COCOA: a compact Compton camera for astrophysical observation of MeV-scale gamma rays
arXiv:2502.20916 · doi:10.1016/j.astropartphys.2025.103135
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.
14 pages, 17 figures
References in corpus (32)
- The Large Area Telescope on the Fermi Gamma-ray Space Telescope Mission
- Multi-messenger Observations of a Binary Neutron Star Merger
- The e-ASTROGAM mission (exploring the extreme Universe with gamma rays in the MeV-GeV range)
- SPI/INTEGRAL in-flight performance
- Theia: An advanced optical neutrino detector
- Characterization of Large Volume 3.5 x 8 inches LaBr3:Ce Detectors
- Dual MeV Gamma-Ray and Dark Matter Observatory -- GRAMS Project
- Event reconstruction in high resolution Compton telescopes
- Indirect Detection of Dark Matter Using MeV-Range Gamma-Ray Telescopes
- Determination of the Point-Spread Function for the Fermi Large Area Telescope from On-orbit Data and Limits on Pair Halos of Active Galactic Nuclei
- Background for a gamma-ray satellite on a low-Earth orbit
- A fully active fine grained detector with three readout views
- Compton Imaging of MeV Gamma-Rays with the Liquid Xenon Gamma-Ray Imaging Telescope (LXeGRIT)
- The Compton Spectrometer and Imager
- SoLid: A short baseline reactor neutrino experiment
- Neutrino Physics with an Opaque Detector
- A complete optical model for liquid-scintillator detectors
- The development of ground-based Gamma-ray astronomy: a historical overview of the pioneering experiments
- Multiwavelength Astronomy and CTA: X-rays
- Cherenkov and Scintillation Light Separation Using Wavelength in LAB Based Liquid Scintillator
- Introducing the MeVCube concept: a CubeSat for MeV observations
- The MEGA Advanced Compton Telescope Project
- Review of Novel Approaches to Organic Liquid Scintillators in Neutrino Physics
- Novel Opaque Scintillator for Neutrino Detection
- Characterization of a radiation detector based on opaque water-based liquid scintillator
- Prospects and requirements of opaque detectors in accelerator neutrino experiments
- MeV Gamma-Ray Source Contribution to the Inner Galactic Diffuse Emission
- COMPTEL data analysis using GammaLib and ctools
- Combining Hybrid and Opaque Scintillator Techniques in the Search for Double Beta Plus Decays
- Neutrino-Antineutrino Identification in a Liquid Scintillator Detector: Towards a Novel Decay-at-Rest-based Neutrino CPV Framework
- A hybrid organic/inorgaic scintillator for high performance measurements
- The GammaTPC Gamma-Ray Telescope Concept