GAMMA-IRRADIATION EFFECT ON THE TRANSPORT CRITICAL CURRENT-DENSITY OF A BI1.5PB0.5SR2CA2CU3OX CERAMIC

被引：3
|
作者：
SHIRAISHI, K [1 ]
SAKAMOTO, H [1 ]
YANO, K [1 ]
OTOGURO, Y [1 ]
机构：
[1] GUNMA UNIV,FAC ENGN,KIRYU,GUNMA 376,JAPAN
来源：
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS | 1992年 / 31卷 / 3A期
关键词：
SUPERCONDUCTOR; (BI; PB)2SR2CA2CU3OX; CERAMIC; GAMMA IRRADIATION; TRANSPORT; CRITICAL CURRENT; MAGNETIC FIELD;
D O I：
10.1143/JJAP.31.L227
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
A Bi1.5Pb0.5Sr2Ca2Cu3Ox ceramic was sequentially irradiated with Co-60 gamma-rays at a dose rate of 2.0 MR.h-1 up to a dose of 24 MR at ambient temperature, and the transport critical current density was measured as a function of temperature. The critical current density in zero field was decreased by 2 MR irradiation at temperatures below 65 K, and the radiation effect was more prominent at lower temperature. The radiation effect was enhanced and extended to higher temperature upon further irradiation; the decrease in the critical current density was apparent at temperatures below 77 K after gamma-irradiation to 24 MR.
引用
收藏
页码：L227 / L230
页数：4
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