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A 2ND-ORDER SQUID GRADIOMETER OPERATING AT 77-K

被引：59
作者：
TAVRIN, Y
ZHANG, Y
WOLF, W
BRAGINSKI, AI
机构：
[1] Inst. fur Schicht- und Ionentechnik, Forschungszentrum Julich GmbH
来源：
SUPERCONDUCTOR SCIENCE & TECHNOLOGY | 1994年 / 7卷 / 05期
关键词：
D O I：
10.1088/0953-2048/7/5/009
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We describe a portable second-order electronic SQUID gradiometer cooled with liquid nitrogen and capable of operating in unshielded space. The measured magnetic-field resolution is <300 fT Hz-1/2 and < 170 fT Hz-1/2 when operating in the first-order mode. The gradiometer was successfully used for the recording of screening magnetocardiograms of over 200 human subjects at four different geographic locations.
引用
收藏
页码：265 / 268
页数：4
相关论文
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