Bulg. J. Phys. vol.48 no.1 (2021), pp. 070-077

Compact Scintillator Detector for Sub-MeV and MeV Gamma-Ray Astronomy

Zh. Toneva, S. Ivanov, S. Lalkovski
Faculty of Physics, St. Kl. Ohridski University of Sofia, 5 James Bourchier Boulevard, BG-1164 Sofia, Bulgaria
Abstract. Gamma-ray energy and direction measurement have played an essential role in many fields such as astrophysics, medical physics and homeland security. With new technological developments, the available methods can achieve better scientific output. For example, using a new concept of an instrument with position sensitive-scintillation detector, based on monolithic scintillator and multi-pixel photo-sensor, one can improve the current knowledge in gamma-ray imaging. This study covers a research of instrument which is able to perform spectroscopy and imaging while maintaining small dimensions compared to modern solutions. We report here results on our conceptual design of a compact position-sensitive scintillator detector for sub-MeV and MeV gamma-ray energy range. Simulations via Geant4 toolkit data for efficiency and single Compton event distributions are presented and discussed.

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