TY - JOUR
T1 - Simulation of the instrument performance of the Antarctic Demonstrator for the Advanced Particle-astrophysics Telescope in the presence of the MeV background
AU - APT Collaboration
AU - Chen, Wenlei
AU - Buckley, James H.
AU - Altomare, Corrado
AU - Andrew, Matthew
AU - Bal, Blake
AU - Bose, Richard G.
AU - Braun, Dana
AU - Buckley, James H.
AU - Buhler, Jeremy
AU - Burns, Eric
AU - Chamberlain, Roger D.
AU - Chen, Wenlei
AU - Cherry, Michael L.
AU - Di Venere, Leonardo
AU - Dumonthier, Jeffrey
AU - Errando, Manel
AU - Funk, Stefan
AU - Ghosh, Priya
AU - Giordano, Francesco
AU - Hoffman, Jonah
AU - Htet, Ye
AU - Hughes, Zachary
AU - Jung, Aera
AU - Kelly, Patrick L.
AU - Krizmanic, John F.
AU - Kuwahara, Makiko
AU - Licciulli, Francesco
AU - Liu, Gang
AU - Lorusso, Leonarda
AU - Mazziotta, Mario Nicola
AU - Mitchell, John Grant
AU - Mitchell, John W.
AU - de Nolfo, Georgia A.
AU - Panzarini, Giuliana
AU - Peschke, Richard
AU - Paoletti, Riccardo
AU - Pillera, Roberta
AU - Rauch, Brian
AU - Serini, Davide
AU - Simburger, Garry
AU - Sudvarg, Marion
AU - Suarez, George
AU - Tatoli, Teresa
AU - Varner, Gary S.
AU - Wulf, Eric A.
AU - Zink, Adrian
AU - Zober, Wolfgang V.
N1 - Publisher Copyright:
© Copyright owned by the author(s) under the terms of the Creative Commons.
PY - 2024/9/27
Y1 - 2024/9/27
N2 - The Advanced Particle-astrophysics Telescope (APT) is a mission concept of a next-generation space-based gamma-ray and cosmic-ray observatory. We present the simulation of the instrument performance of the Antarctic Demonstrator for APT (ADAPT), a proposed long-duration balloon instrument based on a small portion of the full APT detector. We construct a semianalytical model of the MeV-GeV background for ADAPT based on observations from previous high-altitude balloon experiments and simulations of the upper atmosphere. We find that the ADAPT background is dominated by the gamma-ray albedo of the earth’s atmosphere. In the presence of this background, we simulate a detector design based on a 45 cm × 45 cm detector composed of 8 thin layers of CsI:Na scintillators. We develop and optimize reconstruction algorithms for gamma-rays from a few hundreds of keV up to a few GeV energies. We present results of a complete off-line analysis to derive the best reconstruction methods. At photon energies from 30 MeV to a few GeV, ADAPT could provide degree-level to sub-degree-level observations of galactic and extragalactic gamma-rays with an effective area of above 0.05 m2. In the MeV regime, our simulation shows that ADAPT can achieve a degree-level localization accuracy for gamma-ray bursts down to about 1 MeV/cm2 in the presence of the gamma-ray and cosmic-ray background. ADAPT would be able to detect a few GRBs during the planned Antarctic balloon flight.
AB - The Advanced Particle-astrophysics Telescope (APT) is a mission concept of a next-generation space-based gamma-ray and cosmic-ray observatory. We present the simulation of the instrument performance of the Antarctic Demonstrator for APT (ADAPT), a proposed long-duration balloon instrument based on a small portion of the full APT detector. We construct a semianalytical model of the MeV-GeV background for ADAPT based on observations from previous high-altitude balloon experiments and simulations of the upper atmosphere. We find that the ADAPT background is dominated by the gamma-ray albedo of the earth’s atmosphere. In the presence of this background, we simulate a detector design based on a 45 cm × 45 cm detector composed of 8 thin layers of CsI:Na scintillators. We develop and optimize reconstruction algorithms for gamma-rays from a few hundreds of keV up to a few GeV energies. We present results of a complete off-line analysis to derive the best reconstruction methods. At photon energies from 30 MeV to a few GeV, ADAPT could provide degree-level to sub-degree-level observations of galactic and extragalactic gamma-rays with an effective area of above 0.05 m2. In the MeV regime, our simulation shows that ADAPT can achieve a degree-level localization accuracy for gamma-ray bursts down to about 1 MeV/cm2 in the presence of the gamma-ray and cosmic-ray background. ADAPT would be able to detect a few GRBs during the planned Antarctic balloon flight.
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M3 - Conference article
AN - SCOPUS:85212308824
SN - 1824-8039
VL - 444
JO - Proceedings of Science
JF - Proceedings of Science
M1 - 841
T2 - 38th International Cosmic Ray Conference, ICRC 2023
Y2 - 26 July 2023 through 3 August 2023
ER -