼຊⓎ⏕⏝㉸ఏᑟ䝬䜾䝛䝑䝖㻌 ≉Ṧ䛺ᵓ㐀䛾㉸㟁ᑟ䝬䜾䝛䝑䝖䚹㻝㻢㼀 䜢Ⓨ⏕䛩䜛䝁䜲䝹 䠄㻺㼎㼀㼕㻗㻺㼎㻟㻿㼚䠅䛚䜘䜃䛣䜜䛸㏫ྥ䛝䛾☢ሙ䜢Ⓨ⏕䛩䜛䝁䜲䝹 䠄㻺㼎㻟㻿㼚䠅䛻䜘䜚㧗☢ሙ䛸㧗☢ሙ໙㓄䜢Ⓨ⏕䛧䛶㔜ຊ䜢┦ẅ䛧䚸 㻲㼕㼓㻚㻝㻌㻴㼕㼓㼔㻌㼠㼔㼞㼛㼡㼓㼔㼜㼡㼠㻌㼜㼞㼛㼠㼑㼕㼚㻌㼏㼞㼥㼟㼠㼍㼘㼘㼕㼦㼍㼠㼕㼛㼚㻌㼟㼥㼟㼠㼑㼙㻚㻌 ☢ᛶయ䛷䛒䜛䝍䞁䝟䜽㉁⤖ᬗ䛾☢Ẽᾋᥭ䜢ྍ⬟䛻䛩䜛䚹㻌 䐠ගᏛ䝥䝻䞊䝤㻌 ⤖ᬗ㐣⛬䜢䝬䜾䝛䝑䝖䛾እ䛛䜙 㼕㼚㻙㼟㼕㼠㼡 䛻ほᐹ䛷䛝䜛 㻟 ḟ ඖไᚚ䛾ගᏛ⣔䚹䝍䞁䝟䜽㉁⤖ᬗ䜢⏕ᡂ䛩䜛ሙྜ䚸⤖ᬗ䛾≧ ែ䜢☜ㄆ䛩䜛䛯䜑䛻䚸㢖⦾䛻⤖ᬗ⨨䛛䜙ྲྀ䜚ฟ䛧䛶ほᐹ 䛧䛺䛡䜜䜀䛺䜙䛺䛔䚹ᮏ䝥䝻䞊䝤䛿䚸⤖ᬗ㐣⛬䛷ほᐹ䜢୰ ᩿䛩䜛䛣䛸䛺䛟䚸☢ሙ୰䛷┤᥋ほᐹ䛩䜛䛣䛸䜢ྍ⬟䛻䛩䜛䚹㻌 䐡⤖ᬗ䝥䝺䞊䝖㻌 䝝䜲䝇䝹䞊䝥䝑䝖䜢ᐇ⌧䛩䜛䛯䜑䛾⤖ᬗ䝥䝺䞊䝖䚹ከ䛟䛾 ␗䛺䜛᮲௳䛷ከᩘ䛾⤖ᬗ䜢୍ᗘ䛻⏕ᡂ䛷䛝䜛䛸䛸䜒䛻䚸┤᥋ ほᐹ䛜ྍ⬟䛺᪂䛧䛔䝕䝄䜲䞁䛾⤖ᬗ䝥䝺䞊䝖䜢㛤Ⓨ䛩䜛䚹㻌 㻲㼕㼓㻚㻞㻌㻔㼂㻝㻙㻭㼀㻼㼍㼟㼑㻕㻌 㼏㼞㼥㼟㼠㼍㼘㻚 䐟䛻䜘䛳䛶㧗ရ䝍䞁䝟䜽㉁⤖ᬗ䛾⏕ᡂ䛜ᐜ᫆䛻䛺䜚䚸䐠 䛸䐡䛻䜘䛳䛶ᚑ᮶䜘䜚䜒ຠ⋡䛾㧗䛔䝍䞁䝟䜽㉁⤖ᬗ⏕ᡂ䛜ྍ ௦⾲ⓗ䛺⤖ᬗἲ䛸䛧䛶䛿 㼟㼕㼠㼠㼕㼚㼓㻌 㼐㼞㼛㼜 ἲ䛚䜘䜃 㼔㼍㼚㼓㼕㼚㼓㻌 ⬟䛸䛺䜛䚹䛥䜙䛻䚸☢Ẽຊཬ䜃㔜ຊ䛜స⏝䛩䜛⎔ቃ䛻䛚䛡䜛 㼐㼞㼛㼜 ἲ䛜▱䜙䜜䛶䛔䜛䚹䛣䜜䜙䛾ᡭἲ䛻㐺䛧䛯⤖ᬗ䝥䝺䞊㻌 ὶయ䛾ὶ䜜䜢ィ⟬ᶵ䛷䝅䝭䝳䝺䞊䝖䛩䜛㻌 㼇㻞㼉䚹䛣䜜䛻䜘䜚䚸䝍䞁 䝖䜢䝕䝄䜲䞁䛧䚸స〇䛧䛶䛔䜛䚹㻌 䝟䜽㉁䛾⤖ᬗᡂ㛗䛻㐺䛧䛯☢ሙศᕸ䛺䛹䛾᮲௳䜢ㄪ䜉䛶䚸䝅 㻲㼕㼓㻚㻞 䛻䛿䝥䝻䝖䝍䜲䝥ᶵ䜢⏝䛔䛶⏕ᡂ䛧䛯䚸㞴⤖ᬗ䝍䞁 䝇䝔䝮䛾᭱㐺タィ䛻ᫎ䛥䛫䜛䚹㻌 䝟䜽㉁䛸䛧䛶▱䜙䜜䜛㻔㼂㻝㻙㻭㼀㻼㼍㼟㼑㻕㻌 䛾⤖ᬗ䜢♧䛩䚹⌧ᅾ䚸⤖ 㻌 ᬗ䛾ရ䚸ᵓ㐀䜢ゎᯒ୰䛷䛒䜛䚹㻌 㻟䠊䝥䝻䝆䜵䜽䝖䛾㐍ᤖ≧ἣ㻌 㻌 䝅䝭䝳䝺䞊䝅䝵䞁䛛䜙䛿䚸ᑐὶ䛾ไᚚ䛻䛿☢ሙ௨እ䛾ከ䛟䛾 㼍㻕㻌 㧗☢ẼຊⓎ⏕⏝㉸ఏᑟ䝬䜾䝛䝑䝖㻌 ᅉᏊ䛜ᙳ㡪䛩䜛ྍ⬟ᛶ䛜ண䛥䜜䜛䚹㻌 䝥䝻䝖䝍䜲䝥䛾㉸ఏᑟ䝬䜾䝛䝑䝖䜢ᑟධ䛧䚸䛸䛧䛶䝍䞁䝟䜽 㻌 ㉁⤖ᬗ⏕ᡂ䛻ཬ䜌䛩☢Ẽᾋᥭ䛾ຠᯝ䜢ㄪ䜉䛶䛔䜛䚹䝥䝻䝖䝍 ᮏ◊✲䛿⛉Ꮫᢏ⾡⯆ᶵᵓ䛂ඛ➃ィ ศᯒᢏ⾡䞉ᶵჾ㛤 䜲䝥ᶵ䛿☢Ẽᾋᥭ䛻㛵䛧䛶䛿ᡂᮏᶵ䛸䜋䜌ྠᵝ䛾ᛶ⬟䜢 Ⓨᴗᶵჾ㛤Ⓨ䝥䝻䜾䝷䝮㻌 㧗ຠ⋡䞉㧗ရ䝍䞁䝟䜽㉁⤖ᬗ ᭷䛩䜛䛜䚸᪂䛧䛔⤖ᬗ䝥䝺䞊䝖䛸ගᏛ䝥䝻䞊䝤䛾ᑟධ䛻ᚲ ⏕ᡂ䝅䝇䝔䝮䛾㛤Ⓨ䛃䛾ᨭ䜢ཷ䛡䛶ᐇ䛧䛶䛔䜛䚹 せ䛺䛝䛥䛾䝪䜰ᚄ䜢᭷䛧䛶䛔䛺䛔䚹㻌 㻌 㼎㻕ගᏛ䝥䝻䞊䝤㻌 ཧ⪃ᩥ⊩㻌 㠀☢ᛶᮦᩱ䛺䛹䜢㑅ᐃ䛧䚸ほᐹ⣔䜢 㻟 ḟඖ䠄㼅㻘㻌 㼆㻘㻌 䃗䠅䝁䞁 㻝㻚㻌㻱㻚㻌㻯㼞㼍㼕㼓㻘㻌㼑㼠㻌㼍㼘㻚㻦㻌㻯㼞㼥㼟㼠㻚㻌㻳㼞㼛㼣㼠㼔㻚㻌㻰㼑㼟㻘㻌㼂㼛㼘㻚㻌㻝㻌 䠄㻞㻜㻜㻝䠅㻌 㼜㻚㻤㻣㻌 㻌 䝖䝻䞊䝹䛷䛝䜛䝥䝻䞊䝤䜢స〇䛧䛯䚹ᚋ䚸㻞㻞 ᖺᗘ୰䛻ᡂ 㻞㻚㻌 㻴㻚㻌 㻻㼗㼍㼐㼍㻘㻌 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 㼂㼛㼘㻚㻌 㻤㻞㻌 䛩䜛ᮏᶵ䛸⤌䜏ྜ䜟䛫䛶䚸ㄪᩚ➼䜢⾜䛔䚸᭱㐺䛩䜛䚹㻌 㻔㻞㻜㻝㻜㻕㻌㼜㻚㻝㻢㻥㻌 㼏㻕⤖ᬗ䝥䝺䞊䝖㻌 ― 116 ― 第83回 2010年度秋季低温工学・超電導学会 1P-p20 磁気応用 㻝㻟㻌㻷 ෭ᶵ䜢⏝䛔䛯ᑠᆺ㉸ఏᑟ䝞䝹䜽☢▼䛾㧗☢ሙ䛾᳨ウ㻌 㻱㼚㼔㼍㼚㼏㼑㼙㼑㼚㼠㻌㼛㼒㻌㼠㼔㼑㻌㼠㼞㼍㼜㼜㼑㼐㻌㼒㼕㼑㼘㼐㻌㼛㼒㻌㼍㻌㼟㼙㼍㼘㼘㻌㼟㼡㼜㼑㼞㼏㼛㼚㼐㼡㼏㼠㼕㼚㼓㻌㼎㼡㼘㼗㻌㼙㼍㼓㼚㼑㼠㻌 㼡㼟㼕㼚㼓㻌㼍㻌㻝㻟㻌㻷㻌㼞㼑㼒㼞㼕㼓㼑㼞㼍㼠㼛㼞㻌 㻌 ᶓᒣ㻌 ဢ䠄㊊ᕤ䠅䠗ᒸ㻌 ᚭ㞝䠄᪂₲䠅䠗⬟Ⓩ㻌 ᏹ䠄ᒾᡭ䠅㻌 㼅㻻㻷㻻㼅㻭㻹㻭㻌㻷㼍㼦㼡㼥㼍㻌㻔㻭㻚㻵㻚㼀㻚㻕㻧㻌㻻㻷㻭㻌㼀㼑㼠㼟㼡㼛㻌㻔㻺㼕㼕㼓㼍㼠㼍㻌㼁㼚㼕㼢㻚㻕㻧㻌㻺㻻㼀㻻㻌㻷㼛㼟㼔㼕㼏㼔㼕㻌㻔㻵㼣㼍㼠㼑㻌㼁㼚㼕㼢㻚㻕㻌 㻱㻙㼙㼍㼕㼘㻦㻌㼗㻙㼥㼛㼗㼛㼥㼍㼙㼍㻬㼍㼟㼔㼕㼠㼑㼏㼔㻚㼍㼏㻚㼖㼜㻌 㻌 㻝䠊䛿䛨䜑䛻㻌 㻟䠊⤖ᯝ䛚䜘䜃⪃ᐹ㻌 ㉸ఏᑟ䝞䝹䜽☢▼䠄௨ୗ䠈䝞䝹䜽☢▼䛸䜆䠅䛿 㻞㻌㼀 䜢㉸䛘 ᅗ 㻞 䛻༳ຍ☢ሙ䛸ᤕᤊ☢ሙ䛾㛵ಀ䜢♧䛩䚹ᅇ䛾ᐇ㦂䛷 䜛䛝䛺☢ሙ䜢ᐜ᫆䛻Ⓨ⏕䛩䜛䛣䛸䛜䛷䛝䠈☢Ẽศ㞳䜔䝰䞊 䛿䠍䠍Ⓨ䛾☢ሙ䜢༳ຍ䛧䛶䛔䜛䚹䛣䛣䛷䠈䕕༳䛷♧䛩 㻝 䛛䜙 㻢 䝍䞊䞉Ⓨ㟁ᶵ䠈⸆ᦙ㏦䝅䝇䝔䝮䠈䝬䜾䝛䝖䝻䞁䝇䝟䝑䝍䝸䞁䜾 Ⓨ┠䜎䛷䛿 㻟㻜㻌 㻷䠈䕿༳䛷♧䛩 㻣 Ⓨ┠௨㝆䛿 㻞㻜㻌 㻷 䛻 ᗘㄪ 䛺䛹䛾⏘ᴗᛂ⏝䛜᳨ウ䛥䜜䛶䛔䜛䚹ᡃ䚻䛿Ⓨ⏕☢ሙ䛾ᣑ䛸 ⠇䛧䛶䛔䜛䚹䜎䛯䠈ᅗ䠏䛻䠍䠈䠏䠈䠒䠈䠍䠍Ⓨ┠䛾☢ሙ༳ຍᚋ䛾☢ ⨨䛾ྲྀ䜚ᢅ䛔᫆䛥䜢⪃៖䛧䛯 㻞 ẁ 㻳㻹 ෭ᶵ䜢⏝䛔䛯䝞䝹 ᴟ⾲㠃䛻䛚䛡䜛☢ሙศᕸ䜢♧䛩䚹㻌 䜽☢▼⨨䜢〇స䛧䠈ᇶ♏ⓗ䛺╔☢ヨ㦂䜢⾜䛳䛶䛝䛯䚹䛣䜜 ᅗ䠏䛻䛚䛔䛶䠈㻝 Ⓨ┠䛾☢ሙ༳ຍ䛷䛿༑ศ䝏䝱䝛䝹䛜䛷䛝 䜎䛷䛻䃥㻢㻜㻌 㼙㼙 䛾 㻳㼐㻮㼍㻞㻯㼡㻟㻻㻣㻙㼤 䝞䝹䜽య䜢⏝䛔䛶䝟䝹䝇╔ 䛶䛔䛺䛔䛯䜑䠈㻞 Ⓨ┠䛷䛝䛺☢ሙ䜢༳ຍ䛩䜛䛣䛸䛸䛧䛯䚹㻟 Ⓨ ┠䛾☢ሙศᕸ䜢䜏䜛䛸➨୕㇟㝈䛻῝䛔䝏䝱䝛䝹䛜䛷䛝䛶䛔䜛 ☢䜢⾜䛳䛯⤖ᯝ䠈༳ຍ☢ሙ 㻣㻚㻣㻠㻌 㼀 䛻䛚䛔䛶䝞䝹䜽య⾲㠃䛷 䛣䛸䛜ศ䛛䜛䚹ḟ䛻ᙅ䛔☢ሙ䜢༳ຍ䛩䜛䛣䛸䛷䠈㻢 Ⓨ┠䛾ศᕸ 㻞㻚㻣㻢㻌㼀 䛾ᤕᤊ☢ሙ䜢㐩ᡂ䛧䛯䚹㻌 䛷䛿䝏䝱䝛䝹䛜ᇙ䜎䛳䛶䛔䜛䚹䛥䜙䛻䠈 ᗘ䜢 㻞㻜㻌㻷 䛻ୗ䛢䜛䛣 ᮏᩥ䛷䛿ᤕᤊ☢ሙ䛾ྥୖ䜢┠ᣦ䛧䛶䠈 ᗘ䛚䜘䜃༳ຍ☢ 䛸䛷ᤕᤊ☢ሙ䛜䛝䛟ྥୖ䛧䠈᭱⤊ⓗ䛻 㻟㻚㻜㻞㻌 㼀 䜢㐩ᡂ䛧䛯䚹 ሙ䜢ኚ䛘䛯╔☢ᐇ㦂䛾⤖ᯝ䜢ሗ࿌䛩䜛䚹㻌 㻝㻝 Ⓨ┠䛾☢ሙศᕸ䛷䛿୰ኸ㒊ศ䛻୍㒊☢ሙ䛾ᑠ䛥䛺㒊ศ 㻌 䛜䛒䜛䛜䠈䜋䜌ྠᚰ≧䛾ศᕸ䛸䛺䛳䛶䛔䜛䚹㻌 㻞䠊ᐇ㦂㻌 ᅗ 㻝 䛻 㻝㻟㻌㻷 ෭ᶵ䜢⏝䛔䛯ᑠᆺ䝞䝹䜽☢▼⨨䛾ᴫ␎䜢 㻠䠊䜎䛸䜑㻌 ♧䛩䚹㻞 ẁᘧ䛾 㻳㻹 䝃䜲䜽䝹෭ᶵ䠄㻾㻲㻞㻣㻟㻿㻭䠈䜰䜲䝅䞁⢭ᶵ 㻝㻟㻌㻷 ෭ᶵ䜢⏝䛔䛯ᑠᆺ䝞䝹䜽☢▼⨨䜢⏝䛔䛶䠈䛣䜜䜎 〇䠅䜢᥇⏝䛧䠈㻌㻞㼚㼐 䝇䝔䞊䝆䛻䛚䛡䜛᭱ప฿㐩 ᗘ䛿 㻝㻟㻌㻷 ௨ 䛷䛾䝕䞊䝍䛻ᇶ䛵䛝 ᗘ䛚䜘䜃༳ຍ☢ሙ䛾䛝䛥䜢ኚ䛘䛺䛜 ୗ䠈⇕ᐜ㔞䛿 㻡㻌㼃㻬㻞㻜㻌㻷 䛸䛺䛳䛶䛔䜛䚹ධຊ䛿 㻟 ┦ 㻞㻜㻜㻌㼂䠈ᾘ 䜙䝟䝹䝇╔☢䜢⾜䛳䛯䚹䛭䛾⤖ᯝ䃥㻢㻜㼙㼙 䛾ᆺ㧗≉ᛶ䝞䝹 ㈝㟁ຊ䛿 㻝㻚㻢㻌 㼗㼃 䛷䛒䜛䚹╔☢᪉ᘧ䜢䝟䝹䝇╔☢䛻㝈ᐃ䛧䛯 䜽䛻䛚䛔䛶 㻟㻚㻜㻞㻌 㼀㻌 䛾☢ሙ䜢ᤕᤊ䛧䛯䚹ᚋ䛥䜙䛻䛝䛺ᤕᤊ 䛯䜑䛻☢ᴟ䛾ᑠᆺ䛻ᡂຌ䛧䠈⨨䛾㛗䛿 㻡㻣㻜㻌 㼙㼙䠈☢ᴟ ☢ሙ䜢㐩ᡂ䛩䜉䛟䠈╔☢᪉ἲ䜢᳨ウ䛩䜛ணᐃ䛷䛒䜛䚹㻌 ᚄ䛿䃥㻤㻣㻌㼙㼙 䛸䛺䛳䛶䛔䜛䚹㻌 䃥㻢㻜㽢㻞㻜㻌 㼙㼙 䛾 㻳㼐㻮㼍㻞㻯㼡㻟㻻㻣㻙㼤 䝞䝹䜽య䜢 㻞㼚㼐 䝇䝔䞊䝆䛻 ᥋⥆䛧䛯㖡䝻䝑䝗䛾ඛ➃䛻ྲྀ䜚䛡䠈┿✵᩿⇕䛧䛯䛾䛱෭༷䛧 䛯䚹䛣䜜䜎䛷䛾ᐇ㦂⤖ᯝ䜢ᇶ䛻䠈 ᗘ䛚䜘䜃༳ຍ☢ሙ䜢ኚ䛘 䛺䛜䜙╔☢䜢⾜䛳䛯䚹䛺䛚䠈 ᗘㄪᩚ䛻䛿 ᗘ䝁䞁䝖䝻䞊䝷 䠄㼀㻯㻙㻰㻮㻜㻜㻝䠈䜰䜲䝅䞁⢭ᶵ〇䠅䜢⏝䛔䛯䚹☢ሙ༳ຍᚋ䛾䝞䝹 䜽⾲㠃䛾୰ᚰ䛻䛚䛡䜛ᤕᤊ☢ሙ䜢䝩䞊䝹䝉䞁䝃䠄㻮㻴㼀㻙㻥㻞㻝䠈 㻲㻚㼃㻚㻮㻱㻸㻸 ♫〇䠅䛷 ᐃ䛧䠈䛥䜙䛻☢ᴟ⾲㠃䠄䝞䝹䜽య⾲㠃䛛 䜙 㻠㻌 㼙㼙䠅䛾☢ሙศᕸ䜢୕ḟඖ䝩䞊䝹䝉䞁䝃䠄㻴㻳㼀㻙㻟㻜㻟㻜㻘㻌 㻸㼍㼗㼑㻿㼔㼛㼞㼑㻌㻯㼞㼥㼛㼠㼞㼛㼚㼕㼏㼟㻌♫〇䠅䜢⏝䛔䛶 ᐃ䛧䛯䚹㻌 ╔☢ᡭ㡰䛿䠈䐟㧗䛔 ᗘ䛻䛩䜛䛣䛸䛷 㻶㼏 䜢ୗ䛢䛶☢ሙ䜢 ධ䛧䜔䛩䛟䛧䠈䛥䜙䛻䛝䛺☢ሙ䜢༳ຍ䛩䜛䛣䛸䛷☢᮰䛜㐍ධ ⤒㊰䠄䝏䝱䝛䝹䠅䜢స䜛䚹䐠ᚎ䚻䛻ᙅ䛔☢ሙ䜢༳ຍ䛧䛶䝏䝱䝛 䝹䜢ᇙ䜑䛶䛔䛟䚹䐡 ᗘ䜢ୗ䛢䛶 㻶㼏 䜢ୖ䛢䜛䛣䛸䛻䜘䜚䠈☢ሙ 㻲㼕㼓㻚㻌 㻞㻚㻌 㼀㼔㼑㻌 㼞㼑㼘㼍㼠㼕㼛㼚㼟㼔㼕㼜㻌 㼎㼑㼠㼣㼑㼑㼚㻌 㼠㼔㼑㻌 㼍㼜㼜㼘㼕㼑㼐㻌 㼒㼕㼑㼘㼐㻘㻌 㽀㻜㻴㻘㻌 㼍㼚㼐㻌 䜢⭾䜙䜎䛫䜛䛣䛸䜢⪃䛘䛯䚹㻌 㼠㼔㼑㻌㼠㼞㼍㼜㼜㼑㼐㻌㼒㼕㼑㼘㼐㻘㻌㻮㼀㻌㼕㼚㻌㼍㼚㻌㼍㼐㼢㼍㼚㼏㼑㼐㻌㼙㼍㼓㼚㼑㼠㼕㼦㼍㼠㼕㼛㼚㻚㻌 㻌 1. 3. T0=30 K, μ0H=6.19 T 6. 11. T0=30 K, μ0H=5.81 T 㻲㼕㼓㻚㻌㻝㻚㻌㻿㼏㼔㼑㼙㼍㼠㼕㼏㻌㼛㼒㻌㼍㻌㼟㼙㼍㼘㼘㻙㼟㼕㼦㼑㻌㼟㼡㼜㼑㼞㼏㼛㼚㼐㼡㼏㼠㼕㼚㼓㻌㼎㼡㼘㼗㻌㼙㼍㼓㼚㼑㼠㻌 㼟㼥㼟㼠㼑㼙㻌㼡㼟㼕㼚㼓㻌㼍㻌㻝㻟㻌㻷㻌㼞㼑㼒㼞㼕㼓㼑㼞㼍㼠㼛㼞㻚㻌 T0=30 K, μ0H=7.97 T T0=20 K, μ0H=4.64 T 㻲㼕㼓㻚㻌 㻟㻚㻌 㼀㼞㼍㼜㼜㼑㼐㻌 㼒㼕㼑㼘㼐㻌 㼐㼕㼟㼠㼞㼕㼎㼡㼠㼕㼛㼚㼟㻌 㼛㼚㻌 㼠㼔㼑㻌 㼙㼍㼓㼚㼑㼠㼕㼏㻌 㼜㼛㼘㼑㻌 㼟㼡㼞㼒㼍㼏㼑㻌㼍㼒㼠㼑㼞㻌㼍㼜㼜㼘㼥㼕㼚㼓㻌㼚㼛㼟㻚㻌㻝㻘㻌㻟㻘㻌㻢㻌㼍㼚㼐㻌㻝㻝㻌㼜㼡㼘㼟㼑㼟㻚㻌 ― 117 ― 第83回 2010年度秋季低温工学・超電導学会 1P-p21 Bi 系線材 (1) 㻰㻯 䝬䜾䝛䝖䝻䞁䝇䝟䝑䝍䝸䞁䜾ἲ䜢⏝䛔䛯 㻮㼕㻞㻿㼞㻞㻯㼍㻞㻯㼡㻟㻻㻝㻜 ⷧ⭷䛾స〇㻌 㻲㼍㼎㼞㼕㼏㼍㼠㼕㼛㼚㻌㼛㼒㻌㻮㼕㻞㻿㼞㻞㻯㼍㻞㻯㼡㻟㻻㻝㻜㻌㼒㼕㼘㼙㼟㻌㼎㼥㻌㻰㻯㻌㼙㼍㼓㼚㼑㼠㼞㼛㼚㻌㼟㼜㼡㼠㼠㼑㼞㼕㼚㼓㻌 㻌 ྜྷᮧ㻌 ༟ဢ䚸ᅵ㻌 ಇဢ䚸Ἠ㻌 ➉⾨䚸ⓑᵹ㻌 ၿ๎㻔㮵ඣᓥ㻕䠗㻌 ᯇᮏ㻌 ᫂ၿ䚸ཱྀ㻌 ோ㻔㻺㻵㻹㻿㻕㻌 㼅㻻㻿㻴㻵㻹㼁㻾㻭㻌㼀㼍㼗㼡㼥㼍䠈㻰㻻㻵㻌㼀㼛㼟㼔㼕㼥㼍䠈㻵㼆㼁㻹㻵㻌㼀㼍㼗㼑㼙㼛㼞㼕䠈㻴㻭㻷㼁㻾㻭㻷㼁㻌㼅㼛㼟㼔㼕㼚㼛㼞㼕㻔㻷㼍㼓㼛㼟㼔㼕㼙㼍㻌㼁㼚㼕㼢㼑㼞㼟㼕㼠㼥㻕䠗㻌 㻹㻭㼀㻿㼁㻹㻻㼀㻻㻌㻭㼗㼕㼥㼛㼟㼔㼕䠈㻷㻵㼀㻭㻳㼁㻯㻴㻵㻌㻴㼕㼠㼛㼟㼔㼕㻔㻺㻵㻹㻿㻕㻌 㻱㼙㼍㼕㼘䠖㼗㻥㻡㻢㻡㻠㻣㻝㻬㼗㼍㼐㼍㼕㻚㼖㼜㻌 㻌 㼀㼍㼎㼘㼑㻝㻌㻯㼛㼙㼜㼛㼟㼕㼠㼕㼛㼚㼟㻌㼛㼒㻌㼠㼍㼞㼓㼑㼠㼟㻌㼍㼚㼐㻌㻮㼕㻞㻞㻞㻟㻌㼒㼕㼘㼙㼟㻚㻌 㻝䠊䛿䛨䜑䛻㻌 㻌 㻌 ⌧ᅾ 㻮㼕㻞㻿㼞㻞㻯㼍㻞㻯㼡㻟㻻㻝㻜㻔㻮㼕㻞㻞㻞㻟㻕䛿 㻼㼛㼣㼐㼑㼞㻙㼕㼚㻙㼠㼡㼎㼑 ἲ䜢⏝䛔 㻯㼛㼙㼜㼛㼟㼕㼠㼕㼛㼚㻌㼛㼒㻌㼠㼍㼞㼓㼑㼠㻌 㻮㼕㻞㻚㻝㻼㼎㻝㻚㻡㻿㼞㻞㻯㼍㻞㻚㻞㻯㼡㻞㻚㻟㻻㼥㻌 㻮㼕㻞㻚㻝㻼㼎㻝㻚㻡㻿㼞㻞㻯㼍㻞㻚㻞㻯㼡㻞㻚㻝㻻㼥㻌 㻮㼕㻞㻚㻝㻼㼎㻝㻚㻡㻿㼞㻞㻯㼍㻞㻚㻜㻯㼡㻞㻚㻟㻻㼥㻌 㻮㼕㻞㻚㻝㻼㼎㻝㻚㻡㻿㼞㻞㻯㼍㻞㻚㻜㻯㼡㻞㻚㻝㻻㼥㻌 㻮㼕㻞㻚㻝㻼㼎㻝㻚㻡㻿㼞㻞㻯㼍㻝㻚㻡㻯㼡㻞㻚㻝㻻㼥㻌 䛶స〇䛧䛯⥺ᮦ䛜ᐇ⏝䛻ྥ䛡䛶◊✲䛥䜜䛶䛔䜛䛜䚸⮫⏺㟁 ὶᐦᗘ㻔㻶㼏㻕䛿ᩘ 㻭㻛䠿䡉㻞 䛸ప䛔್䛻␃䜎䛳䛶䛚䜚䚸᭦䛺䜛≉ᛶ ྥୖ䛜ồ䜑䜙䜜䜛䚹䛭䛣䛷ᡃ䚻䛿䚸㻰㻯 䝬䜾䝛䝖䝻䞁䝇䝟䝑䝍䝸 䞁䜾ἲ䜢⏝䛔䛶䚸㻿㼞㼀㼕㻻㻟㻔㻿㼀㻻㻕ᇶᯈୖ䛻 㻞 ㍈㓄ྥ䛧䛯 㻮㼕㻞㻞㻞㻟 ༢┦ⷧ⭷䛾స〇䜢ヨ䜏䛯䚹㻌 㻮㼕㻌 㻞㻚㻜㻠㻌 㻝㻚㻢㻤㻌 㻞㻚㻟㻜㻌 㻞㻚㻝㻡㻌 㻝㻚㻥㻣㻌 㻿㼞㻌 㻞㻚㻜㻜㻌 㻞㻚㻜㻜㻌 㻞㻚㻜㻜㻌 㻞㻚㻜㻜㻌 㻞㻚㻜㻜㻌 㻯㼍㻌 㻞㻚㻥㻥 㻟㻚㻟㻠 㻞㻚㻝㻠 㻞㻚㻜㻢 㻝㻚㻡㻠 㻯㼡㻌 㻟㻚㻟㻤 㻟㻚㻝㻤 㻟㻚㻟㻡 㻞㻚㻣㻝 㻞㻚㻡㻢 㻌 ᑟ⤖ྜ䝥䝷䝈䝬ศගศᯒ䠄䠥䠟䠬䠅⨨䛻䜘䜚⁐ᾮ⤌ᡂ䜢 ᐃ䛩 㻜 䜛䛣䛸䛷Ỵᐃ䛧䛯䚹䜎䛯䚸ヨᩱ⾲㠃䛿㉮ᰝ㟁Ꮚ㢧ᚤ㙾㻔㻿㻱㻹㻕䜢 ⏝䛔䛶ほᐹ䛧䚸ᢠ䝊䝻䛾⮫⏺ ᗘ㻔㼀㼏㻙㼦㼑㼞㼛㻕䛿┤ὶᅄ➃Ꮚἲ 䛷 ᐃ䛧䛯䚹㻌 㻞㻜 㻿㼀㻻㻌㻔㻌㻞㻜㻜㻌㻕 㻿㼀㻻㻌㻔㻌㻝㻜㻜㻌㻕 㻝㻜 㻮㼕㻙㻞㻞㻞㻟㻌㻔㻌㻜㻜㻝㻠 㻕 䛯䚹స〇䛧䛯ⷧ⭷ヨᩱ䛾⤌ᡂ䛿◪㓟Ỉ⁐ᾮ䛻⁐ゎ䛧䛯ᚋ䚸ㄏ 㻮㼕㻙㻞㻞㻞㻟㻌㻔㻌㻜㻜㻝㻞 㻕 Ꮫ㔞ㄽ⌮⤌ᡂ䛻㏆䛵䛡䜘䛖䛸ヨ䜏䛯䚹㻮㼕㻞㻞㻞㻟 ⷧ⭷䛾㓄ྥᛶ 䜢☜ㄆ䛩䜛䛯䜑䛻䃗䇲㻞䃗ἲ䛻䜘䜛 㼄 ⥺ᅇᢡ㻔㼄㻾㻰㻕 ᐃ䜢⾜䛳 㻮㼕㻙㻞㻞㻞㻟㻌㻔㻌㻜㻜㻤㻌㻕 䛻ᅛᐃ䛧䚸䝍䞊䝀䝑䝖⤌ᡂ䜢ㄪᩚ䛩䜛䛣䛸䛷䚸ⷧ⭷䛾⤌ᡂẚ䜢 㻮㼕㻙㻞㻞㻞㻟㻌㻔㻌㻜㻜㻞㻌㻕 㻮㼕㻞㻞㻞㻟 ⷧ⭷䜢స〇䛧䛯䚹ᇶᯈ ᗘ 㻣㻜㻢䉝䚸㓟⣲ศᅽ 㻜㻚㻟㻟㼀㼛㼞㼞 㻵㼚㼠㼑㼚㼟㼕㼠㼥 㻔㼍㼞㼎㻚㼡㼚㼕㼠㼟㻕 㻌 㻌 㻿㼀㻻 ᇶᯈୖ䛻 㻰㻯 䝬䜾䝛䝖䝻䞁䝇䝟䝑䝍䝸䞁䜾⨨䜢⏝䛔䛶 㻮㼕㻙㻞㻞㻞㻟㻌㻔㻌㻜㻜㻝㻜 㻕 㻞䠊ヨᩱ䛚䜘䜃ᐇ㦂᪉ἲ㻌 㻟㻜 㻠㻜 㻞䃗㻔㼐㼑㼓㼞㼑㼑㻕 㻮㼕㻙㻞㻞㻞㻟㻌㻔㻌㻜㻜㻞㻠 㻕 㻌 㻡㻜 㻢㻜 㻣㻜 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㻌㼛㼒㻌㼠㼔㼑㻌㻮㼕㻞㻞㻞㻟㻌㼒㼕㼘㼙㻚㻌 㻌 㻌 㻟䠊⤖ᯝ䛸⪃ᐹ㻌 㻌 㻌 㼀㼍㼎㼘㼑㻝 䛻␗䛺䜛⤌ᡂ䛾䝍䞊䝀䝑䝖䜢⏝䛔䛶ᇶᯈ ᗘ 㻣㻜㻢䉝䚸 㓟⣲ศᅽ 㻜㻚㻟㻟㼀㼛㼞㼞 䛾᮲௳ୗ䛷స〇䛧䛯ⷧ⭷䛾⤌ᡂ䜢♧䛩䚹 䛣䜜䜘䜚䚸䝍䞊䝀䝑䝖⤌ᡂ 㻮㼕㻞㻚㻝㻼㼎㻝㻚㻡㻿㼞㻞㻯㼍㻞㻚㻜㻯㼡㻞㻚㻟㻻㼥 䛻䛚䛔䛶 㻮㼕㻦㻿㼞㻦㻯㼍㻦㻯㼡㻩㻞㻚㻟㻜㻦㻞㻚㻜㻜㻦㻞㻚㻝㻠㻦㻟㻚㻟㻡 䛸 㻮㼕㻞㻞㻞㻟 䛾Ꮫㄽ⤌ᡂ䛻㏆ 䛔⤌ᡂ䜢ᣢ䛴 㻮㼕㻞㻞㻞㻟 ⷧ⭷䜢స〇䛷䛝䛶䛔䜛䛣䛸䛜䜟䛛䜛䚹 3䃛m 㻲㼕㼓㻚㻝 䛻⤌ᡂ 㻮㼕㻞㻚㻝㻼㼎㻝㻚㻡㻿㼞㻞㻯㼍㻞㻚㻜㻯㼡㻞㻚㻟㻻㼥 䛾䝍䞊䝀䝑䝖䜢⏝䛔䛶 㻿㼀㻻 ᇶᯈୖ䛻స〇䛧䛯 㻮㼕㻞㻞㻞㻟 ⷧ⭷䛾 㼄㻾㻰 䝟䝍䞊䞁䜢♧䛩䚹 ほ 䛥䜜䛯䝢䞊䜽䛿䜋䜌 㻮㼕㻞㻞㻞㻟 䛾㻔㻜㻜䉭㻕䛾䝢䞊䜽䛷䛒䜚䚸 㻮㼕㻞㻞㻞㻟 䛜 㼏 ㍈㓄ྥ䛧䛶䛔䜛䛣䛸䛜䜟䛛䜛䚹㻲㼕㼓㻚㻞 䛻䛣䛾 㻮㼕㻞㻞㻞㻟 ⷧ⭷䛾 㻿㻱㻹 䛻䜘䜛⾲㠃ほᐹ⏬ീ䜢♧䛩䚹⾲㠃䛻ᯒฟ≀䛜☜ 㻌 㻌 㻲㼕㼓㻚㻞㻌㻿㻱㻹㻌㼙㼕㼏㼞㼛㼓㼞㼍㼜㼔㻌㼛㼒㻌㼠㼔㼑㻌㼟㼡㼞㼒㼍㼏㼑㻌㼛㼒㻌㼠㼔㼑㻌㻮㼕㻞㻞㻞㻟㻌㼒㼕㼘㼙㻚㻌 㻌 㻞㻡㻜 ㄆ䛷䛝䜛䚹㻲㼕㼓㻚㻟 䛻ྠ䛨 㻮㼕㻞㻞㻞㻟 ⷧ⭷䛾ᢠ⋡䇲 ᗘ౫Ꮡᛶ䜢♧ 䛩䚹䛣䜜䜘䜚䚸ᅇస〇䛧䛯ⷧ⭷䛿㉸ఏᑟ㌿⛣䛿䝤䝻䞊䝗䛷䛿 〇䛧䛯 㻮㼕㻞㻞㻞㻟 ⷧ⭷䛾 㼀㼏㻙㼦㼑㼞㼛 䛿 㻮㼕㻞㻞㻞㻟 䛜ᮏ᮶ᣢ䛴 㼀㼏㻙㼦㼑㼞㼛㻩㻝㻝㻜㻷 䜘䜚ᖜ䛻ప䛔್䛷䛒䛳䛯䚹㻌 㻌 㻞㻜㻜 㻾㼑㼟㼕㼟㼠㼕㼢㼕㼠㼥 㻔䃛䃈䞉㼏㼙㻕 䛒䜛䛜䚸㼀㼏㻙㼦㼑㼞㼛㻩㻣㻞㻷 䛷䛒䜛䛣䛸䛜䜟䛛䜛䚹䛧䛛䛧䛺䛜䜙䚸ᅇస 㻝㻜㻜 㻡㻜 ㅰ㎡㻌 㻌 ᮏ◊✲ࡢ୍㒊ࡣ⛉Ꮫ◊✲㈝⿵ຓ㔠 22246079 ࡢຓᡂࢆ ཷࡅ࡚ᐇࡉࢀࡓࡶࡢ࡛࠶ࡿࠋ㻌 㻌 㻌 㻌 㻌 㻝㻡㻜 㻜 㻡㻜 㻢㻜 㻣㻜 㻤㻜 㻥㻜 㼀㼑㼙㼜㼑㼞㼍㼠㼡㼞㼑㻔㻷㻕 㻝㻜㻜 㻝㻝㻜 㻝㻞㻜 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㼒㻌㼠㼔㼑㻌㼞㼑㼟㼕㼟㼠㼕㼢㼕㼠㼥㻌㼛㼒㻌㼠㼔㼑㻌㻮㼕㻞㻞㻞㻟㻌 㼒㼕㼘㼙㻚㻌 ― 118 ― 第83回 2010年度秋季低温工学・超電導学会 1P-p22 Bi 系線材 (1) ᪂పὶᦆኻ 㻮㼕㻙㻞㻞㻞㻟 ㉸㟁ᑟ⥺䛾㛤Ⓨ䠄䠍䠅㻌 䠉୰ኸ⤯⦕ᒙ䛻䜘䜛⤖ྜᐃᩘ䛾పῶຠᯝ䠉 㻰㼑㼢㼑㼘㼛㼜㼙㼑㼚㼠㻌㼛㼒㻌㼚㼑㼣㻌㻮㼕㻙㻞㻞㻞㻟㻌㼟㼡㼜㼑㼞㼏㼛㼚㼐㼡㼏㼠㼕㼚㼓㻌㼣㼕㼞㼑㼟㻌 䡓䡅䡐䡄㻌 㼘㼛㼣㻌㻭㻯㻌㼘㼛㼟㼟㻌㻔㻝㻕㻌 㻙㻌㻾㼑㼐㼡㼏㼠㼕㼛㼚㻌㼕㼚㻌㼏㼛㼡㼜㼘㼕㼚㼓㻌㼠㼕㼙㼑㻌㼏㼛㼚㼟㼠㼍㼚㼠㻌㼎㼥㻌㼍㻌㼏㼑㼚㼠㼞㼍㼘㻌㼕㼚㼟㼡㼘㼍㼠㼕㼛㼚㻌㼘㼍㼥㼑㼞㻌䇵㻌 ᕝᔘ㻌 ᇶᘯ䠈㔝ୖ㻌 ᗈྖ䠈ᒾ⇃㻌 ᡂ༟䠈⯪ᮌ㻌 ኵ䠄䠅䠗㻌 ⥤㻌 ┤ᶞ䠈ᑠᯘ㻌 ៅ୍䠈⳥ᆅ㻌 ᫀᚿ䠈ᯘ㻌 ᙪ䠄ఫ㟁ᕤ䠅㻌 Motohiro Kawasaki䠈 Koji Nogami䠈 Masataka Iwakuma䠈 Kazuo Funaki (Kyushu Univ䠊)䠗 Naoki Ayai䠈 Shin-ich Kobayashi䠈 Masashi Kikuchi䠈 Kazuhiko Hayashi (Sumitomo Electric Industries) E-mail䠖 [email protected] 㻌 㻌 㸬ࡣࡌࡵ ᡃ䚻䛾䜾䝹䞊䝥䛷䛿䠈㉸㟁ᑟ⥺䛻䛚䛡䜛ὶᦆኻ䛾పῶ䛻 䜘䜛㉸ఏᑟタഛ䛾㍍㔞䜢ᕳ⥺ᵓ㐀䜔෭༷䝅䝇䝔䝮䛾᭱㐺 㼀㼍㼎㼘㼑㻚㻝㻌㻼㼍㼞㼍㼙㼑㼠㼑㼞㼟㻌㼛㼒㻌㻮㼕㻙㻞㻞㻞㻟㻌㼙㼡㼘㼠㼕㼒㼕㼘㼍㼙㼑㼚㼠㼍㼞㼥㻌㼠㼍㼜㼑㼟㻌 䛺䛹䜢㏻䛧䛶ホ౯䛧䚸≉䛻䚸㕲㐨㌴୧⏝ኚᅽჾ䜔ྛ✀䛾㟁ຊ ᶵჾ䛾 㻮㼕㻙㻞㻞㻞㻟 ⣔㉸㟁ᑟ⥺䛻䜘䜛㉸㟁ᑟ䛾ྍ⬟ᛶ䛻䛴䛔䛶 ᳨ウ䛧䛶䛝䛯䚹䛣䛾䜘䛖䛺㉸ఏᑟタഛ䛾ᐇ⏝䛾๓ᥦ䛸䛺䜛 ὶᦆኻ䛾పῶἲ䜢᫂䜙䛛䛻䛩䜛䛯䜑䛻䚸䛣䜜䜎䛷䛻䚸䝒䜲䝇䝖䜢 䝟䝷䝯䞊䝍㻛⥺ᮦྡ ⥺ᮦᖜ[mm] ⥺ᮦཌ䛥[mm] AC74-A AC74-C AC88-C XM453A 2.39 0.183 2.32 0.182 2.2 0.17 2.03 0.203 䜰䝇䝨䜽䝖ẚ ㉸㟁ᑟẚ L p [mm] 13.06 0.26 12.75 0.26 12.94 0.27 10 0.16 8.5 5.2 3.2 14 IJ c,rec [s] IJ c,rec ẚ 2.31E-03 1.00 8.11E-04 0.35 3.94E-04 0.17 2.68E-04 0.12 L p2 ẚ 1.00 0.37 0.14 2.71 䛧䛯㖟䝅䞊䝇 㻮㼕㻙㻞㻞㻞㻟 ከⰺ䝔䞊䝥⥺䛻ᑐ䛧䛶䚸䝒䜲䝇䝖䛻䜘䜛 䝠䝇䝔䝸䝅䝇ᦆኻ䜔⤖ྜᦆኻ䛾పῶຠᯝ䛻䛴䛔䛶⣔⤫ⓗ䛺᳨ ウ䜢⾜䛳䛶䛝䛯㼇㻝㼉䚹㻌 ᅇ䛿䚸ᚑ᮶䛾㖟䝅䞊䝇 㻮㼕㻙㻞㻞㻞㻟 ከⰺ䝔䞊䝥⥺䛻䛚䛔䛶䚸ෆ ᒙ䛾䝣䜱䝷䝯䞁䝖㒊䛻⤯⦕ᒙ䜢㓄⨨䛧䛯᪂䛧䛔ᵓ㐀䛾⥺ᮦ䜢タ ィ䞉〇స䛧䚸䛣䛾୰ኸ⤯⦕ᒙ䜢ᑟධ䛧䛯⥺ᮦ䛾ὶᦆኻ≉ᛶ䜢 ᐃ䛧䛯䛾䛷䚸䛭䛾⤖ᯝ䜢ሗ࿌䛩䜛䚹䜎䛯䚸ᚑ᮶䛾ヨస⥺䛸ẚ ㍑䛩䜛䛣䛸䛻䜘䜚䚸䛣䛾⤯⦕ᒙ䛻䜘䜛⤖ྜᦆኻ䛾పῶຠᯝ䜢㆟ ㄽ䛩䜛䚹㻌 4 10 㻌 AC Loss Density [J/m cycle] 㸬⥺ᮦㅖඖ ᐃ᪉ἲ 3 ⤖ ྜ ᦆ ኻ ప ῶ 䛾 䛯 䜑 䛻 ୰ ኸ ⤯ ⦕ ᒙ 䜢 ᑟ ධ 䛧 䛯 ⥺ ᮦ㻌 㻔㼄㻹㻠㻡㻟㻭㻕㻌 䜢 ヨ స 䛧 䛯 䚹 䛺 ㅖ ඖ 䜢 䚸 ๓ ᅇ 䛾 ヨ స ⥺ ᮦ 䠄㻭㻯㻣㻠㻙㻭㻘㻌㻭㻯㻣㻠㻙㻯㻘㻌㻭㻯㻤㻤㻙㻯䠅㼇㻝㼉䛸ྜ䜟䛫䛶 㼀㼍㼎㼘㼑㻌㻝 䛻♧䛩䚹㻌 ヨస䛧䛯పὶᦆኻ⥺ᮦ䛾ᆶ┤☢⏺ᦆኻ䜢䚸㠡ᆺ䝢䝑䜽䜰 䝑䝥䝁䜲䝹ἲ䛻䜘䜚ᾮయ❅⣲୰䛷 ᐃ䛧䛯䚹ᚑ᮶䛸ྠ䛨䛟✚ᒙᯛ ᩘ䜢 㻢 䛸䛧䚸࿘Ἴᩘ䛿 㻜㻚㻝䡚㻢㻜㻴㼦 䛾⠊ᅖ䚸☢⏺ᖜ䛿 㻜㻚㻞㻡㼀 䜎 䛷䛾㡿ᇦ䛷ᦆኻ ᐃ䜢⾜䛳䛶䛔䜛䚹㻌 㻌 3 10 2 10 1 10 㸬 ᐃ⤖ᯝ⪃ᐹ ᦆኻ䛻䜘䜛䜒䛾䛸⪃䛘䜙䜜䜛䚹㻌 -3 10 -2 -1 10 10 0 10 Bm [T] 㼄㻹㻠㻡㻟㻭 䛾ᆶ┤☢⏺ᦆኻ≉ᛶ䜢 㻲㼕㼓㻚㻌㻝 䛻♧䛩䚹☢⏺ᖜ 㡿ᇦ䛻䛚䛡䜛ὶᦆኻ䛾࿘Ἴᩘ౫Ꮡᛶ䛿䝣䜱䝷䝯䞁䝖㛫䛾⤖ྜ 0.1 Hz 0.2 Hz 0.5 Hz 1 Hz 5 Hz 10 Hz 30Hz 50 Hz 60 Hz 㻲㼕㼓㻚㻝㻌㻲㼕㼑㼘㼐㻌㼍㼙㼜㼘㼕㼠㼡㼐㼑㻌㼐㼑㼜㼑㼚㼐㼑㼚㼏㼑㻌㼛㼒㻌㻭㻯㻌㼘㼛㼟㼟㼑㼟㻌㻔㼄㻹㻠㻡㻟㻭㻕㻌 ὶᦆኻ䛾࿘Ἴᩘ౫Ꮡᛶ䛛䜙䝔䞊䝥≧ከⰺ⥺䛾⤖ྜᐃ ᩘ䜢⟬ฟ䛧䛯㼇㻝㼉䚹䛭䛾⤖ᯝ䜢 㼀㼍㼎㼘㼑㻌 㻝 䛻♧䛩䚹ྛ⥺ᮦඹ䛻䚸䜰 䝇䝨䜽䝖ẚ䛿䜋䜌➼䛧䛔䛾䛷䚸㏻ᖖ䛾ከⰺᵓ㐀䛾ሙྜ䛻䛿䚸⤖ ྜᐃᩘ䃣㼏㻘㼞㼑㼏 䛿䝒䜲䝇䝖䝢䝑䝏 㻸㼜 䛾䠎䛻ẚ䛩䜛䛸⪃䛘䜙䜜 䜛䚹㻭㻯㻣㻠㻙㻭 䜢ᇶ‽䛸䛧䛯⤖ྜᐃᩘẚ 㻭 䛸䝒䜲䝇䝖䝢䝑䝏䛾䠎 ẚ 㻮 䜢ẚ㍑䛩䜛䛸䚸ᚑ᮶ᵓ㐀䛾⥺ᮦ䛷䛿୧⪅䛿䜋䜌୍⮴䛧䛶䛔 䜛䛜䚸㼄㻹㻠㻡㻟㻭 䛻䛴䛔䛶䛿䚸㻭㻛㻮㻌 㻩㻌 㻝㻛㻞㻟 䛸䛺䜚䚸⤖ྜᐃᩘ䛜 ཧ⪃ᩥ⊩ 㼇㻝㼉㻌 㔝ୖ䠖䛂పᦆኻᆺ 㻮㼕㻙㻞㻞㻞㻟㻌 ㉸ఏᑟከⰺ䝔䞊䝥⥺ᮦ䛾䝒䜲 䝇䝖ຠᯝ䛾ホ౯䛃ᖹᡂ 㻞㻝㻌 ᖺᗘ㟁Ẽ㛵ಀᏛᕞᨭ㒊㐃ྜ 㻌 㻜㻢㻙㻝㻼㻙㻝㻢㻌 ᴟ➃䛻ᑠ䛥䛟ほ 䛥䜜䛶䛔䜛䚹䛣䜜䛿䚸୰ኸ⤯⦕ᒙ䛻䜘䜚䝣䜱䝷䝯 䞁䝖㛫䛾⤖ྜ䛜ᢚไ䛥䜜䛯䛣䛸䛻䜘䜛䜒䛾䛸ᛮ䜟䜜䜛䚹㻌 ― 119 ― 