Physics Procedia · 2012 · 11 citations · 5 references
EngineeringElectrical EngineeringNuclear EngineeringNuclear InstrumentationRadiation DetectionRadiation MeasurementCharged Particle DetectionDetector SystemsDetector TechnologyParticle DetectorsPhotodetectorsRadiation DetectorsCherenkov DetectionCherenkov DetectorsDetector DesignDetector Readout ElectronicsFront-end ArchitectureParticle IdentificationReadoutReadout Electronics
The particle identification (PID) device in the endcap of the Belle detector will be upgraded to a ring imaging Cherenkov counter (RICH) using aerogel as a radiator at the Belle II experiment. We develop the electronics to read out the 70,000 channels of hit information from the 144-channel hybrid avalanche photodetectors (HAPD), of the aerogel RICH detector. A readout ASIC is developed to digitize the HAPD signals, and was used in a beam test with the prototype detector. The performance and plan of the ASIC is reported in this study. We have also designed the readout electronics for the aerogel RICH, which consist of front-end boards with the ASICs merger boards to collect data from the front-end boards. A front-end board that fits in the actual available space for the aerogel RICH electronics was produced.
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