Status of COMPASS RICH-1 upgrade with MPGD-based photon detectors

Alexeev, M.; Birsa, R; Bradamante, F.; Bressan, A.; Chiosso, M.; Ciliberti, P.; Dalla Torre, S.; Dasgupta, S.; Denisov, O.; Finger, M.; Finger Jr, M.; Fishcher, H.; Gobbo, B.; Gregori, M.; Hamar, G.; Herrmann, F.; Königsmann, K.; Levorato, S.; Maggiora, A.; Makke, N.; Martin, A.; Menon, G.; Novy, J.; Panzieri, D.; Pereira, F. A.; Santos, C. A.; Sbrizzai, G.; Schiavon, P.; Schopferer, S.; Slunechka, M.; Steiger, K.; Steiger, L.; Sulc, M.; Tessarotto, F.; Veloso, J. F. C. A.

doi:10.1051/epjconf/201817401004

A Set of new MPGD-based Photon Detectors is being built for the upgrade of COMPASS RICH-1. The detectors cover a total active area of 1.4 m2 and are based on a hybrid architecture consisting of two THGEM layers and a Micromegas. A CsI film on one THGEM acts as a reflective photocathode. The characteristics of the detector, the production of the components and their validation tests are described in detail.

Status of COMPASS RICH-1 upgrade with MPGD-based photon detectors / Alexeev, M., Birsa, R., Bradamante, F., Bressan, A., Chiosso, M., Ciliberti, P., Dalla Torre, S., Dasgupta, S., Denisov, O., Finger, M., Finger Jr, M., Fishcher, H., Gobbo, B., Gregori, M., Hamar, G., Herrmann, F., Königsmann, K., Levorato, S., Maggiora, A., Makke, N., et al.. - In: EPJ WEB OF CONFERENCES. - ISSN 2101-6275. - ELETTRONICO. - 174:01004(2018), pp. 1-5. (4th International Conference on MicroPattern Gaseous Detectors, MPGD 2015 Trieste, Italy October 12-15, 2015) [10.1051/epjconf/201817401004].