第83回 2010年度秋季低温工学・超電導学会 1P-p23 Bi 系線材 (1) 䝯䞊䝖䝹⣭ Bi2223 䝞䝸䜰⥺ᮦ䛾స〇䛸ᆒ㉁ᛶホ౯ Fabrication and longitudinal uniformity of 1m-long Bi2223 tapes with resistive barriers ∾ཎ ▱⚽㸪✄⏣ ுྐ㸪ኴ⏣ ⏨㸦㇏ᶫᢏ⛉㸧; ᮤ ᡂᒣ㸪ᙇ ᖹ⚈㸦す᭷Ⰽ㔠ᒓ◊✲㝔㸧 MAKIHARA Tomohide, INADA Ryoji, OOTA Akio (TUT); LI Chengshan, ZHANG Pingxiang (NIN) E-mail: [email protected] 2 㻌 30 (a) (b) 20 㻌 Jc (kA/cm ) @77K, 0T Measurement sections of self-field 10 0 0 100 200 300 400 500 600 700 Longitudinal position x (mm) 800 Fig. 1. Distribution of critical current density Jc at 77K and self-field for Bi2223 tape with interfilamentary barriers. Ic1 = 46.9 A Ic2 = 46.9 A Ic3 = 47.6 A Bz (mT) Ic4 = 47.6 A 3.0 0 㻌㻚 y (mm) 5 -5 240 250 (a) 260 x (mm) Ic1 = 40.9 A Ic2 = 40.5 A 270 280 Tape edges Ic3 = 37.8 A -3.0 Bz (mT) Ic4 = 40.1 A 2.5 0 㻌㻚 y (mm) 5 -5 710 720 (b) 730 x (mm) 740 750 Tape edges -2.5 Fig. 2. Contour maps for self-field Bz on barrier tape at (a) x = 240-280 mm with high Ic (= 47 A) and (b) x = 710-750 mm with low Ic (= 38 A). Ic1 = 46.9 A Ic2 = 46.9 A Ic3 = 47.6 A Ic4 = 47.6 A dBz/dy (T/m) 3.0 0 㻌㻚 y (mm) 5 -5 240 250 (a) 5 260 x (mm) Ic1 = 40.9 A Ic2 = 40.5 A 270 280 Tape edges Ic3 = 37.8 A Ic4 = 40.1 A -3.0 dBz/dy (T/m) 2.5 0 㻌㻚 y (mm) ࡣࡌࡵ ᡃࠎࡣ㸪Bi2223 㧗 ㉸㟁ᑟ⥺ᮦࡢὶᦆኻపῶྥࡅ ࡚㸪㉸㟁ᑟࣇ࣓ࣛࣥࢺ㛫㧗ᢠᮦࢆᑟධࡋࡓపᦆኻ⥺ ᮦ㸦ࣂࣜ⥺ᮦ㸧ࡢ㛤Ⓨࢆ㐍ࡵ࡚࠸ࡿ[1,2]㸬ࣂࣜ⥺ᮦࡣ ᵓ㐀ࡀᴟࡵ࡚」㞧࡛࠶ࡿࡓࡵ㸪Ⰻዲࡘᆒ㉁࡞㏻㟁≉ᛶࢆ ᭷ࡍࡿ㛗ᑻ⥺ᮦࢆస〇ࡍࡿࡇࡣᐜ࡛᫆ࡣ࡞࠸㸬ࡇࡢࡓࡵ㸪 ⥺ᮦ㛗Ώࡿᆒ㉁ᛶࢆ㧗ศゎ⬟࡛㠀◚ቯⓗホ౯ࡍࡿࡇ ࡀ㸪ࣂࣜ⥺ᮦࡢ㏻㟁≉ᛶ࠾ࡼࡧᆒ୍ᛶྥୖྥࡅ࡚ᙉ ࡃᮃࡲࢀࡿ㸬ᮏ◊✲࡛ࡣ㸪1 m ⛬ᗘࡢ⥺ᮦ㛗ࢆ᭷ࡍࡿࣂࣜ ⥺ᮦࢆస〇ࡋ㸪⮫⏺㟁ὶᐦᗘ Jc ࡢ⥺ᮦ㛗ᡭ᪉ྥศᕸ࠾ ࡼ ࡧ ㉮ ᰝ ࣍ ࣮ ࣝ ⣲ Ꮚ ☢ Ẽ 㢧 ᚤ 㙾 㸦 Scanning Hall-probe Microscopy, SHM㸧[3]ࡼࡿ㏻㟁⮬ᕫ☢⏺ศᕸࢆ ᐃࡋ㸪 ࣂࣜ⥺ᮦࡢᆒ㉁ᛶホ౯ࢆ⾜ࡗࡓ㸬 ᐇ㦂᪉ἲ Powder-in-tube ἲࡼࡾ SrZrO3㸦Bi2212 ࢆ 15wt%ΰྜ㸧 ࢆࣂࣜᮦࡍࡿ 19 ⰺ⥺ᮦࢆస〇ࡋࡓ㸬᭱⤊ⓗᚓࡽࢀ ࡓ⥺ᮦࡢ᩿㠃ᑍἲࡣᖜ 3.7 mm㸪ཌࡉ 0.23 mm ࡛࠶ࡗࡓ㸬 ᭱ึ㸪⥺ᮦࡢ⮫⏺㟁ὶᐦᗘ Jc㸦77 K, ⮬ᕫ☢⏺ୗ㸧ࢆ⥺ ᮦ㛗ᡭ᪉ྥ࠾࠸࡚ 10mm 㛫㝸࡛⾜ࡗࡓ㸬 ᐃ⤖ᯝᇶ࡙ ࠸࡚㑅ᢥࡋࡓ≉ᐃ༊㛫࠾࠸࡚㸪SHM ࡼࡾ㏻㟁⮬ᕫ☢ ⏺ศᕸࢆ ᐃࡋࡓ㸬SHM ࡣヨᩱ㠃ୖ࡛ 2 ḟඖⓗ࣮࣍ࣝ ⣲Ꮚࢆ㉮ᰝࡉࡏ࡞ࡀࡽ☢⏺ ᐃࢆ⾜࠸㸪ヨᩱ㠃ୖࡢ☢⏺ศ ᕸࢆ࣐ࢵࣆࣥࢢࡍࡿ[3]㸬⏝ࡋࡓ࣮࣍ࣝ⣲Ꮚࡢឤ☢㠃✚ࡣ 50ȝm×50ȝm㸪ࣜࣇࢺ࢜ࣇࡣ⣙ 0.5mm ࡛㸪ヨᩱ㠃ᑐࡋ࡚ ἲ⥺᪉ྥࡢ☢⏺ᡂศࢆ᳨ฟࡍࡿ㸬ࢮࣟ☢⏺ୗ࡛ヨᩱࢆ 77K ෭༷ࡋ㸪0~ Ic ࡢ┤ὶ㟁ὶࢆ㏻㟁ࡋࡓࡁࡢ⮬ᕫ☢⏺ศᕸ ࢆ㸪⥺ᮦ㛗ᡭ᪉ྥ࣭ᖜ᪉ྥඹ 0.2mm 㛫㝸࡛ ᐃࡋࡓ㸬 ⤖ᯝ࣭⪃ᐹ Fig. 1 ࣂࣜ⥺ᮦ㸦㠀ࢶࢫࢺ㸧ࡢ⥺ᮦ㛗ᡭ᪉ྥ࠾ ࡅࡿ 77 K㸪⮬ᕫ☢⏺ୗ࡛ࡢ Jc ศᕸࢆ♧ࡍ㸬Jc ࡢᖹᆒ್ࡣ 21.2 kA/cm2 ࡛࠶ࡾ㸪ᶆ‽೫ᕪࡀ 7%௨ୗࡢᆒ୍ᛶࢆ᭷ࡍࡿ ࣓࣮ࢺࣝ⣭ࡢࣂࣜ⥺ᮦࢆస〇ࡍࡿࡇࡀ࡛ࡁࡓ㸬 SHM ࡼࡿ⮬ᕫ☢⏺ศᕸ ᐃࡣ㸪㧗 Jc ༊㛫ࡋ࡚ x = 240-280mm㸪ప Jc ༊㛫ࡋ࡚ x = 710-750mm ࡢྛ 40mm 㛗 ࡢ༊㛫ᑐࡋ࡚ᐇࡋࡓ㸬୧༊㛫࡛ࣔࢽࢱ࣮ࡋࡓ⮫⏺㟁ὶ Ic ᑐࡋ࡚ 50%ࡢ┤ὶ㟁ὶ I ࢆ㏻㟁ࡋࡓࡁࡢ⮬ᕫ☢⏺ Bz ࡢศᕸࢆ Fig. 2 ♧ࡍ㸬ᅗ࠾࠸࡚㸪x ᪉ྥࡣ⥺ᮦ㛗ᡭ᪉ ྥ㸪y ᪉ྥࡣ⥺ᮦᖜ᪉ྥྛࠎᑐᛂࡋ㸪◚⥺ࡣ⥺ᮦ⨨࡛ ࠶ࡿ㸬㧗 Ic ༊㛫㸦Fig. 2(a)㸧࡛ࡣ㛗ᡭ᪉ྥࡰᆒ୍࡞☢ ⏺ศᕸ࡞ࡗ࡚࠸ࡿࡀ㸪ప Ic ༊㛫㸦Fig. 2(b)㸧࡛ࡣ x = 730-740mm ࠾࠸࡚ഹ☢⏺ศᕸࡀࢀ࡚࠸ࡿ㸬 ࡼࡾヲ⣽⪃ᐹࡍࡿࡓࡵ㸪Fig. 2 ࡢ⤖ᯝࡽ⟬ฟࡋࡓ dBz/dy ࡣ㸪 y ᪉ྥᕪศ dBz/dy ࡢ 2 ḟඖศᕸࢆ Fig. 3 ♧ࡍ㸬 ほ Ⅼ࠾࠸࡚⥺ᮦ㛗ᡭ᪉ྥὶࢀࡿࢩ࣮ࢺ㟁ὶࡢࡁ ࡉᙉ࠸┦㛵ࡀ࠶ࡿ㸬㧗 Ic ༊㛫㸦Fig. 3(a)㸧࡛ࡣ㸪dBz/dy ࡣ⥺ᮦ㛗ᡭ᪉ྥࡰ୍ᵝ࡞ศᕸࢆ♧ࡋ࡚࠾ࡾ㸪 ᐃ⠊ᅖ ෆ㟁ὶ㍺㏦ࢆࡁࡃ㜼ᐖࡍࡿ⟠ᡤࡀᏑᅾࡋ࡞࠸ࡇࡀ ศࡿ㸬ࡲࡓ㸪⥺ᮦᖜ᪉ྥ࠾࠸࡚ࡣ㸪➃㒊ẚ㍑ࡋ࡚୰ ᚰ㒊ࡢ dBz/dy ࡣపࡃ㸪0.5Ic ࡛ࡣ୰ᚰ㒊ࡣࢇ㟁ὶ ࡣὶࢀ࡚࠸࡞࠸ࡇࡀ♧၀ࡉࢀࡿ㸬ࡇࡢഴྥࡣࣂࣜࢆᑟ ධࡋ࡚࠸࡞࠸㏻ᖖࡢከⰺ⥺ᮦྠᵝ࡛࠶ࡿ㸬୍᪉㸪ప Ic ༊㛫㸦Fig. 3(b)㸧࡛ࡣ㸪 ᐃ༊㛫ෆ࠾࠸࡚ Ic ࡢ᭱ࡶప࠸ x = 730-740mm ࠾࠸࡚ dBz/dy ࡢศᕸࡀࢀ࡚࠸ࡿ⟠ᡤࡀ ᩿⥆ⓗ☜ㄆࡉࢀࡓ㸬ࡇࡢ㒊࡛ࡣ㸪ᅽᘏຍᕤⓎ⏕ࡋ ࡓ⥺ᮦෆࡢᵓ㐀ࡢࢀ➼ࡼࡾ㏻㟁≉ᛶ㸦Jc㸧ࡀ᩿⥆ⓗ పୗࡋ࡚࠾ࡾ㸪ࡇࢀࡽࡢ≉ᛶపୗ㡿ᇦ࠾࠸࡚㟁ὶ㍺㏦㡿 ᇦ㸦⮬ᕫ☢⏺ධ㡿ᇦ㸧ࡀࡼࡾෆᒙࡢࣇ࣓ࣛࣥࢺ㐍ᒎ ࡋ࡚࠸ࡿࡇࡀ♧၀ࡉࢀࡿ㸬 -5 710 (b) 720 730 x (mm) 740 750 Tape edges -2.5 Fig. 3. Contour maps for differentials of self-field dBz/dy on barrier tape at (a) x = 240-280 mm with high Ic (= 47 A) and (b) x = 710-750 mm with low Ic (= 38 A). ㅰ㎡ ᮏ◊✲ࡢ୍㒊ࡣ㸪⛉Ꮫ◊✲㈝⿵ຓ㔠㸦No. 20686020, No. 22560270㸧㸪(㈈)▮ᓮ⛉Ꮫᢏ⾡⯆グᛕ㈈ᅋዡບ◊✲ຓᡂ ࠾ࡼࡧ(㈈)ᖾ㈈ᅋᏛ⾡◊✲ຓᡂࡢᨭࡼࡾᐇࡋࡓ㸬 ཧ⪃ᩥ⊩ [1] R. Inada, et al.: Supercond. Sci. Technol. 22 (2009) 085014. [2] R. Inada, et al.: Adv. Sci. Technol. 75 (2010) 181. [3] A. Oota, et al.: Rev. Sci. Instrum. 70 (1999) 184-186. ― 120 ― 第83回 2010年度秋季低温工学・超電導学会 1P-p24 Bi 系線材 (1) Bi2223 䝞䝸䜰⥺ᮦ䛾ὶᆶ┤☢⏺ୗ䛷䛾䝣䜱䝷䝯䞁䝖㛫⤖ྜ≉ᛶ䛾ホ౯ Interfilamentary coupling properties of Bi2223 tapes with interfilamentary resistive barriers in AC perpendicular magnetic field ✄⏣ ுྐ㸪ዟᮧ ᗣ⿱㸪ኴ⏣ ⏨㸦㇏ᶫᢏ⛉㸧; ᮤ ᡂᒣ㸪ᙇ ᖹ⚈㸦す᭷Ⰽ㔠ᒓ◊✲㝔㸧 INADA Ryoji, OKUMURA Yasuhiro, OOTA Akio (TUT); LI Chengshan, ZHANG Pingxiang (NIN) E-mail: [email protected] 1. ࡣࡌࡵ ᡃࠎࡣ㸪㉸㟁ᑟࣇ࣓ࣛࣥࢺ㛫㓟≀ࣂࣜࢆᑟධࡋ ࡓపᦆኻ Bi2223 ⥺ᮦࡢ㛤Ⓨ㛵ࡍࡿ◊✲ࢆ㐍ࡵ࡚࠸ࡿ [1],[2] ࠋࡇࢀࡲ࡛㸪SrZrO3 ࣂࣜࢆᑟධࡋ㸪ࣂࣜࡢᑟධ ཌ㸪⥺ᖜ࠾ࡼࡧࢶࢫࢺ㛗ࢆไᚚࡍࡿࡇ࡛㸪⮫⏺㟁ὶᐦ ᗘ Jc > 104 A/cm2㸦77 K㸪⮬ᕫ☢⏺ୗ㸧ࢆ⥔ᣢࡋࡓୖ࡛㸪 ⥺ᮦ㠃ᆶ┤࡞ᶓ☢⏺ୗ࡛ࡢ⤖ྜ࿘Ἴᩘ fc㸦= 1/2SWc, Wc㸸 ⤖ྜᐃᩘ㸧ࢆ 250 Hz ௨ୖྥୖ࡛ࡁࡿࡇࢆ♧ࡋࡓ[2]ࠋ ࡇࢀక࠸㸪ྠ୍ᑍἲ࡛ࣇ࣓ࣛࣥࢺྠኈࡀ㟁☢⤖ ྜࡋࡓ⥺ᮦẚ㍑ࡋ࡚㸪ၟ⏝࿘Ἴᩘᇦ࡛ 4050%⛬ᗘࡢᆶ ┤☢⏺ᦆኻࡢపῶࢆ☜ㄆࡋࡓࠋ୍᪉࡛㸪ᮏࣂࣜ⥺ᮦࡢᦆ ኻⓎ⏕せᅉࢆᢕᥱࡍࡿࡇࡣ㸪ᚋ᭦࡞ࡿపᦆኻࢆᅗࡿ ୖ࡛㔜せ࡛࠶ࡿࠋᮏ◊✲࡛ࡣ㸪fc > 250 Hz ࢆ᭷ࡍࡿࣂࣜ ⥺ᮦࡘ࠸࡚㸪ᆶ┤☢⏺ୗ࡛ࡢὶᦆኻ≉ᛶࢆ⣔⤫ⓗホ ౯ࡋࡓࠋᐇ㦂⤖ᯝᇶ࡙࠸࡚㸪ࣇ࣓ࣛࣥࢺ㛫⤖ྜ≉ᛶ࠾ ࡼࡧၟ⏝࿘Ἴᩘᇦ࡛ࡢᦆኻపῶࡢ㜼ᐖᅉᏊࢆ⪃ᐹࡋࡓࠋ 2. ᐇ㦂᪉ἲ Powder-in-tube ἲ࡛స〇ࡋࡓ Bi2223 ࣂࣜ⥺ᮦ㸦ࢶࢫ ࢺ㛗 Lt = 4 mm㸧ࢆヨᩱࡋ࡚⏝࠸ࡓ[1],[2]ࠋࣂࣜᮦࡣ SrZrO3㸦ຍᕤᛶᨵၿࡢࡓࡵ Bi2212 ࢆᑡ㔞ΰྜ㸧ࢆ⏝ࡋ ࡓࠋᮏ⥺ᮦࡢᶓ᩿㠃ᑍἲࡣ 2.7 mm u 0.23 mm㸪ࣇ࣓ࣛࣥ ࢺ༨✚⋡ࡣ 23%⛬ᗘ㸪┤ὶᅄ➃Ꮚἲ࡚ホ౯ࡋࡓ⮫⏺㟁ὶ ᐦᗘ Jc ࡣ 1.25 u 104 A/cm2㸦77 K㸪⮬ᕫ☢⏺ୗ㸧࡛࠶ࡿࠋ ὶᦆኻ Qm ࡣ 77 K㸪⥺ᮦ㠃ᆶ┤࡞ὶ☢⏺ୗ࡚ࣆࢵ ࢡࢵࣉࢥࣝἲࡼࡾ ᐃࡋࡓࠋ 3. ⤖ᯝ࣭⪃ᐹ ప☢⏺ᖜୗ࡛ࡢᦆኻࡢ࿘Ἴᩘ౫Ꮡᛶࡼࡾ㸪ᮏ⥺ᮦࡢ⤖ ྜ࿘Ἴᩘ fc ࡣ 260 Hz㸦⤖ྜᐃᩘWc = 0.6 ms㸧ぢ✚ࡶࡽ ࢀࡓ[2]ࠋFig. 1 ᦆኻࣇࢡࢱ qm㸦=P0Qm/2B02Stape, Stape: ⥺ ᮦᶓ᩿㠃✚㸧ࡢ☢⏺ᖜ㸦B0㸧౫Ꮡᛶࢆ♧ࡍࠋqm ࡀᴟ ࢆ♧ࡍ☢⏺ᖜ Bmax ࡣ㸪㐠㌿᮲௳ୗ࠾ࡅࡿ⥺ᮦࡢ୰ᚰ ฿㐩☢⏺ Bp ࡰ୍⮴ࡍࡿࡇࡀ▱ࡽࢀ࡚࠸ࡿࠋᅗࡼࡾ Bmax ࡣ 105 Hz ௨ୗ࡛ࡣ࿘Ἴᩘ fop ࡼࡽࡎࡰ୍ᐃ࡛࠶ࡾ㸪 ࣇ࣓ࣛࣥࢺࡀ⤖ྜࡋࡓሙྜ㸦ᐇ⥺㸧ẚ㍑ࡋ࡚㸪70%⛬ ᗘప☢⏺ഃࢩࣇࢺࡋ࡚࠸ࡿࠋࡇࢀࡼࡾ㸪 ᐃᦆኻ୰ྵ ࡲࢀࡿࣄࢫࢸࣜࢩࢫᦆኻ Qh ࡣ㸪ᑡ࡞ࡃࡶ 105 Hz ௨ୗ࡛ ࡣ fop ౫Ꮡࡏࡎࡰ୍ᐃ࡛࠶ࡿࡇࡀ♧၀ࡉࢀࡿࠋ୍᪉㸪 qm ࡢ⤯ᑐ್ࡣ fop ඹ༢ㄪቑຍࡋ࡚࠸ࡿࠋ ᐃ᮲௳ୗ ࡛ࡣ㸪ࢩ࣮ࢫ୰࡛Ⓨ⏕ࡍࡿ 㟁ὶᦆኻ Qe ࡣ Qm ᑐࡋ࡚ᴟ ࡵ࡚ᑠࡉࡃ㸪Fig. 1 ♧ࡍ࿘Ἴᩘቑక࠺ᦆኻቑຍࡣ㸪 ⤖ྜᦆኻ Qc ㉳ᅉࡍࡿ᥎ ࡉࢀࡿࠋ ௨ୖࢆ⪃៖ࡋ࡚㸪ᅛᐃ☢⏺ᖜୗ࠾࠸࡚ ᐃࡋࡓᦆኻ ࡢ࿘Ἴᩘ౫Ꮡᛶ㸦Fig. 2㸧ᑐࡋ࡚㸪௨ୗࡢᘧࢆࣇࢵࢸ ࣥࢢࡋ Qh Qc ࡢศ㞳ࢆヨࡳࡓ㸦Z = 2Sfop㸪qc: ᐃᩘ㸧ࠋ Qm Q h Qc Qh q c ZW c 1 ZW c 2 (1) Fig. 3 45 Hz ࠾ࡅࡿྛᦆኻᡂศࡢẚ㍑ࢆ♧ࡍࠋB0 > 10 mT ࠾࠸࡚㸪Qh ࡣ B01 ẚࡋ࡚ቑࡋ㸪⤖ྜ㸦ᐇ⥺㸧 ẚ㍑ࡋ࡚ 7080%ࡁࡃపῶࡉࢀ࡚࠸ࡿࠋ୍᪉㸪Qc ࡣ B02 ẚࡋ࡚ቑࡋ࡚࠸ࡿࠋB0 a 30 mT ࠾࠸࡚୧⪅ࡢ ࢡࣟࢫ࣮࢜ࣂ࣮ࡀ⏕ࡌ㸪⤖ᯝࡋ࡚ Qm ࡣ Qh ࡢ 2 ಸ௨ୖ ቑຍࡋ࡚࠸ࡿࠋ௨ୖࡼࡾ㸪Qc ࡢᐤࡀᮏ⥺ᮦࡢ 50 Hz ㏆ഐ࡛ࡢᦆኻపῶࢆไ㝈ࡋ࡚࠸ࡿࡇࡀ☜ㄆࡉࢀࡓࠋ Fig. 1. Normalized loss factor qm = P0Qm/2B02Stape for twisted barrier tape at different operating frequencies fop. Fig. 2. Fitting results for frequency dependence of losses Qm for twisted barrier tape by (1) at different field amplitudes B0. Fig. 3. Comparison between hysteresis loss Qh, coupling loss Qc and total loss Qm at 77 K and 45 Hz for twisted barrier tape. ㅰ㎡ ᮏ◊✲ࡢ୍㒊ࡣ㸪⛉Ꮫ◊✲㈝⿵ຓ㔠㸦No. 20686020, No. 22560270㸧࠾ࡼࡧ(㈈)ᖾ㈈ᅋᏛ⾡◊✲ຓᡂࡢᨭࡼࡾ ᐇࡉࢀࡓࠋ ཧ⪃ᩥ⊩ [1] R. Inada, et al.: Supercond. Sci. Technol. 22 (2009) 085014. [2] R. Inada, et al.: Adv. Sci. Technol. 75 (2010) 181. ― 121 ― 第83回 2010年度秋季低温工学・超電導学会 1P-p25 Bi 系線材 (1) %L ࡢ 6U &D ࡢ⨨ຠᯝࡼࡿ 7F ࡢኚ Changing of Tc by substitutional effect of Ca for Sr of Bi-2223 ᳃ ♸ࠊụ⏣ ༤(⟃Ἴ) MORI Yusuke, IKEDA Hiroshi (University of Tsukuba) E-Mail: [email protected] ࡋࡓᐇ㦂⤖ᯝẚ㍑ࢆ⾜ࡗࡓࠋࡑࡢ⤖ᯝ Ca ࢧࢺ࠾࠸ ࡣࡌࡵ Bi-2223 ࡣ 110K[1]ࡢ㉸ఏᑟ㌿⛣ ᗘ(௨ୗ Tc)ࢆᣢࡘ Bi ࡚ࡣ༙࢜ࣥᚄࡢࡁࡉ౫ࡽࡎ Tc ࡀῶᑡࡍࡿ[2]ࡢᑐ ⣔㖡㓟≀㧗 ㉸ఏᑟయࡋ࡚▱ࡽࢀ࡚࠸ࡿࠋ୍᪉ ࡋࠊSr ࢧࢺ࠾࠸࡚ࡣ Fig.2 ࡢࡼ࠺࡞ࡿ⯙࠸࡛ࡣ࠶ Bi-2223 ఝࡓ⤖ᬗᵓ㐀ࢆᣢࡕ Tc ࡀ 125K ࡢ Tl-2223 ࡿࡀࠊTc ࡀୖ᪼ࡍࡿഴྥࡀ࠶ࡿࡇࡀࢃࡗࡓࠋࡇࡢ⤖ ࠸࠺≀㉁ࡀ࠶ࡿࠋBi-2223 ࡣᩳ᪉ᬗࠊTl-2223 ࡣṇ᪉ᬗ࡞ ᯝࢆ㋃ࡲ࠼ࠊSrЍCa ࡢ⨨ࢆ⾜ࡗࡓࡇ࡛࡞ࡐ㹖⥺ࡢࣆ ⤖ᬗᵓ㐀㐪࠸ࡀ࠶ࡿࠋᡃࠎࡣࡇࡢ⤖ᬗᵓ㐀ࡢ㐪࠸ࡽ ࣮ࢡࡢࡎࢀ Tc ࡢࡿ⯙࠸ࡀ୍⮴ࡍࡿഴྥࡀ⏕ࡌࡓࠊ Bi-2223 ࢆ Tl-2223 ㏆࡙ࡅࡿࡇࡼࡾ Tc ࡀྥୖࡍࡿ ࡲࡓ Sr ࢧࢺ࡛ࡢඖ⣲ࢆ⨨ࡋࡓሙྜࡘ࠸࡚ࡶ᫂ࡽ ࡢ࡛ࡣ⪃࠼ࡓࠋᐇ㝿㐣ཤᡃࠎࡢ◊✲ᐊ࡛ Ca ࢧࢺ ࡍࡿᚲせࡀ࠶ࡿࠋᙜ᪥ࡣ Sr ࡢ୍㒊ࢆ Ba ⨨ࡁ࠼ ࠾࠸࡚ඖ⣲⨨ࡀ⾜ࢃࢀࡓ◊✲ࡼࡿ༙࢜ࣥᚄࡢ ᐇ㦂ࡋࡓࡶࡢࡘ࠸࡚ࡶྜࢃࡏ࡚ሗ࿌ࡍࡿணᐃ࡛࠶ࡿࠋ ࡁࡉ౫ࡽࡎ Tc ࡀῶᑡࡍࡿࡇࡀࢃࡗ࡚࠸ࡿࠋ୍᪉ Sr ࢧࢺ࡛ࡣඖ⣲⨨ࡼࡿ Tc ࡢᙳ㡪ࡘ࠸࡚ࡣㄪࡽࢀ ࡚࠸࡞࠸ࠋࡑࡇ࡛ᅇ Sr ࡢ୍㒊ࢆ༙࢜ࣥᚄࡀ␗࡞ࡾࠊ ྠࡌࣝ࢝ࣜᅵ㢮㔠ᒓ࡛࠶ࡿ CaࠊBa(Ca㸺Sr㸺Ba)ࡑ ࢀࡒࢀ⨨ࡁ࠼ࡿࡇ࡛ Tc ࡢࡼ࠺࡞ኚࡀぢࡽࢀࡿ ㉸ఏᑟ≉ᛶࡼࡾㄪࡓࠋ ᐇ㦂᪉ἲ ཎ⢊㔞 99.99%௨ୖࡢ⢊ᮎ Bi2O3ࠊPbOࠊSrCO3ࠊCaCO3ࠊ CuOࠊࢆ Bi1.84Pb0.34Sr1.91-xCaxCa2.03Cu3.06Oy(௨ୗ SrЍ Ca)࠸࠺ Sr ࡢ୍㒊ࢆ Ca ⨨ࡁ࠼ࡓࣔࣝẚ࡛⛗㔞ࡋࠊ x ࢆ 0 ࡽ 0.06 ࡲ࡛ኚࡉࡏィ 5 ࡘࡢ⤌ᡂ࡛ヨᩱస〇ࡋ Fig.1 ࡓࠋ↝ᡂࡣ✵Ẽ୰࡛ 780Υ12 㛫௬↝ࡁࢆ⾜ࡗࡓࠋࡑࡢ for samples with x in the present ᚋࣝࢦࣥࠊ㓟⣲㞺ᅖẼ୰࡛ 866Υ60 㛫ࡢ୍ḟ↝ᡂࠊ Bi1.84Pb0.34Sr1.91-xCaxCa2.03Cu3.06Oy system. Powder X-ray diffraction patterns 868Υ60 㛫ࡢḟ↝ᡂࢆ⾜ࡗࡓࠋᚓࡽࢀࡓヨᩱࡣ X ⥺ ᅇᢡ⨨ࡽヨᩱࡢྠᐃࢆ⾜࠸ࠊTc ࢆồࡵࡿࡓࡵ MPMS ⨨ࢆ⏝࠸࡚ࠊ☢≉ᛶࢆㄪࡓࠋ ᐇ㦂⤖ᯝ Fig.1 ࡣ SrЍCa ࡢヨᩱ࠾࠸࡚⢊ᮎ X ⥺ᅇᢡ ᐃࡼ ࡾᚓࡽࢀࡓࢹ࣮ࢱ࡛࠶ࡿࠋ4.5rࡢⅬ࡛(002)㠃ࣆ࣮ࢡࢆ ᣢࡘࡇࡽࡢ⤌ᡂ࠾࠸࡚ࡶ Bi-2223 ༢┦ࢆᣢࡘࡇ ࡀࢃࡿࠋFig.2 ࡣ୍ḟ↝ᡂࠊḟ↝ᡂᚋࡢ☢≉ᛶ ࡽ☢ࡀ-0.025(emu/g)࡞ࡿⅬࢆᇶ‽ࡋࠊ㓟⣲㔞ࡣ୍ ᐃ࡛࠶ࡿ௬ᐃࡋ࡚ồࡵࡓ Tc ࡢࡿ⯙࠸ࢆ♧ࡋࡓࡶࡢ࡛ Fig.2 x dependence of Tc obtained from ࠶ࡿࠋḟ↝ᡂࡘ࠸࡚╔┠ࡍࡿࠊx=0.02 ࡢ⤌ᡂ࡛᭱ ࡢ Tc ࢆᣢࡕ 0.5K ⛬ᗘ Tc ࡣୖ᪼ࡋ࡚࠸ࡿࡇࡀࢃࡗ magnetization characteristic. ࡓࠋࡉࡽ x ࢆ 0.02 ࡼࡾࡁࡃࡍࡿᚎࠎῶᑡࡍࡿഴ ཧ⪃ᩥ⊩ ྥ࠶ࡿࠋࡑࡋ࡚ࡇࡢࡼ࠺࡞ Tc ࡢࡿ⯙࠸ࡀ X ⥺࠾࠸ [1]V. F. Shamray, et al.:Crystallography Reports Vol.54 No.4 (2009) ࡚ 25rࡽ 30rࡢ⠊ᅖ࠾࠸࡚ᣑࡋࡓᅗࡢ♧ࡍࣆ࣮ࢡ p.584-590 ࡢࡎࢀࡀ Tc ࡢኚᑐᛂࡋ࡚࠸ࡿᛮࢃࢀࡿࠋࡇࢀࡽࡢ [2]R. Yoshizaki, et al.: Advances in Superconductivity vol.3, (1991) ⤖ᯝ㐣ཤ⾜ࢃࢀࡓ Ca ࢧࢺࡢ୍㒊ࢆ LaࠊGd ࡛⨨ p.483-486 ― 122 ― 第83回 2010年度秋季低温工学・超電導学会 1P-p26 交流損失 㕲ᚰ୰䛻䛚䛡䜛㧗 ㉸ఏᑟ⥺ᮦ䛾ὶᦆኻ≉ᛶ㻌 㻭㻯㻌㼘㼛㼟㼟㻌㼏㼔㼍㼞㼍㼏㼠㼑㼞㼕㼟㼠㼕㼏㼟㻌㼛㼒㻌㻴㼀㻿㻌㼠㼍㼜㼑㻌㼕㼚㻌㼕㼞㼛㼚㻌 -4 10 1 10 Magnet current I (Apeak) 㻲㼕㼓㻚㻟㻌㻭㻯㻌㼙㼍㼓㼚㼑㼠㼕㼦㼍㼠㼕㼛㼚㻌㼘㼛㼟㼟㻌㼕㼚㻌㼕㼞㼛㼚㻌㼏㼛㼞㼑㻌 10-1 f = 30Hz 10 10 Ib -2 0A 1.0A(0.2mT) 2.0A(0.7mT) 3.0A(2.0mT) 4.0A(5.2mT) 5.0A(11mT) 6.0A(18mT) 7.0A(26mT) 8.0A(36mT) -3 10-420 40 60 100 Transport current Im(Apeak) 㻲㼕㼓㻚㻠 㼀㼛㼠㼍㼘 㼘㼛㼟㼟 㼕㼚 㼕㼞㼛㼚 㼏㼛㼞㼑 㻲㼕㼓㻚㻝㻌㻭㼞㼞㼍㼚㼓㼑㼙㼑㼚㼠㻌㼛㼒㻌㼙㼑㼍㼟㼡㼞㼑㼙㼑㼚㼠㻌㼟㼥㼟㼠㼑㼙㻌 ― 123 ― b Total loss Q㼠㼛㼠㼍㼘 (J/m/cycle) 䜜䛻䜘䜚ᦆኻ䛜ⴭ䛧䛟ቑ䛧䛯䜒䛾䛸䛔䛘䜛䠊㻌 ᅗ䠏䛻䝬䜾䝛䝑䝖㟁ὶ䛾䜏䜢㏻㟁䛧䛯䛸䛝䛾⥺ᮦ䛻⏕䛨䜛☢ ᦆኻ䜢♧䛩䠊䛣䛾⤖ᯝ䜘䜚䠈⣙ 㻟㻭 䛾௨ୖ䛷ᦆኻ䛜⏕䛨₃䜜 ☢⏺䛻䜘䜚☢ᦆኻ䛜⏕䛨䛶䛔䜛䛣䛸䛜䜟䛛䜛䠊ᅗ䠐䛻㕲ᚰ䛻 㻝䡚㻤㻭 䛾ὶ㏻㟁䜢⾜䛔䠈㉸ఏᑟ⥺ᮦ䛻㏻㟁䛧䛯䛸䛝䛾ᦆኻ 䜢♧䛩䠊䛒䜙䛛䛨䜑 ᐃ䛧䛯✵Ὕ୰䛾₃䜜☢⏺䜢䝬䜾䝛䝑䝖㟁 Magnetization loss Qm (J/m/cycle) Transport current loss Qt (J/m/cycle) 㻌 ཱྀ㻌 㐩ኊ䠈๓ᕝ㻌 㐩ஓ䠈ᑠᕝ㻌 ⣧䠈⚟㻌 ⪽䠈ᒸ㻌 ᚭ㞝䠈బ⸨㻌 Ꮥ㞝䠄᪂₲Ꮫ䠅㻧㻌 ୰ᮧ㻌 Ṋᜏ䠄ி㒔Ꮫ䠅㻧㛗ᮧ㻌 ග㐀䠄ᛂ⏝⛉Ꮫ◊✲䠅㻌 㻲㼁㼀㻭㻷㼁㻯㻴㻵㻌㼀㼍㼠㼟㼡㼙㼛㼞㼕䠈㻹㻭㻱㻷㻭㼃㻭㻌㼀㼍㼠㼟㼡㼥㼍䠈㻻㻳㻭㼃㻭㻌㻶㼡㼚䠈㻲㼁㻷㼁㻵㻌㻿㼍㼠㼛㼟㼔㼕䠈㻻㻷㻭㻌㼀㼑㼠㼟㼡㼛䠈㻌 㻿㻭㼀㻻㻌㼀㼍㼗㼍㼛㻔㻺㼕㼕㼓㼍㼠㼍㻌㼁㼚㼕㼢㻚㻕㻧㻺㻭㻷㻭㻹㼁㻾㻭㻌㼀㼍㼗㼑㼠㼟㼡㼚㼑㻔㻷㼥㼛㼠㼛㻌㼁㼚㼕㼢㻕㻧㻻㻿㻭㻹㼁㻾㻭㻌㻷㼛㼦㼛㻔㻾㻵㻭㻿㻕㻌 㻱㻙㼙㼍㼕㼘㻦㻌㼛㼓㼍㼣㼍㻬㼑㼚㼓㻚㼚㼕㼕㼓㼍㼠㼍㻙㼡㻚㼍㼏㻚㼖㼜㻌 㻌 ὶ䛾ᶓ䛻グ㍕䛧䛶䛔䜛䠊ᅗ䜘䜚☢⏺䛜⏕䛨䛯ሙྜ䠈㠀ᖖ䛻 㻝䠊䛿䛨䜑䛻㻌 䛝䛺ᦆኻ䛜⏕䛨䜛䛣䛸䛜♧䛥䜜䛶䛔䜛䠊㻌 ㉸ఏᑟ䝰䞊䝍䜢㛤Ⓨ䛩䜛ୖ䛷䝰䞊䝍䛾㐠㌿ຠ⋡䛻┤⤖ 㕲ᚰ୰䛻䛚䛡䜛㧗 ㉸ఏᑟ⥺ᮦ䛾ᦆኻ䛿㕲ᚰ䛾㓄⨨䛻䜘 䛩䜛㉸ఏᑟ㒊ศ䛾ὶᦆኻ䜢ホ౯䛩䜛䛣䛸䛿㠀ᖖ䛻㔜せ䛷 䜚㠀ᖖ䛻ቑ䛩䜛ྍ⬟ᛶ䜢⛎䜑䛶䛔䜛䠊䛣䜜䛿䠈☢᮰䛾ධ 䛒䜛䠊䛣䛾ሙྜ䠈㉸ఏᑟ⥺ᮦ䛿㔠ᒓ୰䛻ᇙ䜑㎸䜎䜜䛶䛔䜛䛣 㐣⛬䛜㕲ᚰ䛻䜘䜚ᙳ㡪䜢ཷ䛡䜛䛯䜑䛷䛒䜚䠈㕲ᚰ䛾㓄⨨䠈㊥ 䛸䛜ᐃ䛥䜜䛣䛾䛸䛝䛾ᦆኻ≉ᛶ䜢ホ౯䛩䜛ᚲせ䛜䛒䜛䠊䛣䛾 㞳䛻䜘䜚䛝䛟ᙳ㡪䜢ཷ䛡䜛䠊☢ᦆኻ䛻㛵䛧䛶䛿䝰䞊䝍䛷 䜘䛖䛺⫼ᬒ䛛䜙䠈ᮏ◊✲䛷䛿ኚᅽჾ⏝䛾㕲ᚰ୰䛻䛚䛡䜛㉸ఏ ⏝䛩䜛ሙྜ䛿₃䜜☢⏺䛜⏕䛨䜛タィ䛿䛺䛥䜜䛺䛔䛜䠈௬䛻㉸ ᑟ⥺ᮦ䛾ὶᦆኻ䛾≉ᛶ䛻䛴䛔䛶ᐇ㦂䛻䜘䜚ホ౯䜢⾜䛳䛯䠊 ఏᑟ⥺ᮦ䛻ᒁᡤⓗ䛺☢⏺䛜ຍ䜟䜛䛣䛸䛷㠀ᖖ䛻䛝䛺ᦆኻ䛸 ୍⯡ⓗ䛻㉸ఏᑟ䛾ὶᦆኻ䜢ホ౯䛩䜛ሙྜ䠈ᅄ➃Ꮚἲ䛸☢ 䛺䜛䛣䛸䜢␃ព䛩䜛ᚲせ䛜䛒䜛䠊㻌 ἲ䛻䜘䜚 ᐃ䛥䜜䜛䛣䛸䛜䜋䛸䜣䛹䛷䛒䜛䛜䠈ᮏ◊✲䛷䛿㕲 㻌 ᚰ୰䛻䛚䛡䜛ὶᦆኻホ౯䛷䛒䜛䛯䜑㟁Ẽⓗ ᐃἲ䛻䜘䜛 ㅰ㎡㻌 ᐃ䛿ྍ⬟䛷䛒䜛䠊䛣䛾䛯䜑䠈ᮏ◊✲䛷䛿ὶᦆኻ䛻䜘䜚 ᮏ◊✲䛿㻘㻌 ┬䜶䝛䝹䜼䞊㠉᪂ᢏ⾡㛤Ⓨᴗ䛂෭ᶵ୍య ⏕䛨䜛 ᗘୖ᪼䛛䜙ᦆኻ䜢ᑟฟ䛩䜛⇕ⓗ ᐃἲ䛻䜘䜚ᦆኻホ ᆺ㧗 ㉸㟁ᑟㄏᑟྠᮇ㥑ື䝅䝇䝔䝮䛾◊✲㛤Ⓨ䛃䛾୍⎔䛸䛧 ౯䜢⾜䛳䛯䠊㻌 䛶㻘㻌㻺㻱㻰㻻 䛾ጤク䛾䜒䛸䛷ᐇ䛧䛯䜒䛾䛷䛒䜛䠊㻌 㻌 㻞䠊ᐇ㦂ෆᐜ㻌 㔠ᒓ୰䛻䛚䛡䜛㧗 ㉸ఏᑟ⥺ᮦ䛾ὶᦆኻ䜢ホ౯䛩䜛䛯 䜑䠈ᅗ䠍䛻♧䛩䜘䛖䛻ཱྀ䛾Ꮠᆺ䛾ኚᅽჾ⏝䛾㕲ᚰ䛻┤ᚄ 10-2 Frequency Ic=75.3A 㻝㻜㼙㼙 䛾✰䜢㛤䛡䠈䛣䛾୰䛷ὶᦆኻ ᐃ䜢⾜䛳䛯䠊 ᐃ䛻 30Hz -3 40Hz ⏝䛔䛯㧗 ㉸ఏᑟ⥺ᮦ䛿ᖜ 㻞㻚㻤㼙㼙䠈⮫⏺㟁ὶ್䛜 㻣㻡㻚㻟㻭 䛾 10 50Hz 㻮㼕㻞㻞㻞㻟㻛㻭㼓 ⥺ᮦ䜢⏝䛧䠈䛣䛾⥺ᮦ⾲㠃䛻⤯⦕䛧䛯⇕ఏᑐ䜢 㓄⨨䛧ⓎἻ䝇䝏䝻䞊䝹ෆ䛻ᇙ䜑㎸䜣䛷᩿⇕䜢䛧 ᗘୖ᪼ 10-4 䜢 ᐃ䛧䛯䠊☢⏺䛿㏻㟁㟁ὶ䛸ྠ┦䛾☢⏺䜢༳ຍ䛧䛶䛚䜚䠈 䝬䜾䝛䝑䝖㟁ὶ䛜⣙ 㻟㻭 䛾䛸䛝䛻☢Ẽ㣬䛩䜛䜘䛖䛻タィ䛧䛶 -5 10 䛔䜛䠊㻌 Standard 㻌 Norris ellipse -6 10 㻟䠊 ᐃ⤖ᯝ㻌 10 Transport current Im(Apeak) 100 ᅗ䠎䛻䝬䜾䝛䝑䝖㟁ὶ䜢㏻㟁䛧䛶䛔䛺䛔᮲௳䛻䛚䛡䜛㏻㟁 㻲㼕㼓㻚㻞㻌㻭㻯㻌㼠㼞㼍㼚㼟㼜㼛㼞㼠㻌㼏㼡㼞㼞㼑㼚㼠㻌㼘㼛㼟㼟㻌㼕㼚㻌㼕㼞㼛㼚㻌 ᦆኻ䛾࿘Ἴᩘ≉ᛶ䜢♧䛩䠊⦪㍈䛻䠍䝃䜲䜽䝹䞉༢㛗䛥䛒䛯䜚 10-1 䛾㏻㟁ᦆኻ䜢♧䛧䠈ᶓ㍈䛻⥺ᮦ䛾ὶ㏻㟁㟁ὶ䛾Ἴ㧗್䜢 Frequency ♧䛧䛶䛔䜛䠊䖃䛻㕲ᚰ䛾እ䛷 ᐃ䛧䛯ᦆኻ್䠈ᐇ⥺䛻 㻺㼛㼞㼞㼕㼟 30Hz 䛾ᴃ䝰䝕䝹䛛䜙ᑟฟ䛧䛯ᦆኻ್䜢♧䛩䠊㕲ᚰ୰䛻䛚䛡䜛 40Hz -2 10 50Hz ㏻㟁ᦆኻ䛿䠈㕲ᚰ䛜䛺䛔᮲௳䛻ẚ䜉㠀ᖖ䛻䛝䛺್䜢♧䛧 䛶䛔䜛䛣䛸䛜䜟䛛䜛䠊䜎䛯䠈࿘Ἴᩘ≉ᛶ䛿୍⮴䛧䛶䛔䜛䛣䛸䛛䜙 ᦆኻ䛿䝠䝇䝔䝸䝅䝇ⓗ䛻⏕䛨䛶䛔䜛䛣䛸䛜䜟䛛䜛䠊䛣䛾⤖ᯝ䜘䜚䠈 -3 10 ࿘ᅖ䛻㔠ᒓ䛜䛒䜛䛣䛸䛻䜘䜚⮬ᕫ☢⏺䛾ධ㐣⛬䛜ኚ䜟䜚䛣 300 第83回 2010年度秋季低温工学・超電導学会 1P-p27 交流損失 ὶ㏻㟁䞉ὶ☢⏺䛾㟁☢᮲௳䛻䛚䛡䜛┤ὶ㏻㟁䝞䜲䜰䝇䛜㻌 㧗 ㉸ఏᑟ䛾ᦆኻ≉ᛶ䛻ཬ䜌䛩ᙳ㡪㻌 㻵㼚㼒㼘㼡㼑㼚㼏㼑㻌㼛㼒㻌㻰㻯㻌㼛㼒㼒㼟㼑㼠㻌㼠㼞㼍㼚㼟㼜㼛㼞㼠㻌㼏㼡㼞㼞㼑㼚㼠㻌㼛㼚㻌㻭㻯㻌㼘㼛㼟㼟㻌㼏㼔㼍㼞㼍㼏㼠㼑㼞㼕㼟㼠㼕㼏㼟㻌㼕㼚㻌㻴㼀㻿㻌㼠㼍㼜㼑㼟㻌 I(A), B(T) Loss Q(J/m/cycle) 㻌 ᑠᓥ㻌 ⿱ྐ䠈ᰘᒣ㻌 ㄔ䠈Ụᕝ㻌 ᬸᗣ䠈ᑠᕝ㻌 ⣧䠈⚟㻌 ⪽㻘ᒸ㻌 ᚭ㞝䠈బ⸨㻌 Ꮥ㞝䠄᪂₲Ꮫ䠅㻌 㻷㻻㻶㻵㻹㻭㻌㻴㼕㼞㼛㼒㼡㼙㼕䠈㻿㻴㻵㻮㻭㼅㻭㻹㻭㻌㻹㼍㼗㼛㼠㼛㻘㻌㻱㻳㻭㼃㻭㻌㻹㼍㼟㼍㼥㼍㼟㼡㻘㻌 㻌 㻻㻳㻭㼃㻭㻌㻶㼡㼚㻘㻌㻲㼁㻷㼁㻵㻌㻿㼍㼠㼛㼟㼔㼕㻘㻌㻻㻷㻭㻌㼀㼑㼠㼟㼡㼛㻘㻌㻿㻭㼀㻻㻌㼀㼍㼗㼍㼛㻔㻺㼕㼕㼓㼍㼠㼍㻌㼁㼚㼕㼢㻚㻕㻌 㻱㻙㼙㼍㼕㼘㻦㻌㼛㼓㼍㼣㼍㻬㼑㼚㼓㻚㼚㼕㼕㼓㼍㼠㼍㻙㼡㻚㼍㼏㻚㼖㼜㻌 㻌 㻟䠊 ᐃ⤖ᯝ㻌 㻝䠊䛿䛨䜑䛻㻌 ᅗ䠏䛻┤ὶ㏻㟁㟁ὶ 㻵㼛㼒㼒㼟㼑㼠 䜢 㻟㻜㻭䠈ὶ㏻㟁㟁ὶ䛾Ἴ㧗್ ㉸ఏᑟ 㻿㻹㻱㻿 䜔㉸ఏᑟ䝰䞊䝍䞊䛾ෆ㒊䛷䛿┤ὶ᮲௳䛻 ὶᡂศ䛜㔜␚䛧䛶䛔䜛┤ὶ䞉ὶΰྜ᮲௳䛻䛚䛡䜛ᦆኻ≉ 㻵㼙 䜢 㻟㻜㻭 ㏻㟁䛧䛶䛔䜛᮲௳䛷䠈ὶ☢⏺䜢༳ຍ䛧䛯䛾㉸ఏ ᛶ䛾ᢕᥱ䛜ᚲせ䛸䛺䜛䠊⌧ᅾ䜎䛷䠈ᵝ䚻䛺◊✲ᶵ㛵䛻䛚䛔䛶 ᑟ⥺ᮦෆ䛻⏕䛨䜛ᦆኻ䛾ෆヂ䜢♧䛩䠊䛣䛾ᅗ䛿ᶓ㍈䛻ὶ ὶእ㒊☢⏺䠈ὶ㏻㟁䛻䜘䜛ὶᦆኻ≉ᛶ䛾◊✲䛜✚ᴟ እ㒊☢⏺䛾Ἴ㧗್ 㻮㼙䠈⦪㍈䛻୍䝃䜲䜽䝹༢㛗䛥䛒䛯䜚䛾ᦆ ⓗ䛻⾜䜟䜜䛶䛔䜛䛜䠈┤ὶ䞉ὶΰྜ᮲௳䛻䛚䛡䜛ᦆኻホ౯ ኻ 㻽 䜢♧䛩䠊┤ὶ㏻㟁㟁ὶ䛻䜘䜛ᦆኻ䜢ືⓗᢠᦆኻ 㻽㼐㼥㼚䠈 䛿⾜䜟䜜䛶䛔䛺䛔䠊䛭䛣䛷䠈ᮏ◊✲䛿┤ὶ䞉ὶΰྜ㟁☢᮲ ὶ㏻㟁㟁ὶ䛻䜘䜛ᦆኻ䜢㏻㟁ᦆኻ 㻽㼠䠈ὶእ㒊☢⏺䛻䜘 ௳䛸䛧䛶┤ὶ䞉ὶ㏻㟁㟁ὶ䛸ὶ☢⏺䜢⤌䜏ྜ䜟䛫䛯᮲௳ 䜛ᦆኻ䜢 㻽㼙䠈䛣䜜䜙䛾⥲䜢 㻽㼠㼛㼠㼍㼘 䛸䛧䛶䛔䜛䠊ᅗ䜘䜚䠈䛭䜜䛮 䛻䛚䛡䜛ᦆኻホ౯䜢ᐇ㦂䛻䜘䜚ホ౯䜢⾜䛳䛯䠊┤ὶ☢⏺䛻䜘 䜜䛾ᦆኻ䛿ὶ☢⏺䛾ቑຍ䛻క䛔ᦆኻ䛜ቑຍ䛧䛶䛔䜛䛣䛸 䜛ᦆኻ䛾ᙳ㡪䛿⮫⏺㟁ὶ್䛾ኚ䛻䜘䜛ᙳ㡪䛛䜙᥎ 䛩䜛 䛜䜟䛛䜛䠊≉䛻 㻽㼐㼥㼚 䛿 㻜㻚㻜㻜㻡㼀 ㏆䛛䜙ᛴ⃭䛻ᦆኻ䛜ቑ䛧 䛣䛸䛜ྍ⬟䛷䛒䜛䛯䜑䠈ᮏ◊✲䛷䛿┤ὶ䛾䜸䝣䝉䝑䝖㟁ὶ䛜ᦆ 䛶䛔䜛䠊䛣䜜䛻ᑐ䛧䠈ὶ㏻㟁䛻䜘䜚⏕䛨䜛 㻽㼠 䛿ప☢⏺㡿ᇦ ኻ≉ᛶ䛻ཬ䜌䛩ᙳ㡪䛻䛴䛔䛶ホ౯䜢⾜䛳䛯䠊ᦆኻ≉ᛶホ౯ 䛷䛿୍ᐃ䛾್䜢♧䛧䛶䛚䜚䠈☢⏺䛾ቑຍ䛻క䛔ቑຍ䛩䜛䠊㻌 䜢⾜䛖䛾䛻䛒䛯䜚䠈ẚ㍑ⓗ⡆౽䛻 ᐃྍ⬟䛺㟁Ẽⓗ ᐃἲ䛾 ᅗ䠐䛻ὶ☢⏺䜢༳ຍ䛧䛶䛔䜛᮲௳䛷㏻㟁㟁ὶ䛾Ἴ㧗್ ᳨ド䜢⾜䛖䛯䜑䠈⇕ⓗ ᐃἲ䛻䜘䜚ྠ༊㛫ྠ䛻 ᐃ䜢⾜䛔 㻵㼙㻩㻞㻜㻭 䛸ᅛᐃ䛧䠈┤ὶ㏻㟁㟁ὶ 㻵㼛㼒㼒㼟㼑㼠 䜢ኚ䛥䛫䛯䛾ᦆኻ 㟁Ẽⓗ ᐃἲ䛾ጇᙜᛶ䜢☜ㄆ䛧䛶䛛䜙ホ౯䜢⾜䛳䛯䠊㻌 㻽㼠㼛㼠㼍㼘 ≉ᛶ䜢♧䛩䠊ᅗ䜘䜚䠈┤ὶ㏻㟁㟁ὶ䛜 㻞㻜㻭 ௨ୗ䛾䛻䛿 㻌 ὶ䞉┤ὶ㏻㟁㟁ὶ䛾ᙳ㡪䜢ཷ䛡䛪䠈䜋䜌☢ᦆኻ䛻䜘䜚ᦆ 㻞䠊ᐇ㦂ෆᐜ㻌 ኻ䛜Ỵᐃ䛥䜜䜛䠊䛣䜜䛻ᑐ䛧䠈㻟㻜㻭 ௨ୖ䛷䛿ᦆኻ≉ᛶ䛿☢ ┤ὶ䞉ὶΰྜ᮲௳䛻䛚䛡䜛㏻㟁㟁ὶ䛸እ㒊☢⏺䛾Ἴᙧ ᦆኻ䛾≉ᛶ䛛䜙䛝䛟㞳䛩䜛䠊䛣䜜䛿䠈┤ὶ䞉ὶ㏻㟁㟁ὶ 䜢ᅗ䠍䛻♧䛩䠊㏻㟁㟁ὶ䛸እ㒊☢⏺䛾Ἴ㧗್䜢䛭䜜䛮䜜 䛻䜘䜚㉸ఏᑟෆ㒊䛾㟁ὶ䛜㣬䛧䛶䛔䜛≧ែ䛷ὶ☢⏺䜢 ༳ຍ䛧䛯䛯䜑䛷䛒䜛䛸ண䛥䜜䜛䠊㻌 㻵㼙㻘㻮㼙 䛸䛧䠈䜎䛯㏻㟁㟁ὶ䛸እ㒊☢⏺䛾䛝 䛥䜢䛭䜜䛮䜜 㻌 㻵㼛㼒㼒㼟㼑㼠㻘㻮㼛㼒㼒㼟㼑㼠 䛸䛩䜛䠊ᮏᐇ㦂䛷䛿ὶ㏻㟁㟁ὶ䛸ὶ☢⏺䛿࿘ ㅰ㎡㻌 Ἴᩘ䛜 㻢㻜㻚㻠㻴㼦䠈┦䛿ྠ┦䛸䛧䛶䛔䜛䠊ᅗ䠎䛻♧䛩䜘䛖䛻䠈 ᮏ◊✲䛿䠈⛉Ꮫ◊✲㈝⿵ຓ㔠䠄㻞㻞㻣㻢㻜㻞㻜㻡䠅䛻䜘䜚ᐇ䛧䛯䠊㻌 ⮫⏺㟁ὶ್ 㻡㻢㻚㻣㻭 䛾 㻮㼕㻞㻞㻞㻟㻛㻭㼓㻌 ⥺ᮦ㠃䛻ᑐ䛧䛶ᆶ┤䛻ὶ ☢⏺䜢༳ຍ䛧䠈䛣䜜䛸ྠ䛻䝞䜲䝫䞊䝷㟁※䛻䜘䜚┤ὶ䞉ὶ -2 10 ㏻㟁䜢⾜䛳䛯䠊┤ὶ䞉ὶΰྜ㟁☢᮲௳䛻䛚䛡䜛ᦆኻホ౯᪉ Ioffset = 30A, Im = 30A ἲ䛿䠈㟁Ẽⓗ ᐃἲ䛷䛿䠈䝇䝟䜲䝷䝹㟁ᅽ䝸䞊䝗䝹䞊䝥䜢⏝ 䛔䛯ᅄ➃Ꮚἲ䛸䝢䝑䜽䜰䝑䝥䝁䜲䝹䜢⏝䛧䛯☢ἲ䛻䜘䜚ホ 10-3 ౯䜢⾜䛳䛯䠊䜎䛯䠈⇕ⓗ ᐃἲ䛻䜘䜚ホ౯䜢⾜䛖䛯䜑䠈⥺ᮦ䛻 Q ᩿⇕䜢䛧䛣䛾୰ኸ㒊ศ䛾⥺ᮦ⾲㠃 ᗘ䜢⇕ఏᑐ䛻䜘䜚 t ᐃ䜢⾜䛳䛯䠊㻌 Q m -4 10 Q AC and DC mixed electro-magnetic condition j Qtotal 10-5 0.001 Im, Bm 0.01 Magnetic field B (T) 0.1 m Total loss Qtotal(J/m/cycle) 㻲㼕㼓㻚㻟㻌 㻸㼛㼟㼟㻌 㼏㼛㼙㼜㼛㼚㼑㼚㼠㻌 㼕㼚㻌 㻭㻯㻌 㼍㼚㼐㻌 㻰㻯㻌 㼙㼕㼤㼑㼐㻌 㼑㼘㼑㼏㼠㼞㼛㻙㼙㼍㼓㼚㼑㼠㼕㼏㻌㼏㼛㼚㼐㼕㼠㼕㼛㼚㼟㻌㻔㻵㼛㼒㼒㼟㼑㼠㻌㻩㻌㻟㻜㻭㻘㻌㻵㼙㻌㻩㻌㻟㻜㻭㻕 10-2 IOffset, BOffset Time(sec) 㻲㼕㼓㻚㻝㻌㼀㼔㼑㻌㼣㼍㼢㼑㼒㼛㼞㼙㻌㼛㼒㻌㼠㼔㼑㻌㼠㼞㼍㼚㼟㼜㼛㼞㼠㻌㼏㼡㼞㼞㼑㼚㼠㻌㼍㼚㼐㻌㼑㼤㼠㼑㼞㼚㼍㼘㻌 㼙㼍㼓㼚㼑㼠㼕㼏㻌㼒㼕㼑㼘㼐㻌㼕㼚㻌㼍㼚㻌㻭㻯㻌㼍㼚㼐㻌㻰㻯㻌㼙㼕㼤㼑㼐㻌㼑㼘㼑㼏㼠㼞㼛㻙㼙㼍㼓㼚㼑㼠㼕㼏㻌 㼏㼛㼚㼐㼕㼠㼕㼛㼚㻚㻌 m -3 10 Thermo-couple Spiral voltage lead loop I = 20A Voltage tap I offset 0A 10A 20A 30A 40A -4 10 Bi2223/Ag tape Thermal insulation -5 10 0.001 Pick up coil IDC+IAC Voltage tap BAC DC and AC transport current AC external magnetic field 㻲㼕㼓㻚㻞㻌 㻿㼏㼔㼑㼙㼍㼠㼕㼏㻌 㼛㼒㻌 㼠㼔㼑㻌 㼑㼤㼜㼑㼞㼕㼙㼑㼚㼠㼍㼘㻌 㼟㼑㼠㻙㼡㼜㻌 㼒㼛㼞㻌 㼘㼛㼟㼟㻌 㼙㼑㼍㼟㼡㼞㼑㼙㼑㼚㼠㼟㻌㼡㼟㼕㼚㼓㻌㼠㼔㼑㻌㼑㼘㼑㼏㼠㼞㼕㼏㻌㼍㼚㼐㻌㼏㼍㼘㼛㼞㼕㼙㼑㼠㼞㼕㼏㻌㼙㼑㼠㼔㼛㼐 0.01 Magnetic field B (T) 0.1 m 㻲㼕㼓㻚㻠㻌 㻸㼛㼟㼟㻌 㼏㼔㼍㼞㼍㼏㼠㼑㼞㼕㼟㼠㼕㼏㼟㻌 㼣㼕㼠㼔㻌 㻰㻯㻌 㼍㼚㼐㻌 㻭㻯㻌 㼠㼞㼍㼚㼟㼜㼛㼞㼠㻌 㼏㼡㼞㼞㼑㼚㼠㻌㼕㼚㻌㻭㻯㻌㼙㼍㼓㼚㼑㼠㼕㼏㻌㼒㼕㼑㼘㼐 ― 124 ― 第83回 2010年度秋季低温工学・超電導学会 1P-p28 交流損失 積層した超電導 *G%&2 コート線材における交流損失の評価 (YDOXDWLRQRI$&ORVVLQVWDFNHG*G%&2FRDWHGFRQGXFWRUV 谷川 潤弥，木内 勝，小田部 荘司，松下 照男（九工大） 岡元 洋（九州電力）；齊藤 隆（フジクラ）；和泉 輝郎（超電導工学研究所） 7$1,*$:$-XQ\D.,8&+,0DVDUX27$%((GPXQG6RML0$7686+,7$7HUXR.\XVKX,QVWRI7HFK 䇭䇭2.$0272+LURVKL.\XVKX(OHFWULF3RZHU6$,727DNDVKL)XMLNXUD/WG,=80,7HUXR65/ (PDLOWDQLJDZD#DTXDULXVFVHN\XWHFKDFMS 䋲䇭ታ㛎 䇭ᧄ⎇ⓥ䈪↪䈚䈢⹜ᢱ䈲䊐䉳䉪䊤䈮䉋䉍䈘䉏䈢 *G%&2 䉮䊷䊃✢᧚䈪䇮 ⹜ᢱ⻉ర䉕 7DEOH 䈮␜䈜䇯 ✢᧚䈎䉌 PP 㬍PP ⒟ᐲ䈱⹜ᢱ䉕ಾ䉍䈚䈩䈍䉍䇮 ⹜ᢱ 䈣䈔 㔚ዉጀ䈏ෘ䈒䇮 ઁ䈱⹜ᢱ DE 䈲ห䈛✢᧚䈎䉌ಾ䉍䈚 䈢䉅䈱䈪䈅䉎䇯 ᨎ䈱႐ว䈫 ᨎ䈱႐ว䈮䈧䈇䈩䇮 648,' ⏛ ജ⸘䉕↪䈇䈩䊁䊷䊒㕙䈮ု⋥䈮⏛⇇䉕ශട䈚䈢䈫䈐䈱⏛ൻ䈱 䊍䉴䊁䊥䉲䉴䉕᷹ቯ䈚䈢䇯 䉁䈢䇮 ✢᧚䈱ෘ䈘ᣇะ䈮 ᨎ㊀䈰䈩 Ⓧጀ䈚䈢ᤨ䈱䊁䊷䊒䈱㈩⟎䈮䉋䉎ᓇ㗀䉕⺞䈼䈢䇯 ᵹ⏛⇇ᝄ %P 䉕 P7±7 䈫ᄌൻ䈘䈞䇮 䈠䉏䈡䉏䈮䈧䈇䈩䊍䉴䊁䊥 䉲䉴䈱㕙Ⓧ䈎䉌⏛ൻ៊ᄬኒᐲ : 䉕⹏ଔ䈚䈢䇯 7DEOH6SHFL¿FDWLRQRIVSHFLPHQ㫊 6SHFLPHQ 7KLFNQHVVGȝP D E 䉴䊁䊥䉲䉴䈏ዊ䈘䈒䈭䈦䈢䈖䈫䈮࿃䈚䈩䈇䉎䇯 -F 䈱ૐਅ䉕⠨ ᘦ䈚䈢ℂ⺰୯ >@ 䈏 WKHR 䈪䈅䉍䇮 ⹜ᢱ䋱ᨎ䈱႐ว䈱ℂ⺰୯ 䈫ታ㛎୯䈏䉋䈒৻⥌䈚䈩䈇䉎䈖䈫䈏ಽ䈎䉎䇯 䈭䈍䇮 ℂ⺰ᑼ䈱 ⚦䉇 )(0 䈮䉋䉎ℂ⺰⸃ᨆ䈮䈧䈇䈩䈲ᒰᣣ⼏⺰䈜䉎䇯 6 3 3 10 W [J/m cycle] 66 K W [J/m cycle] 䋱䇭䈲䈛䉄䈮 䇭ㄭᐕ䇮 㜞᷷㔚ዉ䊁䊷䊒䉕↪䈇䈢㔚ജᯏེ䈭䈬䈱⎇ⓥ㐿 ⊒䈏䈜䈜䉄䉌䉏䈩䈇䉎䇯 䈖䈱႐ว䇮 ᵹ᧦ઙਅ䈪↢䈛䉎៊ᄬ 䈏ᄢ䈐䈭㗴䈫䈭䉎䇯 㔚ዉ䉮䊷䊃✢᧚䈪䈲㔚ዉጀ䈱ෘ䈘 䈮Ყ䈼䈩䈏㕖Ᏹ䈮ᐢ䈒䇮 ᓥ᧪䈱ᩇᒻ✢᧚╬䈫䈲⇣䈭䉎៊ ᄬ․ᕈ䉕␜䈜䇯 䈖䉏䉌䈱៊ᄬ䈲ᵹᯏེ䈱ᕈ⢻䈮ᄢ䈐䈒ᓇ㗀 䈜䉎䈢䉄䇮 ᱜ⏕䈮ᛠី䈚䈩䈍䈒ᔅⷐ䈏䈅䉎䇯 䉁䈢䇮 ᵹ៊ᄬ 䈲ⶄว䈜䉎䈫䈐䈱䊁䊷䊒䈱㈩⟎╬䈮䉋䈦䈩ᄌൻ䈜䉎䈢䉄䇮 䈖 䈖䈪䈲 ᨎ䈱⒳㘃䈱㆑䈉 *G%D&X2 㱐 䉮䊷䊃✢᧚䈮䈍䈇䈩䇮 648,' ⏛ജ⸘䉕↪䈇䈩䊁䊷䊒㕙䈮ု⋥䈮⏛⇇䉕ශട䈚䈢䈫 䈐䈱㈩⟎䈱㆑䈇䈮䉋䉎⏛ൻ៊ᄬ䈱㆑䈇䉕⹏ଔ䈜䉎䇯 7 10 0 10 10 B [T] 1 10 top–middle–bottom 4 #1 10 #1– #2a– #2b #2b– #1 –#2a #2a– #2b– #1 –2 Bm [T] 10 0 )LJ0DJQHWLFILHOGGHSHQGHQFHRI-F,QVHWRIIXJLUHLVHQ ODUJHGSORWDWKLJKPDJQHWLF¿HOGV -F7>$P@ î î î 䋳䇭⚿ᨐ䈍䉋䈶ᬌ⸛ 䇭)LJ 䈮䋱ᨎ䈱႐ว䈫 ᨎ䈱႐ว䈱ᵹ៊ᄬ䈱⏛⇇ᝄଐ ሽᕈ䉕␜䈜䇯 ૐ⏛⇇䈮䈍䈇䈩 ᨎ䈮Ⓧጀ䈚䈢䈫䈐䈱៊ᄬ䈱ᣇ 䈏ૐ䈇䈖䈫䈏ಽ䈎䉎䇯 䈖䉏䈲䇮 ో䈱 -F 䈏㜞䈇䈾䈬ో㗔ၞ䈪 ៊ᄬ䈏㜞䈇⚿ᨐ䈮䈭䈦䈩䈇䉎䇯 䇭)LJ 䈮ⷙᩰൻ䈚䈢䈠䉏䈡䉏䈱ᵹ៊ᄬ䈱⏛⇇ᝄଐሽᕈ䉕 ␜䈜䇯 ::F 䈲ⷙᩰൻ䈚䈢ᵹ៊ᄬ䈪䈅䉍䇮 ✢᧚䈱䉕 O!Z 䈫䈚䈩 :F P,FʌZG 䈪䈅䉎䇯 䉁䈢䇮 KR ʌ%P ȝ-FG 䈲ⷙᩰൻ 䈚䈢ᵹ⏛⇇ᝄ䈪䈅䉎䇯 䉁䈢ᵹ៊ᄬ䈱᛬䉏ᦛ䈏䉍ὐ䈏ਛ ᔃ㆐⏛⇇ %S 䈪䈅䉎䇯 ታ㛎୯䉕䉎䈫䇮 ૐ⏛⇇䈮䈍䈇䈩 ᨎ䈮Ⓧጀ䈚䈢䈫䈐䈱៊ᄬ䈱ᣇ䈏ૐ䈇䈖䈫䈫䇮 ㈩⟎䈱㆑䈇䈮䉋䉎 ᓇ㗀䈲䈾䈫䉖䈬䈭䈇䈖䈫䈏ಽ䈎䉎䇯 ℂ⺰୯䈱 VLQJOH 䈲䋱ᨎ䈱႐ว䈪䇮 VWDFNV 䈲ή㒢ᨎ䈱႐ว䈱 ៊ᄬ䈪䈅䉎䇯 WKHR 䈲 %HDQ 䊝䊂䊦䉕ቯ䈚䈢ℂ⺰୯䈪䇮 ⹜ ᢱ䋱ᨎ䈱႐ว䈱៊ᄬ䈲䇮 +DOVH 䈱ᑼ >@ 䉕↪䈇䇮 ή㒢ᨎᢙ㊀ 䈰䈢႐ว䈱៊ᄬ䈲 0DZDWDUL 䉌䈱ᑼ >@ 䉕↪䈇䇮 䊌䊤䊜䊷䉺䈪 䈅䉎 -F 䈲⥄Ꮖ⏛⇇ਛ䈮䈍䈔䉎୯䉕↪䈇䈢䇯 %%S 䈪䈲䇮 : 䈲 % 䈱 ਸ਼䈮Ყ䈚䇮 %䇭!%S 䈪䈲䇮 % 䈱䋱ਸ਼䈮Ყ䈜䉎䇯 䈚 䈎䈚䇮ታ㛎⚿ᨐ䉕䉎䈫䇮%䇭!%S 䈪䈲 ਸ਼䉋䉍ૐ䈇୯䈫䈭䈦䈢䇯 䈖䉏䈲䇮 㜞⏛⇇㗔ၞ䈪䈲 -F 䈏ૐਅ䈚䇮 䈠䉏䈮䈇⏛ൻ䈱䊍 )LJ0DJQHWLF¿HOGDPSOLWXGHGHSHQGHQFHRIPDJQHWL]DWLRQ ORVVGHQVLW\DW. 謝辞 䇭ᧄ⎇ⓥ䈲䇮 䉟䉾䊃䊥䉡䊛♽㔚ዉ㔚ജᯏེᛛⴚ㐿⊒䈱৻Ⅳ䈫 䈚䈩䇮 ,67(& 䉕ㅢ䈛䈩 1('2 䈎䉌䈱ᆔ⸤䉕ฃ䈔䈩ታᣉ䈚䈢䉅 䈱䈪䈅䉎䇯 参考文献 >@05+DOVH-3K\V' >@<0DZDWDUL3K\V5HY% ― 125 ― 第83回 2010年度秋季低温工学・超電導学会 1P-p29 交流損失 㻾㻱㻮㻯㻻 ㉸㟁ᑟ䝔䞊䝥⥺ᮦ䛾ὶᦆኻ≉ᛶ䠄㻡䠅㻌 㻌 䌦㻌㼀㻲㻭㻙㻹㻻㻰 ἲ䛷〇స䛥䜜䛯 㼅㻮㻯㻻 ㉸㟁ᑟ 㻡 ศ䝔䞊䝥⥺ᮦ㻌 䌦㻌 㻭㻯㻌㼘㼛㼟㼟㻌㼜㼞㼛㼜㼑㼞㼠㼥㻌㼛㼒㻌㻾㻱㻮㻯㻻㻌㼏㼛㼍㼠㼑㼐㻌㼟㼡㼜㼑㼞㼏㼛㼚㼐㼡㼏㼠㼛㼞㻌㻔㻡㻕㻌 㻙㻌 㻌 㻡㻙㼒㼕㼘㼍㼙㼑㼚㼠㼑㼐㻌㼅㻮㻯㻻㻌㼏㼛㼍㼠㼑㼐㻌㼏㼛㼚㼐㼡㼏㼠㼛㼞㻌㼎㼥㻌㼀㻲㻭㻙㻹㻻㻰㻌㼜㼞㼛㼏㼑㼟㼟㻌 㻌 㻙㻌 ᯘ㻌 ༟▮䠈୰ᮧ㻌 ⪽㻘㻌 ᕝᔘ㻌 ᇶᘯ㻘㻌 㔝ୖ㻌 ᗈྖ㻘㻌 ᒾ⇃㻌 ᡂ༟㻘㻌 ⯪ᮌ㻌 ኵ䠄䠅䠗㻌 ᥬᩫ㻌 㢧㻘㻌 ᒣ⏣㻌 ✨㻘㻌 Ἠ㻌 ㍤㑻㻘㻌 ሷཎ㻌 ⼥䠄㻿㻾㻸䠅㻧ᩪ⸨㻌 㝯㻘㻌 㣤ᓥ㻌 ᗣ⿱䠄䝣䝆䜽䝷䠅䠗㻌 㻴㻭㼅㻭㻿㻴㻵㻌㼀㼍㼗㼡㼥㼍䠈㻺㻭㻷㻭㻹㼁㻾㻭㻌㻿㼛㼟㼡㼗㼑㻘㻌㻷㻭㼃㻭㻿㻭㻷㻵㻌㻹㼛㼠㼛㼔㼕㼞㼛㻘㻌㻺㻻㻳㻭㻹㻵㻌㻷㼛㼖㼕㻘㻌㻵㼃㻭㻷㼁㻹㻭㻌㻹㼍㼟㼍㼠㼍㼗㼍㻘㻌㻲㼁㻺㻭㻷㻵㻌㻷㼍㼦㼡㼛㻔㻷㼥㼡㼟㼔㼡㻙㻌 㼁㼚㼕㼢㻚㻕㻧㻌㻵㻮㻵㻌㻭㼗㼕㼞㼍㻘㻌㼅㻭㻹㻭㻰㻭㻌㼅㼡㼠㼍㼗㼍㻘㻌㻵㼆㼁㻹㻵㻌㼀㼑㼞㼡㼛㻘㻌㻿㻴㻵㻻㻴㻭㻾㻭㻌㼅㼡㼔㻔㻵㻿㼀㻱㻯㻕㻧㻌㻿㻭㻵㼀㻻㻌㼀㼍㼗㼍㼟㼔㼕㻘㻌㻵㻶㻵㻹㻭㻌㼅㼍㼟㼡㼔㼕㼞㼛㻔㻲㼡㼖㼕㼗㼡㼞㼍㻌㻸㼠㼐㻚㻕㻌 㻱㻙㼙㼍㼕㼘㻦㻌㼠㼍㼗㼡㻤㻤㻠㻬㼟㼏㻚㼗㼥㼡㼟㼔㼡㻙㼡㻚㼍㼏㻚㼖㼜㻌 ᗘ䛾᭤⥺䛜୍䛴䛾䝬䝇䝍䞊䜹䞊䝤䛻୍⮴䛧䚸ྠᵝ䛻 ᗘ䝇 䜿䞊䝸䞁䜾๎䛜ᡂ❧䛩䜛䛣䛸䜢☜ㄆ䛧䛯㼇㻲㼕㼓㻚㻟㼉䚹㻌 W_MOD MgO-YBCO 5filaments 1.5um3L35-77K90deg 8 10 7 3 Ac Loss [J/m cycle] 㻝䠊䛿䛨䜑䛻㻌 ㉸㟁ᑟ⥺ᮦ䜢㟁ຊᶵჾ䛻ᛂ⏝䛩䜛ሙྜ䚸㉸㟁ᑟᕳ⥺㒊 䛻Ⓨ⏕䛩䜛ὶᦆኻ䛿ᶵჾ䛾⇕㈇Ⲵ䛾㒊ศ䜢༨䜑䜛䛯 䜑ᵝ䚻䛺 ᗘ䛷䛾ᦆኻ䛾ぢ✚䜒䜚䛜㔜せ䛻䛺䜛䚹ᡃ䚻䛿䛣䜜 䜎䛷䚸㼅㻮㻯㻻 䝔䞊䝥⥺ᮦ䛾ὶᦆኻ≉ᛶ䜢ホ౯䛧䚸 ᗘ䝇䜿 䞊䝸䞁䜾๎䛜ᡂ❧䛩䜛䛣䛸䜢☜ㄆ䛧䛶䛔䜛䚹㻌 ᭱㏆࡛ࡣࠊ࣮ࣞࢨ࣮ࢫࢡࣛࣅࣥࢢࡼࡿ⣽⥺ຍᕤ࡛ ᦆኻࢆపῶࡍࡿ᪉ἲࡀᥦࡉࢀ࡚࠸ࡿࠋࡉࡽࠊ㉸㟁ᑟ ᒙࢆ㠀┿✵ࣉࣟࢭࢫ࡛࠶ࡿࢺࣜࣇࣝ࢜ࣟ㓑㓟ሷࢆ⏝࠸ࡓ ᭷ᶵ㓟ሷሬᕸ⇕ศゎἲ㸦㼀㻲㻭㻙㻹㻻㻰䠅䛷ᡂ⭷䛧䚸㻼㻸㻰 ἲ௦ ⾲ࡉࢀࡿẼ┦ࣉࣟࢭࢫᑐࡋ࡚పࢥࢫࢺࡀᮇᚅࡉࢀ࡚ ࠸ࡿࠋ䛥䜙䛻 㻹㼓㻻 䜢୰㛫ᒙ䛻䛩䜛䛣䛸䛷䚸㠀ᖖ䛻㧗䛔〇㐀㏿ ᗘ䠄ᩘ༑ 㼙㻛㼔䠅䛜ᐇ⌧ྍ⬟䛷䛒䜛䛣䛸䛜ሗ࿌䛥䜜䛶䛔䜛䚹㻌 䛭䛣䛷ᮏ◊✲䛷䛿䚸䛣䜜䜙䛾ᢏ⾡䛜ᛂ⏝䛥䜜䛯 㼀㻲㻭㻙㻹㻻㻰 ἲ䛷〇స䛥䜜䛯 㼅㻮㻯㻻 ㉸㟁ᑟ 㻡 ศ䝔䞊䝥⥺ᮦ䛻ᑐ䛧䛶䚸 㠡ᆺ䝢䝑䜽䜰䝑䝥䝁䜲䝹ἲ䛻䜘䜚ὶᦆኻ䜢 ᐃ䞉ホ౯䚸ẚ㍑ 䛧䛯䛾䛷ሗ࿌䛩䜛䚹㻌 10 6 10 5 10 4 10 3 10 35K 45K 64K 2 10 -2 10 -1 0 10 10 Field Amplitude [T] 㻲㼕㼓㻚㻞㻌㼀㼔㼑㻌㻭㻯㻌㼘㼛㼟㼟㻌㼜㼞㼛㼜㼑㼞㼠㼥㻌 㻌 㻞䠊ヨᩱ䛸 ᐃἲ㻌 ヨᩱ䛿୰㛫ᒙ䛻 㻵㻮㻭㻰 䛷ᡂ⭷䛥䜜䛯 㻹㼓㻻 ᇶᯈ䛻 㻹㻻㻰 ἲ 䛻䜘䛳䛶 㼅㻮㻯㻻 ㉸㟁ᑟᒙ䜢ᡂ⭷䛧䛯⥺ᮦ䜢ᇶᯈ䛿䛭䛾䜎䜎䛻 䛧䛶㉸㟁ᑟᒙ䛚䜘䜃୰㛫ᒙ䜢 㻡 ศ䛧䛯䜒䛾䛷䛒䜛䚹㻌 ྛᒙ䛾ᵓᡂ䜢 㻲㼕㼓㻚㻝 䛻♧䛩䚹䛣䛾▷ᑻ⥺ᮦ䜢 㻟 ᯛ✚ᒙ䛧䛶䚸 㠡ᆺ䝢䝑䜽䜰䝑䝥䝁䜲䝹ἲ䛻⏝䛔䛶䚸☢ཬ䜃ὶᦆኻ䜢 ᐃ䛧䛯䚹☢⏺䛿ヨᩱᖜᗈ㠃䛻ᑐ䛧䛶ᆶ┤䛻༳ຍ䛧䚸 ᗘ䛿෭ ᶵ䛾ఏᑟ෭༷䛻䜘䜚 㻟㻡䡚㻢㻠㻷 䛾⠊ᅖ䛷 ᐃ䜢⾜䛳䛯䚹㻌 W_MOD MgO-YBCO 5filaments 1.5um3L35-77K90deg@ 9 10 8 10 7 10 6 10 5 10 4 10 3 Ac Loss / P I 0 c0 2 (T) 10 35K 45K 64K 