Prof. Hiroshi Nakajima Profile

Prof. Hiroshi Nakajima

Professor at Kanto Gakuin Univ

SPIE Involvement:

Author

Publications (57)

SPIE Journal Paper | 28 December 2023 Open Access

Open Access

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

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

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

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

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SPIE Journal Paper | 12 September 2023

GEOspace X-ray imager (GEO-X)

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

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

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

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SPIE Journal Paper | 17 May 2023

Multi-image x-ray interferometer module: I. Design concept and proof-of-concept experiments with fine-pitch slits

Kazunori Asakura, Kiyoshi Hayashida, Tomoki Kawabata, Yoneyama Tomokage, Hirofumi Noda, Hironori Matsumoto, Hiroshi Tsunemi, Hiroshi Nakajima, Hisamitsu Awaki, Junko S. Hiraga

JATIS, Vol. 9, Issue 02, 025004, (May 2023) https://doi.org/10.1117/12.10.1117/1.JATIS.9.2.025004

KEYWORDS: Spatial resolution, X-rays, X-ray imaging, Imaging systems, Interferometers, Design and modelling, X-ray detectors, CMOS sensors, Diffraction, X-ray sources

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Proceedings Article | 31 August 2022 Presentation + Paper

Presentation + Paper

GEO-X (GEOspace X-ray imager)

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

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

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

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Proceedings Article | 31 August 2022 Presentation + Paper

Presentation + Paper

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

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

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

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

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Proceedings Article | 31 August 2022 Poster + Paper

Poster + Paper

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

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

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

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

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Proceedings Article | 31 August 2022 Presentation + Paper

Presentation + Paper

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

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

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

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

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Proceedings Article | 31 August 2022 Presentation + Paper

Presentation + Paper

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

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

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

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

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

Proceedings Article | 4 January 2021 Presentation + Paper

Presentation + Paper

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

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

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

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

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Proceedings Article | 30 December 2020 Poster + Paper

Poster + Paper

X-ray photon counting performance of front-illuminated scientific CMOS image sensor

Junko Hiraga, Yasuaki Kamata, Daito Yuhi, Yukino Urabe, Akihiro Yoshida, Hiroshi Nakajima

Proceedings Volume 11454, 1145438 (2020) https://doi.org/10.1117/12.2562976

KEYWORDS: X-rays, X-ray imaging, CMOS sensors, Photon counting, Image resolution, Spectroscopy, Optical imaging, Charge-coupled devices, Imaging spectroscopy, Manufacturing

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Proceedings Article | 18 December 2020 Presentation + Paper

Presentation + Paper

Sub-arcseconds to micro-arcsecond x-ray imaging with multi image x-ray interferometer method (MIXIM): concept and scalabe mission plans

Kiyoshi Hayashida, Kazunori Asakura, Ayami Ishikura, Shotaro Sakuma, Takashi Hanasaka, Tomoki Kawabata, Tomokage Yoneyama, Hirofumi Noda, Koki Okazaki, Maho Hanaoka, Kengo Hattori, Kenmei Sawagami, Wataru Kamogawa, Hiroshi Nakajima, Yusuke Matsuhita, Taisei Mineta, Marina Yoshimoto, Tomohiko Hakamata, Yuichi Ode, Hironori Matsumoto, Hiroshi Tsunemi, Hisamitsu Awaki, Yuichi Terashima, Toshihiro Kawaguchi

Proceedings Volume 11444, 114441C (2020) https://doi.org/10.1117/12.2562193

KEYWORDS: X-ray imaging, X-rays, Interferometers, Diffraction gratings, Sensors, Image resolution, Spatial resolution, Satellites, Astronomy, Visibility

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Proceedings Article | 13 December 2020 Presentation + Paper

Presentation + Paper

Subsub-arcseconds x-ray imaging with multi-image x-ray interferometer module (MIXIM): experimental results

Kazunori Asakura, Kiyoshi Hayashida, Takashi Hanasaka, Tomoki Kawabata, Tomokage Yoneyama, Hirofumi Noda, Shotaro Sakuma, Koki Okazaki, Ayami Ishikura, Maho Hanaoka, Shuntaro Ide, Kengo Hattori, Hironori Matsumoto, Hiroshi Tsunemi, Hisamitsu Awaki, Hiroshi Nakajima, Junko Hiraga

