Simulations of expected signal and background of gamma-ray sources by large field-of-view detectors aboard CubeSats

In recent years, the number of CubeSats (U-class spacecrafts) launched into space has increased exponentially marking dawn nanosatellite technology. general, these satellites have a much smaller mass budget compared to conventional scientific satellites, which limits shielding instruments against direct and indirect radiation in space. We present simulation framework quantify signal large field-of-view gamma-ray scintillation detectors induced by x-ray/gamma-ray transients, taking account response detector. Furthermore, we x-ray particle background sources at Low-Earth Orbit outside South Atlantic Anomaly polar regions. Finally, calculate signal-to-noise ratio (SNR) different energy threshold levels. Our can be used optimize material composition predict detectability various astrophysical CubeSats. apply developed satellite belonging planned CAMELOT CubeSat constellation. This project mainly aims detect short long bursts (GRBs) as secondary science objective, soft repeaters (SGRs) terrestrial flashes (TGFs). The includes detailed computer-aided design model take interaction particles with accurately possible. Results our simulations that complement observatories high-energy astrophysics for observations GRBs, SGRs, TGFs. For on board CubeSats, show detections SNR least 9 median GRB SGR fluxes are achievable.