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

Read Abstract +

Proceedings Article | 31 August 2022 Presentation + Paper

Presentation + Paper

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

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

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

Read Abstract +

Proceedings Article | 31 August 2022 Presentation + Paper

Presentation + Paper

Super DIOS for exploring dark baryon

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

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

Read Abstract +

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, Susumu Yasuda, Hisamitsu Awaki, Leslie Hartz, Meng Chiao, Gary Sneiderman, Yoh Takei, Ryuichi Fujimoto

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

Read Abstract +

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

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

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)

Read Abstract +

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

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

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

Read Abstract +

Proceedings Article | 13 December 2020 Presentation + Paper

Presentation + Paper

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

Makoto Tashiro, Hironori Maejima, Kenichi Toda, Matteo Guainazzi, Elisa Costantini, Ryuichi Fujimoto, Caroline Kilbourne, Mike Loewenstein, Kiyoshi Hayashida, Joy Henegar-Leon, Matt Holland, Yoshitaka Ishisaki, Koji Mori, 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, Renata Cumbee, Cor de Vries, Yutaka Fujita, Yasushi Fukazawa, 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, Mark Kimball, Takao Kitaguchi, Takayoshi Kohmura, Jon Miller, Kenji Minesugi, Shinji Mitani, Koji Mukai, Hiroshi Murakami, Richard Mushotzky, Hiroshi Nakajima, Hideto Nakamura, Kazuhiro Nakazawa, Chikara Natsukari, Kumiko Nobukawa, Masayoshi Nobukawa, Hirofumi Noda, Atsushi Okamoto, Naomi Ota, Masanobu Ozaki, Stephane Paltani, Paul Plucinsky, Katja Pottschmidt, Michael Sampson, Takahiro Sasaki, Kosuke Sato, Rie Sato, Kazunori Someya, Yang Soong, Keisuke Sugawara, Yasuharu Sugawara, Rob Wolfs, Shinya Yamada, Kazutaka Yamaoka, Noriko Yamasaki, Makoto Yamauchi, Shigeo Yamauchi, Keiichi Yanagase, Tahir Yaqoob, Kyoko Matsushita, Hiroya Yamaguchi, Richard Kelley, Lillian Reichenthal, Leslie Hartz, Robert Petre, Brian Williams, Takashi Okajima, F. Scott Porter, Gary Sneiderman, Yoh Takei, Yukikatsu Terada, Hiroshi Tomida, Lia Corrales, 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, 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, Satoru Katsuda, Steven Kenyon, Shunji Kitamoto, Shogo Kobayashi, Akihide Kobayashi, 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, Ikuyuki Mitsuishi, Misaki Mizumoto, Tsunefumi Mizuno, Kenichiro Nigo, Yusuke Nishioka, Hirokazu Odaka, Mina Ogawa, Takaya Ohashi, Masahiro Ohno, Masayuki Ohta, Toshiki Sato, Makoto Sawada, Hiromi Seta, Yasuko Shibano, Maki Shida, Megumi Shidatsu, Shuhei Shigeto, Keisuke Shinozaki, Peter Shirron, Aurora Simionescu, Randall Smith, Andy Szymkowiak, Hiromitsu Takahashi, Toru Tamagawa, Toshiaki Takeshima, Keisuke Tamura, Takaaki Tanaka, Atsushi Tanimoto, Yuichi Terashima, Yohko Tsuboi, Masahiro Tsujimoto, Hiroshi Tsunemi, Takeshi Tsuru, Hiroyuki Uchida, Hideki Uchiyama, Yoshihiro Ueda, Yuusuke Uchida, Jacco Vink, Shinichiro Uno, Tomomi Watanabe, Michael Witthoeft, 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

Read Abstract +

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

Read Abstract +

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, 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, Kumi Ishikawa

