The Tomo-e Gozen wide field CMOS camera for the Kiso Schmidt telescope

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

doi:10.1117/12.2310049

6 July 2018 The Tomo-e Gozen wide field CMOS camera for the Kiso Schmidt telescope

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

Author Affiliations +

Proceedings Volume 10702, Ground-based and Airborne Instrumentation for Astronomy VII; 107020J (2018) https://doi.org/10.1117/12.2310049
Event: SPIE Astronomical Telescopes + Instrumentation, 2018, Austin, Texas, United States

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.

Conference Presentation

Citation Download Citation

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, and Makoto Yoshikawa "The Tomo-e Gozen wide field CMOS camera for the Kiso Schmidt telescope", Proc. SPIE 10702, Ground-based and Airborne Instrumentation for Astronomy VII, 107020J (6 July 2018); https://doi.org/10.1117/12.2310049

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