16 - 21 June 2024
Yokohama, Japan
Conference 13093 > Paper 13093-228
Paper 13093-228

Initial operations of the Soft X-ray Imager onboard XRISM

On demand | Presented live 19 June 2024

Abstract

XRISM (X-Ray Imaging and Spectroscopy Mission) is an astronomical satellite with the capability of highresolution spectroscopy with the X-ray microcalorimeter, Resolve, and wide field-of-view imaging with the CCD camera, Xtend. The Xtend consists of the mirror assembly (XMA: X-ray Mirror Assembly) and detector (SXI: Soft X-ray Imager). The components of SXI include CCDs, analog and digital electronics, and a mechanical cooler. After the successful launch on September 6th, 2023 (UT) and subsequent critical operations, the mission instruments were turned on and set up. The CCDs have been kept at the designed operating temperature of −110°C after the electronics and cooling system were successfully set up. During the initial operation phase, which continued for more than a month after the critical operations, we verified the observation procedure, stability of the cooling system, all the observation options with different imaging areas and/or timing resolutions, and operations for protection against South Atlantic Anomaly. We optimized the operation procedure and observation parameters including the cooler settings, imaging areas for the specific modes with higher timing resolutions, and event selection algorithm. We summarize our policy and procedure of the initial operations for SXI. We also report on a couple of issues we faced during the initial operations and lessons learned from them.

Presenter

Hiromasa Suzuki
Japan Aerospace Exploration Agency (Japan)
Assistant Professor, Japan Aerospace Exploration Agency, September 2023- RESEARCH EXPERIENCE JSPS Postdoctoral program Konan University, Japan April 2021- August 2023 JSPS research fellowship for young scientists April 2019-2021 Visiting scientist at the Center for Astrophysics | Harvard & Smithsonian, USA August 2019-December 2019 Research Assistant 2016-2018 The University of Tokyo, Japan EDUCATION Ph.D. in Science March 2021 The University of Tokyo, Japan Dissertation title: “Systematic Study of Escape Processes of Cosmic Rays from Supernova Remnants based on Gamma-ray and Thermal X-ray Properties” Master’s degree in Science March 2018 The University of Tokyo, Japan Dissertation title: “Estimation of non-X-ray background in orbit with Hitomi hard X-ray imagers” Bachelor in Science March 2016 The University of Tokyo, Japan
Application tracks: Astrophotonics
Presenter/Author
Hiromasa Suzuki
Japan Aerospace Exploration Agency (Japan)
Author
Tomokage Yoneyama
Chuo Univ. (Japan)
Author
Tokyo Univ. of Science (Japan)
Author
Osaka Univ. (Japan)
Author
Hiroyuki Uchida
Kyoto Univ. (Japan)
Author
Kumiko K. Nobukawa
Kindai Univ. (Japan)
Author
Kouichi Hagino
The Univ. of Tokyo (Japan)
Author
Koji Mori
Univ. of Miyazaki (Japan)
Author
Japan Aerospace Exploration Agency (Japan)
Author
Kanto Gakuin Univ. (Japan)
Author
Konan Univ. (Japan)
Author
Hiroshi Murakami
Tohoku Gakuin Univ. (Japan)
Author
Hideki Uchiyama
Shizuoka Univ. (Japan)
Author
Masayoshi Nobukawa
Nara Univ. of Education (Japan)
Author
Yoshiaki Kanemaru
Japan Aerospace Exploration Agency (Japan)
Author
Univ. of Miyazaki (Japan)
Author
Univ. of Miyazaki (Japan)
Author
Univ. of Miyazaki (Japan)
Author
Univ. of Miyazaki (Japan)
Author
Univ. of Miyazaki (Japan)
Author
Univ. of Miyazaki (Japan)
Author
Univ. of Miyazaki (Japan)
Author
Osaka Univ. (Japan)
Author
Osaka Univ. (Japan)
Author
Osaka Univ. (Japan)
Author
Yuma Aoki
Kindai Univ. (Japan)
Author
Kindai Univ. (Japan)
Author
Kindai Univ. (Japan)
Author
Kindai Univ. (Japan)
Author
Tokyo Univ. of Science (Japan)
Author
Tokyo Univ. of Science (Japan)
Author
Tokyo Univ. of Science (Japan)
Author
Tokyo Univ. of Science (Japan)
Author
Kanto Gakuin Univ. (Japan)
Author
Hiroshima Univ. (Japan)
Author
Konan Univ. (Japan)
Author
Kyoto Univ. (Japan)
Author
Tokyo Univ. of Science (Japan)
Author
Univ. of Miyazaki (Japan)
Author
Isamu Hatsukade
Univ. of Miyazaki (Japan)
Author
Osaka Univ. (Japan)
Author
Osaka Univ. (Japan)
Author
Hiroshima Univ. (Japan)
Author
Japan Aerospace Exploration Agency (Japan)
Author
Japan Aerospace Exploration Agency (Japan)
Author
Japan Aerospace Exploration Agency (Japan)
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Kyoto Univ. (Japan)
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Nagoya Univ. (Japan)
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NASA Goddard Space Flight Ctr. (United States)
Author
Univ. of Maryland, Baltimore County (United States)
Author
Junko S. Hiraga
Kwansei Gakuin Univ. (Japan)
Author
National Astronomical Observatory of Japan (Japan)
Author
Japan Aerospace Exploration Agency (Japan)
Author
Osaka Univ. (Japan)
Author
Osaka Univ. (Japan)