Physics – Instrumentation and Detectors
Scientific paper
2009-12-07
IEEE Nuclear Science Symposium and Medical Imaging Conference (2009 NSS/MIC), Orlando : \'Etats-Unis (2009)
Physics
Instrumentation and Detectors
IEEE Nuclear Science Symposium an Medical Imaging Conference (2009 NSS/MIC)
Scientific paper
PARISROC is a complete read out chip, in AMS SiGe 0.35 !m technology, for photomultipliers array. It allows triggerless acquisition for next generation neutrino experiments and it belongs to an R&D program funded by the French national agency for research (ANR) called PMm2: ?Innovative electronics for photodetectors array used in High Energy Physics and Astroparticles? (ref.ANR-06-BLAN-0186). The ASIC (Application Specific Integrated Circuit) integrates 16 independent and auto triggered channels with variable gain and provides charge and time measurement by a Wilkinson ADC (Analog to Digital Converter) and a 24-bit Counter. The charge measurement should be performed from 1 up to 300 photo- electrons (p.e.) with a good linearity. The time measurement allowed to a coarse time with a 24-bit counter at 10 MHz and a fine time on a 100ns ramp to achieve a resolution of 1 ns. The ASIC sends out only the relevant data through network cables to the central data storage. This paper describes the front-end electronics ASIC called PARISROC.
Berni M. El
Campagne Jean Eric
Di Lorenzo Conforti S.
Dulucq F.
la Taille Ch. de
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