Proceedings Volume 11444, 114441D (2020) https://doi.org/10.1117/12.2560772

KEYWORDS: X-rays, X-ray imaging, X-ray detectors, Interferometers, CMOS sensors, Diffraction gratings, X-ray astronomy, Sensors, Spatial resolution, Astronomy

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Proceedings Article | 13 December 2020 Presentation + Paper

Presentation + Paper

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

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

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

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

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Proceedings Article | 13 December 2020 Paper

Paper

GEO-X (GEOspace x-ray imager)

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

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

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

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Proceedings Article | 13 December 2020 Presentation + Paper

Presentation + Paper

On-ground calibration of XRISM/Xtend CCD

Tomokage Yoneyama, Hirofumi Noda, Maho Hanaoka, Kiyoshi Hayashida, Koki Okazaki, Kazunori Asakura, Yoshiaki Kanemaru, Jin Sato, Toshiyuki Takaki, Koji Mori, Takashi Sako, Masayoshi Nobukawa, Mariko Saito, Kumiko Nobukawa, Hiroshi Murakami, Yuki Amano, Hiroyuki Uchida, Hideki Uchiyama, Hiroshi Tomida, Hiroshi Nakajima, Kengo Hattori, Shotaro Sakuma, Ayami Ishikura, Hironori Matsumoto, Hiromichi Okon, Takaaki Tanaka, Takeshi Tsuru, Yukino Urabe, Junko Hiraga, Akira Kashimura, Shogo Kobayashi, Kouichi Hagino

Proceedings Volume 11444, 1144425 (2020) https://doi.org/10.1117/12.2561524

KEYWORDS: Charge-coupled devices, Calibration, X-rays, X-ray imaging, Fermium, Frequency modulation, X-ray telescopes, X-ray sources, Imaging spectroscopy, Spectroscopes

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Proceedings Article | 13 December 2020 Presentation + Paper

Presentation + Paper

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

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

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

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

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Proceedings Article | 13 December 2020 Presentation + Paper

Presentation + Paper

Planning in-flight calibration for XRISM

Eric Miller, Makoto Sawada, Matteo Guainazzi, Aurora Simionescu, Maxim Markevitch, Liyi Gu, Megan Eckart, Caroline Kilbourne, Maurice Leutenegger, F. Scott Porter, Masahiro Tsujimoto, Cor de Vries, Takashi Okajima, Takayuki Hayashi, Rozenn Boissay-Malaquin, Keisuke Tamura, Hironori Matsumoto, Koji Mori, Hiroshi Nakajima, Takaaki Tanaka, Yukikatsu Terada, Michael Loewenstein, Tahir Yaqoob, Marc Audard, Ehud Behar, Laura Brenneman, Lia Corrales, Renata Cumbee, Teruaki Enoto, Edmund Hodges-Kluck, Yoshitomo Maeda, Paul Plucinsky, Katja Pottschmidt, Makoto Tashiro, Richard Kelley, Robert Petre, Brian Williams, Hiroya Yamaguchi

Proceedings Volume 11444, 1144426 (2020) https://doi.org/10.1117/12.2561608

KEYWORDS: Calibration, Imaging systems, Error analysis, X-rays, Observatories, Spectral resolution, X-ray imaging, Spectroscopy, Aerospace engineering, Space operations

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SPIE Journal Paper | 6 June 2019

X-ray imaging polarimetry with a 2.5-μm pixel CMOS sensor for visible light at room temperature

Kazunori Asakura, Kiyoshi Hayashida, Takashi Hanasaka, Tomoki Kawabata, Tomokage Yoneyama, Koki Okazaki, Shuntaro Ide, Hirofumi Noda, Hironori Matsumoto, Hiroshi Tsunemi, Hisamitsu Awaki, Hiroshi Nakajima

JATIS, Vol. 5, Issue 03, 035002, (June 2019) https://doi.org/10.1117/12.10.1117/1.JATIS.5.3.035002

KEYWORDS: X-rays, Polarimetry, X-ray detectors, Sensors, X-ray imaging, CMOS sensors, Polarization, Visible radiation, X-ray astronomy, Charge-coupled devices

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SPIE Journal Paper | 4 October 2018 Open Access

