New large aperture, hybrid photo-detector and photo multiplier tube for a gigantic water Cherenkov ring imaging detector

Seiko Hirota; Yasuhiro Nishimura; Yusuke Suda; Yuji Okajima; Masato Shiozawa; Shoei Nakayama; Hidekazu Tanaka; Yoshinari Hayato; Motoyasu Ikeda; Masayuki Nakahata; Masashi Yokoyama; Hiroaki Aihara; Atsuko Ichikawa; Akihiro Minamino; Kunxian Huang; Tsuyoshi Nakaya; Yoshihiko Kawai; Masatoshi Suzuki; Takayuki Ohmura

doi:10.1016/j.nima.2014.06.010

New large aperture, hybrid photo-detector and photo multiplier tube for a gigantic water Cherenkov ring imaging detector

Seiko Hirota, Yasuhiro Nishimura, Yusuke Suda, Yuji Okajima, Masato Shiozawa, Shoei Nakayama, Hidekazu Tanaka, Yoshinari Hayato, Motoyasu Ikeda, Masayuki Nakahata, Masashi Yokoyama, Hiroaki Aihara, Atsuko Ichikawa, Akihiro Minamino, Kunxian Huang, Tsuyoshi Nakaya, Yoshihiko Kawai, Masatoshi Suzuki, Takayuki Ohmura

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	152-155
Number of pages	4
Journal	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	766
DOIs	https://doi.org/10.1016/j.nima.2014.06.010
Publication status	Published - 2014 Dec 1
Externally published	Yes

Keywords

Cherenkov ring imaging detector
High quantum efficiency
Hybrid photo-detector
Hyper-Kamiokande
Neutrino

ASJC Scopus subject areas

Nuclear and High Energy Physics
Instrumentation

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Hirota, S., Nishimura, Y., Suda, Y., Okajima, Y., Shiozawa, M., Nakayama, S., Tanaka, H., Hayato, Y., Ikeda, M., Nakahata, M., Yokoyama, M., Aihara, H., Ichikawa, A., Minamino, A., Huang, K., Nakaya, T., Kawai, Y., Suzuki, M., & Ohmura, T. (2014). New large aperture, hybrid photo-detector and photo multiplier tube for a gigantic water Cherenkov ring imaging detector. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 766, 152-155. https://doi.org/10.1016/j.nima.2014.06.010

New large aperture, hybrid photo-detector and photo multiplier tube for a gigantic water Cherenkov ring imaging detector. / Hirota, Seiko; Nishimura, Yasuhiro; Suda, Yusuke; Okajima, Yuji; Shiozawa, Masato; Nakayama, Shoei; Tanaka, Hidekazu; Hayato, Yoshinari; Ikeda, Motoyasu; Nakahata, Masayuki; Yokoyama, Masashi; Aihara, Hiroaki; Ichikawa, Atsuko; Minamino, Akihiro; Huang, Kunxian; Nakaya, Tsuyoshi; Kawai, Yoshihiko; Suzuki, Masatoshi; Ohmura, Takayuki.

In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 766, 01.12.2014, p. 152-155.

Research output: Contribution to journal › Article › peer-review

Hirota, S, Nishimura, Y, Suda, Y, Okajima, Y, Shiozawa, M, Nakayama, S, Tanaka, H, Hayato, Y, Ikeda, M, Nakahata, M, Yokoyama, M, Aihara, H, Ichikawa, A, Minamino, A, Huang, K, Nakaya, T, Kawai, Y, Suzuki, M & Ohmura, T 2014, 'New large aperture, hybrid photo-detector and photo multiplier tube for a gigantic water Cherenkov ring imaging detector', Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 766, pp. 152-155. https://doi.org/10.1016/j.nima.2014.06.010

Hirota S, Nishimura Y, Suda Y, Okajima Y, Shiozawa M, Nakayama S et al. New large aperture, hybrid photo-detector and photo multiplier tube for a gigantic water Cherenkov ring imaging detector. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 2014 Dec 1;766:152-155. https://doi.org/10.1016/j.nima.2014.06.010

Hirota, Seiko ; Nishimura, Yasuhiro ; Suda, Yusuke ; Okajima, Yuji ; Shiozawa, Masato ; Nakayama, Shoei ; Tanaka, Hidekazu ; Hayato, Yoshinari ; Ikeda, Motoyasu ; Nakahata, Masayuki ; Yokoyama, Masashi ; Aihara, Hiroaki ; Ichikawa, Atsuko ; Minamino, Akihiro ; Huang, Kunxian ; Nakaya, Tsuyoshi ; Kawai, Yoshihiko ; Suzuki, Masatoshi ; Ohmura, Takayuki. / New large aperture, hybrid photo-detector and photo multiplier tube for a gigantic water Cherenkov ring imaging detector. In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 2014 ; Vol. 766. pp. 152-155.

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AU - Shiozawa, Masato

AU - Nakayama, Shoei

AU - Tanaka, Hidekazu

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AU - Ikeda, Motoyasu

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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

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