Prof. Ryuichi Fujimoto Profile

Prof. Ryuichi Fujimoto

Professor at Institute of Space and Astronautical Science, JAXA

SPIE Involvement:

Author

Area of Expertise:

x-ray astronomy , x-ray microcalorimeter , cryogenics

Profile Summary

I received my BS, MS, and Ph.D. degrees in physics from the University of Tokyo in 1991, 1993, and 1996, respectively. I devoted myself to the XRS experiments onboard ASTRO-E and ASTRO-E2 (Suzaku), to the SXS experiment onboard ASTRO-H (Hitomi), and to the Resolve instrument onboard the X-ray astronomy recovery mission (XRISM). My current research interests include high-energy astrophysics, high-resolution X-ray spectroscopy, instrumentation, and cryogenics.

Publications (69)

SPIE Journal Paper | 1 March 2023

Ground test results of the microvibration interference for the x-ray microcalorimeter onboard x-ray imaging and spectroscopy mission

Takashi Hasebe, Ryuta Imamura, Masahiro Tsujimoto, Hisamitsu Awaki, Meng Chiao, Ryuichi Fujimoto, Leslie Hartz, Caroline Kilbourne, Gary Sneiderman, Yoh Takei, Susumu Yasuda, the XRISM Resolve team

JATIS, Vol. 9, Issue 01, 014003, (March 2023) https://doi.org/10.1117/12.10.1117/1.JATIS.9.1.014003

KEYWORDS: Space operations, X-rays, Accelerometers, Equipment, X-ray imaging, Cryocoolers, Spectroscopy, Imaging spectroscopy, Vibration, Sensors

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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 Presentation + Paper

Presentation + Paper

Super DIOS for exploring dark baryon

Kosuke Sato, Noriko Yamasaki, Shinya Yamada, Ikuyuki Mitsuishi, Yuto Ichinohe, Hajime Omamiuda, Yuusuke Uchida, Kazuhisa Mitsuda, Daisuke Nagai, Kohji Yoshikawa, Ken Osato, Kyoko Matsushita, Yutaka Fujita, Yoshitaka Ishisaki, Yuichiro Ezoe, Manabu Ishida, Yoshitomo Maeda, Nobuyuki Kawai, Ryuichi Fujimoto, Takeshi Tsuru, Naomi Ota, Yuki Nakashima

Proceedings Volume 12181, 1218123 (2022) https://doi.org/10.1117/12.2629066

KEYWORDS: X-rays, Physics, Graphene, X-ray telescopes, Magnetism, Cooling systems, Spatial resolution, Sensors, Radio optics, Galactic astronomy

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Proceedings Article | 31 August 2022 Poster + Paper

Poster + Paper

Ground test results of the micro-vibration interference for the x-ray microcalorimeter onboard XRISM

Takashi Hasebe, Ryuta Imamura, Masahiro Tsujimoto, Hisamitsu Awaki, Meng Chiao, Ryuichi Fujimoto, Leslie Hartz, Gary Sneiderman, Yoh Takei, Susumu Yasuda

Proceedings Volume 12181, 1218163 (2022) https://doi.org/10.1117/12.2629782

KEYWORDS: Space operations, Sensors, Cryocoolers, X-rays, X-ray imaging, X-ray detectors, Spectroscopy, Magnetic sensors, Imaging spectroscopy, Electronics

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Proceedings Article | 31 August 2022 Poster + Paper

Poster + Paper

Pulse parameters optimization of the modulated x-ray sources for the resolve microcalorimeter spectrometer on XRISM

Makoto Sawada, Renata Cumbee, Cor de Vries, Megan Eckart, Ryuichi Fujimoto, Yoshitaka Ishisaki, Caroline Kilbourne, Shunji Kitamoto, Maurice Leutenegger, Frederick Porter, Yoh Takei, Masahiro Tsujimoto

Proceedings Volume 12181, 1218164 (2022) https://doi.org/10.1117/12.2630133

KEYWORDS: Calibration, Light emitting diodes, Spectroscopy, X-rays, Sensors, Copper, Space operations, Optimization (mathematics)

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Proceedings Article | 29 August 2022 Poster + Paper

Poster + Paper

Results of accelerometer monitor in the ground testing of Resolve x-ray microcalorimeter instrument onboard XRISM

Ryuta Imamura, Masahiro Tsujimoto, Hisamitsu Awaki, Meng Chiao, Ryuichi Fujimoto, Yoshitaka Ishisaki, Richard Kelley, Caroline Kilbourne, Frederick Porter, Makoto Sawada, Gary Sneiderman, Yoh Takei, Shinya Yamada

Proceedings Volume 12191, 121912C (2022) https://doi.org/10.1117/12.2629773

KEYWORDS: Sensors, Cryocoolers, X-rays, X-ray detectors, Sensor performance, Satellites

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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 + Presentation + Paper

Poster + Presentation + Paper

Super DIOS mission for exploring "dark baryon"

Kosuke Sato, Takaya Ohashi, Yoshitaka Ishisaki, Yuichiro Ezoe, Shinya Yamada, Noriko Yamasaki, Kazuhisa Mitsuda, Manabu Ishida, Yoshitomo Maeda, Yuki Nakashima, Ikuyuki Mitsuishi, Yuzuru Tawara, Ryuichi Fujimoto, Takeshi Tsuru, Naomi Ota, Ken Osato, Shinya Nakashima, Yutaka Fujita, Daisuke Nagai, Kohji Yoshikawa, Nobuyuki Kawai, Kyoko Matsushita, Yuto Ichinohe, Yuusuke Uchida

Proceedings Volume 11444, 114445O (2020) https://doi.org/10.1117/12.2561681

KEYWORDS: X-rays, Spatial resolution, Oxygen, Field spectroscopy, Spectroscopy, Gamma radiation

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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 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 | 28 April 2018 Open Access

Open Access

Cryogen-free operation of the Soft X-ray Spectrometer instrument

Gary Sneiderman, Peter Shirron, Ryuichi Fujimoto, Thomas Bialas, Kevin Boyce, Meng Chiao, Michael DiPirro, Megan Eckart, Leslie Hartz, Yoshitaka Ishisaki, Caroline Kilbourne, Candace Masters, Daniel McCammon, Kazuhisa Mitsuda, Hirofumi Noda, Frederick Porter, Andrew Szymkowiak, Yoh Takei, Masahiro Tsujimoto, Seiji Yoshida

