Author/Authors :
Nishida، نويسنده , , Shohei and Adachi، نويسنده , , Ichiro and Dolenec، نويسنده , , Rok and Hara، نويسنده , , Kohji and Iijima، نويسنده , , Toru and Ikeda، نويسنده , , Hirokazu and Ishii، نويسنده , , Yoshikazu and Kawai، نويسنده , , Hideyuki and Korpar، نويسنده , , Samo and Krizan، نويسنده , , Peter and Kuroda، نويسنده , , Eiryo and Miyazawa، نويسنده , , Yuichi and Nishizawa، نويسنده , , Isao and Ogawa، نويسنده , , Satoru and Pestotnik، نويسنده , , Rok and Sawafuji، نويسنده , , Natsuko and Shiizuka، نويسنده , , Susumu and Sumiyoshi، نويسنده , , Takayuki and Tabata، نويسنده , , Makoto and Ueki، نويسنده , , Yasuo، نويسنده ,
Abstract :
For the upgrade of the Belle detector at the KEKB collider, we are developing a proximity focusing ring imaging Cherenkov detector using aerogel as a radiator. A 144 channel HAPD (Hybrid Avalanche Photo-Detector) is one of the candidate photo-detectors. We have measured the performance of the HAPDs, and succeeded to read out signals from the HAPD corresponding to one photo-electron using ASICs that have been developed for this purpose. We have also performed a beam test with a 2 GeV electron beam, and succeeded to detect a Cherenkov ring from the aerogel radiator.
Keywords :
HAPD , Photo-detector , rich , Particle identification , B factory , ASIC
