Estimation of the detected background by the future gamma-ray transient mission CAMELOT

Abstract

This study presents a background estimation for the Cubesats Applied for MEasuring and LOcalising Transients (CAMELOT), which is a proposed fleet of nanosatellites for the all-sky monitoring and timing based localization of gamma-ray transients with precise localization capability at low Earth orbits. CAMELOT will allow to observe and precisely localize short gamma-ray bursts (GRBs) associated with kilonovae, long GRBs associated with core-collapse massive stars, magnetar outbursts, terrestrial gamma-ray flashes, and gamma-ray counterparts to gravitational wave sources. The fleet of at least nine 3U CubeSats is proposed to be equipped with large and thin CsI(Tl) scintillators read out by multi-pixel photon counters (MPPC). A careful study of the radiation environment in space is necessary to optimize the detector casing, estimate the duty cycle due to the crossing of the South Atlantic Anomaly and polar regions, and to minimize the effect of the radiation damage of MPPCs.

arXiv comment8 pages, 6 pages, 2 tables, accepted in Astronomische Nachrichten, article ID: ASNA368

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Cited by in corpus (4)

• Modeling the in-orbit background of PolarLight
• Early results from GRBAlpha and VZLUSAT-2
• Lowering the Energy Threshold using a Plastic Scintillator and Radiation-Damaged SiPMs
• Characterization of more than three years of in-orbit radiation damage of SiPMs on GRBAlpha and VZLUSAT-2 CubeSats