摘要
The major scientific goals of the DArk Matter Particle Explorer(DAMPE)are to study cosmicray electrons(including positrons)and gamma rays from 5 GeV to 10 TeV and nuclei from Z=1 to 26 up to 100 TeV.The deposited energy measured by the Bismuth Germanate Oxide(BGO)calorimeter of DAMPE is affected by fluorescence attenuation in BGO crystals that are 600 mm long.In this work,an in-orbit attenuation calibration method is reported,and energy correction of the sensitive detector unit of the BGO calorimeter is also presented.
基金
the project the Joint Funds of the National Natural Science Foundation of China(Nos.U1738135,U1738208 and U1738139)
the National Natural Science Foundation of China(Nos.11673021 and 11705197)
the National Key Research and Development Program of China(2016YFA0400200 and 2016YFA0400202)。
