A charge reconstruction algorithm for DAMPE silicon microstrip detectors

Giovanni Marsella, Rui-Rui Fan, Pelleriti, Ionica, Xiao-Hua Liang, Bruna Bertucci, Fusco, Jin-Zhou Wang, Mazziotta, Wen-Xi Peng, Cadoux, Duranti, Asfandiyarov, Gallo, Tykhonov, Loparco, Husi, Huan-Yu Wang, Xing-Zhu Cui, Min GaoFei Zhang, Dong-Ya Guo, Bolognini, Ya-Qing Liu, Yi-Fan Dong, Gargano, Vitillo, Di Wu, Nicola, Domenjoz, Nardinocchi, Caprai, Jia-Wei Yang, Rui Qiao, Garrappa, Weber, Martin Pohl, Ke Gong, Wu, Guang-Qi Dai, La Marra, Giovanni Marsella, Postolache, Surdo, De Mitri, Bernardini, Giovanni Ambrosi, Hao Zhao, Azzarello

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Abstract

The DArk Matter Particle Explorer (DAMPE)can detect electrons and photons from 5 GeV to 10 TeV and charged nuclei from a few tens of GeV to 100 TeV. The silicon–tungstentracker (STK), which is composed of 768 singled-sided silicon microstrip detectors, is one of four subdetectors in DAMPE providing photon conversion, track reconstruction, and charge identification for relativistic charged particles. This paper focuses on the charge identification performance of the STK detector. The charge response depends mainly on the incident angle and the impact position of the incoming particle. To improve the charge resolution, a reconstruction algorithm to correct for these parameters was tested during a test beam campaign conducted with a high-intensity ion beam at CERN. This algorithm was successfully applied to the ion test beam and the ion charge of Z=4∼10 and was successfully reconstructed for both normal and 9°incident beams.
Original languageEnglish
Pages (from-to)24-29
Number of pages6
JournalNUCLEAR INSTRUMENTS AND METHODS IN PHYSICS RESEARCH. SECTION A, ACCELERATORS, SPECTROMETERS, DETECTORS AND ASSOCIATED EQUIPMENT
Volume935
Publication statusPublished - 2019

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Instrumentation

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