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

Read Abstract +

Proceedings Article | 6 July 2018 Presentation + Paper

Presentation + Paper

Concept of the X-ray Astronomy Recovery Mission

Hironori Maejima, Lorella Angelini, Elisa Costantini, Mark Edison, Jan-Willem den Herder, Yoshitaka Ishisaki, Kyoko Matsushita, Koji Mori, Matteo Guainazzi, Richard Kelley, Kenichi Toda, Lillian Reichenthal, James Lobell, Robert Petre, Ryuichi Fujimoto, Martin Grim, Kiyoshi Hayashida, Stéphane Paltani, Gary Sneiderman, Yoh Takei, Yukikatsu Terada, Hiroshi Tomida, Makoto Tashiro, Hiroki Akamatsu, 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, 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, Yutaka Fujita

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

Read Abstract +

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

Read Abstract +

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

Read Abstract +

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

Read Abstract +

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

Read Abstract +

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

Read Abstract +

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

Read Abstract +

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

Read Abstract +

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

Read Abstract +

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

Read Abstract +

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

Read Abstract +

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

Read Abstract +

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

Read Abstract +

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

Read Abstract +

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

Juri Sugimoto, Ryota Ishii, Satomi Nukamori, Yuki Yoshida, Akio Hoshino, Shunji Kitamoto, Yuki Ohgi, Sayaka Sato, 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

Read Abstract +

Proceedings Article | 17 August 2016 Paper

Paper

The Astro-H high resolution soft x-ray spectrometer

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

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

Read Abstract +

Proceedings Article | 26 July 2016 Paper

Paper

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

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

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

Read Abstract +

Proceedings Article | 26 July 2016 Paper

Paper

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

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

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

Read Abstract +

Proceedings Article | 20 July 2016 Paper

Paper

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

Tadayuki Takahashi, Motohide Kokubun, Kazuhisa Mitsuda, Takaya Ohashi, Richard Kelley, 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

Read Abstract +

Proceedings Article | 19 July 2016 Paper

Paper

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

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

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

Read Abstract +

Proceedings Article | 19 July 2016 Paper

Paper

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

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

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

Read Abstract +

Proceedings Article | 18 July 2016 Paper

Paper

In-orbit operation of the ASTRO-H SXS

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

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

Read Abstract +

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

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

Read Abstract +

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

Read Abstract +

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

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

Read Abstract +

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

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

Read Abstract +

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, Caroline Kilbourne, Frederick Porter, Richard Kelley, Ryuichi Fujimoto, Yoh Takei, Seiji Yoshida, Kazuhisa Mitsuda, Kevin Boyce

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

Read Abstract +

Proceedings Article | 11 July 2016 Paper

Paper

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

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

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

Read Abstract +

Proceedings Article | 24 July 2014 Paper

Paper

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

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

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

Read Abstract +

Proceedings Article | 24 July 2014 Paper

Paper

The ASTRO-H X-ray astronomy satellite

Tadayuki Takahashi, Kazuhisa Mitsuda, Richard Kelley, 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, Maki Shida, Takanobu Shimada, Peter Shirron, Aurora Simionescu, Cynthia Simmons, Randall Smith, Gary Sneiderman, Yang Soong, Masayuki Itoh, 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, 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, Stephanie LaMassa, Candace Masters, Hironori Matsumoto, Kyoko Matsushita, Dan McCammon, Daniel McGuinness, 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, 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, Roger Blandford, Kevin Boyce, Laura Brenneman, Gregory Brown, Ed Cackett, Brian McNamara, Yasuko Shibano, 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, 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, Philippe Laurent, François Lebrun, Maurice Leutenegger, Olivier Limousin, Michael Loewenstein, Knox Long, David Lumb, Grzegorz Madejski, Yoshitomo Maeda, Kazuo Makishima, Maxim Markevitch

