Prof. Takayoshi Kohmura Profile

Prof. Takayoshi Kohmura

at Tokyo Univ of Science

SPIE Involvement:

Author

Publications (52)

SPIE Journal Paper | 18 October 2022 Open Access

Open Access

Single event tolerance of x-ray silicon-on-insulator pixel sensors

Kouichi Hagino, Mitsuki Hayashida, Takayoshi Kohmura, Toshiki Doi, Shun Tsunomachi, Masatoshi Kitajima, Takeshi Go Tsuru, Hiroyuki Uchida, Kazuho Kayama, Koji Mori, Ayaki Takeda, Yusuke Nishioka, Masataka Yukumoto, Kira Mieda, Syuto Yonemura, Tatsunori Ishida, Takaaki Tanaka, Yasuo Arai, Ikuo Kurachi, Hisashi Kitamura, Shoji Kawahito, Keita Yasutomi

JATIS, Vol. 8, Issue 04, 046001, (October 2022) https://doi.org/10.1117/12.10.1117/1.JATIS.8.4.046001

KEYWORDS: X-rays, Tolerancing, Sensors, Silicon, Satellites, Ions, Particles, X-ray astronomy, Digital electronics, Satellite imaging

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Proceedings Article | 31 August 2022 Presentation + Paper

Presentation + Paper

Xtend, the soft x-ray imaging telescope for the X-Ray Imaging and Spectroscopy Mission (XRISM)

Koji Mori, Hiroshi Tomida, Hiroshi Nakajima, Takashi Okajima, Hirofumi Noda, Takaaki Tanaka, Hiroyuki Uchida, Kouichi Hagino, Shogo Benjamin Kobayashi, Hiromasa Suzuki, Tessei Yoshida, Hiroshi Murakami, Hideki Uchiyama, Masayoshi Nobukawa, Kumiko Nobukawa, Tomokage Yoneyama, Hironori Matsumoto, Takeshi Tsuru, Makoto Yamauchi, Isamu Hatsukade, Manabu Ishida, Yoshitomo Maeda, Takayuki Hayashi, Keisuke Tamura, Rozenn Boissay-Malaquin, Toshiki Sato, Junko Hiraga, Takayoshi Kohmura, Kazutaka Yamaoka, Tadayasu Dotani, Masanobu Ozaki, Hiroshi Tsunemi, Yoshiaki Kanemaru, Jin Sato, Toshiyuki Takaki, Yuta Terada, Keitaro Miyazaki, Kohei Kusunoki, Yoshinori Otsuka, Haruhiko Yokosu, Wakana Yonemaru, Yoh Asahina, Kazunori Asakura, Marina Yoshimoto, Yuichi Ode, Junya Sato, Tomohiro Hakamata, Mio Aoyagi, Yuma Aoki, Shun Tsunomachi, Toshiki Doi, Daiki Aoki, Kaito Fujisawa, Masatoshi Kitajima, Kiyoshi Hayashida

Proceedings Volume 12181, 121811T (2022) https://doi.org/10.1117/12.2626894

KEYWORDS: Charge-coupled devices, X-rays, X-ray imaging, Calibration, CCD cameras, Imaging spectroscopy, Spectroscopy, Cameras, Space operations, Aluminum

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Proceedings Article | 31 August 2022 Presentation + Paper

Presentation + Paper

A broadband x-ray imaging spectroscopy in the 2030s: the FORCE mission

Koji Mori, Takeshi Tsuru, Kazuhiro Nakazawa, Yoshihiro Ueda, Shin Watanabe, Takaaki Tanaka, Manabu Ishida, Hironori Matsumoto, Hisamitsu Awaki, Hiroshi Murakami, Masayoshi Nobukawa, Ayaki Takeda, Yasushi Fukazawa, Hiroshi Tsunemi, Tadayuki Takahashi, Ann Hornschemeier, Takashi Okajima, William Zhang, Brian Williams, Tonia Venters, Kristin Madsen, Mihoko Yukita, Hiroki Akamatsu, Aya Bamba, Teruaki Enoto, Yutaka Fujita, Akihiro Furuzawa, Kouichi Hagino, Kosei Ishimura, Masayuki Itoh, Tetsu Kitayama, Shogo Kobayashi, Takayoshi Kohmura, Aya Kubota, Misaki Mizumoto, Tsunefumi Mizuno, Hiroshi Nakajima, Kumiko Nobukawa, Hirofumi Noda, Hirokazu Odaka, Naomi Ota, Toshiki Sato, Megumi Shidatsu, Hiromasa Suzuki, Hiromitsu Takahashi, Atsushi Tanimoto, Yukikatsu Terada, Yuichi Terashima, Hiroyuki Uchida, Yasunobu Uchiyama, Hiroya Yamaguchi, Yoichi Yatsu

Proceedings Volume 12181, 1218122 (2022) https://doi.org/10.1117/12.2628772

KEYWORDS: X-rays, Hard x-rays, Mirrors, Galactic astronomy, Sensors, Physics, X-ray imaging, Spatial resolution, Silicon

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Proceedings Article | 29 August 2022 Presentation + Paper

Presentation + Paper

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

Proceedings Volume 12191, 121910C (2022) https://doi.org/10.1117/12.2629771

KEYWORDS: Sensors, X-rays, Silicon, Tolerancing, Polarization, CMOS sensors, Semiconductors, X-ray detectors

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Proceedings Article | 29 August 2022 Presentation

Presentation

Recent progress in development of trigger-output event-driven x-ray astronomy SOI pixel sensors

Takeshi Go Tsuru, Hiroyuki Uchida, Kazuho Kayama, Yuki Amano, Koji Mori, Ayaki Takeda, Yusuke Nishioka, Masataka Yukumoto, Kira Mieda, Shuto Yonemura, Tatsunori Ishida, Daisuke Izumi, Uzuki Iwakiri, Towa Umeno, Rikuto Kawashima, Koyo Magata, Takaaki Tanaka, Hiromasa Suzuki, Takayoshi Kohmura, Kouichi Hagino, Masatoshi Kitajima, Toshiki Doi, Kumiko Nobukawa, Yasuo Arai, Ikuo Kurachi, Kenji Shimazoe, Shoji Kawahito, Keita Yasutomi

Proceedings Volume 12191, 121910K (2022) https://doi.org/10.1117/12.2628755

KEYWORDS: Sensors, X-ray astronomy, X-rays, Satellites, X-ray technology, Silicon, Oxides, Image resolution, Diodes, Digital electronics

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SPIE Journal Paper | 17 June 2022 Open Access

Open Access

X-ray radiation damage effects on double-SOI pixel detectors for the future astronomical satellite FORCE

Masatoshi Kitajima, Kouichi Hagino, Takayoshi Kohmura, Mitsuki Hayashida, Kenji Oono, Kousuke Negishi, Keigo Yarita, Toshiki Doi, Shun Tsunomachi, Takeshi Go Tsuru, Hiroyuki Uchida, Kazuho Kayama, Ryota Kodama, Takaaki Tanaka, Koji Mori, Ayaki Takeda, Yusuke Nishioka, Masataka Yukumoto, Kira Mieda, Shuto Yonemura, Tatsunori Ishida, Yasuo Arai, Ikuo Kurachi

JATIS, Vol. 8, Issue 02, 026007, (June 2022) https://doi.org/10.1117/12.10.1117/1.JATIS.8.2.026007

KEYWORDS: X-rays, Sensors, Radiation effects, X-ray detectors, Silicon, Electrons, Interfaces, Satellites, Iron, X-ray astronomy

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SPIE Journal Paper | 9 August 2021

Proton radiation hardness of x-ray SOI pixel sensors with pinned depleted diode structure

Mitsuki Hayashida, Kouichi Hagino, Takayoshi Kohmura, Masatoshi Kitajima, Keigo Yarita, Kenji Oono, Kousuke Negishi, Takeshi Tsuru, Takaaki Tanaka, Hiroyuki Uchida, Kazuho Kayama, Ryota Kodama, Koji Mori, Ayaki Takeda, Yusuke Nishioka, Takahiro Hida, Masataka Yukumoto, Yasuo Arai, Ikuo Kurachi, Hisashi Kitamura, Shoji Kawahito, Keita Yasutomi

JATIS, Vol. 7, Issue 03, 036001, (August 2021) https://doi.org/10.1117/12.10.1117/1.JATIS.7.3.036001

KEYWORDS: X-rays, Sensors, Diodes, Silicon, CMOS sensors, Capacitance, Satellites, CMOS technology, X-ray detectors, X-ray technology

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X-ray silicon-on-insulator (SOI) pixel sensors, “XRPIX,” are being developed for the next-generation x-ray astronomical satellite, “FORCE.” The XRPIX is fabricated with the SOI technology, which makes it possible to integrate a high-resistivity Si sensor and a low-resistivity Si complementary metal oxide semiconductor (CMOS) circuit. The CMOS circuit in each pixel is equipped with a trigger function, allowing us to read out outputs only from the pixels with x-ray signals at the timing of x-ray detection. This function thus realizes high throughput and high time resolution, which enables to employ anti-coincidence technique for background rejection. A new series of XRPIX named XRPIX6E developed with a pinned depleted diode (PDD) structure improves spectral performance by suppressing the interference between the sensor and circuit layers. When semiconductor x-ray sensors are used in space, their spectral performance is generally degraded owing to the radiation damage caused by high-energy protons. Therefore, before using an XRPIX in space, it is necessary to evaluate the extent of degradation of its spectral performance by radiation damage. Thus, we performed a proton irradiation experiment for XRPIX6E for the first time at Heavy Ion Medical Accelerator in Chiba in the National Institute of Radiological Sciences. We irradiated XRPIX6E with high-energy protons with a total dose of up to 40 krad, equivalent to 400 years of irradiation in orbit. The 40-krad irradiation degraded the energy resolution of XRPIX6E by 25 ± 3 % , yielding an energy resolution of 260.1 ± 5.6 eV at the full-width half maximum for 5.9 keV X-rays. However, the value satisfies the requirement for FORCE, 300 eV at 6 keV, even after the irradiation. It was also found that the PDD XRPIX has enhanced radiation hardness compared to previous XRPIX devices. In addition, we investigated the degradation of the energy resolution; it was shown that the degradation would be due to increasing energy-independent components, e.g., readout noise.

