Dr. Kumi Ishikawa Profile

Dr. Kumi Ishikawa

at Tokyo Metropolitan Univ

SPIE Involvement:

Author

Publications (36)

SPIE Journal Paper | 28 December 2023 Open Access

Open Access

Development of the focal-plane CMOS detector for the GEO-X mission

Hiroshi Nakajima, Shotaro Nakamura, Kouichi Hagino, Ayumi Kiuchi, Takuya Matsumoto, Tohya Yamagami, Tomokage Yoneyama, Junko Hiraga, Yuichiro Ezoe, Masaki Numazawa, Kumi Ishikawa, Hisashi Kitamura

JATIS, Vol. 10, Issue 01, 016001, (December 2023) https://doi.org/10.1117/12.10.1117/1.JATIS.10.1.016001

KEYWORDS: X-rays, CMOS sensors, Sensors, Detector development, Dark current, Ultraviolet detectors, Ultraviolet radiation, Pulse signals, Magnetosphere, X-ray imaging

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SPIE Journal Paper | 12 September 2023

GEOspace X-ray imager (GEO-X)

Yuichiro Ezoe, Ryu Funase, Harunori Nagata, Yoshizumi Miyoshi, Hiroshi Nakajima, Ikuyuki Mitsuishi, Kumi Ishikawa, Masaki Numazawa, Yosuke Kawabata, Shintaro Nakajima, Ryota Fuse, Ralf Boden, Landon Kamps, Tomokage Yoneyama, Kouichi Hagino, Yosuke Matsumoto, Keisuke Hosokawa, Satoshi Kasahara, Junko Hiraga, Kazuhisa Mitsuda, Masaki Fujimoto, Munetaka Ueno, Atsushi Yamazaki, Hiroshi Hasegawa, Takefumi Mitani, Yasuhiro Kawakatsu, Takahiro Iwata, Hiroyuki Koizumi, Hironori Sahara, Yoshiaki Kanamori, Kohei Morishita, Daiki Ishi, Aoto Fukushima, Ayata Inagaki, Yoko Ueda, Hiromi Morishita, Yukine Tsuji, Runa Sekiguchi, Takatoshi Murakawa, Kazuma Yamaguchi, Rei Ishikawa, Daiki Morimoto, Yudai Yamada, Shota Hirai, Yuki Nobuhara, Yownin Leung, Yamato Itoigawa, Ryo Onodera, Satoru Kotaki, Shotaro Nakamura, Ayumi Kiuchi, Takuya Matsumoto, Midori Hirota, Kazuto Kashiwakura

JATIS, Vol. 9, Issue 03, 034006, (September 2023) https://doi.org/10.1117/12.10.1117/1.JATIS.9.3.034006

KEYWORDS: Satellites, X-rays, X-ray imaging, Magnetosphere, Solar processes, X-ray astronomy, Spatial resolution, Satellite imaging, X-ray telescopes, Simulations

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Proceedings Article | 8 June 2023 Presentation

Presentation

Development of silicon foil X-ray optics using hot plastic deformation process (Conference Presentation)

Masaki Numazawa, Manabu Ishida, Yuichiro Ezoe, Mai Takeo, Asca Miyamoto, Kumi Ishikawa, Kohei Morishita, Kazuo Nakajima

Proceedings Volume PC12576, PC1257603 (2023) https://doi.org/10.1117/12.2665153

KEYWORDS: Silicon, X-ray optics, Semiconducting wafers, Spatial resolution, Mirrors, Wafer-level optics, X-ray imaging, X-rays, X-ray astronomy, Thin films

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Proceedings Article | 8 June 2023 Presentation

Presentation

Assembly of an ultralight weight X-ray telescope using MEMS technologies (Conference Presentation)

Hiromi Morishita, Yuichiro Ezoe, Kumi Ishikawa, Masaki Numazawa, Daiki Ishi, Aoto Fukushima, Ayata Inagaki, Yoko Ueda, Luna Sekiguchi, Yukine Tsuji, Takatoshi Murakawa, Kazuma Yamaguchi, Rei Ishikawa, Daiki Morimoto, Yudai Yamada, Kazuhisa Mitsuda, Kohei Morishita, Kazuo Nakajima, Yoshiaki Kanamori

Proceedings Volume PC12576, PC1257602 (2023) https://doi.org/10.1117/12.2665160

KEYWORDS: X-ray telescopes, Microelectromechanical systems, X-rays, Semiconducting wafers, Optical fabrication, X-ray optics, Wafer-level optics, Silicon, Telescopes, Satellites

