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The Tomo-e Gozen wide field CMOS camera for the Kiso Schmidt telescope
Author(s): Shigeyuki Sako; Ryou Ohsawa; Hidenori Takahashi; Yuto Kojima; Mamoru Doi; Naoto Kobayashi; Tsutomu Aoki; Noriaki Arima; Ko Arimatsu; Makoto Ichiki; Shiro Ikeda; Kota Inooka; Yoshifusa Ita; Toshihiro Kasuga; Mitsuru Kokubo; Masahiro Konishi; Hiroyuki Maehara; Noriyuki Matsunaga; Kazuma Mitsuda; Takashi Miyata; Yuki Mori; Mikio Morii; Tomoki Morokuma; Kentaro Motohara; Yoshikazu Nakada; Shin-Ichiro Okumura; Yuki Sarugaku; Mikiya Sato; Toshikazu Shigeyama; Takao Soyano; Masaomi Tanaka; Ken'ichi Tarusawa; Nozomu Tominaga; Tomonori Totani; Seitaro Urakawa; Fumihiko Usui; Junichi Watanabe; Takuya Yamashita; Makoto Yoshikawa
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Paper Abstract

The Tomo-e Gozen is a wide-field high-speed camera for the Kiso 1.0-m Schmidt telescope, with a field-of-view of 20.7-deg2 covered by 84 chips of 2k x 1k CMOS image sensors with 19-μm pixels. It is capable to take consecutive images at 2-fps in full-frame read with an absolute time accuracy of 0.2 millisecond. The sensors are operated without mechanical coolers owing to a low dark current at room temperature. A low read noise of 2-e- achieves higher sensitivity than that with a CCD sensor in short exposures. Big data of 30-TBytes per night produced in the 2-fps observations is processed in real-time to quickly detect transient events and issue alerts for follow-ups.

Paper Details

Date Published: 6 July 2018
PDF: 17 pages
Proc. SPIE 10702, Ground-based and Airborne Instrumentation for Astronomy VII, 107020J (6 July 2018); doi: 10.1117/12.2310049
Show Author Affiliations
Shigeyuki Sako, The Univ. of Tokyo (Japan)
Japan Science and Technology Agency (Japan)
Ryou Ohsawa, The Univ. of Tokyo (Japan)
Hidenori Takahashi, The Univ. of Tokyo (Japan)
Yuto Kojima, The Univ. of Tokyo (Japan)
Mamoru Doi, The Univ. of Tokyo (Japan)
Naoto Kobayashi, The Univ. of Tokyo (Japan)
Tsutomu Aoki, The Univ. of Tokyo (Japan)
Noriaki Arima, The Univ. of Tokyo (Japan)
Ko Arimatsu, National Astronomical Observatory of Japan (Japan)
Makoto Ichiki, The Univ. of Tokyo (Japan)
Shiro Ikeda, The Institute of Statistical Mathematics (Japan)
Kota Inooka, National Astronomical Observatory of Japan (Japan)
Yoshifusa Ita, Tohoku Univ. (Japan)
Toshihiro Kasuga, Kyoto Univ. (Japan)
Mitsuru Kokubo, Tohoku Univ. (Japan)
Masahiro Konishi, The Univ. of Tokyo (Japan)
Hiroyuki Maehara, National Astronomical Observatory of Japan (Japan)
Noriyuki Matsunaga, The Univ. of Tokyo (Japan)
Kazuma Mitsuda, Tohoku Univ. (Japan)
Takashi Miyata, The Univ. of Tokyo (Japan)
Yuki Mori, The Univ. of Tokyo (Japan)
Mikio Morii, The Institute of Statistical Mathematics (Japan)
Tomoki Morokuma, The Univ. of Tokyo (Japan)
Kentaro Motohara, The Univ. of Tokyo (Japan)
Yoshikazu Nakada, The Univ. of Tokyo (Japan)
Shin-Ichiro Okumura, Japan Space Guard Association (Japan)
Yuki Sarugaku, Kyoto Sangyo Univ. (Japan)
Mikiya Sato, The Nippon Meteor Society (Japan)
Toshikazu Shigeyama, The Univ. of Tokyo (Japan)
Takao Soyano, The Univ. of Tokyo (Japan)
Masaomi Tanaka, Tohoku Univ. (Japan)
Ken'ichi Tarusawa, The Univ. of Tokyo (Japan)
Nozomu Tominaga, Konan Univ. (Japan)
Tomonori Totani, The Univ. of Tokyo (Japan)
Seitaro Urakawa, Japan Space Guard Association (Japan)
Fumihiko Usui, Kobe Univ. (Japan)
Junichi Watanabe, National Astronomical Observatory of Japan (Japan)
Takuya Yamashita, National Astronomical Observatory of Japan (Japan)
Makoto Yoshikawa, Japan Aerospace Exploration Agency (Japan)


Published in SPIE Proceedings Vol. 10702:
Ground-based and Airborne Instrumentation for Astronomy VII
Christopher J. Evans; Luc Simard; Hideki Takami, Editor(s)

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