Proceedings Article | 28 December 2020 Presentation + Paper

Presentation + Paper

Proton radiation hardness of x-ray SOI pixel detectors with pinned depleted diode structure

Mitsuki Hayashida, Takayoshi Kohmura, Kouichi Hagino, Kenji Oono, Kousuke Negishi, Keigo Yarita, Masatoshi Kitajima, Takeshi G. Tsuru, Takaaki Tanaka, Hiroyuki Uchida, Kazuho Kayama, Ryota Kodama, Koji Mori, Ayaki Takeda, Yusuke Nishioka, Takahiro Hida, Masataka Yukumoto, Yasuo Arai, Ikuo Kurachi, Tsuyoshi Hamano, Hisashi Kitamura, Shoji Kawahito, Keita Yasutomi

Proceedings Volume 11454, 114540P (2020) https://doi.org/10.1117/12.2562392

KEYWORDS: Sensors, X-rays, X-ray detectors, Diodes, Satellites, CMOS sensors, Detector development, X-ray astronomy, Astronomy, Silicon

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Proceedings Article | 13 December 2020 Presentation + Paper

Presentation + Paper

Status of x-ray imaging and spectroscopy mission (XRISM)

Makoto Tashiro, Hironori Maejima, Kenichi Toda, Richard Kelley, Lillian Reichenthal, Leslie Hartz, Robert Petre, Brian Williams, Matteo Guainazzi, Elisa Costantini, Ryuichi Fujimoto, Kiyoshi Hayashida, Joy Henegar-Leon, Matt Holland, Yoshitaka Ishisaki, Caroline Kilbourne, Mike Loewenstein, Kyoko Matsushita, Koji Mori, Takashi Okajima, F. Scott Porter, Gary Sneiderman, Yoh Takei, Yukikatsu Terada, Hiroshi Tomida, Hiroya Yamaguchi, Shin Watanabe, Hiroki Akamatsu, Yoshitaka Arai, Marc Audard, Hisamitsu Awaki, Iurii Babyk, Aya Bamba, Nobutaka Bando, Ehud Behar, Thomas Bialas, Rozenn Boissay-Malaquin, Laura Brenneman, Greg Brown, Edgar Canavan, Meng Chiao, Brian Comber, Lia Corrales, Renata Cumbee, Cor de Vries, Jan-Willem den Herder, Johannes Dercksen, Maria Diaz-Trigo, Michael DiPirro, Chris Done, Tadayasu Dotani, Ken Ebisawa, Megan Eckart, Dominique Eckert, Satoshi Eguchi, Teruaki Enoto, Yuichiro Ezoe, Carlo Ferrigno, Yutaka Fujita, Yasushi Fukazawa, Akihiro Furuzawa, Luigi Gallo, Nathalie Gorter, Martin Grim, Liyi Gu, Kouichi Hagino, Kenji Hamaguchi, Isamu Hatsukade, David Hawthorn, Katsuhiro Hayashi, Natalie Hell, Junko Hiraga, Edmund Hodges-Kluck, Takafumi Horiuchi, Ann Hornschemeier, Akio Hoshino, Yuto Ichinohe, Sayuri Iga, Ryo Iizuka, Manabu Ishida, Naoki Ishihama, Kumi Ishikawa, Kosei Ishimura, Tess Jaffe, Jelle Kaastra, Timothy Kallman, Erin Kara, Satoru Katsuda, Steven Kenyon, Mark Kimball, Takao Kitaguchi, Shunji Kitamoto, Shogo Kobayashi, Akihide Kobayashi, Takayoshi Kohmura, Aya Kubota, Maurice Leutenegger, Muzi Li, Tom Lockard, Yoshitomo Maeda, Maxim Markevitch, Connor Martz, Hironori Matsumoto, Keiichi Matsuzaki, Dan McCammon, Brian McLaughlin, Brian McNamara, Joseph Miko, Eric Miller, Jon Miller, Kenji Minesugi, Shinji Mitani, Ikuyuki Mitsuishi, Misaki Mizumoto, Tsunefumi Mizuno, Koji Mukai, Hiroshi Murakami, Richard Mushotzky, Hiroshi Nakajima, Hideto Nakamura, Kazuhiro Nakazawa, Chikara Natsukari, Kenichiro Nigo, Yusuke Nishioka, Kumiko Nobukawa, Masayoshi Nobukawa, Hirofumi Noda, Hirokazu Odaka, Mina Ogawa, Takaya Ohashi, Masahiro Ohno, Masayuki Ohta, Atsushi Okamoto, Naomi Ota, Masanobu Ozaki, Stephane Paltani, Paul Plucinsky, Katja Pottschmidt, Michael Sampson, Takahiro Sasaki, Kosuke Sato, Rie Sato, Toshiki Sato, Makoto Sawada, Hiromi Seta, Yasuko Shibano, Maki Shida, Megumi Shidatsu, Shuhei Shigeto, Keisuke Shinozaki, Peter Shirron, Aurora Simionescu, Randall Smith, Kazunori Someya, Yang Soong, Keisuke Sugawara, Yasuharu Sugawara, Andy Szymkowiak, Hiromitsu Takahashi, Toshiaki Takeshima, Toru Tamagawa, Keisuke Tamura, Takaaki Tanaka, Atsushi Tanimoto, Yuichi Terashima, Yohko Tsuboi, Masahiro Tsujimoto, Hiroshi Tsunemi, Takeshi Tsuru, Hiroyuki Uchida, Yuusuke Uchida, Hideki Uchiyama, Yoshihiro Ueda, Shinichiro Uno, Jacco Vink, Tomomi Watanabe, Michael Witthoeft, Rob Wolfs, Shinya Yamada, Kazutaka Yamaoka, Noriko Yamasaki, Makoto Yamauchi, Shigeo Yamauchi, Keiichi Yanagase, Tahir Yaqoob, Susumu Yasuda, Tessei Yoshida, Nasa Yoshioka, Irina Zhuravleva

Proceedings Volume 11444, 1144422 (2020) https://doi.org/10.1117/12.2565812

KEYWORDS: X-rays, X-ray imaging, Imaging spectroscopy, Spectroscopy, Spectroscopes, X-ray astronomy, Space operations, Control systems, Image resolution, Mirrors

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Proceedings Article | 13 December 2020 Presentation + Paper

Presentation + Paper

Soft x-ray imager (SXI) for Xtend onboard X-Ray Imaging and Spectroscopy Mission (XRISM)

Hiroshi Nakajima, Kiyoshi Hayashida, Hiroshi Tomida, Koji Mori, Hirofumi Noda, Hironori Matsumoto, Tomokage Yoneyama, Koki Okazaki, Kazunori Asakura, Maho Hanaoka, Kengo Hattori, Ayami Ishikura, Shotaro Sakuma, Takaaki Tanaka, Hiroyuki Uchida, Takeshi Tsuru, Yuki Amano, Hiromichi Okon, Makoto Yamauchi, Isamu Hatsukade, Yusuke Nishioka, Yoshiaki Kanemaru, Jin Sato, Toshiyuki Takaki, Yuta Terada, Tessei Yoshida, Takayoshi Kohmura, Kouichi Hagino, Shogo Kobayashi, Hiroshi Murakami, Hikari Kashimura, Hideki Uchiyama, Kazutaka Yamaoka, Masayoshi Nobukawa, Takashi Sako, Kumiko Nobukawa, Mariko Saito, Junko Hiraga, Yukino Urabe, Masayuki Yoshida, Tadayasu Dotani, Masanobu Ozaki, Hiroshi Tsunemi

Proceedings Volume 11444, 1144423 (2020) https://doi.org/10.1117/12.2560348

KEYWORDS: X-ray imaging, Charge-coupled devices, Imaging spectroscopy, Spectroscopy, X-rays, X-ray telescopes, CCD image sensors, Fermium, Frequency modulation, CCD cameras

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Proceedings Article | 1 August 2018 Presentation + Paper

Presentation + Paper

Kyoto's event-driven x-ray astronomy SOI pixel sensor for the FORCE mission

Takeshi Tsuru, Hideki Hayashi, Katsuhiro Tachibana, Soudai Harada, Hiroyuki Uchida, Takaaki Tanaka, Yasuo Arai, Ikuo Kurachi, Koji Mori, Ayaki Takeda, Yusuke Nishioka, Nobuaki Takebayashi, Shoma Yokoyama, Kohei Fukuda, Takayoshi Kohmura, Kouichi Hagino, Kenji Ohno, Kohsuke Negishi, Keigo Yarita, Shoji Kawahito, Keiichiro Kagawa, Keita Yasutomi, Sumeet Shrestha, Shunta Nakanishi, Hiroki Kamehama, Hideaki Matsumura

Proceedings Volume 10709, 107090H (2018) https://doi.org/10.1117/12.2312098

KEYWORDS: Sensors, X-rays, Silicon, X-ray astronomy, CMOS sensors, X-ray imaging, X-ray detectors, Imaging devices

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Proceedings Article | 10 July 2018 Presentation + Paper

Presentation + Paper

Soft x-ray imaging telescope (Xtend) onboard X-ray Astronomy Recovery Mission (XARM)

Kiyoshi Hayashida, Hiroshi Tomida, Koji Mori, Hiroshi Nakajima, Takaaki Tanaka, Hiroyuki Uchida, Takeshi Tsuru, Hiroshi Murakami, Takashi Okajima, Takayoshi Kohmura, Kouichi Hagino, Shogo Kobayashi, Manabu Ishida, Yoshitomo Maeda, Hideki Uchiyama, Kazutaka Yamaoka, Hironori Matsumoto, Masayoshi Nobukawa, Kumiko Nobukawa, Junko Hiraga, Makoto Yamauchi, Isamu Hatsukade, Yang Soong, Hideyuki Mori, Takayuki Hayashi, Hiroshi Tsunemi, Masanobu Ozaki, Tadayasu Dotani, Junichi Iwagaki, Tomokage Yoneyama, Koki Okazaki, Kazunori Asakura, Satomi Onishi, Yoshiaki Kanemaru, Jin Sato, Yusuke Nishioka, Ayaki Takeda, Hiromichi Okon, Masayuki Yoshida, Takeo Shimoi

Proceedings Volume 10699, 1069923 (2018) https://doi.org/10.1117/12.2311446

KEYWORDS: Charge-coupled devices, X-rays, Aluminum, X-ray telescopes, Coating, X-ray imaging, Mirrors, Satellites, Electronics, Fermium

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Proceedings Article | 10 July 2018 Presentation

Presentation

Proton radiation tolerance of x-ray SOI pixel sensors for space use (Conference Presentation)

Takayoshi Kohmura, Kosuke Hagino, Keigo Yarita, Kenji Oono, Kosuke Negishi, Koki Tamasawa, Takeshi Go Tsuru, Takaaki Tanaka, Hideki Matsumura, Hideki Hayashi, Katsuhiro Tachibana, Sodai Harada, Koji Mori, Ayaki Takeda, Yusuke Nishioka, Nobuaki Takebayashi, Shoma Yokoyama, Kohei Fukuda, Yasuo Arai, Ikuo Kurachi

Proceedings Volume 10699, 106992G (2018) https://doi.org/10.1117/12.2313532

KEYWORDS: X-rays, Sensors, Tolerancing, Space sensors, CMOS technology, X-ray astronomy, X-ray technology, Astronomy, Satellites, Image resolution

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We have developed SOIPIXs based on the CMOS SOI technology for the future X-ray astronomical satellite. SOIPIXs has the event trigger output function implemented in each pixel offers microsecond time resolution and its event trigger function enables to separate celestial X-rays and non-X-ray background by combining the anticoincidence system and to reduce the non-X-ray background that dominates the high X-ray energy band above 5-10 keV. A fully depleted SOIPIXs with a 300-500 um thick depletion layer and back illumination offers wide band coverage of 0.3-40 keV. In order to use XRPIXs in space environment, to investigate the radiation hardness of XRPIXs is important because semiconductor detectors such as XRPIXs and CCDs are damaged by interacting with many cosmic rays which are composed primarily energy protons in orbit. The damage causes the increase of dark current and the degradation of the performance such as the energy resolution of XRPIXs. To evaluate the radiation hardness of XRPIXs, we have carried out the radiation damage test at the heavy ion medical accelerator (HIMAC) in Japan. For this experiment, we used the XRPIX2b-FZ (Takeda et al, 2015) which was the front illuminated XRPIX with 300um thick depletion layer. XRPIX2b-FZ has 144 x 144 pixels and the pixel size is 30um x 30 um. We installed XRPIX2b-FZ in the vacuum chamber and cooled it around -80 C degree. The proton beam flux was much strong for our purpose of this experiment, we set the 3 um thick Au film as a scatterers in the cubic flange in front of vacuum chamber in order to reduce the beam flux. We introduced the scattered proton beam to the two direction of the downstream of the beam line, and one was irradiated to XRPIX2b-FZ in the vacuum chamber and the other was irradiated to the faraday cup connected to the cubic flange to monitor the scattered beam flux. We also obtained the total doze of proton beam using the faraday cup. We irradiated the proton beam to XRPIX2b-FZ until the total irradiation dose reached 10 krad while increasing the irradiation dose and evaluated the performance such as leak current, gain and energy resolution using X-ray from 109 Cd after the proton irradiation of 1 rad, 400 rad, 1 k rad, 4 k rad, and 10 krad. From above experimental results, we found that the gain and the energy resolution was degraded by 0.2 % and 10 % respectively with 400 rad whose equivalent time in orbit was 3.5 years, and the gain and energy resolution became worse by 0.8 % and 32 % respectively after irradiation of 4k rad. We investigated the reason of the degradation of the energy resolution and found the degradation was mainly caused by the increasing the read out noise. We also found the number of bad pixels clearly increased by about 10 times after the irradiation of 10 krad.