JATIS, Vol. 4, Issue 02, 021408, (April 2018) https://doi.org/10.1117/12.10.1117/1.JATIS.4.2.021408

KEYWORDS: Helium, X-rays, Cooling systems, Spectroscopy, Sensors, Liquids, Cryocoolers, Cryogenics, X-ray detectors, Temperature metrology

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SPIE Journal Paper | 13 April 2018 Open Access

Open Access

Ground calibration of the Astro-H (Hitomi) soft x-ray spectrometer

Megan Eckart, Joseph Adams, Kevin Boyce, Gregory Brown, Meng Chiao, Ryuichi Fujimoto, Daniel Haas, Jan-Willem den Herder, Akio Hoshino, Yoshitaka Ishisaki, Caroline Kilbourne, Shunji Kitamoto, Maurice Leutenegger, Daniel McCammon, Kazuhisa Mitsuda, F. Scott Porter, Kosuke Sato, Makoto Sawada, Hiromi Seta, Gary Sneiderman, Andrew Szymkowiak, Yoh Takei, Makoto Tashiro, Masahiro Tsujimoto, Cor de Vries, Tomomi Watanabe, Shinya Yamada, Noriko Yamasaki

JATIS, Vol. 4, Issue 02, 021406, (April 2018) https://doi.org/10.1117/12.10.1117/1.JATIS.4.2.021406

KEYWORDS: Calibration, X-rays, Sensors, Beryllium, Optical filters, Spectroscopy, Iron, Epoxies, Photons, Silicon

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SPIE Journal Paper | 19 March 2018 Open Access

Open Access

In-flight verification of the calibration and performance of the ASTRO-H (Hitomi) Soft X-ray Spectrometer

Maurice A. Leutenegger, Marc Audard, Kevin R. Boyce, Gregory V. Brown, Meng P. Chiao, Megan E. Eckart, Ryuichi Fujimoto, Akihiro Furuzawa, Matteo Guainazzi, Daniel Haas, Takayuki Hayashi, Jan-Willem den Herder, Ryo Iizuka, Manabu Ishida, Yoshitaka Ishisaki, Naomichi Kikuchi, Caroline A. Kilbourne, Shu Koyama, Sho Kurashima, Yoshitomo Maeda, Maxim Markevitch, Dan McCammon, Kazuhisa Mitsuda, Hideyuki Mori, Nozomi Nakaniwa, Takashi Okajima, Stéphane Paltani, Robert Petre, F. Scott Porter, Kosuke Sato, Toshiki Sato, Makoto Sawada, Peter J. Serlemitsos, Hiromi Seta, Gary Sneiderman, Yang Soong, Satoshi Sugita, Andrew Szymkowiak, Yoh Takei, Makoto Tashiro, Yuzuru Tawara, Masahiro Tsujimoto, Cor de Vries, Tomomi Watanabe, Shinya Yamada, Noriko Yamasaki

JATIS, Vol. 4, Issue 02, 021407, (March 2018) https://doi.org/10.1117/12.10.1117/1.JATIS.4.2.021407

KEYWORDS: Calibration, X-rays, Iron, Spectroscopy, Image resolution, Aerospace engineering, Sensors, Beryllium, Physics, X-ray imaging

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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 | 9 March 2018 Open Access

Open Access

Design and on-orbit operation of the soft x-ray spectrometer adiabatic demagnetization refrigerator on the Hitomi observatory

Peter John Shirron, Mark Kimball, Bryan James, Theodore Muench, Edgar Canavan, Michael DiPirro, Thomas Bialas, Gary Sneiderman, Kevin Boyce, Caroline Anne Kilbourne, Frederick Porter, Ryuichi Fujimoto, Yoh Takei, Seiji Yoshida, Kazuhisa Mitsuda

JATIS, Vol. 4, Issue 02, 021403, (March 2018) https://doi.org/10.1117/12.10.1117/1.JATIS.4.2.021403

KEYWORDS: Helium, Sensors, X-rays, Cryocoolers, Liquids, Observatories, Detector arrays, Cryogenics, Spectroscopy, Control systems

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The soft x-ray spectrometer (SXS) instrument that flew on the Astro-H observatory was designed to perform imaging and spectroscopy of x-rays in the energy range of 0.2 to 13 keV with a resolution requirement of 7 eV or better. This was accomplished using a 6 × 6 array of x-ray microcalorimeters cooled to an operating temperature of 50 mK by an adiabatic demagnetization refrigerator (ADR). The ADR consisted of three stages to operate using either a 1.2 K superfluid helium bath or a 4.5 K Joule–Thomson (JT) cryocooler as its heat sink. The design was based on the following operating strategy. After launch, while liquid helium was present (cryogen mode), two of the ADR’s stages would be used to single-shot cool the detectors, using the helium as a heat sink. When the helium was eventually depleted (cryogen-free mode), all three ADR stages would be used to continuously cool the helium tank to about 1.5 K and to single-shot cool the detectors (to 50 mK), using the JT cryocooler as a heat sink. The Astro-H observatory, renamed Hitomi after its successful launch in February 2016, carried ∼36 L of helium into orbit. Based on measurements during ground testing, the average heat load on the helium was projected to be 0.66 mW, giving a lifetime of more than 4 years. On day 5, the helium had cooled to <1.4 K and ADR operation began, successfully cooling the detector array to 50 mK. The ADR’s hold time steadily increased to 48 h as the helium cooled to a temperature of 1.12 K. As the commissioning phase progressed, the ADR was recycled (requiring ∼45 min) periodically, either in preparation for science observations or whenever the 50 mK stage approached the end of its hold time. In total, 18 cycles were completed by the time an attitude control anomaly led to an unrecoverable failure of the satellite on day 38. This paper presents the design, operation, and on-orbit performance of the ADR in cryogen mode as the foreshortened mission did not provide an opportunity to test cryogen-free mode.

