{"paper":{"title":"The novel photon detectors based on MPGD technologies for the upgrade of COMPASS RICH-1","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex","nucl-ex"],"primary_cat":"physics.ins-det","authors_text":"A.Bressan, A.Cicuttin, A.Maggiora, A.Martin, B.Gobbo, C.A.Santos, C.Chatterjee, C.D.R.Azevedo, D.Panzieri, F.A.B.Pereira, F.Bradamante, F.Tessarotto, G.Hamar, G.Menon, G.Sbrizzai, J.Agarwala, J.F.C.A.Veloso, J.Novy, K.Steiger, L.Steiger, M.Alexeev, M.Chiosso, M.Finger, M.Finger Jr., M.Gregori, M.L.Crespo, M.Slunecka, M.Sulc, O.Denisov, P.Ciliberti, R.Birsa, S.Dalla Torre, S.Levorato, S.S.Dasgupta, Y.Zhao","submitted_at":"2018-04-16T16:08:57Z","abstract_excerpt":"The RICH-1 Detector of the COMPASS experiment at CERN SPS has undergone an important upgrade in 2016. Four new photon detectors, based on MPGD technology and covering a total active area larger than 1.2~$m^2$ have replaced the previously used MWPC-based photon detectors. The new detector architecture, resulting from a dedicated, eight years long, R\\&D program, consists in a hybrid MPGD combination of two THGEMs and a Micromegas stage; the first THGEM, coated with a CsI layer, acts as a reflective photocathode. The signals are extracted from the anode pads by capacitive coupling and read-out by"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1804.05765","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"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"}