Proceedings Article | 6 July 2018 Presentation + Paper

Presentation + Paper

Concept of the X-ray Astronomy Recovery Mission

Makoto Tashiro, Hironori Maejima, Kenichi Toda, Richard Kelley, Lillian Reichenthal, James Lobell, Robert Petre, Matteo Guainazzi, Elisa Costantini, Mark Edison, Ryuichi Fujimoto, Martin Grim, Kiyoshi Hayashida, Jan-Willem den Herder, Yoshitaka Ishisaki, Stéphane Paltani, Kyoko Matsushita, Koji Mori, Gary Sneiderman, Yoh Takei, Yukikatsu Terada, Hiroshi Tomida, Hiroki Akamatsu, Lorella Angelini, Yoshitaka Arai, Hisamitsu Awaki, Lurli Babyk, Aya Bamba, Peter Barfknecht, Kim Barnstable, Thomas Bialas, Branimir Blagojevic, Joseph Bonafede, Clifford Brambora, Laura Brenneman, Greg Brown, Kimberly Brown, Laura Burns, Edgar Canavan, Tim Carnahan, Meng Chiao, Brian Comber, Lia Corrales, Cor de Vries, Johannes Dercksen, Maria Diaz-Trigo, Tyrone Dillard, Michael DiPirro, Chris Done, Tadayasu Dotani, Ken Ebisawa, Megan Eckart, Teruaki Enoto, Yuichiro Ezoe, Carlo Ferrigno, Yasushi Fukazawa, Yutaka Fujita, Akihiro Furuzawa, Luigi Gallo, Steve Graham, Liyi Gu, Kohichi Hagino, Kenji Hamaguchi, Isamu Hatsukade, Dean Hawes, Takayuki Hayashi, Cailey Hegarty, Natalie Hell, Junko Hiraga, Edmund Hodges-Kluck, Matt Holland, Ann Hornschemeier, Akio Hoshino, Yuto Ichinohe, Ryo Iizuka, Kazunori Ishibashi, Manabu Ishida, Kumi Ishikawa, Kosei Ishimura, Bryan James, Timothy Kallman, Erin Kara, Satoru Katsuda, Steven Kenyon, Caroline Kilbourne, Mark Kimball, Takao Kitaguti, Shunji Kitamoto, Shogo Kobayashi, Takayoshi Kohmura, Shu Koyama, Aya Kubota, Maurice Leutenegger, Tom Lockard, Mike Loewenstein, Yoshitomo Maeda, Lynette Marbley, Maxim Markevitch, Hironori Matsumoto, Keiichi Matsuzaki, Dan McCammon, Brian McNamara, Joseph Miko, Eric Miller, Jon Miller, Kenji Minesugi, Ikuyuki Mitsuishi, Tsunefumi Mizuno, Hideyuki Mori, Koji Mukai, Hiroshi Murakami, Richard Mushotzky, Hiroshi Nakajima, Hideto Nakamura, Shinya Nakashima, Kazuhiro Nakazawa, Chikara Natsukari, Kenichiro Nigo, Yusuke Nishioka, Kumiko Nobukawa, Masayoshi Nobukawa, Hirofumi Noda, Hirokazu Odaka, Mina Ogawa, Takaya Ohashi, Masahiro Ohno, Masayuki Ohta, Takashi Okajima, Atsushi Okamoto, Michitaka Onizuka, Naomi Ota, Masanobu Ozaki, Paul Plucinsky, F. Scott Porter, Katja Pottschmidt, Kosuke Sato, Rie Sato, Makoto Sawada, Hiromi Seta, Ken Shelton, Yasuko Shibano, Maki Shida, Megumi Shidatsu, Peter Shirron, Aurora Simionescu, Randall Smith, Kazunori Someya, Yang Soong, Yasuharu Suagawara, Andy Szymkowiak, Hiromitsu Takahashi, Toru Tamagawa, Takayuki Tamura, Takaaki Tanaka, Yuichi Terashima, Yohko Tsuboi, Masahiro Tsujimoto, Hiroshi Tsunemi, Takeshi Tsuru, Hiroyuki Uchida, Hideki Uchiyama, Yoshihiro Ueda, Shinichiro Uno, Thomas Walsh, Shin Watanabe, Brian Williams, Rob Wolfs, Michael Wright, Shinya Yamada, Hiroya Yamaguchi, Kazutaka Yamaoka, Noriko Yamasaki, Shigeo Yamauchi, Makoto Yamauchi, Keiichi Yanagase, Tahir Yaqoob, Susumu Yasuda, Nasa Yoshioka, Jaime Zabala, Zhuravleva Irina

Proceedings Volume 10699, 1069922 (2018) https://doi.org/10.1117/12.2309455

KEYWORDS: X-rays, Spectroscopy, Plasma, Galactic astronomy, Iron, Physics, Galaxy groups and clusters, Chemical elements, X-ray astronomy, Stars

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The ASTRO-H mission was designed and developed through an international collaboration of JAXA, NASA, ESA, and the CSA. It was successfully launched on February 17, 2016, and then named Hitomi. During the in-orbit verification phase, the on-board observational instruments functioned as expected. The intricate coolant and refrigeration systems for soft X-ray spectrometer (SXS, a quantum micro-calorimeter) and soft X-ray imager (SXI, an X-ray CCD) also functioned as expected. However, on March 26, 2016, operations were prematurely terminated by a series of abnormal events and mishaps triggered by the attitude control system. These errors led to a fatal event: the loss of the solar panels on the Hitomi mission. The X-ray Astronomy Recovery Mission (or, XARM) is proposed to regain the key scientific advances anticipated by the international collaboration behind Hitomi. XARM will recover this science in the shortest time possible by focusing on one of the main science goals of Hitomi,“Resolving astrophysical problems by precise high-resolution X-ray spectroscopy”.¹ This decision was reached after evaluating the performance of the instruments aboard Hitomi and the mission’s initial scientific results, and considering the landscape of planned international X-ray astrophysics missions in 2020’s and 2030’s. Hitomi opened the door to high-resolution spectroscopy in the X-ray universe. It revealed a number of discrepancies between new observational results and prior theoretical predictions. Yet, the resolution pioneered by Hitomi is also the key to answering these and other fundamental questions. The high spectral resolution realized by XARM will not offer mere refinements; rather, it will enable qualitative leaps in astrophysics and plasma physics. XARM has therefore been given a broad scientific charge: “Revealing material circulation and energy transfer in cosmic plasmas and elucidating evolution of cosmic structures and objects”. To fulfill this charge, four categories of science objectives that were defined for Hitomi will also be pursued by XARM; these include (1) Structure formation of the Universe and evolution of clusters of galaxies; (2) Circulation history of baryonic matters in the Universe; (3) Transport and circulation of energy in the Universe; (4) New science with unprecedented high resolution X-ray spectroscopy. In order to achieve these scientific objectives, XARM will carry a 6 × 6 pixelized X-ray micro-calorimeter on the focal plane of an X-ray mirror assembly, and an aligned X-ray CCD camera covering the same energy band and a wider field of view. This paper introduces the science objectives, mission concept, and observing plan of XARM.

SPIE Journal Paper | 13 March 2018 Open Access

Open Access

Hitomi (ASTRO-H) X-ray Astronomy Satellite

Tadayuki Takahashi, Motohide Kokubun, Kazuhisa Mitsuda, Richard Kelley, Takaya Ohashi, Felix Aharonian, Hiroki Akamatsu, Fumie Akimoto, Steven Allen, Naohisa Anabuki, Lorella Angelini, Keith Arnaud, Makoto Asai, Marc Audard, Hisamitsu Awaki, Magnus Axelsson, Philipp Azzarello, Chris Baluta, Aya Bamba, Nobutaka Bando, Marshall Bautz, Thomas Bialas, Roger Blandford, Kevin Boyce, Laura Brenneman, Gregory Brown, Esra Bulbul, Edward Cackett, Edgar Canavan, Maria Chernyakova, Meng Chiao, Paolo Coppi, Elisa Costantini, Stephen O’ Dell, Michael DiPirro, Chris Done, Tadayasu Dotani, John Doty, Ken Ebisawa, Megan E. Eckart, Teruaki Enoto, Yuichiro Ezoe, Andrew Fabian, Carlo Ferrigno, Adam Foster, Ryuichi Fujimoto, Yasushi Fukazawa, Stefan Funk, Akihiro Furuzawa, Massimiliano Galeazzi, Luigi Gallo, Poshak Gandhi, Kirk Gilmore, Margherita Giustini, Andrea Goldwurm, Liyi Gu, Matteo Guainazzi, Daniel Haas, Yoshito Haba, Kouichi Hagino, Kenji Hamaguchi, Ilana Harrus, Isamu Hatsukade, Takayuki Hayashi, Katsuhiro Hayashi, Kiyoshi Hayashida, Jan-Willem den Herder, Junko Hiraga, Kazuyuki Hirose, Ann Hornschemeier, Akio Hoshino, John Hughes, Yuto Ichinohe, Ryo Iizuka, Hajime Inoue, Yoshiyuki Inoue, Kazunori Ishibashi, Manabu Ishida, Kumi Ishikawa, Kosei Ishimura, Yoshitaka Ishisaki, Masayuki Itoh, Masachika Iwai, Naoko Iwata, Naoko Iyomoto, Christopher Jewell, Jelle Kaastra, Timothy Kallman, Tsuneyoshi Kamae, Erin Kara, Jun Kataoka, Satoru Katsuda, Junichiro Katsuta, Madoka Kawaharada, Nobuyuki Kawai, Taro Kawano, Shigeo Kawasaki, Dmitry Khangulyan, Caroline Kilbourne, Mark Kimball, Ashley King, Takao Kitaguchi, Shunji Kitamoto, Tetsu Kitayama, Takayoshi Kohmura, Saori Konami, Tatsuro Kosaka, Alexander Koujelev, Katsuji Koyama, Shu Koyama, Peter Kretschmar, Hans Krimm, Aya Kubota, Hideyo Kunieda, Philippe Laurent, Shiu-Hang Lee, Maurice Leutenegger, Olivier Limousin, Michael Loewenstein, Knox Long, David Lumb, Grzegorz Madejski, Yoshitomo Maeda, Daniel Maier, Kazuo Makishima, Maxim Markevitch, Candace Masters, Hironori Matsumoto, Kyoko Matsushita, Daniel McCammon, Daniel McGuinness, Brian McNamara, Missagh Mehdipour, Joseph Miko, Eric Miller, Jon Miller, Shin Mineshige, Kenji Minesugi, Ikuyuki Mitsuishi, Takuya Miyazawa, Tsunefumi Mizuno, Hideyuki Mori, Koji Mori, Franco Moroso, Samuel Moseley, Theodore Muench, Koji Mukai, Hiroshi Murakami, Toshio Murakami, Richard Mushotzky, Hosei Nagano, Ryo Nagino, Takao Nakagawa, Hiroshi Nakajima, Takeshi Nakamori, Toshio Nakano, Shinya Nakashima, Kazuhiro Nakazawa, Yoshiharu Namba, Chikara Natsukari, Yusuke Nishioka, Kumiko Nobukawa, Masayoshi Nobukawa, Hirofumi Noda, Masaharu Nomachi, Hirokazu Odaka, Hiroyuki Ogawa, Mina Ogawa, Keiji Ogi, Masanori Ohno, Masayuki Ohta, Takashi Okajima, Atsushi Okamoto, Tsuyoshi Okazaki, Naomi Ota, Masanobu Ozaki, Frederik B. Paerels, Stéphane Paltani, Arvind Parmar, Robert Petre, Ciro Pinto, Jelle de Plaa, Martin Pohl, James Pontius, Frederick Porter, Katja Pottschmidt, Brian Ramsey, Christopher Reynolds, Helen Russell, Samar Safi-Harb, Shinya Saito, Kazuhiro Sakai, Shin-ichiro Sakai, Hiroaki Sameshima, Toru Sasaki, Goro Sato, Kosuke Sato, Rie Sato, Yoichi Sato, Makoto Sawada, Norbert Schartel, Peter Serlemitsos, Hiromi Seta, Yasuko Shibano, Maki Shida, Megumi Shidatsu, Takanobu Shimada, Keisuke Shinozaki, Peter Shirron, Aurora Simionescu, Cynthia Simmons, Randall Smith, Gary Sneiderman, Yang Soong, Łukasz Stawarz, Yasuharu Sugawara, Satoshi Sugita, Hiroyuki Sugita, Andrew Szymkowiak, Hiroyasu Tajima, Hiromitsu Takahashi, Shin'ichiro Takeda, Yoh Takei, Toru Tamagawa, Takayuki Tamura, Keisuke Tamura, Takaaki Tanaka, Yasuo Tanaka, Yasuyuki Tanaka, Makoto Tashiro, Yuzuru Tawara, Yukikatsu Terada, Yuichi Terashima, Francesco Tombesi, Hiroshi Tomida, Yohko Tsuboi, Masahiro Tsujimoto, Hiroshi Tsunemi, Takeshi Go Tsuru, Hiroyuki Uchida, Hideki Uchiyama, Yasunobu Uchiyama, Shutaro Ueda, Yoshihiro Ueda, Shiro Ueno, Shin’ichiro Uno, C. Megan Urry, Eugenio Ursino, Cor de Vries, Atsushi Wada, Shin Watanabe, Tomomi Watanabe, Norbert Werner, Daniel R. Wik, Dan R. Wilkins, Brian J. Williams, Shinya Yamada, Takahiro Yamada, Hiroya Yamaguchi, Kazutaka Yamaoka, Noriko Y. Yamasaki, Makoto Yamauchi, Shigeo Yamauchi, Tahir Yaqoob, Yoichi Yatsu, Daisuke Yonetoku, Atsumasa Yoshida, Takayuki Yuasa, Irina Zhuravleva, Abderahmen Zoghbi

