{"paper":{"title":"COCOA: a compact Compton camera for astrophysical observation of MeV-scale gamma rays","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["physics.ins-det"],"primary_cat":"astro-ph.IM","authors_text":"A. Cabrera, A. Cadiou, A. Earle, A. Gibson-Foster, A. Holin, A. Kling, A. Pin, A. Serafini, A. S. Wilhelm, A. Verdugo, A. W. R. Wong, B. J. Cattermole, B. Roskovec, B. Viaud, C. Bourgeois, C. Frigerio Martins, C. Girard-Carillo, C. L. Baylis, C. Marquet, C. Palomares, C. Shepherd-Themistocleous, D. Breton, D. F. Cowen, D. Navas-Nicol\\'as, D. Petyt, D. Stocco, E. Calvo, E. Chauveau, E. F. Bannister, F. Haddad, F. Lefevre, F. Mantovani, F. Suekane, F. Yermia, G. Luz\\'on, G. Wendel, H. Nunokawa, I. G. Irastorza, I. Jovanovic, J. A. Garc\\'ia, J. A. Lock, J. Apilluelo, J. Busto, J. C. C. Porter, J. F. Le Du, J. Gal\\'an, J. G. Marques, J. Hartnell, J. J. G\\'omez-Cadenas, J. L. Beney, J. Maalmi, J. P. Malhado, J. P. Ochoa-Ricoux, J. S. Stutzmann, K. Burns, L. Asquith, LiquidO Collaboration: S. R. Soleti, L. Koch, L. Simard, M. Berberan e Santos, M. Bongrand, M. Chen, M. de Carlos Generowicz, M. Felizardo, M. Guiti\\`ere, M. L. Sarsa, M. Mart\\'inez, M. Roche, M. Silva, M. S. Pravikoff, M. Yeh, N. P. Barradas, N. Rodrigues, N. Roy, N. Tuccori, P. Chimenti, P. Lasorak, P. Loaiza, P. Pillot, R. Gazzini, R. Rosero, S. Dusini, S. Kr. Das, S. M. Wakely, S. Richards, T. J. C. Bezerra, T. Palmeira, V. Strati, W. C. Griffith, W. Shorrock, X. de la Bernardie","submitted_at":"2025-02-28T10:17:07Z","abstract_excerpt":"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 potenti"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2502.20916","kind":"arxiv","version":3},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2502.20916/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}