The development and performance evaluation of a hybrid photo-detector for Hyper-Kamiokande

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

Research output: Contribution to journalConference article

Abstract

We have been developing a new hybrid photo-detector (HPD) for Hyper-Kamiokande, which is a proposed next generation megaton-class water Cherenkov detector. The prototypes of the 50 cm HPD with φ5 mm avalanche diode (AD) [1] and the 50 cm HPD with φ20 mm AD (R12850, Hamamatsu Photonics K.K.) were designed and produced after successful fabrication of 20 cm HPD. For the 50 cm HPD with φ5 mm AD, the transit time spread, linearity and temperature dependence of gain have been evaluated. For our target design of the 50 cm HPD with φ20 mm AD, two solutions by the segmented AD and the transformer coupling were tried to suppress the capacity seen by preamplifier since it is difficult to design a high speed preamplifier with low noise level for a large area AD due to the large junction capacitance. They successfully reduced the noise, and the performance of HPD showed significant improvements.

Original languageEnglish
Article number022
JournalProceedings of Science
Volume6-9-July-2015
Publication statusPublished - 2015 Jan 1
Externally publishedYes
Event4th International Conference on New Photo-Detectors, PhotoDet 2015 - Moscow, Troitsk, Russian Federation
Duration: 2015 Jul 62015 Jul 9

ASJC Scopus subject areas

  • General

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    Jiang, M., Nishimura, Y., Okajima, Y., Kuze, M., Suda, Y., Akutsu, R., Fukuda, D., Hirota, S., Yokoyama, M., Nakahata, M., Shiozawa, M., Hayato, Y., Nakayama, S., Tanaka, H., Nakaya, T., Minamino, A., Taketa, A., Kawai, Y., Ohmura, T., & Suzuki, M. (2015). The development and performance evaluation of a hybrid photo-detector for Hyper-Kamiokande. Proceedings of Science, 6-9-July-2015, [022].