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

Read Abstract +

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

Read Abstract +

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

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

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

Read Abstract +

Proceedings Article | 17 September 2012 Paper

Paper

The ASTRO-H X-ray Observatory

Teruaki Enoto, Yuichiro Ezoe, Andrew Fabian, Carlo Ferrigno, Adam Foster, Ryuichi Fujimoto, Yasushi Fukazawa, Stefan Funk, Akihiro Furuzawa, Philippe Laurent, Francois Lebrun, Maurice Leutenegger, Olivier Limousin, Knox Long, Michael Loewenstein, 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, 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, Henri Aarts, Felix Aharonian, Hiroki Akamatsu, Fumie Akimoto, Steve Allen, Naohisa Anabuki, Lorella Angelini, Keith Arnaud, Makoto Asai, Marc Audard, Hisamitsu Awaki, Philipp Azzarello, Aya Bamba, Nobutaka Bando, Mark Bautz, Roger Blandford, Kevin Boyce, Greg Brown, 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, 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, Shigeo Kawasaki, 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, 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, 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, Chris Baluta, Ed Cackett, Nobuyuki Kawai, Dmitry Khangaluyan, Rie Sato, Shiro Ueno, Tadayuki Takahashi, Richard Kelley, Kazuhisa Mitsuda

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

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

Read Abstract +

Proceedings Article | 17 September 2012 Paper

Paper

The x-ray microcalorimeter spectrometer onboard Athena

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

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

Read Abstract +

Proceedings Article | 9 August 2010 Paper

Paper

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

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

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

Read Abstract +

Proceedings Article | 31 July 2010 Paper

Paper

The ASTRO-H Mission

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

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

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

Read Abstract +

Proceedings Article | 30 July 2010 Paper

Paper

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

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

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

Read Abstract +

Proceedings Article | 29 July 2010 Paper

Paper

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

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

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

Read Abstract +

Proceedings Article | 29 July 2010 Paper

Paper

The x-ray microcalorimeter spectrometer onboard of IXO

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

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

Read Abstract +

Proceedings Article | 29 July 2010 Paper

Paper

DIOS: the diffuse intergalactic oxygen surveyor: status and prospects

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

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

Read Abstract +

Proceedings Article | 15 July 2008 Paper

Paper

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

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

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

Read Abstract +

Proceedings Article | 15 July 2008 Paper

Paper

The x-ray microcalorimeter on the NeXT mission

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

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

Read Abstract +

Proceedings Article | 15 July 2008 Paper

Paper

Spectrum-Roentgen-Gamma astrophysical mission

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

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

Read Abstract +

Proceedings Article | 15 July 2008 Paper

Paper

The NeXT Mission

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

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

Read Abstract +

Proceedings Article | 15 July 2008 Paper

Paper

The Spektr-RG x-ray calorimeter

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

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

Read Abstract +

Proceedings Article | 15 July 2008 Paper

Paper

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

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

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

Read Abstract +

Proceedings Article | 3 October 2007 Paper

Paper

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

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

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

Read Abstract +

Proceedings Article | 15 June 2006 Paper

Paper

DIOS: the Diffuse Intergalactic Oxygen Surveyor

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

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

Read Abstract +

Proceedings Article | 29 September 2004 Paper

Paper

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

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

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

Read Abstract +

Proceedings Article | 29 September 2004 Paper

Paper

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

Ryuichi Fujimoto, Richard Kelley, Tarek Saab, Caroline Kilbourne

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

Read Abstract +

Proceedings Article | 29 January 2004 Paper

Paper

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

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

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

Read Abstract +

Proceedings Article | 11 March 2003 Paper

Paper

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

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

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

Read Abstract +

Proceedings Article | 11 March 2003 Paper

Paper

Multipixel readout of TES calorimeters

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

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

Read Abstract +

Proceedings Article | 20 October 2000 Paper

Paper

Improvements of an x-ray microcalorimeter for detecting cosmic rays

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

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

Read Abstract +

Proceedings Article | 22 October 1999 Paper

Paper

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

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

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

Read Abstract +

Proceedings Article | 22 October 1999 Paper

Paper

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

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

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

Read Abstract +

Proceedings Article | 22 October 1999 Paper

Paper

ASTRO-E/XRS blocking-filter calibration

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

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

Read Abstract +

Proceedings Article | 22 October 1999 Paper

Paper

ASTRO-E high-resolution x-ray spectrometer

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

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

Read Abstract +

Proceedings Article | 22 October 1999 Paper

Paper

ASTRO-E/XRS calibration program and results

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

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

Read Abstract +

Proceedings Article | 8 October 1999 Paper

Paper

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

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

Read Abstract +

Showing 5 of 69 publications

SIGN IN TO:

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Advertisement

Advertisement