Influence of magnetic-field dependence of Jc and ρf on magnetic shielding performance of HTS plates

被引：0
|
作者：
Kamitani, A [1 ]
Hasegawa, K [1 ]
Yokono, T [1 ]
Ohshima, S [1 ]
机构：
[1] Yamagata Univ, Fac Engn, Yamagata 9928510, Japan
来源：
ADVANCES IN SUPERCONDUCTIVITY XII | 2000年
关键词：
magnetic shielding; YBCO; flux flow; flux creep;
D O I：
暂无
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The magnetic shielding performance of the high-Tc superconductor (HTS) is numerically investigated by taking account of the magnetic-field dependence of the critical current density J(C). In order to describe the B-dependence, the Kim model is employed. The numerical code for analyzing the time evolution of the shielding current density has been developed and the damping coefficients are evaluated by use of the code. The results of computations show the magnetic shielding performance of the HTS is hardly influenced by the B-dependence of J(C) if the amplitude of the applied ac magnetic flux density is less than 1 T.
引用
收藏
页码：869 / 871
页数：3
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