Open Access

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

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

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

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

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Proceedings Article | 20 July 2018 Presentation + Paper

Presentation + Paper

The spectral response of X-ray CCDs in the energy band around Si-K edge: a solution to the Si-K edge problem for the XIS onboard Suzaku

Koki Okazaki, Kiyoshi Hayashida, Hiroshi Nakajima, Riku Shomura, Tomokage Yoneyama, Hironori Matsumoto, Hiroshi Tsunemi, Koji Mori, Masahiro Tsujimoto, Yoshitomo Maeda, Ken Ebisawa

Proceedings Volume 10709, 107091F (2018) https://doi.org/10.1117/12.2314259

KEYWORDS: X-rays, Calibration, Matrices, Sensors, Charge-coupled devices, X-ray imaging, Quantum efficiency, Cameras, Absorption, X-ray astronomy

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X-ray Imaging Spectrometers (XIS) are the X-ray CCD cameras onboard Suzaku. They were operated in orbit from 2005 to 2015 and produced lots of findings with their good energy resolution and low non X-rat background. Precise calibration including the 10 eV accuracy in the energy scale reinforced them. Nevertheless, there has been a unresolved calibration issue in the spectral response around the Si-K edge (1.839 keV) appearing as systematic residuals up to 10%. The residual is negative peaking at 1.85 keV in the front illuminated (FI) sensors and positive peaking at 1.8 keV in the back illuminated (BI) sensor for X-ray sources dominated by continuum X-ray emission. Various attempts to eliminate these residuals by changing response parameters or quantum efficiency models have been insufficient. In this paper, we revisit this problem by focusing on the relation between incident X-ray energy and pulse height. We introduce a jump in that relation at the Si-K edge by modifying the , and optimize its value so as to minimize the residuals in the fit of the X-ray spectra for the black hole binary LMC X-3, a source dominated by continuum emission. We find the introduction of a jump significantly reduces the residuals. The optimized jump values are +4:2 channel, +4:0 channel, and -3:1 channel, corresponding to 15.3 eV, -11:3 eV, and 14.6 eV, for XIS0, XIS3 (FI), and XIS1 (BI), respectively. The direction of the jump is opposite for the FI and for the BI. We revise the response matrices generator so as to include the jump for each XIS sensor, and apply it to the X-ray spectra of the Perseus cluster of galaxies which has various emission lines in the spectra, and the blazar PKS2155-304 which was observed various epoch in the Suzakuoperation. We confirm the residuals are significantly reduced for these sources, too. We finally suggest the jump at Si-K edge in the energy and pulse height relation is qualitatively explained, if some of charges are lost in course of charger collection to the electrode of the CCD in the depletion later, and its amount is large for larger travel length in the depletion layer. If this explanation is correct, the Si-K edge problem and its solution presented in this paper is not specific only for the SuzakuXIS but also for other X-ray CCDs.

Proceedings Article | 10 July 2018 Presentation + Paper

Presentation + Paper

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

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

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

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

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Proceedings Article | 10 July 2018 Presentation + Paper

Presentation + Paper

Sub-arcsecond imaging with multi-image x-ray interferometer module (MIXIM) for very small satellite

Kiyoshi Hayashida, Tomoki Kawabata, Takashi Hanasaka, Kazunori Asakura, Tomokage Yoneyama, Koki Okazaki, Shuntaro Ide, Hironori Matsumoto, Hiroshi Nakajima, Hisamitsu Awaki, Hiroshi Tsunemi

Proceedings Volume 10699, 106990U (2018) https://doi.org/10.1117/12.2314181

KEYWORDS: X-rays, Sensors, X-ray detectors, X-ray imaging, Interferometers, X-ray sources, CMOS sensors, Satellites, Interferometry, Collimators