SPIE Journal Paper | 26 February 2018 Open Access

Open Access

Design, implementation, and performance of the Astro-H soft x-ray spectrometer aperture assembly and blocking filters

Caroline Kilbourne, Joseph Adams, Petar Arsenovic, Travis Ayers, Meng Chiao, Michael DiPirro, Megan Eckart, Ryuichi Fujimoto, John Kazeva, Kari Kripps, Bruce Lairson, Maurice Leutenegger, Heidi Lopez, Daniel McCammon, Daniel McGuinness, Kazuhisa Mitsuda, Samuel Moseley, F. Scott Porter, Andrea Schweiss, Yoh Takei, Rosemary Thorpe, Tomomi Watanabe, Noriko Yamasaki, Seiji Yoshida

JATIS, Vol. 4, Issue 01, 011215, (February 2018) https://doi.org/10.1117/12.10.1117/1.JATIS.4.1.011215

KEYWORDS: Optical filters, X-rays, Spectroscopy, Silicon, Thin films, Sensors, Interfaces, Contamination, Fermium, Frequency modulation

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SPIE Journal Paper | 20 February 2018 Open Access

Open Access

In-flight performance of the soft x-ray spectrometer detector system on Astro-H

Frederick S. Porter, Kevin R. Boyce, Meng P. Chiao, Megan E. Eckart, Ryuichi Fujimoto, Yoshitaka Ishisaki, Caroline Anne Kilbourne, Maurice A. Leutenegger, Daniel McCammon, Kazuhisa Mitsuda, Kosuke Sato, Hiromi Seta, Makoto Sawada, Gary A. Sneiderman, Andrew E. Szymkowiak, Yoh Takei, Makoto S. Tashiro, Masahiro Tsujimoto, Tomomi Watanabe, Shinya Yamada

JATIS, Vol. 4, Issue 01, 011218, (February 2018) https://doi.org/10.1117/12.10.1117/1.JATIS.4.1.011218

KEYWORDS: Sensors, X-rays, Field effect transistors, Calibration, Space operations, Spectroscopy, X-ray detectors, Staring arrays, Control systems, Helium

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SPIE Journal Paper | 15 February 2018 Open Access

Open Access

Vibration isolation system for cryocoolers of soft x-ray spectrometer on-board ASTRO-H (Hitomi)

Yoh Takei, Susumu Yasuda, Kosei Ishimura, Naoko Iwata, Atsushi Okamoto, Yohichi Sato, Mina Ogawa, Makoto Sawada, Taro Kawano, Shingo Obara, Chikara Natsukari, Atsushi Wada, Shinya Yamada, Ryuichi Fujimoto, Motohide Kokubun, Noriko Yamasaki, Hiroyuki Sugita, Kenji Minesugi, Yasuo Nakamura, Kazuhisa Mitsuda, Tadayuki Takahashi, Seiji Yoshida, Shoji Tsunematsu, Kenichi Kanao, Katsuhiro Narasaki, Kiyomi Otsuka, Frederick Porter, Caroline Kilbourne, Meng Chiao, Megan Eckart, Gary Sneiderman, James Pontius, Dan McCammon, Paul Wilke, John Basile

JATIS, Vol. 4, Issue 01, 011216, (February 2018) https://doi.org/10.1117/12.10.1117/1.JATIS.4.1.011216

KEYWORDS: Sensors, Frequency modulation, Temperature metrology, Cryocoolers, Vibration isolation, X-rays, Space operations, Spectroscopy, Fermium, Head

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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 | 29 August 2017 Presentation + Paper

Presentation + Paper

The evaluation of the Hitomi (Astro-H)/SXS spare beryllium window in 3.8-30 keV

Akio Hoshino, Yuki Yoshida, Shunji Kitamoto, Ryuichi Fujimoto, Noriko Yamasaki, Toshiaki Ina, Tomoya Uruga, Megan Eckart, Maurice Leutenegger

Proceedings Volume 10397, 103970E (2017) https://doi.org/10.1117/12.2272899

KEYWORDS: Beryllium, X-rays, X-ray fluorescence spectroscopy, Space operations, X-ray optics, Calibration, Space telescopes

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Proceedings Article | 29 August 2017 Paper

Paper

Transmission measurement of the spare Beryllium window of the SXS onboard the Hitomi satellite in 2.0-12 keV with KEK-PF

Yuki Yoshida, Akio Hoshino, Shunji Kitamoto, Juri Sugimoto, Ryota Ishii, Yuki Ohgi, Sayaka Sato, Satomi Nukamori, Ryuichi Fujimoto, Noriko Yamasaki, Toshiaki Ina, Tomoya Uruga

Proceedings Volume 10397, 103971D (2017) https://doi.org/10.1117/12.2271942

KEYWORDS: Beryllium, Calibration, Satellites, X-rays, Spectroscopy, Edge detection, Absorption, Crystals

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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 | 26 July 2016 Paper

Paper

Ground calibration of the Astro-H (Hitomi) soft x-ray spectrometer

M. Eckart, J. Adams, K. Boyce, G. Brown, M. Chiao, R. Fujimoto, D. Haas, J. W. den Herder, Y. Ishisaki, R. Kelley, C. Kilbourne, M. Leutenegger, D. McCammon, K. Mitsuda, F. Porter, K. Sato, M. Sawada, H. Seta, G. Sneiderman, A. Szymkowiak, Y. Takei, M. Tashiro, M. Tsujimoto, C. de Vries, T. Watanabe, S. Yamada, N. Yamasaki

Proceedings Volume 9905, 99053W (2016) https://doi.org/10.1117/12.2233053

KEYWORDS: X-rays, Optical filters, Sensors, Silicon, X-rays, Thin films, Interfaces, Fermium, Frequency modulation, Temperature metrology, Contamination

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Proceedings Article | 26 July 2016 Paper

Paper

In-flight verification of the calibration and performance of the ASTRO-H (Hitomi) Soft X-Ray Spectrometer

Maurice Leutenegger, Marc Audard, Kevin Boyce, Gregory Brown, Meng Chiao, Megan Eckart, Ryuichi Fujimoto, Akihiro Furuzawa, Matteo Guainazzi, Daniel Haas, Jan-Willem den Herder, Takayuki Hayashi, Ryo Iizuka, Manabu Ishida, Yoshitaka Ishisaki, Richard Kelley, Naomichi Kikuchi, Caroline Kilbourne, Shu Koyama, Sho Kurashima, Yoshitomo Maeda, Maxim Markevitch, Dan McCammon, Kazuhisa Mitsuda, Hideyuki Mori, Nozomi Nakaniwa, Takashi Okajima, Stéphane Paltani, Robert Petre, F. Scott Porter, Kosuke Sato, Toshiki Sato, Makoto Sawada, Peter Serlemitsos, Hiromi Seta, Gary Sneiderman, Yang Soong, Satoshi Sugita, Andrew Szymkowiak, Yoh Takei, Makoto Tashiro, Yuzuru Tawara, Masahiro Tsujimoto, Cor de Vries, Tomomi Watanabe, Shinya Yamada, Noriko Yamasaki

