Trigger performance evaluation and anti-coincidence demonstration of an event-driven SOI pixel detector for x-ray astronomy

Takuto Narita; Takeshi Go Tsuru; Mizuki Uenomachi; Tomonori Ikeda; Masamune Matsuda; Hiroyuki Uchida; Ayaki Takeda; Koji Mori; Masataka Yukumoto; Daisuke Izumi; Koyo Magata; Kenji Shimazoe; Hiroyuki Takahashi; Koichi Hagino; Ikuo Kurachi; Yasuo Arai; Takayoshi Kohmura; Takaaki Tanaka

doi:10.1117/12.3018688

27 August 2024 Trigger performance evaluation and anti-coincidence demonstration of an event-driven SOI pixel detector for x-ray astronomy

Takuto Narita, Takeshi Go Tsuru, Mizuki Uenomachi, Tomonori Ikeda, Masamune Matsuda, Hiroyuki Uchida, Ayaki Takeda, Koji Mori, Masataka Yukumoto, Daisuke Izumi, Koyo Magata, Kenji Shimazoe, Hiroyuki Takahashi, Koichi Hagino, Ikuo Kurachi, Yasuo Arai, Takayoshi Kohmura, Takaaki Tanaka

Author Affiliations +

Proceedings Volume 13103, X-Ray, Optical, and Infrared Detectors for Astronomy XI; 131031L (2024) https://doi.org/10.1117/12.3018688
Event: SPIE Astronomical Telescopes + Instrumentation, 2024, Yokohama, Japan

Conference Poster

Abstract

We are developing x-ray Silicon-On-Insulator (SOI) pixel sensors, called "XRPIX" for the next generation x-ray astronomy satellites. The XRPIX has the unique function of event trigger and hit address outputs allowing us to read out signals only from the x-ray detected pixels. In order to use the XRPIX for the x-ray observatories, the sufficient time resolution is required to discriminate non x-ray events using the anti-coincidence method. For this method, a hit trigger of the XRPIX with a short delay and jitter time (~10μs) is required since the typical hitting rate of the high-energy background events on active shields is ~10kHz. Therefore, we have evaluated the trigger performance using the laser-generated pseudo-x-ray instead of x-ray sources. This allows us to easily control the timing, the position, and the energy of the hit events on the XRPIX. We estimated trigger's delay and jitter time to be ≲1μs. Here, we will report on the results of the trigger evaluation.

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

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Takuto Narita, Takeshi Go Tsuru, Mizuki Uenomachi, Tomonori Ikeda, Masamune Matsuda, Hiroyuki Uchida, Ayaki Takeda, Koji Mori, Masataka Yukumoto, Daisuke Izumi, Koyo Magata, Kenji Shimazoe, Hiroyuki Takahashi, Koichi Hagino, Ikuo Kurachi, Yasuo Arai, Takayoshi Kohmura, and Takaaki Tanaka "Trigger performance evaluation and anti-coincidence demonstration of an event-driven SOI pixel detector for x-ray astronomy", Proc. SPIE 13103, X-Ray, Optical, and Infrared Detectors for Astronomy XI, 131031L (27 August 2024); https://doi.org/10.1117/12.3018688

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