The following email has been sent to SUDA, Yusuke:
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Dear Yusuke Suda,
The submission of your abstract has been successfully processed.
Abstract submitted: https://indico.cern.ch/userAbstracts.py?confId=192695.
Status of your abstract: https://indico.cern.ch/abstractDisplay.py?abstractId=128&confId=192695.
See below a detailed summary of your submitted abstract:
Conference: Tipp 2014 - Third International Conference on Technology and Instrumentation in Particle Physics
Submitted by: SUDA, Yusuke
Submitted on: 31 January 2014 09:19
Title: Performance evaluation of new photodetectors for Hyper- Kamiokande
Abstract content We have been developing new photodetectors for the Hyper-Kamiokande (Hyper-K) detector, which is proposed as a next generation Megaton class water Cherenkov detector. There are three candidate photodetectors; One is a 20-inch venetian blind dynode type PMT (R3600) which is used in Super-Kamiokande. Second is a newly developed box and line dynode type PMT which has a better collection efficiency and timing response than R3600. The other one, a large-aperture Hybrid Photo-Detector (HPD), is also newly developed and uses an avalanche diode instead of dynodes to multiply photoelectrons. Compared to PMT, the HPD has a simpler structure, better collection efficiency, better timing response, and better single photoelectron charge resolution. A high quantum efficiency (QE) is a common option for the three candidates and it was applied for the R3600 at first. The high-QE R3600 has 30 % QE at maximum peak, 1.4 times higher than that of the R3600 used in Super-Kamiokande. In order to evaluate the performance and usability of the candidate photodetectors, we perform a long-term test with a 200-ton water Cherenkov detector located in Kamioka mine. The progress of the long-term test of 8-inch HPDs and high-QE R3600s will be reported. The status of R & D of the 20-inch box & line PMTs and 20-inch HPDs will be also presented. We plan to choose the photodetectors for Hyper-K in 2016.
Summary
Primary Authors: Mr. SUDA, Yusuke (Department of Physics, University of Tokyo) yusuke@hep.phys.s.u-tokyo.ac.jp
Co-authors: Dr. NISHIMURA, Yasuhiro (Research Center for Cosmic Neutrinos, Institute for Cosmic Ray Research, University of Tokyo) ynisi@km.icrr.u-tokyo.ac.jp Ms. HIROTA, Seiko (Department of Physics, Kyoto University) s_hirota@scphys.kyoto-u.ac.jp Mr. OKAJIMA, Yuji (Department of Physics, Tokyo Institute of Technology) okajima@hep.phys.titech.ac.jp Prof. AIHARA, Hiroaki (Department of Physics, University of Tokyo) aihara@phys.s.u-tokyo.ac.jp Prof. YOKOYAMA, Masashi (Department of Physics, University of Tokyo) masashi@phys.s.u-tokyo.ac.jp Prof. SHIOZAWA, Masato (Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo) masato@suketto.icrr.u-tokyo.ac.jp Prof. HAYATO, Yoshinari (Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo) hayato@suketto.icrr.u-tokyo.ac.jp Dr. NAKAYAMA, Shoei (Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo) shoei@suketto.icrr.u-tokyo.ac.jp Dr. TANAKA, Hidekazu (Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo) thide@km.icrr.u-tokyo.ac.jp Prof. NAKAYA, Tsuyoshi (Department of Physics, Kyoto University) t.nakaya@scphys.kyoto-u.ac.jp Dr. TAKETA, Akimichi (Earthquake Research Institute, University of Tokyo) taketa@eri.u-tokyo.ac.jp Dr. KAWAI, Yoshihiko (Hamamatsu Photonics K.K.) kawai@etd.hpk.co.jp Dr. OHMURA, Takayuki (Hamamatsu Photonics K.K.) ohmura@etd.hpk.co.jp Dr. SUZUKI, Masatoshi (Hamamatsu Photonics K.K.) s-masato@etd.hpk.co.jp
Abstract presenters: Mr. SUDA, Yusuke
Track classification: Sensors: 1d) Photon Detectors Experiments: 2c) Detectors for neutrino physics
Presentation type: --not specified--
Comments: