TY - JOUR
T1 - The development and performance evaluation of a hybrid photo-detector for Hyper-Kamiokande
AU - Jiang, Miao
AU - Nishimura, Yasuhiro
AU - Okajima, Yuji
AU - Kuze, Masahiro
AU - Suda, Yusuke
AU - Akutsu, Ryosuke
AU - Fukuda, Daisuke
AU - Hirota, Seiko
AU - Yokoyama, Masashi
AU - Nakahata, Masayuki
AU - Shiozawa, Masato
AU - Hayato, Yoshinari
AU - Nakayama, Shoei
AU - Tanaka, Hidekazu
AU - Nakaya, Tsuyoshi
AU - Minamino, Akihiro
AU - Taketa, Akimichi
AU - Kawai, Yoshihiko
AU - Ohmura, Takayuki
AU - Suzuki, Masatoshi
PY - 2015/1/1
Y1 - 2015/1/1
N2 - 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.
AB - 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.
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M3 - Conference article
AN - SCOPUS:84988565777
SN - 1824-8039
VL - 6-9-July-2015
JO - Proceedings of Science
JF - Proceedings of Science
M1 - 022
T2 - 4th International Conference on New Photo-Detectors, PhotoDet 2015
Y2 - 6 July 2015 through 9 July 2015
ER -