JATIS, Vol. 4, Issue 02, 021402, (March 2018) https://doi.org/10.1117/12.10.1117/1.JATIS.4.2.021402

KEYWORDS: Sensors, X-ray astronomy, Satellites, Physics, X-rays, Space operations, Aerospace engineering, Astronomy, Space telescopes, X-ray telescopes

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SPIE Journal Paper | 14 February 2018 Open Access

Open Access

Soft X-ray Imager aboard Hitomi (ASTRO-H)

Takaaki Tanaka, Hiroyuki Uchida, Hiroshi Nakajima, Hiroshi Tsunemi, Kiyoshi Hayashida, Takeshi Go Tsuru, Tadayasu Dotani, Ryo Nagino, Shota Inoue, Shuhei Katada, Ryosaku Washino, Masanobu Ozaki, Hiroshi Tomida, Chikara Natsukari, Shutaro Ueda, Masachika Iwai, Koji Mori, Makoto Yamauchi, Isamu Hatsukade, Yusuke Nishioka, Eri Isoda, Masayoshi Nobukawa, Junko Hiraga, Takayoshi Kohmura, Hiroshi Murakami, Kumiko Nobukawa, Aya Bamba, John Doty

JATIS, Vol. 4, Issue 01, 011211, (February 2018) https://doi.org/10.1117/12.10.1117/1.JATIS.4.1.011211

KEYWORDS: X-rays, X-ray imaging, Image segmentation, Space operations, Charge-coupled devices, Aluminum, Cameras, CCD cameras, Data processing, X-ray telescopes

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Proceedings Article | 20 July 2016 Paper

Paper

The ASTRO-H (Hitomi) x-ray astronomy satellite

Tadayuki Takahashi, Motohide Kokubun, Kazuhisa Mitsuda, Richard Kelley, Takaya Ohashi, Felix Aharonian, Hiroki Akamatsu, Fumie Akimoto, Steve Allen, Naohisa Anabuki, Lorella Angelini, Keith Arnaud, Makoto Asai, Marc Audard, Hisamitsu Awaki, Magnus Axelsson, Philipp Azzarello, Chris Baluta, Aya Bamba, Nobutaka Bando, Marshall Bautz, Thomas Bialas, Roger Blandford, Kevin Boyce, Laura Brenneman, Greg Brown, Esra Bulbul, Edward Cackett, Edgar Canavan, Maria Chernyakova, Meng Chiao, Paolo Coppi, Elisa Costantini, Jelle de Plaa, Jan-Willem den Herder, Michael DiPirro, Chris Done, Tadayasu Dotani, John Doty, Ken Ebisawa, Megan Eckart, Teruaki Enoto, Yuichiro Ezoe, Andrew Fabian, Carlo Ferrigno, Adam Foster, Ryuichi Fujimoto, Yasushi Fukazawa, Akihiro Furuzawa, Massimiliano Galeazzi, Luigi Gallo, Poshak Gandhi, Kirk Gilmore, Margherita Giustini, Andrea Goldwurm, Liyi Gu, Matteo Guainazzi, Daniel Haas, Yoshito Haba, Kouichi Hagino, Kenji Hamaguchi, Atsushi Harayama, Ilana Harrus, Isamu Hatsukade, Takayuki Hayashi, Katsuhiro Hayashi, Kiyoshi Hayashida, Junko Hiraga, Kazuyuki Hirose, Ann Hornschemeier, Akio Hoshino, John Hughes, Yuto Ichinohe, Ryo Iizuka, Yoshiyuki Inoue, Hajime Inoue, Kazunori Ishibashi, Manabu Ishida, Kumi Ishikawa, Kosei Ishimura, Yoshitaka Ishisaki, Masayuki Itoh, Naoko Iwata, Naoko Iyomoto, Chris Jewell, Jelle Kaastra, Timothy Kallman, Tuneyoshi Kamae, Erin Kara, Jun Kataoka, Satoru Katsuda, Junichiro Katsuta, Madoka Kawaharada, Nobuyuki Kawai, Taro Kawano, Shigeo Kawasaki, Dmitry Khangulyan, Caroline Kilbourne, Mark Kimball, Ashley King, Takao Kitaguchi, Shunji Kitamoto, Tetsu Kitayama, Takayoshi Kohmura, Tatsuro Kosaka, Alex Koujelev, Katsuji Koyama, Shu Koyama, Peter Kretschmar, Hans Krimm, Aya Kubota, Hideyo Kunieda, Philippe Laurent, François Lebrun, Shiu-Huang Lee, Maurice Leutenegger, Olivier Limousin, Michael Loewenstein, Knox Long, David Lumb, Grzegorz Madejski, Yoshitomo Maeda, Daniel Maier, Kazuo Makishima, Maxim Markevitch, Candace Masters, Hironori Matsumoto, Kyoko Matsushita, Dan McCammon, Daniel McGuinness, Brian McNamara, Missagh Mehdipour, Joseph Miko, Jon Miller, Eric Miller, Shin Mineshige, Kenji Minesugi, Ikuyuki Mitsuishi, Takuya Miyazawa, Tsunefumi Mizuno, Koji Mori, Hideyuki Mori, Franco Moroso, Harvey Moseley, Theodore Muench, Koji Mukai, Hiroshi Murakami, Toshio Murakami, Richard Mushotzky, Housei Nagano, Ryo Nagino, Takao Nakagawa, Hiroshi Nakajima, Takeshi Nakamori, Toshio Nakano, Shinya Nakashima, Kazuhiro Nakazawa, Yoshiharu Namba, Chikara Natsukari, Yusuke Nishioka, Masayoshi Nobukawa, Kumiko Nobukawa, Hirofumi Noda, Masaharu Nomachi, Steve O'Dell, Hirokazu Odaka, Hiroyuki Ogawa, Mina Ogawa, Keiji Ogi, Masanori Ohno, Masayuki Ohta, Takashi Okajima, Atsushi Okamoto, Tsuyoshi Okazaki, Naomi Ota, Masanobu Ozaki, Frederik Paerels, Stéphane Paltani, Arvind Parmar, Robert Petre, Ciro Pinto, Martin Pohl, James Pontius, F. Scott Porter, Katja Pottschmidt, Brian Ramsey, Christopher Reynolds, Helen Russell, Samar Safi-Harb, Shinya Saito, Shin-ichiro Sakai, Kazuhiro Sakai, Hiroaki Sameshima, Toru Sasaki, Goro Sato, Yoichi Sato, Kosuke Sato, Rie Sato, Makoto Sawada, Norbert Schartel, Peter Serlemitsos, Hiromi Seta, Yasuko Shibano, Maki Shida, Megumi Shidatsu, Takanobu Shimada, Keisuke Shinozaki, Peter Shirron, Aurora Simionescu, Cynthia Simmons, Randall Smith, Gary Sneiderman, Yang Soong, Łukasz Stawarz, Yasuharu Sugawara, Hiroyuki Sugita, Satoshi Sugita, Andrew Szymkowiak, Hiroyasu Tajima, Hiromitsu Takahashi, Shin'ichiro Takeda, Yoh Takei, Toru Tamagawa, Takayuki Tamura, Keisuke Tamura, Takaaki Tanaka, Yasuo Tanaka, Yasuyuki Tanaka, Makoto Tashiro, Yuzuru Tawara, Yukikatsu Terada, Yuichi Terashima, Francesco Tombesi, Hiroshi Tomida, Yohko Tsuboi, Masahiro Tsujimoto, Hiroshi Tsunemi, Takeshi Tsuru, Hiroyuki Uchida, Yasunobu Uchiyama, Hideki Uchiyama, Yoshihiro Ueda, Shutaro Ueda, Shiro Ueno, Shin'ichiro Uno, Meg Urry, Eugenio Ursino, Cor de Vries, Atsushi Wada, Shin Watanabe, Tomomi Watanabe, Norbert Werner, Daniel Wik, Dan Wilkins, Brian Williams, Takahiro Yamada, Shinya Yamada, Hiroya Yamaguchi, Kazutaka Yamaoka, Noriko Yamasaki, Makoto Yamauchi, Shigeo Yamauchi, Tahir Yaqoob, Yoichi Yatsu, Daisuke Yonetoku, Atsumasa Yoshida, Takayuki Yuasa, Irina Zhuravleva, Abderahmen Zoghbi

Proceedings Volume 9905, 99050U (2016) https://doi.org/10.1117/12.2232379

KEYWORDS: X-rays, X-ray astronomy, Sensors, Satellites, X-ray telescopes, Space operations, Physics, Space telescopes, Aerospace engineering, Calibration

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Proceedings Article | 18 July 2016 Paper

Paper

Soft x-ray imager (SXI) onboard ASTRO-H

Hiroshi Tsunemi, Kiyoshi Hayashida, Takeshi Go Tsuru, Tadayasu Dotani, Hiroshi Nakajima, Naohisa Anabuki, Ryo Nagino, Takaaki Tanaka, Hiroyuki Uchida, Masanobu Ozaki, Chikara Natsukari, Hiroshi Tomida, Shutaro Ueda, Masachika Iwai, Masayoshi Nobukawa, Junko Hiraga, Takayoshi Kohmura, Hiroshi Murakami, Koji Mori, Makoto Yamauchi, Isamu Hatsukade, Yusuke Nishioka, Aya Bamba, Kumiko Nobukawa, John Doty

