Integrated readout electronics for the PbWO{sub 4} photon spectrometer

Conference · Sun Dec 31 00:00:00 EST 1995

OSTI ID:195729

Simpson, M L; Alley, G T; Awes, T ^[1]

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1. and others

The PbWO{sub 4} calorimeter of the ALICE detector is designed to detect the prompt photons to provide direct information on the partonic, early phases of the heavy-ion interaction. The goal is to measure all the photons over a large enough solid angle to reconstruct both {pi}{sup 0}`s and {eta}`s. A proposed readout system for the ALICE PbWO{sub 4} photon spectrometer is presented. In one proposed implementation, light will be detected from each end of the crystals by PIN photodiodes and this signal will be amplified by charge-sensitive amplifiers. The 73,728 channel readout system will accept the preamplifier signals and deliver digitized data to the data collection modules. A readout board will consist of 8-channel, custom front-end chips which form energy and timing signals, and board-level control and communication circuits. Many of the subcircuits proposed for this spectrometer have been developed for use in other applications. The performance of these circuits is shown.

• Research Organization: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 195729
• Report Number(s): CONF-9509265-2; ON: DE96005424; TRN: AHC29605%%105
• Resource Relation: Conference: 1. workshop on electronics for large Hadron collider experiments, Lisbon (Portugal), 10-15 Sep 1995; Other Information: PBD: [1995]
• Country of Publication: United States
• Language: English

Related Subjects

44 INSTRUMENTATION
INCLUDING NUCLEAR AND PARTICLE DETECTORS
READOUT SYSTEMS
DESIGN
PERFORMANCE
SHOWER COUNTERS
LEAD TUNGSTATES
PIONS NEUTRAL
ETA PRIME-958 MESONS
PARTICLE IDENTIFICATION
DATA PROCESSING
DATA TRANSMISSION
DATA ACQUISITION SYSTEMS
DISCRIMINATORS
ANALOG-TO-DIGITAL CONVERTERS
DIAGNOSTIC TECHNIQUES