A front-end read out chip for the OPERA scintillator tracker

Multi-anode photomultipliers H7546 are used to readout signal from the OPERA Scintillator Tracker (CERN/SPSC 2000-028, SPSC/P318, LNGSP 25/2000; CERN/SPSC 2001-025, SPSC/M668, LNGS-EXP30/2001). A 32- channel front-end Read Out Chip prototype accommodating the H7546 has been designed at LAL. This dev...

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Detalles Bibliográficos
Autores principales: Lucotte, A, Bondil, S, Borer, K, Campagne, J E, Cazes, A, Hess, M, de La Taille, C, Martin-Chassard, G, Raux, L, Repellin, J P
Lenguaje:eng
Publicado: 2004
Materias:
Detectors and Experimental Techniques
Acceso en línea:https://dx.doi.org/10.1016/j.nima.2003.10.104
http://cds.cern.ch/record/802318
Descripción
Sumario:Multi-anode photomultipliers H7546 are used to readout signal from the OPERA Scintillator Tracker (CERN/SPSC 2000-028, SPSC/P318, LNGSP 25/2000; CERN/SPSC 2001-025, SPSC/M668, LNGS-EXP30/2001). A 32- channel front-end Read Out Chip prototype accommodating the H7546 has been designed at LAL. This device features a low-noise, variable gain preamplifier to correct for multi-anode non-uniformity, an auto- trigger capability 100% efficient at a 0.3 photo-electron, and a charge measurement extending over a large dynamic range left bracket 0-100 right bracket photo-electrons. In this article we describe the ASIC architecture that is being implemented for the Target Tracker in OPERA, with a special emphasis put on the designs and the measured performance.

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