CERN Accelerating science

Article
Title	Fast Photon Detection for COMPASS RICH1
Author(s)	Abbon, P (DSM, DAPNIA, Saclay) ; Alekseev, M (INFN, Turin ; Turin U.) ; Angerer, H (Munich, Tech. U.) ; Apollonio, M (INFN, Trieste ; Trieste U.) ; Birsa, R (INFN, Trieste ; Trieste U.) ; Bordalo, P (Lisbon, LIFEP) ; Bradamante, F (INFN, Trieste ; Trieste U.) ; Bressan, A (INFN, Trieste ; Trieste U.) ; Busso, L (INFN, Turin ; Turin U.) ; Chiosso, M (INFN, Turin ; Turin U.) ; Ciliberti, P (INFN, Trieste ; Trieste U.) ; Colantoni, M L (INFN, Turin ; Piemonte Orientale U., Alessandria) ; Costa, S (INFN, Turin ; Turin U.) ; Dibiase, N (INFN, Turin ; Turin U.) ; Dafni, T (DMS, DAPNIA, Saclay) ; Dalla Torre, S (INFN, Trieste ; Trieste U.) ; Diaz, V (INFN, Trieste ; Trieste U.) ; Duic, v (INFN, Trieste ; Trieste U.) ; Delagnes, E (DSM, DAPNIA, Saclay) ; Deschamps, H (DSM, DAPNIA, Saclay) ; Eyrich, W (Erlangen - Nuremberg U.) ; Faso, D (INFN, Turin ; Turin U.) ; Ferrero, A (INFN, Turin ; Turin U.) ; Finger, M (Charles U. ; Dubna, JINR) ; Finger, M Jr (Charles U. ; Dubna, JINR) ; Fischer, H (Freiburg U.) ; Gerassimov, S (Munich, Tech. U.) ; Giorgi, M (INFN, Trieste ; Trieste U.) ; Gobbo, B (INFN, Trieste ; Trieste U.) ; Hagemann, R (Freiburg U.) ; Von Harrach, D (Mainz U., Inst. Kernphys.) ; Heinsius, F H (Freiburg U.) ; Joosten, R (Bonn U., HISKP) ; Ketzer, B (Munich, Tech. U.) ; Königsmann, K (Freiburg U.) ; Kolosov, V N (CERN) ; Konorov, I (Munich, Tech. U.) ; Kramer, D (Liberec Tech. U.) ; Kunne, F (DSM, DAPNIA, Saclay) ; Levorato, S (INFN, Trieste ; Trieste U.) ; Maggiora, A (INFN, Turin ; Turin U.) ; Magnon, A (DSM, DAPNIA, Saclay) ; Mann, A (Munich, Tech. U.) ; Martin, A (INFN, Trieste ; Trieste U.) ; Menon, G (INFN, Trieste ; Trieste U.) ; Mutter, A (Freiburg U.) ; Nähle, O (Bonn U., HISKP) ; Neyret, D (DSM, DAPNIA, Saclay) ; Nerling, F (Freiburg U.) ; Pagano, P (INFN, Trieste ; Trieste U.) ; Paul, S (Munich, Tech. U.) ; Panebianco, S (DSM, DAPNIA, Saclay) ; Panzieri, D (INFN, Turin ; Piemonte Orientale U., Alessandria) ; Pesaro, G (INFN, Trieste ; Trieste U.) ; Pizzolotto, C (Erlangen - Nuremberg U.) ; Polak, J (Liberec Tech. U.) ; Rebourgeard, P (DSM, DAPNIA, Saclay) ; Rocco, E (INFN, Trieste ; Trieste U.) ; Robinet, F (DSM, DAPNIA, Saclay) ; Schiavon, P (INFN, Trieste ; Trieste U.) ; Schill, C (Freiburg U.) ; Schoenmeier, P (Erlangen - Nuremberg U.) ; Silva, L (Lisbon, LIFEP) ; Slunecka, M (Charles U. ; Dubna, JINR) ; Steiger, L (Charles U. ; Dubna, JINR) ; Sozzi, F (INFN, Trieste ; Trieste U.) ; Sulc, M (Liberec Tech. U.) ; Svec, M (Liberec Tech. U.) ; Tessarotto, F (INFN, Trieste ; Trieste U.) ; Teufel, A (Erlangen - Nuremberg U.) ; Wollny, H (Freiburg U.)
Publication	2006
Number of pages	8
In:	Czechoslov. J. Phys. 56 (2006) pp.F317
In:	Advanced Studies Institution Symmetries and Spin, Prague, Czech Republic, 19 - 26 Jul 2006, pp.317
Subject category	Particle Physics - Experiment
Accelerator/Facility, Experiment	CERN SPS ; COMPASS NA58
Abstract	The new photon detection system for COMPASS RICH-1 has been designed to cope with the demanding requests of operation at high beam intensity and at high trigger rates. The detection technique in the central region of RICH-1 has been changed with a system based on multianode photomultipliers coupled to individual fused silica lens telescopes and to a fast, almost dead time free readout system based on the MAD-4 amplifier-discriminator and the F1 TDC-chip. The new photon detection system design and construction are described, as well as its first response in the experiment.