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Proceedings Article | 31 August 2022 Presentation + Paper

Presentation + Paper

Development of Bragg reflection-type x-ray polarimeter based on a bent silicon crystal using hot plastic deformation

Y. Ueda, T. Uchino, D. Ishi, Y. Ezoe, K. Ishikawa, M. Numazawa, A. Fukushima, S. Sakuda, A. Inagaki, H. Morishita, L. Sekiguchi, T. Murakawa, Y. Tsuji, K. Mitsuda, K. Morishita, K. Nakajima

Proceedings Volume 12181, 121812O (2022) https://doi.org/10.1117/12.2629635

KEYWORDS: X-rays, Silicon, Semiconducting wafers, Modulation, Polarization, Reflection, X-ray astronomy

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Proceedings Article | 31 August 2022 Presentation + Paper

Presentation + Paper

GEO-X (GEOspace X-ray imager)

Yuichiro Ezoe, Ryu Funase, Harunori Nagata, Yoshizumi Miyoshi, Hiroshi Nakajima, Ikuyuki Mitsuishi, Kumi Ishikawa, Yosuke Kawabata, Shintaro Nakajima, Landon Kamps, Masaki Numazawa, Tomokage Yoneyama, Kouichi Hagino, Yosuke Matsumoto, Keisuke Hosokawa, Satoshi Kasahara, Junko Hiraga, Kazuhisa Mitsuda, Masaki Fujimoto, Munetaka Ueno, Atsushi Yamazaki, Hiroshi Hasegawa, Takefumi Mitani, Yasuhiro Kawakatsu, Takahiro Iwata, Hiroyuki Koizumi, Hironori Sahara, Yoshiaki Kanamori, Kohei Morishita

Proceedings Volume 12181, 1218124 (2022) https://doi.org/10.1117/12.2629107

KEYWORDS: Satellites, X-rays, Magnetosphere, X-ray astronomy

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Proceedings Article | 31 August 2022 Presentation + Paper

Presentation + Paper

Development of the focal-plane CMOS detector for the GEO-X mission

Hiroshi Nakajima, Shotaro Nakamura, Koichi Hagino, Ayumi Kiuchi, Takuya Matsumoto, Tohya Yamagami, Tomokage Yoneyama, Junko Hiraga, Yuichiro Ezoe, Kumi Ishikawa

Proceedings Volume 12181, 121812C (2022) https://doi.org/10.1117/12.2628788

KEYWORDS: Sensors, X-rays, CMOS sensors, X-ray imaging, Spectroscopy, Magnetosphere, Detector development, X-ray detectors

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We are developing an x-ray CMOS detector for the GEO-X (GEOspace x-ray imager) mission that will perform soft x-ray (≤2 keV) imaging spectroscopy of Earth’s magnetosphere using a micro satellite. The mission instrument consists of a MEMS x-ray mirror and a focal plane detector. For the latter, we need a sensor with fine positional resolution and moderate energy resolution in the energy band of 0.3 to 2 keV. Because we observe the day-side structure of the earth’s magnetosphere, visible-light background must be decreased by shortening the integration time for readout. To satisfy the above requirements, a high-speed x-ray CMOS sensor is being evaluated as a primary candidate for the detector. We adopt back-side illuminated sensors that have been originally developed for visible-light or UV imaging. The sensors have different specification in terms of the thickness of epitaxial wafer and specific resistance. Irradiating sensors with monochromatic x-rays from ⁵⁵Fe, we obtained the energy resolution of 205 and 227 eV (FWHM) depending on the sensor type for single pixel events at 6 keV by cooling down the sensor to −15°C. On the other hand, we found that the pulse height of the events whose charges spread over multiple pixels are significantly lower than that of single pixel events in some chips. Then we selected the chips that shows better charge collection efficiency as flight candidate. Radiation tolerance of the sensor, especially in terms of total dose effect, is investigated with 100 MeV proton. The amount of dose ranges up to 100 krad depending on position in the sensor. In spite of the excessive dose compared with 10 krad/yr in the expected highly elliptical orbit, Mn Kα and Kβ are well resolved. The amount of degradation of energy resolution is less than 50 eV up to 10 krad, which ensures that we will be able to track and calibrate the change of the line width in orbit We also utilize multi-color x-rays to investigate spectroscopic performance in the energy band of 0.5 to 7 keV. Multiple lines below 1 keV are resolved and energy resolutions are evaluated as well as linearity performance.

