COCOA: a compact Compton camera for astrophysical observation of MeV-scale gamma rays

2025/02/28 by LiquidO Collaboration, Soleti, S. R., Gómez-Cadenas, J. J. +89 · 2 citations
#FOS: Physical sciences #Instrumentation and Detectors (physics.ins-det) #Instrumentation and Methods for Astrophysics (astro-ph.IM)

paper · doi:10.48550/arxiv.2502.20916

Abstract

COCOA (COmpact COmpton cAmera) is a next-generation gamma-ray telescope designed for astrophysical observations in the MeV energy range. The detector comprises a scatterer volume employing the LiquidO detection technology and an array of scintillating crystals acting as absorber. Surrounding plastic scintillator panels serve as a veto system for charged particles. The detector's compact, scalable design enables flexible deployment on microsatellites or high-altitude balloons. Gamma rays at MeV energies have not been well explored historically (the so-called "MeV gap") and COCOA has the potential to improve the sensitivity in this energy band.

Cited by

• Muon tracking in a LiquidO opaque scintillator detector
• Gamma rays as a signature of r-process producing supernovae: remnants and future Galactic explosions

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