| Study of linearity for a high dynamic range calorimeter |
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| 作者姓名： | 项天 金西 董家宁 张云龙 许咨宗 刘树彬 安琪 |
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| 作者单位： | 1 Department of Physics, University of Science and Technology of China, Hefei 230026, China;;2 Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China |
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| 基金项目： | Supported by Strategic Priority Research Program of Chinese Academy of Science(XDA04040202-4) |
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| 摘 要： | A high dynamic range calorimeter has been designed for the DArk Matter Particles Explore(DAMPE) satellite. It consists of 308 BGO crystals, multi-dynode readout PMTs and front end electronics system. We have built on previous research to show that BGO fluorescence should not be saturated by high electron energy density under DAMPE's energy range. A BGO fluorescence simulator is set up to calibrate the energy range of the dynodes, while a cosmic-ray unit is used to calibrate 1 MIP with the ADC count in dynode 8. Linearity is achieved for the dynamic range from 0.5 MIPs to 1.26×105MIPs. The requirements of DAMPE can thus be satisfied.
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| 关 键 词： | DAMPE BGO calorimeter PMT LED high dynamic |
| 收稿时间： | 2013-5-6 |
| 修稿时间： | 2013-8-29 |
Study of linearity for a high dynamic range calorimeter |
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| Abstract: | |
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| Keywords: | DAMPE BGO calorimeter PMT LED high dynamic |
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