Proceedings Article | 31 August 2022 Poster + Paper

Poster + Paper

Ultra-lightweight x-ray telescope fabricated with multiple MEMS technologies for GEO-X mission

Masaki Numazawa, Yuichiro Ezoe, Kumi Ishikawa, Daiki Ishi, Aoto Fukushima, Sae Sakuda, Tomoki Uchino, Ayata Inagaki, Hiromi Morishita, Yoko Ueda, Takatoshi Murakawa, Luna Sekiguchi, Yukine Tsuji, Ikuyuki Mitsuishi, Hiroshi Nakajima, Yoshiaki Kanamori, Kohei Morishita, Kazuhisa Mitsuda

Proceedings Volume 12181, 121815G (2022) https://doi.org/10.1117/12.2630501

KEYWORDS: X-rays, X-ray optics, Reflectivity, Microelectromechanical systems, Annealing, X-ray telescopes, Telescopes, Mirrors, Semiconducting wafers, X-ray imaging

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Proceedings Article | 31 August 2022 Presentation + Paper

Presentation + Paper

Status of resolve instrument onboard X-Ray Imaging and Spectroscopy Mission (XRISM)

Yoshitaka Ishisaki, Richard Kelley, Hisamitsu Awaki, Jesus Balleza, Kim Barnstable, Thomas Bialas, Rozenn Boissay-Malaquin, Gregory Brown, Edgar Canavan, Renata Cumbee, Timothy Carnahan, Meng Chiao, Brian Comber, Elisa Costantini, Jan-Willem den Herder, Johannes Dercksen, Cor de Vries, Michael DiPirro, Megan Eckart, Yuichiro Ezoe, Carlo Ferrigno, Ryuichi Fujimoto, Nathalie Gorter, Steven Graham, Martin Grim, Leslie Hartz, Ryota Hayakawa, Takayuki Hayashi, Natalie Hell, Akio Hoshino, Yuto Ichinohe, Manabu Ishida, Kumi Ishikawa, Bryan James, Steven Kenyon, Caroline Kilbourne, Mark Kimball, Shunji Kitamoto, Maurice Leutenegger, Yoshitomo Maeda, Dan McCammon, Joseph Miko, Misaki Mizumoto, Takashi Okajima, Atsushi Okamoto, Stephane Paltani, Frederick Porter, Kosuke Sato, Toshiki Sato, Makoto Sawada, Keisuke Shinozaki, Russell Shipman, Peter Shirron, Gary Sneiderman, Yang Soong, Richard Szymkiewicz, Andrew Szymkowiak, Yoh Takei, Keisuke Tamura, Masahiro Tsujimoto, Yuusuke Uchida, Stephen Wasserzug, Michael Witthoeft, Rob Wolfs, Shinya Yamada, Susumu Yasuda

Proceedings Volume 12181, 121811S (2022) https://doi.org/10.1117/12.2630654

KEYWORDS: Sensors, X-rays, Space operations, Helium, Cryocoolers, Calibration, Optical filters, Sensor performance, X-ray detectors, Signal processing

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Proceedings Article | 31 August 2022 Poster + Paper

Poster + Paper

Collimator of the ultra-lightweight x-ray telescope for the GEO-X mission

Kumi Ishikawa, Takatoshi Murakawa, Daiki Ishi, Masaki Numazawa, Aoto Fukushima, Sae Sakuda, Tomoki Uchino, Ayata Inagaki, Hiromi Morishita, Yoko Ueda, Luna Sekiguchi, Yukine Tsuji, Yuichiro Ezoe

Proceedings Volume 12181, 121816O (2022) https://doi.org/10.1117/12.2631464

KEYWORDS: X-rays, Collimators, Stray light, X-ray optics, X-ray imaging, Magnetosphere, Microelectromechanical systems

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Proceedings Article | 4 January 2021 Presentation + Paper

Presentation + Paper

Developing the detector of x-ray imaging spectrometer for GEO-X mission

Hiroshi Nakajima, Shotaro Nakamura, Hikaru Kouno, Junko Hiraga, Daito Yuhi, Yuichiro Ezoe, Kumi Ishikawa

Proceedings Volume 11454, 114540K (2021) https://doi.org/10.1117/12.2562221

KEYWORDS: Sensors, X-ray imaging, X-rays, Wind energy, Detector development, Image sensors, Spectroscopy, X-ray detectors, Magnetosphere, CMOS sensors

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Proceedings Article | 13 December 2020 Paper

Paper

GEO-X (GEOspace x-ray imager)

