/ Instrumentation arXiv:0712.1964


The Fast read-out system for the MAPMTs of COMPASS RICH-1


Abbon, P. (DSM, DAPNIA, Saclay) ; Alexeev, M. (INFN, Turin) ; Angerer, H. (Munich, Tech. U.) ; Birsa, R. (INFN, Trieste) ; Bordalo, P. (Lisbon, LIFEP) ; Bradamante, Franco (INFN, Trieste) ; Bressan, A. (INFN, Trieste) ; Chiosso, M. (INFN, Turin) ; Ciliberti, P. (INFN, Trieste) ; Colantoni, M.L. (INFN, Turin) ; Dafni, T. (DSM, DAPNIA, Saclay) ; Dalla Torre, S. (INFN, Trieste) ; Delagnes, E. (DSM, DAPNIA, Saclay) ; Denisov, Oleg (INFN, Turin) ; Deschamps, H. (DSM, DAPNIA, Saclay) ; Diaz, V. (INFN, Trieste) ; Dibiase, N. (INFN, Turin) ; Duic, V. (INFN, Trieste) ; Eyrich, W. (Erlangen - Nuremberg U.) ; Ferrero, A. (INFN, Turin) ; Finger, M. (Dubna, JINR) ; Finger, M., Jr (Dubna, JINR) ; Fischer, H. (Freiburg U.) ; Gerassimov, S. (Munich, Tech. U.) ; Giorgi, M. (INFN, Trieste) ; Gobbo, Benigno (INFN, Trieste) ; Hagemann, R. (Freiburg U.) ; von Harrach, D. (Mainz U., Inst. Kernphys.) ; Heinsius, Fritz-Herbert (Freiburg U.) ; Joosten, R. (Bonn U., HISKP) ; Ketzer, Bernhard (Munich, Tech. U.) ; Kolosov, V.N. (CERN) ; Konigsmann, Kay (Freiburg U.) ; Konorov, I. (Munich, Tech. U.) ; Kramer, D. (Liberec Tech. U.) ; Kunne, Fabienne (DSM, DAPNIA, Saclay) ; Lehmann, A. (Erlangen - Nuremberg U.) ; Levorato, S. (INFN, Trieste) ; Maggiora, A. (INFN, Turin) ; Magnon, A. (DSM, DAPNIA, Saclay) ; Mann, A. (Munich, Tech. U.) ; Martin, A. (INFN, Trieste) ; Menon, G. (INFN, Trieste) ; Mutter, A. (Freiburg U.) ; Nahle, O. (Bonn U., HISKP) ; Nerling, F. (Freiburg U.) ; Neyret, D. (DSM, DAPNIA, Saclay) ; Panzieri, D. (INFN, Turin) ; Paul, S. (Munich, Tech. U.) ; Pesaro, G. (INFN, Trieste) ; Pizzolotto, C. (Erlangen - Nuremberg U.) ; Polak, J. (INFN, Trieste) ; Rebourgeard, P. (DSM, DAPNIA, Saclay) ; Robinet, F. (DSM, DAPNIA, Saclay) ; Rocco, E. (INFN, Turin) ; Schiavon, P. (INFN, Trieste) ; Schill, Christian (Freiburg U.) ; Schoenmeier, P. (Erlangen - Nuremberg U.) ; Schroder, W. (Erlangen - Nuremberg U.) ; Silva, L. (Lisbon, LIFEP) ; Slunecka, M. (Dubna, JINR) ; Sozzi, F. (INFN, Trieste) ; Steiger, L. (Dubna, JINR) ; Sulc, M. (Liberec Tech. U.) ; Svec, M. (Liberec Tech. U.) ; Takekawa, S. (INFN, Trieste) ; Tessarotto, F. (INFN, Trieste) ; Teufel, A. (Erlangen - Nuremberg U.) ; Wollny, H. (Freiburg U.)

Published in: Nucl.Instrum.Meth.
Year: 2008
Vol.: A595
Page No: 204-207
Pages: 4

Abstract: A fast readout system for the upgrade of the COMPASS RICH detector has been developed and successfully used for data taking in 2006 and 2007. The new readout system for the multi-anode PMTs in the central part of the photon detector of the RICH is based on the high-sensitivity MAD4 preamplifier-discriminator and the dead-time free F1-TDC chip characterized by high-resolution. The readout electronics has been designed taking into account the high photon flux in the central part of the detector and the requirement to run at high trigger rates of up to 100 kHz with negligible dead-time. The system is designed as a very compact setup and is mounted directly behind the multi-anode photomultipliers. The data are digitized on the frontend boards and transferred via optical links to the readout system. The read-out electronics system is described in detail together with its measured performances.

Keyword(s): Front-end electronics ; TDC ; COMPASS ; RICH ; Multi-anode photomultiplier ; Particle identification

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