1 10 10 2 3 10 4 10 Field Amplitude / P I (T) 0 c0 㻲㼕㼓㻚㻟㻌㼀㼔㼑㻌㼚㼛㼞㼙㼍㼘㼕㼦㼑㼐㻌㻭㻯㻌㼘㼛㼟㼟㻌㼜㼞㼛㼜㼑㼞㼠㼥㻌㼎㼥㻌㻵㻯㻜㻔㻜㻘㼀㻕㻌 㻲㼕㼓㻚㻝㻌㻡㻙㼒㼕㼘㼍㼙㼑㼚㼠㼑㼐㻌㻹㻻㻰㻙㼅㻮㻯㻻㻌㼠㼍㼜㼑㼟㻌㼎㼍㼟㼑㼐㻌㼛㼚㻌 㻵㻮㻭㻰㻙㻹㼓㻻㻌 㻟䠊ᐇ㦂⤖ᯝ㻌 ᅇ ᐃ䛧䛯 㻟㻡䡚㻢㻠㻷 䛻䛚䛡䜛ὶᦆኻ䛾⤖ᯝ䜢 㻲㼕㼓㻚㻞 䛻♧䛩䚹㻌 䛣䜜䜎䛷䛻 ᐃ䛧䛶䛝䛯ᵝ䚻䛺✀㢮䛾 㼅㻮㻯㻻䚸㻳㼐㻮㻯㻻 ⥺ ᮦ䛾⮫⏺㟁ὶ≉ᛶ䠄㻵㻯㻙㻮䠅䛿䚸ྛ ᗘ䛻䛚䛡䜛㞽☢ሙ䛾⮫⏺ 㟁ὶ䠄௨ୗ䚸 㻵㻯㻜㻔㻜㻘㼀㻕䠅䛷つ᱁䛩䜛䛣䛸䛻䜘䜚 ᗘ䛻㛵䛧䛶䝇 䜿䞊䝸䞁䜾䛥䜜䚸䜎䛯ὶᦆኻ䜒 ᗘ䛻㛵䛧䛶䝇䜿䞊䝸䞁䜾䛥 䜜䜛䛣䛸䜢☜ㄆ䛧䛶䛔䜛䚹㻌 䛭䛣䛷䚸㻲㼕㼓㻚㻞 䛻♧䛩ὶᦆኻ䛻ᑐ䛧䛶䜒ྠᵝ䛻ᶓ㍈䜢 㻵㻯㻜㻔㻜㻘㼀㻕䚸⦪㍈䜢 㻵㻯㻜㻔㻜㻘㼀㻕䛾 㻞 ್䛷つ᱁䛧䛯䚹䛭䛾⤖ᯝ䚸ྛ 㻠䠊ㅰ㎡㻌 ᮏ◊✲䛿䚸㉸㟁ᑟᛂ⏝ᇶᯈᢏ⾡◊✲㛤Ⓨ䛾୍⎔䛸䛧䛶䚸 㻵㻿㼀㻱㻯 䜢㏻䛨䛶 㻺㻱㻰㻻 䛾ጤク䜢ཷ䛡䛶ᐇ䛧䛶䛔䜛䜒䛾䛷䛒 䜛䚹㻌 ― 126 ― 第83回 2010年度秋季低温工学・超電導学会 1P-p30 交流損失 㻴㼀㻿 䝞䝹䜽䛾ᤕᤊ☢᮰ῶ⾶ᢚไ䛾䛯䜑䛾䝅䞊䝹䝗䝁䜲䝹䛻䛴䛔䛶䛾᳨ウ㻌 㻿㼠㼡㼐㼥㻌㼛㼚㻌㼟㼔㼕㼑㼘㼐㻌㼏㼛㼕㼘㻌㼒㼛㼞㻌㼟㼡㼜㼜㼞㼑㼟㼟㻌㼐㼑㼏㼍㼥㻌㼛㼒㻌㼠㼞㼍㼜㼜㼑㼐㻌㼙㼍㼓㼚㼑㼠㼕㼏㻌㼒㼘㼡㼤㼑㼟㻌㼕㼚㻌㼠㼔㼑㻌㻴㼀㻿㻌㼎㼡㼘㼗㻌 Loss (J/cycle) Loss (J/cycle) 㻌 ᒣᓊ㻌 ୍ே䠈ሯᮏ㻌 ಟᕭ䠄ᶓᅜ䠅䠗ᑠᕝ㻌 ⣧䠄᪂₲Ꮫ䠅䠗ᐑᇛ㻌 ㍜䠄ᒸᒣᏛ䠅㻌 㼅㻭㻹㻭㻳㻵㻿㻴㻵㻌㻷㼍㼦㼡㼔㼕㼠㼛䠈㻌 㼀㻿㼁㻷㻭㻹㻻㼀㻻㻌㻻㼟㼍㼙㼕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㻧㻌㻻㻳㻭㼃㻭㻌㻶㼡㼚㻌㻔㻺㼕㼕㼓㼍㼠㼍㻌㼁㼚㼕㼢㼑㼞㼟㼕㼠㼥㻕㻧㻌 㻌 㻹㻵㼅㻭㻳㻵㻌㻰㼍㼕㼟㼡㼗㼑㻌㻔㻻㼗㼍㼥㼍㼙㼍㻌㼁㼚㼕㼢㼑㼞㼟㼕㼠㼥㻕㻌 㻱㻙㼙㼍㼕㼘㻦㻌㼥㼍㼙㼍㼓㼕㼟㼕㻬㼛㼥㼍㼙㼍㼘㼍㼎㻚㼐㼚㼖㻚㼥㼚㼡㻚㼍㼏㻚㼖㼜㻌 㻌 㻝䠊䛿䛨䜑䛻㻌 HTS Bulk Z ᡃ䚻䛿䠈䝞䝹䜽㉸ఏᑟయ䜢⏝䛔䛯ὶ㧗 ㉸ఏᑟᶵჾ䛾 1~n layer ᐇ⏝䛾䛯䜑䛻䠈䝞䝹䜽䛜䛥䜙䛥䜜䜛ᵝ䚻䛺ኚື☢⏺䛻䜘䜛 5.0mm 10.0mm ᤕᤊ☢᮰䜈䛾ᙳ㡪䛻䛴䛔䛶ㄪᰝ◊✲䜢⾜䛳䛶䛝䛯䠊㻌 5.0mm ᮏሗ࿌䛷䛿䠈ᤕᤊ☢᮰ῶᑡ䛾ᢚไ䛻ຠᯝⓗ䛷䛒䜛䛣䛸䛜 15.0mm ☜ㄆ䛷䛝䛶䛔䜛㧗 ㉸ఏᑟ䠄㻴㼀㻿䠅䝅䞊䝹䝗䝁䜲䝹䛾ຍ䛻䛴 HTS shield coil 䛔䛶䠈☢⏺ゎᯒ䛚䜘䜃ᤕᤊ☢᮰ῶᑡ䛾ཎᅉ䛸ᛮ䜟䜜䜛ὶ Fig. 1 Arrangement of bulk and shield ring. ᦆኻ䛾ゎᯒ䛻䜘䜚䝅䞊䝹䝗䝁䜲䝹ຍ䛻䛴䛔䛶䛾᳨ウ䜢⾜䛳 Ar.3 No Ring Ar.1 䛯䛾䛷ሗ࿌䛩䜛䠊㻌 Ar.2 Z Z Z Z HTS bulk 㻌 㻞䠊᪉ἲ䛸⤖ᯝ㻌 ᅗ 1 䛻♧䛩䜘䛖䛺 HTS 䝞䝹䜽䛾ഃ㠃䛻 HTS ⥺ᮦ䛷సᡂ䛧 HTS ring 䛯䝁䜲䝹䜢ຍ䛩䜛䛣䛸䛻䜘䜚╔☢䛥䜜䛯䝞䝹䜽䛜እ㒊ὶ☢ Fig. 2 Arrangements of HTS coils. ⏺䛻䛥䜙䛥䜜䛯䛾ᤕᤊ☢᮰ῶ⾶䛾ᵝᏊ䜢ᐇ㦂䛻䜘䜚᳨ド䛧 䛶䛝䛯[1],[2]䠊䛣䛣䛷䛿䠈ຍ䛧䛯 HTS 䝅䞊䝹䝗䝁䜲䝹䛾ᒙᩘ 10-1 䜢ቑ䜔䛧䛶䛔䛟䛻ᚑ䛳䛶ᤕᤊ☢᮰䛾ῶ⾶䛿ᢚไ䛥䜜䛶䛔䛟䛣 䛸䛛䜙䠈䝅䞊䝹䝗䝁䜲䝹䛾ຍ䛻䜘䜚䝞䝹䜽䛾ὶᦆኻ䛜䛹䛾 -2 䜘䛖䛻ኚ䛩䜛䛛䛾᳨ウ䜢ᩘ್ゎᯒ䛻䜘䜚⾜䛳䛯䠊 10 ᅗ 2 䛻ゎᯒ䜢⾜䛳䛯䝰䝕䝹䜢♧䛩䠊HTS ⥺ᮦ䛾ᙧ≧䜢⪃ ៖䛧䛯䠈䛔䛟䛴䛛䛾䝁䜲䝹䛾ຍ㓄⨨䜢⪃䛘䠈No ring: ຍ䛧 No ring -3 10 Ar.1 䛺䛔䜒䛾䜢ᇶ‽䛸䛧䠈Ar.1: 䝞䝹䜽ഃ㠃య䛻ຍ䠈Ar.2: 䝞 Ar.2 䝹䜽ഃ㠃䛾୰ᚰ㒊䛾䜏ຍ䠈䛭䛧䛶䠈Ar.3: ☢᮰ධ䛜㞟୰ Ar.3 B =100 mT m -4 10 䛩䜛䛸⪃䛘䜙䜜䜛䝞䝹䜽䛾䜶䝑䝆㒊ศ䛻ຍ䠈䛾 3 䛴䛾㓄⨨䛻 0 2 4 6 8 10 䛴䛔䛶ὶᦆኻ䛾᳨ウ䜢⾜䛳䛯䠊ᅗ 3䠈4 䛻䝅䞊䝹䝗䝁䜲䝹 Number of the layers ຍᒙᩘ䛻䜘䜛䠈ὶᦆኻ䛾⤖ᯝ䜢♧䛩䠊ᅗ 3 䛿䝞䝹䜽䛾䜏䛾 Fig. 3 AC losses in the bulk with and without shielding coil wound of ᦆኻ䛷䛒䜚䠈ᅗ 4 䛿䝞䝹䜽䛸䝅䞊䝹䝗䝁䜲䝹䜢ྵ䜑䛯ᦆኻ䛾⤖ HTS wire subjected to AC external magnetic field. ᯝ䛷䛒䜛䠊 ゎᯒ⤖ᯝ䜘䜚䝅䞊䝹䝗䝁䜲䝹䛾ຍ䛿䠈䝞䝹䜽䛾ὶᦆኻ 10-1 No ring 䜢ῶᑡ䛥䛫䜛䛯䜑䛻ຠᯝⓗ䛷䛒䜛䛣䛸䛜䜟䛛䜛䛜䠈䝅䞊䝹䝗䝁 B =100 mT m Ar.1 䜲䝹⮬㌟䛾ᦆኻ䜒䝞䝹䜽䛾ᦆኻ䛾㔞䛸䜋䜌ྠ䛨䛸䛺䜚䠈య䛸 Ar.2 Ar.3 䛧䛶䛾ᦆኻ䛿䛒䜎䜚ኚ䜟䜙䛺䛔䠊䜎䛯䠈䝅䞊䝹䝗䝁䜲䝹㓄⨨䛿 䝅䞊䝹䝗ᛶ⬟䛸య䛾ὶᦆኻῶᑡ䛾୧᪉䛾ほⅬ䛛䜙㠃 䛻ຍ䛩䜛 Ar.1 䛾㓄⨨䛜ຠᯝⓗ䛷䛒䜛䛣䛸䜢♧䛩䛣䛸䛜䛷䛝 䛯䠊 㻌 -2 㻲㼕㼓㻚㻝㻌㻸㼛㼓㼛㻌㼛㼒㻌㻯㼞㼥㼛㼓㼑㼚㼕㼏㻌㻭㼟㼟㼛㼏㼕㼍㼠㼕㼛㼚㻌㼛㼒㻌㻶㼍㼜㼍㼚㻌㻔㻥㻌㼜㼛㼕㼚㼠㻕㻌 10 㻟䠊䜎䛸䜑㻌 0 2 4 6 8 10 Number of the layers HTS 䝅䞊䝹䝗䝁䜲䝹䛾ຍ䛻䛚䛔䛶䠈HTS 䝞䝹䜽䛾ὶ ᦆኻ䜢♧䛩䛣䛸䛜䛷䛝䠈䝅䞊䝹䝗䝁䜲䝹䛾ᤕᤊ☢᮰ῶ⾶ᢚไ Fig. 4 Total losses and shielding coil are plotted against number of layers of the shielding ring. 䛾䛯䜑䛾᳨ウ䜢⾜䛖䛣䛸䛜䛷䛝䛯䠊 Table 1 Specification of HTS Bulk and HTS wire used in shielding ring Bulk Diameter Height Trapped Field Jc n value Wire Thickness Tape Wire Width Ic Jc Je GdBaCuO 30mm 10.0mm 1.22T (at 77K) Field Cool 7.37×107 A/m2 (Estimated from experiment of trapped magnetic field of bulk.) 20 GdBa2Cu3Ox/ Hastelloy substrates 220Pm (with 100Pm thick Cu layer) 5.0mm 155A 1.35×1010 A/m2 1.41×108 A/m2 䜎䛯䠈䝅䞊䝹䝗ᛶ⬟䛸ὶᦆኻపῶ䛾ぢᆅ䛛䜙䠈䝅䞊䝹䝗 䝁䜲䝹䛾㓄⨨䜢᳨ウ䛩䜛䛣䛸䛜䛷䛝䛯䠊 㻌 ㅰ㎡㻌 ᮏ◊✲䛿䠈⛉◊㈝䞉ᇶ┙◊✲㻯䠄㻞㻝㻡㻢㻜㻞㻥㻞䠅䛾ຓᡂ䜢ཷ䛡 䛶ᐇ䛧䛯䜒䛾䛷䛒䜛䠊㻌 㻌 ཧ⪃ᩥ⊩㻌 1. O. Tsukamoto, et al.: Journal of Materials Processing Technology, 161, 1-2, (2005) pp52-57 2. K. Yamagishi, et al.: IEEE Trans. on Appl. Supercond., Vol.19, No.3, (2009) pp.3561-3564 ― 127 ― 第83回 2010年度秋季低温工学・超電導学会 1P-p31 Ｙ系線材 (1) TFA-MOD YGdBCO Flux pinning properties dependent on magnetic ¿eld angle in TFA-MOD-processed YGdBCO coated conductor with nanoparticles , , , ( ( , ); ); ( ); ( ); KOIDA Takaya, KIUCHI Masaru, OTABE Edmund Soji, MATSUSHITA Teruo(Kyushu Inst. of Tech.); MIURA Masashi (Los Alamos National Laboratory); IZUMI Teruo, SHIOHARA Yuh(ISTEC-SRL); KATO Takeharu(JFCC); E-mail : [email protected] 1. REBCO (RE: U01 2 + U02 2 U0 = ) Jc (1) g2 YGdBCO g2 B c2 g 2 (lj) v g 2 (0)(cos 2 lj + DŽ a ï 2 sin2 lj)ï 1/ 6 [1] g 2. 0.65 μm TFA-MOD BZO (#1) YGdBCO(Y:Gd = 0.77:0.23) (#2) 2 Table 1 Jc l = 0 .8 mm g 2 (0) U0 2 B c g2 (2) g2 Table1: SpeciÀcation of specimens specimen thickness d(μm) Tc (K) process #1 0.65 90.0 MOD #2 0.65 90.2 MOD+BZO w = 50 μm 10 11 77 K # 1 # 2 c Ec = 4 .5 × 10ï 3 V/m ± 0.3 K 1T 3T 10 10 2 Jc[A/m ] 0–3 T Jc lj 3. g 2 v B c2 1/ 3 B c2 DŽa Fig. 1 1T 6.48 #2 #1 2.88 #2 Jc 77 K Jc -lj Jc (90Ő )/Jc(0Ő ) #1 10 9 10 8 #1 #1 Ǐ Ǐ 0 30 60 lj [degree] 90 Fig. 1: Jc -lj properties at 77 K for specimens #1 and #2. #2 #1 4. [1] Jc01 Jc02 U01 , U02 : 82 2010 2A-a10(2010) ISTEC NEDO U0 ― 128 ― 第83回 2010年度秋季低温工学・超電導学会 1P-p32 Ｙ系線材 (1) ᪉ྥศᩓ䛧䛯ᰕ≧Ḟ㝗䜢ྵ䜐 㼅㻮㼍㻞㻯㼡㻟㻻㼥 ⷧ⭷䛾㻌 ⮫⏺㟁ὶᐦᗘ䛾☢ሙゅᗘ౫Ꮡᛶ㻌 㻭㼚㼓㼡㼘㼍㼞㻌㼐㼑㼜㼑㼚㼐㼑㼚㼏㼑㼟㻌㼛㼒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㼕㼚㻌㼅㻮㼍㻞㻯㼡㻟㻻㼥㻌㼠㼔㼕㼚㻌㼒㼕㼘㼙㼟㻌 㼣㼕㼠㼔㻌㼟㼜㼘㼍㼥㼑㼐㻌㼏㼛㼘㼡㼙㼚㼍㼞㻌㼐㼑㼒㼑㼏㼠㼟㻌㻌 㻌 n -value 9 2 Jc [ 10 A/m ] n -value Jc / Jc0 ᮎྜྷ㻌ဴ㑻䠈すᮧ㻌ኴᏹ䠈⡿㻌ᚿ䠈⸨ྜྷ㻌Ꮥ๎䠈ගᮌ㻌ᩥ⛅䠈ụୖ㻌▱㢷㻌㻔⇃ᮏ㻕㻌 SUEYOSHI Tetsuro䠈NISHIMURA Takahiro, YONEKURA Kenji, FUJIYOSHI Takanori, MITSUGI Fumiaki, IKEGAMI Tomoaki (Kumamoto Univ.) E-mail: [email protected] 㻌 ࣮ࣟࢻ࡞ࣆ࣮ࢡࡀぢࡽࢀࡿࡀ㸪db45 ࡛ࡣ↷ᑕ᪉ྥྠࡌ 㻝䠊䛿䛨䜑䛻㻌 r45q㏆࡛ 2 ࡘࡢࣆ࣮ࢡࡀ⏕ࡌ࡚࠸ࡿ㸬db45 ࡢT =0q࠾ ᕼᅵ㢮⣔㧗 ㉸ఏᑟయ࠾࠸࡚㸪ࢼࣀࣟࢵࢻࡢࡼ࠺࡞ 1 ࠸࡚ࡣ㸪☢᮰⥺ᑐࡋ࡚ᰕ≧Ḟ㝗ࡀr45q࡛ഴ࠸࡚࠸ࡿࡇ ḟඖࣆࣥࡣ☢ሙ᪉ྥࡀ୍⮴ࡋࡓࡁ᭱ࡶ᭷ຠ࡞ࣆࣥṆ ࡛㸪☢᮰⥺ࡀ㝵ẁ≧ኚᙧࡋࢫࣛࢻ⛣ືࡋࡸࡍ࠸ࡓࡵ ࡵⅬ࡞ࡾ㸪㢧ⴭ☢ሙ୰ࡢ⮫⏺㟁ὶᐦᗘ Jc ࢆᨵၿ࡛ࡁ [4]㸪n ್ࡀᑠࡉࡃ࡞ࡿ⪃࠼ࡽࢀࡿ㸬୍᪉ tr45 ࡛ࡣ㸪0q ࡿ[1]㸬ࡉࡽ᪉ྥࡀศᩓࡋࡓ 1 ḟඖࣆࣥࡣ㸪1 ḟඖࣆࣥᅛ r45qࡢ 3 ᪉ྥᰕ≧Ḟ㝗ࡀᏑᅾࡍࡿࡓࡵ㸪௵ពࡢ☢ሙ ᭷⌧ࢀࡿ☢᮰⥺ࡢ㔜ᢡࢀ(double kink)ኚᙧࡶࡋࡃࡣ㝵 ᪉ྥ࠾࠸࡚ࡶ࠸ഴࡁࡢ㏆࠸ᰕ≧Ḟ㝗ࡼࡾࢫࣉࣞ ẁ≧(stair-case)ኚᙧࡽ⏕ࡌࡿ㢧ⴭ࡞⇕άᛶ㐠ືࢆጉࡆ ຠᯝࡀ⏕ࡌ㸪Jc n ್ࡀ㧗ࡃ࡞ࡗ࡚࠸ࡿࡶࡢ⪃࠼ࡽࢀ ࡿ(ࢫࣉࣞຠᯝ)ࡓࡵ᭦࡞ࡿ㧗 Jc [2]㸪ᵝࠎ࡞᪉ྥ ࢆ᭷ࡍࡿࡓࡵ Jc ࡢ␗᪉ᛶࡢᨵၿࡀᮇᚅࡉࢀࡿ[3]㸬 ࡿ㸬 ᮏ◊✲࡛ࡣ㸪1 ḟࣆࣥࡢ᪉ྥࢆᐜ᫆ไᚚ࡛ࡁࡿ㔜࢜ 100 (a) T = 77.3K ࣥ↷ᑕࡼࡾ㸪YBCO ⷧ⭷ෆ 2 ࡲࡓࡣ 3 ᪉ྥ࡛ᰕ≧Ḟ㝗 -1 B || c 10 ࢆᕪࡋ࡚ᑟධࡋ㸪Jc ࡸ n ್ᑐࡍࡿᰕ≧Ḟ㝗ࡢᕪࡢᙳ 㡪ࡘ࠸࡚ㄪࡓ㸬 db10 10-2 db45 㻞䠊ᐇ㦂᪉ἲ㻌 tr45 10-3 PLD ἲࡼࡾ SrTiO3 ᇶᯈୖస〇ࡋࡓ YBCO ⷧ⭷ࢆ㸪 pa06 BI =5T ࣇ࢛ࢺࣜࢯࢢࣛࣇ࣮ࡼࡾᖜ⣙ 40P㹫, 㛗ࡉ 1mmࡢࣈࣜ -4 10 ࢵࢪ≧ຍᕤࡋࡓᚋ㸪↷ᑕࡸ ᐃ⏝࠸ࡓ㸬ᰕ≧Ḟ㝗ࢆ db10 (b) T = 77.3K 20 db45 ᑟධࡍࡿࡓࡵࡢ㔜࢜ࣥ↷ᑕࡣ㸪ཎᏊຊᶵᵓࡢࢱࣥࢹ࣒ B || c tr45 ຍ㏿ჾ࡚ 200MeV ࡢ Xe ࢜ࣥࢆ⏝࠸࡚⾜ࡗࡓ㸬c ㍈ pa06 BI =5T ᑐࡋ࡚r10q㸪r45qࡢ 2 ᪉ྥࡽ↷ᑕࡋࡓヨᩱࢆࡑࢀࡒࢀ 10 db10, db45㸪ࡲࡓ 0qr45qࡢ 3 ᪉ྥࡽ↷ᑕࡋࡓヨᩱࢆ tr45 ࡍࡿ㸬ཧ↷ヨᩱࡋ࡚㸪 c ㍈ᑐࡋ࡚6qࡢゅᗘ࡛ᖹ⾜ 0 ࡞ᰕ≧Ḟ㝗ࢆᑟධࡋࡓヨᩱ pa06 ࢆ⏝ពࡋࡓ㸬↷ᑕ᪉ྥࡣ 0 2 4 6 ヨᩱࡢࣈࣜࢵࢪ᪉ྥᑐࡋ࡚ᖖᆶ┤ࡋ㸪ᰕ≧Ḟ㝗ࡢ B [T] 㠃ᐦᗘࡣ࡚ࡢヨᩱ࡛࣐ࢵࢳࣥࢢ☢ሙ BI=3T ࡞ࡿࡼ࠺ Fig.1 Magnetic field dependences of (a) Jc /Jc0 and (b) ↷ᑕࢆ⾜ࡗࡓ㸬Jc ࡣ㏻㟁ἲࡼࡾ㟁⏺ᇶ‽ Ec=1PV/cm n-value in YBCO films with various crossed ࡛ᐃ⩏ࡋࡓ㸬Jc ࡢ☢ሙゅᗘ౫Ꮡᛶ࡛ࡣ㸪㟁ὶᖖ┤ࡍ columnar defects. ࡿࡼ࠺☢ሙࢆ༳ຍࡋ㸪☢ሙ c ㍈ࡢ࡞ࡍゅᗘT ࡋ࡚ ᐃࢆ⾜ࡗࡓ㸬 db10 B = 1T 4 (a) db45 㻟䠊⤖ᯝ䛚䜘䜃᳨ウ㻌 tr45 Fig.1(a)㸪⮬ᕫ☢ሙࡢ⮫⏺㟁ὶᐦᗘ Jc0 ࡛つ᱁ࡋࡓ Jc pa06 3 ࡢ☢ሙ౫Ꮡᛶࡘ࠸࡚♧ࡍ(T =77.3K㸪B || c)㸬᪉ྥศᩓࡢ 2 ᑡ࡞࠸ db10 ࡣ㸪ᖹ⾜↷ᑕࡢ pa06 ࡰྠᵝ࡞ Jc-B ≉ᛶ ࢆ♧ࡋ࡚࠸ࡿ㸬☢ሙቑຍᑐࡋ࡚㢧ⴭ࡞ Jc ࡢῶᑡࡀ db45 1 ࠾࠸࡚ぢࡽࢀࡿ㸬୍᪉㸪tr45 ࡛ࡣ㸪ప☢ሙ㸪㧗☢ሙࡶ (b) B = 1T db10 14 ᭱ࡶ㧗࠸್ࢆ♧ࡋ࡚࠸ࡿ㸬c ㍈᪉ྥ BI=5T ࡢ↷ᑕ㔞 db45 tr45 ࡚ᖹ⾜↷ᑕࡋࡓヨᩱẚ㍑ࡋ࡚ࡶ(Fig.1(a))㸪B=2.5T ㏆ pa06 12 ࡲ࡛ tr45 ࡀ㧗࠸್ࢆ♧ࡋ࡚࠸ࡿ㸬 10 Fig.1(b)㸪n ್ࡢ☢ሙ౫Ꮡᛶࡘ࠸࡚♧ࡍ㸬2 ᪉ྥ ᕪࡋࡓヨᩱ pa06 ࢆẚ㍑ࡍࡿ㸪ప☢ሙ࡛ࡣ db10 ࠾ࡅ 8 ࡿ n ್ࡀ㧗࠸್ࢆ♧ࡋ࡚࠸ࡿ㸬ࡇࢀࡣ 1 ḟඖࣆࣥࡢ᪉ྥࡀ -50 0 50 100 ࢃࡎศᩓࡋࡓࡁ⏕ࡌࡿࢫࣉࣞຠᯝࡼࡿࡶࡢ T [deg.] ⪃࠼ࡽࢀࡿ[2]㸬୍᪉㸪tr45 ࠾࠸࡚ࡣ B=2T ௨ୗࡢ☢ሙ Fig.2 Angular dependences of (a) Jc and (b) n-value at ࡛ n ್ࡀ㢧ⴭ㧗࠸㸬ࡇࢀࡣ㸪BI=5T ࡢヨᩱẚ㍑ࡋ࡚ࡶ 77.3 K for B = 1 T. ప☢ሙ࡛㧗࠸ n ್ࢆ♧ࡋ࡚࠸ࡿ㸬 ཧ⪃ᩥ⊩㻌 Fig.2 㸪77.3K, 1T ࠾ࡅࡿ Jc n ್ࡢ☢ሙゅᗘ౫Ꮡᛶ 1. P. Mele, et al.: Supercond. Sci. Technol. 21 (2008) 032002. ࡘ࠸࡚♧ࡍ㸬 T =0q㏆ࡢ Jc(T)≉ᛶ࠾࠸࡚㸪pa06 db10 2. T. Hwa, et al.: Phys. Rev. Lett. 71 (1993) 3545. ࡛ࡣ㗦࠸ࣆ࣮ࢡࢆ♧ࡍࡢᑐࡋ㸪db45, tr45 ࡛ࡣࣈ࣮ࣟࢻ 3. B. Maiorov, et al.: Nature Mater. 8 (2009) 398. ࡞ࣆ࣮ࢡࡶࡋࡃࡣࣇࣛࢵࢺ࡞ Jc(T)≉ᛶ࡞ࡗ࡚࠸ࡿ㸬n(T) 4. Th. Schuster et al.: Phys. Rev. B 50 (1994) 9499. ≉ᛶ࡛ࡣ㸪tr45 ࠾࠸࡚ Jc(T)≉ᛶྠᵝT =0q㏆ࣈ ― 129 ― 第83回 2010年度秋季低温工学・超電導学会 1P-p33 Ｙ系線材 (1) PLD GdBCO 2 Jc [A/m ] Influence of superconducting layer thickness on critical current properties in PLD processed GdBCO coated conductors 10 11 10 10 10 9 #1.6 10 8 0 #2.1 20K 40K 60K 77K 2 4 6 B [T] ― 130 ― 第83回 2010年度秋季低温工学・超電導学会 1P-p34 Ｙ系線材 (1) 㻯㼂㻰 ἲ䛻䜘䜛 㼅㻳㼐㻮㻯㻻 䝁䞊䝖⥺ᮦ䛾⮫⏺㟁ὶ≉ᛶホ౯㻌 Evaluation of critical current property in CVD processed YGdBCO coated conductors 㧗ᶫ ♸㸪ᮌෆ 㸪ᑠ⏣㒊 Ⲯྖ㸪ᯇୗ ↷⏨䠄ᕤ䠅䠗㻌 ᘧ⏫ ᾈ㸪Ώ㒊 ᬛ๎㸪㮵ᓥ ┤㸪㛗ᒇ 㔜ኵ䠄୰㒊㟁ຊ䠅䠗 TAKAHASHI Yuji, KIUCHI Masaru, OTABE Soji, MATSUSHITA Teruo 㻔Kyushu Inst. of Tech㻕㻧㻌SHIKIMACHI Koji, WATANABE Tomonori, KASHIMA Naoji, NAGAYA Shigeo 㻔Chubu Electric Power㻕㻧 E-mail: [email protected] Table 1 Specification of specimens. specimen #1 #2 #3 #4 #5 d (ȝm) 0.45 0.75 1.05 1.35 1.65 Tc(K) 90.8 90.5 90.2 91.1 90.3 ࡽࠊ☢᮰ࢡ࣮ࣜࣉࡢᙳ㡪ࡀࡁࡃ࡞ࡿ㧗 ࣭㧗☢⏺㡿ᇦ ࡢᛂ⏝࡛ࡣ㉸㟁ᑟᒙࡢཌ࠸ヨᩱࡀ᭷࡛࠶ࡿ࠸࠼ࡿࠋ ࡇࢀࡽࡢ⤖ᯝࡘ࠸࡚ࠊ☢᮰ࢡ࣮ࣜࣉ࣭ࣇ࣮ࣟࣔࢹࣝࢆ ⏝࠸ࡓゎᯒࠊཬࡧヲ⣽࡞㆟ㄽࡣᙜ᪥⾜࠺ࠋ 10 12 present specimen d [Pm] 0.45 1.05 1.65 2 Jc [A/m ] 10 10 60 K previous specimen d [Pm] 0.55 0.99 1.43 10 8 0 2 B [T] 4 6 Fig. 1: Magnetic field dependence of magnetization critical current density at 20 and 60 K. The dotted lines show the results of previous CVD-processed YGdBCO tapes3). 