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Response of the BGO Calorimeter to Cosmic-Ray Nuclei in the DAMPE Experiment on Orbit
IEEE Transactions on Nuclear Science ( IF 1.9 ) Pub Date : 2020-05-08 , DOI: 10.1109/tns.2020.2992557
H. T. Dai , Y. L. Zhang , J. J. Zang , Z. Y. Zhang , Y. F. Wei , L. B. Wu , C. M. Liu , C. N. Luo , D. Kyratzis , A. De Benedittis , C. Zhao , Y. Wang , P. C. Jiang , Y. Z. Wang , Y. Z. Zhao , X. L. Wang , Z. Z. Xu , G. S. Huang

DArk Matter Particle Explorer (DAMPE), a satel- lite-based cosmic-ray (CR) and gamma-ray measurement experiment, relies on its calorimeter to measure the energy of incident particles. The calorimeter adopts crystals of bismuth germanium oxide (BGO) as scintillating material, and it is designed to aim for measurements of energy ranging from 50 GeV to 100 TeV in the case of a CR nucleus. This article concerns the response of the BGO calorimeter to nucleus-type CRs. CRs with very low energy can rarely reach the detector due to the Earth’s magnetic field. A cutoff on lower energy can be observed in the energy spectrum. In this article, the cutoff is used to study the response of the calorimeter. Carbon, neon, silicon, and iron are analyzed separately in comparison with Monte Carlo simulations by Geant4.

中文翻译:


轨道 DAMPE 实验中 BGO 热量计对宇宙射线核的响应



暗物质粒子探测器(DAMPE)是一个基于卫星的宇宙射线(CR)和伽马射线测量实验,依靠其量热计来测量入射粒子的能量。该热量计采用氧化铋锗(BGO)晶体作为闪烁材料,旨在测量CR核情况下50 GeV至100 TeV的能量。本文涉及 BGO 热量计对核型 CR 的响应。由于地球磁场的原因,能量非常低的 CR 很少能够到达探测器。在能谱中可以观察到较低能量的截止。在本文中,截止值用于研究热量计的响应。分别分析碳、氖、硅和铁,并与 Geant4 的蒙特卡罗模拟进行比较。
更新日期:2020-05-08
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