Analysis on the cryogenic stability and mechanical properties of the LHD helical coils

被引：11
作者：
Yanagi, N
Imagawa, S
Mito, T
Gavrilin, AV
Hamaguchi, S
Sekiguchi, H
Chikaraishi, H
Iwamoto, A
Nishimura, A
Nakamura, Y
Satow, T
Motojima, O
机构：
[1] Natl Inst Fus Sci, Gifu 5095292, Japan
[2] Natl High magnet Field Lab, Tallahassee, FL 32310 USA
来源：
IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 2002年 / 12卷 / 01期
关键词：
aluminum stabilizer; dynamic stability; helical coils; LHD; numerical simulation; pulse height analysis;
D O I：
10.1109/TASC.2002.1018488
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Transient normal-transitions have been observed in the superconducting helical coils of LHD. Propagation of a normal-zone is analyzed with a numerical simulation code that deals with magnetic diffusion process in a pure aluminum stabilizer. During excitation tests, a number of spike signals are observed in the balance voltage of the helical coils, which seem to be caused by mechanical disturbances. The spike signals are analyzed by applying pulse height analysis (PHA), and the mechanical properties of the coil windings are investigated.
引用
收藏
页码：662 / 665
页数：4
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