PoS - Proceedings of Science
Volume 444 - 38th International Cosmic Ray Conference (ICRC2023) - Gamma-ray Astronomy (GA)
Acceptance of the GRAPES-3 experiment towards gamma-ray showers
B.P. Pant*, M. Chakraborty, S.R. Dugad, U.D. Goswami, S.K. Gupta, B. Hariharan, Y. Hayashi, P. Jagadeesan, A. Jain, P. Jain, S. Kawakami, H. Kojima, S. Mahapatra, P.K. Mohanty, R. Moharana, Y. Muraki, P.K. Nayak, T. Nonaka, A. Oshima, D. Pattanaik, M. Rameez, K. Ramesh, L.V. Reddy, S. Shibata, F. Varsi and M. Zuberiet al. (click to show)
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Pre-published on: July 25, 2023
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Compared to satellites and balloon-borne experiments, ground based air shower detectors enjoy larger fields-of-view and higher effective areas, making them ideal for studies of gamma rays above TeV energies. The Gamma Ray Astronomy at PeV EnergieS Phase-3 (GRAPES-3) experiment is an extensive air shower (EAS) array located in Ooty, India, with $\sim$400 densely packed scintillator detectors accompanied by a 560 m$^2$ muon telescope. With the recent improvement in the angular resolution and an effective background rejection efficiency, the GRAPES-3 experiment has an excellent ability to study gamma-ray sources in the ultra-high energy (UHE) regime. In this work, we will present the acceptance of the GRAPES-3 towards gamma-ray-initiated showers, studied using CORSIKA simulated data.
DOI: https://doi.org/10.22323/1.444.0934
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