Author/Authors :
Lucotte، نويسنده , , A and Bondil، نويسنده , , S and Borer، نويسنده , , K and Campagne، نويسنده , , J.E and Cazes، نويسنده , , A and Hess، نويسنده , , M and de La Taille، نويسنده , , C and Martin-Chassard، نويسنده , , G and Raux، نويسنده , , L and Repellin، نويسنده , , J.P، نويسنده ,
Abstract :
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 [0–100] photo-electrons.
s 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.