Yuichiro Ezoe, Ryu Funase, Harunori Nagata, Yoshizumi Miyoshi, Satoshi Kasahara, Hiroshi Nakajima, Ikuyuki Mitsuishi, Kumi Ishikawa, Junko Hiraga, Kazuhisa Mitsuda, Masaki Fujimoto, Munetaka Ueno, Atsushi Yamazaki, Hiroshi Hasegawa, Yosuke Matsumoto, Yasuhiro Kawakatsu, Takahiro Iwata, Hironori Sahara, Yoshiaki Kanamori, Kohei Morishita, Hiroyuki Koizumi, Makoto Mita, Takefumi Mitani, Masaki Numazawa, Landon Kamps, Yusuke Kawabata

Proceedings Volume 11444, 1144428 (2020) https://doi.org/10.1117/12.2560780

KEYWORDS: X-ray imaging, X-rays, X-ray astronomy, Satellites, X-ray optics, X-ray technology, Satellite imaging, Magnetosphere, Earth observing sensors, Spectroscopy

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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 Poster + Paper

Poster + Paper

Source position determination method of multiplexing lobster-eye optics

Keisuke Uchiyama, Toru Tamagawa, Tatehiro Mihara, Yuanhui Zhou, Yuichiro Ezoe, Masaki Numazawa, Daiki Ishi, Ryota Otsubo, Aoto Fukushima, Tatsuya Yuasa, Hikaru Suzuki, Tomoki Uchino, Sae Sakuda, Kumi Ishikawa

Proceedings Volume 11444, 114447E (2020) https://doi.org/10.1117/12.2560427

KEYWORDS: Multiplexing, Imaging systems, X-rays, Sensors, X-ray imaging, Optical design, Mirrors

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SPIE Journal Paper | 30 June 2020 Open Access

Open Access

Multiplexing lobster-eye optics: a concept for wide-field x-ray monitoring

Toru Tamagawa, Keisuke Uchiyama, Ryota Otsubo, Tatsuya Yuasa, Yuanhui Zhou, Tatehiro Mihara, Yuichiro Ezoe, Masaki Numazawa, Daiki Ishi, Aoto Fukushima, Hikaru Suzuki, Tomoki Uchino, Sae Sakuda, Kumi Ishikawa, Teruaki Enoto, Takanori Sakamoto

JATIS, Vol. 6, Issue 02, 025003, (June 2020) https://doi.org/10.1117/12.10.1117/1.JATIS.6.2.025003

KEYWORDS: Image segmentation, X-rays, Photons, Imaging systems, Mirrors, X-ray optics, Multiplexing, X-ray imaging, Ray tracing

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SPIE Journal Paper | 4 October 2018 Open Access

Open Access

Ultralightweight x-ray telescope missions: ORBIS and GEO-X

Yuichiro Ezoe, Yoshizumi Miyoshi, Satoshi Kasahara, Tomoki Kimura, Kumi Ishikawa, Masaki Fujimoto, Kazuhisa Mitsuda, Hironori Sahara, Naoki Isobe, Hiroshi Nakajima, Takaya Ohashi, Harunori Nagata, Ryu Funase, Munetaka Ueno, Graziella Branduardi-Raymont

JATIS, Vol. 4, Issue 04, 046001, (October 2018) https://doi.org/10.1117/12.10.1117/1.JATIS.4.4.046001

KEYWORDS: X-rays, X-ray optics, X-ray telescopes, Satellites, Microelectromechanical systems, Spatial resolution, Mirrors, Magnetosphere, Semiconducting wafers, Atomic layer deposition

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Proceedings Article | 10 July 2018 Presentation

Presentation

Status of resolve instrument for x-ray astronomy recovery mission (Conference Presentation)

Yoshitaka Ishisaki, Richard Kelley, Hiroki Akamatsu, Hisamitsu Awaki, Thomas Bialas, Gregory Brown, Meng Chiao, Elisa Costantini, Jan-Willem den Herder, Michael Dipirro, Megan Eckart, Yuichiro Ezoe, Carlo Ferrigno, Ryuichi Fujimoto, Akihiro Furuzawa, Steven Graham, Martin Grim, Takayuki Hayashi, Akio Hoshino, Yuto Ichinohe, Ryo Iizuka, Kazunori Ishibashi, Manabu Ishida, Kumi Ishikawa, Caroline Kilbourne, Shunji Kitamoto, Shu Koyama, Maurice Leutenegger, Yoshitomo Maeda, Dan McCammon, Ikuyuki Mitsuishi, Hideyuki Mori, Shinya Nakashima, Hirofumi Noda, Takaya Ohashi, Takashi Okajima, Stephane Paltani, F. Scott Porter, Kosuke Sato, Makoto Sawada, Hiromi Seta, Peter Shirron, Gary Sneiderman, Yang Soong, Andrew Szymkowiak, Yoh Takei, Toru Tamagawa, Masahiro Tsujimoto, Shutaro Ueda, Cor de Vries, Shinya Yamada, Noriko Yamasaki

