Correction Method for the Readout Saturation of the DAMPE Calorimeter

Abstract

The DArk Matter Particle Explorer (DAMPE) is a space-borne high energy cosmic-ray and $\gamma$-ray detector which operates smoothly since the launch on December 17, 2015. The bismuth germanium oxide (BGO) calorimeter is one of the key sub-detectors of DAMPE used for energy measurement and electron proton identification. For events with total energy deposit higher than decades of TeV, the readouts of PMTs coupled on the BGO crystals would become saturated, which results in an underestimation of the energy measurement. Based on detailed simulations, we develop a correction method for the saturation effect according to the shower development topologies and energies measured by neighbouring BGO crystals. The verification with simulated and on-orbit events shows that this method can well reconstruct the energy deposit in the saturated BGO crystal.

arXiv comment17 pages, 9 figures, to be published in Nuclear Inst. and Methods in Physics Research, A

References in corpus (24)

• Cosmic-ray propagation and interactions in the Galaxy
• Direct detection of a break in the teraelectronvolt cosmic-ray spectrum of electrons and positrons
• The DArk Matter Particle Explorer mission
• Measurement of the cosmic-ray proton spectrum from 40 GeV to 100 TeV with the DAMPE satellite
• Proton and Helium Spectra from the CREAM-III Flight
• The origin of Galactic cosmic rays: challenges to the standard paradigm
• Direct Measurement of the Cosmic-Ray Proton Spectrum from 50 GeV to 10 TeV with the Calorimetric Electron Telescope on the International Space Station
• Cosmic Ray Transport in the Galaxy: a Review
• A new universal cosmic-ray knee near the magnetic rigidity 10 TV with the NUCLEON space observatory
• The Plastic Scintillator Detector at DAMPE
• The calibration and electron energy reconstruction of the BGO ECAL of the DAMPE detector
• The on-orbit calibration of DArk Matter Particle Explorer
• Charge Measurement of Cosmic Ray Nuclei with the Plastic Scintillator Detector of DAMPE
• Interpretations of the DAMPE electron data
• Dark Matter Particle Explorer observations of high-energy cosmic ray electrons plus positrons and their physical implications
• Internal alignment and position resolution of the silicon tracker of DAMPE determined with orbit data
• Calibration and performance of the neutron detector onboard of the DAMPE mission
• Implications on the origin of cosmic rays in light of 10 TV spectral softenings
• A Parameterized Energy Correction Method for Electromagnetic Showers in BGO-ECAL of DAMPE
• A Method of Alignment of the Plastic Scintillator Detector of DAMPE
• Calibration of the DAMPE Plastic Scintillator Detector and its on-orbit performance
• An algorithm to resolve γ-rays from charged cosmic rays with DAMPE
• In-flight performance of the DAMPE silicon tracker
• DmpIRFs and DmpST: DAMPE Instrument Response Functions and Science Tools for Gamma-Ray Data Analysis

Cited by in corpus (8)

• Measurement of the cosmic ray helium energy spectrum from 70 GeV to 80 TeV with the DAMPE space mission
• Detection of spectral hardenings in cosmic-ray boron-to-carbon and boron-to-oxygen flux ratios with DAMPE
• A deep learning method for the trajectory reconstruction of cosmic rays with the DAMPE mission
• Measurement of the cosmic p+He energy spectrum from 50 GeV to 0.5 PeV with the DAMPE space mission
• Development of the photo-diode subsystem for the HERD calorimeter double-readout
• Machine learning-based method of calorimeter saturation correction for helium flux analysis with DAMPE experiment
• Investigation of hadronic cross sections of cosmic ray carbon and oxygen on BGO from 200 GeV to 10 TeV energy at the DAMPE experiment
• Machine-learning correction for the calorimeter saturation of cosmic-ray ions with the Dark Matter Particle Explorer: towards the PeV scale