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Matsumoto, T.; Korpar, S.; Adachi, I.; Fratina, S.; Iijima, T.; Ishibashi, R.; Kawai, H.; Križan, P.; Ogawa, S.; Pestotnik, R.; Saitoh, S.; Seki, T.; Sumiyoshi, T.; Suzuki, K.; Tabata, T.; Uchida, Y.; Unno, Y.
Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 02/2004, Letnik: 518, Številka: 1Journal Article
A proximity focusing ring imaging Cherenkov detector using aerogel as the radiator is studied for the upgrade of the Belle detector at KEK-B-factory. The second beam test of the detector was carried out using the recently introduced flat-panel PMTs (Hamamatsu H8500) and newly developed aerogel samples having better transmission length. We observe Cherenkov rings with a single photon resolution of about 14 mrad , and typically on average 6 detected photons per ring. The results show that such a detector is a promising step in R&D for upgrading the Belle spectrometer.