Proceedings Volume 10699, 1069924 (2018) https://doi.org/10.1117/12.2313440

KEYWORDS: X-ray astronomy, X-rays, Silicon, Mirrors, Spectroscopy, Image resolution, Spectroscopes, X-ray telescopes, Optical instrument design

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Proceedings Article | 6 July 2018 Paper

Paper

Small satellites with MEMS x-ray telescopes for x-ray astronomy and solar system exploration

Yuichiro Ezoe, Yoshizumi Miyoshi, Satoshi Kasahara, Tomoki Kimura, Kumi Ishikawa, Masaki Fujimoto, Kazuhisa Mitsuda, Hironori Sahara, Naoki Isobe, Hiroshi Nakajima, Takaya Ohashi, Haruki Nagata, Ryu Funase, Munetaka Ueno, Graziella Branduardi-Raymont

Proceedings Volume 10699, 106990V (2018) https://doi.org/10.1117/12.2311422

KEYWORDS: X-rays, Microelectromechanical systems, Satellites, X-ray telescopes

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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 | 29 December 2017 Open Access

Open Access

Performance of the helium dewar and the cryocoolers of the Hitomi soft x-ray spectrometer

Ryuichi Fujimoto, Yoh Takei, Kazuhisa Mitsuda, Noriko Yamasaki, Masahiro Tsujimoto, Shu Koyama, Kumi Ishikawa, Hiroyuki Sugita, Yoichi Sato, Keisuke Shinozaki, Atsushi Okamoto, Shunji Kitamoto, Akio Hoshino, Kosuke Sato, Yuichiro Ezoe, Yoshitaka Ishisaki, Shinya Yamada, Hiromi Seta, Takaya Ohashi, Toru Tamagawa, Hirofumi Noda, Makoto Sawada, Makoto Tashiro, Yoichi Yatsu, Ikuyuki Mitsuishi, Kenichi Kanao, Seiji Yoshida, Mikio Miyaoka, Shoji Tsunematsu, Kiyomi Otsuka, Katsuhiro Narasaki, Michael DiPirro, Peter Shirron, Gary Sneiderman, Caroline Kilbourne, Frederick Scott Porter, Meng Chiao, Megan Eckart

JATIS, Vol. 4, Issue 01, 011208, (December 2017) https://doi.org/10.1117/12.10.1117/1.JATIS.4.1.011208

KEYWORDS: Cryocoolers, Helium, X-rays, Spectroscopy, Sensors, Liquids, Space operations, Rockets, Chemical mechanical planarization, Physics

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SPIE Journal Paper | 6 November 2017 Open Access

Open Access

In-orbit operation of the soft x-ray spectrometer onboard the Hitomi satellite

Masahiro Tsujimoto, Kazuhisa Mitsuda, Richard Kelley, Jan-Willem den Herder, Thomas Bialas, Kevin Boyce, Meng Chiao, Cor de Vries, Michael DiPirro, Megan Eckart, Yuichiro Ezoe, Ryuichi Fujimoto, Akio Hoshino, Kumi Ishikawa, Yoshitaka Ishisaki, Caroline Kilbourne, Shu Koyama, Maurice Leutenegger, Candace Masters, Ikuyuki Mitsuishi, Hirofumi Noda, Takashi Okajima, Atsushi Okamoto, Frederick Porter, Kosuke Sato, Yohichi Sato, Joseph Savinell, Makoto Sawada, Hiromi Seta, Peter Shirron, Gary Sneiderman, Yoh Takei, Toru Tamagawa, Makoto Tashiro, Tomomi Watanabe, Shinya Yamada, Noriko Y. Yamasaki, Yoichi Yatsu

JATIS, Vol. 4, Issue 01, 011205, (November 2017) https://doi.org/10.1117/12.10.1117/1.JATIS.4.1.011205

KEYWORDS: X-rays, Satellites, Spectroscopy, Space operations, Sensors, Physics, Filtering (signal processing), Calibration, Control systems, Field effect transistors

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SPIE Journal Paper | 27 October 2017 Open Access

Open Access

Thermal analyses for initial operations of the soft x-ray spectrometer onboard the Hitomi satellite

