Development of a fast readout system of a CMOS image sensor for the time-domain astronomy

Naoki Ogino; Makoto Arimoto; Tatsuya Sawano; Daisuke Yonetoku; Hatsune Goto; Wang Hyeongsoon; Junko Hiraga; Takanori Sakamoto; Kensyo Sei; Yoichi Yatsu

doi:10.1117/12.2560605

13 December 2020 Development of a fast readout system of a CMOS image sensor for the time-domain astronomy

Naoki Ogino, Makoto Arimoto, Tatsuya Sawano, Daisuke Yonetoku, Hatsune Goto, Wang Hyeongsoon, Junko Hiraga, Takanori Sakamoto, Kensyo Sei, Yoichi Yatsu

Author Affiliations +

Proceedings Volume 11444, Space Telescopes and Instrumentation 2020: Ultraviolet to Gamma Ray; 114445L (2020) https://doi.org/10.1117/12.2560605
Event: SPIE Astronomical Telescopes + Instrumentation, 2020, Online Only

Conference Poster

Abstract

In this paper we report on development of an FPGA-based fast readout system of a CMOS image sensor for the future satellite mission HiZ-GUNDAM observing gamma-ray bursts (GRBs) in the 0.4–4 keV band. Since the typical durations of GRBs are about 0.1–100 s, an X-ray photon-counting capability with a time resolution of < 0.1 s is required. The FPGA-based signal processing system has the following functions: (1) take images with a few million pixels at a frame rate of >10 frames per second, (2) extract X-ray events by image subtraction, (3) compile position and energy information of the obtained X-ray events, and (4) transfer the information to an external CPU. A more detailed system configuration is reported.

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Naoki Ogino, Makoto Arimoto, Tatsuya Sawano, Daisuke Yonetoku, Hatsune Goto, Wang Hyeongsoon, Junko Hiraga, Takanori Sakamoto, Kensyo Sei, and Yoichi Yatsu "Development of a fast readout system of a CMOS image sensor for the time-domain astronomy", Proc. SPIE 11444, Space Telescopes and Instrumentation 2020: Ultraviolet to Gamma Ray, 114445L (13 December 2020); https://doi.org/10.1117/12.2560605

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