FIELD STABILIZATION OF A SUPERCONDUCTING MAGNET BY HELIUM PRESSURE CONTROL

被引：6
|
作者：
BRUNNER, S
ENGEL, T
WERTH, G
机构：
[1] Inst. fur Phys., Mainz Univ.
来源：
MEASUREMENT SCIENCE AND TECHNOLOGY | 1995年 / 6卷 / 02期
关键词：
D O I：
10.1088/0957-0233/6/2/015
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Fluctuations and drifts of the magnetic field of superconducting solenoids are at present the main limitation in the precision of Penning ion trap mass spectrometers. Stabilities up to 10(-11) h(-1) are required to exploit fully the inherent possibilities of the method. Here we discuss possible reasons for these instabilities and demonstrate substantial improvement in stability upon stabilizing the temperature of the cryostat by helium gas pressure control. The improvement is about two orders in magnitude relative to the case of an unstabilized magnet.
引用
收藏
页码：222 / 226
页数：5
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