Hirofumi Noda, Kazuhisa Mitsuda, Atsushi Okamoto, Yuichiro Ezoe, Kumi Ishikawa, Ryuichi Fujimoto, Noriko Yamasaki, Yoh Takei, Takaya Ohashi, Yoshitaka Ishisaki, Ikuyuki Mitsuishi, Seiji Yoshida, Michael DiPirro, Peter Shirron

JATIS, Vol. 4, Issue 01, 011202, (October 2017) https://doi.org/10.1117/12.10.1117/1.JATIS.4.1.011202

KEYWORDS: Helium, X-rays, Spectroscopy, Thermal analysis, Temperature metrology, Satellites, Mathematical modeling, Liquids, Cryocoolers, Cooling systems

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SPIE Journal Paper | 27 October 2017 Open Access

Open Access

Porous plug phase separator and superfluid film flow suppression system for the soft x-ray spectrometer onboard Hitomi

Yuichiro Ezoe, Michael DiPirro, Ryuichi Fujimoto, Kumi Ishikawa, Yoshitaka Ishisaki, Kenichi Kanao, Mark Kimball, Kazuhisa Mitsuda, Ikuyuki Mitsuishi, Masahide Murakami, Hirofumi Noda, Takaya Ohashi, Atsushi Okamoto, Yohichi Satoh, Kosuke Sato, Peter Shirron, Shoji Tsunematsu, Hiroya Yamaguchi, Seiji Yoshida

JATIS, Vol. 4, Issue 01, 011203, (October 2017) https://doi.org/10.1117/12.10.1117/1.JATIS.4.1.011203

KEYWORDS: Helium, X-rays, Liquids, Data modeling, Spectroscopy, Cryocoolers, Head, Space operations, Fermium, Frequency modulation

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Proceedings Article | 17 August 2016 Paper

Paper

The Astro-H high resolution soft x-ray spectrometer

Richard Kelley, Hiroki Akamatsu, Phillipp Azzarello, Tom Bialas, Kevin Boyce, Gregory Brown, Edgar Canavan, Meng Chiao, Elisa Costantini, Michael DiPirro, Megan Eckart, Yuichiro Ezoe, Ryuichi Fujimoto, Daniel Haas, Jan-Willem den Herder, Akio Hoshino, Kumi Ishikawa, Yoshitaka Ishisaki, Naoko Iyomoto, Caroline Kilbourne, Mark Kimball, Shunji Kitamoto, Saori Konami, Shu Koyama, Maurice Leutenegger, Dan McCammon, Kazuhisa Mitsuda, Ikuyuki Mitsuishi, Harvey Moseley, Hiroshi Murakami, Masahide Murakami, Hirofumi Noda, Mina Ogawa, Takaya Ohashi, Atsushi Okamoto, Naomi Ota, Stéphane Paltani, F. Porter, Kazuhiro Sakai, Kosuke Sato, Yohichi Sato, Makoto Sawada, Hiromi Seta, Keisuke Shinozaki, Peter Shirron, Gary Sneiderman, Hiroyuki Sugita, Andrew Szymkowiak, Yoh Takei, Toru Tamagawa, Makoto Tashiro, Yukikatsu Terada, Masahiro Tsujimoto, Cor de Vries, Shinya Yamada, Noriko Yamasaki, Yoichi Yatsu

Proceedings Volume 9905, 99050V (2016) https://doi.org/10.1117/12.2232509

KEYWORDS: X-rays, Sensors, Spectroscopy, Space operations, Lithium, Field effect transistors, Satellites, Calibration, Single crystal X-ray diffraction, Magnetic sensors

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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

Performance of the helium dewar and cryocoolers of ASTRO-H SXS

Ryuichi Fujimoto, Yoh Takei, Kazuhisa Mitsuda, Noriko Yamasaki, Masahiro Tsujimoto, Shu Koyama, Kumi Ishikawa, Hiroyuki Sugita, Yoichi Sato, Keisuke Shinozaki, Atsushi Okamoto, Shunji Kitamoto, Akio Hoshino, Kosuke Sato, Yuichiro Ezoe, Yoshitaka Ishisaki, Shinya Yamada, Hiromi Seta, Takaya Ohashi, Toru Tamagawa, Hirofumi Noda, Makoto Sawada, Makoto Tashiro, Yoichi Yatsu, Ikuyuki Mitsuishi, Kenichi Kanao, Seiji Yoshida, Mikio Miyaoka, Shoji Tsunematsu, Kiyomi Otsuka, Katsuhiro Narasaki, Michael DiPirro, Peter Shirron, Gary Sneiderman, Caroline Kilbourne, F. Scott Porter, Meng Chiao, Megan Eckart, Richard Kelley