Proceedings Volume 9905, 990510 (2016) https://doi.org/10.1117/12.2230672

KEYWORDS: Bismuth, Charge-coupled devices, X-ray imaging, X-rays, Satellites, Charge-coupled devices, X-ray imaging, Calibration, Aluminum, Visible radiation, X-ray telescopes, Contamination

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Proceedings Article | 18 September 2015 Paper

Paper

The Soft X-ray Imager (SXI) for the ASTRO-H Mission

Takaaki Tanaka, Hiroshi Tsunemi, Kiyoshi Hayashida, Takeshi Tsuru, Tadayasu Dotani, Hiroshi Nakajima, Naohisa Anabuki, Ryo Nagino, Hiroyuki Uchida, Masayoshi Nobukawa, Masanobu Ozaki, Chikara Natsukari, Hiroshi Tomida, Shutaro Ueda, Masashi Kimura, Junko Hiraga, Takayoshi Kohmura, Hiroshi Murakami, Koji Mori, Makoto Yamauchi, Isamu Hatsukade, Yusuke Nishioka, Aya Bamba, John Doty

Proceedings Volume 9601, 96010E (2015) https://doi.org/10.1117/12.2190808

KEYWORDS: Charge-coupled devices, X-rays, Satellites, Calibration, X-ray imaging, Sensors, Data modeling, CCD cameras, X-ray fluorescence spectroscopy, X-ray astronomy

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Proceedings Article | 31 July 2014 Paper

Paper

Soft x-ray transmission of contamination blocking filter for SXI onboard ASTRO-H

Takayoshi Kohmura, Kenta Kaneko, Hiroshi Tsunemi, Kiyoshi Hayashida, Ryo Nagino, Shota Inoue, Daiki Uchida, Shuhei Katada, Tadayasu Dotani, Masanobu Ozaki, Hiroshi Tomida, Masashi Kimura, Takeshi Go Tsuru, Shoma Ikeda, Kazunari Yabe, Kento Miyakawa, Masato Andoh, Shintaro Kuwano, Yuta Sato, Kohki Tamasawa, Shoma Tanno, Yuma Yoshino

Proceedings Volume 9144, 91445D (2014) https://doi.org/10.1117/12.2056473

KEYWORDS: X-rays, Aluminum, Contamination, Charge-coupled devices, Absorption, Ultraviolet radiation, Data modeling, X-ray optics, Satellites, X-ray detectors

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Proceedings Article | 29 July 2014 Paper

Paper

Soft X-ray Imager (SXI) onboard ASTRO-H

Kiyoshi Hayashida, Hiroshi Tsunemi, Takeshi Tsuru, Tadayasu Dotani, Hiroshi Nakajima, Naohisa Anabuki, Ryo Nagino, Shutaro Ueda, Takaaki Tanaka, Hiroyuki Uchida, Masayoshi Nobukawa, Masayuki Ozaki, Chikara Natsukari, Junko Hiraga, Hiroshi Tomida, Masashi Kimura, Tadayoshi Kohmura, Hiroshi Murakami, Koji Mori, Makoto Yamauchi, Isamu Hatsukade, Yusuke Nishioka, Aya Bamba, Shuhei Katada, Kumiko Nobukawa, Masachika Iwai, Keisuke Kondo, Tukasa Takeyoshi, John Doty

Proceedings Volume 9144, 914429 (2014) https://doi.org/10.1117/12.2054575

KEYWORDS: Charge-coupled devices, X-rays, Fermium, Frequency modulation, Quantum efficiency, Satellites, Cameras, X-ray imaging, CCD cameras, Calibration

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Proceedings Article | 28 July 2014 Paper

Paper

Wide-field MAXI: soft x-ray transient monitor on the ISS

Nobuyuki Kawai, Hiroshi Tomida, Yoichi Yatsu, Tatehiro Mihara, Shiro Ueno, Masashi Kimura, Makoto Arimoto, Motoko Serino, Takanori Sakamoto, Hiroshi Tsunemi, Takayoshi Kohmura, Hitoshi Negoro, Yoshihiro Ueda, Mikio Morii, Yoko Tsuboi, Ken Ebisawa, Atsumasa Yoshida

Proceedings Volume 9144, 91442P (2014) https://doi.org/10.1117/12.2057188

KEYWORDS: X-rays, Stanford Linear Collider, Charge-coupled devices, Cameras, Gamma radiation, Sensors, Solids, X-ray detectors, Avalanche photodetectors, Physics

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Proceedings Article | 28 July 2014 Paper

Paper

Development of the hard x-ray monitor onboard WF-MAXI

Makoto Arimoto, Yoichi Yatsu, Nobuyuki Kawai, Hirokazu Ikeda, Atsushi Harayama, Shin'ichiro Takeda, Tadayuki Takahashi, Hiroshi Tomida, Shiro Ueno, Masashi Kimura, Tatehiro Mihara, Motoko Serino, Hiroshi Tsunemi, Atsumasa Yoshida, Takanori Sakamoto, Tadayoshi Kohmura, Hitoshi Negoro, Yoshihiro Ueda

Proceedings Volume 9144, 91445Z (2014) https://doi.org/10.1117/12.2054942

KEYWORDS: Avalanche photodetectors, X-rays, Field effect transistors, Resistance, Crystals, Sensors, Hard x-rays, Scintillators, Analog electronics, Stanford Linear Collider

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Proceedings Article | 28 July 2014 Paper

Paper

Formation Flight Astronomical Survey Telescope (FFAST) mission in hard x-ray

Hiroshi Tsunemi, Hiroshi Nakajima, Naohisa Anabuki, Ryo Nagino, Hideyo Kunieda, Hironori Matsumoto, Masayuki Itoh, Isao Kawano, Toshinori Ikenaga, Shinji Mitani, Toru Yamamoto, Masanobu Ozaki, Koji Mori, Yoshihiro Ueda, Takayoshi Kohmura

Proceedings Volume 9144, 91442R (2014) https://doi.org/10.1117/12.2054733

KEYWORDS: Satellites, Charge-coupled devices, Mirrors, X-rays, Hard x-rays, X-ray telescopes, Sensors, Astronomy, Space telescopes, Telescopes

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Proceedings Article | 24 July 2014 Paper

Paper

The ASTRO-H X-ray astronomy satellite

Tadayuki Takahashi, Kazuhisa Mitsuda, Richard Kelley, Felix Aharonian, Hiroki Akamatsu, Fumie Akimoto, Steve Allen, Naohisa Anabuki, Lorella Angelini, Keith Arnaud, Makoto Asai, Marc Audard, Hisamitsu Awaki, Philipp Azzarello, Chris Baluta, Aya Bamba, Nobutaka Bando, Marshall Bautz, Thomas Bialas, Roger Blandford, Kevin Boyce, Laura Brenneman, Gregory Brown, Ed Cackett, Edgar Canavan, Maria Chernyakova, Meng Chiao, Paolo Coppi, Elisa Costantini, Jelle de Plaa, Jan-Willem den Herder, Michael DiPirro, Chris Done, Tadayasu Dotani, John Doty, Ken Ebisawa, Teruaki Enoto, Yuichiro Ezoe, Andrew Fabian, Carlo Ferrigno, Adam Foster, Ryuichi Fujimoto, Yasushi Fukazawa, Stefan Funk, Akihiro Furuzawa, Massimiliano Galeazzi, Luigi Gallo, Poshak Gandhi, Kirk Gilmore, Matteo Guainazzi, Daniel Haas, Yoshito Haba, Kenji Hamaguchi, Atsushi Harayama, Isamu Hatsukade, Katsuhiro Hayashi, Takayuki Hayashi, Kiyoshi Hayashida, Junko Hiraga, Kazuyuki Hirose, Ann Hornschemeier, Akio Hoshino, John Hughes, Una Hwang, Ryo Iizuka, Yoshiyuki Inoue, Kazunori Ishibashi, Manabu Ishida, Kumi Ishikawa, Kosei Ishimura, Yoshitaka Ishisaki, Masayuki Itoh, Naoko Iwata, Naoko Iyomoto, Chris Jewell, Jelle Kaastra, Timothy Kallman, Tuneyoshi Kamae, Jun Kataoka, Satoru Katsuda, Junichiro Katsuta, Madoka Kawaharada, Nobuyuki Kawai, Taro Kawano, Shigeo Kawasaki, Dmitry Khangaluyan, Caroline Kilbourne, Mark Kimball, Masashi Kimura, Shunji Kitamoto, Tetsu Kitayama, Takayoshi Kohmura, Motohide Kokubun, Saori Konami, Tatsuro Kosaka, Alexander Koujelev, Katsuji Koyama, Hans Krimm, Aya Kubota, Hideyo Kunieda, Stephanie LaMassa, Philippe Laurent, François Lebrun, Maurice Leutenegger, Olivier Limousin, Michael Loewenstein, Knox Long, David Lumb, Grzegorz Madejski, Yoshitomo Maeda, Kazuo Makishima, Maxim Markevitch, Candace Masters, Hironori Matsumoto, Kyoko Matsushita, Dan McCammon, Daniel McGuinness, Brian McNamara, Joseph Miko, Jon Miller, Eric Miller, Shin Mineshige, Kenji Minesugi, Ikuyuki Mitsuishi, Takuya Miyazawa, Tsunefumi Mizuno, Koji Mori, Hideyuki Mori, Franco Moroso, Theodore Muench, Koji Mukai, Hiroshi Murakami, Toshio Murakami, Richard Mushotzky, Housei Nagano, Ryo Nagino, Takao Nakagawa, Hiroshi Nakajima, Takeshi Nakamori, Shinya Nakashima, Kazuhiro Nakazawa, Yoshiharu Namba, Chikara Natsukari, Yusuke Nishioka, Masayoshi Nobukawa, Hirofumi Noda, Masaharu Nomachi, Steve O'Dell, Hirokazu Odaka, Hiroyuki Ogawa, Mina Ogawa, Keiji Ogi, Takaya Ohashi, Masanori Ohno, Masayuki Ohta, Takashi Okajima, Tsuyoshi Okazaki, Naomi Ota, Masanobu Ozaki, Frits Paerels, Stéphane Paltani, Arvind Parmar, Robert Petre, Ciro Pinto, Martin Pohl, James Pontius, F. Porter, Katja Pottschmidt, Brian Ramsey, Rubens Reis, Christopher Reynolds, Claudio Ricci, Helena Russell, Samar Safi-Harb, Shinya Saito, Shin-ichiro Sakai, Hiroaki Sameshima, Kosuke Sato, Rie Sato, Goro Sato, Makoto Sawada, Peter Serlemitsos, Hiromi Seta, Yasuko Shibano, Maki Shida, Takanobu Shimada, Peter Shirron, Aurora Simionescu, Cynthia Simmons, Randall Smith, Gary Sneiderman, Yang Soong, Lukasz Stawarz, Yasuharu Sugawara, Satoshi Sugita, Andrew Szymkowiak, Hiroyasu Tajima, Hiroaki Takahashi, Hiromitsu Takahashi, Shin-ichiro Takeda, Yoh Takei, Toru Tamagawa, Keisuke Tamura, Takayuki Tamura, Takaaki Tanaka, Yasuyuki Tanaka, Yasuo Tanaka, Makoto Tashiro, Yuzuru Tawara, Yukikatsu Terada, Yuichi Terashima, Francesco Tombesi, Hiroshi Tomida, Yoko Tsuboi, Masahiro Tsujimoto, Hiroshi Tsunemi, Takeshi Tsuru, Hiroyuki Uchida, Hideki Uchiyama, Yasunobu Uchiyama, Yoshihiro Ueda, Shutaro Ueda, Shiro Ueno, Shinichiro Uno, Meg Urry, Eugenio Ursino, Cor de Vries, Atsushi Wada, Shin Watanabe, Tomomi Watanabe, Norbert Werner, Nicholas White, Dan Wilkins, Shinya Yamada, Takahiro Yamada, Hiroya Yamaguchi, Kazutaka Yamaoka, Noriko Yamasaki, Makoto Yamauchi, Shigeo Yamauchi, Tahir Yaqoob, Yoichi Yatsu, Daisuke Yonetoku, Atsumasa Yoshida, Takayuki Yuasa, Irina Zhuravleva, Abderahmen Zoghbi, John ZuHone

