Imager of MPPC-based optical photon counter from Yamagata

Kazuaki Hashiyama; Takeshi Nakamori; Masayoshi Shoji; Rin Sato; Anju Sato; Mana Hasebe; Dai Takei; Koji Kawabata; Tatsuya Nakaoka; Masaru Kino; Toshio Terasawa; Yoshinori Yonekura; Yasuhiro Murata; Kazuhiro Takefuji; Kazuki Ueno; Tomohiro Sato

doi:10.1117/12.3018819

27 August 2024 Imager of MPPC-based optical photon counter from Yamagata

Kazuaki Hashiyama, Takeshi Nakamori, Masayoshi Shoji, Rin Sato, Anju Sato, Mana Hasebe, Dai Takei, Koji Kawabata, Tatsuya Nakaoka, Masaru Kino, Toshio Terasawa, Yoshinori Yonekura, Yasuhiro Murata, Kazuhiro Takefuji, Kazuki Ueno, Tomohiro Sato

Author Affiliations +

Proceedings Volume 13103, X-Ray, Optical, and Infrared Detectors for Astronomy XI; 1310314 (2024) https://doi.org/10.1117/12.3018819
Event: SPIE Astronomical Telescopes + Instrumentation, 2024, Yokohama, Japan

Abstract

We have developed the 100 ns high-time resolution optical camera based on the Multi-Pixel Photon Counter (MPPC) called ”Imager of MPPC-based Optical photoN counter from Yamagata (IMONY)”. IMONY has three important parts: the customized sensor, the front-end board, and the Field Programmable Gate Array (FPGA) with the Global Navigation Satellite System (GNSS). The sensor is made with the MPPC composed of a monolithic Geiger-mode Avalanche PhotoDiodes (GAPD) array. The photon detection efficiency is more than 60% at 450nm. The feature that GAPD can detect a single photon has cons in terms of dynamic range, while has pros in terms of nothing readout noise. A detected photon is converted to a photo-electron, and it is multiplied ∼106 times larger via avalanche amplification. The front-end board has a comparator and the amplified signal is recognized as a single photon when the pulse height exceeds a threshold. The output signal is sent to the FPGA and given a timestamp of 100ns accuracy. In January 2023 and October 2023, we mounted IMONY for two Japanese optical telescopes. One is the 1.5m Kanata telescope, Hiroshima, Japan. The other is the 3.8m Seimei telescope, Okayama, Japan. We observed the Crab pulsar and detected pulses for all rotations (one pulse per single rotation) more than 5σ for the main pulse phase.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

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Kazuaki Hashiyama, Takeshi Nakamori, Masayoshi Shoji, Rin Sato, Anju Sato, Mana Hasebe, Dai Takei, Koji Kawabata, Tatsuya Nakaoka, Masaru Kino, Toshio Terasawa, Yoshinori Yonekura, Yasuhiro Murata, Kazuhiro Takefuji, Kazuki Ueno, and Tomohiro Sato "Imager of MPPC-based optical photon counter from Yamagata", Proc. SPIE 13103, X-Ray, Optical, and Infrared Detectors for Astronomy XI, 1310314 (27 August 2024); https://doi.org/10.1117/12.3018819

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