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A high dynamic range readout unit for a calorimeter |
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| Authors: | ZHANG Yun-Long ; LI Bing FENG Chang-Qing LI Xian-Li WANG Xiao-Lian ; XU Zi-Zong GUO Jian-Hua CAI Ming-Sheng HU Yi-Ming WU Jian CHANG Jin |
| Institution: | 1 Department of Modern Physics,University of Science and Technology of China,Hefei 230026,China 2 Purple Mountain Observatory,Nanjing 210008,China |
| Abstract: | A high dynamic range readout system,consisting of a multi-dynode readout PMT and a VA32 chip,is presented.An LED system is set up to calibrate the relative gains between the dynodes,and the ADC counts per MIPs from dynode 7 are determined under cosmic-ray calibration.A dynamic range from 0.5 MIPs to 1×10 5 MIPs is achieved. |
| Keywords: | BGO calorimeter VA32 chip PMT LED high dynamic readout |
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