0.08 0.06 㻟䠊⤖ᯝཬ䜃᳨ウ㻌 Fig. 1 20 60 K ࠾ࡅࡿ Jc̺B ≉ᛶࢆ♧ࡍࠋࣉࣟࢵ ࢺࡣᅇ ᐃࡋࡓ⤖ᯝ࡛࠶ࡾࠊ◚⥺ࡣ๓ᅇሗ࿌ࡋࡓ⤖ᯝ ࡛࠶ࡿ[3]ࠋ20 K ࠾ࡅࡿ Jc ࡣࠊ๓ᅇ ᐃࡋࡓヨᩱᅇ ᐃࡋࡓヨᩱඹ㉸㟁ᑟᒙཌ౫Ꮡࡏࡎࠊࡰྠ⛬ᗘࡢ ್ࢆ♧ࡋ࡚࠸ࡿࠋ୍᪉࡛ࠊ60K ࠾ࡅࡿ๓ᅇࡢ⤖ᯝ࡛ࡣࠊ ㉸㟁ᑟᒙࡀⷧ࠸ヨᩱࡢ Jc ࡣ☢⏺ࡢቑຍඹࡁࡃῶᑡ ࡋ࡚࠸ࡓࡀࠊᅇࡢ⤖ᯝ࡛ࡣࡑࡢᵝ࡞ࡁ࡞ Jc ࡢຎࡣ ࡞ࡗࡓࠋࡋࡓࡀࡗ࡚㉸㟁ᑟయࡢཌࡉࡼࡿࠊ⮫⏺㟁ὶ ᐦᗘࡢࡤࡽࡘࡁࡀࡁࡃᨵၿࡉࢀ࡚࠸ࡿࡇࡀࢃࡿࠋ Fig. 2 20 K ࠾ࡅࡿࠊU0*̺B ࡢᐇ㦂⤖ᯝࢆ♧ࡍࠋFig.1 ྠᵝࠊࣉࣟࢵࢺࡣᅇ ᐃࡋࡓヨᩱࡢ⤖ᯝ࡛࠶ࡾࠊ◚ ⥺ࡣ๓ᅇ ᐃࡋࡓヨᩱࢆ♧ࡋ࡚࠸ࡿࠋ๓ᅇ ᐃࡋࡓヨᩱ ࡛ࡣࠊ㉸㟁ᑟᒙࡀⷧ࠸ヨᩱࡢ U0*ࡀ㧗☢⏺࡛ࡁࡃῶᑡࡋ ࡚࠸ࡓࠋᅇ ᐃࡋࡓヨᩱ࡛ࡣࠊ㉸㟁ᑟᒙཌࡼࡽࡎࠊ ࡁ࡞ U0*ࢆ♧ࡋ࡚࠸ࡿࡇࡀࢃࡿࠋࡲࡓࠊ㉸㟁ᑟᒙࡢ ཌ࠸ヨᩱࠊࡁ࡞ U0*ࢆ♧ࡍഴྥ࠶ࡿࠋࡇࡢ⤖ᯝ #1 #3 #5 20 K U 0* [eV] 㻝䠊䛿䛨䜑䛻㻌 YBCO ࢥ࣮ࢺ⥺ᮦࡣ㧗☢⏺୰࡛ඃࢀࡓ⮫⏺㟁ὶᐦᗘ(Jc) ࢆ᭷ࡍࡿࡽࠊSMES ࡞ᵝࠎ࡞ᛂ⏝ࡀᮇᚅࡉࢀ࡚࠸ࡿࠋ ඃࢀࡓ≉ᛶࢆ♧ࡍ⥺ᮦࡢస〇ἲࡋ࡚ PLD ἲࡀ࠶ࡿࡀࠊ ᐇ⏝ࡢほⅬࡽࡢస〇ἲࡀヨࡳࡽࢀ࡚࠸ࡿࠋࡑࡢ୰ ࡛ࡶ CVD ἲࡣ〇㐀ࢥࢫࢺࡀᏳ౯࡛࠶ࡾࠊ᭱㏆ࡢ≉ᛶྥୖ ࡽ᭷ᮃどࡉࢀ࡚࠸ࡿࠋ୍᪉࡛ࠊY ࡢ୍㒊ࢆ Gd ࡛⨨ࡍ ࡿࡇ࡛⮫⏺ ᗘ㸦Tc㸧ࡀ㧗ࡃ࡞ࡿࡇࡽࠊYBCO ࢥ࣮ ࢺ⥺ᮦࡼࡾࡶ㧗࠸ Jc ࡀᮇᚅࡉࢀࠊ㛤Ⓨࡀ㐍ࡵࡽࢀ࡚࠸ࡿ [1]ࠋ௨๓ࡢ◊✲ࡽࠊIBAD/CVD ἲ࡛స〇ࡉࢀࡓ YBCO ࢥ࣮ࢺ⥺ᮦࡣࠊཌ⭷ࡼࡿ㉸㟁ᑟᒙࡢຎ࡛ Jc ࡀῶᑡ ࡍࡿࡀࠊ㏫㉸㟁ᑟᒙࡀཌ࠸ヨᩱ☢᮰ࢡ࣮ࣜࣉࡢᙳ 㡪ࢆཷࡅࡃࡃࠊ㧗 ࣭㧗☢⏺࠾ࡅࡿᛂ⏝࡛᭷࡞ࡇ ࡀ♧၀ࡉࢀ࡚࠸ࡿ[2]ࠋ๓ሗ࡛ࡣ IBAD/CVD ἲ࡛స〇ࡉ ࢀࡓ YGdBCO ࢥ࣮ࢺ⥺ᮦ࠾࠸࡚ࠊ㉸㟁ᑟᒙཌࡀቑຍࡍ ࡿࡇࡼࡿ Jc ຎࡢᑠࡉ࡞ヨᩱࡢస〇ࡀྍ⬟࡞ࡗࡓ ࡇࢆሗ࿌ࡋ࡚ࡁࡓ[3]ࠋ ᮏ◊✲࡛ࡣࠊ᪂ࡓస〇ࡋࡓࡉࡽ㉸㟁ᑟᒙࡢཌ࠸ CVD ἲࡼࡿ YGdBCO ࢥ࣮ࢺ⥺ᮦࢆ⏝࠸ࠊ㉸㟁ᑟᒙཌࡀ ⮫⏺㟁ὶ≉ᛶ࠼ࡿᙳ㡪ࡘ࠸࡚ホ౯ࡍࡿࠋ 㻞䠊ᐇ㦂㻌 ヨᩱࡣ CVD ἲࡼࡾస〇ࡉࢀࡓ㉸㟁ᑟᒙཌࡀ 0.45̺ 1.65 ȝm ࡢ YGdBCO ⥺ᮦ࡛ࠊ㛗ᑻ⥺ᮦࡽษࡾฟࡋࡓࡶ ࡢ࡛࠶ࡿࠋヨᩱࡢ㉸㟁ᑟᒙࡢཌࡉ (d)ཬࡧ Tc ࢆ Table 1 ♧ࡍࠋ ᐃࡣ SQUID ☢ຊィࢆ⏝࠸ࡓ┤ὶ☢ ᐃࡽ Jc ̺B ≉ᛶࢆࠊ☢⦆⋡ ᐃࡽ E̺J ≉ᛶࠊぢࡅࡢࣆ ࣭࣏ࣥࢸࣥࢩࣕࣝ U0*ࢆồࡵࡓࠋ 0.04 20 K exp. present specimen d [Pm] previous specimen d [Pm] #1 0.45 0.55 #3 1.05 0.99 #5 1.65 1.43 2 4 6 B [T] Fig. 2: Magnetic field dependence of apparent pinning potential at 20 K. The dotted lines show the results of previous CVD-processed YGdBCO tapes3). ㅰ㎡ ᮏ◊✲ࡣࠊNEDOࡢጤクᴗࠕࢵࢺ࣒ࣜ࢘⣔㉸㟁 ᑟ㟁ຊᶵჾᢏ⾡㛤Ⓨࠖࡢ୍⎔ࡋ࡚ᐇࡋࡓࡶࡢ࡛࠶ࡿࠋ ཧ⪃ᩥ⊩㻌 1. A. Kaneko et al., Physica C 426̺431(2005)949. 2. K. Himeki, et al., Abstracts of CSJ Conference, Vol.79 (2008) p.9 3. Y. Takahashi, et al., Abstracts of CSJ Conference, Vol.82 (2010) p.75 ― 131 ― 第83回 2010年度秋季低温工学・超電導学会 1P-p35 Ｙ系線材 (1) 㻢㻜㻜㻭㻛㼏㼙㻙㼣 ⣭ཌ⭷ 㻳㼐㻮㻯㻻㻛㻵㻮㻭㻰 䝁䞊䝖⥺ᮦ䛾ప 䞉ᙉ☢ሙ୰䛾⮫⏺㟁ὶ≉ᛶ㻌 &ULWLFDOFXUUHQWSURSHUW\RI$FPZFODVV*G%&2,%$'FRDWHGFRQGXFWRUV LQORZWHPSHUDWXUHDQGKLJKILHOGXSWR7 㻌 ୖ㻌 ᫀ╬䠈㻲㼡㼓㼑㼞㻌㻾㼑㼚㼑䠈ᮾᕝ㻌 ⏥ᖹ䠈ᮌ㡲㻌 㝯ᬸ㻌 䠄䠅䠗㻌 㻌 /DUEDOHVWLHU'DYLG䠈-DURV]\QVNL-DQ䠈%UDFFLQL9DOHUL䠈;X$L[LD 䠄⡿ᅜ 䝣䝻䝸䝎ᕞ❧䠅䠗㻌 㣤ᓥ㻌 ᗣ⿱䠈ᩪ⸨㻌 㝯㻌 䠄䝣䝆䜽䝷䠅䠗㻌 ῐ㊰㻌 ᬛ䠈Ώ㎶㻌 㞝㻌 䠄ᮾ䠅䠗㻌 Ἠ㻌 ㍤㑻㻌 䠄㻵㻿㼀㻱㻯㻙㻿㻾㻸䠅䠗㻌 㻌 㻌 ,128(0DVD\RVKL)8*(55HQH+,*$6+,.$:$.RKHL.,667DNDQREX.\XVKX8QLY /$5%$/(67,(5'DYLG䠈-$526=<16.,-DQ䠈%5$&&,1,9DOHUL䠈;8$L[LD)ORULGD6WDWH8QLY86$ ,,-,0$<DVXKLUR6$,72+7DNDVKL)XMLNXUD/WG$:$-,6DWRVKL:$7$1$%(.D]XR7RKRNX8QLY,=80,7HUXR,67(&65/ (PDLOLQRXH#HHVN\XVKXXDFMS 㻌 㻟䠊ᐇ㦂⤖ᯝཬ䜃⪃ᐹ㻌 )LJ 䛻䚸$FPZ ⣭ *G%&2 ⥺ᮦ䛾 ,F%7 ≉ᛶ䜢♧䛩䚹 ☢ሙ䛾༳ຍ᪉ྥ䛿䚸⭷㠃䛻ᑐ䛧䛶ᆶ┤䛷䛒䜛䚹ᅗ୰䛾䝅䞁䝪 䝹䛷♧䛧䛯ᐇ㦂⤖ᯝ䜢ぢ䛶䜏䜛䛸䚸. ௨ୗ䛾ప 㡿ᇦ䛷䛿䚸 7 ⛬ᗘ䛾ᙉ☢ሙ୰䛻䛚䛔䛶䜒㧗 ,F ≉ᛶ䜢⥔ᣢ䛧䛶䛚䜚䚸 䛘䜀 .䚸7 䛷䛿 $FPZ 䛾 ,F ್䛜䚸.䚸7 䛷䛿 $FPZ 䛾 ,F ್䛜ᚓ䜙䜜䛶䛔䜛䚹)LJ 䛻 .䚸. 䛻䛚䛡 䜛 ,F 䛾ゅᗘ౫Ꮡᛶ䜢♧䛩䚹ྠ⥺ᮦ䛻䛿⣧≀➼䛾ேᕤⓗ䛺 䝢䞁䝙䞁䜾䝉䞁䝍䞊䜢ᑟධ䛧䛶䛔䛺䛔䛯䜑䚸,F 䛾ゅᗘ౫Ꮡᛶ䛻 䛚䛡䜛㢧ⴭ䛺 F ㍈᪉ྥ䛾䝢䞊䜽≉ᛶ䛿ᚓ䜙䜜䛶䛚䜙䛪䚸ᆶ┤ ☢ሙ㏆䛷ᗈ䛔ゅᗘ⠊ᅖ䛻ர䛳䛶ᖹᆠ䛺≉ᛶ䜢♧䛧䛶䛔䜛䚹 .䚸. 䛷䛾᭱ᑠ ,F 䛿䚸$FPZ 䛷䛒䛳䛯䚹ᖹ⾜☢ሙ㏆㎶ 䛷䛿䚸q䛷 $FPZ 䜢㉸䛘䜛 ,F ್䜢☜ㄆ䛧䛶䛔䜛䚹 ᐇ㦂䛻䜘䜚ᚓ䜙䜜䛯 (- ≉ᛶ䛛䜙 -F 䛾⤫ィศᕸ䝟䝷䝯䞊䝍䜢 ᢳฟ䛧䛯ᚋ䚸ᕧどⓗ䝢䞁ຊᐦᗘ䛾䝇䜿䞊䝹๎䚸䜾䝷䝇䠉ᾮయ ㌿☢ሙ䛾 ᗘ౫Ꮡᛶ➼䛾ゎᯒ䜢⾜䛔䚸㟁ὶ㍺㏦≉ᛶ䛾ゎ ᯒゎ䜢ồ䜑䛯䚹䛭䛾⤖ᯝᚓ䜙䜜䛯 ,F%7 ≉ᛶ䜢 )LJ ୰䛻ᐇ ⥺䛷♧䛩䚹ᅇ䚸7 ௨ୗ䛾☢ሙ୰䛷ୟ䛴 . ௨ୖ䛾 ᗘ 㡿ᇦ䛻䛚䛡䜛 (- ≉ᛶ䜢⏝䛔䛶ྛ䝢䞁䝙䞁䜾䝟䝷䝯䞊䝍䜢ồ䜑䚸 ᙉ☢ሙ୰䛾≉ᛶ᥎ᐃ䜢⾜䛳䛯䚹ゎᯒ䛻⏝䛔䛯 ᗘ䚸☢ሙ㡿 ᇦ䛻䛚䛔䛶䛿ᐇ㦂್䛸ゎᯒゎ䛸䛜Ⰻ䛟୍⮴䛧䛶䛔䜛䜒䛾䛾䚸 F , >$FPZ@ H[SHULPHQWDO DQDO\WLFDO SUHGLFWHG . . . . . PDJQHWLFILHOG%>7@ )LJ,F%7FKDUDFWHULVWLFVLQ$FPZFODVV*G%&2FRDWHG FRQGXFWRUVDW%F .7 F 㻞䠊ᐇ㦂㻌 ᐇ㦂䛻⏝䛔䛯⥺ᮦ䛿䚸䜲䜸䞁䝡䞊䝮䞉䜰䝅䝇䝖╔䠄,%$'䠅 ἲ䛻䛶స〇䛥䜜䛯㓄ྥᇶᯈୖ䛻䚸ཌ䛥 PP 䛾 *G%&2 ㉸ఏ ᑟᒙ䜢ᙧᡂ䛧䛯䝔䞊䝥⥺ᮦ䛷䚸.䚸⮬ᕫ☢ሙ䛷 $FPZ 䛾 ,F ್䜢᭷䛧䛶䛔䜛䚹ᙉ☢ሙ୰䛷䛾 (- ᐃ䜢ᐇ䛩䜛䛯䜑䚸 ྠ⥺ᮦ䛻⣽⥺ຍᕤ䜢䛧䛯䜒䛾䜢ᐇ㦂⏝䛾ヨᩱ䛸䛧䛯䚹ᾮ య䝦䝸䜴䝮୰䛾ᐇ㦂䛿䚸5HVLVWLYH0DJQHW䠄⡿ᅜ䝣䝻䝸䝎ᕞ❧ Ꮫ ᅜ❧ᙉ☢ሙ◊✲ᡤ䠅䜢⏝䛔䛶䚸. ௨ୖ䛾 ᗘ㡿ᇦ䛿䚸 䜺䝇㞺ᅖẼไᚚ䛻䜘䜛 ᗘㄪᩚᶵᵓ䜢᭷䛩䜛䝝䜲䝤䝸䝑䝗䝬 䜾䝛䝑䝖䝅䝇䝔䝮ཬ䜃㉸ఏᑟ䝬䜾䝛䝑䝖䝅䝇䝔䝮䠄ᮾᏛ䠅䜢 ⏝䛔䛶ᐇ䛧䛯䚹☢ሙ䛾༳ຍゅᗘ䛿ᇶᯈ㠃䛻ᑐ䛧䛶ᖹ⾜᪉ ྥ%DE䜢 q䚸ᆶ┤᪉ྥ%F䜢 q䛸ᐃ⩏䛧䛶䛔䜛䚹 ᙉ☢ሙ୰䛾 ,F 䛾ゎᯒ್䛿䜔䜔㐣ᑠホ౯䛸䛺䛳䛯䚹䛣䛾䛣䛸䛿 䝢䞁䝙䞁䜾≉ᛶ䛜ప ഃ䛷ᛴ⃭䛻ୖ᪼䛧䛶䛔䜛䛣䛸䜢♧၀䛧 䛶䛔䜛䚹ᐇ㦂⤖ᯝ䛾ヲ⣽䛺䜙䜃䛻䝢䞁䝙䞁䜾≉ᛶ䛾ヲ⣽䛻䛴 䛔䛶䛿ᙜ᪥ሗ࿌䛩䜛䚹 , >$FPZ@ 㻝䠊䛿䛨䜑䛻㻌 ᡃ䚻䛿๓ᅇ䚸䝟䝹䝇䝺䞊䝄╔䝅䝇䝔䝮䛾ᨵၿ䛻䜘䜚ᚓ䜙 䜜䛯 $FPZ ⣭ *G%&2 ⥺ᮦ䛜䚸䠄䠍䠅ᚑ᮶䛾⥺ᮦ䛻ẚ䜉 䛶ᆒ୍䛺 7F ཬ䜃 ,F ศᕸ䜢᭷䛧䛶䛔䜛䛣䛸䚸䠄䠎䠅ཌ⭷䛻䜘䜚☢ ሙ୰䛻䛶㧗 ,F ≉ᛶ䛜ᚓ䜙䜜䜛䛻⮳䛳䛶䛔䜛䛣䛸䚸䜢ሗ࿌䛧䛯䚹 ᅇ䚸ྠ⥺ᮦ䛾ప 䞉ᙉ☢ሙ୰䛾⮫⏺㟁ὶ≉ᛶ䜢ᐇ㦂䛻䜘䜚 ᫂䜙䛛䛸䛩䜛䛸䛸䜒䛻䚸ᡃ䚻䛜ᥦฟ䛧䛶䛔䜛㟁ὶ㍺㏦≉ᛶ䛾ᐃ ᘧ䝰䝕䝹䜢⏝䛔䛯䚸ᙉ☢ሙ୰䛾≉ᛶ᥎ᐃ䛻䛴䛔䛶᳨ウ䜢 ⾜䛳䛯䛾䛷ሗ࿌䛩䜛䚹 %DE %F ILHOGDQJOH>GHJUHH@ )LJ$QJXODUGHSHQGHQFHRI,FDW.7 ㅰ㎡㻌 ᮏ◊✲䛿䚸䜲䝑䝖䝸䜴䝮⣔㉸㟁ᑟ㟁ຊᶵჾᢏ⾡㛤Ⓨ䛾୍⎔ 䛸䛧䛶,67(&䜢㏻䛨䛶1('2䛛䜙䛾ጤク䜢ཷ䛡䛶ᐇ䛩䜛䛸䛸 䜒䛻䠈᪥ᮏᏛ⾡⯆䛾䛂⤌⧊ⓗ䛺ⱝᡭ◊✲⪅➼ᾏእὴ㐵 䝥䝻䜾䝷䝮䛃䛻䜘䜛ᨭ䜢ᚓ䛶⾜䛳䛯䜒䛾䛷䛒䜛䚹 ― 132 ― 第83回 2010年度秋季低温工学・超電導学会 1P-p36 Ｙ系線材 (1) 㼅㻮㻯㻻 ㉸㟁ᑟ⥺ᮦ䛾㐣㟁ὶ䝟䝹䝇㏻㟁䛻䜘䜛≉ᛶຎ䠖⇕ᛂຊ䛾ᙳ㡪㻌 'HJUDGDWLRQRI<%&27DSHVGXHWR2YHUFXUUHQW3XOVH'ULYH ,QIOXHQFHRIWKHUPDOVWUHVV 㔠ග㻌 㞞ஓ䠈ඣᓥ㻌 ኴ㑻䠈᪂㻌 㐨⏕䠈⋤㻌 ᪫ᮾ䠈▼ᒣ㻌 ᩔኈ䠄᪩䠅䠗㻌 ඵᮌ㻌 ṇྐ䠄ྂἙ㟁ᕤ䠅䠗㻌 ᒣ㻌 ಟ䠈⇃㻌 Ṋ䠄㻵㻿㼀㻱㻯㻙㻿㻾㻸䠅㻌 㻷㻭㻺㻱㻹㻵㼀㻿㼁㻌㻹㼍㼟㼍㼥㼍䠈㻌 㻷㻻㻶㻵㻹㻭㻌㻷㼑㼚㼠㼍㼞㼛䠈㻌 㻭㻾㻭㻵㻌㻹㼕㼏㼔㼕㼛䠈㻌 㼃㻭㻺㻳㻌㼄㼡㼐㼛㼚㼓䠈㻌 㻵㻿㻴㻵㼅㻭㻹㻭㻌㻭㼠㼟㼡㼟㼔㼕㻌㻔㼃㼍㼟㼑㼐㼍㻌㼁㼚㼕㼢㻚㻕㻧㻌 㻌 㼅㻭㻳㻵㻌㻹㼍㼟㼍㼟㼔㼕㻌㻔㻲㼡㼞㼡㼗㼍㼣㼍㻌㻱㼘㼑㼏㼠㼞㼕㼏㻕㻧㻌㻹㻭㻾㼁㼅㻭㻹㻭㻌㻻㼟㼍㼙㼡㻘 㻻㻷㼁㻹㻭㻌㼀㼍㼗㼑㼟㼔㼕㻌㻔㻵㻿㼀㻱㻯㻙㻿㻾㻸㻕㻌 㻱㻙㼙㼍㼕㼘㻦㼍㼠㼟㼡㼟㼔㼕㻌㻬㼣㼍㼟㼑㼐㼍㻚㼖㼜㻌 㻌 㻌 㻝䠊䛿䛨䜑䛻㻌 㼅㻮㻯㻻 ⥺ᮦ䛾㟁ຊᛂ⏝䛻䛚䛔䛶䠈✺Ⓨⓗ䛺▷⤡㟁ὶ䛾ὶ ධ䛾䜘䜚 ᗘ䛜ᛴୖ᪼䛧䠈⥺ᮦ䛜≉ᛶຎ䛩䜛ྍ⬟ᛶ䛜䛒䜛䚹 䛭䛾䛯䜑⥺ᮦ䛾ຎ䜔↝ᦆ䛧䛺䛔㝈⏺䛾 ᗘ䜢タィ䛾ᣦ ᶆ䞉ᇶ‽䛾䠍䛴䛸䛧䛶⪃䛘䜛ᚲせ䛜䛒䜛䚹䛭䛣䛷ᡃ䚻䛿ຎ㛤 ጞ䛾᭱㧗฿㐩 ᗘ䛻ὀ┠䛧䠈㐣㟁ὶ䝟䝹䝇㏻㟁ヨ㦂䜢⾜ 䛳䛶䛝䛯㼇㻝㼉㼇㻞㼉䚹ᅇ䛿䠈≉ᛶຎヨ㦂䛻ຍ䛘䠈㉸㟁ᑟ⥺ᮦ 㻲㼕㼓㻚㻝㻌㻹㼛㼐㼑㼘㻌㼛㼒㻌㼀㼔㼑㼞㼙㼍㼘㻌㻿㼠㼞㼑㼟㼟㻌㻭㼚㼍㼘㼥㼟㼕㼟㻌 䛾ຎせᅉ䛾୍䛴䛸⪃䛘䜙䜜䜛⇕ᛂຊ䛻䛴䛔䛶䠈ゎᯒホ౯䜢 㻌 ᐇ䛧䛯䛾䛷ሗ࿌䛩䜛䚹㻌 㼀㼍㼎㼘㼑㻚㻝㻌㻿㼜㼑㼏㼕㼒㼕㼏㼍㼠㼕㼛㼚㼟㻌㼛㼒㻌㼅㻮㻯㻻㻌㼠㼍㼜㼑㻌 ᮏ◊✲䛿䛂䜲䝑䝖䝸䜴䝮⣔㉸㟁ᑟ㟁ຊᶵჾᢏ⾡㛤Ⓨ䝥䝻䝆䜵 Manufacturing Method IBAD/TFA-MOD 䜽䝖䛃䛾୍㒊䛸䛧䛶 㻺㻱㻰㻻 䛾ጤク䛻䜘䜚ᐇ䛧䛯䜒䛾䛷䛒䜛䚹㻌 70 mm Length 㻌 㻞䠊ᐇ㦂䛸ゎᯒ㻌 ᐇ㦂䛿䠈⥺ᮦ୧➃䛛䜙ఏᑟ෭༷ 㻣㻣㻌 㻷 䛾᮲௳ୗ䛷⾜䛔䠈㐣 㟁ὶ䛾㏻㟁㛫䛿 㻝 ⛊㛫㏻㟁䛸䛧䛯䚹䛭䛾㝿䛻㉸㟁ᑟ≉ᛶ 䛾ຎ㛤ጞ ᗘ䜢 ᐃ䛧䛯䚹㐣㟁ὶ㏻㟁䛾㉸㟁ᑟ⥺ᮦ䛾 ⇕ᛂຊศᕸ䜢ホ౯䛩䜛䛯䜑䛻䠈ḟඖ᭷㝈せ⣲ἲ䜢⏝䛔䛯 ィ⟬ᶵ䝅䝭䝳䝺䞊䝍䜢㛤Ⓨ䛧䛯䚹ゎᯒ䛿䠈㼅㻮㻯㻻 ⥺ᮦ䛾୧➃ 䛜㟁ὶ䝸䞊䝗䛻ᶵᲔⓗ䛻ᅛᐃ䛥䜜䛶䛔䜛䛸䛧䠈┤≧䛷ኚᙧ䛧䛺 䛔䛸௬ᐃ䛧䛶䛔䜛䚹䜎䛯䠈㼅㻮㻯㻻 ⥺ᮦ䛾ᖜ䛜༑ศ䛻ⷧ䛔䛸䛧䛶䠈 ᖹ㠃ᛂຊ≧ែ䜢௬ᐃ䛧䠈௨ୗ䛾ᘧ䠄㻝䠅䜢ᇶ♏᪉⛬ᘧ䛸䛧䛶⏝ 䛔䛯䚹㻌 [ B ]T [ D ][ B ]dV {d } [ B ]T [ D ]{H t }dV 㸦㸧㻌 ³ V 㻌 5.0 mm 25 Pm 15 Pm 1.5 Pm 1.0 Pm 1.2 Pm 100 Pm Width Cu Thickness Ag Thickness YBCO Thickness CeO2 Thickness Gd2Zr2O7 Thickness Hastelloy Thickness 㻌 ³ V ᘧ䠄䠍䠅䛷䛿㼇㻮㼉䛿䜂䛪䜏㻙ኚ䝬䝖䝸䜽䝇䠈㼇㻰㼉䛿ᛂຊ㻙䜂䛪 䜏䝬䝖䝸䜽䝇䠈䡗㼐䡙䛿᥋Ⅼኚ䝧䜽䝖䝹䠈㼧䃔㼠㼩䛿⇕䜂䛪䜏䝧䜽䝖 䝹䜢䛭䜜䛮䜜⾲䛧䛶䛔䜛䚹㻌 㻌 㻌 㻲㼕㼓㻚㻞㻌㻰㼕㼟㼠㼞㼕㼎㼡㼠㼕㼛㼚㻌㼛㼒㻌㻵㼏㻌㼍㼚㼐㻌㼀㼜㼑㼍㼗㻌 㻌㻌 㻝㻚㻡㻱㻗㻜㻤 㻜㻚㻜㻱㻗㻜㻜 㻜㻚㻜㻜 㻙㻡㻚㻜㻱㻗㻜㻣 ཧ⪃ᩥ⊩㻌 㻝㻚㻌 㻭㻚㻌㻵㼟㼔㼕㼥㼍㼙㼍㻘㻌㻴㻚㻌㼁㼑㼐㼍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 㼂㼛㼘㻚㻌㻤㻞㻌㻔㻞㻜㻝㻜㻕㻌㼜㻚㻣㻞㻌 㻞㻚㻌㻭㻚㻌㻵㼟㼔㼕㼥㼍㼙㼍㻘㻌㼄㻚㻌㼃㻭㻺㻳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 㼂㼛㼘㻚㻌㻤㻞㻌㻔㻞㻜㻝㻜㻕㻌㼜㻚㻣㻟㻌 ― 133 ― 㻜㻚㻜㻝 㻜㻚㻜㻞 㼥㻙㼟㼠㼞㼑㼟㼟 㻜㻚㻜㻟 㻜㻚㻜㻠 㻜㻚㻜㻡 㻜㻚㻜㻢 㻙㻝㻚㻜㻱㻗㻜㻤 㻙㻝㻚㻡㻱㻗㻜㻤 [VWUHVV 㻙㻞㻚㻜㻱㻗㻜㻤 㻙㻞㻚㻡㻱㻗㻜㻤 㻙㻟㻚㻜㻱㻗㻜㻤 PosiƟon [m] )LJ'LVWULEXWLRQRI6WUHVV 㻜㻚㻡 㻜㻚㻠 㼤㻙㼟㼠㼞㼍㼕㼚 \VWUDLQ 㼥㻙㼟㼠㼞㼍㼕㼚 㻜㻚㻟 Strain [%] 㻌 \VWUDLQ 㻡㻚㻜㻱㻗㻜㻣 㻌 㻠䠊䜎䛸䜑㻌 ᅇ䛿㐣㟁ὶ㏻㟁ヨ㦂䛾⤖ᯝ䜢⏝䛔䛶 㼅㻮㻯㻻 ⥺ᮦ䛻䛛䛛 䜛⇕ᛂຊ䞉ṍ䜏䛻䛴䛔䛶ḟඖ᭷㝈せ⣲ἲ䛻䜘䜚ゎᯒ䛧䛯䚹 ຎ㛤ጞ䛾 ᗘୖ᪼䛻䜘䜚䠈ᒁᡤⓗ䛺ṍ䜏䛜 㼅㻮㻯㻻 ⥺ᮦ 䛻⏕䛨䛶䠈㼅㻮㻯㻻 ᒙ䛻䝎䝯䞊䝆䛜䛘䜙䜜䠈≉ᛶຎ䛻䛴䛺 䛜䛳䛯ྍ⬟ᛶ䛜䛒䜛䛸⪃䛘䜙䜜䜛䚹㻌 㼤㻙㼟㼠㼞㼑㼟㼟 㻝㻚㻜㻱㻗㻜㻤 Stress [Pa] 㻟䠊ゎᯒ⤖ᯝ㻌 ゎᯒ䛻⏝䛔䛯 㼅㻮㻯㻻 ⥺ᮦ䛾ㅖඖ䜢 㼀㼍㼎㼘㼑㻌 㻝 䛻♧䛩䚹㐣㟁 ὶ㏻㟁ヨ㦂⤖ᯝ䜢 㻲㼕㼓㻚㻞 䛻♧䛩䚹ᶓ㍈䛿㟁ᅽ➃Ꮚ䛾⨨䜢 ⾲䛧䠈➨䠍⦪㍈䛸Წ䜾䝷䝣䛜 㻵㼏 䜢⾲䛧䠈䠎⦪㍈䛸ᢡ䜜⥺䛜 㼀㼙㼍㼤 䜢 ⾲䛧䛶䛔䜛䚹㻞㻜㻢㻌 㻭 ㏻㟁䛻≉ᛶຎ䛜⏕䛨䛯䚹䛭䛾䛸䛝䛾 㼂㻡㻢 䛾᭱㧗฿㐩 ᗘ䛿⣙ 㻡㻣㻜㻌㻷 䛷䛒䛳䛯䚹䛣䛾 ᗘศᕸ䜢⏝ 䛔䛶ᛂຊศᕸ䛸ṍ䜏ศᕸ䜢ồ䜑䠈䛭䛾⤖ᯝ䜢 㻲㼕㼓㻚㻟䠈㻠 䛻♧䛩䚹 䜾䝷䝣䛿ᶓ㍈䛻⥺ᮦ㛗ᡭ᪉ྥ䠄㼄 ᪉ྥ䠅䜢ྲྀ䜚䠈⦪㍈䛿䛭䜜䛮 䜜ᛂຊ䠈ṍ䜏䜢⾲䛧䛶䛔䜛䚹㻲㼕㼓㻚㻟 䜘䜚䠈㻌 㛗ᡭ᪉ྥᛂຊ䛻䛿ᩘ ⓒ 㻹㻼㼍 䛾ᅽ⦰ᛂຊ䛜Ⓨ⏕䛧䛯䚹䜎䛯 㻲㼕㼓㻚㻠 䜘䜚䠈ຎ⟠ᡤ ㏆䛷᩿㠃᪉ྥ䠄㼅 ᪉ྥ䠅䛻᭱⣙ 㻜㻚㻠䠂䛾ᘬᙇ䜚ṍ䜏䛜Ⓨ⏕䛧 䛯䚹㻌 㻜㻚㻞 [VWUDLQ 㻜㻚㻝 㻜㻚㻜 㻙㻜㻚㻝 㻜㻚㻜㻜 㻜㻚㻜㻝 㻜㻚㻜㻞 㻜㻚㻜㻟 㻜㻚㻜㻠 㻜㻚㻜㻡 㻜㻚㻜㻢 㻙㻜㻚㻞 㻙㻜㻚㻟 㻙㻜㻚㻠 PosiƟon [m] )LJ'LVWULEXWLRQRI6WUDLQ 第83回 2010年度秋季低温工学・超電導学会 1P-p37 Ｙ系線材 (1) 5( ࡢ⥺ᮦࡢ≉ᛶᢕᥱ㸦㸧ྛ✀⎔ቃࢫࢺࣞࢫᑐࡍࡿຎ㝈⏺ࡢ᳨ウ 8QGHUVWDQGLQJRIGHWHULRUDWLRQSKHQRPHQRQIRU5(FRDWHGFRQGXFWRUV 6WXG\RQGHWHULRUDWLRQOLPLWDJDLQVWYDULRXVHQYLURQPHQWDOVWUHVVHV ᆏ┤㐨㸦,67(&65/㸧㸪⋤᪫ᮾ㸪▼ᒣᩔኈ㸦᪩㸧㸪ᯇ୍ஓ㸦ఫ㟁ᕤ㸧㸪ඵᮌ ṇྐ㸦ྂἙ㟁ᕤ㸧㸪㟷ᮌ⿱㸦6:&&㸧ࠊ ᩧ⸨㝯㸦ࣇࢪࢡࣛ㸧ࠊຍ⸨ᬕ㸦-)&&㸧ࠊἨ㍤㑻㸪⏣㎶ᆂ୍㸦,67(&65/㸧 6$.$,1DRPLFKL,67(&65/:$1*;XGRQJ,6+,<$0$$WVXVKL:DVHGD8QLY$2.,<XML6:&&6KRZD+ROGLQJVࠊ 6$,72+ 7DNDVKL )XMLNXUD 220$768 .D]X\D 680,7202 .$72 7DNHKDUX-)&& ,=80, 7HUXR 7$1$%( .HLLFKL ,67(&65/ (PDLOQVDNDL#LVWHFRUMS 㻞䠊ᐇ㦂᪉ἲཬ䜃⤖ᯝ㻌 ࢣ࣮ࣈࣝᛂ⏝ࢆࡋ࡚⪃࠼ࡓ㝿ࠊᶵჾ〇సࡽ㐠 ㌿ 5( ⣔⥺ᮦࡀཷࡅࡿຎࡢྍ⬟ᛶࡢ࠶ࡿࢫࢺࣞ ࢫࡋ࡚ࡣࠊ㐠㌿ࡢ㟁ὶࠊᨾࡢ㐣㟁ὶࠊಖᏲࡢ ⇕ࢧࢡࣝࠊ〇స࣭ಖ⟶ࡢᛂຊ࣭ṍࡳࠊ㐣⇕ࠊ‵ᗘࡀ ᣲࡆࡽࢀࡿࠋࡇࢀࡽࢫࢺࣞࢫࡼࡿຎࢆㄪᰝࡍࡿࡓࡵࠊ ୗグᣲࡆࡓㄪᰝࢆᐇࡋࡓࠋホ౯᮲௳ࡣࠊࢣ࣮ࣈࣝᛂ ⏝ࢆ⪃࠼ࡓ㝿ᐃࡉࢀࡿࢫࢺࣞࢫᙉᗘࢆඖタᐃࡋࡓࠋ ホ౯ࡣࠊ3/'B*G ࠾ࡼࡧ 02'B< ⥺ᮦࢆ୰ᚰ⾜ࡗࡓࠋ ࠕᐇࡋࡓヨ㦂㡯┠ࠖ 㛗ᮇ㐃⥆㐣㏻㟁ヨ㦂 ᨾ㟁ὶࢆᐃࡋࡓ㐣㟁ὶヨ㦂 ⧞㏉ࡋ㐣㟁ὶヨ㦂㸦 ࠾ࡅࡿຎ㝈⏺௨ෆ㸧 ᭤ࡆ>ᘬᙇ@ヨ㦂 ⧞㏉ࡋ᭤ࡆヨ㦂㸦 ࠾ࡅࡿຎ㝈⏺௨ෆ㸧 ᅽ⦰ヨ㦂 㸦03D ࡲ࡛㸧 ⇕ࢧࢡࣝヨ㦂 㸦ᾮయ❅⣲Υ㛫㸧 ࣁࣥࢲ ᗘຍ⇕ヨ㦂 㸦Υ㸧 ‵ᗘຎヨ㦂 㸦Υ5+᮲௳㸧 ࡇࡇ࡛ࠊ㝈⏺್ࡀᚓࡽࢀࡓヨ㦂ࡣࠊ ࠾ࡼࡧ ࡛ ࠶ࡾࠊࡑࢀ௨እࡢ㡯┠ࡣࠊࢣ࣮ࣈࣝᛂ⏝࡛ᐃ࡛ࡁࡿ᮲ ௳࡛ࡣ㢧ⴭ࡞ຎࡣ☜ㄆ࡛ࡁ࡞ࡗࡓࠋࡓࡔࡋࠊ⥺ᮦ✀ 㢮ࡸᵓᡂࡼࡾእࡶ࠶ࡗࡓࠋ࡚ࡢヨ㦂㡯┠ᑐᛂࡋ ࡓ⤖ᯝࢆ♧ࡍࡇࡣ࡛ࡁ࡞࠸ࡢ࡛ࠊ୍ࡋ࡚ࠊᅗ D ࠾ࡼࡧEࠊ‵ᗘࡼࡿຎࡢㄪᰝ⤖ᯝࡢࢆ♧ࡍࠋ ᅗ D&Xࡵࡗࡁ3/'B*G ⥺ᮦPPᖜࢆ PEDUࡢ୍ᐃ ‵ᗘୗ㸦Υ࡛ ‵ᗘ┦ᙜ㸧࠾࠸࡚ࠊຍ⇕ ᗘࢆ ኚΥࠊΥࠊΥࠊΥࡉࡏ࡚ࠊ,Fࡢ⤒ຎ ホ౯ࢆ⾜ࡗࡓ⤖ᯝࢆ♧ࡍࠋᅗࡼࡾࠊ ᗘࢆୖ᪼ࡉࡏࡿ ࡶࠊຎ㏿ᗘࡣ㏿ࡃ࡞ࡾࠊ ᗘ౫Ꮡࢆ♧ࡍࡇࡀุ ᫂ࡋࡓࠋࡑࡇ࡛ࠊᅗ Dࡼࡾࠊึᮇ,Fࡽ ຎࡍࡿ㏿ ᗘࢆㄪ࡚ࣞࢽ࢘ࢫࣉࣟࢵࢺࡋࡓ⤖ᯝࢆᅗ E♧ࡍࠋ ࡇࢀࡼࡾࠊࡇࡢ ᗘ⠊ᅖ࠾࠸࡚ࠊࢹ࣮ࢱࡣࡼࡃ┤⥺ ࡗ࡚࠸ࡿࡇࡀ☜ࡵࡽࢀࡓࠋࡑࡇ࡛ࠊࡼࡾప ࡛ࡶ ྠࡌᛂࡼࡾຎࡀ㐍ࡴࡇࢆ௬ᐃࡋࠊΥ࠾ࡅࡿ ຎ㏿ᗘࢆ⟬ฟࡋࡓࡇࢁࠊᮏ⥺ᮦࡣࠊຎࡍࡿࡢ ᖺ௨ୖࡿࡇࡀぢ✚ࡶࡽࢀࡓࠋࡇࡢࡇࡼࡾࠊᮏ⥺ ᮦࡣࠊ㧗 㧗‵ୗ࡛ẚ㍑ⓗ㛗ᮇ㛫ಖ⟶ࡋ࡚ࡶఱࡽၥ㢟ࡀ ࡞࠸࠸࠺ࡇࡀ♧ࡉࢀࡓࠋ Ic(t)/Ic(0) (%) 㻝䠊䛿䛨䜑䛻㻌 ㏆ᖺࠊ5( ⣔⥺ᮦࢆ⏝࠸ࡓྛ✀ᶵჾ㛤Ⓨࡀ┒ࢇ⾜ ࢃࢀ࡚࠸ࡿࠋࡇࡇ࡛ࠊࡇࢀࡽᶵჾ⏝ࡢ⥺ᮦࡀࠊࡑࡢ⏝ ⎔ቃ࠾࠸࡚ࠊ≉ᛶኚࡍࡿࡢ࠺ࢆணࡵ☜ㄆࡋ࡚ ࠾ࡃࡇࡶ㔜せ࡛࠶ࡿࠋᡃࠎࡣࠊᶵჾ⏝⥺ᮦ㛤Ⓨࡢ୍⎔ ࡋ࡚ࠊྛ✀⎔ቃࢫࢺࣞࢫ㸦㐣㟁ὶࠊᶵᲔṍࠊ⇕ṍࠊຍ ⇕ࠊ‵ᗘ㸧ࡼࡿ⥺ᮦࡢ≉ᛶኚࢆㄪᰝࡋ࡚ࡁࡓࠋࡑࡋ ࡚๓ᅇࠊ㐣㟁ὶヨ㦂⥺ᮦ㞳ࡢ᳨ウࡢ୍㒊ࢆሗ࿌ࡋࡓ >@ࠋᮏሗ࿌࡛ࡣࠊࢣ࣮ࣈࣝᛂ⏝ࢆᐃࡋࡓ㝿ᐃࡉ ࢀࡿྛ✀ࢫࢺࣞࢫ⥺ᮦ≉ᛶపୗࡢ㛵ಀࠊ≉ࠊࢫࢺࣞ ࢫࡢᙉࡉࡸ༳ຍ㛫࣭ᅇᩘᑐࡍࡿ,Fࡢຎ≉ᛶࢆホ౯ࡋࠊ ຎ㝈⏺ࡀࡢ⛬ᗘ࡞ࡢࠊࡲࡓ㝈⏺ࢆỴࡵ࡚࠸ࡿᅉᏊ ࡣఱ࡞ࡢ㛵ࡋ࡚ࠊㄪᰝࢆ⾜ࡗࡓ⤖ᯝࢆሗ࿌ࡍࡿࠋ 67 mbar H 2O 100 80 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ⷧ⭷䛾 ➨୕㧗ㄪἼ㟁ᅽㄏᑟἲ䜘䜛 Jc ᐃ The inductive measurement of Jc for YBCO thin film on SrTiO3 bicrystal substrate using the third harmonic voltage method Ἀ⏣㻌 భ, ␊୰㻌 ⿱Ꮿ䠈⸨ྜྷ Ꮥ๎䠈ᮎྜྷ ဴ㑻䠄⇃ᮏᏛ䠅䠗ᅵ ಇဢ䠄㮵ඣᓥᏛ䠅 OKITA Kensuke䠈HATANAKA Yuta䠈FUJIYOSHI Takanori䠈SUEYOSHI Tetsuro䠄Kumamoto Univ.