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Environmental test of the BGO calorimeter for DArk Matter Particle Explorer
Hu YM(胡一鸣); Chang J(常进); Chen DY(陈灯意); Guo JH(郭建华); Zhang YL(张云龙); Feng CQ(封常青)
2016
发表期刊Chinese Physics. C
卷号40期号:11页码:0
摘要DArk Matter Particle Explorer (DAMPE) is the first Chinese astronomical satellite, successfully launched on Dec. 17 2015. As the most important payload of DAMPE, the BGO calorimeter contains 308 bismuth germanate crystals, with 616 photomultiplier tubes, one coupled to each end of every crystal. Environmental tests have been carried out to explore the environmental adaptability of the flight model of the BGO calorimeter. In this work we report the results of the vibration tests. During the vibration tests, no visible damage occurred in the mechanical assembly. After random or sinusoidal vibrations, the change of the first order natural frequency of BGO calorimeter during the modal surveys is less than 5%. The shift ratio of Most Probable Value of MIPs changes in cosmic-ray tests are shown, the mean value of which is about -4%. The comparison of results of cosmic-ray tests before and after the vibration shows no significant change in the performance of the BGO calorimeter. All these results suggest that the calorimeter and its structure have passed through the environment tests successfully.
文献类型期刊论文
条目标识符http://libir.pmo.ac.cn/handle/332002/17032
专题暗物质和空间天文实验室
推荐引用方式
GB/T 7714
Hu YM,Chang J,Chen DY,et al. Environmental test of the BGO calorimeter for DArk Matter Particle Explorer[J]. Chinese Physics. C,2016,40(11):0.
APA 胡一鸣,常进,陈灯意,郭建华,张云龙,&封常青.(2016).Environmental test of the BGO calorimeter for DArk Matter Particle Explorer.Chinese Physics. C,40(11),0.
MLA 胡一鸣,et al."Environmental test of the BGO calorimeter for DArk Matter Particle Explorer".Chinese Physics. C 40.11(2016):0.
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