Proton radiation damage tolerance of wide dynamic range SOI pixel detectors

Shun Tsunomachi; Takayoshi Kohmura; Kouichi Hagino; Masatoshi Kitajima; Toshiki Doi; Daiki Aoki; Asuka Ohira; Yasuyuki Shimizu; Kaito Fujisawa; Shizusa Yamazaki; Yuusuke Uchida; Makoto Shimizu; Naoki Itoh; Yasuo Arai; Toshinobu Miyoshi; Ryutaro Nishimura; Takeshi Go Tsuru; Ikuo Kurachi

doi:10.1117/12.2629771

29 August 2022 Proton radiation damage tolerance of wide dynamic range SOI pixel detectors

Shun Tsunomachi, Takayoshi Kohmura, Kouichi Hagino, Masatoshi Kitajima, Toshiki Doi, Daiki Aoki, Asuka Ohira, Yasuyuki Shimizu, Kaito Fujisawa, Shizusa Yamazaki, Yuusuke Uchida, Makoto Shimizu, Naoki Itoh, Yasuo Arai, Toshinobu Miyoshi, Ryutaro Nishimura, Takeshi Go Tsuru, Ikuo Kurachi

Author Affiliations +

Proceedings Volume 12191, X-Ray, Optical, and Infrared Detectors for Astronomy X; 121910C (2022) https://doi.org/10.1117/12.2629771
Event: SPIE Astronomical Telescopes + Instrumentation, 2022, Montréal, Québec, Canada

Abstract

We have been developing the SOI pixel detector “INTPIX” for space use and general purpose applications such as the residual stress measurement of a rail and high energy physics experiments. INTPIX is a monolithic pixel detector composed of a high-resistivity Si sensor, a SiO₂ insulator, and CMOS pixel circuits utilizing Silicon-On- Insulator (SOI) technology. We have considered the possibility of using INTPIX to observe X-ray polarization in space. When the semiconductor detector is used in space, it is subject to radiation damage resulting from high-energy protons. Therefore, it is necessary to investigate whether INTPIX has high radiation tolerance for use in space. The INTPIX8 was irradiated with 6 MeV protons up to a total dose of 2 krad at HIMAC, National Institute of Quantum Science in Japan, and evaluated the degradation of the performance, such as energy resolution and non-uniformity of gain and readout noise between pixels. After 500 rad irradiation, which is the typical lifetime of an X-ray astronomy satellite, the degradation of energy resolution at 14.4 keV is less than 10%, and the non-uniformity of readout noise and gain between pixels is constant within 0.1%.

Conference Presentation

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Shun Tsunomachi, Takayoshi Kohmura, Kouichi Hagino, Masatoshi Kitajima, Toshiki Doi, Daiki Aoki, Asuka Ohira, Yasuyuki Shimizu, Kaito Fujisawa, Shizusa Yamazaki, Yuusuke Uchida, Makoto Shimizu, Naoki Itoh, Yasuo Arai, Toshinobu Miyoshi, Ryutaro Nishimura, Takeshi Go Tsuru, and Ikuo Kurachi "Proton radiation damage tolerance of wide dynamic range SOI pixel detectors", Proc. SPIE 12191, X-Ray, Optical, and Infrared Detectors for Astronomy X, 121910C (29 August 2022); https://doi.org/10.1117/12.2629771

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