䠅䠗 DOI Toshiya䠄Kagoshima Univ.䠅 E-mail: [email protected] V 3 / Ҁ2 [mV] 6 B = 0T500Hz 2 1kHz 2kHz 5kHz 10kHz 20kHz 0 0 20 4 40 60 I0 / Ҁ2 [mA] 80 100 Fig.1 Coil current I0 vs. the third harmonic voltage V3 B = 0 T. Jc [A/m2] 1010 (a) YBCO thin film 10 9 Crystal grain-boundary 0 1 2 3 4 5 6 7 8 9 10 Position [mm] (b) Jc [A/m 2] 1010 109 0 1 2 3 4 5 6 7 8 9 10 Position [mm] Fig.2 Spatial distribution of the YBCO thin film. 1010 2 㻞䠊ᐇ㦂㻌 ഴᩳゅ 10°䛾 SrTiO3 䝞䜲䜽䝸䝇䝍䝹ᇶᯈୖ䛻 PLD ἲ䜢⏝䛔 䛶䠈YBCO ⷧ⭷䜢స〇䛧䛯䠊⤖ᬗ⢏⏺䛿ᇶᯈ䛾୰ᚰ㒊ศ䛻 Ꮡᅾ䛩䜛䠊 ⤖ᬗ⢏⏺䛻ᑐ䛧䛶ᆶ┤䛸ᖹ⾜᪉ྥ䛻䝁䜲䝹䜢䛭䜜䛮䜜ື 䛛䛧䠈Jc 䛾⨨౫Ꮡᛶ䜢 ᐃ䛧䛯䠊䝁䜲䝹䛿䝗䝷䜲䝤䝁䜲䝹䛸䝢 䝑䜽䜰䝑䝥䝁䜲䝹䜢ศ㞳䛧䛯 2 䝁䜲䝹䜢⏝䛔䛯䠊1 䛴䛾䝪䝡䞁䛾 ෆഃ䛻䝢䝑䜽䜰䝑䝥䝁䜲䝹䜢 200 ᅇᕳ䛝䠈እഃ䛻䝗䝷䜲䝤䝁䜲䝹 䜢 300 ᅇᕳ䛔䛯䠊ྛ䝁䜲䝹䛻䛿⥺ᚄ 50ȝm 䛾䜶䝘䝯䝹㖡⥺䜢 ⏝䛔䠈䝢䝑䜽䜰䝑䝥䝁䜲䝹䛿ෆᚄ 1mm䠈እᚄ 2mm䠈㧗䛥 1mm䠈 䝗䝷䜲䝤䝁䜲䝹䛿ෆᚄ 2mm䠈እᚄ 4.75mm䠈㧗䛥 1mm 䛷䛒䜚䠈 䝁䜲䝹ᐃᩘ䛿 73.1mm-1 䛷䛒䜛䠊Jc 䛿㟁⏺ᇶ‽ Ec = 5.0ȝV/m 䜘 䜚⟬ฟ䛧䛯䠊 ☢ሙ౫Ꮡᛶ䛾 ᐃ䛿䠈YBCO ⷧ⭷䛾୰ᚰ䛻䝁䜲䝹䜢⨨䛝䠈 䝛䜸䝆䜴䝮䝬䜾䝛䝑䝖䛻䜘䜚☢ሙ䜢༳ຍ䛧䛯䠊☢ሙ䛿ⷧ⭷䛸䝬 䜾䝛䝑䝖䛾㊥㞳䜢ኚ䛘䜛䛣䛸䛻䜘䜚䠈0䡚0.25T 䜎䛷ኚ䛥䛫䛯䠊 㻌 㻟䠊⤖ᯝ䛸⪃ᐹ㻌 Fig.1 䛻⤖ᬗ⢏⏺䛾┤ୖ䛻䝁䜲䝹䜢⨨䛔䛯䛸䛝䛾⮬ᕫ☢ሙ 䛻䛚䛡䜛 I0-V3 ≉ᛶ䜢♧䛩䠊Fig.1 䛛䜙 V3 䛜 2 ẁ㝵䛷❧䛱ୖ䛜 䛳䛶䛔䜛䛣䛸䛜ศ䛛䜛䠊1 ᅇ┠䛾❧䛱ୖ䛜䜚䛿⢏㛫䛻ὶ䜜䜛㐽 ⶸ㟁ὶ䛾⮫⏺್䛻䜘䜛䜒䛾䛷䛒䜚䠈2 ᅇ┠䛾❧䛱ୖ䛜䜚䛿⢏ෆ 䛻ὶ䜜䜛㐽ⶸ㟁ὶ䛾⮫⏺್䛻䜘䜛䜒䛾䛷䛒䜛䠊䜘䛳䛶⢏㛫䛸⢏ ෆ䛾㐽ⶸ㟁ὶ䜢䛭䜜䛮䜜ᫎ䛧䛯 2 䛴䛾 Jc 䛜ホ౯䛷䛝䜛䠊 Fig.2 䛻 Jc 䛾⨨౫Ꮡᛶ䜢♧䛩䠊(a)䛜⤖ᬗ⢏⏺䜢ᶓษ䜛䜘 䛖䛻䝁䜲䝹䜢ື䛛䛧䛯䛸䛝䛾≉ᛶ䠈(b)䛜⤖ᬗ⢏⏺䛻ἢ䛳䛶䝁䜲 䝹䜢ື䛛䛧䛯䛸䛝䛾≉ᛶ䛷䛒䜛䠊䕿䛿 Jc 䜢 V3 䛾 1 ᅇ┠䛾❧䛱 ୖ䛜䜚䛛䜙ồ䜑䛯್䛷⢏㛫㟁ὶ䛾⮫⏺್䜢ᫎ䛧䛶䛔䜛䠊䖃 䛿 Jc 䜢 V3 䛾 2 ᅇ┠䛾❧䛱ୖ䛜䜚䛛䜙ồ䜑䛯್䛷⢏ෆ㟁ὶ䛾 ⮫⏺್䜢ᫎ䛧䛶䛔䜛䠊䛧䛛䛧 Fig.2 (a)䛾୧➃䛷䛿 V3 䛜༢ㄪ 䛻❧䛱ୖ䛜䜛䛯䜑 1 䛴䛾 Jc 䛾䜏ホ౯ฟ᮶䛯䠊Fig.2 (a)䛛䜙⤖ ᬗ⢏⏺䛾┤ୖ䛷䛒䜛୰ᚰ䛾 Jc 䛜᭱䜒ప䛟䛺䛳䛶䛔䜛䛣䛸䛜ศ 䛛䜛䠊୍᪉䠈Fig.2 (b)䛛䜙 Jc 䛾್䛿୰ᚰ䜘䜚㞳䜜䜛䛻䛴䜜ῶᑡ 䛧䛶䛔䜛䠊䛣䜜䛿㐽ⶸ㟁ὶ䛾ὶ䜜䜛㡿ᇦ䛜ไ㝈䛥䛫䜛䛯䜑䛷 䛒䜛䠊 Fig.3 䛻 Jc-B ≉ᛶ䜢♧䛩䠊 ᐃ⨨䛿⤖ᬗ⢏⏺䛜䛒䜛ⷧ⭷ 䛾୰ᚰ䛷䛒䜛䠊0.05T ௨ୗ䛷䛿 V3 䛿 2 ẁ㝵䛷❧䛱ୖ䛜䜛䛯䜑䠈 ⢏㛫㟁ὶ䛸⢏ෆ㟁ὶ䛻䜘䜛 2 䛴䛾 Jc 䛜ホ౯䛷䛝䜛䠊0.05T ௨ ୖ䛷䛿 V3 䛾❧䛱ୖ䛜䜚䛿༢ㄪ䛻䛺䜚☢ሙ䛾ቑຍ䛸ඹ䛻 Jc 䛿 ῶᑡ䛧䛶䛔䜛䠊 㻌 㻠䠊䜎䛸䜑㻌 ᮏ◊✲䛷䛿䠈➨୕㧗ㄪἼ㟁ᅽㄏᑟἲ䜢⏝䛔䛶 STO 䝞䜲䜽 䝸䝇䝍䝹ᇶᯈୖ䛻స〇䛧䛯 YBCO ⷧ⭷䛾 Jc 䛾⨨౫Ꮡᛶ䛸 ☢ሙ౫Ꮡᛶ䜢ホ౯䛧䛯䠊䛭䛾⤖ᯝ I0-V3 ≉ᛶ䛜 2 ẁ㝵䛷❧䛱 ୖ䛜䜚䠈⢏㛫䛸⢏ෆ䛾䛭䜜䛮䜜䛾 Jc 䜢ホ౯䛷䛝䛯䠊䜎䛯 0.05T ௨ୖ䛾☢ሙ䛷䛿 V3 䛿༢ㄪ䛻❧䛱ୖ䛜䜚䠈⢏㛫䛻㐽ⶸ㟁ὶ䛜 ὶ䜜䛺䛟䛺䛳䛶䛔䜛䛣䛸䛜☜ㄆ䛷䛝䛯䠊 Jc [A/m ] 㻝䠊䛿䛨䜑䛻㻌 ⤖ᬗ⢏⏺䛺䛹䛾ᙅ⤖ྜ䛿䠈㧗 ㉸ఏᑟయ䛾⮫⏺㟁ὶᐦ ᗘ Jc 䜢ῶᑡ䛥䛫䜛᭱䛾せᅉ䛻䛺䛳䛶䛔䜛䠊ᮏ◊✲䛷䛿䠈㉸ ఏᑟⷧ⭷䛾 Jc 䜢㠀◚ቯ䞉㠀᥋ゐ䛷䛥䜙䛻ᒁᡤⓗ䛻 ᐃ䛷䛝䜛 ➨୕㧗ㄪἼ㟁ᅽㄏᑟἲ[1,2]䜢⏝䛔䛶䠈䝞䜲䜽䝸䝇䝍䝹ᇶᯈୖ 䛻స〇䛧䛯 YBCO ⷧ⭷䛾 Jc 䛾⨨౫Ꮡᛶ䛸☢ሙ౫Ꮡᛶ䜢 ᐃ䛧䛯䠊 Lth=5ȣH Ec=5ȣV/m 109 0 0.05 0.1 0.15 0.2 0.25 B [T] Fig.3 Magnetic field dependence of Jc. ཧ⪃ᩥ⊩㻌 1. H. Yamasaki, et al.: Appl. Phys. Lett. 82 (2003) 3275. 2. H. Yamada, et al.: Physica C 451 (2007) 107. ― 135 ― 第83回 2010年度秋季低温工学・超電導学会 1P-p39 送電ケーブル (1) ㉸ఏᑟ┤ὶ㏦㟁䜿䞊䝤䝹䛾䛯䜑䛾⮫⏺㟁ὶ䛾 ᐃ㻌 㻯㼞㼕㼠㼕㼏㼍㼘㻌㼏㼡㼞㼞㼑㼚㼠㻌㼙㼑㼍㼟㼡㼞㼑㼙㼑㼚㼠㼟㻌㼒㼛㼞㻌㼐㼑㼟㼕㼓㼚㻌㼛㼒㻌㼟㼡㼜㼑㼞㼏㼛㼚㼐㼡㼏㼠㼕㼚㼓㻌㻰㻯㻌㼠㼞㼍㼚㼟㼙㼕㼟㼟㼕㼛㼚㻌㼜㼛㼣㼑㼞㻌㼏㼍㼎㼘㼑㼟㻌 Critical current Ic (A) Electrical field (V/cm) 㻌 Ꮮ㻌 ᘓ䠈ᒣෆ㻌 㥴䠈Ώ㑓㻌 ⿱ᩥ䠈㎶㻌 ㄔ䠈Ἑཎ㻌 ᩄ⏨䠈ᒣཱྀ㻌 సኴ㑻䠄୰㒊Ꮫ䠅㻌 㻿㼁㻺㻌㻶㼕㼍㼚䠈㼅㻭㻹㻭㼁㻯㻴㻵㻌㻿㼔㼡㼚㻘㻌㼃㻭㼀㻭㻺㻭㻮㻱㻌㻴㼕㼞㼛㼒㼡㼙㼕㻘㻌㻴㻭㻹㻭㻮㻱㻌㻹㼍㼗㼛㼠㼛㻘㻌㻷㻭㼃㻭㻴㻭㻾㻭㻌㼀㼛㼟㼔㼕㼛㻘㻌㼅㻭㻹㻭㻳㼁㻯㻴㻵㻌㻿㼍㼠㼍㼞㼛㼡㻌㻔㻯㼔㼡㼎㼡㻌 㼁㼚㼕㼢㼑㼞㼟㼕㼠㼥㻕㻌 㻱㻙㼙㼍㼕㼘㻦㻌㼖㼋㼟㼡㼚㻬㼕㼟㼏㻚㼏㼔㼡㼎㼡㻚㼍㼏㻚㼖㼜㻌 㻌 㻝䠊㻵㼚㼠㼞㼛㼐㼡㼏㼠㼕㼛㼚㻌 I 㼀㼔㼑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㻔㻴㼀㻿㻕㻌㼏㼍㼎㼘㼑㻌㼒㼛㼞㻌㻰㻯㻌 28 cm 㼜㼛㼣㼑㼞㻌㼠㼞㼍㼚㼟㼙㼕㼟㼟㼕㼛㼚㻌㼔㼍㼟㻌㼎㼑㼑㼚㻌㼟㼠㼡㼐㼕㼑㼐㻌㼍㼠㻌㻯㼔㼡㼎㼡㻌㼁㼚㼕㼢㼑㼞㼟㼕㼠㼥㻚㻌㻭㻌 9 cm 9 cm d = 0.4 mm, 2.5 mm, d d (a) 1 2 3 㼚㼑㼣㻌 㻞㻜㻜㻌 㼙㻌 㻴㼀㻿㻌 㻰㻯㻌 㼏㼍㼎㼘㼑㻌 㼣㼍㼟㻌 㼕㼚㼟㼠㼍㼘㼘㼑㼐㻌 㼕㼚㼠㼛㻌 㼍㻌 㼠㼑㼟㼠㻌 㼒㼍㼏㼕㼘㼕㼠㼥㻌 w1 4.5 mm, 6.5 mm, 8.5 mm 㼟㼕㼚㼏㼑㻌 㻞㻜㻜㻥㻚㻌 㼀㼔㼕㼟㻌 㼏㼛㼍㼤㼕㼍㼘㻌 㼏㼍㼎㼘㼑㻌 㼔㼍㼟㻌 㼠㼣㼛㻌 㼘㼍㼥㼑㼞㼟㻌 㼣㼕㼠㼔㻌 㼐㼕㼒㼒㼑㼞㼑㼚㼠㻌 d (b) d = -1.25 mm, -2.25 mm 4 5 6 w2 㼚㼡㼙㼎㼑㼞㻌㼛㼒㻌㻮㻿㻿㻯㻻㻌㼣㼕㼞㼑㼟㻘㻌㼕㻚㼑㻚㻘㻌㼠㼔㼑㻌㼕㼚㼚㼑㼞㻌㼘㼍㼥㼑㼞㻌㼔㼍㼟㻌㻞㻟㻌㼣㼕㼞㼑㼟㻌㼍㼚㼐㻌 㼠㼔㼑㻌㼛㼡㼠㼑㼞㻌㼘㼍㼥㼑㼞㻌㼔㼍㼟㻌㻝㻢㻌㼣㼕㼞㼑㼟㻌㼒㼛㼞㻌㼠㼔㼑㻌㼐㼕㼒㼒㼑㼞㼑㼚㼠㻌㼞㼍㼐㼕㼡㼟㻌㼛㼒㻌㼠㼔㼑㼟㼑㻌 w3 7 8 9 d (c) d = -4.5 mm 㼠㼣㼛㻌㼏㼛㼚㼐㼡㼏㼠㼛㼞㻌㼘㼍㼥㼑㼞㼟㻌㼇㻝㼉㻚㻌㼀㼔㼑㻌㼞㼍㼠㼕㼚㼓㻌㼏㼡㼞㼞㼑㼚㼠㻌㼛㼒㻌㼠㼔㼑㻌㼏㼍㼎㼘㼑㻌㼕㼟㻌㻞㻌 8 cm 㼗㻭㻘㻌㼣㼔㼕㼏㼔㻌㼕㼟㻌㼐㼑㼠㼑㼞㼙㼕㼚㼑㼐㻌㼎㼥㻌㼠㼔㼑㻌㼙㼍㼤㼕㼙㼡㼙㻌㼏㼡㼞㼞㼑㼚㼠㻌㼛㼒㻌㼠㼔㼑㻌㼛㼡㼠㼑㼞㻌 10 cm 㼏㼛㼚㼐㼡㼏㼠㼛㼞㻌 㼘㼍㼥㼑㼞㻚㻌 㻵㼚㻌 㼛㼞㼐㼑㼞㻌 㼠㼛㻌 㼙㼍㼗㼑㻌 㼠㼔㼑㻌 㼙㼍㼓㼚㼑㼠㼕㼏㻌 㼒㼕㼑㼘㼐㻌 㼘㼕㼚㼑㻌 㼏㼕㼞㼏㼡㼘㼍㼞㻌㼍㼞㼛㼡㼚㼐㻌㼠㼔㼑㻌㼏㼍㼎㼘㼑㻘㻌㼠㼔㼑㻌㻴㼀㻿㻌㼣㼕㼞㼑㼟㻌㼟㼔㼛㼡㼘㼐㻌㼎㼑㻌㼣㼛㼡㼚㼐㻌㼍㼟㻌 㼏㼘㼛㼟㼑㻌㼍㼟㻌㼜㼛㼟㼟㼕㼎㼘㼑㻚㻌㻵㼚㻌㼒㼍㼏㼠㻘㻌㼠㼔㼑㻌㼓㼍㼜㻌㼏㼍㼚㻌㼚㼛㼠㻌㼐㼕㼟㼍㼜㼜㼑㼍㼞㻌㼕㼚㻌㼙㼍㼗㼕㼚㼓㻌 㻲㼕㼓㻚㻝㻌㻭㻌㼟㼏㼔㼑㼙㼑㻌㼛㼒㻌㼠㼔㼑㻌㼠㼞㼕㼜㼘㼑㻌㻴㼀㻿㻌㼣㼕㼞㼑㼟㻌㼍㼞㼞㼍㼚㼓㼑㼙㼑㼚㼠 㼍㻌 㼏㼍㼎㼘㼑㻌 㼒㼛㼞㻌 㼠㼔㼑㻌 㼜㼛㼘㼥㼓㼛㼚㼍㼘㻌 㼟㼔㼍㼜㼑㻌 㼛㼒㻌 㼠㼔㼑㻌 㻴㼀㻿㻌 㼣㼕㼞㼑㼟㻚㻌 㼀㼔㼑㻌 㼓㼍㼜㻌 5 㼑㼒㼒㼑㼏㼠㻌㼣㼕㼘㼘㻌㼍㼒㼒㼑㼏㼠㻌㼠㼔㼑㻌㼏㼞㼕㼠㼕㼏㼍㼘㻌㼏㼡㼞㼞㼑㼚㼠㻌㼛㼒㻌㻴㼀㻿㻌㼣㼕㼞㼑㻌㼕㼚㻌㼠㼔㼑㻌㼏㼍㼎㼘㼑㻌 Single 㼍㼚㼐㻌㼒㼕㼚㼍㼘㼘㼥㻌㼐㼑㼠㼑㼞㼙㼕㼚㼑㻌㼠㼔㼑㻌㼞㼍㼠㼕㼚㼓㻌㼏㼡㼞㼞㼑㼚㼠㻌㼛㼒㻌㼠㼔㼑㻌㼏㼍㼎㼘㼑㻚㻌㻵㼚㻌㼛㼞㼐㼑㼞㻌 Triple (d = -2.25 mm) 4 㼠㼛㻌㼛㼎㼟㼑㼞㼢㼑㻌㼔㼛㼣㻌㼙㼡㼏㼔㻌㼓㼍㼜㻌㼑㼒㼒㼑㼏㼠㻌㼛㼚㻌㼠㼔㼑㻌㼏㼞㼕㼠㼕㼏㼍㼘㻌㼏㼡㼞㼞㼑㼚㼠㻌㼛㼒㻌㼠㼔㼑㻌 㻴㼀㻿㻌 㼣㼕㼞㼑㻌 㼕㼚㻌 㼠㼔㼑㻌 㼏㼍㼎㼘㼑㻘㻌 㼣㼑㻌 㼔㼍㼢㼑㻌 㼎㼑㼑㼚㻌 㼟㼠㼡㼐㼥㼕㼚㼓㻌 㼠㼔㼑㻌 㼑㼒㼒㼑㼏㼠㻌 3 㼏㼍㼡㼟㼑㼐㻌㼠㼛㻌㼠㼔㼑㻌㼙㼍㼤㼕㼙㼡㼙㻌㼏㼡㼞㼞㼑㼚㼠㻌㼛㼒㻌㼠㼔㼑㻌㼏㼍㼎㼘㼑㼟㻌㼎㼥㻌㼠㼔㼑㻌㼣㼍㼥㻌㼛㼒㻌㼠㼔㼑㻌 㻴㼀㻿㻌㼣㼕㼞㼑㻌㼣㼕㼚㼐㼕㼚㼓㻌㼇㻞㼉㻚㻌 㻌 2 㻌 㻞䠊㻱㼤㼜㼑㼞㼕㼙㼑㼚㼠㻌 1 㼀㼔㼞㼑㼑㻌 㼙㼡㼘㼠㼕㼒㼕㼘㼍㼙㼑㼚㼠㼍㼞㼥㻌 㻰㻵㻙㻮㻿㻿㻯㻻㻌 㼣㼕㼞㼑㼟㻌 㼎㼥㻌 㻿㼡㼙㼕㼠㼛㼙㼛㻌 㻱㼘㼑㼏㼠㼞㼕㼏㻌㻵㼚㼐㼡㼟㼠㼞㼕㼑㼟㻌㼣㼑㼞㼑㻌㼟㼑㼠㻌㼜㼍㼞㼍㼘㼘㼑㼘㻌㼠㼛㻌㼑㼍㼏㼔㻌㼛㼠㼔㼑㼞㻌㼛㼚㻌㼍㻌㻲㻾㻼㻌 0 0 20 40 60 80 100 120 140 160 180 200 㻔㻲㼕㼎㼞㼑㻙㼞㼑㼕㼚㼒㼛㼞㼏㼑㼐㻌 㼜㼘㼍㼟㼠㼕㼏㻕㻌 㼜㼘㼍㼠㼑㻌 㼍㼟㻌 㼟㼔㼛㼣㼚㻌 㼕㼚㻌 㻲㼕㼓㻚㻝㻚㻌 㼀㼔㼑㻌 Transport current (A) 㼠㼞㼍㼚㼟㼜㼛㼞㼠㻌 㼏㼡㼞㼞㼑㼚㼠㻌 㼣㼍㼟㻌 㼒㼑㼐㻌 㼕㼚㼠㼛㻌 㼠㼔㼞㼑㼑㻌 㼣㼕㼞㼑㼟㻌 㼕㼚㻌 㼟㼑㼞㼕㼑㼟㻌 㼙㼛㼐㼑㻚㻌 㻱㼍㼏㼔㻌㼣㼕㼞㼑㻌㼕㼟㻌㼟㼡㼞㼞㼛㼡㼚㼐㼑㼐㻌㼣㼕㼠㼔㻌㼛㼚㼑㻌㻷㼍㼜㼠㼛㼚㻙㼠㼍㼜㼑㻌㼘㼍㼥㼑㼞㻌㻔~㻢㻥㻌μ㼙㻕㻌 㻲㼕㼓㻚㻞㻌㻭㻌㼏㼛㼙㼜㼍㼞㼕㼟㼛㼚㻌㼛㼒㻌㻱㻙㻵㻌㼏㼔㼍㼞㼍㼏㼠㼑㼞㼕㼟㼠㼕㼏㼟㻌㼏㼡㼞㼢㼑㻌㼛㼒㻌㼍㻌 㼠㼛㻌 㼎㼑㻌 㼕㼚㼟㼡㼘㼍㼠㼑㼐㻌 㼣㼕㼠㼔㻌 㼑㼍㼏㼔㻌 㼛㼠㼔㼑㼞㻚㻌 㼀㼔㼞㼑㼑㻌 㼢㼛㼘㼠㼍㼓㼑㻌 㼠㼍㼜㼟㻌 㼣㼑㼞㼑㻌 㻴㼀㻿㻌㼣㼕㼞㼑㻌㼒㼛㼞㻌㼟㼕㼚㼓㼘㼑㻌㼍㼚㼐㻌㼠㼞㼕㼜㼘㼑㻌㼍㼞㼞㼍㼚㼓㼑㼙㼑㼚㼠㻌㻔㻲㼕㼓㻌㻝㻔㼎㻕㻕㻚㻌 㼍㼠㼠㼍㼏㼔㼑㼐㻌㼛㼚㻌㼑㼍㼏㼔㻌㼣㼕㼞㼑㻚㻌㼀㼔㼑㻌㼏㼞㼕㼠㼕㼏㼍㼘㻌㼏㼡㼞㼞㼑㼚㼠㼟㻌㼛㼒㻌㼠㼔㼑㻌㼣㼕㼞㼑㼟㻌㼣㼔㼕㼏㼔㻌 㼣㼑㼞㼑㻌㼟㼑㼠㻌㼎㼑㼠㼣㼑㼑㼚㻌㼠㼣㼛㻌㼣㼕㼞㼑㼟㻌㼣㼑㼞㼑㻌㼙㼑㼍㼟㼡㼞㼑㼐㻌㼣㼕㼠㼔㻌㼞㼑㼟㼜㼑㼏㼠㻌㼠㼛㻌㼠㼔㼑㻌 190 㼓㼍㼜㻌㼎㼑㼠㼣㼑㼑㼚㻌㼠㼔㼑㻌㼣㼕㼞㼑㼟㻌㼛㼚㻌㼠㼔㼑㻌㼏㼞㼕㼠㼑㼞㼕㼛㼚㻌㼛㼒㻌㻝ȝ㼂㻛㼏㼙㻌㼍㼠㻌㻣㻣㻷㻚㻌 Fig.1 (b) 㻌 180 Fig.1 (a) 㻟䠊㻾㼑㼟㼡㼘㼠㼟㻌㼍㼚㼐㻌㼐㼕㼟㼏㼡㼟㼟㼕㼛㼚㼟㻌 Ic0 170 㻲㼕㼓㻚㻞㻌㼟㼔㼛㼣㼟㻌㼍㻌㼏㼛㼙㼜㼍㼞㼕㼟㼛㼚㻌㼛㼒㻌㻱㻙㻵㻌㼏㼔㼍㼞㼍㼏㼠㼑㼞㼕㼟㼠㼕㼏㼟㻌㼏㼡㼞㼢㼑㻌㼛㼒㻌㼍㻌 㻴㼀㻿㻌 㼣㼕㼞㼑㻌 㼒㼛㼞㻌 㼟㼕㼚㼓㼘㼑㻌 㼍㼚㼐㻌 㼠㼞㼕㼜㼘㼑㻌 㼍㼞㼞㼍㼚㼓㼑㼙㼑㼚㼠㻌 㼣㼕㼠㼔㻌 㼓㼍㼜㻌 㼛㼒㻌 㼐㻌 㻩㻌 160 㻙㻞㻚㻞㻡㻌㼙㼙㻌㼕㼚㻌㻲㼕㼓㻚㻝㻔㼎㻕㻚㻌㼀㼔㼑㻌㻵㼏㻌㼛㼒㻌㼠㼔㼑㻌㼣㼕㼞㼑㻌㼕㼚㻌㼠㼔㼑㻌㼟㼑㼘㼒㻌㼒㼕㼑㼘㼐㻌㼕㼟㻌~㻝㻢㻢㻌 㻭㻚㻌㼀㼔㼑㻌㼏㼞㼕㼠㼕㼏㼍㼘㻌㼏㼡㼞㼞㼑㼚㼠㻌㼛㼒㻌㼠㼔㼑㻌㼙㼕㼐㼐㼘㼑㻌㼣㼕㼞㼑㻌㼒㼛㼞㻌 㼐㻌㻩㻌㻙㻞㻚㻞㻡㻌㼙㼙㻌 150 㼎㼑㼏㼛㼙㼑㼟㻌㼘㼍㼞㼓㼑㼞㻌㼠㼔㼍㼚㻌㼠㼔㼍㼠㻌㼛㼒㻌㼠㼔㼑㻌㼟㼕㼚㼓㼘㼑㻌㼛㼚㼑㻚㻌㼀㼔㼑㻌㻵㼏㻌㼒㼛㼞㻌㼠㼣㼛㻌㼘㼍㼥㼑㼞㻌 Fig.1 (c) 㼏㼛㼚㼒㼕㼓㼡㼞㼍㼠㼕㼛㼚㻌㼎㼑㼏㼛㼙㼑㼟㻌㼘㼍㼞㼓㼑㼞㻌㼠㼔㼍㼚㻌㼠㼔㼑㻌㼟㼕㼚㼓㼘㼑㻌㼛㼚㼑㻌㼎㼑㼏㼍㼡㼟㼑㻌㼠㼔㼑㻌 140 㼟㼑㼘㼒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㼟㻌㼍㼒㼒㼑㼏㼠㼑㼐㻌㼎㼥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 㼠㼔㼑㻌 㼏㼡㼞㼞㼑㼚㼠㻌 㼕㼚㻌 㼠㼔㼑㻌 㼍㼐㼖㼍㼏㼑㼚㼠㻌 㼣㼕㼞㼑㼟㻚㻌 㼃㼕㼠㼔㻌 㼐㼑㼏㼞㼑㼍㼟㼕㼚㼓㻌 㼠㼔㼑㻌 130 -6 -4 -2 0 2 4 6 8 10 㼓㼍㼜㻘㻌㼠㼔㼑㻌㼐㼕㼟㼠㼛㼞㼠㼕㼛㼚㻌㼛㼒㻌㼠㼔㼑㻌㼙㼍㼓㼚㼑㼠㼕㼏㻌㼒㼕㼑㼘㼐㻌㼎㼑㼏㼛㼙㼑㼟㻌㼟㼠㼞㼛㼚㼓㼑㼞㻌㼎㼥㻌 Lateral space gap (mm) 㼠㼔㼑㻌 㼍㼐㼖㼍㼏㼑㼚㼠㻌 㼣㼕㼞㼑㼟㻘㻌 㼣㼔㼕㼏㼔㻌 㼣㼛㼡㼘㼐㻌 㼘㼑㼍㼐㻌 㼠㼛㻌 㼞㼑㼐㼡㼏㼠㼕㼛㼚㻌 㼛㼒㻌 㼠㼔㼑㻌 㻲㼕㼓㻚㻟㻌㼀㼔㼑㻌㼏㼞㼕㼠㼕㼏㼍㼘㻌㼏㼡㼞㼞㼑㼚㼠㻌㼛㼒㻌㼍㻌㼙㼕㼐㼐㼘㼑㻌㻴㼀㻿㻌㼣㻞㻌㼣㼕㼠㼔㻌 㼙㼍㼓㼚㼑㼠㼕㼏㻌㼢㼑㼞㼠㼕㼏㼍㼘㻌㼏㼛㼙㼜㼛㼚㼑㼚㼠㻌㼠㼛㻌㼠㼔㼑㻌㼣㼕㼐㼑㻌㼣㼕㼞㼑㻌㼟㼡㼞㼒㼍㼏㼑㻚㻌㻲㼕㼓㻚㻟㻌 㼞㼑㼟㼜㼑㼏㼠㻌㼠㼛㻌㼠㼔㼑㻌㼘㼍㼠㼑㼞㼍㼘㻌㼟㼜㼍㼏㼑㻌㼓㼍㼜㻚㻌 㻌 㼜㼞㼑㼟㼑㼚㼠㼟㻌 㼠㼔㼑㻌 㻵㼏㻌 㼛㼒㻌 㼠㼔㼑㻌 㼙㼕㼐㼐㼘㼑㻌 㼣㼕㼞㼑㻌 㼣㼕㼠㼔㻌 㼞㼑㼟㼜㼑㼏㼠㻌 㼠㼛㻌 㼠㼔㼑㻌 㼓㼍㼜㻌 㼎㼑㼠㼣㼑㼑㼚㻌 㼠㼔㼑㻌 㼣㼕㼞㼑㼟㻚㻌 㼀㼔㼑㻌 㻵㼏㻌 㼛㼒㻌 㼠㼔㼞㼑㼑㻌 㼘㼍㼥㼑㼞㻌 㼕㼟㻌 㼐㼑㼏㼞㼑㼍㼟㼑㼐㻌 㻌 㼐㼞㼍㼟㼠㼕㼏㼍㼘㼘㼥㻌㼎㼥㻌㻝㻣㻑㻌㼠㼛㻌㻝㻟㻣㻌㻭㻚㻌㼀㼔㼑㻌 㻵㼏㻌㼛㼒㻌㼠㼔㼑㻌㻴㼀㻿㻌㼣㼕㼞㼑㻌㼎㼑㼏㼛㼙㼑㼟㻌 㻾㼑㼒㼑㼞㼑㼚㼏㼑㼟㻌 㼙㼍㼤㼕㼙㼡㼙㻌㼒㼛㼞㻌㼠㼣㼛㻌㼘㼍㼥㼑㼞㻌㼍㼞㼞㼍㼚㼓㼑㼙㼑㼚㼠㻚㻌㼀㼔㼞㼛㼡㼓㼔㻌㼠㼔㼑㻌㼟㼥㼟㼠㼑㼙㼍㼠㼕㼏㻌 㻝㻚㻌 㻹㻚㻌 㻴㼍㼙㼍㼎㼑㻘㻌 㼑㼠㻌 㼍㼘㻚㻧㻌 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 㼂㼛㼘㻚㻤㻞㻌 㼛㼎㼟㼑㼞㼢㼍㼠㼕㼛㼚㻌㼛㼒㻌㼠㼔㼑㻌㼐㼑㼜㼑㼚㼐㼑㼚㼏㼑㻌㼛㼒㻌㼠㼔㼑㻌㼏㼞㼕㼠㼕㼏㼍㼘㻌㼏㼡㼞㼞㼑㼚㼠㻌㼛㼚㻌㼠㼔㼑㻌 㻔㻞㻜㻝㻜㻕㻌㼜㻚㻤㻥㻌 㻌 㼓㼍㼜㻌㼣㼕㼘㼘㻌㼓㼕㼢㼑㻌㼟㼛㼙㼑㻌㼔㼕㼚㼠㻌㼛㼚㻌㼠㼔㼑㻌㼐㼑㼟㼕㼓㼚㻌㼛㼒㻌㼍㻌㻴㼀㻿㻌㻰㻯㻌㼏㼍㼎㼘㼑㻚㻌㼃㼑㻌 㻞㻚㻌㻴㻚㻌㼃㼍㼠㼍㼚㼍㼎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㻤㻞㻌 㼟㼕㼙㼡㼘㼍㼠㼑㻌 㼠㼔㼑㻌 㼙㼍㼓㼚㼑㼠㼕㼏㻌 㼒㼘㼡㼤㻌 㼘㼕㼚㼑㼟㻌 㼎㼥㻌 㼠㼔㼑㻌 㼏㼛㼙㼙㼑㼞㼏㼕㼍㼘㻌 㼒㼕㼚㼕㼠㼑㻌 㻔㻞㻜㻝㻜㻕㻌㼜㻚㻥㻝㻌 㼑㼘㼑㼙㼑㼚㼠㻌 㼏㼛㼐㼑㻌 㻔㻭㻺㻿㼅㻿㻕㻌 㼇㻟㼉㻚㻌 㻵㼚㻌 㼛㼡㼞㻌 㼣㼛㼞㼗㻘㻌 㼣㼑㻌 㼣㼕㼘㼘㻌 㼜㼞㼑㼟㼑㼚㼠㻌 㼠㼔㼑㻌 㻟㻚㻌 㼔㼠㼠㼜㻦㻛㻛㼣㼣㼣㻚㼍㼚㼟㼥㼟㻚㼏㼛㼙㻛 㼑㼤㼜㼑㼞㼕㼙㼑㼚㼠㼍㼘㻌㼍㼚㼐㻌㼏㼍㼘㼏㼡㼘㼍㼠㼑㼐㻌㼞㼑㼟㼡㼘㼠㼟㻌㼍㼚㼐㻌㼐㼕㼟㼏㼡㼟㼟㻌㼠㼔㼑㻌㼐㼑㼟㼕㼓㼚㻌㼛㼒㻌㼍㻌 㻴㼀㻿㻌㼜㼛㼣㼑㼞㻌㼏㼍㼎㼘㼑㻌㼑㼟㼜㼑㼏㼕㼍㼘㼘㼥㻌㼒㼛㼞㻌㻰㻯㻌㼠㼞㼍㼚㼟㼙㼕㼟㼟㼕㼛㼚㻚㻌 㻌 ― 136 ― 第83回 2010年度秋季低温工学・超電導学会 1P-p40 送電ケーブル (1) 㻢㻢䡇㼂 ⣔⤫㉸㟁ᑟ㟁ຊ䜿䞊䝤䝹䛾▷⤡ᨾ䜢ᐃ䛧䛯㻌 㻾㻱㻮㻯㻻 ㉸㟁ᑟ⥺ᮦ䛾ὶ㐣㟁ὶ㏻㟁≉ᛶホ౯㻌 㻭㻯㻌㻻㼢㼑㼞㻙㻯㼡㼞㼞㼑㼚㼠㻌㻯㼔㼍㼞㼍㼏㼠㼑㼞㼕㼟㼠㼕㼏㼟㻌㼛㼒㻌㻾㻱㻮㻯㻻㻌㻯㼛㼍㼠㼑㼐㻌㻯㼛㼚㼐㼡㼏㼠㼛㼞㼟㻌 㻌 ඣᓥ㻌 ኴ㑻䠈㻌 ⓒ㊊㻌 ᘯྐ䠈㻌 ⋤㻌 ᪫ᮾ䠈㻌 ᳜⏣㻌 ᾈྐ䠈㻌 ▼ᒣ㻌 ᩔኈ䠄᪩✄⏣Ꮫ䠅䠗㻌 ᒇ㻌 ṇ⩏㻘㻌 ᯇ㻌 ୍ஓ䠄ఫ㟁ᕤ䠅㻧㻌 ⇃㻌 Ṋ㻘㻌 ᒣ㻌 ಟ䠄㻵㻿㼀㻱㻯㻙㻿㻾㻸䠅㻌 㻷㻻㻶㻵㻹㻭㻌㻷㼑㼚㼠㼍㼞㼛㻘㻌㻹㻻㻹㻻㼀㻭㻾㻵㻌㻴㼕㼞㼛㼟㼔㼕㻘㻌㼃㻭㻺㻳㻌㼄㼡㼐㼛㼚㼓䠈㼁㻱㻰㻭㻌㻴㼕㼞㼛㼟㼔㼕䠈㻵㻿㻴㻵㼅㻭㻹㻭㻌㻭㼠㼟㼡㼟㼔㼕㻌㻔㼃㼍㼟㼑㼐㼍㻌㼁㼚㼕㼢㼑㼞㼟㼕㼠㼥㻕㻧㻌 㻌 㻻㻴㼅㻭㻌㻹㼍㼟㼍㼥㼛㼟㼔㼕㻘㻌㻻㻹㻭㼀㻿㼁㻌㻷㼍㼦㼡㼥㼍㻌㻔㻿㼡㼙㼕㼠㼛㼙㼛㻌㻱㼘㼑㼏㼠㼞㼕㼏㻕㻧㻌㻻㻴㻷㼁㻹㻭㻌㼀㻭㻷㻱㻿㻴㻵㻘㻌㻹㻭㻾㼁㼅㻭㻹㻭㻌㻻㻿㻭㻹㼁㻌㻔㻵㻿㼀㻱㻯㻙㻿㻾㻸㻕㻌 㻌 㻱㻙㼙㼍㼕㼘㻦㻌㼍㼠㼟㼡㼟㼔㼕㻬㼣㼍㼟㼑㼐㼍㻚㼖㼜㻌 㻌 Table.1 Specifications of YBCO sample tapes 䠍䠊䛿䛨䜑䛻㻌 Length,㻌 㻌 㻌 mm 150 㻢㻢㻌 㼗㼂 ⣔⤫㉸㟁ᑟ䜿䞊䝤䝹䛾㛤Ⓨ䛻䛚䛔䛶䚸᭱䛷 㻟㻝㻚㻡㻌 Width,㻌 㻌 㻌 mm 2 㼗㻭㼞㼙㼟䚸㻞㻌 㼟 䛾▷⤡ᨾ㟁ὶ䛜ᐃ䛥䜜䛶䛔䜛䚹䛭䛾䛯䜑ྛ⣲ Cu (plating thickness) ȝm 20 ⥺䛻ὶ䜜䜛▷⤡ᨾ㟁ὶ䛻䜘䜛⥺ᮦ䛾≉ᛶຎ䜔↝ᦆ䛧䛺 Ag (plating thickness) ȝm㻌 5 䛔㟁ὶ䛾㝈⏺್䜢ㄪᰝ䛧䚸ᐃ䛧䛯ᨾ㟁ὶ䛻ᑐ䛩䜛⿱ᗘ GdBa Cu O Thickness ȝm 2.0 2 3 x 䜢ホ౯䛧䛶䛚䛟ᚲせ䛜䛒䜛䚹ᅇ䛿䚸㛤Ⓨ䛧䛯ィ⟬ᶵ䝅䝭䝳䝺 Hastelloy Thickness ȝm 120 䞊䝍㼇㻝㼉䜢⏝䛔䛶䜿䞊䝤䝹ෆ㒊䛾ྛ㉸㟁ᑟ⥺ᮦ䛻ὶ䜜䜛▷⤡ Ic0 㻌 㻌 㻌 㻌 㻌 A 97.0 91.8 94.6 ᨾ㟁ὶ䜢ồ䜑䛯䚹䛭䛧䛶䚸䛣䛾䝅䝭䝳䝺䞊䝅䝵䞁䛸ྠ䛨Ἴᙧ䛾 㟁ὶ䜢㉸㟁ᑟ⥺ᮦ䛻ᐇ㝿䛻㏻㟁䛧䚸㟁ὶ䛾䝢䞊䜽್䠄㻵㼜㼑㼍㼗䠅䜢 䝟䝷䝯䞊䝍䛻≉ᛶຎ䜎䛷䛾⿱ᗘ䛻䛴䛔䛶ㄪ䜉䛯䚹䜎䛯䝢䞊 䜽್䜢ኚ䛥䛫䛪䛻 㻟㻜 ᅇ㏻㟁䛧䚸⤒ᖺຎ䛻㛵䛩䜛ㄪᰝ䜒 ⾜䛳䛯䛾䛷ሗ࿌䛩䜛䚹䛺䛚䚸ᮏ◊✲䛿䛂䜲䝑䝖䝸䜴䝮⣔㉸㟁ᑟ 㟁ຊᶵჾᢏ⾡㛤Ⓨ䝥䝻䝆䜵䜽䝖䛃䛾୍㒊䛸䛧䛶 1('2 䛾ጤク䛻 䜘䜚ᐇ䛧䛯䜒䛾䛷䛒䜛䚹㻌 䠎䠊䝅䝭䝳䝺䞊䝅䝵䞁㻌 㻌 ᮏゎᯒ䛻⏝䛔䛯䝅䝭䝳䝺䞊䝅䝵䞁䝰䝕䝹ཬ䜃䝥䝻䜾䝷䝮䛿ཧ ⪃ᩥ⊩㼇㻝㼉䛻䛶ሗ࿌䛧䛯䜒䛾䛷䛒䜛䚹㻌 ゎᯒ᮲௳䛸䛧䛶䚸䜿䞊䝤䝹䛾ᵝ䜢௨ୗ䛾䜘䛖䛻ᐃ䛧䛯䚹 䝣䜷䞊䝬䛾㖡䜚⥺䛾᩿㠃✚䜢 㻝㻠㻜㻌 㼙㼙㻞䚸㻴㼀㻿 ᑟయᒙ䛿 㻠㻌 㼙㼙 ᖜ 㻯㼘㼍㼐 ᇶᯈ⥺ᮦ䜢⏝䛔䛯 㻠 ᒙ䠄⥲ᩘ 㻡㻝 ᮏ䠅䛷እᚄ 㻞㻞㻌㼙㼙䚸 ⤯⦕ᒙ䛿 㻼㻼㻸㻼 ཌ䛥 㻢㻌㼙㼙 䛷እᚄ 㻟㻠㻌㼙㼙䚸㻴㼀㻿 䝅䞊䝹䝗ᒙ䛿 㻠㻌 㼙㼙 ᖜ 㻯㼘㼍㼐 ᇶᯈ⥺ᮦ䜢⏝䛔䛯 㻞 ᒙ䠄⥲ᩘ 㻠㻡 ᮏ䠅䛷እᚄ䛿 㻟㻣㻌㼙㼙䚸㖡䝅䞊䝹䝗ಖㆤᒙ䛿 㻠 ᒙ䛷እᚄ䛜 㻠㻝㻌㼙㼙 䛷䛒䜛䚹㛗 䛥䛿 㻝㻌 㼙 䛸䛩䜛䚹䛣䛾䜿䞊䝤䝹䛻 㻟㻝㻚㻡㻌 㼗㻭㼞㼙㼟䚸㻢㻜㻌 㻴㼦䚸㻞㻌 㼟 䛾 ὶ㐣㟁ὶ䛜ὶ䜜䛯䛻ᑟయᒙ䛾ྛᒙ䛻ὶ䜜䜛㟁ὶἼᙧ䜢ゎ ᯒ䛧䛯䚹䛭䛧䛶᭱䜒㟁ὶ䛜ὶ䜜䜛ᒙ䛾ྛ⣲⥺䛜⤒㦂䛩䜛㟁ὶ Ἴᙧ䜢ồ䜑䛯䚹ゎᯒ⤖ᯝ䜢 㻲㼕㼓㻚㻝 䛻♧䛩䚹㻌 㻌 䠏䠊ᐇ㦂᪉ἲ㻌 ᐇ㦂䛻⏝䛔䛯⥺ᮦ䛾ㅖඖ䜢 Table.1 䛻♧䛩䚹⏝ព䛧䛯 6 ᮏ 䛾⥺ᮦ䛿䛩䜉䛶ྠ䛨ㅖඖ䛷䛒䜚䚸Ᏻᐃᒙ䛸䛧䛶㖟ᒙ䛸㖡ᒙ 䛜䝯䝑䜻ຍᕤ䛥䜜䛯䜒䛾䛷䛒䜛䚹 ᐇ㦂䛿 㻳㻹 ෭ᶵ䛻䜘䜛ఏᑟ෭༷᪉ᘧ䜢᥇⏝䛧䚸⥺ᮦ୧ ➃䛛䜙෭༷䛧䚸ึᮇ ᗘ䛿 㻣㻣㻌 㻷 䛷⾜䛳䛯䚹ᐇ㦂䛷䛿⥺ᮦ୧ ➃䛻㟁ᅽ➃Ꮚ䜢タ⨨䛧䛯䚹ᐇ㦂ᡭ㡰䛿௨ୗ䛾㏻䜚䛷䛒䜛䚹㻌 㻔㻝㻕ึᮇ 㻵㼏㻜䠄㻝㻌㽀㼂㻛㼏㼙 ᇶ‽䠅䜢 ᐃ㻌 㻔㻞㻕㐣㟁ὶ䛾䝢䞊䜽್ 㻵㼜㼑㼍㼗䠄㻲㼕㼓㻚㻝 ཧ↷䠅䜢 㻵㼏 ௨ୖ䛸䛧䛶㏻㟁㻌 㻔㻟㻕㻵㼏 䜢 ᐃ䛧䚸㻵㼏 ຎ䛾᭷↓䜢☜ㄆ㻌 ᅇ䛾ᐇ㦂䛷䛿䚸㻵㼏 ᐃ䛻㼼㻞㻭 ⛬ᗘ䛾ㄗᕪ䛜ྵ䜎䜜䜛 䛯䜑䚸㻞㻌 㻭 ௨ୖ䛾 㻵㼏 పୗ䛜ほ 䛥䜜䜛䜎䛷ὶ㐣㟁ὶ䛾 㻵㼜㼑㼍㼗 䜢ୖ䛢䛺䛜䜙㻔㻞㻕䚸㻔㻟㻕䛾ᡭ㡰䜢⧞䜚㏉䛧䛯䚹⤒ᖺຎ䛾ㄪᰝ䛷 䛿 㻵㼜㼑㼍㼗 䜢ᅛᐃ䛧䛶㻔㻞㻕䚸㻔㻟㻕䛾ᡭ㡰䜢 㻟㻜 ᅇ⧞䜚㏉䛧䛯䚹㻌 㻌 䠐䠊ᐇ㦂⤖ᯝ䛸䜎䛸䜑㻌 㻵㼜㼑㼍㼗 䛸 㻵㼏 䛾㛵ಀ䜢 㻲㼕㼓㻚㻞 䛻䚸㏻㟁ᅇᩘ䛸 㻵㼏 䛾㛵ಀ䜢 㻲㼕㼓㻚㻟 䛻 ♧䛩䚹㻲㼕㼓㻚㻞 䜘䜚 㻵㼜㼑㼍㼗 䛜 㻞㻟㻡㻌㻭 ௨ୖ䛷 㻵㼏 䛾ຎ䛜ほ 䛥䜜䛯䚹 㻲㼕㼓㻚㻟 䜘䜚 㻵㼜㼑㼍㼗㻌㻩㻞㻝㻜㻌㻭 䛷䛭 㻟㻜 ᅇ㏻㟁䛧䛶䜒ຎ䛿ほ 䛥䜜䛺 䛛䛳䛯䚹ᚋ䛿䚸ᶍᨃ䜿䞊䝤䝹䜢⏝䛔䛯ᾐₕ෭༷䛻䜘䜛ㄪᰝ 䜢䛧䛶䛔䛟ணᐃ䛷䛒䜛䚹㻌 Fig.1 Simulation result of current trace in each REBCO 㻌 Fig.2 Experimental result of Ic/Ic0 with AC over-current Fig.3 Experimental result 㻌 ཧ⪃ᩥ⊩㻌 㻝㻚 㼃㻭㻺㻳㻌㼄㼡㼐㼛㼚㼓㻘㻌㼁㻱㻰㻭㻌㻴㼕㼞㼛㼟㼔㼕㻘㻌㻵㻿㻴㻵㼅㻭㻹㻭㻌㻭㼠㼟㼡㼟㼔㼕㻘㻌㼑㼠㻌 㼍㼘䠖㻌 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㻥㻌㻔㻞㻜㻜㻤㻕㻌㼜㻚㻥㻜㻌 ― 137 ― 第83回 2010年度秋季低温工学・超電導学会 1P-p41 送電ケーブル (1) 㕲㐨䛝㟁⥺⏝㉸㟁ᑟ䜿䞊䝤䝹䛾⥺ᮦ≉ᛶホ౯㻌 㻯㼔㼍㼞㼍㼏㼠㼑㼞㼕㼦㼍㼠㼕㼛㼚㻌㼛㼒㻌㼟㼡㼜㼑㼞㼏㼛㼚㼐㼡㼏㼠㼕㼚㼓㻌㼣㼕㼞㼑㻌㼒㼛㼞㻌㻰㻯㻌㻯㼍㼎㼘㼑㻌㼡㼟㼑㼐㻌㼕㼚㻌㼠㼔㼑㻌㻾㼍㼕㼘㼣㼍㼥㻌 㻌 ⚟ᮏ㻌 ♸䠈㕥ᮌ㻌 ㈼ḟ䠈▼ཎ㻌 ⠜䠈䝭䝸䜰䝷㻌 䝮䝷䝸䝎䠈ᐩ⏣㻌 ඃ䠄㕲㐨⥲◊䠅㻌 㻲㼁㻷㼁㻹㻻㼀㻻㻌 㼅㼡㼟㼡㼗㼑䠈㻿㼁㼆㼁㻷㻵㻌㻷㼑㼚㼖㼕䠈㻵㻿㻴㻵㻴㻭㻾㻭㻌㻭㼠㼟㼡㼟㼔㼕䠈㻹㼕㼞㼥㼍㼘㼍㻌㻹㼡㼞㼍㼘㼕㼐㼔㼍㼞㻌 䠈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㼒㼡㼗㼡㻬㼞㼠㼞㼕㻚㼛㼞㻚㼖㼜㻌 㻌 㻌 㻝䠊䛿䛨䜑䛻㻌 㼀㼍㼎㼘㼑㻚㻝㻌㻮㼡㼞㼚㼛㼡㼠㻌㼏㼡㼞㼞㼑㼚㼠㻌㼢㼍㼘㼡㼑㻌㻔㻜㻚㻝㼟㼑㼏㻌㼜㼡㼘㼟㼑㻕㻌 ୍⯡ⓗ䛺ᅾ᮶⥺䛾┤ὶ㟁༊㛫䛾㟁ᅽ䛿 㻝㻡㻜㻜㼂 䛷䛒䜚䚸 Burnout ⌧≧䛾䛝㟁䝅䝇䝔䝮䛷䛿䚸ኚ㟁ᡤ㛫㝸䛜 㻞䡚㻟㼗㼙 ⛬ᗘ䜢㉸䛘 Sample No. Ic[A] current value [A] 䜛䛸㏦㟁䝻䝇䛜㢧ᅾ䛩䜛䚹୍᪉䚸㉸㟁ᑟᮦᩱ䛿┤ὶ䛷㧗䛔 Type H-01 181 626 ᐃ᱁㟁ὶ್䛜ᚓ䜙䜜䜛䛯䜑䚸㕲㐨⏝䛾㏦㟁䜿䞊䝤䝹䛻㐺⏝ Type H-02 174 603 䛧䛯ሙྜ䚸㟁ᅽ㝆ୗ䜢㜵䛞䚸ኚ㟁ᡤᩘ䛾๐ῶ䛜ᮇᚅ䛷䛝䜛䚹㻌 Type HT(SS20)-01 190 661 Type HT(SS20)-02 190 661 㕲㐨⥲◊䛷䛿䚸┤ὶ㟁Ẽ㕲㐨䛾䛝㟁䝅䝇䝔䝮䛾㏦㟁ᦆኻ Type HT(CA50)-01 194 966 పῶ䜢┠ⓗ䛸䛧䛶䚸㉸㟁ᑟ䜿䞊䝤䝹䜢┤ὶ䛝㟁⥺䛻㐺⏝䛩䜛 Type HT(CA50)-02 196 977 㕲㐨⏝㉸㟁ᑟ䛝㟁䜿䞊䝤䝹䛾㛤Ⓨ䜢⾜䛳䛶䛔䜛 㻝㻕㻞㻕䚹㻌 㻌 㻌 㻌 㻌 㻌 㻞䠊タィ㻌 㻌 㻌 䛝㟁⏝ኚ㟁ᡤ䛻䛿▷⤡㟁ὶ䛜ὶ䜜䛯ሙྜ䛾ಖㆤ䛸䛧䛶䚸┤ 㻌 ὶ㧗㏿ᗘ㐽᩿ჾ䛜᥋⥆䛥䜜䛶䛔䜛䚹┤ὶ㐽᩿䛾㝈ᗘ䛿㐽᩿ 㻌 㻢 ჾ䛾ᛶ⬟ୖ䚸᥎ᐃ▷⤡㟁ὶ 㻡㻜㼗㻭䚸✺㐍⋡ 㻟㽢㻝㻜 㻭㻛㼟㼑㼏䚸ᐇ 㻌 㐽᩿㟁ὶ 㻞㻡㼗㻭 䛸ᐃ䜑䜙䜜䛶䛚䜚䚸䛣䜜䜙䛾㟁ὶ䛜㉸㟁ᑟ䜿䞊 㻌 䝤䝹䛻ὶ䜜䛶䜒ᦆയ䛜䛒䛳䛶䛿䛺䜙䛺䛔䚹䜘䛳䛶ᅇ䛿䚸▷ 㻌 ⤡㟁ὶᑐ⟇䛾䛯䜑䛻䚸⌧ᅾᕷ㈍䛥䜜䛶䛔䜛㉸㟁ᑟ⥺ᮦ䛻䛴 㻌 䛔䛶䚸▷⤡㟁ὶ䜢ᶍᨃ䛧䛯䝟䝹䝇㟁ὶ䜢༳ຍ䛧䚸≉ᛶኚ䛻 㻌 䛴䛔䛶ホ౯䛧䛯䚹㻌 1ǍV/cm 㻌 㻌 㻌 㻌 㻌 㻟䠊ヨ㦂᪉ἲ㻌 㻌 ヨᩱ⥺ᮦ䛿䚸⌧ᅾᕷ㈍䛥䜜䛶䛔䜛 㻝㻤㻜㻭 ⣭ 㻮㼕 ⣔⥺ᮦ㻔㼀㼥㼜㼑㻌 㻌 㻴䚸㼀㼥㼜㼑㻌㻴㼀㻔㻯㻭㻡㻜䠅䚸㼀㼥㼜㼑㻌㻴㼀㻔㻿㻿㻞㻜㻕㻕䛸䛧䛯䚹ヨ㦂᪉ἲ䛿䚸▷ 㻌 ⤡㟁ὶ䜢ᶍᨃ䛧䛯 㻝㻜㻜㼙㼟㼑㼏 䛾䝟䝹䝇ᖜ䜢䜒䛴䝟䝹䝇㟁ὶ䜢㉸ 㻌 㟁ᑟ⥺ᮦ䛻༳ຍ䛧䚸䛭䛾๓ᚋ䛷 㻵㻙㼂 ≉ᛶ䜢ẚ㍑䛧䚸⮫⏺㟁ὶ 㻲㼕㼓㻚㻝㻌㻯㼡㼞㼞㼑㼚㼠㻙㼢㼛㼘㼠㼍㼓㼑㻌㼏㼔㼍㼞㼍㼏㼠㼑㼞㼕㼟㼠㼕㼏㼟㻌 㻌 㻌 ≉ᛶ䛾ຎ䛜ぢ䜙䜜䜛䜎䛷⧞䜚㏉䛧䛯䚹㻌 㻔㻝㻜㻜㼙㼟㼑㼏㻌㼜㼡㼘㼟㼑㻘㻌㼀㼥㼜㼑㻌㻴㻕㻌 㻌 㻌 㻌 㻠䠊ヨ㦂⤖ᯝ㻌 㻌 䛿䛨䜑䛻䚸㉸㟁ᑟ⥺ᮦ䛜◚᩿䛩䜛㟁ὶ್䜢ᢕᥱ䛩䜛䛯䜑 㻌 䛻䚸䝟䝹䝇㟁ὶ್䜢 㻵㼏 䛾 㻜㻚㻡 ಸ䛪䛴ୖ䛢䛶 ᐃ䜢⾜䛳䛯䚹⤖ 㻌 ᯝ䜢⾲ 㻝 䛻♧䛩䚹㼀㼥㼜㼑㻌㻴 䛸 㼀㼥㼜㼑㻌㻴㼀㻔㻿㻿㻞㻜㻕䛻䛚䛔䛶䛿䚸⣙ 㻟㻚㻡 㻌 ಸ䛾㟁ὶ್䛷◚᩿䛧䛯䛜䚸㼀㼥㼜㼑㻌㻴㼀㻔㻯㻭㻡㻜㻕䛻䛚䛔䛶䛿⣙ 㻡 ಸ 㻌 䛾㟁ὶ್䛷◚᩿䜢☜ㄆ䛧䛯䚹㻌 㻌 ḟ䛻䚸◚᩿┤๓䛷䛾ຎ䜢ホ౯䛩䜛䛯䜑䛻䚸◚᩿䛩䜛┤ 㻌 ๓䛾㟁ὶ್䛛䜙ẁ㝵ⓗ䛻䝟䝹䝇㟁ὶ䜢ୖ䛢䛶䛔䛳䛯䚹㼀㼥㼜㼑㻌 㻌 㻴 䛾 㻵㻙㼂 ≉ᛶ䛾ኚ䜢ᅗ 㻝 䛻䚸䝟䝹䝇㟁ὶ್䛸 㻵㼏 䜢ᅗ 㻞 䛻♧ 㻌 䛩䚹㼀㼥㼜㼑㻌㻴 䛚䜘䜃 㼀㼥㼜㼑㻌㻴㼀㻔㻿㻿㻞㻜㻕䛻䛚䛔䛶䛿䚸㻵㼏 䛾 㻟 ಸ௨ୖ 㻌 䛾䝟䝹䝇㟁ὶ䛷ຎ䛜ぢ䜙䜜䛯䚹䜎䛯䚸㼀㼥㼜㼑㻌 㻴㼀㻔㻯㻭㻡㻜㻕䛻䛴 㻌 䛔䛶䛿䚸㻵㼏 ≉ᛶ䛾ຎ䛿䜏䜙䜜䛺䛛䛳䛯䜒䛾䛾䚸䝷䝭䝛䞊䝖ᮦ 㻌 䛾㞳䛜䜏䜙䜜䛯䚹㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻲㼕㼓㻚㻞㻌㻯㼔㼍㼚㼓㼑㻌㼛㼒㻌㻵㼏㻌㼎㼥㻌㼜㼡㼘㼟㼑㻌㼏㼡㼞㼞㼑㼚㼠㻌 ㅰ㎡㻌 㻌 㻌 㻌 ᮏ◊✲䛾୍㒊䛿䚸⛉Ꮫᢏ⾡⯆ᶵᵓ㻔㻶㻿㼀㻕䛾ᡓ␎ⓗ䜲䝜 ཧ⪃ᩥ⊩㻌 䝧䞊䝅䝵䞁ฟ᥎㐍ᴗ䠄㻿㻙䜲䝜䝧䠅䛻䛚䛡䜛◊✲ㄢ㢟䛂ḟୡ 㻝㻚㻌 㻹㻚㻌 㼀㼛㼙㼕㼠㼍㻘㻌 㼅㻚㻌 㻲㼡㼗㼡㼙㼛㼠㼛㻘㻌 㻷㻚㻌 㻿㼡㼦㼡㼗㼕㻦㻌 㻭㼎㼟㼠㼞㼍㼏㼠㼟㻌 㼛㼒㻌 㻯㻿㻶㻌 ௦㕲㐨䝅䝇䝔䝮䜢䜛㉸ఏᑟᢏ⾡䜲䝜䝧䞊䝅䝵䞁䛃䛾ᨭ䜢ཷ 㻯㼛㼚㼒㼑㼞㼑㼚㼏㼑㻘㻌㼂㼛㼘㻤㻝㻌㻔㻞㻜㻜㻥㻕㻌㼜㻚㻥㻡㻌 䛡䛶⾜䛳䛯䚹㻌 㻞㻚㻌 㻹㻚㻌 㼀㼛㼙㼕㼠㼍㻘㻌 㼅㻚㻌 㻲㼡㼗㼡㼙㼛㼠㼛㻘㻌 㻷㻚㻌 㻿㼡㼦㼡㼗㼕㻘㻌 㻭㻚㻌 㻵㼟㼔㼕㼔㼍㼞㼍㻘㻌 㻹㻚㻌 㻌 㻹㼕㼞㼥㼍㼘㼍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㻤㻞㻌㻔㻞㻜㻜㻥㻕㻌㼜㻚㻞㻝 㻌 㻌 ― 138 ― 第83回 2010年度秋季低温工学・超電導学会 1P-p43 送電ケーブル (1) 㻞㻜㻜㻌㼙 ㉸ఏᑟ┤ὶ㏦㟁䜿䞊䝤䝹ᐇ㦂⨨䛾㏻㟁ヨ㦂㻌 㻯㼡㼞㼞㼑㼚㼠㻙㼒㼑㼑㼐㼕㼚㼓㻌㼠㼑㼟㼠㻌㼛㼒㻌㼍㻌㻞㻜㻜㻌㼙㻌㻰㻯㻌㼟㼡㼜㼑㼞㼏㼛㼚㼐㼡㼏㼠㼕㼚㼓㻌㼜㼛㼣㼑㼞㻌㼏㼍㼎㼘㼑㻌㼠㼑㼟㼠㻌㼒㼍㼏㼕㼘㼕㼠㼥㻌 㻌 ㎶㻌 ㄔ䠈Ώ㑓㻌 ⿱ᩥ䠈Ἑཎ㻌 ᩄ⏨䠈Ꮮ㻌 ᘓ䠈㻵㼂㻭㻺㻻㼂㻌㼅㼡㼞㼥䠈ⰾᮧ㻌 ᖾ䠈㻌 ⚟⏣㻌 ┿䠈ᮡ㔝㻌 ៅ䠈ᒣ⏣㻌 ⚽㈗䠈ᒣཱྀ㻌 సኴ㑻䠄୰㒊䠅㻌 㻴㻭㻹㻭㻮㻱㻌㻹㼍㼗㼛㼠㼛㻘㻌㼃㻭㼀㻭㻺㻭㻮㻱㻌㻴㼕㼞㼛㼒㼡㼙㼕㻘㻌㻷㻭㼃㻭㻴㻭㻾㻭㻌㼀㼛㼟㼔㼕㼛㻘㻌㻿㼁㻺㻌㻶㼕㼍㼚㻘㻌㻵㼂㻭㻺㻻㼂㻌㼅㼡㼞㼥㻘㻌㼅㻻㻿㻴㻵㻹㼁㻾㻭㻌㻷㼛㼡㼖㼕㻘㻌 㻌 㻲㼁㻷㼁㻰㻭㻌㻿㼔㼕㼚㼖㼕㻘㻌㻿㼁㻳㻵㻺㻻㻌㻹㼍㼗㼛㼠㼛㻘㻌㼅㻭㻹㻭㻰㻭㻌㻴㼕㼐㼑㼗㼕㻘㻌㼅㻭㻹㻭㻳㼁㻯㻴㻵㻌㻿㼍㼠㼍㼞㼛㼡㻌㻔㻯㼔㼡㼎㼡㻌㼁㼚㼕㼢㻚㻕㻌 㻱㻙㼙㼍㼕㼘㻦㻌㼔㼍㼙㼍㼎㼑㻬㼕㼟㼏㻚㼏㼔㼡㼎㼡㻚㼍㼏㻚㼖㼜㻌 㻌 㻞㻚㻌㻹㻚㻌㻴㼍㼙㼍㼎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㻤㻞㻌 㻝䠊䛿䛨䜑䛻㻌 㻔㻞㻜㻝㻜㻕㻌㼜㻚㻤㻥㻌 ୰㒊Ꮫ䛷䛿 㻞㻜㻌 㼙 ⣭㉸ఏᑟ┤ὶ㏦㟁䜿䞊䝤䝹䛷䛾ᐇ 㻟㻚㻌㼀㻚㻌㻷㼍㼣㼍㼔㼍㼞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㼂㼛㼘㻚㻌㻤㻟㻌 㦂⤖ᯝ㼇㻝㼉䛻ᇶ䛵䛔䛶䚸㻞㻜㻜㻌 㼙 䛾㉸ఏᑟ┤ὶ㏦㟁䜿䞊䝤䝹䛾 㻔㻞㻜㻝㻜㻕㻌㻝㻯㻙㼍㻜㻥㻌㻔㼠㼔㼕㼟㻌㼏㼛㼚㼒㼑㼞㼑㼚㼏㼑㻕㻌 ᐇ㦂⨨䜢〇స䛧䚸㻞㻜㻝㻜 ᖺ 㻝 ᭶䜘䜚ᐇ㦂䜢㛤ጞ䛧䛯㼇㻞㼉䚹䛣䜜 㻌 䜎䛷䚸ྠᖺ 㻟 ᭶䜎䛷䛾୍ᅇ┠䛾෭༷ヨ㦂䛻ᘬ䛝⥆䛝䚸㻤 ᭶䜘䜚 㻌 ᅇ┠䛾෭༷ヨ㦂䜢⾜䛺䛳䛯䚹䛣䛣䛷䛿䚸㟁ὶ䛷䛾┤ὶ㏻ 㟁ヨ㦂䛾⤖ᯝ䚸䛚䜘䜃┤ὶ㏻㟁䛻ὶ㟁ὶ䜢㔜␚䛧䛶ᚓ 㼀㼍㼎㼘㼑㻌㻝㻌㻿㼜㼑㼏㼕㼒㼕㼏㼍㼠㼕㼛㼚㻌㼛㼒㻌㻞㻜㻜㻌㼙㻌㻰㻯㻌㼟㼡㼜㼑㼞㼏㼛㼚㼐㼡㼏㼠㼕㼚㼓㻌 䜙䜜䛯䜿䞊䝤䝹䛾䜲䞁䝎䜽䝍䞁䝇 ᐃ䛾⤖ᯝ䛻䛴䛔䛶ሗ࿌䛩 㼜㼛㼣㼑㼞㻌㼏㼍㼎㼘㼑㻌㼠㼑㼟㼠㻌㼟㼠㼍㼚㼐㻌㼕㼚㻌㻯㼔㼡㼎㼡㻌㼁㼚㼕㼢㼑㼞㼟㼕㼠㼥㻚㻌 䜛䚹㻌 㻯㼡㼞㼞㼑㼚㼠㻌 㻰㻯㻌㻞㻌㼗㻭㻌㼍㼠㻌㻣㻤㻌㻷㻌 㻌 㻞䠊㏻㟁ヨ㦂㻌 㼂㼛㼘㼠㼍㼓㼑㻌 㻰㻯㻌 㼼㻝㻜㻌㼗㼂㻌 㼀㼍㼎㼘㼑㻌㻝 䛻 㻞㻜㻜㼙 ㉸ఏᑟ┤ὶ㏦㟁䜿䞊䝤䝹ᐇ㦂⨨䛾 ᵝ䜢♧䛩䚹ᮏᐇ㦂⨨䛾≉ᚩ䛾୍䛴䛻㒊䛷 㻟㻥 ᮏ⏝䛧䛶 㻯㼍㼎㼘㼑㻌㼟㼠㼞㼡㼏㼠㼡㼞㼑 㻯㼛㼍㼤㼕㼍㼘㻘㻌㼎㼕㼜㼛㼘㼍㼞㻌㼏㼡㼞㼞㼑㼚㼠㻌㼒㼑㼑㼐㻌 䛔䜛 㻰㻵㻙㻮㻿㻯㻯㻻䕿㻾⥺ᮦ䠄ఫ㟁ᕤ〇䠅㻝 ᮏ䛪䛴䛻㟁ὶ䝸䞊䝗䜢 㻟㻥㻌㻰㻵㻙㻮㻿㻯㻯㻻䕿㻔㻿㻱㻵㻕㻌㻴㼀㻿㻌㼠㼍㼜㼑㼟 ᥋⥆䛧䛶䛔䜛Ⅼ䛜䛒䜛䚹䛭䛧䛶䚸䛣䛾㟁ὶ䝸䞊䝗䛛䜙䛾⇕ධ 㻿㻯㻌㼠㼍㼜㼑㻌 㻔㻞㻟㻌㼠㼍㼜㼑㼟㻌㼕㼚㻌㼕㼚㼟㼕㼐㼑㻌㻿㻯㻌㼘㼍㼥㼑㼞㻘㻌 䜢పῶ䛥䛫䜛䛯䜑䛻䚸䝨䝹䝏䜵㟁ὶ䝸䞊䝗㻔㻼㻯㻸㻕䜢⏝䛧䛶䛔 㻝㻢㻌㼠㼍㼜㼑㼟㻌㼕㼚㻌㼛㼡㼠㼟㼕㼐㼑㻌㻿㻯㻌㼘㼍㼥㼑㼞㻕㻌 䜛䛜䚸ẚ㍑䛾䛯䜑䛻୍㒊䛻㖡䛾䜏䛾㟁ὶ䝸䞊䝗䜢⏝䛔䛶䛔䜛 㻣㻞㻌㻼㼑㼘㼠㼕㼑㼞㻌㼏㼡㼞㼞㼑㼚㼠㻌㼘㼑㼍㼐㼟㻌 㼇㻟㼉䚹䛣䛾䛯䜑䚸㖡㟁ὶ䝸䞊䝗䛾㒊ศ䛿 㻼㻯㻸 䜘䜚䜒ᢠ䛜ప䛟䚸 㻯㼡㼞㼞㼑㼚㼠㻌㼘㼑㼍㼐㼟㻌 㼍㼚㼐㻌㻢㻌㼏㼛㼜㼜㼑㼞㻌㼘㼑㼍㼐㼟㻌 䜘䜚㟁ὶ䛜ὶ䜜䜛೫ὶ≧ែ䛻䛺䜛䚹䛭䛾䛯䜑䚸୍ᗘ┠䛾㏻㟁 㻌 ヨ㦂䛷䛿㖡㟁ὶ䝸䞊䝗䛻᥋⥆䛥䜜䛯୍ᮏ䛾⥺ᮦ䛾㉸ఏᑟ≧ 㻌 ែ䛜◚䜜䚸䛣䛾䛣䛸䛻㉳ᅉ䛩䜛䜽䜶䞁䝏䛜Ⓨ⏕䛧䛯䚹䛭䛣䛷䚸 S1-1 S1-10 20 2000 ྛ㟁ὶ䝸䞊䝗䛾㓄⥺䛻ᩘ 㼙:䛾እ㒊ᢠ䜢᥋⥆䛩䜛䛣䛸䛷㟁 S1-2 S1-11 Total current ὶ䝞䝷䞁䝇䜢ྲྀ䛳䛯ᚋ䛻䚸㏻㟁ヨ㦂䜢⾜䛺䛳䛯䚹䛣䛾䛸䛝䚸䜽䜶 S1-3 S1-12 15 S1-5 S1-13 䞁䝏䛿ᢚ䛘䜙䜜䚸䜿䞊䝤䝹㓄⟶ྛ㒊䛷 ᐃ䛧䛯ᾮయ❅⣲ 1500 S1-6 S1-14 S1-7 S1-15 ᗘ䛜 㻣㻣㻚㻞䡚㻣㻤㻚㻥㻌 㻷 䛾䛸䛝䛻䚸㻝㻚㻡㻌 㼗㻭 䜎䛷䚸㉸ఏᑟ≧ែ䛾䜎䜎 10 S1-9 S1-16 ㏻㟁䛷䛝䛯䚹㻌 1000 㻌 5 㻟䠊䜿䞊䝤䝹䞉䜲䞁䝎䜽䝍䞁䝇 ᐃ㻌 500 0 ┤ὶ㉸ఏᑟ䜿䞊䝤䝹䛾Ⅼ䛾୍䛴䛻䚸☢Ẽ䜶䝛䝹䜼䞊 䛻䜘䜛㟁ຊ㈓ⶶຠᯝ䛜䛒䜛䚹≉䛻ᮏᐇ㦂⨨䛾ሙྜ䛿䚸┿✵ -5 0 ᩿⇕㔜㓄⟶䛾እ⟶䛻☢ᛶయ䛷䛒䜛㗰⟶䠄ཌ䛥 㻢㻌㼙㼙䠅䜢⏝ 0 50 100 150 200 250 300 Time[sec] 䛧䛶䛔䜛䛯䜑䚸䛣䛾ຠᯝ䛜䛝䛔䛣䛸䛜ᮇᚅ䛷䛝䜛䚹䛭䛣䛷䚸┤ 㻌 㻲㼕㼓㻚㻌 㻝㻌 㻯㼡㼞㼞㼑㼚㼠㻌 㼒㼑㼑㼐㻌 㼠㼑㼟㼠㻌 㼡㼜㻌 㼠㼛㻌 㻝㻡㻜㻜㻌 㻭㻚㻌 㻴㼑㼞㼑㻘㻌 㻸㻺㻞㻌 ὶ㏻㟁䛻ὶ㟁ὶ䜢㔜␚䛥䛫䛯ሙྜ䛾䜿䞊䝤䝹䜲䞁䝎䜽䝍 㼠㼑㼙㼜㼑㼞㼍㼠㼡㼞㼑㼟㻌㼕㼚㻌㼠㼔㼑㻌㼏㼞㼥㼛㼜㼕㼜㼑㻌㼞㼍㼚㼓㼑㼐㻌㼒㼞㼛㼙㻌㻣㻣㻚㻞㻌㼠㼛㻌㻣㻤㻚㻥㻌㻷㻚㻌 䞁䝇䜢 ᐃ䛧䛯䚹ᵝ㏻䜚䛻ྠ㍈ᒙ䛾⥺ᮦ䛻ྥ䛝䛾␗䛺䜛 㻌 㟁ὶ䜢ὶ䛩䛂୧ᴟᛶ㻔㼎㼕㼜㼛㼘㼍㼞㻕䛃䛾㏻㟁䛷䛿䜲䞁䝎䜽䝍䞁䝇䛿ᑠ 1 䛥䛟䛺䜛䛯䜑䚸⥺ᮦ䛾୍ᒙ䛾䜏䛻㏻㟁䛩䜛䛂༢ᴟᛶ 㻔㼙㼛㼚㼛㼜㼛㼘㼍㼞㻕䛃䛾㏻㟁䜒⾜䛺䛳䛯䚹䛭䛾⤖ᯝ䜢 㻲㼕㼓㻚㻌 㻟 䛻♧䛩䚹 㻮㼕㼜㼛㼘㼍㼞 䛾ሙྜ䛿࿘Ἴᩘ䛻䜘䜙䛪 㻜㻚㻜㻝㻢㻌 㼙㻴 ⛬ᗘ䛷䛒䜛䛜䚸 Monopolar 㼙㼛㼚㼛㼜㼛㼘㼍㼞 䛾ሙྜ䛿 㻝㻜㻴㼦 ௨ୗ䛾࿘Ἴᩘ䛻ᑐ䛧䛶 㻜㻚㻟㻣㻌㼙㻴 ⛬ ᗘ䛻䛺䛳䛯䚹ᚑ䛳䛶䚸⥺ᮦ୍ᒙ䛾䜏䛻㏻㟁䛧䛯ሙྜ䚸䛣䛾 㻞㻜㻜㻌 0.1 㼙 ㉸ఏᑟ䜿䞊䝤䝹䛻䛘䜙䜜䜛☢Ẽ䜶䝛䝹䜼䞊㻽 䛿㻌 㻌 㻌 㻽㻌㻩㻌 㻸㻵㻞㻛㻞㻌㻩㻌㻞㻤㻚㻤㻌㼗㻶㻌 㻌 㻌 Bipolar 䛸䛺䛳䛯䚹㻽 䛿㟁ὶ䛾䛻ẚ䛩䜛䛜䚸㟁ὶ䛷䛿㗰⟶䛾 0.01 㣬☢᮰䛻㐩䛩䜛ྍ⬟ᛶ䛜䛒䜛䛯䜑䚸ᚋ䚸䛥䜙䛻㟁ὶ䛷 0.1 1 10 100 䛾䜲䞁䝎䜽䝍䞁䝇 ᐃ䜢⾜䛺䛖ணᐃ䛷䛒䜛䚹㻌 Frequency [Hz] 㻌 㻌 㻲㼕㼓㻚㻌㻞㻌㻲㼞㼑㼝㼡㼑㼚㼏㼥㻌㼐㼑㼜㼑㼚㼐㼑㼚㼏㼑㻌㼛㼒㻌㻞㻜㻜㻌㼙㻌㼟㼡㼜㼑㼞㼏㼛㼚㼐㼡㼏㼠㼕㼚㼓㻌㻰㻯㻌 ཧ⪃ᩥ⊩㻌 㼏㼍㼎㼘㼑㻌㼡㼚㼐㼑㼞㻌㻰㻯㻌㻠㻜㻜㻌㻭㻌㼏㼡㼞㼞㼑㼚㼠㻙㼒㼑㼑㼐㻚㻌 㻝㻚㻌 㻹㻚㻌㻴㼍㼙㼍㼎㼑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㻌㻝㻥㻌 㻔㻞㻜㻜㻥㻕㻌㼜㻚㻝㻣㻣㻤㻌 Cable Inductance L [mH] Total current [A] HTS voltage [mV] 㻾 ― 139 ― 第83回 2010年度秋季低温工学・超電導学会 1P-p44 送電ケーブル (1) ୕ゅᙧ䜎䛯䛿ከゅᙧ᩿㠃䛾ᑟయ䛾䜲䞁䝎䜽䝍䞁䝇㻌 Inductance for conductors with triangular or polygonal cross-section ୰㻌 㻔ᩥ⛉┬㻘⌮◊㻕㻌 TOMINAKA Toshiharu (MEXT, RIKEN) E-mail: [email protected] 㻝㻚㻌䛿䛨䜑䛻㻌 㻌 ప࿘Ἴ䛾㟁ὶ䛻䛴䛔䛶䠈ᖖఏᑟ୪ิᅇ㊰䛾㟁ὶศᕸ䛿 ᢠ䛷Ỵ䜎䜛䛜䠈ᢠ䝊䝻䛾㉸ఏᑟ୪ิᅇ㊰䛾㟁ὶศᕸ䛿䠈ᅇ ㊰䛾䜲䞁䝎䜽䝍䞁䝇䛷Ỵ䜎䜛䛸⪃䛘䜙䜜䜛䠊䛭䜜䛷䠈㉸ఏᑟ䛾ᑟ య䜢せ⣲䛻ศ䛧䛶ྛせ⣲䛾⮬ᕫ䜲䞁䝎䜽䝍䞁䝇䠈せ⣲㛫䛾┦ 䜲䞁䝎䜽䝍䞁䝇䛛䜙ᑟయෆ䛾㟁ὶศᕸ䜢ィ⟬䛷䛝䜛䠊䛧䛯䛜 䛳䛶䠈䜲䞁䝎䜽䝍䞁䝇ィ⟬䛿ྂ䛟䛥䛔䛸ᛮ䜟䜜䜛䛛䜒▱䜜䛺䛔䛜䠈 ㉸ఏᑟᕤᏛ䛾ศ㔝䛷䛿䠈㔜せ䛷䛒䜛䠊௵ព᩿㠃䛾 㻞 ḟඖᑟయ 䛾⮬ᕫ䠈┦䜲䞁䝎䜽䝍䞁䝇ィ⟬䛻䛚䛔䛶䠈㻲㼕㼓㻚㻝 䛻♧䛩䜘䛖䛺 ୕ゅᙧ䜎䛯䛿ከゅᙧ᩿㠃䛾㛗䛔ᑟయ䛻䛴䛔䛶䛾䜲䞁䝎䜽䝍䞁 䝇䛾බᘧ䠄ཝᐦゎ䠅䛿ᛂ⏝ୖ᭷⏝䛷䛒䜛㼇㻝㻘㻞㼉䠊᪤䛻䠈⮬ᕫཬ䜃 ┦䜲䞁䝎䜽䝍䞁䝇䜎䛯䛿䛭䛾ᗄఱᏛⓗᖹᆒ㊥㞳䛻䛴䛔䛶」 ⣲ᙧᘧ䛾බᘧ䜢ሗ࿌䛧䛯㼇㻝㼉䠊䛣䛾බᘧ䜢⏝䛔䛯ᩘ್ィ⟬䛻ၥ 㢟䛜䛒䜛䛣䛸䛜䜟䛛䜚䠈⌧ᅾ䠈ィ⟬䛾ᩚྜᛶ䛾᳨ウ䜢㐍䜑䛶䛔 䜛䠊㻌 㻞㻚㻌ከゅᙧ䛷䛾ᗄఱᏛⓗᖹᆒ㊥㞳䛾ゎᯒⓗ䛺⾲ᘧ㻌 㻌 ୕ゅᙧ䜎䛯䛿ከゅᙧ᩿㠃䛾㛗䛥 㼘㻌 㻔㻪㻪㻾㼜㼝㻕䛾㛗䛔ᑟయ㛫䛾┦ 䜲䞁䝎䜽䝍䞁䝇 㻸㼜㼝 䛿ḟᘧ䛾䜘䛖䛻⾲䛫䜛䠊㻌㻌 ] ª z j 1 zj * ] k 1 ] k * ½ªªz * ] *z ] 3 º Re «® ln z ] » ¾«« 6 ¼] «¯ zj 1 z j ]k 1 ] k ¿¬¬ ¬ z j 1 z j * ] k 1 ] k *½ ªªz ] º ® ln z ] » ¾ «« ] k 1 ] k ¿ ¬¬ 24 ¼] ¯ z j 1 z j 2 ] ] k1 4 ]k ] k1 ]k z z j 1 º » ¼z zj z z j 1 º » ¼z zj º » » ¼(5) 㻟㻚㻌ᗄఱᏛⓗᖹᆒ㊥㞳䛾」⣲ᙧᘧ䛾බᘧ䛾ホ౯㻌 㻌 㻲㼕㼓㻚㻞 䛻♧䛩䜘䛖䛺ṇ᪉ᙧ䠈㛗᪉ᙧ䠈⎔䛾ᚑ᮶䛛䜙▱䜙䜜䛯 ⮬ᕫ䜲䞁䝎䜽䝍䞁䝇䛸䠈䛭䜜䜙䜢ศ䛧䛯୕ゅᙧ䜎䛯䛿ᅄゅᙧ せ⣲䛾⮬ᕫ䠈┦䜲䞁䝎䜽䝍䞁䝇䛛䜙ồ䜑䛯್䛸ẚ㍑䛧䛶䠈බ ᘧ䛾ᩚྜᛶ䜢ㄪ䜉䛯䠊㻲㼕㼓㻚㻞㻔㼍㻕䛻䛚䛔䛶䛿䠈ศ↓䛧䛷䛾⌮ㄽ ್䛸ศ䛧䛯せ⣲䛾㞟ྜᑟయ䛾ᩘ್ィ⟬䛾್䛿୍⮴䛧䠈䜎䛯䠈 㻲㼕㼓㻚㻞㻔㼏㻕䛾ෆ༙ᚄ 㻥㼙㼙㻘እ༙ᚄ 㻝㻝㼙㼙 䛾⎔䛻䛚䛔䛶䠈ᗄఱᏛ ⓗ ᖹ ᆒ ㊥ 㞳 㻾㼜㼜㻩㻝㻜㻚㻟㻡㻢㼙㼙 䠄 ศ ↓ 䛧 䛷 䛾 ⌮ ㄽ ್ 䠅 㻾㼜㼜㻩㻝㻜㻚㻟㻠㻥㼙㼙䠄㻣㻞 ศ䛷䛾ᩘ್ィ⟬䛾್䠅䛸䛺䜛䛣䛸䜢☜ㄆ䛧 䛯䠊䛯䛰䛧䠈⌧≧䠈௵ព䛾୕ゅᙧ䜎䛯䛿ከゅᙧ᩿㠃䛾㛗䛔ᑟ య䛛䜙ᵓᡂ䛥䜜䛯㞟ྜᑟయ䛻䛴䛔䛶䛾ィ⟬䛾ᩚྜᛶ䛻䛴䛔䛶 ၥ㢟䛜ṧ䛳䛶䛔䜛䠊㻌 § 2l · P 0 l P0 l ¨ Pl 㻌 㼘㼚㻾㼜㼝 䛻䛴䛔䛶䠈㻭㻔]㼗㻘㻌]㼗㻗㻝㻘㻌㼦㼖㻌㻘㼦㼖㻗㻝㻕䜎䛯䛿 㻮㻔]㼗㻘㻌]㼗㻗㻝㻘㻌㼦㼖㻌㻘㼦㼖㻗㻝㻕䛾 ln 2l 1 0 ln R pq L pq ln 1¸ 2S © Rpq 2S ¹ 2S ᘧ䛿ඹ䛻ᩘᏛⓗ䛻䛿ྠ➼䛺䛿䛪䛷䛒䜛䛜䠈㻭 䜢⏝䛔䛯㻔㻞㻕ᘧ䛻 㻌㻌㻌㻌㻌㻌㻌㻌㻌㻌㻌㻌㻌(1)㻌 ẚ䜉䠈㻮 䜢⏝䛔䛯㻔㻠㻕ᘧ䛾᪉䛜⡆༢䛷䠈㻹㼍㼠㼔㼑㼙㼍㼠㼕㼏㼍 䛷䛾ᩘ್ 䛣䛣䛷䠈㻾㼜㼝 䛿ᗄఱᏛⓗᖹᆒ㊥㞳䛷䠈㻲㼕㼓㻚㻝 䛻♧䛩䜘䛖䛺 㻺 ゅᙧ䠈 㻹 ゅ ᙧ 䛾 ゅ 䛾 」 ⣲ ᖹ 㠃 䛾 ᗙ ᶆ 䜢 䠈 ]㼗㻌 㻔㼗㻩㻝㻘㻞㻘㻘㻺㻕 䠈 㼦㼖㻌 ィ⟬䛾ၥ㢟䛸ᛮ䜟䜜䜛䛣䛸䜒ᑡ䛺䛔䠊」⣲ᙧᘧ䛾ᘧ䛜」㞧䛺䛣 䛸䛺䛹䛻䜘䜚䠈ၥ㢟䛾ゎ᫂䛻䛿⮳䛳䛶䛔䛺䛔䠊㻌 㻔㼖㻩㻝㻘㻞㻘㻘㻹㻕䛷⾲䛩䛸䠈ḟ䛾䜘䛖䛻ồ䜑䜙䜜䜛䠊㻌 M N 㻠㻚㻌䜎䛸䜑㻌 1 1 25 ln Rpq A(] k ,] k 1 , zj , z j1 ) ¦ ¦ ỗ⏝ᛶ䛾㧗䛔୕ゅᙧ䜎䛯䛿ከゅᙧ᩿㠃䛾㛗䛔ᑟయ䛻䛴䛔 8 Sp Sq j 1 k 1 12 㻌㻌㻌㻌㻌㻌㻌㻌㻌㻌㻌㻌㻌㻌㻌㻌㻌㻌(2)㻌 䛶䛾䜲䞁䝎䜽䝍䞁䝇䛾බᘧ䛿䠈㉸ఏᑟᕤᏛ䛾ศ㔝䛺䛹䛷᭷⏝䛷䠈 䛣䛣䛷䠈㻿㼜䠈㻿㼝 䛿ྛᑟయ䛾᩿㠃✚䜢⾲䛩䠊㻭㻔]㼗㻘]㼗㻗㻝㻘㼦㼖㻘㼦㼖㻗㻝㻕㻌 䛿ḟ ᚋ䠈ၥ㢟䛾ゎ᫂䠈䛭䛾ᚋ䛾ά⏝䜢ᮇᚅ䛧䛯䛔䠊 y 䛾䜘䛖䛻⾲䛫䜛䠊䛣䛣䛷䠈'㼦㼖㻩㼦㼖㻗㻝㻙㼦㼖䠈']㼗㻩]㼗㻗㻝㻙]㼗䠊㻌 A(]k ,] k1,z j , zj 1 ) z2 㻌 z z ] ] 3 ª º z ª º 'zj * z * ] *z ] zΜ ln z ] » «« » Δz Μ = z1 − z Μ z1 y j 1 k 1 'zj 6 ¬¬ ¼] ] ] k 1 §'z *· ªªz ] 4 º ¨ j ¸ «« lnz ] » © 'z j ¹ ¬¬ 24 ¼] 2 º » ¼z 㻌 l ζ3 ζΝ Δζ 2 = ζ 3 − ζ 2 ζ1 ]k º » ¼z ] 3 ª º '] k ªz ] z * ] * lnz * ] *» «« '] k * ¬ 6 ¼] ¬ z j 1 zj ] k 1 ]k (a) 㻌z º » ¼z ]k º » ¼z ] ] k1 4 º ' ] k 'zj ªªz * ] * ln z * ] *» «« '] k * 'z j * ¬ 24 ¼] ¬ ]k x (b) 㻌 zj zj ζ2 Fig.1. Schematic view of two parallel conductors with triangular or polygonal cross-section, (a). Cross section of two parallel N-sided polygonal conductor of the vertices, ] 1, ] 2, ..., and ] N with ] N+1=] 1, and M-sided polygonal conductor of the vertices, z1, z2, ..., and zM with zM+1=z1, in the counterclockwise order (b). z j 1 ] ] k1 z z j 1 4 º § '] · ªªz * ] * ¨ k ¸ «« ln z * ] *» ©' ] k * ¹ ¬ 24 ¼] ¬ 2 zj x 㻌 z zj ] ] k 1 º '] k * 'z j * ªªz ] ln z ] » «« ' ] k 'zj ¬ 24 ¼] ¬ 4 ]k ¼z ]k z z j 1 㻌 z z j 1 º » ¼z (a) zj 㻌㻌㻌㻌㻌㻌㻌㻌㻌㻌㻌㻌㻌㻌㻌㻌㻌㻌(3)㻌 ᭦䛻䠈㻭㻔]㼗㻘㻌 ]㼗㻗㻝㻘㻌 㼦㼖㻌 㻘㼦㼖㻗㻝㻕㻌 䛿ᐇᩘ䛺䛾䛷䠈ୖᘧ䛿䠈ḟ䛾䜘䛖䛻ኚ ᙧ䠈⡆༢䛷䛝䜛䠊㻌 1 1 M N A A * ½ 25 ln Rpq ¾ ¦ ¦ ® 8 Sp Sq j 1 k 1 ¯ 2 ¿ 12 M N 1 1 25 ¦ ¦ B(]k ,] k 1,z j , zj 1 ) 12 8 Sp Sq j 1 k 1 㻌㻌㻌㻌㻌㻌㻌㻌㻌㻌㻌㻌㻌㻌㻌㻌㻌㻌㻌㻌㻌㻌㻌㻌 (4)㻌 (b) (c) Fig.2. Divided cross-section for the confirmation of inductance calculation by Eq.