Proceedings Volume 9905, 99053U (2016) https://doi.org/10.1117/12.2234230

KEYWORDS: X-ray imaging, X-rays, Calibration, Spectroscopy, Sensors, X-ray imaging, Image resolution, Beryllium, X-ray technology, Space telescopes, Manganese

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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 | 19 July 2016 Paper

Paper

In-flight performance of the Soft X-ray Spectrometer detector system on Astro-H

Frederick Porter, Kevin Boyce, Meng Chiao, Megan Eckart, Ryuichi Fujimoto, Yoshitaka Ishisaki, Richard Kelley, Caroline Kilbourne, Maurice Leutenegger, Dan McCammon, Kazuhisa Mitsuda, Kosuke Sato, Hiromi Seta, Makoto Sawada, Gary Sneiderman, Andrew Szymkowiak, Yoh Takei, Makoto Tashiro, Masahiro Tsujimoto, Tomomi Watanabe, Shinya Yamada

Proceedings Volume 9905, 99050W (2016) https://doi.org/10.1117/12.2232799

KEYWORDS: Sensors, X-rays, X-ray detectors, Spectroscopy, Space operations, Cryocoolers, Temperature metrology, Vibration isolation, Fermium, Frequency modulation

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Proceedings Article | 19 July 2016 Paper

Paper

Cryogen-free operation of the Soft X-ray Spectrometer instrument

Gary Sneiderman, Peter Shirron, Ryuichi Fujimoto, Thomas Bialas, Kevin Boyce, Meng Chiao, Michael DiPirro, Megan Eckart, Leslie Hartz, Yoshitaka Ishisaki, Richard Kelley, Caroline Kilbourne, Candace Masters, Dan McCammon, Kazuhisa Mitsuda, Hirofumi Noda, Frederick Porter, Andrew Szymkowiak, Yoh Takei, Masahiro Tsujimoto, Seiji Yoshida

Proceedings Volume 9905, 99053N (2016) https://doi.org/10.1117/12.2232045

KEYWORDS: Sensors, X-rays, Spectroscopy, Gold, Silicon, Phase modulation, Resistance, Particles, Epoxies, Physics

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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 | 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

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

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 | 11 July 2016 Paper

Paper

The design, implementation, and performance of the Astro-H SXS aperture assembly and blocking filters

Caroline Kilbourne, Joseph Adams, Petar Arsenovic, Travis Ayers, Meng Chiao, Michael Dipirro, Megan Eckart, Ryuichi Fujimoto, John Kazeva, Richard Kelley, Kari Kripps, Bruce Lairson, Maurice Leutenegger, Heidi Lopez, Dan McCammon, Daniel McGuinness, Kazuhisa Mitsuda, Samuel Moseley, F. Porter, Andrea Schweiss, Yoh Takei, Rosemary Thorpe, Tomomi Watanabe, Noriko Yamasaki, Seiji Yoshida

Proceedings Volume 9905, 99053Q (2016) https://doi.org/10.1117/12.2232240

KEYWORDS: X-rays, Field effect transistors, Sensors, Resistors, Calibration, Lead, Gold, Helium, Epoxies, Connectors

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Proceedings Article | 11 July 2016 Paper

Paper

Design and on-orbit operation of the adiabatic demagnetization refrigerator on the Hitomi Soft X-ray Spectrometer instrument

Peter Shirron, Mark Kimball, Bryan James, Theodore Muench, Edgar Canavan, Michael DiPirro, Thomas Bialas, Gary Sneiderman, Kevin Boyce, Caroline Kilbourne, Frederick Porter, Richard Kelley, Ryuichi Fujimoto, Yoh Takei, Seiji Yoshida, Kazuhisa Mitsuda

Proceedings Volume 9905, 99053O (2016) https://doi.org/10.1117/12.2231301

KEYWORDS: Helium, X-rays, Sensors, Spectroscopy, Cryocoolers, Liquids, Switches, Observatories, Detector arrays, X-ray telescopes

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Proceedings Article | 11 July 2016 Paper

Paper

Vibration isolation system for cryocoolers of Soft X-ray Spectrometer (SXS) onboard ASTRO-H (Hitomi)

Yoh Takei, Susumu Yasuda, Kosei Ishimura, Naoko Iwata, Atsushi Okamoto, Yoichi Sato, Mina Ogawa, Makoto Sawada, Taro Kawano, Shingo Obara, Chikara Natsukari, Atsushi Wada, Shinya Yamada, Ryuichi Fujimoto, Motohide Kokubun, Noriko Yamasaki, Hiroyuki Sugita, Kenji Minesugi, Yasuo Nakamura, Kazuhisa Mitsuda, Tadayuki Takahashi, Seiji Yoshida, Shoji Tsunematsu, Kenichi Kanao, Katsuhiro Narasaki, Kiyomi Otsuka, Richard Kelley, F. Porter, Caroline Kilbourne, Meng Chiao, Megan Eckart, Gary Sneiderman, James Pontius, Dan McCammon, Paul Wilke, John Basile

Proceedings Volume 9905, 99050X (2016) https://doi.org/10.1117/12.2231832

KEYWORDS: Vibration isolation, Sensors, Cryocoolers, X-rays, Spectroscopy, X-rays, Space operations, Temperature metrology, Fermium, Frequency modulation, Head

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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 | 24 July 2014 Paper

Paper

Performance verification and system integration tests of the pulse shape processor for the soft x-ray spectrometer onboard ASTRO-H

Sawako Takeda, Makoto Tashiro, Yoshitaka Ishisaki, Masahiro Tsujimoto, Hiromi Seta, Yuya Shimoda, Sunao Yamaguchi, Sho Uehara, Yukikatsu Terada, Ryuichi Fujimoto, Kazuhisa Mitsuda

Proceedings Volume 9144, 91445B (2014) https://doi.org/10.1117/12.2055899

KEYWORDS: X-rays, Signal processing, Sensors, Field programmable gate arrays, Digital signal processing, Clocks, Fermium, Frequency modulation, Spectroscopy, Photons

