Numerical Simulation of Contactless Methods for Measuring jC Distribution of High Temperature Superconducting Thin Film
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概要
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The inductive method and the permanent magnet method for measuring the critical current density in a high-temperature superconducting (HTS) thin film have been investigated numerically. For this purpose, a numerical code has been developed for analyzing the time evolution of the shielding current density in a HTS sample. The results of computations show that, in the inductive method, the critical current density near the film edge cannot be accurately evaluated. On the other hand, it is found that, in the permanent magnet method, even if the magnet is placed near the film edge, the maximum repulsive force is roughly proportional to the critical current density. This means that the critical current density near the film edge can be estimated from the resulting proportionality constants.
- 社団法人 プラズマ・核融合学会の論文
著者
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Nakamura Hiroaki
National Inst. Fusion Sci. Toki Jpn
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KAMITANI Atsushi
Yamagata University, Yamagata 992-8510, Japan
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KAMITANI Atsushi
Yamagata University, 4-3-16, Johnan, Yonezawa 992-8510, Japan
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TAKAYAMA Teruou
Yamagata University, Yamagata 992-8510, Japan
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TAKAYAMA Teruou
Yamagata University
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KAMITANI Atsushi
Yamagata University
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