Proceedings Volume 9144, 914425 (2014) https://doi.org/10.1117/12.2055681

KEYWORDS: Sensors, X-rays, Hard x-rays, X-ray telescopes, X-ray astronomy, Physics, Space telescopes, Satellites, Astronomy, Spectroscopy

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Proceedings Article | 24 July 2014 Paper

Paper

Development of soft x-ray large solid angle camera onboard WF-MAXI

Masashi Kimura, Hiroshi Tomida, Shiro Ueno, Nobuyuki Kawai, Yoichi Yatsu, Makoto Arimoto, Tatehiro Mihara, Motoko Serino, Hiroshi Tsunemi, Atsumasa Yoshida, Takanori Sakamoto, Takayoshi Kohmura, Hitoshi Negoro

Proceedings Volume 9144, 914460 (2014) https://doi.org/10.1117/12.2055610

KEYWORDS: Charge-coupled devices, Stanford Linear Collider, Cameras, X-rays, CCD cameras, Solids, Solid state cameras, Photomasks, Aluminum, Electronics

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Proceedings Article | 22 June 2014 Paper

Paper

Development and performance of Kyoto's x-ray astronomical SOI pixel (SOIPIX) sensor

Takeshi Tsuru, Hideaki Matsumura, Ayaki Takeda, Takaaki Tanaka, Shinya Nakashima, Yasuo Arai, Koji Mori, Ryota Takenaka, Yusuke Nishioka, Takayoshi Kohmura, Takaki Hatsui, Takashi Kameshima, Kyosuke Ozaki, Yoshiki Kohmura, Tatsuya Wagai, Dai Takei, Shoji Kawahito, Keiichiro Kagawa, Keita Yasutomi, Sumeet Shrestha, Hiroki Kamehama

Proceedings Volume 9144, 914412 (2014) https://doi.org/10.1117/12.2057158

KEYWORDS: X-rays, X-ray astronomy, Sensors, Charge-coupled devices, X-ray detectors, CMOS sensors, X-ray imaging, Analog electronics, X-ray technology, Satellites

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Proceedings Article | 26 September 2013 Paper

Paper

Soft x-ray imager onboard ASTRO-H

Hiroshi Tsunemi, Kiyoshi Hayashida, Hiroshi Nakajima, Takeshi Go Tsuru, Takaaki Tanaka, Tadayasu Dotani, Masayuki Ozaki, Chikara Natsukari, Hiroshi Tomida, Junko Hiraga, Takayoshi Kohmura, Hiroshi Murakami, Koji Mori, Makoto Yamauchi, Isamu Hatsukade, Aya Bamba

Proceedings Volume 8859, 88590C (2013) https://doi.org/10.1117/12.2023267

KEYWORDS: Charge-coupled devices, X-rays, Satellites, X-ray imaging, Fermium, Frequency modulation, Video, X-ray telescopes, X-ray detectors, CCD cameras

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Proceedings Article | 17 September 2012 Paper

Paper

The ASTRO-H X-ray Observatory

Tadayuki Takahashi, Kazuhisa Mitsuda, Richard Kelley, Henri Aarts, Felix Aharonian, Hiroki Akamatsu, Fumie Akimoto, Steve Allen, Naohisa Anabuki, Lorella Angelini, Keith Arnaud, Makoto Asai, Marc Audard, Hisamitsu Awaki, Philipp Azzarello, Chris Baluta, Aya Bamba, Nobutaka Bando, Mark Bautz, Roger Blandford, Kevin Boyce, Greg Brown, Ed Cackett, Mara Chernyakova, Paolo Coppi, Elisa Costantini, Jelle de Plaa, Jan-Willem den Herder, Michael DiPirro, Chris Done, Tadayasu Dotani, John Doty, Ken Ebisawa, Megan Eckart, Teruaki Enoto, Yuichiro Ezoe, Andrew Fabian, Carlo Ferrigno, Adam Foster, Ryuichi Fujimoto, Yasushi Fukazawa, Stefan Funk, Akihiro Furuzawa, Massimiliano Galeazzi, Luigi Gallo, Poshak Gandhi, Keith Gendreau, Kirk Gilmore, Daniel Haas, Yoshito Haba, Kenji Hamaguchi, Isamu Hatsukade, Takayuki Hayashi, Kiyoshi Hayashida, Junko Hiraga, Kazuyuki Hirose, Ann Hornschemeier, Akio Hoshino, John Hughes, Una Hwang, Ryo Iizuka, Yoshiyuki Inoue, Kazunori Ishibashi, Manabu Ishida, Kosei Ishimura, Yoshitaka Ishisaki, Masayuki Ito, Naoko Iwata, Naoko Iyomoto, Jelle Kaastra, Timothy Kallman, Tuneyoshi Kamae, Jun Kataoka, Satoru Katsuda, Hajime Kawahara, Madoka Kawaharada, Nobuyuki Kawai, Shigeo Kawasaki, Dmitry Khangaluyan, Caroline Kilbourne, Masashi Kimura, Kenzo Kinugasa, Shunji Kitamoto, Tetsu Kitayama, Takayoshi Kohmura, Motohide Kokubun, Tatsuro Kosaka, Alex Koujelev, Katsuji Koyama, Hans Krimm, Aya Kubota, Hideyo Kunieda, Stephanie LaMassa, Philippe Laurent, Francois Lebrun, Maurice Leutenegger, Olivier Limousin, Michael Loewenstein, Knox Long, David Lumb, Grzegorz Madejski, Yoshitomo Maeda, Kazuo Makishima, Genevieve Marchand, Maxim Markevitch, Hironori Matsumoto, Kyoko Matsushita, Dan McCammon, Brian McNamara, Jon Miller, Eric Miller, Shin Mineshige, Kenji Minesugi, Ikuyuki Mitsuishi, Takuya Miyazawa, Tsunefumi Mizuno, Hideyuki Mori, Koji Mori, Koji Mukai, Toshio Murakami, Hiroshi Murakami, Richard Mushotzky, Hosei Nagano, Ryo Nagino, Takao Nakagawa, Hiroshi Nakajima, Takeshi Nakamori, Kazuhiro Nakazawa, Yoshiharu Namba, Chikara Natsukari, Yusuke Nishioka, Masayoshi Nobukawa, Masaharu Nomachi, Steve O'Dell, Hirokazu Odaka, Hiroyuki Ogawa, Mina Ogawa, Keiji Ogi, Takaya Ohashi, Masanori Ohno, Masayuki Ohta, Takashi Okajima, Atsushi Okamoto, Tsuyoshi Okazaki, Naomi Ota, Masanobu Ozaki, Fritzs Paerels, Stéphane Paltani, Arvind Parmar, Robert Petre, Martin Pohl, F. Scott Porter, Brian Ramsey, Rubens Reis, Christopher Reynolds, Helen Russell, Samar Safi-Harb, Shin-ichiro Sakai, Hiroaki Sameshima, Jeremy Sanders, Goro Sato, Rie Sato, Yohichi Sato, Kosuke Sato, Makoto Sawada, Peter Serlemitsos, Hiromi Seta, Yasuko Shibano, Maki Shida, Takanobu Shimada, Keisuke Shinozaki, Peter Shirron, Aurora Simionescu, Cynthia Simmons, Randall Smith, Gary Sneiderman, Yang Soong, Lukasz Stawarz, Yasuharu Sugawara, Hiroyuki Sugita, Satoshi Sugita, Andrew Szymkowiak, Hiroyasu Tajima, Hiromitsu Takahashi, Shin-ichiro Takeda, Yoh Takei, Toru Tamagawa, Takayuki Tamura, Keisuke Tamura, Takaaki Tanaka, Yasuo Tanaka, Makoto Tashiro, Yuzuru Tawara, Yukikatsu Terada, Yuichi Terashima, Francesco Tombesi, Hiroshi Tomida, Yohko Tsuboi, Masahiro Tsujimoto, Hiroshi Tsunemi, Takeshi Tsuru, Hiroyuki Uchida, Yasunobu Uchiyama, Hideki Uchiyama, Yoshihiro Ueda, Shiro Ueno, Shinichiro Uno, Meg Urry, Eugenio Ursino, Cor de Vries, Atsushi Wada, Shin Watanabe, Norbert Werner, Nicholas White, Takahiro Yamada, Shinya Yamada, Hiroya Yamaguchi, Noriko Yamasaki, Shigeo Yamauchi, Makoto Yamauchi, Yoichi Yatsu, Daisuke Yonetoku, Atsumasa Yoshida, Takayuki Yuasa

Proceedings Volume 8443, 84431Z (2012) https://doi.org/10.1117/12.926190

KEYWORDS: Sensors, X-rays, Hard x-rays, X-ray telescopes, Physics, X-ray astronomy, Iron, Spectroscopy, X-ray imaging, Galaxy groups and clusters

Read Abstract +

Proceedings Article | 17 September 2012 Paper

Paper

Soft x-ray imager (SXI) onboard ASTRO-H

Kiyoshi Hayashida, Hiroshi Tsunemi, Takeshi Go Tsuru, Tadayasu Dotani, Hiroshi Nakajima, Naohisa Anabuki, Masanobu Ozaki, Chikara Natsukari, Junko Hiraga, Hiroshi Tomida, Takayoshi Kohmura, Hiroshi Murakami, Koji Mori, Makoto Yamauchi, Isamu Hatsukade, Yusuke Nishioka, Aya Bamba, Hiroyuki Uchida, Masayoshi Nobukawa, Takaaki Tanaka, Ryo Nagino, Shutaro Ueda, Takahisa Fujinaga, Keiko Matsuta, Takao Ohnishi, John Doty

Proceedings Volume 8443, 844323 (2012) https://doi.org/10.1117/12.925095

KEYWORDS: Charge-coupled devices, X-rays, Cameras, Quantum efficiency, CCD cameras, Video, X-ray imaging, Analog electronics, Fermium, Frequency modulation

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Proceedings Article | 17 September 2012 Paper

Paper

The x-ray advanced concepts testbed (XACT) sounding rocket payload

Keith Gendreau, Zaven Arzoumanian, Fumi Asami, Robert Baker, Erin Balsamo, Kevin Black, Carlos Duran-Aviles, Teruaki Enoto, Kyle Gregory, Devin Hahne, Asami Hayato, Joe Hill, Fred Huegel, Takanori Iwahashi, Wataru Iwakiri, Keith Jahoda, Lalit Jalota, Philip Kaaret, Kenta Kaneko, Steven Kenyon, Takao Kitaguchi, Richard Koenecke, Takayoshi Kohmura, Takashi Okajima, Larry Olsen, F. Scott Porter, Kurt Rush, Peter Serlemitsos, Yang Soong, Yoko Takeuchi, Toru Tamagawa, Shin'ya Yamada, Akifumi Yoshikawa

Proceedings Volume 8443, 84434V (2012) https://doi.org/10.1117/12.926418

KEYWORDS: X-rays, Polarization, Solar concentrators, Polarimetry, X-ray technology, Modulation, Calibration, Photons, Rockets, X-ray optics

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Proceedings Article | 14 September 2011 Paper

