Flux Instabilities in High Field Superconducting Wires
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概要
- 論文の詳細を見る
The magnetic flux instability is investigated in Nb-25% Zr wires, 0.25mm in diameter, and the low field instability is found to be an intrinsic phenomenon of high field superconducting wires. The flux Jump is induced artificially by an anplication of the heat pulse and the magnetic field pulse. The stability is represented quantitatively by a minimum power of the pulse P_c at which the superconductor quenches into a normal state. The critical power P_c reduces discontinuously above a certain current, the threshold current I_t. Threshold current I_t and P_c depend on the history of the field-current application. The stability at the current above I_t increases with increasing ambient magnetic field and with decreasing critical current. Partial flux jump is induced above a certain current I_f below I_t. The detailed structure of the distribution of the magnetic induction in the sample plays an important rote in the stability.
- 社団法人応用物理学会の論文
- 1970-08-05
著者
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Yasukochi Ko
Department Of Physics College Of Science And Engineering Nihon University
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Yasukochi Ko
Department Of Physics And Atomic Energy Research Institute College Of Science And Engineering Nihon
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Kobayashi Hisayasu
Department Of Physics College Of Science And Engineering Nihon University
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Ogasawara Takeshi
Department Of Biotechnology Faculty Of Technology Tokyo University Of Agriculture And Technology
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