Status of Xtend telescope onboard X-Ray Imaging and Spectroscopy Mission (XRISM)

Koji Mori; Hiroshi Tomida; Hiroshi Nakajima; Takashi Okajima; Hirofumi Noda; Hiroyuki Uchida; Hiromasa Suzuki; Shogo Benjamin Kobayashi; Tomokage Yoneyama; Kouichi Hagino; Kumiko Nobukawa; Takaaki Tanaka; Hiroshi Murakami; Hideki Uchiyama; Masayoshi Nobukawa; Hironori Matsumoto; Takeshi Tsuru; Makoto Yamauchi; Isamu Hatsukade; Hirokazu Odaka; Takayoshi Kohmura; Kazutaka Yamaoka; Manabu Ishida; Yoshitomo Maeda; Takayuki Hayashi; Keisuke Tamura; Rozenn Boissay-Malaquin; Toshiki Sato; Tessei Yoshida; Yoshiaki Kanemaru; Junko Hiraga; Tadayasu Dotani; Masanobu Ozaki; Hiroshi Tsunemi; Shun Inoue; Ryuichi Azuma; Yoh Asahina; Shutaro Nakamura; Takamitsu Kamei; Masahiro Fukuda; Kazunori Asakura; Marina Yoshimoto; Yuichi Ode; Tomohiro Hakamata; Mio Aoyagi; Kohei Shima; Yuma Aoki; Yamato Ito; Daiki Aoki; Kaito Fujisawa; Yasuyuki Shimizu; Mayu Higuchi; Keitaro Miyazaki; Kohei Kusunoki; Yoshinori Otsuka; Haruhiko Yokosu; Wakana Yonemaru; Kazuhiro Ichikawa; Hanako Nakano; Reo Takemoto; Tsukasa Matsushima; Kiyoshi Hayashida

doi:10.1117/12.3019804

21 August 2024 Status of Xtend telescope onboard X-Ray Imaging and Spectroscopy Mission (XRISM)

Koji Mori, Hiroshi Tomida, Hiroshi Nakajima, Takashi Okajima, Hirofumi Noda, Hiroyuki Uchida, Hiromasa Suzuki, Shogo Benjamin Kobayashi, Tomokage Yoneyama, Kouichi Hagino, Kumiko Nobukawa, Takaaki Tanaka, Hiroshi Murakami, Hideki Uchiyama, Masayoshi Nobukawa, Hironori Matsumoto, Takeshi Tsuru, Makoto Yamauchi, Isamu Hatsukade, Hirokazu Odaka, Takayoshi Kohmura, Kazutaka Yamaoka, Manabu Ishida, Yoshitomo Maeda, Takayuki Hayashi, Keisuke Tamura, Rozenn Boissay-Malaquin, Toshiki Sato, Tessei Yoshida, Yoshiaki Kanemaru, Junko Hiraga, Tadayasu Dotani, Masanobu Ozaki, Hiroshi Tsunemi, Shun Inoue, Ryuichi Azuma, Yoh Asahina, Shutaro Nakamura, Takamitsu Kamei, Masahiro Fukuda, Kazunori Asakura, Marina Yoshimoto, Yuichi Ode, Tomohiro Hakamata, Mio Aoyagi, Kohei Shima, Yuma Aoki, Yamato Ito, Daiki Aoki, Kaito Fujisawa, Yasuyuki Shimizu, Mayu Higuchi, Keitaro Miyazaki, Kohei Kusunoki, Yoshinori Otsuka, Haruhiko Yokosu, Wakana Yonemaru, Kazuhiro Ichikawa, Hanako Nakano, Reo Takemoto, Tsukasa Matsushima, Kiyoshi Hayashida

Author Affiliations +

Proceedings Volume 13093, Space Telescopes and Instrumentation 2024: Ultraviolet to Gamma Ray; 130931I (2024) https://doi.org/10.1117/12.3019804
Event: SPIE Astronomical Telescopes + Instrumentation, 2024, Yokohama, Japan

Abstract

Xtend is one of the two telescopes onboard the X-ray imaging and spectroscopy mission (XRISM), which was launched on September 7th, 2023. Xtend comprises the Soft X-ray Imager (SXI), an X-ray CCD camera, and the X-ray Mirror Assembly (XMA), a thin-foil-nested conically approximated Wolter-I optics. A large field of view of 38′ × 38′ over the energy range from 0.4 to 13 keV is realized by the combination of the SXI and XMA with a focal length of 5.6 m. The SXI employs four P-channel, back-illuminated type CCDs with a thick depletion layer of 200 μm. The four CCD chips are arranged in a 2×2 grid and cooled down to −110°C with a single-stage Stirling cooler. Before the launch of XRISM, we conducted a month-long spacecraft thermal vacuum test. The performance verification of the SXI was successfully carried out in a course of multiple thermal cycles of the spacecraft. About a month after the launch of XRISM, the SXI was carefully activated and the soundness of its functionality was checked by a step-by-step process. Commissioning observations followed the initial operation. We here present pre- and post-launch results verifying the Xtend performance. All the in-orbit performances are consistent with those measured on ground and satisfy the mission requirement. Extensive calibration studies are ongoing.

Conference Presentation

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

Citation Download Citation

Koji Mori, Hiroshi Tomida, Hiroshi Nakajima, Takashi Okajima, Hirofumi Noda, Hiroyuki Uchida, Hiromasa Suzuki, Shogo Benjamin Kobayashi, Tomokage Yoneyama, Kouichi Hagino, Kumiko Nobukawa, Takaaki Tanaka, Hiroshi Murakami, Hideki Uchiyama, Masayoshi Nobukawa, Hironori Matsumoto, Takeshi Tsuru, Makoto Yamauchi, Isamu Hatsukade, Hirokazu Odaka, Takayoshi Kohmura, Kazutaka Yamaoka, Manabu Ishida, Yoshitomo Maeda, Takayuki Hayashi, Keisuke Tamura, Rozenn Boissay-Malaquin, Toshiki Sato, Tessei Yoshida, Yoshiaki Kanemaru, Junko Hiraga, Tadayasu Dotani, Masanobu Ozaki, Hiroshi Tsunemi, Shun Inoue, Ryuichi Azuma, Yoh Asahina, Shutaro Nakamura, Takamitsu Kamei, Masahiro Fukuda, Kazunori Asakura, Marina Yoshimoto, Yuichi Ode, Tomohiro Hakamata, Mio Aoyagi, Kohei Shima, Yuma Aoki, Yamato Ito, Daiki Aoki, Kaito Fujisawa, Yasuyuki Shimizu, Mayu Higuchi, Keitaro Miyazaki, Kohei Kusunoki, Yoshinori Otsuka, Haruhiko Yokosu, Wakana Yonemaru, Kazuhiro Ichikawa, Hanako Nakano, Reo Takemoto, Tsukasa Matsushima, and Kiyoshi Hayashida "Status of Xtend telescope onboard X-Ray Imaging and Spectroscopy Mission (XRISM)", Proc. SPIE 13093, Space Telescopes and Instrumentation 2024: Ultraviolet to Gamma Ray, 130931I (21 August 2024); https://doi.org/10.1117/12.3019804

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