A Method of Alignment for Plastic Scintillator Detector of DAMPE

被引：0
|
作者：
Ma, PengXiong [1 ,2 ]
机构：
[1] Chinese Acad Sci, Key Lab Dark Matter & Space Astron, Purple Mt Observ, Nanjing 210034, Peoples R China
[2] Univ Sci & Technol China, Sch Astron & Space Sci, Hefei 230026, Peoples R China
来源：
36TH INTERNATIONAL COSMIC RAY CONFERENCE, ICRC2019 | 2021年
基金：
中国国家自然科学基金; 瑞士国家科学基金会;
关键词：
D O I：
暂无
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
DArk Matter Particle Explorer (DAMPE, also known asWukong) is a satellite-borne high-energy particle detector launched on December 17th, 2015. DAMPE focuses on the indirect detection of dark matter and the study of high-energy astrophysics by means of spectral measurement of cosmic ray nuclei, electrons, and photons. It consists of four sub-detectors, of which the Plastic Scintillator Detector (PSD) lays on the top. The PSD, consisting of 82 bars, plays an important role in the charge (Z) measurement of cosmic rays and also acts as a veto of gamma-ray identification. In this contribution we describe a method for alignment correction of each bar of the PSD using the minimum ionization particle (MIP) spectrum. The charge resolution is improved by similar to 4% after the alignment correction
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页数：8
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