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Department of Computer Science and Electronics, Kyushu Institute of Technology, 680-4 Kawazu, Iizuka 820-8502, Japan
Department of Computer Science and Electronics, Kyushu Institute of Technology, 680-4 Kawazu, Iizuka 820-8502, Japan
Department of Physics, Yeungnam University, Gyeongsan 38541, Korea
Department of Physics, Yeungnam University, Gyeongsan 38541, Korea
Western Superconducting Technologies Co., Ltd, Xi’an 710018, China
Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China
Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China
Technical Division, Fermi National Accelerator Laboratory, Batavia, IL 60510, USA
Technical Division, Fermi National Accelerator Laboratory, Batavia, IL 60510, USA
Physics Department, Durham University, Durham, DH1 3LE, United Kingdom
Physics Department, Durham University, Durham, DH1 3LE, United Kingdom
抄録
In this paper, a round robin test of residual resistance ratio (RRR) is performed for Nb3Sn composite superconductors prepared by an internal tin method by six institutes with the international standard test method described in IEC 61788-4. It was found that uncertainty mainly resulted from determination of the cryogenic resistance from the intersection of two straight lines drawn to fit the voltage versus temperature curve around the resistive transition. The measurement clarified that RRR can be measured with expanded uncertainty not larger than 5% with the coverage factor 2 by using this test method.
雑誌名
IEEE Transactions on Applied Superconductivity
巻
28
号
2
発行年
2017-12-07
出版者
IEEE
ISSN
1051-8223
1558-2515
2378-7074
書誌レコードID
AA10791666
DOI
info:doi/10.1109/TASC.2017.2781182
権利
Copyright (c) 2017 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Round Robin Test of Residual Resistance Ratio of Nb3Sn Composite Superconductors
10316511.pdf
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