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Proceedings Article | 10 October 2012 Paper

Paper

Development of the onboard digital processing system for the soft x-ray spectrometer of ASTRO-H: performance in the engineering model tests

H. Seta, M. Tashiro, Y. Ishisaki, M. Tsujimoto, Y. Shimoda, S. Takeda, S. Yamaguchi, K. Mitsuda, R. Fujimoto, Y. Takei, R. Kelley, K. Boyce, C. Kilbourne, F. Porter, J. Miko, K. Masukawa, K. Matsuda

Proceedings Volume 8443, 84435D (2012) https://doi.org/10.1117/12.924638

KEYWORDS: X-rays, Digital signal processing, Spectroscopy, Signal processing, Space operations, Performance modeling, Field programmable gate arrays, Electronics, Analog electronics, Satellites

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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

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Proceedings Article | 17 September 2012 Paper

Paper

The x-ray microcalorimeter spectrometer onboard Athena

J. den Herder, D. Bagnali, S. Bandler, M. Barbera, X. Barcons, D. Barret, P. Bastia, M. Bisotti, K. Boyce, C. Cara, M. Ceballos, L. Corcione, B. Cobo, L. Colasanti, J. de Plaa, M. DiPirro, W. Doriese, Y. Ezoe, R. Fujimoto, F. Gatti, L. Gottardi, P. Guttridge, R. den Hartog, I. Hepburn, R. Kelley, K. Irwin, Y. Ishisaki, C. Kilbourne, P. A. de Korte, J. van der Kuur, S. Lotti, C. Macculi, K. Mitsuda, T. Mineo, L. Natalucci, T. Ohashi, M. Page, S. Paltani, E. Perinati, L. Piro, C. Pigot, F. Porter, G. Rauw, L. Ravera, E. Renotte, J.-L. Sauvageot, C. Schmid, S. Sciortino, P. Shirron, Y. Takei, G. Torrioli, M. Tsujimoto, L. Valenziano, D. Willingale, C. de Vries, H. van Weers, J. Wilms, N. Yamasaki

Proceedings Volume 8443, 84432B (2012) https://doi.org/10.1117/12.924269

KEYWORDS: Sensors, X-rays, Spectral resolution, Multiplexing, Electronics, Image resolution, Spectroscopy, Spatial resolution, Photons, Temperature metrology

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Proceedings Article | 9 August 2010 Paper

Paper

The detector subsystem for the SXS instrument on the ASTRO-H Observatory

F. Porter, J. Adams, G. Brown, J. Chervenak, M. Chiao, R. Fujimoto, Y. Ishisaki, R. Kelley, C. Kilbourne, D. McCammon, K. Mitsuda, T. Ohashi, A. Szymkowiak, Y. Takei, M. Tashiro, N. Yamasaki

Proceedings Volume 7732, 77323J (2010) https://doi.org/10.1117/12.857888

KEYWORDS: Sensors, Field effect transistors, Resistors, Detector arrays, X-rays, Lead, Helium, Observatories, X-ray detectors, Spectroscopy

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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

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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 | 29 July 2010 Paper

Paper

The high-resolution x-ray microcalorimeter spectrometer system for the SXS on ASTRO-H

Kazuhisa Mitsuda, Richard Kelley, Kevin Boyce, Gregory Brown, Elisa Costantini, Michael DiPirro, Yuichiro Ezoe, Ryuichi Fujimoto, Keith Gendreau, Jan-Willem den Herder, Akio Hoshino, Yoshitaka Ishisaki, Caroline Kilbourne, Shunji Kitamoto, Dan McCammon, Masahide Murakami, Hiroshi Murakami, Mina Ogawa, Takaya Ohashi, Atsushi Okamoto, Stéphane Paltani, Martin Pohl, F. Scott Porter, Yoichi Sato, Keisuke Shinozaki, Peter Shirron, Gary Sneiderman, Hiroyuki Sugita, Andrew Szymkowiak, Yoh Takei, Toru Tamagawa, Makoto Tashiro, Yukikatsu Terada, Masahiro Tsujimoto, Cor de Vries, Hiroya Yamaguchi, Noriko Yamasaki

Proceedings Volume 7732, 773211 (2010) https://doi.org/10.1117/12.856778

KEYWORDS: X-rays, Sensors, Spectroscopy, X-ray detectors, Analog electronics, Optical filters, Mirrors, X-ray astronomy, Galaxy groups and clusters, Calibration

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Proceedings Article | 29 July 2010 Paper

Paper

The x-ray microcalorimeter spectrometer onboard of IXO

J. W. den Herder, R. Kelley, K. Mitsuda, L. Piro, S. Bandler, P. Bastia, K. Boyce, M. Bruin, J. Chervenak, L. Colasanti, W. B. Doriese, M. DiPirro, M. Eckart, Y. Ezoe, E. Figueroa-Feliciano, L. Ferrari, R. Fujimoto, F. Gatti, K. Gendreau, L. Gottardi, R. den Hartog, G. Hilton, H. Hoevers, K. Irwin, Y. Ishisaki, A. Kashani, C. Kilbourne, P. de Korte, J. van der Kuur, C. Macculi, T. Mineo, J. H. Nieland, T. Ohashi, S. Paltani, E. Perinati, F. Porter, P. Shirron, S. Smith, Y. Takei, M. Tashiro, G. Torrioli, M. Tsujimoto, H. van Weers, N. Yamasaki

Proceedings Volume 7732, 77321H (2010) https://doi.org/10.1117/12.856018

KEYWORDS: Sensors, X-rays, Image resolution, Magnetism, Spectroscopy, Spectral resolution, Multiplexing, Cooling systems, Magnetic sensors, Optical filters

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Proceedings Article | 29 July 2010 Paper

Paper

DIOS: the diffuse intergalactic oxygen surveyor: status and prospects

T. Ohashi, Y. Ishisaki, Y. Ezoe, S. Sasaki, H. Kawahara, K. Mitsuda, N. Yamasaki, Y. Takei, M. Ishida, Y. Tawara, I. Sakurai, A. Furuzawa, Y. Suto, K. Yoshikawa, N. Kawai, R. Fujimoto, T. Tsuru, K. Matsushita, T. Kitayama

