PoS - Proceedings of Science
Volume 444 - 38th International Cosmic Ray Conference (ICRC2023) - Cosmic-Ray Physics (Direct, CRD)
Development of Transition Radiation Detector for HERD
C. Dai
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Pre-published on: September 09, 2023
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The Transition Radiation Detector (TRD) plays a vital role as an integral component of the High Energy cosmic-Radiation Detection (HERD) facility, a scientific payload designed for measuring cosmic rays. HERD is scheduled to be installed on the China Space Station in 2027 and comprises five sub-detectors. One of these sub-detectors is the TRD, which will facilitate energy cross-calibration with the calorimeter in the TeV energy range. During the development and evaluation of the TRD, two prototypes were created and assessed using electron beams sourced from CERN and DESY. The measurement of transition radiation photon yields was conducted using various regular radiators, revealing a noteworthy signal of transition radiation for Lorentz factor $\gamma$ greater than 2000. Leveraging the beam test data, we constructed a Monte Carlo (MC) simulator to optimize the TRD design. This presentation will delve into the TRD design, laboratory and beam tests, simulations, and the corresponding results obtained from our research.
DOI: https://doi.org/10.22323/1.444.0113
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