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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. LI T P, WU M. AP SS, 1993, 206: 91-1022. Rothschild R E, Pelling M R, Gruber D E et al. SPIE EUV,X-Ray, and Gamma-Ray Insirumenaiion for Asironomy and Aiomic Physics, 1989, 1159: 139-1553. Pelling M R, Rothschild R E, MacDonald D R et al. SPIEEUV, X-ray, and Gamma-Ray Instrumentation for Astronomy and Atomic Physics, 1991, 1549: 134-1464. Olsen et al. Earth, Planets and Space, 2000, 52: 1175-11825. DONG Yong-Wei, WU Bo-Bing, LI Yan-Guo et al. HEP NP, 2006, 30(5): 392-397(in Chinese)(董永伟, 吴伯冰, 李延国等. 高能物理与核物理, 2006, 30(5):392-397)6. ZHANG Y J. Hard X-ray Modulation Telescope and Data Analysis. 2005. 43-47(in Chinese)(张永杰. 硬X射线调制望远镜HXMT及数据分析. 2005. 43-47)

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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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