HXMT Magnetic Shield Design and Test Results

DONG Yong-Wei; XIONG Shao-Lin; LI Yan-Guo; ZHANG Yong-Jie; WU Bo-Bing; HE Hui-Lin

Chinese Physics C> 2007, Vol. 31> Issue(1) : 80-83

HXMT Magnetic Shield Design and Test Results

Institute of High Energy Physics, CAS, Beijing 100049, China2 Graduate University of Chinese Academy of Sciences, Beijing 100049, China

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Abstract：
We present the results of experiments on the passive magnetic shield for HXMT main detectors. The magnetic shielding case made of permalloy reduces the maximum gain variations of detectors to 6% on the ground. Together with the automatic gain control system, the magnetic shield system will limit the gain variations of in-flight detectors to 1%, and limit the background variations to 0.1%.

References

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DONG Yong-Wei, XIONG Shao-Lin, LI Yan-Guo, ZHANG Yong-Jie, WU Bo-Bing and HE Hui-Lin. HXMT Magnetic Shield Design and Test Results[J]. Chinese Physics C, 2007, 31(1): 80-83.

DONG Yong-Wei, XIONG Shao-Lin, LI Yan-Guo, ZHANG Yong-Jie, WU Bo-Bing and HE Hui-Lin. HXMT Magnetic Shield Design and Test Results[J]. Chinese Physics C, 2007, 31(1): 80-83. shu

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Received: 2006-03-17
Revised: 2006-05-08

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沈阳化工大学材料科学与工程学院沈阳 110142

HXMT Magnetic Shield Design and Test Results

Corresponding author: DONG Yong-Wei,

Institute of High Energy Physics, CAS, Beijing 100049, China2 Graduate University of Chinese Academy of Sciences, Beijing 100049, China

Received Date: 2006-03-17
Accepted Date: 2006-05-08
Available Online: 2007-01-05

Abstract: We present the results of experiments on the passive magnetic shield for HXMT main detectors. The magnetic shielding case made of permalloy reduces the maximum gain variations of detectors to 6% on the ground. Together with the automatic gain control system, the magnetic shield system will limit the gain variations of in-flight detectors to 1%, and limit the background variations to 0.1%.