TY - JOUR
T1 - New large aperture, hybrid photo-detector and photo multiplier tube for a gigantic water Cherenkov ring imaging detector
AU - Hirota, Seiko
AU - Nishimura, Yasuhiro
AU - Suda, Yusuke
AU - Okajima, Yuji
AU - Shiozawa, Masato
AU - Nakayama, Shoei
AU - Tanaka, Hidekazu
AU - Hayato, Yoshinari
AU - Ikeda, Motoyasu
AU - Nakahata, Masayuki
AU - Yokoyama, Masashi
AU - Aihara, Hiroaki
AU - Ichikawa, Atsuko
AU - Minamino, Akihiro
AU - Huang, Kunxian
AU - Nakaya, Tsuyoshi
AU - Kawai, Yoshihiko
AU - Suzuki, Masatoshi
AU - Ohmura, Takayuki
N1 - Publisher Copyright:
© 2014 The Authors.
PY - 2014/12/1
Y1 - 2014/12/1
N2 - We are developing a 20-in. aperture high quantum efficiency photo-multiplier tube (PMT) and a hybrid photo-detector (HPD) for Hyper-Kamiokande which is a next generation underground large water Cherenkov detector. We have measured prototypes of 20-in. PMT with a high quantum efficiency photocathode, 30% at 400 nm, and 8-in. HPDs with a normal quantum efficiency photocathode, 22% at 400 nm, in a 200-ton water tank and checked their performance. The PMTs have a 2.7 ns (sigma) timing resolution and 43% (sigma) charge resolution for single photo-electron. Compared to PMTs, HPDs show a better performance with a 1.7 ns timing resolution and 32.
AB - We are developing a 20-in. aperture high quantum efficiency photo-multiplier tube (PMT) and a hybrid photo-detector (HPD) for Hyper-Kamiokande which is a next generation underground large water Cherenkov detector. We have measured prototypes of 20-in. PMT with a high quantum efficiency photocathode, 30% at 400 nm, and 8-in. HPDs with a normal quantum efficiency photocathode, 22% at 400 nm, in a 200-ton water tank and checked their performance. The PMTs have a 2.7 ns (sigma) timing resolution and 43% (sigma) charge resolution for single photo-electron. Compared to PMTs, HPDs show a better performance with a 1.7 ns timing resolution and 32.
KW - Cherenkov ring imaging detector
KW - High quantum efficiency
KW - Hybrid photo-detector
KW - Hyper-Kamiokande
KW - Neutrino
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U2 - 10.1016/j.nima.2014.06.010
DO - 10.1016/j.nima.2014.06.010
M3 - Article
AN - SCOPUS:84910076762
VL - 766
SP - 152
EP - 155
JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
SN - 0168-9002
ER -