Paper

Development of the soft x-ray imager (SXI) for ASTRO-H

Kiyoshi Hayashida, Hiroshi Tsunemi, Takeshi Go Tsuru, Tadayasu Dotani, Hiroshi Nakajima, Naohisa Anabuki, Masanobu Ozaki, Chikara Natsukari, Junko Hiraga, Hiroshi Tomida, Takayoshi Kohmura, Hiroshi Murakami, Koji Mori, Makoto Yamauchi, Isamu Hatsukade, Aya Bamba, Hiroyuki Uchida, Masayoshi Nobukawa, Shutaro Ueda, Takahisa Fujinaga, Keiko Matsuta, Takao Ohnishi, John Doty

Proceedings Volume 8145, 814505 (2011) https://doi.org/10.1117/12.893400

KEYWORDS: X-ray imaging, CCD cameras, X-ray astronomy, X-rays, Analog electronics, Head, Roentgenium, Cameras, Charge-coupled devices, Ultraviolet radiation

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Proceedings Article | 14 September 2011 Paper

Paper

Development of the x-ray CCD for SXI on board ASTRO-H

Shutaro Ueda, Kiyoshi Hayashida, Hiroshi Nakajima, Naohisa Anabuki, Hiroyuki Uchida, Hiroshi Tsunemi, Mari Fujikawa, Hideki Mori, Takayoshi Kohmura, Tatsuo Watanabe, Kohei Kawai, Shoma Ikeda, Kenta Kaneko, Kazuya Sakata, Shotaro Todoroki, Hideki Mizuno, Nobuyoshi Yagihashi, Tadayasu Dotani, Masanobu Ozaki, Takeshi Go Tsuru, Masaharu Muramatsu, Hisanori Suzuki, Shin'ichiro Takagi

Proceedings Volume 8145, 814504 (2011) https://doi.org/10.1117/12.893348

KEYWORDS: Charge-coupled devices, X-rays, Prototyping, X-ray astronomy, Signal attenuation, X-ray imaging, Ultraviolet radiation, Gamma radiation, Aerospace engineering, Gamma-ray astronomy

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Proceedings Article | 31 July 2010 Paper

Paper

The ASTRO-H Mission

Tadayuki Takahashi, Kazuhisa Mitsuda, Richard Kelley, Felix Aharonian, Fumie Akimoto, Steve Allen, Naohisa Anabuki, Lorella Angelini, Keith Arnaud, Hisamitsu Awaki, Aya Bamba, Nobutaka Bando, Mark Bautz, Roger Blandford, Kevin Boyce, Greg Brown, Mara Chernyakova, Paolo Coppi, Elisa Costantini, Jean Cottam, John Crow, Jelle de Plaa, Cor de Vries, Jan-Willem den Herder, Michael DiPirro, Chris Done, Tadayasu Dotani, Ken Ebisawa, Teruaki Enoto, Yuichiro Ezoe, Andrew Fabian, Ryuichi Fujimoto, Yasushi Fukazawa, Stefan Funk, Akihiro Furuzawa, Massimiliano Galeazzi, Poshak Gandhi, Keith Gendreau, Kirk Gilmore, Yoshito Haba, Kenji Hamaguchi, Isamu Hatsukade, Kiyoshi Hayashida, Junko Hiraga, Kazuyuki Hirose, Ann Hornschemeier, John Hughes, Una Hwang, Ryo Iizuka, Kazunori Ishibashi, Manabu Ishida, Kosei Ishimura, Yoshitaka Ishisaki, Naoki Isobe, Masayuki Ito, Naoko Iwata, Jelle Kaastra, Tim Kallman, Tuneyoshi Kamae, Hideaki Katagiri, Jun Kataoka, Satoru Katsuda, Madoka Kawaharada, Nobuyuki Kawai, Shigeo Kawasaki, Dmitry Khangaluyan, Caroline Kilbourne, Kenzo Kinugasa, Shunji Kitamoto, Tetsu Kitayama, Takayoshi Kohmura, Motohide Kokubun, Tatsuro Kosaka, Taro Kotani, Katsuji Koyama, Aya Kubota, Hideyo Kunieda, Philippe Laurent, Francois Lebrun, Olivier Limousin, Michael Loewenstein, Knox Long, Grzegorz Madejski, Yoshitomo Maeda, Kazuo Makishima, Maxim Markevitch, Hironori Matsumoto, Kyoko Matsushita, Dan McCammon, Jon Miller, Shin Mineshige, Kenji Minesugi, Takuya Miyazawa, Tsunefumi Mizuno, Koji Mori, Hideyuki Mori, Koji Mukai, Hiroshi Murakami, Toshio Murakami, Richard Mushotzky, Yujin Nakagawa, Takao Nakagawa, Hiroshi Nakajima, Takeshi Nakamori, Kazuhiro Nakazawa, Yoshiharu Namba, Masaharu Nomachi, Stephen O'Dell, Hiroyuki Ogawa, Mina Ogawa, Keiji Ogi, Takaya Ohashi, Masanori Ohno, Masayuki Ohta, Takashi Okajima, Naomi Ota, Masanobu Ozaki, Frederik Paerels, Stéphane Paltani, Arvind Parmar, Robert Petre, Martin Pohl, S. Porter, Brian Ramsey, Christopher Reynolds, Shin-ichiro Sakai, Rita Sambruna, Goro Sato, Yoichi Sato, Peter Serlemitsos, Maki Shida, Takanobu Shimada, Keisuke Shinozaki, Peter Shirron, Randall Smith, Gary Sneiderman, Yang Soong, Lukasz Stawarz, Hiroyuki Sugita, Andrew Szymkowiak, Hiroyasu Tajima, Hiromitsu Takahashi, Yoh Takei, Tohru Tamagawa, Takayuki Tamura, Keisuke Tamura, Takaaki Tanaka, Yasayuki Tanaka, Yasuo Tanaka, Makoto Tashiro, Yuzuru Tawara, Yukikatsu Terada, Yuichi Terashima, Francesco Tombesi, Hiroshi Tomida, Miyako Tozuka, Yohko Tsuboi, Masahiro Tsujimoto, Hiroshi Tsunemi, Takeshi Tsuru, Hiroyuki Uchida, Yasunobu Uchiyama, Hideki Uchiyama, Yoshihiro Ueda, Shinichiro Uno, Meg Urry, Shin Watanabe, Nicholas White, Takahiro Yamada, Hiroya Yamaguchi, Kazutaka Yamaoka, Noriko Yamasaki, Makoto Yamauchi, Shigeo Yamauchi, Yoichi Yatsu, Daisuke Yonetoku, Atsumasa Yoshida

Proceedings Volume 7732, 77320Z (2010) https://doi.org/10.1117/12.857875

KEYWORDS: Sensors, X-rays, Hard x-rays, Physics, X-ray telescopes, X-ray imaging, Spectroscopy, Spatial resolution, Imaging systems, Iron

Read Abstract +

Proceedings Article | 29 July 2010 Paper

Paper

Measuring the EUV and optical transmission of optical blocking layer for x-ray CCD camera

Takayoshi Kohmura, Kohei Kawai, Tatsuo Watanabe, Taiki Ogawa, Shoma Ikeda, Kaoru Ushiyama, Kenta Kaneko, Shunji Kitamoto, Hiroshi Murakami, Eri Takenaka, Kenta Nagasaki, Keiichi Higashi, Masaki Yoshida, Hiroshi Tsunemi, Kiyoshi Hayashida, Naohisa Anabuki, Hiroshi Nakajima, Rui Sakaguchi, Kazuo Shigeyama, Shutaro Ueda, Takeshi Go Tsuru, Tadayasu Dotani, Masanobu Ozaki, Aya Bamba, Junko Hiraga, Koji Mori

Proceedings Volume 7732, 77323D (2010) https://doi.org/10.1117/12.856767

KEYWORDS: Extreme ultraviolet, Aluminum, Charge-coupled devices, Transmittance, X-ray optics, X-rays, EUV optics, CCD cameras, Coating, Photodiodes

Read Abstract +

Proceedings Article | 29 July 2010 Paper

Paper

Soft x-ray imager (SXI) onboard ASTRO-H

Hiroshi Tsunemi, Kiyoshi Hayashida, Takeshi Go Tsuru, Tadayasu Dotani, Junko Hiraga, Naohisa Anabuki, Aya Bamba, Isamu Hatsukade, Takayoshi Kohmura, Koji Mori, Hiroshi Murakami, Hiroshi Nakajima, Masanobu Ozaki, Hiroyuki Uchida, Makoto Yamauchi

Proceedings Volume 7732, 773210 (2010) https://doi.org/10.1117/12.856087

KEYWORDS: Charge-coupled devices, X-rays, Satellites, CCD cameras, Analog electronics, Calibration, Sensors, Video processing, Electronics, Contamination

Read Abstract +

Proceedings Article | 15 July 2008 Paper

Paper

NeXT SXI data processing system

Masanobu Ozaki, Naohisa Anabuki, Daisuke Matsuura, Hiroshi Nakajima, Emi Miyata, Kiyoshi Hayashida, Hiroshi Tsunemi, Takeshi Tsuru, Hironori Matsumoto, Aya Bamba, Takahisa Fujinaga, Tadayasu Dotani, Takeshi Takashima, Tadayuki Takahashi, Hiroshi Tomida, Junko Hiraga, Hiroshi Murakami, Takayoshi Kohmura, Kazunori Masukawa, Masahiro Kato, Atsushi Nakajima, Yo Watanabe

Proceedings Volume 7011, 70112L (2008) https://doi.org/10.1117/12.788193

KEYWORDS: Charge-coupled devices, Cameras, Data processing, CCD cameras, X-ray imaging, Image filtering, Clocks, Field programmable gate arrays, X-ray detectors, X-rays

Read Abstract +

Proceedings Article | 26 October 2007 Paper

Paper

Ground bakeout experiment of the optical blocking filter (OBF) for the Suzaku XIS

Hideyuki Mori, Takeshi Go Tsuru, Hironori Matsumoto, Hideki Uchiyama, Midori Ozawa, Yohjiro Takikawa, Masayoshi Nobukawa, Katsuji Koyama, Ken'ichi Torii, Noriaki Tawa, Shunji Kitamoto, Keisuke Sudoh, Takayoshi Kohmura

Proceedings Volume 6686, 66860O (2007) https://doi.org/10.1117/12.732293

KEYWORDS: Adsorption, Quantum efficiency, Contamination, Crystals, Photography, Optical filters, Sensors, X-ray imaging, X-rays, Solids

Read Abstract +

Proceedings Article | 15 June 2006 Paper

Paper

X-ray polarimeter with a multilayer-coated CCD

Shunji Kitamoto, Takeshi Watanabe, Jun'ichi Kanai, Keisuke Sudoh, Jun'ichi Satoh, Yousuke Ohkubo, Akiko Sekiguchi, Masahiro Tsujimoto, Kazuharu Suga, Takayoshi Kohmura, Yoshitomo Maeda, Shunsaku Okada, Yumi Itoh, Ryoko Nakamura, Hideyo Kunieda

Proceedings Volume 6266, 62662V (2006) https://doi.org/10.1117/12.672637

KEYWORDS: Charge-coupled devices, X-rays, Polarization, Photons, Polarimetry, Reflectivity, X-ray imaging, Scattering, X-ray detectors, Sensors

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Proceedings Article | 13 June 2006 Paper

Paper

Soft x-ray imager (SXI) onboard the NeXT satellite

Takeshi Go Tsuru, Shin-Ichiro Takagi, Hironori Matsumoto, Tatsuya Inui, Midori Ozawa, Katsuji Koyama, Hiroshi Tsunemi, Kiyoshi Hayashida, Emi Miyata, Hideki Ozawa, Masakuni Touhiguchi, Daisuke Matsuura, Tadayasu Dotani, Masanobu Ozaki, Hiroshi Murakami, Takayoshi Kohmura, Shunji Kitamoto, Hisamitsu Awaki