Proceedings Volume 7732, 77321S (2010) https://doi.org/10.1117/12.856916

KEYWORDS: X-rays, Satellites, X-ray telescopes, Space operations, Oxygen, Physics, Clouds, Cooling systems, Mirrors, Absorption

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Proceedings Article | 15 July 2008 Paper

Paper

Design of the two-stage series adiabatic demagnetization refrigerator for the NeXT and Spectrum-RG missions

K. Shinozaki, K. Mitsuda, N. Yamasaki, Y. Takei, M. DiPirro, Y. Ezoe, R. Fujimoto, J. W. den Herder, M. Hirabayashi, Y. Ishisaki, K. Kanao, M. Kawaharada, R. Kelley, C. Kilbourne, S. Kitamoto, D. McCammon, T. Mihara, M. Murakami, T. Nakagawa, T. Ohashi, F. S. Porter, Y. Satoh, P. Shirron, H. Sugita, T. Tamagawa, M. Tashiro, S. Yoshida

Proceedings Volume 7011, 70113R (2008) https://doi.org/10.1117/12.788634

KEYWORDS: Magnetism, Switches, X-ray telescopes, X-rays, Liquids, Spectroscopy, Sensors, Potassium, Cooling systems, X-ray astronomy

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Proceedings Article | 15 July 2008 Paper

Paper

The x-ray microcalorimeter on the NeXT mission

Kazuhisa Mitsuda, Noriko Yamasaki, Keisuke Shinozaki, Yoh Takei, Takao Nakagawa, Hiroyuki Sugita, Yohichi Satoh, Ryuichi Fujimoto, Takaya Ohashi, Yoshitaka Ishisaki, Yuichiro Ezoe, Masahide Murakami, Makoto Tashiro, Yukikatsu Terada, Shunji Kitamoto, Toru Tamagawa, Madoka Kawaharada, Tatehiro Mihara, Richard Kelley, Caroline Kilbourne, F. Scott Porter, Peter Shirron, Michael DiPirro, Dan McCammon, Jan-Willem den Herder

Proceedings Volume 7011, 70112K (2008) https://doi.org/10.1117/12.787952

KEYWORDS: X-rays, X-ray telescopes, Analog electronics, Helium, Spectroscopy, Iron, Liquids, Spectroscopes, Cryogenics, Galaxy groups and clusters

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Proceedings Article | 15 July 2008 Paper

Paper

Spectrum-Roentgen-Gamma astrophysical mission

M. Pavlinsky, R. Sunyaev, E. Churazov, M. Gilfanov, A. Vikhlinin, G. Hasinger, P. Predehl, K. Mitsuda, R. Kelley, D. McCammon, T. Ohashi, J. den Herder, B. Ramsey, M. Gubarev, S. O'Dell, R. Fujimoto

Proceedings Volume 7011, 70110H (2008) https://doi.org/10.1117/12.789192

KEYWORDS: X-rays, Galaxy groups and clusters, Mirrors, Galactic astronomy, Spatial resolution, Wind energy, Space telescopes, X-ray telescopes, Telescopes, Observatories

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Proceedings Article | 15 July 2008 Paper

Paper

The NeXT Mission

Tadayuki Takahashi, Richard Kelley, Kazuhisa Mitsuda, Hideyo Kunieda, Robert Petre, Nicholas White, Tadayasu Dotani, Ryuichi Fujimoto, Yasushi Fukazawa, Kiyoshi Hayashida, Manabu Ishida, Yoshitaka Ishisaki, Motohide Kokubun, Kazuo Makishima, Katsuji Koyama, Greg Madejski, Koji Mori, Richard Mushotzky, Kazuhiro Nakazawa, Yasushi Ogasaka, Takaya Ohashi, Masanobu Ozaki, Hiroyasu Tajima, Makoto Tashiro, Yukikatsu Terada, Hiroshi Tsunemi, Takeshi Go Tsuru, Yoshihiro Ueda, Noriko Yamasaki, Shin Watanabe

Proceedings Volume 7011, 70110O (2008) https://doi.org/10.1117/12.789640

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

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Proceedings Article | 15 July 2008 Paper

Paper

The Spektr-RG x-ray calorimeter

J. W. den Herder, R. Kelley, D. McCammon, K. Mitsuda, H. Aarts, C. van Baren, M. Buntov, E. Churazov, E. Costantini, J. Cottam, L. Dubbeldam, Y. Ezoe, P. Friedrichs, R. Fujimoto, M. Gilvanov, Y. Ishisaki, J. Kaastra, C. Kilbourne, K. Kuntz, R. Mushotzky, M. Murakami, T. Nakagawa, T. Ohashi, M. Pavlinsky, R. Petre, F. Scott Porter, P. Predehl, Y. Sato, N. Semena, K. Shinozaki, R. Smith, S. Snowden, R. Sunyaev, H. Sugita, Y. Takei, A. Tkachenko, J. Vink, C. de Vries, N. White, N. Yamasaki, F. Zwart

Proceedings Volume 7011, 70110K (2008) https://doi.org/10.1117/12.786474

KEYWORDS: X-rays, Sensors, Mirrors, Signal to noise ratio, Spectral resolution, Plasmas, Galaxy groups and clusters, Temperature metrology, Ionization, Iron

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Proceedings Article | 15 July 2008 Paper

Paper

An analog baseband feedback circuit for TES signals in frequency domain multiplexing

Noriko Yamasaki, Kazuhisa Mitsuda, Yoh Takei, Kensuke Masui, Toshishige Hagihara, Shunsuke Kimura, Masaki Koshiishi, Ikuyuki Mitsuishi, Keisuke Shinozaki, Akihiro Tsuchiya, Tomotaka Yoshino, Hiroshi Yoshitake, Ryuichi Fujimoto, Yoshitaka Ishisaki

Proceedings Volume 7011, 70113Q (2008) https://doi.org/10.1117/12.788134

KEYWORDS: Analog electronics, Amplifiers, Sensors, Phase shifts, Feedback signals, Multiplexing, Modulation, Magnetism, Switches, Fused deposition modeling

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Proceedings Article | 3 October 2007 Paper

