Alternating magnetic field shielding of YBCO tubes in static field

被引：0
|
作者：
Lee, Soonchil [1 ]
Go, Youngjo [1 ]
Won, Dongyeon [1 ]
Hong, Gyewon [1 ]
Kwon, Sunchil [1 ]
机构：
[1] Dep of Physics, Daejon, Korea, Republic of
来源：
Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers | 1994年 / 33卷 / 7 A期
关键词：
Cooling - Electron tubes - Magnetic fields - Magnetic properties - Magnetic shielding - Nuclear magnetic resonance - Spectrometers - Superconducting magnets - Yttrium compounds;
D O I：
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学科分类号：
摘要：
The alternating magnetic field shielding efficiency of a YBCO tube was measured in a static field of up to 1 kG, bearing the possibility of its application as a field regulator in mind. The shielding efficiency is higher when the sample is field-cooled than when it is zero-field-cooled, as predicted by the critical state model. In the case of field cooling, the tube still shields about 25% of ac field of 1 kHz even in 500 G dc field. Shielding efficiency monotonously increases with increasing frequency from 10 Hz to 1 kHz.
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页码：3889 / 3891
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