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arXiv · physics/0312017

Development of a multi-pixel photon sensor with single-photon sensitivity

Motohiro Suyama·Atsuhito Fukasawa·Junji Haba·Toru Iijima·Seigi Iwata·Makoto Sakuda·Takayuki Sumiyoshi·Fumihiko Takasaki·Manobu Tanaka·Toru Tsuboyama·Yoshikazu Yamada
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Abstract

A multi-pixel photon sensor with single-photon sensitivity has been developed, based on a technology of a hybrid photo-detector (HPD) consisting of a photocathode and a multi-pixel avalanche diode (MP-AD). The developed HPD has a proximity focused structure, where a photocathode and an MP-AD are facing each other with a small gap of 2.5 mm. The MP-AD, which has an effective area of 16x16 mm2 composed of 8x8 pixels, has been specially designed for the HPD. The gain of the HPD reaches 5x10^4, sufficiently high to detect single photons with a timing resolution better than 100 ps. Number of photoelectrons up to four can be clearly identified in a pulse-height spectrum as distinct peaks, thanks to the low noise characteristics of the HPD. It is also demonstrated that the HPD can be operated with good performance in a magnetic field as high as 1.5 T

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Motohiro Suyama, Atsuhito Fukasawa, Junji Haba, Toru Iijima, Seigi Iwata, Makoto Sakuda, Takayuki Sumiyoshi, Fumihiko Takasaki, Manobu Tanaka, Toru Tsuboyama, Yoshikazu Yamada. 2003-12-04. Development of a multi-pixel photon sensor with single-photon sensitivity. https://doi.org/10.1016/j.nima.2003.12.027

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