Proceedings Volume 6266, 62662I (2006) https://doi.org/10.1117/12.670649

KEYWORDS: Charge-coupled devices, X-rays, Sensors, CCD cameras, X-ray imaging, X-ray detectors, CCD image sensors, X-ray telescopes, Satellites, Aluminum

Read Abstract +

Proceedings Article | 1 September 2005 Paper

Paper

Adaptive x-ray optics with a deformable mirror

Shunji Kitamoto, Norimasa Yamamoto, Takayoshi Kohmura, Kazuharu Suga, Hiroyuki Sekiguchi, Jun'ichi Sato, Keisuke Sudo, Takeshi Watanabe, Youhei Ohkubo, Akiko Sekiguchi, Masahiro Tsujimoto

Proceedings Volume 5900, 590019 (2005) https://doi.org/10.1117/12.620162

KEYWORDS: X-rays, X-ray optics, Adaptive optics, Mirrors, Reflectivity, X-ray telescopes, Telescopes, Deformable mirrors, X-ray sources, Charge-coupled devices

Read Abstract +

We are developing a soft x-ray telescope with an adaptive optics system for future astronomical observation with very fine angular resolution of an order of milli-arc-second. From a technical point of view, we are trying to develop a normal incident telescope with multi layers. Thus the wave length is limited to be around 13.5 nm with a band pass of roughly 1nm. Since the x-ray telescope must be installed on a satellite, a stable conditions of temperature, gravity etc, can not be expected. Therefore, we investigate to use an adaptive optics system using an optical light source attached in the telescope. In this paper, we report our present status of the development. The primary mirror is an off-axis paraboloid with 80 mm effective diameter and 2 m focal length. This mirror has been coated with Mo/Si multi-layers. The reflectivity of the 13.5 nm x rays is ranging from 35% to 55%. We use a deformable mirror for the secondary mirror, which has also been coated with Mo/Si multi-layers. This mirror consists of 31 element-bimorph-piezo electrodes. The surface roughness of the mirror is ~6 nm rms. The reflectivity of the 13.5 nm x rays is roughly 65%. The adaptive optics system using an optical laser and a wave front sensor has been performed. We are using a shack-hartmann sensor (HASO 32) with a micro-lens array and a CCD. A pin hole with one micron diameter is used for the optical light source. The precision of the measurement of the wave front shape is a few nm. X-ray exposure test is now conducting, although the optical adaptive optics system is not yet installed. The x-ray detector is a back illumination CCD. The quantum efficiency for 13.5 nm x ray is ~50%. The pixel size is 24 micron square. X-ray source is an electron impact source with an Al/Si alloy target. We confirmed that the x-ray intensity around 13.55 nm is bright enough for our experiment. The imaging performance is now trying to improve and the adaptive optics system will be installed in this year.

Proceedings Article | 11 October 2004 Paper

Paper

Evaluation of an ultra-high-precision x-ray optics

Shunji Kitamoto, Norimasa Yamamoto, Takayoshi Kohmura, Kazuharu Suga, Hiroyuki Sekiguchi, Youhei Ohkawa, Junichi Kanai, Shigeto Chiba, Junichi Sato, Keisuke Sudo, Takeshi Watanabe

Proceedings Volume 5488, (2004) https://doi.org/10.1117/12.550364

KEYWORDS: Wavefronts, Mirrors, Deformable mirrors, X-rays, Space telescopes, X-ray telescopes, Telescopes, X-ray optics, Charge-coupled devices, Wavefront sensors

Read Abstract +

Proceedings Article | 11 October 2004 Paper

Paper

Soft x-ray response of x-ray CCD camera XIS onboard Astro-E2

Kiyoshi Hayashida, Kennichi Torii, Masaaki Namiki, Takayuki Shiroshoji, Masayuki Shoji, Satoru Katsuda, Daisuke Matsuura, Tomofumi Miyauchi, Hiroshi Tsunemi, Takayoshi Kohmura, Haruyoshi Katayama

Proceedings Volume 5488, (2004) https://doi.org/10.1117/12.552037

KEYWORDS: X-rays, Calibration, Quantum efficiency, Charge-coupled devices, Cameras, Fermium, Frequency modulation, CCD cameras, Spectroscopy, X-ray imaging

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Proceedings Article | 11 October 2004 Paper

Paper

Wide band X-ray Imager (WXI) and Soft Gamma-ray Detector (SGD) for the NeXT Mission

Tadayuki Takahashi, A. Awaki, Tadayasu Dotani, Yasushi Fukazawa, Kiyoshi Hayashida, Tuneyoshi Kamae, Jun Kataoka, Nobuyuki Kawai, Shunji Kitamoto, Takayoshi Kohmura, Motohide Kokubun, Katsuji Koyama, Kazuo Makishima, Hironori Matsumoto, Emi Miyata, T. Murakami, Kazuhiro Nakazawa, Masaharu Nomachi, Masanobu Ozaki, Hiroyasu Tajima, Makoto Tashiro, Toru Tamagawa, Yukikatsu Terada, Hiroshi Tsunemi, Takeshi Tsuru, Kazutaka Yamaoka, D. Yonetoku, Atsumasa Yoshida

Proceedings Volume 5488, (2004) https://doi.org/10.1117/12.551500

KEYWORDS: Sensors, Hard x-rays, Charge-coupled devices, X-rays, CCD image sensors, Telescopes, X-ray imaging, Gamma radiation, Silicon, Physics

Read Abstract +

Proceedings Article | 29 January 2004 Paper

Paper

Soft x-ray transmission of optical blocking filters for the x-ray CCD camera onboard Astro-E2

Shunji Kitamoto, Takayoshi Kohmura, Norimasa Yamamoto, Haruko Takano, Harue Saito, Kazuharu Suga, Hiroyuki Sekiguchi, S. Chiba, I. Okamoto, Kiyoshi Hayashida, Haruyoshi Katayama, Toyonaka Enoguchi, Yuusuke Nakashima, T. Shiroshouji, Yuzuru Tawara, Akihiro Furuzawa, Takeshi Tanaka

Proceedings Volume 5168, (2004) https://doi.org/10.1117/12.505589

KEYWORDS: X-rays, Aluminum, X-ray optics, Transmittance, Optical filters, Absorption, CCD cameras, Data modeling, X-ray astronomy, Oxidation

Read Abstract +

Proceedings Article | 24 December 2003 Paper

Paper

Development of ultrahigh-precision x-ray optics

Shunji Kitamoto, Haruko Takano, Harue Saitoh, Norimasa Yamamoto, Takayoshi Kohmura, Kazuharu Suga, Hiroyuki Sekiguchi, Yohei Ohkawa, Jun'ichi Kanai, Shigeto Chiba

Proceedings Volume 5169, (2003) https://doi.org/10.1117/12.505571

KEYWORDS: Wavefronts, Deformable mirrors, X-rays, Mirrors, X-ray optics, Charge-coupled devices, X-ray telescopes, Telescopes, Optical filters, Wavefront sensors

Read Abstract +

Proceedings Article | 16 June 2003 Paper

Paper

Development of an ultra high-precision x-ray telescope with an adaptive optics system

Shunji Kitamoto, Haruko Takano, Harue Saitoh, Norimasa Yamamoto, Takayoshi Kohmura, Kazuharu Suga, Hiroyuki Sekiguchi

Proceedings Volume 5037, (2003) https://doi.org/10.1117/12.482338

KEYWORDS: X-rays, Mirrors, X-ray optics, X-ray telescopes, Deformable mirrors, Optical filters, Telescopes, Adaptive optics, Wavefront sensors, Diffraction

Read Abstract +

Proceedings Article | 18 July 2000 Paper

Paper

Characteristics around oxygen and silicon K absorption edges of a charge-coupled device

Kouji Mori, Makoto Shouho, Haruyoshi Katayama, Shunji Kitamoto, Hiroshi Tsunemi, Kiyoshi Hayashida, Emi Miyata, Motoari Ohta, Takayoshi Kohmura, Katsuji Koyama, Mark Bautz, Richard Foster, Steven Kissel

Proceedings Volume 4012, (2000) https://doi.org/10.1117/12.391590

KEYWORDS: Silicon, Absorption, Charge-coupled devices, Oxygen, X-rays, Silica, Spectroscopy, Data modeling, Sensors, Quantum efficiency

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Proceedings Article | 18 July 2000 Paper

Paper

X-ray imaging spectrometers for Astro-E: ground calibration in the soft x-ray range

Kiyoshi Hayashida, Shunji Kitamoto, Emi Miyata, Hiroshi Tsunemi, Kumi Yoshita, Takayoshi Kohmura, Kouji Mori, Kazunori Katayama, Haruyoshi Katayama, Makoto Shouho, Motoari Ohta, Tadayasu Dotani, Masanobu Ozaki, Katsuji Koyama, Hisamitsu Awaki, Takeshi Tsuru, George Ricker, Mark Bautz, Richard Foster, Steven Kissel

Proceedings Volume 4012, (2000) https://doi.org/10.1117/12.391548

KEYWORDS: X-rays, Charge-coupled devices, Quantum efficiency, Calibration, Fermium, Frequency modulation, Spectrometers, Cameras, X-ray astronomy, CCD cameras

Read Abstract +

Proceedings Article | 22 October 1999 Paper

Paper

Calibration of the X-ray CCD camera (XIS) for the ASTRO-E in the soft-x-ray band

Haruyoshi Katayama, Makoto Shouho, Takayoshi Kohmura, Kazunori Katayama, Motoari Ohta, Hiroshi Tsunemi, Shunji Kitamoto, Kiyoshi Hayashida, Emi Miyata, Kumi Yoshita, Katsuji Koyama, George Ricker, Mark Bautz, Richard Foster, Steven Kissel, John Doty

Proceedings Volume 3765, (1999) https://doi.org/10.1117/12.366554

KEYWORDS: X-rays, Charge-coupled devices, Calibration, Spectrometers, CCD cameras, X-ray imaging, Computer simulations, Silicon, Absorption, Data modeling

Read Abstract +

Proceedings Article | 22 October 1999 Paper

Paper

Quantum efficiency measurement of the x-ray CCD camera (XIS) for the ASTRO-E mission in the soft-x-ray band

Takayoshi Kohmura, Kazunori Katayama, Haruyoshi Katayama, Makoto Shouho, Hiroshi Tsunemi, Shunji Kitamoto, Kiyoshi Hayashida, Emi Miyata, Masayuki Ohtani, Motoari Ohta, Kumi Yoshita, Katsuji Koyama, George Ricker, Mark Bautz, Richard Foster, Steven Kissel

Proceedings Volume 3765, (1999) https://doi.org/10.1117/12.366538

KEYWORDS: X-rays, Transmittance, Charge-coupled devices, Quantum efficiency, X-ray optics, Aluminum, Tin, CCD cameras, X-ray imaging, Silicon

Read Abstract +

Proceedings Article | 10 November 1998 Paper

Paper

Soft x-ray response of the prototype CCD camera (XIS) for Astro-E

Kiyoshi Hayashida, Shunji Kitamoto, Emi Miyata, Hiroshi Tsunemi, Kiyoshi Hashimotodani, Kazunori Katayama, Takayoshi Kohmura, Reiko Asakura, Kumi Yoshita, Haruyoshi Katayama, Makoto Shouho, Katsuji Koyama, Takeshi Tsuru, Hisamitsu Awaki, Tadayasu Dotani, Masanobu Ozaki, George Ricker, John Doty, Mark Bautz, Steven Kissel, Richard Foster

Proceedings Volume 3445, (1998) https://doi.org/10.1117/12.330285

KEYWORDS: X-rays, Charge-coupled devices, Calibration, Cameras, CCD cameras, X-ray imaging, Silicon, X-ray telescopes, Spectrometers, Satellites

Read Abstract +

Showing 5 of 52 publications

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