(2) or (4). It results that the numerical calculation by Eq.(4) is simple and better than Eq.(2). ཧ⪃ᩥ⊩ [1] T. Tominaka, Abstracts of CSJ Conference, vol.82, p.31 (2010). [2] T. Tominaka, J. Phys. A:Math. Gen. vol.39, p.6045-6055 (2006). B(] k ,] k 1 ,z j ,z j 1 ) ― 140 ― 第83回 2010年度秋季低温工学・超電導学会 1P-p45 電気機器 (2) 䜲䝑䝖䝸䜴䝮⣔㉸㟁ᑟኚᅽჾ䛾ᕳ⥺ᢏ⾡㛤Ⓨ㻌 㻔㻠㻕㻌 㻌 㻙㻌 ᆒ㟁ὶ䛸⪏▷⤡㟁ὶ㻌 㻙㻌 Winding technology development of Y-based HTS power transformers (4) - Shunt current uniformity and short-circuit current withstand - 㻯㼡㼞㼞㼑㼚㼠㻌㼇㻭㼉 㼂㼛㼘㼠㼍㼓㼑㻌㻌㼇㼂㼉 Shunt current rate (%) 㻌 ᒸඖ㻌 ὒ䠈ᯘ㻌 ⚽⨾䠄ᕞ㟁ຊ䠅䠗ᒾ⇃ᡂ༟䠈ᐩᒸ㻌 ❶䠄ᕞᏛ䠅䠗㰺⸨㻌 㝯䠄䝣䝆䜽䝷䠅䠗㻌 ᡤᏹ䠈⏫ᩗே䠈⏣㎶ᆂ୍䠈ሷཎ㻌 ⼥䠄㻿㻾㻸䠅㻌 OKAMOTO Hiroshi䠈 HAYASHI Hidemi (Kyushu Electric Power Co.); IWAKUMA Masataka, TOMIOKA Akira (Kyushu Univ.); SAITO Takashi (Fujikura Ltd.); GOSHO Yoshihiro, MACHI Takato, TANABE Keiichi, SHIOHARA Yuh (SRL) E-mail: [email protected] 㻌 㻌 㻝䠊䛿䛨䜑䛻㻌 㻌 ⤒῭⏘ᴗ┬䝥䝻䝆䜵䜽䝖䛂䜲䝑䝖䝸䜴䝮⣔㉸㟁ᑟ㟁ຊᶵჾᢏ 㻌 ⾡㛤Ⓨ䛃䛾㉸㟁ᑟኚᅽჾᢏ⾡㛤Ⓨ䛷䛿䚸㟁ὶ䛸⪏▷⤡ 㻌 㟁ὶ䛾ᕳ⥺ᢏ⾡䛻䜒ྲྀ⤌䜣䛷䛔䜛䚹ᮏ䝥䝻䝆䜵䜽䝖䛜㛤Ⓨ䜢 㻌 ┠ᣦ䛩㉸㟁ᑟኚᅽჾ 㻟 ┦ 㻞㻜㻹㼂㻭䠄㻢㻢㻛㻢㻚㻥䡇㼂䚸㻝㻣㻡㻛㻝㻘㻢㻣㻠㻭䠅 㻌 䛷䛿䚸ḟᕳ⥺䛾ᐃ᱁㟁ὶ䛿 㻞㼗㻭 ⣭䛷⣔⤫ᨾ䛾㐣㟁ὶ 㻌 䛿ᐃ᱁䛾⣙ 㻣 ಸ⛬ᗘ䛸䛺䜛䚹㟁ὶ㏻㟁䛾䛯䜑䛾ከᒙ୪ิ 㻌 ᕳ⥺䛾⣲⥺㟁ὶ䜢ᆒ୍䛻䛩䜛䛻䛿䚸㌿ᡭἲ䛾᭱㐺䛜㔜 㻌 せ䛷䛒䜛䚹ኚᅽჾᕳ⥺䛜୍ᐃ㛫䛾ᨾ㟁ὶ䠄▷⤡㟁ὶ䠅䛻 㻌 ⪏䛘䜛䛻䛿䚸㉸㟁ᑟ⥺ᮦ䛾Ᏻᐃ㖟ᒙ䜢ྵ䜑䛯㖡䛺䛹䛾ಖ 㻌 ㆤᵓ㐀䛾᭱㐺䛜ᚲせ䛷䛒䜛䚹㻌 㻌 ᅇ䚸㻝㻞 ᒙ 㻞 ୪䜃㌿ᕳ⥺䛾ὶ㏻㟁ヨ㦂䛚䜘䜃 㻠㻜㻜䡇 㻌 㼂㻭 ኚᅽჾ䛾▷⤡ヨ㦂䛻䛴䛔䛶ሗ࿌䛩䜛䚹㻌 㻌 㻞䠊ᐇ㦂᪉ἲ㻌 㻌 䠍䠎ᒙ 㻞 ୪ิ㌿ᕳ⥺䛾ᵝ䛿䚸ᕳ⥺ෆᚄ䃥㻟㻡㻜䡉䡉䚸㻠㻤 䝍 㻌Fig.1 Transposed coil. 䞊䞁䚸㌿ᩘ 㻞㻠 䛷䛒䜛䚹㻲㼕㼓㻚㻝 䛻㌿ᕳ⥺䠄እᚄ䃥㻜㻚㻠㼙䚸㧗䛥 Fig.2 400kVA transformer. 㻌 㻝㻚㻜㼙䠅䛾እほ䜢♧䛩䚹ᾮయ❅⣲ ᗘ䛷䚸┤ὶ 㻵㻙㼂 ≉ᛶ䛚䜘䜃 㻌 㻝㻞㻜 ὶ㏻㟁䛻䜘䜛ศὶ≉ᛶ䜢ホ౯䛧䛯䚹㻞㻠 ⣲⥺䛾㟁ὶ ᐃ䛿 㻌 䝻䝂䝇䜻䞊䝁䜲䝹䛷ᐇ䛧䛯䚹㻌 㻌 㻝㻜㻜 㻠㻜㻜㼗㼂㻭 ኚᅽჾ䛾ᵝ䛿䚸༢┦䚸㟁ᅽ 㻢㻚㻥㻛㻞㻚㻟㼗㼂䚸㟁ὶ 㻌 㻡㻤㻛㻝㻣㻠㻭䚸㻑䜲䞁䝢䞊䝎䞁䝇㻌 㻝㻡㻑䛷䛒䜛䚹ኚᅽჾᕳ⥺䛿䝃䝤䜽 㻌 䞊䝹ᾮయ❅⣲ ᗘ䠄㻢㻢㻷䠅䛻෭༷䛧䛯䚹㻲㼕㼓㻚㻞 䛻䛿 㻠㻜㻜㼗㼂㻭 ኚ 㻤㻜 㻌 ᅽჾ䠄እᚄ䃥㻝㻚㻜㼙䚸㧗䛥 㻞㻚㻟䡉䠅䛾እほ䜢♧䛩䚹▷⤡Ⓨ㟁ᶵ䜢 㻌 ⏝䛧䛯▷⤡ヨ㦂䛷䛿䚸᭱㟁ὶ䛸䛺䜛䛯䜑䛻ኚᅽჾḟ 㻢㻜 㻌 ഃ䜢㟁ᅽ┦ 㻜 ᗘ䛷▷⤡䛧䛯䚹▷⤡㟁ὶ䛻䜘䜛ᛶ䜢☜ㄆ 㻌 䛩䜛䛯䜑䛻䚸ヨ㦂䛾๓ᚋ䛷䚸ኚᅽჾᕳ⥺䛾㻑䜲䞁䝢䞊䝎䞁䝇䛚 㻠㻜 㻌 䜘䜃┤ὶ 㻵㻙㼂 ≉ᛶ䜢ホ౯䛧䛯䚹㻌 㻌 㻟䠊ᐇ㦂⤖ᯝ㻌 㻞㻜 㻌 ㌿ᕳ⥺䛿䚸┤ὶ㏻㟁䠄᭱ 㻝㻘㻝㻞㻜㻭䠅䛻䜘䜚㉸㟁ᑟᛶ⬟䜢 㻌 ☜ㄆᚋ䛻ὶ㏻㟁䛿᭱ 㻤㻜㻜㻭㼞㼙㼟 䜎䛷㏻㟁䛧䚸㟁ὶศὶ䜢☜ 㻌 ㄆ䛧䛯䚹㻲㼕㼓㻚㻟 䛿 㻤㻜㻜㻭㼞㼙㼟 ㏻㟁䛾 㻞㻠 ⣲⥺䛤䛸䛾㟁ὶศὶ⋡ 㻜 㻝 㻞 㻟 㻠 㻡 㻢 㻣 㻤 㻥 㻝㻜 㻝㻝 㻝㻞 㻝㻟 㻝㻠 㻝㻡 㻝㻢 㻝㻣 㻝㻤 㻝㻥 㻞㻜 㻞㻝 㻞㻞 㻞㻟 㻞㻠 㻌 䜢♧䛩䚹㟁ὶศὶ⋡䛾䝞䝷䝒䜻䛿 㻤㻤㻑䡚㻝㻝㻠㻑䛷䛒䛳䛯䚹㟁ὶ strand number 㻌 ศὶ⋡㼼㻝㻡㻑௨ୗ䜢㐩ᡂ䛧䚸㟁ὶ㏻㟁䛾ᕳ⥺㟁ὶ䜢ᆒ Fig.3 Shunt current rate of strands at 800Arms and 77K. 㻌 ୍䛩䜛㌿ᡭἲ䛜☜❧䛷䛝䛯䚹㻌 㻌 6,000 㻠㻜㻜㼗㼂㻭 ኚᅽჾ䛾▷⤡ヨ㦂㻔㻜㻚㻞 ⛊㛫㻕䛻䛚䛡䜛୍ḟᕳ⥺ 20,000 6.9 kVrms 6.1 kVrms 㻌 㟁ᅽ䛸ḟᕳ⥺㟁ὶ䜢 㻲㼕㼓㻚㻠 䛻♧䛩䚹▷⤡┤ᚋ䛻୍ḟ㟁ᅽ 10,000 㻌 5,000 䛿 㻝㻜㻑⛬ᗘపୗ䛧䚸ḟ㟁ὶ䛿ᐃ᱁䛾 㻢 ಸ⛬ᗘ䛸䛺䛳䛯䚹㻜㻚㻞 0 㻌 4,000 ⛊⤒㐣ᚋ䜒㟁ὶ䛜ῶ⾶䛧䛺䛔䛾䛿䚸⌧᭷䛾ኚᅽჾ䠄㖡⥺➼䛾 㻌 3,000 ᕳ⥺䠅䛸ᢠᡂศẚ⋡䛜␗䛺䜛ᙳ㡪䛷䛒䜛䚹▷⤡ヨ㦂ᚋ䚸ᕳ -10,000 1,040 A㼞㼙㼟 㻌 ⥺䛾䠂䜲䞁䝢䞊䝎䞁䝇䛚䜘䜃┤ὶ 㻵㻙㼂 ≉ᛶ䛜ヨ㦂๓䛸ẚ㍑䛧 2,000 -20,000 ኚ䛜䛺䛛䛳䛯䛣䛸䛛䜙ᕳ⥺䛾ᛶ䛚䜘䜃⪏▷⤡㟁ὶᵓ 㐀䛜᳨ド䛷䛝䛯䚹㻌 1,000 -30,000 ᚋ䚸ᕳ⥺䛾㟁ὶ≉ᛶ䛿䚸㛗ᑻ⥺ᮦ䛻䜘䜛ᐇჾ䝃䜲 0 -40,000 䝈䛾䝰䝕䝹䛻䜘䛳䛶᳨ド䛩䜛䚹㻌 -1,000 -50,000 㻌 0.2 S ㅰ㎡㻌 -2,000 -60,000 12.25 12.3 12.35 12.4 12.45 12.5 12.55 ᮏ◊✲䛿䚸⤒῭⏘ᴗ┬䝥䝻䝆䜵䜽䝖䛂䜲䝑䝖䝸䜴䝮⣔㉸㟁ᑟ 㼀㼕㼙㼑䚷㼇㻿䠹 㟁ຊᶵჾᢏ⾡㛤Ⓨ䠄㉸㟁ᑟኚᅽჾᢏ⾡㛤Ⓨ䠅䛃䜢 㻺㻱㻰㻻 ጤク Fig.4 Voltage and current during the short-circuit test. ᴗ䛻䜘䜚ᐇ䛧䛯䚹ᐩኈ㟁ᶵ䝅䝇䝔䝮䝈䠄ᰴ䠅㛵ಀ⪅䛾ᨭ 䛻ㅰព䜢⾲䛧䜎䛩䚹㻌 ― 141 ― 第83回 2010年度秋季低温工学・超電導学会 1P-p46 電気機器 (2) 㻾㻱㻮㻯㻻 ㉸㟁ᑟኚᅽჾ䛾㐣㟁ὶ䛻ᑐ䛩䜛ᛂ⟅≉ᛶ䛾᳨ウ㻌 㻿㼠㼡㼐㼥㻌㼛㼚㻌㼠㼔㼑㻌㼞㼑㼟㼜㼛㼚㼟㼑㻌㼛㼒㻌㼍㻌㻾㻱㻮㻯㻻㻌㼟㼡㼜㼑㼞㼏㼛㼚㼐㼡㼏㼠㼕㼚㼓㻌㼠㼞㼍㼚㼟㼒㼛㼞㼙㼑㼞㻌㼠㼛㻌㼒㼍㼡㼘㼠㻌㼑㼤㼏㼑㼟㼟㻌㼏㼡㼞㼞㼑㼚㼠㻌 temperature[K] current[A] 㻌 ሐ㻌 ᬛ❶䠈எᡂ㻌 ㈗᫂䠈ᐩᒸ㻌 ❶䠈ᯇᑿ㻌 ᨻ䠈బ⸨㻌 ㄔᶞ䠈ᒾ⇃㻌 ᡂ༟䠄ᕞᏛ䠅䠗ᒸඖ㻌 ὒ䠈ᯘ㻌 ⚽⨾䠄ᕞ㟁ຊ䠅䠗㣤ᓥ㻌 ᗣ⿱䠈 㰺⸨㻌 㝯䠄䝣䝆䜽䝷䠅䠗⇃㻌 Ṋ䠈ᡤ㻌 ᏹ䠈Ἠ㻌 ㍤㑻䠈ሷཎ㻌 ⼥䠄㻵㻿㼀㻱㻯䠅㻌 㼀㻿㼁㼀㻿㼁㻹㻵㻌㼀㼛㼙㼛㼍㼗㼕䠈㻌 㻻㼀㻻㻺㻭㻾㻵㻌㼀㼍㼗㼍㼍㼗㼕䠈㼀㻻㻹㻵㻻㻷㻭㻌㻭㼗㼕㼞㼍䠈㻌 㻹㻭㼀㻿㼁㻻㻌㻹㼍㼟㼍㼍㼗㼕䠈㻌 㻿㻭㼀㻻㻌㻿㼑㼕㼗㼕䠈㻌 㻵㼃㻭㻷㼁㻹㻭㻌㻹㼍㼟㼍㼠㼍㼗㼍㻌 㻔㻷㼥㼟㼔㼡㻙㼁㼚㼕㼢㻚㻕㻧㻌㻻㻷㻭㻹㻻㼀㻻㻌㻴㼕㼞㼛㼟㼔㼕䠈㻌 㻴㻭㼅㻭㻿㻴㻵㻌㻴㼕㼐㼑㼙㼕㻌㻔㻷㼥㼡㼟㼔㼡㻌㻱㼘㼑㼏㼠㼞㼕㼏㻌㻼㼛㼣㼑㼞㻌㻯㼛㻚㻕㻧㻌㻵㻵㻶㻵㻹㻭㻌㼅㼍㼟㼡㼔㼕㼞㼛䠈㻌 㻿㻭㻵㼀㻻㻌㼀㼍㼗㼍㼟㼔㼕㻌 㻔㻲㼡㼖㼕㼗㼡㼞㼍㻌㻸㼠㼐㻚㻕㻧㻌㻻㻷㼁㻹㻭㻌㼀㼍㼗㼑㼟㼔㼕䠈㻌 㻳㻻㻿㻴㻻㻌㼅㼛㼟㼔㼕㼔㼕㼞㼛䠈㻌 㻵㼆㼁㻹㻵㻌㼀㼑㼞㼡㼛䠈㻌 㻿㻴㻵㻻㻴㻭㻾㻭㻌㼅㼡㼔㻌㻔㻵㻿㼀㻱㻯㻕㻌 㻱㻙㼙㼍㼕㼘㻦㻌㼠㼟㼡㼠㼟㼡㼙㼕㻬㼟㼏㻚㼗㼥㼡㼟㼥㼡㻙㼡㻚㼍㼏㻚㼖㼜㻌 㻌 㻝䠊䛿䛨䜑䛻㻌 ḟ䛻䚸ᕳ⥺䛾 ᗘኚ䜢 㻲㼕㼓㻚㻞 䛻♧䛩䚹㼀㻝䚸㼀㻞 䛿䛭䜜䛮䜜 ㉸㟁ᑟ䜢㟁ຊᶵჾ䛻ᛂ⏝䛩䜛䛣䛸䛷䚸ᑠᆺ䞉㍍㔞䚸㧗ຠ ୍ḟ䚸ḟᕳ⥺䛷ᆶ┤☢ሙ䛜༳ຍ䛥䜜䚸 ᗘୖ᪼䛜㢧ⴭ䛺 ⋡䛸䛔䛳䛯ຠᯝ䛜ᚓ䜙䜜䜛䛣䛸䛜ᮇᚅ䛥䜜䛶䛔䜛䚹᪂䜶䝛䝹 ୖ➃㒊䛷䛒䜛䚹▷⤡㟁ὶ䛜㖡⥺䛻㌿ὶ䛩䜛䛣䛸䛷 ᗘୖ᪼䛜 䜼䞊䞉⏘ᴗᢏ⾡⥲ྜ㛤Ⓨᶵᵓ䠄㻺㻱㻰㻻䠅䛾䛂䜲䝑䝖䝸䜴䝮⣔㉸㟁 ᢚ䛘䜙䜜䛶䛔䜛䛸⪃䛘䜙䜜䜛䚹㻌 ᑟ㟁ຊᶵჾᢏ⾡㛤Ⓨ䛃䛷䛿䚸㻢㻢㼗㼂㻛㻢㻚㻥㼗㼂㻙㻞㻜㻹㼂㻭 ⣭䛾㉸㟁 ᙜ᪥䚸ᖖ㟁ᑟᢠྜ䚸㝈ὶ䝰䝕䝹䛾᳨ウ➼䜒ሗ࿌䛩䜛䚹㻌 ᑟኚᅽჾ䛾タィ䞉〇సᢏ⾡䛾☜❧䜢┠ᣦ䛧䛶䛔䜛䚹㓄㟁⏝ኚ 㻌 1000 ᅽჾ䛸䛧䛶ᐇ⏝䛩䜛Ⅽ䛻䛿䚸㟁ຊ⣔⤫䛷䛾▷⤡ᨾ䛻䜘䜛 㻌 calculation 㐣㟁ὶ䛻⪏䛘䜛▷⤡ᛶ⬟䛜ᚲせ䛸䛺䜛䚹䛭䛣䛷䚸ᮏ◊✲䛷 㻌 800 experiment 䛿䚸㻞㻜㻹㼂㻭 ⣭䛾㉸㟁ᑟኚᅽჾ䛾ᢏ⾡䛜᳨ド䛷䛝䜛᭱ᑠᐜ㔞 㻌 600 䛾 㻢㻚㻥㼗㼂㻛㻞㻚㻟㼗㼂㻙㻠㻜㻜㼗㼂㻭 ⣭䛾㉸㟁ᑟኚᅽჾ䜢ヨస䛧䚸ḟ 㻌 ഃ䛾▷⤡ᨾ䜢ᶍᨃ䛧䛯✺Ⓨ▷⤡ヨ㦂䛻䜘䜚䚸㐣㟁ὶ䛻 㻌 400 ᑐ䛩䜛ᛂ⟅≉ᛶ䛾ホ౯䜢⾜䛳䛯䚹䛥䜙䛻䚸ᩘ್ゎᯒ䝁䞊䝗䜢 㻌 200 ⏝䛔䛶䚸ᛂ⟅≉ᛶ䛾ヲ⣽䜢᳨ウ䛧䛯䚹㻌 㻌 0 㻌 㻌 㻞䠊タィ䞉ヨస䞉ヨ㦂㻌 㻌 -200 ᅇ䚸ヨ㦂䛻⏝䛧䛯㉸㟁ᑟኚᅽჾ䛾ᵝ䜢 㼀㼍㼎㼘㼑㻚㻝 䛻 㻌 -400 ♧䛩䚹㉸㟁ᑟኚᅽჾ䛻⏝䛔䛯㉸㟁ᑟᑟయ䛿䚸㖡⥺䜢䝝䞁䝎 㻌 䛡䛧䛯 㻾㻱㻮㻯㻻 ⥺䛷䛒䜛䚹䛣䛾▷⤡䝰䝕䝹䛷䛿䚸▷⤡㐣 㻌 -600 0 0.04 0.08 0.12 0.16 0.2 㟁ὶ䛜ὶ䜜䛯㝿䛻䚸㖡⥺䛻㟁ὶ䜢㌿ὶ䛥䛫䜛䛣䛸䛷Ⓨ⇕䜢ᢚ 㻌 time[s] 䛘䜛䛣䛸䚸䛥䜙䛻 㻾㻱㻮㻯㻻 ⥺ᮦ≉ᛶຎ䜢㜵䛠䜢┠ⓗ䛸䛧䛶 㻌 䛔䜛䚹䛣䛾ᵓᡂ䛷䛿㝈ὶຠᯝ䛿ᮇᚅ䛷䛝䛺䛔䛜䚸Ⓨ⇕㔞䜢ᢚ 㻲㼕㼓㻚㻝㻌㼏㼍㼘㼏㼡㼘㼍㼠㼕㼛㼚㻌㼍㼚㼐㻌㼑㼤㼜㼑㼞㼕㼙㼑㼚㼠㻌㼏㼡㼞㼞㼑㼚㼠㻌 ไ䛩䜛䛸䛔䛖ほⅬ䛛䜙䛿㝈ὶຠᯝ䜢᭷䛩䜛ሙྜ䛸ྠ➼䛾ຠᯝ 㻌 䜢ᚓ䜙䜜䜛䚹ヨస䛧䛯ኚᅽჾ䛿䚸⪏㟁ᅽヨ㦂䜔㏻㟁ヨ㦂䛺䛹 㻌 100 䜢⾜䛔䚸タィ㏻䜚䛷䛒䜛䛣䛸䜢☜ㄆ䛧䛯ᚋ䚸✺Ⓨ▷⤡ヨ㦂䜢⾜ 㻌 T1 95 䛳䛯䚹▷⤡ヨ㦂๓ᚋ䛻䛚䛔䛶䚸㻵㻙㼂 ≉ᛶ䚸ኚᅽჾᕳ⥺䛾䜲䞁 㻌 T2 䝢䞊䝎䞁䝇䛻ኚ䛜↓䛛䛳䛯䛣䛸䛛䜙䚸▷⤡㟁ὶ䛻⪏䛘䜛䛣䛸 㻌 90 䛜ฟ᮶䛯䛸䛔䛘䜛䚹㻌 㻌 85 㻌 㻌 㼀㼍㼎㼘㼑㻚㻝㻌㼜㼍㼞㼍㼙㼑㼠㼑㼞㼟㻌㼛㼒㻌㼟㼡㼜㼑㼞㼏㼛㼚㼐㼡㼏㼠㼕㼚㼓㻌㼠㼞㼍㼚㼟㼒㼛㼞㼙㼑㼞㻌 㻌 80 㻌 㻌 ୍ḟ㻌 ḟ㻌 㻌 ┦ᩘ㻌 ༢┦㻌 75 㻌 ᐃ᱁ᐜ㔞㻌 㻠㻜㻜㼗㼂㻭㻌 70 㻌 ᐃ᱁㟁ᅽ㻌 㻢㻚㻥㼗㼂㻌 㻞㻚㻟㼗㼂㻌 㻌 ᐃ᱁㟁ὶ㻌 㻡㻤㻭㻌 㻝㻣㻠㻭㻌 65 0 0.05 0.1 0.15 0.2 㻌 ᐃ᱁࿘Ἴᩘ㻌 㻢㻜㻴㼦㻌 time[s] 㻑䜲䞁䝢䞊䝎䞁䝇㻌 㻝㻡㻑䠄㻠㻜㻜㼗㼂㻭 ᇶ‽䠅㻌 ㉸㟁ᑟ⥺୪ิᮏᩘ㻌 㻝 ᮏ㻌 㻟 ᮏ㻌 㻲㼕㼓㻚㻞㻌㼠㼑㼙㼜㼑㼞㼍㼠㼡㼞㼑㻌㼛㼒㻌㼣㼕㼚㼐㼕㼚㼓㻌 䝍䞊䞁ᩘ㻌 㻡㻣㻢㻌 㻝㻥㻞㻌 㻌 㐠㌿ ᗘ㻌 㻢㻢㻷䠄㐣෭༷ᾮయ❅⣲䠅㻌 ㅰ㎡㻌 እᑍ㻌 ᖜ 㻝㻝㻣㻡㼙㼙㽢ዟ⾜ 㻝㻜㻞㻜㼙㼙 ᮏ◊✲䛿䛂䜲䝑䝖䝸䜴䝮⣔㉸㟁ᑟ㟁ຊᶵჾᢏ⾡㛤Ⓨ䛃䛾୍ 㽢㧗䛥 㻞㻞㻤㻠㼙㼙㻌 ⎔䛸䛧䛶䚸㻵㻿㼀㻱㻯䜢㏻䛨䛶㻺㻱㻰㻻䛛䜙䛾ጤク䜢ཷ䛡䛶ᐇ䛧䛯 㔜㔞㻌 㻞㻤㻜㻜㼗㼓䠄෭፹ྵ䠅㻌 䜒䛾䛷䛒䜛䚹㻌 㻌 㻟䠊ᩘ್ゎᯒ㻌 ḟഃ䜢୍ḟഃ䛻⟬䛧䛯ᅇ㊰᪉⛬ᘧ䜢⏝䛔䛯ᩘ್ゎ ᯒ䝁䞊䝗䛻䜘䜚ᩘ್ゎᯒ䜢⾜䛔䚸㏻㟁㟁ὶ䚸ᕳ⥺ ᗘ䚸ᖖ㟁 ᑟᢠྜ䛾㛫ኚ䜢⟬ฟ䛧䛯䚹㻌 ✺Ⓨ▷⤡ヨ㦂䛻䛚䛡䜛㏻㟁㟁ὶ䛾㛫ኚ䜢 㻲㼕㼓㻚㻝 䛻♧ 䛩䚹ᅗ䛛䜙ㄞ䜏ྲྀ䜜䜛䜘䛖䛻䚸ᐇ㦂⤖ᯝ䛸ᩘ್ゎᯒ⤖ᯝ䛿䜘䛟 ୍⮴䛧䛶䛚䜚䚸ゎᯒ䝁䞊䝗䛿ᴫ䛽ጇᙜ䛷䛒䜛䛸⪃䛘䜙䜜䜛䚹㻌 ― 142 ― 第83回 2010年度秋季低温工学・超電導学会 1P-p47 電気機器 (2) 㻡㻜㻜㼗㼃㻌㻾㻱㻮㻯㻻 ㉸㟁ᑟྠᮇ䝰䞊䝍䛾タィ᳨ウ㻌 㻰㼑㼟㼕㼓㼚㻌㼟㼠㼡㼐㼥㻌㼛㼒㻌㼍㻌㻡㻜㻜㼗㼃㻌㻾㻱㻮㻯㻻㻌㼟㼡㼜㼑㼞㼏㼛㼚㼐㼡㼏㼠㼕㼚㼓㻌㼟㼥㼚㼏㼔㼞㼛㼚㼛㼡㼟㻌㼙㼛㼠㼛㼞㻌 㻌 ⏣㻌 ៅ୍ᮁ䠈⥴᪉㻌 ಇஅ䠈ᒾ⇃㻌 ᡂ༟䠄ᕞᏛ䠅䠗㛗㇂㻌 ྜྷ䠈బ⸨㻌 ᑑὒ㻘㻌 ᐩᒸ㻌 ❶㻘㻌 㔝㻌 㞞⾜䠄ᐩኈ㟁ᶵ䠅䠗㻌 ᒣ⏣㻌 ✨䠈᳜⏣㻌 ᾈྐ䠈Ἠ㻌 ㍤㑻䠈ሷཎ㻌 ⼥䠄㻵㻿㼀㻱㻯䠅㻌 㼀㻻㻹㻻㻰㻭㻌㻿㼔㼕㼚㼕㼏㼔㼕㼞㼛䠈㻌 㻻㻳㻭㼀㻭㻌㼀㼛㼟㼔㼕㼥㼡㼗㼕䠈㻌 㻵㼃㻭㻷㼁㻹㻭㻌㻹㼍㼟㼍㼠㼍㼗㼍㻌㻔㻷㼥㼡㼟㼔㼡㻌㼁㼚㼕㼢㻚㻕㻧㻌 㻌 㻴㻭㻿㻱㻌㼅㼛㼟㼔㼕㼖㼕䠈㻌 㻿㻭㼀㻻㻌㼀㼛㼟㼔㼕㼔㼕㼞㼛䠈㻌 㼀㻻㻹㻵㻻㻷㻭㻌㻭㼗㼕㼞㼍䠈㻌 㻷㻻㻺㻺㻻㻌㻹㼍㼟㼍㼥㼡㼗㼕㻌㻔㻲㼡㼖㼕㻌㻱㼘㼑㼏㼠㼞㼕㼏㻕㻧㻌 㻌 㼅㻭㻹㻭㻰㻭㻌㼅㼡㼠㼍㼗㼍䠈㻌 㼁㻱㻰㻭㻌㻴㼕㼞㼛㼟㼔㼕䠈㻌 㻵㼆㼁㻹㻵㻌㼀㼑㼞㼡㼛䠈㻌 㻿㻴㻵㻻㻴㻭㻾㻭㻌㼅㼡㼔㻌㻔㻵㻿㼀㻱㻯㻕㻌 㻱㻙㼙㼍㼕㼘㻦㻌㼠㼛㼙㼛㼐㼍㻬㼟㼏㻚㼗㼥㼡㼟㼔㼡㻙㼡㻚㼍㼏㻚㼖㼜㻌 㻌 㼀㼍㼎㼘㼑㻌㻝㻌㻰㼑㼟㼕㼓㼚㻌㼜㼍㼞㼍㼙㼑㼠㼑㼞㼟㻌㼛㼒㻌㼠㼔㼑㻌㻿㼡㼜㼑㼞㼏㼛㼚㼐㼡㼏㼠㼕㼚㼓㻌㼙㼛㼠㼛㼞㻌 㻝䠊䛿䛨䜑䛻㻌 㻾㻱㻮㻯㻻 ㉸㟁ᑟ⥺ᮦ䛿Ⰻዲ䛺☢ሙ୰⮫⏺㟁ὶᐦᗘ≉ᛶ 㻾㼍㼠㼕㼚㼓㻛㼟㼜㼑㼑㼐㻌 㻡㻜㻜㼗㼃㻛㻝㻤㻜㻜㼞㼜㼙㻌 䜢᭷䛧䠈䛭䜜䜢䝰䞊䝍䛻ᛂ⏝䛩䜛䛣䛸䛷ᑠᆺ䠈㧗ຠ⋡䛜 㻾㼍㼠㼕㼚㼓㻌㼢㼛㼘㼠㼍㼓㼑㻌 㻠㻠㻜㼂㻌 ᮇᚅ䛷䛝䜛䚹ᡃ䚻䛿䠈㻾㻱㻮㻯㻻 ㉸㟁ᑟ⥺ᮦ䜢⏝䛔䛯⏘ᴗ⏝䠈 㻾㼍㼠㼕㼚㼓㻌㼏㼡㼞㼞㼑㼚㼠㻌 㻣㻜㻜㻭㻌 ᆺ⮬ື㌴⏝䛾 㻡㻜㻜㼗㼃㻙㻝㻤㻜㻜㼞㼜㼙 ㉸㟁ᑟྠᮇ䝰䞊䝍䛾タィ 㻲㼞㼑㼝㼡㼑㼚㼏㼥㻌 㻢㻜㻴㼦㻌 ᳨ウ䜢⾜䛳䛶䛚䜚䠈䛣䜜䜎䛷 㻾㻱㻮㻯㻻 ㉸㟁ᑟ⥺ᮦ䛾⮫⏺㟁ὶ 㻺㼡㼙㼎㼑㼞㻌㼛㼒㻌㼜㼛㼘㼑㻌 㻠㻌 䛾 ᗘ䠈☢ሙ౫Ꮡᛶ䜢⪃៖䛧䛯ୖ䛷䠈⏺☢ᕳ⥺䛜㟁ᶵᏊ䛸䛾 䜼䝱䝑䝥䛻䛚䛔䛶᭱䜒ຠ⋡䜘䛟☢ሙ䜢Ⓨ⏕䛷䛝䜛ᙧ≧䛻䛴䛔 䛶᳨ウ䛧䛶䛝䛯䚹ᅇ䛿䛭䛾ᙧ≧䜢⏝䛔䛶䠈䜼䝱䝑䝥䛻᭱ ☢᮰ᐦᗘ 㻞㼀 䜢Ⓨ⏕䛷䛝䜛✵ⰺ䛾䝰䞊䝍䛾ᵓ㐀䜢᫂䜙䛛䛻䛧䠈 ᐃ᱁㏿ᗘ䛻ᅇ㌿Ꮚ䛻༳ຍ䛥䜜䜛ኚື☢ሙ䛻䛴䛔䛶ᩘ್ゎ ᯒ䜢⾜䛔䠈⏺☢㉸㟁ᑟ䝁䜲䝹䛻Ⓨ⏕䛩䜛ὶᦆኻ䛻䛴䛔䛶 ぢ✚䜒䛳䛯䛾䛷ሗ࿌䛩䜛䚹㻌 㻌 㻞䠊㻡㻜㻜㼗㼃㻌㻾㻱㻮㻯㻻 ㉸㟁ᑟྠᮇ䝰䞊䝍䛾ᵝ㻌 㼀㼍㼎㼘㼑㻌 㻝 䛻㉸㟁ᑟྠᮇ䝰䞊䝍䛾ᵝ䜢♧䛩䚹⏝䛩䜛 㻾㻱㻮㻯㻻 ㉸㟁ᑟ⥺ᮦ䛸䛧䛶䛿䠈ཌ䛥 㻝㻜㻜䃛㼙 䛾䝝䝇䝔䝻䜲䝔䞊 䝥䜢ᇶᯈ䛸䛩䜛ᖜ 㻡㼙㼙䠈㉸㟁ᑟᒙཌ 㻝䃛㼙䠈㖟ᒙཌ 㻝㻜䃛㼙 䛷 㖡Ᏻᐃᒙ䜢ຍ䛘䛯య䛜 㻞㻜㻜䃛㼙 ཌ䛾䜒䛾䜢ᐃ䛧䛯䚹䛣 䛾⮫⏺㟁ὶ 㻵㼏䠈䠈ὶᦆኻ䛾 ᗘ䠈☢ሙ≉ᛶ䛸䛧䛶䛿䠈⌧ᅾ㛤 Ⓨ䛥䜜䛶䛔䜛⥺ᮦ䜢ཧ⪃䛻䛧䛶䛚䜚䠈⮫⏺㟁ὶ 㻝㻞㻤㻭㻌 㻬㻣㻣㻷䠈 㻜㼀 䛷䛒䜛ேᕤ䝢䞁ධ䜚䛾 㻵㻮㻭㻰㻔㻳㼆㻻㻕㻙㻼㻸㻰㻔㻳㼐㻮㻯㻻㻗㻮㼆㻻㻕⥺ ᮦ䜢ᐃ䛧䛯䚹㻌 㻌 㻟䠊ゎᯒ᪉ἲ㻌 㻲㼕㼓㻚㻝 䛻䝰䞊䝍᩿㠃䜢♧䛩䚹ᅇ㌿Ꮚෆ䛾㉸㟁ᑟ⏺☢ᕳ⥺ 䛿ᕳᩘ䛾␗䛺䜛䝎䝤䝹䝟䞁䜿䞊䜻䝁䜲䝹䜢 㻡 ಶ✚ᒙ䛧䛯⳻ᆺ ᩿㠃ᵓ㐀䛸䛧䠈⏺☢㟁ὶ䛿⮫⏺㟁ὶ䛾 㻜㻚㻤 ಸ䛻タᐃ䛧䛯䚹㟁 ᶵᏊᕳ⥺䛾⣲⥺䛿㖡⥺䛸䛧䛯䚹ゎᯒ䛿ᕷ㈍䛾㟁☢ሙゎᯒ䝋 䝣䝖 㻭㼚㼟㼥㼟 䜢⏝䛔䛯 㻞 ḟඖ☢ሙゎᯒ䛷䛒䜛䚹䜎䛪䠈㟁ᶵᏊᕳ⥺ 䛻୕┦ὶ䜢ὶ䛧䠈ᅇ㌿Ꮚ䜢ᐃ᱁㏿ᗘ䛷ᅇ㌿䛥䛫䛺䛜䜙ᅇ㌿ Ꮚ䛻༳ຍ䛥䜜䜛☢ሙኚື䛻䛴䛔䛶ᩘ್ゎᯒ䜢⾜䛳䛯䚹ḟ䛻䠈 䛭䛾☢ሙᖜ䛛䜙㉸㟁ᑟ⏺☢ᕳ⥺䛻Ⓨ⏕䛩䜛ὶᦆኻ䜢ぢ ✚䜒䛳䛯䚹䛣䛣䛷䠈⮫⏺㟁ὶ䛚䜘䜃ὶᦆኻ䛻䛴䛔䛶䛿⥺ᮦ 䛾ᆶ┤☢⏺ᡂศ䜘䜚⟬ฟ䛧䛯䚹㻌 㻌 㻠䠊ゎᯒ⤖ᯝ䛸⪃ᐹ㻌 ᩘ್ゎᯒ䛾⤖ᯝ䠈ᅛᐃᏊኚື☢ሙ䛻䜘䜚ᅇ㌿Ꮚ䛻༳ຍ䛥 䜜䜛☢ሙኚື䛾ᖜ䛿 㻝㻜㻙㻠 䛛䜙 㻝㻜㻙㻡㻌 㼀 䜸䞊䝎䞊䛷䛒䜚䠈䛭䛣 䛛䜙ぢ✚䜒䜙䜜䜛ὶᦆኻ䛿 㻝㼃 ௨ୗ䛷↓ど䛷䛝䜛䛣䛸䛜ศ䛛 䛳䛯䚹䜎䛯䠈䝖䝹䜽䛾ኚື䜒 㻜㻚㻝㻑⛬ᗘ䛸ᑠ䛥䛔䛯䜑䠈䝎䞁䝟䞊䝅 䞊䝹䝗䛜↓䛟䛶䜒ື䞉㦁㡢䛜ၥ㢟䛻䛺䜙䛪䠈ᑠᆺ䛻䜒䛴䛺 䛜䜛䚹ᚋ䠈䛥䜙䛻ᑠᆺ䠈㧗ຠ⋡䜢┠ᣦ䛧䛶タィ᳨ウ䜢 㐍䜑䛶䛔䛟䚹ヲ⣽䛿ᙜ᪥ሗ࿌䛩䜛䚹㻌 㻌 ㅰ㎡㻌 ᮏ◊✲䛿䠈㻺㻱㻰㻻 䛛䜙䛾ጤク◊✲䛂ᕼᑡ㔠ᒓ௦᭰ᮦᩱ㛤 Ⓨ䝥䝻䝆䜵䜽䝖䛃䛾୍㒊䛸䛧䛶ᐇ䛧䛯䜒䛾䛷䛒䜛䚹㻌 㻌 㻌 㻌 㻵㼚㼟㼕㼐㼑㻌㼐㼕㼍㼙㼑㼠㼑㼞㻌㼛㼒㻌㼟㼠㼍㼠㼛㼞㻌 㻟㻢㻜㼙㼙㻌 㻻㼡㼠㼟㼕㼐㼑㻌㼐㼕㼍㼙㼑㼠㼑㼞㻌㼛㼒㻌㼟㼠㼍㼠㼛㼞㻌 㻣㻜㻜㼙㼙㻌 㻰㼕㼞㼑㼏㼠㻌㼍㼤㼕㼍㼘㻌㼘㼑㼚㼓㼠㼔㻌 㻲㼕㼑㼘㼐㻌㼏㼛㼕㼘㻌 㻞㻝㻜㼙㼙㻌 㻰㼕㼍㼙㼛㼚㼐㻙㼟㼔㼍㼜㼑㼐㻌㼏㼛㼕㼘 㻌 㻹㼕㼚㼕㼙㼡㼙㻌㼏㼞㼕㼠㼕㼏㼍㼘㻌㼏㼡㼞㼞㼑㼚㼠㻌 㻞㻥㻞㻭㻌 㻌 㻾㼍㼠㼑㼐㻌㼏㼡㼞㼞㼑㼚㼠㻌 㻞㻟㻜㻭㻌 㻌 㼀㼍㼜㼑㻌㼘㼑㼚㼓㼠㼔㻌㼜㼑㼞㻌㼍㻌㼜㼛㼘㼑㻌 㻝㻡㻝㻜㼙㻌 㻌 㻻㼜㼑㼞㼍㼠㼕㼚㼓㻌㼠㼑㼙㼜㼑㼞㼍㼠㼡㼞㼑㻌 㻌 㻹㼍㼤㼕㼙㼡㼙㻌㼙㼍㼓㼚㼑㼠㼕㼏㻌㼒㼕㼑㼘㼐㻌㼕㼚㻌㼠㼔㼑㻌㼓㼍㼜㻌 㻭㼞㼙㼍㼠㼡㼞㼑㻌㼣㼕㼚㼐㼕㼚㼓㻌 㻠㻜㻷㻌 㻞㻚㻜㻢㼀㻌 㻯㼛㼜㼜㼑㼞㻌㼣㼕㼚㼐㼕㼚㼓㻌 㻌 㻺㼡㼙㼎㼑㼞㻌㼛㼒㻌㼠㼡㼞㼚㻌㼜㼑㼞㻌㼟㼘㼛㼠㻌 㻢㻌 㻲㼕㼓㻚㻝㻌㻯㼞㼛㼟㼟㻌㼟㼑㼏㼠㼕㼛㼚㻌㼛㼒㻌㻾㻱㻮㻯㻻㻌㻿㼡㼜㼑㼞㼏㼛㼚㼐㼡㼏㼠㼕㼚㼓㻌㼙㼛㼠㼛㼞㻌 ― 143 ― 㻲㼕㼓㻚㻞㻌㻞㻰㻌㻲㻱㻌㼏㼍㼘㼏㼡㼘㼍㼠㼕㼛㼚㻌㼞㼑㼟㼡㼘㼠㼟㻌㼛㼒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㼒㼛㼞㻌㼒㼕㼑㼘㼐㻌㼏㼛㼕㼘㻌㼏㼞㼛㼟㼟㻌㼟㼑㼏㼠㼕㼛㼚㻌 第83回 2010年度秋季低温工学・超電導学会