THERMAL MAGNETIC NOISE OF DEWARS FOR BIOMAGNETIC MEASUREMENTS

被引：16

作者：

KASAI, N

SASAKI, K

KIRYU, S

SUZUKI, Y

机构：

[1] SHIMADZU CO LTD,KYOTO,JAPAN

[2] TOYO SANSO CO LTD,KAWASAKI,KANAGAWA,JAPAN

来源：

CRYOGENICS | 1993年 / 33卷 / 02期

关键词：

CRYOSTATS; THERMAL NOISE; BIOMAGNETISM;

D O I：

10.1016/0011-2275(93)90132-8

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The thermal magnetic noise of three Dewars with different structures was measured using a d.c. SQUID magnetometer and the contributions from the metallic conductors in the bottom and in the side vacuum spaces were estimated. It is concluded that the axial component of the thermal magnetic noise of a Dewar is mainly caused by the conductors in the bottom space and the magnitude of thermal noise is determined by the total amount of conductor.

引用

页码：175 / 179

页数：5

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