Paper

EDGE: explorer of diffuse emission and gamma-ray burst explosions

J. den Herder, L. Piro, T. Ohashi, L. Amati, J. Atteia, S. Barthelmy, M. Barbera, D. Barret, S. Basso, M. Boer, S. Borgani, O. Boyarskiy, E. Branchini, G. Branduardi-Raymont, M. Briggs, G. Brunetti, C. Budtz-Jorgensenf, D. Burrows, S. Campana, E. Caroli, G. Chincarini, F. Christensen, M. Cocchi, A. Comastri, A. Corsi, V. Cotroneo, P. Conconi, L. Colasanti, G. Cusamano, A. de Rosa, M. Del Santo, S. Ettori, Y. Ezoe, L. Ferrari, M. Feroci, M. Finger, G. Fishman, R. Fujimoto, M. Galeazzi, A. Galli, F. Gatti, N. Gehrels, B. Gendre, G. Ghirlanda, G. Ghisellini, P. Giommi, M. Girardi, L. Guzzo, F. Haardt, I. Hepburn, W. Hermsen, H. Hoevers, A. Holland, J. In't Zand, Y. Ishisaki, H. Kawahara, N. Kawai, J. Kaastra, M. Kippen, P. A. J. de Korte, C. Kouveliotou, A. Kusenko, C. Labanti, R. Lieu, C. Macculi, K. Makishima, G. Matt, P. Mazotta, D. McCammon, M. Méndez, T. Mineo, S. Mitchell, K. Mitsuda, S. Molendi, L. Moscardini, R. Mushotzky, L. Natalucci, F. Nicastro, P. O'Brien, J. Osborne, F. Paerels, M. Page, S. Paltani, G. Pareschi, E. Perinati, C. Perola, T. Ponman, A. Rasmussen, M. Roncarelli, P. Rosati, O. Ruchayskiy, E. Quadrini, I. Sakurai, R. Salvaterra, S. Sasaki, G. Sato, J. Schaye, J. Schmidtt, S. Scioritino, M. Shaposhnikov, K. Shinozaki, D. Spiga, Y. Suto, G. Tagliaferri, T. Takahashi, Y. Takei, Y. Tawara, P. Tozzi, H. Tsunemi, T. Tsuru, P. Ubertini, E. Ursino, M. Viel, J. Vink, N. White, R. Willingale, R. Wijers, K. Yoshikawa, N. Yamasaki

Proceedings Volume 6688, 668805 (2007) https://doi.org/10.1117/12.729457

KEYWORDS: Sensors, Absorption, Spatial resolution, Stars, Mirrors, Gamma radiation, X-rays, Galaxy groups and clusters, Spectral resolution, Metals

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Proceedings Article | 15 June 2006 Paper

Paper

DIOS: the Diffuse Intergalactic Oxygen Surveyor

T. Ohashi, M. Ishida, S. Sasaki, Y. Ishisaki, K. Mitsuda, N. Yamasaki, R. Fujimoto, Y. Takei, Y. Tawara, A. Furuzawa, Y. Suto, Y. Yoshikawa, H. Kawayara, N. Kawai, T. Tsuru, K. Matsushita, T. Kitayama

Proceedings Volume 6266, 62660G (2006) https://doi.org/10.1117/12.671199

KEYWORDS: X-rays, Oxygen, Satellites, X-ray telescopes, Mirrors, Physics, Galaxy groups and clusters, Space operations, Galactic astronomy, Absorption

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Proceedings Article | 29 September 2004 Paper

Paper

Development of a microcalorimeter array for the Diffuse Intergalactic Oxygen Surveyor (DIOS) mission

Yoshitaka Ishisaki, Takaya Ohashi, Tai Oshima, Umeyo Morita, Keisuke Shinozaki, Kosuke Sato, Kazuhisa Mitsuda, Noriko Yamasaki, Ryuichi Fujimoto, Yoh Takei, Hirotaka Sato, Noriyuki Takahashi, Takayuki Homma, Tetsuya Osaka

Proceedings Volume 5501, (2004) https://doi.org/10.1117/12.551398

KEYWORDS: X-rays, Sensors, Oxygen, Amplifiers, Potassium, Superconductors, Satellites, Fused deposition modeling, X-ray telescopes, Multiplexing

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Proceedings Article | 29 September 2004 Paper

Paper

GEANT modeling of the low-earth-orbit cosmic-ray background for the Astro-E2 XRS instrument

Tarek Saab, Ryuichi Fujimoto, Caroline Kilbourne, Richard Kelley

Proceedings Volume 5501, (2004) https://doi.org/10.1117/12.551945

KEYWORDS: Sensors, Silicon, Particles, X-rays, Aluminum, Telescopes, X-ray detectors, Copper, Electrons, Instrument modeling

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Proceedings Article | 29 January 2004 Paper

Paper

The filter wheel system for the x-ray spectrometer onboard Astro-E2

Akira Hayakawa, Chiaki Inoue, Yoshitaka Ishisaki, Manabu Ishida, Takaya Ohashi, Tae Furusho, Noriko Yamasaki, Ryuichi Fujimoto, Kazuhisa Mitsuda, Kazutami Misaki, Yoshitomo Maeda, Hideyo Kunieda

Proceedings Volume 5168, (2004) https://doi.org/10.1117/12.509834

KEYWORDS: X-rays, Beryllium, Optical filtering, Iron, Calibration, Sensors, X-ray astronomy, Calcium, Spectroscopy, Satellites

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Proceedings Article | 11 March 2003 Paper

Paper

Present performance of a single-pixel Ti/Au bilayer TES calorimeter

Yoshitaka Ishisaki, Umeyo Morita, Takeo Koga, Kosuke Sato, Takaya Ohashi, Kazuhisa Mitsuda, Noriko Yamasaki, Ryuichi Fujimoto, Naoko Iyomoto, Tai Oshima, Kazuo Futamoto, Yoh Takei, Taro Ichitsubo, Tamayuki Fujimori, Shuichi Shoji, Hiroyuki Kudo, Tomoaki Nakamura, Takahiro Arakawa, Tetsuya Osaka, Takayuki Homma, Hirotaka Sato, Hideomi Kobayashi, Kentaro Mori, Keiichi Tanaka, Toshimitsu Morooka, Satoshi Nakayama, Kazuo Chinone, Yoshikatsu Kuroda, Mitsunobu Onishi, Kunio Otake

Proceedings Volume 4851, (2003) https://doi.org/10.1117/12.461336

KEYWORDS: X-rays, Resistance, Gold, Titanium, Silicon, Superconductors, X-ray astronomy, Sensors, Resistors, Semiconducting wafers

