Journal
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
Volume 868, Issue -, Pages 10-14Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.nima.2017.06.042
Keywords
AMS; TRD; Transition radiation; Geant4; PAI model
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Funding
- JARA-HPC from RWTH Aachen University [jara0052]
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The Transition Radiation Detector of the AMS-02 experiment on the International Space Station is used for the separation of cosmic-ray positrons and electrons from protons and anti-protons, and for the identification of nuclei up to carbon (Z <= 6). We present the Geant4 simulation that is used to describe the ionization and transition radiation processes and compare its results to flight data from AMS-02. After applying empirical corrections to the simulated data, the particle energy deposition and likelihood distributions in the TRD are described with high accuracy. (C) 2017 Elsevier B.V. All rights reserved.
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