Proceedings Volume 9905, 99053S (2016) https://doi.org/10.1117/12.2232933

KEYWORDS: Cryocoolers, Helium, X-rays, Sensors, Spectroscopy, Cryocoolers, Satellites, Contamination, X-ray telescopes, Space telescopes, X-ray imaging

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Proceedings Article | 18 July 2016 Paper

Paper

Thermal analyses for initial operations of the Soft X-Ray Spectrometer (SXS) onboard ASTRO-H

Hirofumi Noda, Kazuhisa Mitsuda, Atsushi Okamoto, Yuichiro Ezoe, Kumi Ishikawa, Ryuichi Fujimoto, Noriko Yamasaki, Yoh Takei, Takaya Ohashi, Yoshitaka Ishisaki, Ikuyuki Mitsuishi, Seiji Yoshida, Michael DiPirro, Peter Shirron

Proceedings Volume 9905, 99053R (2016) https://doi.org/10.1117/12.2231356

KEYWORDS: Helium, X-rays, Liquids, Spectroscopy, Cryocoolers, Data modeling, Head, Fermium, Frequency modulation, Space operations

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Proceedings Article | 18 July 2016 Paper

Paper

Porous plug phase separator and superfluid film flow suppression system for the soft x-ray spectrometer onboard ASTRO-H

Yuichiro Ezoe, Kumi Ishikawa, Ikuyuki Mitsuishi, Takaya Ohashi, Kazuhisa Mitsuda, Ryuichi Fujimoto, Masahide Murakami, Kenichi Kanao, Seiji Yoshida, Shoji Tsunematsu, Michael DiPirro, Peter Shirron

Proceedings Volume 9905, 99053P (2016) https://doi.org/10.1117/12.2231968

KEYWORDS: X-rays, Spectroscopy, X-rays, Spectroscopy, Helium, Sensors, Crystals, Polarization, Hard x-rays, Signal detection, Interfaces, Spectroscopes

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Proceedings Article | 18 July 2016 Paper

Paper

In-orbit operation of the ASTRO-H SXS

Masahiro Tsujimoto, Kazuhisa Mitsuda, Richard Kelley, Jan-Willem den Herder, Hiroki Akamatsu, Thomas Bialas, Kevin Boyce, Gregory Brown, Meng Chiao, Elisa Costantini, Cor de Vries, Michael DiPirro, Megan Eckart, Yuichiro Ezoe, Ryuichi Fujimoto, Daniel Haas, Akio Hoshino, Kumi Ishikawa, Yoshitaka Ishisaki, Naoko Iyomoto, Caroline Kilbourne, Shunji Kitamoto, Shu Koyama, Maurice Leutenegger, Dan McCammon, Ikuyuki Mitsuishi, Hiroshi Murakami, Masahide Murakami, Hirofumi Noda, Mina Ogawa, Naomi Ota, Stéphane Paltani, Frederick Porter, Kosuke Sato, Yoichi Sato, Makoto Sawada, Hiromi Seta, Keisuke Shinozaki, Peter Shirron, Gary Sneiderman, Hiroyuki Sugita, Andrew Szymkowiak, Yoh Takei, Toru Tamagawa, Makoto Tashiro, Yukikatsu Terada, Shinya Yamada, Noriko Yamasaki, Yoichi Yatsu

Proceedings Volume 9905, 99050Y (2016) https://doi.org/10.1117/12.2231784

KEYWORDS: X-rays, Spectroscopy, Satellites, Sensors, Space operations, Lithium, Field effect transistors, Calibration, Satellite communications, Single crystal X-ray diffraction

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Proceedings Article | 24 July 2014 Paper

Paper

Soft x-ray spectrometer (SXS): the high-resolution cryogenic spectrometer onboard ASTRO-H

Kazuhisa Mitsuda, Richard Kelley, Hiroki Akamatsu, Thomas Bialas, Kevin Boyce, Gregory Brown, Edgar Canavan, Meng Chiao, Elisa Costantini, Jan-Willem den Herder, Cor de Vries, Michael DiPirro, Megan Eckart, Yuichiro Ezoe, Ryuichi Fujimoto, Daniel Haas, Akio Hoshino, Kumi Ishikawa, Yoshitaka Ishisaki, Naoko Iyomoto, Caroline Kilbourne, Mark Kimball, Shunji Kitamoto, Saori Konami, Maurice Leutenegger, Dan McCammon, Joseph Miko, Ikuyuki Mitsuishi, Hiroshi Murakami, Masahide Murakami, Hirofumi Noda, Mina Ogawa, Takaya Ohashi, Atsushi Okamoto, Naomi Ota, Stéphane Paltani, F. Scott Porter, Kosuke Sato, Yoichi Sato, Makoto Sawada, Hiromi Seta, Keisuke Shinozaki, Peter Shirron, Gary Sneiderman, Hiroyuki Sugita, Andrew Szymkowiak, Yoh Takei, Toru Tamagawa, Makoto Tashiro, Yukikatsu Terada, Masahiro Tsujimoto, Shinya Yamada, Noriko Yamasaki

