Energy correction for the BGO calorimeter of DAMPE using an electron beam

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Zhi-Ying Li, Zhi-Yong Zhang, Yi-Feng Wei, Chi Wang, Yun-Long Zhang, Si-Cheng Wen, Xiao-Lian Wang, Zi-Zong Xu and Guang-Shun Huang. Energy correction for the BGO calorimeter of DAMPE using an electron beam[J]. Chinese Physics C, 2016, 40(8): 086202. doi: 10.1088/1674-1137/40/8/086202
Zhi-Ying Li, Zhi-Yong Zhang, Yi-Feng Wei, Chi Wang, Yun-Long Zhang, Si-Cheng Wen, Xiao-Lian Wang, Zi-Zong Xu and Guang-Shun Huang. Energy correction for the BGO calorimeter of DAMPE using an electron beam[J]. Chinese Physics C, 2016, 40(8): 086202.  doi: 10.1088/1674-1137/40/8/086202 shu
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Received: 2015-11-09
Revised: 2016-04-29
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    Supported by the Chinese 973 Program (2010CB833002), the Strategic Priority Research Program on Space Science of the Chinese Academy of Science (XDA04040202-4) and 100 Talents Program of CAS

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Energy correction for the BGO calorimeter of DAMPE using an electron beam

    Corresponding author: Zhi-Ying Li,
    Corresponding author: Zhi-Yong Zhang,
    Corresponding author: Yun-Long Zhang,
    Corresponding author: Guang-Shun Huang,
  • 1. State Key Laboratory of Particle Detection and Electronics, 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
Fund Project:  Supported by the Chinese 973 Program (2010CB833002), the Strategic Priority Research Program on Space Science of the Chinese Academy of Science (XDA04040202-4) and 100 Talents Program of CAS

Abstract: The DArk Matter Particle Explorer is an orbital indirect dark matter search experiment which measures the spectra of photons, electrons and positrons originating from deep space. The electromagnetic calorimeter (ECAL), made of bismuth germinate (BGO), is one of the key sub-detectors of DAMPE, and is designed for energy measurement with a large dynamic range from 5 GeV to 10 TeV. In this paper, methods for energy correction are discussed, in order to reconstruct the primary energy of the incident electrons. Different methods are chosen for the appropriate energy ranges. The correction results of Geant4 simulation and beam test data (at CERN) are presented.

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