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We have proposed a new type of X-ray interferometer called Multi Image X-ray Interferometer Module (MIXIM) consisting simply of a grating and an X-ray spectral imaging detector. The baseline concept of MIXIM is a slit camera to obtain the profile of X-ray sources, but aim to get a sub-arcsecond resolution. For that purpose, to avoid blurring of the image by diffraction is a key, and we select X-ray events of which energy satisfies the interferometric condition called Talbot effect. Stacking the images (X-ray interferometric fringes) with the period of the grating is another point of the method, which provides the self image of a grating slit convolved with the profile of the X-ray source. We started an experiment with a micro focus X-ray source, 4.8 μm pitch grating, and an SOI type X-ray detector XRPIX2b with a pixel size of 30 μm. The stacked self image was obtained with a magnification factor of 4.4. We, however, need finer positional resolution for the detector to obtain the self image to a parallel beam, for which the magnification factor must be 1. We thus focused on small pixel size CMOS sensors developed for visible light. We irradiated X-rays to one of such CMOS sensors GSENSE5130 with a pixel size of 4.25 μm, and found enough capability to detect X-rays, i.e., FWHM of 207 eV at 5.9 keV at room temperature. We then employed this sensor and performed an experiment at a 200 m beam line of BL20B2 in the synchrotron facility SPring8. Using a grating with a pitch of 4.8 µm and an opening fraction of f=0.5, we obtained the self image of the grating at the detector distance from the grating of 23 cm and 46 cm and the X-ray energy of 12.4 keV. We also performed an experiment using a 9.6 μm f = 0.2 grating with a detector-grating distance of 92 cm, and obtained higher contrast image of the grating. Note that the slit width of 2.4 μm at 46 cm corresponds to 1.1′′, while that of 1.9 μm at 92 cm does 0.43′′. We suggest several format of possible MIXIM missions, including MIXIM-S for very small satellite of 50cm size, MIXIM-P for parasite use of nominal X-ray observatory employing grazing X-ray telescopes with a focal length of 10 m, and MIXIM-Z in which the grating-detector distance of 100 m is acquired by formation flight or free fryers to yield 0.01” level resolution.

Proceedings Article | 6 July 2018 Paper

Paper

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

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

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

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

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Proceedings Article | 6 July 2018 Presentation + Paper

Presentation + Paper

Concept of the X-ray Astronomy Recovery Mission

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

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

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

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

Proceedings Article | 6 July 2018 Paper

Paper

Development of focal plane x-ray detector aboard a microsatellite for monitoring supermassive blackholes

Hiroshi Nakajima, Satomi Onishi, Jun-ichi Iwagaki, Junko Hiraga, John Doty, Hirokazu Ikeda, Yuichiro Ezoe, Naoki Isobe, Hironori Sahara

Proceedings Volume 10699, 1069963 (2018) https://doi.org/10.1117/12.2311990

KEYWORDS: Detector development, X-ray detectors, Satellites, Sensors, Charge-coupled devices, X-ray optics, X-rays, CCD image sensors, X-ray imaging, Electronics

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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 | 14 February 2018 Open Access

Open Access

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

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

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

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

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Proceedings Article | 27 July 2016 Paper

Paper

A new type of multiple image x-ray interferometer for arcseconds and sub-arcseconds sources

Kiyoshi Hayashida, Hiroyuki Kurubi, Hiroshi Nakajima, Tomoki Kawabata, Shota Inoue, Hiroshi Tsunemi

Proceedings Volume 9905, 990557 (2016) https://doi.org/10.1117/12.2232182

KEYWORDS: X-ray imaging, X-ray detectors, X-rays, Interferometers, X-ray sources, Spatial resolution, Sensors, Diffraction, Diffraction gratings, Imaging systems

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Proceedings Article | 20 July 2016 Paper

Paper

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

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

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

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

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Proceedings Article | 18 July 2016 Paper

Paper

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

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

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

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

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Proceedings Article | 18 September 2015 Paper

Paper

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

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

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

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

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Proceedings Article | 29 July 2014 Paper

Paper

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

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

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

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

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Proceedings Article | 28 July 2014 Paper

Paper

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

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

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

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

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Proceedings Article | 24 July 2014 Paper

Paper

The ASTRO-H X-ray astronomy satellite

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

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

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

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Proceedings Article | 23 July 2014 Paper

Paper

Performance of front-end mixed-signal ASIC for onboard CCD cameras

Hiroshi Nakajima, Shota Inoue, Ryo Nagino, Naohisa Anabuki, Kiyoshi Hayashida, Hiroshi Tsunemi, John Doty, Hirokazu Ikeda

