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.

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页码：L227 / L230

页数：4

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