Proceedings Volume 9144, 91442A (2014) https://doi.org/10.1117/12.2057199

KEYWORDS: X-rays, Fermium, Frequency modulation, Spectroscopy, Optical isolators, Sensors, Cryogenics, X-ray detectors, Image resolution, Calibration

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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 | 14 July 2014 Paper

Paper

High-contrast planet imager for Kyoto 4m segmented telescope

Taro Matsuo, Naoshi Murakami, Takayuki Kotani, Hajime Kawahara, Noriaki Natsume, Masaru Kino, Kodai Yamamoto, Hiroaki Imada, Mikio Kurita, Masatsugu Iribe, Hideya Nishida, Manabu Kida, Hirofumi Kitou, Kumi Ishikawa, Yutaka Uda, Hitoshi Tokoro, Tetsuya Nagata, Fumihide Iwamuro, Noriaki Miura, Shin Oya, Yoichi Itoh, Hiroshi Shibai, Motohide Tamura

Proceedings Volume 9147, 91471V (2014) https://doi.org/10.1117/12.2055751

KEYWORDS: Sensors, Telescopes, Adaptive optics, Wavefronts, Point spread functions, Wavefront sensors, Stars, Cameras, Coronagraphy, Planets

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Proceedings Article | 30 July 2010 Paper

Paper

Cooling system for the soft x-ray spectrometer (SXS) onboard ASTRO-H

Ryuichi Fujimoto, Kazuhisa Mitsuda, Noriko Yamasaki, Yoh Takei, Masahiro Tsujimoto, Hiroyuki Sugita, Yoichi Sato, Keisuke Shinozaki, Atsushi Okamoto, Takaya Ohashi, Yoshitaka Ishisaki, Yuichiro Ezoe, Kumi Ishikawa, Masahide Murakami, Shunji Kitamoto, Hiroshi Murakami, Toru Tamagawa, Madoka Kawaharada, Hiroya Yamaguchi, Kosuke Sato, Akio Hoshino, Kenichi Kanao, Seiji Yoshida, Mikio Miyaoka, Michael DiPirro, Peter Shirron, Gary Sneiderman, Richard Kelley, F. Scott Porter, Caroline Kilbourne, John Crow, Andrea Mattern, Ali Kashani, Dan McCammon

Proceedings Volume 7732, 77323H (2010) https://doi.org/10.1117/12.856909

KEYWORDS: Cryocoolers, Cooling systems, X-rays, Spectroscopy, Liquids, X-ray astronomy, Sensors, Space operations, Detector arrays, Failure analysis

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Proceedings Article | 24 July 2008 Paper

Paper

Design and fabrication of TES microcalorimeters for x-ray astrophysics in Japan

Yuichiro Ezoe, Tomotaka Yoshino, Kazuma Mukai, Hiroshi Yoshitake, Hiroki Akamatsu, Kumi Ishikawa, Takayuki Takano, Ryutaro Maeda, Yoshitaka Ishisaki, Noriko Yamasaki, Kazuhisa Mitsuda, Takaya Ohashi

Proceedings Volume 7021, 70211X (2008) https://doi.org/10.1117/12.788155

KEYWORDS: Gold, Silicon, X-rays, Etching, Deep reactive ion etching, X-ray astronomy, Semiconducting wafers, Sensors, X-ray technology, Photoresist materials

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Proceedings Article | 15 July 2008 Paper

Paper

Status of the DIOS mission

Y. Tawara, I. Sakurai, A. Furuzawa, T. Ohashi, Y. Ishisaki, Y. Ezoe, A. Hoshino, H. Akamatsu, K. Ishikawa, K. Mitsuda, N. Yamasaki, Y. Takei, K. Shinozaki, K. Masui, T. Yoshino, T. Hagihara, S. Kimura, H. Yoshitake

Proceedings Volume 7011, 70111H (2008) https://doi.org/10.1117/12.788144

KEYWORDS: X-rays, Mirrors, Sensors, X-ray telescopes, Image resolution, Cooling systems, Gold, Silicon, Oxygen, Satellites

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Showing 5 of 36 publications

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