Properties of new 50cm photodetectors in an environment for Hyper-Kamiokande

Daisuke Fukuda; Yasuhiro Nishimura; Ryosuke Akutsu; Yusuke Suda; Miao Jiang; Seiko Hirota; Yuji Okajima; Yusuke Koshio; Masayuki Nakahata; Masato Shiozawa; Yoshinari Hayato; Shoei Nakayama; Hidekazu Tanaka; Masashi Yokoyama; Tsuyoshi Nakaya; Akimichi Taketa; Yoshihiko Kawai; Takayuki Ohmura; Masatoshi Suzuki

Properties of new 50cm photodetectors in an environment for Hyper-Kamiokande

Daisuke Fukuda, Yasuhiro Nishimura, Ryosuke Akutsu, Yusuke Suda, Miao Jiang, Seiko Hirota, Yuji Okajima, Yusuke Koshio, Masayuki Nakahata, Masato Shiozawa, Yoshinari Hayato, Shoei Nakayama, Hidekazu Tanaka, Masashi Yokoyama, Tsuyoshi Nakaya, Akimichi Taketa, Yoshihiko Kawai, Takayuki Ohmura, Masatoshi Suzuki

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Abstract

Hyper-Kamiokande is a next generation large water Cherenkov detector proposed for search for proton decay and neutrino observations. A 50cm Box-and-Line dynode photomultiplier tube (B&L PMT), which exhibits excellent time and energy resolution, was newly developed for Hyper-Kamiokande. The performance of the B&L PMT was confirmed under anticipated conditions in Hyper-Kamiokande such as expected magnetic field levels, high voltages and temperature ranges. Furthermore, the uniformity of timing and collection efficiency was measured for consistency with design. Characteristics of dark rate and afterpulse were also evaluated in detail.

Original language	English
Article number	016
Journal	Proceedings of Science
Volume	6-9-July-2015
Publication status	Published - 2015

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Fukuda, D., Nishimura, Y., Akutsu, R., Suda, Y., Jiang, M., Hirota, S., Okajima, Y., Koshio, Y., Nakahata, M., Shiozawa, M., Hayato, Y., Nakayama, S., Tanaka, H., Yokoyama, M., Nakaya, T., Taketa, A., Kawai, Y., Ohmura, T., & Suzuki, M. (2015). Properties of new 50cm photodetectors in an environment for Hyper-Kamiokande. Proceedings of Science, 6-9-July-2015, [016].

Properties of new 50cm photodetectors in an environment for Hyper-Kamiokande. / Fukuda, Daisuke; Nishimura, Yasuhiro; Akutsu, Ryosuke; Suda, Yusuke; Jiang, Miao; Hirota, Seiko; Okajima, Yuji; Koshio, Yusuke; Nakahata, Masayuki; Shiozawa, Masato; Hayato, Yoshinari; Nakayama, Shoei; Tanaka, Hidekazu; Yokoyama, Masashi; Nakaya, Tsuyoshi; Taketa, Akimichi; Kawai, Yoshihiko; Ohmura, Takayuki; Suzuki, Masatoshi.

In: Proceedings of Science, Vol. 6-9-July-2015, 016, 2015.

Research output: Contribution to journal › Article

Fukuda, Daisuke ; Nishimura, Yasuhiro ; Akutsu, Ryosuke ; Suda, Yusuke ; Jiang, Miao ; Hirota, Seiko ; Okajima, Yuji ; Koshio, Yusuke ; Nakahata, Masayuki ; Shiozawa, Masato ; Hayato, Yoshinari ; Nakayama, Shoei ; Tanaka, Hidekazu ; Yokoyama, Masashi ; Nakaya, Tsuyoshi ; Taketa, Akimichi ; Kawai, Yoshihiko ; Ohmura, Takayuki ; Suzuki, Masatoshi. / Properties of new 50cm photodetectors in an environment for Hyper-Kamiokande. In: Proceedings of Science. 2015 ; Vol. 6-9-July-2015.

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abstract = "Hyper-Kamiokande is a next generation large water Cherenkov detector proposed for search for proton decay and neutrino observations. A 50cm Box-and-Line dynode photomultiplier tube (B&L PMT), which exhibits excellent time and energy resolution, was newly developed for Hyper-Kamiokande. The performance of the B&L PMT was confirmed under anticipated conditions in Hyper-Kamiokande such as expected magnetic field levels, high voltages and temperature ranges. Furthermore, the uniformity of timing and collection efficiency was measured for consistency with design. Characteristics of dark rate and afterpulse were also evaluated in detail.",

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AU - Fukuda, Daisuke

AU - Nishimura, Yasuhiro

AU - Akutsu, Ryosuke

AU - Suda, Yusuke

AU - Jiang, Miao

AU - Hirota, Seiko

AU - Okajima, Yuji

AU - Koshio, Yusuke

AU - Nakahata, Masayuki

AU - Shiozawa, Masato

AU - Hayato, Yoshinari

AU - Nakayama, Shoei

AU - Tanaka, Hidekazu

AU - Yokoyama, Masashi

AU - Nakaya, Tsuyoshi

AU - Taketa, Akimichi

AU - Kawai, Yoshihiko

AU - Ohmura, Takayuki

AU - Suzuki, Masatoshi

PY - 2015

Y1 - 2015

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AB - Hyper-Kamiokande is a next generation large water Cherenkov detector proposed for search for proton decay and neutrino observations. A 50cm Box-and-Line dynode photomultiplier tube (B&L PMT), which exhibits excellent time and energy resolution, was newly developed for Hyper-Kamiokande. The performance of the B&L PMT was confirmed under anticipated conditions in Hyper-Kamiokande such as expected magnetic field levels, high voltages and temperature ranges. Furthermore, the uniformity of timing and collection efficiency was measured for consistency with design. Characteristics of dark rate and afterpulse were also evaluated in detail.

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Properties of new 50cm photodetectors in an environment for Hyper-Kamiokande

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