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Proceedings Article | 11 March 2003 Paper

Paper

Multipixel readout of TES calorimeters

Naoko Iyomoto, Taro Ichitsubo, Tai Oshima, Kazuhisa Mitsuda, Ryuichi Fujimoto, Kazuo Futamoto, Yoh Takei, Tamayuki Fujimori, Toshiyuki Miyazaki, Yoshitaka Ishisaki, Teppei Hiroike, Umeyo Morita, Noriko Yamasaki, Takeo Koga, Kosuke Sato, Takaya Ohashi, Shuichi Shoji, Hiroyuki Kudo, Tomoaki Nakamura, Takahiro Arakawa, Hirotaka Sato, Hideomi Kobayashi, Takayuki Homma, Tetsuya Osaka, Satoshi Nakayama, Toshimitsu Morooka, Kazuo Chinone, Keiichi Tanaka, Yoshikatsu Kuroda, Mitsunobu Onishi, Masaya Goto

Proceedings Volume 4851, (2003) https://doi.org/10.1117/12.461307

KEYWORDS: Bridges, Resistors, X-rays, Demodulation, Signal processing, Superconductors, Electronics, X-ray astronomy, Modulation, Sensors

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Proceedings Article | 20 October 2000 Paper

Paper

Improvements of an x-ray microcalorimeter for detecting cosmic rays

Yuichi Yokoyama, Shuichi Shoji, Kazuhisa Mitsuda, Ryuichi Fujimoto, Toshiyuki Miyazaki, Tohru Oshima, Masahiro Yamazaki, Naoko Iyomoto, Kazuo Futamoto, Yoshinao Ishizaki, Tomohiro Kagei

Proceedings Volume 4230, (2000) https://doi.org/10.1117/12.404915

KEYWORDS: X-rays, Prototyping, Temperature sensors, Tin, X-ray imaging, Temperature metrology, Sensors, Silicon, Capacitance, Gold

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Proceedings Article | 22 October 1999 Paper

Paper

Design and performance of the ASTRO-E/XRS signal processing system

Kevin Boyce, Michael Audley, Robert Baker, Jeffrey Dumonthier, Ryuichi Fujimoto, Keith Gendreau, Yoshitaka Ishisaki, Richard Kelley, Caroline Stahle, Andrew Szymkowiak, George Winkert

Proceedings Volume 3765, (1999) https://doi.org/10.1117/12.366557

KEYWORDS: Signal processing, Sensors, X-rays, Signal detection, Digital signal processing, Analog electronics, X-ray detectors, Optimal filtering, Field effect transistors, Optical filters

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Proceedings Article | 22 October 1999 Paper

Paper

Design and performance of the ASTRO-E/XRS microcalorimeter array and anticoincidence detector

Caroline Kilbourne, Michael Audley, Kevin Boyce, Regis Brekosky, Ryuichi Fujimoto, Keith Gendreau, John Gygax, Yoshitaka Ishisaki, Richard Kelley, R. McClanahan, Tatehiro Mihara, Kazuhisa Mitsuda, Samuel Moseley, David Mott, Frederick Porter, Carl Stahle, Andrew Szymkowiak

Proceedings Volume 3765, (1999) https://doi.org/10.1117/12.366494

KEYWORDS: Sensors, Silicon, X-rays, Resistance, Particles, Field effect transistors, Calibration, Spectroscopy, Photons, Ionization

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Proceedings Article | 22 October 1999 Paper

Paper

ASTRO-E/XRS blocking-filter calibration

Michael Audley, Keith Arnaud, Keith Gendreau, Kevin Boyce, Charles Fleetwood, Richard Kelley, Ritva Keski-Kuha, Frederick Porter, Caroline Stahle, Andrew Szymkowiak, June Tveekrem, Ryuichi Fujimoto, Kazuhisa Mitsuda, Yoshitaka Ishisaki, Tatehiro Mihara

Proceedings Volume 3765, (1999) https://doi.org/10.1117/12.366558

KEYWORDS: Aluminum, Oxygen, Digital filtering, Calibration, Optical filters, X-rays, Neon, Charge-coupled devices, Spectroscopy, Finite element methods

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Proceedings Article | 22 October 1999 Paper

Paper

ASTRO-E high-resolution x-ray spectrometer

Richard Kelley, Michael Audley, Kevin Boyce, Susan Breon, Ryuichi Fujimoto, Keith Gendreau, Stephen Holt, Yoshitaka Ishisaki, Dan McCammon, Tatehiro Mihara, Kazuhisa Mitsuda, Samuel Moseley, David Mott, Frederick Porter, Caroline Stahle, Andrew Szymkowiak

Proceedings Volume 3765, (1999) https://doi.org/10.1117/12.366493

KEYWORDS: X-rays, Sensors, Helium, Neon, Spectroscopy, Silicon, Field effect transistors, Optical filters, Switches, Observatories

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Proceedings Article | 22 October 1999 Paper

Paper

ASTRO-E/XRS calibration program and results

Keith Gendreau, Michael Audley, Keith Arnaud, Kevin Boyce, Ryuichi Fujimoto, Yoshitaka Ishisaki, Richard Kelley, Tatehiro Mihara, Kazuhisa Mitsuda, Frederick Porter, Caroline Stahle, Andrew Szymkowiak

Proceedings Volume 3765, (1999) https://doi.org/10.1117/12.366495

KEYWORDS: Calibration, Sensors, X-rays, Charge-coupled devices, Photons, Spectroscopy, Spectral resolution, Optical filters, X-ray detectors, Data modeling

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Proceedings Article | 8 October 1999 Paper

Paper

Development of a high-energy-resolution x-ray microcalorimeter using Ti/Au TES

Hiroyuki Kudo, Yuichi Yokoyama, Shuichi Shoji, Tohru Oshima, Youichi Aruga, Kana Maegami, Ryuichi Fujimoto, Toshiyuki Miyazaki, Kazuhisa Mitsuda

Proceedings Volume 3893, (1999) https://doi.org/10.1117/12.368431

KEYWORDS: X-rays, Silicon, Prototyping, Gold, Temperature sensors, Temperature metrology, Sensors, X-ray astronomy, Bulk micromachining, Optical lithography

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Showing 5 of 69 publications

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