PoS - Proceedings of Science
Volume 395 - 37th International Cosmic Ray Conference (ICRC2021) - GAD - Gamma Ray Direct
Gamma-ray performance study of the HERD payload
L. Fariña*, L. Jouvin, J. Rico, N. Mori, F. Gargano, V. Formato, F. de Palma, C. Pizzolotto, J. Casaus, M.N. Mazziota, X. Wu, P. Bordas, D. Gascon, D. Simons, A. Tykhonov, C. Altomare, L. Silveri, D. Gasparrini  on behalf of the HERD collaboration
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Pre-published on: July 12, 2021
Published on: March 18, 2022
The High Energy cosmic-Radiation Detection (HERD) facility has been proposed as a space astronomy payload onboard the future China’s Space Station. HERD is planned for operation starting around 2027 for about 10 years In addition to the unprecedented sensitivity for dark matter searches and cosmic-ray measurements up to the knee energy, it should perform gamma-ray monitoring and full sky survey from few hundred si{MeV} up to tens of si{TeV}. We present the first study of the HERD gamma-ray performance obtained with full simulations of the whole detector geometry. HERD will be a cubic detector composed with 5 active faces. We present a study conducted inside the HERD analysis software package, which includes a detailed description of the detector materials. In this work we present the HERD effective area, the point spread function and the resulting gamma-ray sensitivity.
DOI: https://doi.org/10.22323/1.395.0651
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