The sensitive unit calibration of the EM calorimeter for Dark Matter Particle Explorer in orbit

S.C. Wen,Y.F. Wei,Z.Y. Zhang,Y.L. Zhang,L.B. Wu,H.T. Dai,C.M. Liu, C. Zhao,Y. Wang,X.L. Wang,Z.Z. Xu,G.S. Huang,W. Jiang,Y.Q. Zhang,P.X. Ma,W.H. Li,C. Yue,P. Fusco,E. Casilli,A. Parenti

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment（2022）

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摘要

The bismuth germanium oxide (BGO) electromagnetic calorimeter, which is characterized by a large detection energy range of 5 GeV–10 TeV for high-energy cosmic-ray electrons/positrons (CREs) and γ-rays, is the key sub-detector of the Dark Matter Particle Explorer (DAMPE). A careful and comprehensive calibration is essential for conducting accurate detector energy measurement. In this study, we present a method based on the ATmospheric Muon Neutrino Calculation 3-dimensional version (ATMNC3) software package, which achieves a stable and homogeneous inter-calibration in orbit for the DAMPE calorimeter.

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关键词

DAMPE,BGO calorimeter,ATMNC3,In-orbit calibration,Geomagnetic rigidity

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