APPARATUS FOR MEASUREMENT OF SURFACE-RESISTANCE VERSUS RF MAGNETIC-FIELD OF HIGH-TC SUPERCONDUCTORS

被引：13

作者：

DELAYEN, JR

BOHN, CL

ROCHE, CT

机构：

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 1990年 / 61卷 / 08期

关键词：

D O I：

10.1063/1.1141390

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A coaxial niobium quarter-wave resonant cavity has been fabricated and used for measurement of the surface resistance of disk-shaped samples of high-T c superconductors at 820 MHz and 4.2 K, and at surface rf magnetic fields ranging to 300 G. The cavity can accommodate samples as large as 36 mm in diameter. A measurement procedure has been developed with which rf surface resistances less than 20 μΩ can be resolved for a 24-mm-diam sample at 820 MHz. This cavity is useful in determining the suitability of high-T c superconductors for high-power rf applications.

引用

页码：2207 / 2210

页数：4

共 8 条

[1] APPLICATION OF RF SUPERCONDUCTORS TO LINACS FOR HIGH-BRIGHTNESS PROTON-BEAMS [J].