Proceedings Volume 9154, 91541C (2014) https://doi.org/10.1117/12.2055658

KEYWORDS: Charge-coupled devices, Modulators, CCD cameras, X-rays, Signal processing, Signal to noise ratio, Analog electronics, Imaging spectroscopy, X-ray imaging, Image resolution

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Proceedings Article | 26 September 2013 Paper

Paper

Proton irradiation test to scintillator-directory-coupled CCD onboard FFAST

Ryo Nagino, Hiroshi Nakajima, Masaaki Sadamoto, Masayuki Sasaki, Hiroshi Tsunemi, Kiyoshi Hayashida, Naohisa Anabuki, Hisashi Kitamura, Yukio Uchihori

Proceedings Volume 8859, 88590G (2013) https://doi.org/10.1117/12.2022848

KEYWORDS: Charge-coupled devices, Scintillators, X-rays, Satellites, Hard x-rays, Photons, Sensors, Annealing, Aluminum, Silicon

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Proceedings Article | 26 September 2013 Paper

Paper

Soft x-ray imager onboard ASTRO-H

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

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

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

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Proceedings Article | 17 September 2012 Paper

Paper

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

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

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

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

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Proceedings Article | 17 September 2012 Paper

Paper

The 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 | 14 September 2011 Paper

Paper

Development of the data acquisition system for the x-ray CCD camera (SXI) onboard ASTRO-H

Takahisa Fujinaga, Naohisa Anabuki, Shoichi Aoyama, Hidenori Kawano, Shoma Ikeda, Masachika Iwai, Masanobu Ozaki, Tadayasu Dotani, Chikara Natsukari, Keiko Matsuta, Kazuma Shimizu, Hiroshi Nakajima, Kiyoshi Hayashida, Hiroshi Tsunemi, Shutaro Ueda, Shoji Komatsu, Taku Murayoshi, Koji Mori, Tatsuo Watanabe, Hiroyuki Uchida, Takao Ohnishi, Junko Hiraga

Proceedings Volume 8145, 814503 (2011) https://doi.org/10.1117/12.892881

KEYWORDS: Charge-coupled devices, X-rays, Field programmable gate arrays, Data acquisition, CCD cameras, Electronics, X-ray imaging, Imaging systems, Image processing, Signal processing

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Proceedings Article | 14 September 2011 Paper

Paper

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

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

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

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

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Proceedings Article | 14 September 2011 Paper

Paper

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

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

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

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

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Proceedings Article | 31 July 2010 Paper

Paper

The ASTRO-H Mission

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

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

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

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Proceedings Article | 29 July 2010 Paper

Paper

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

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

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

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

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Proceedings Article | 29 July 2010 Paper

Paper

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

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

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

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

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Proceedings Article | 21 August 2009 Paper

Paper

Performance of an analog ASIC developed for the front-end electronics of the soft x-ray imager onboard ASTRO-H

H. Nakajima, T. Idehara, D. Matsuura, N. Anabuki, H. Tsunemi, J. Doty, H. Ikeda

Proceedings Volume 7435, 743505 (2009) https://doi.org/10.1117/12.825816

KEYWORDS: X-ray imaging, Charge-coupled devices, Analog electronics, Electronics, Modulators, Signal processing, X-ray astronomy, X-rays, Gamma radiation, Interference (communication)

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Proceedings Article | 22 July 2008 Paper

Paper

Development of an ASIC for multi-readout x-ray CCDs

D. Matsuura, H. Nakajima, N. Anabuki, H. Tsunemi, J. Doty, H. Ikeda, H. Katayama

Proceedings Volume 7021, 702112 (2008) https://doi.org/10.1117/12.788618

KEYWORDS: Data modeling, X-rays, Charge-coupled devices, X-ray astronomy, Electronic filtering, Astronomical imaging, Channel projecting optics, X-ray optics, Infrared detectors, Astronomy

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Proceedings Article | 15 July 2008 Paper

Paper

NeXT SXI data processing system

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

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

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

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Proceedings Article | 15 July 2008 Paper

Paper

Development of x-ray CCD camera system with high readout rate using ASIC

H. Nakajima, D. Matsuura, N. Anabuki, E. Miyata, H. Tsunemi, J. Doty, H. Ikeda, H. Katayama

Proceedings Volume 7011, 70112H (2008) https://doi.org/10.1117/12.788257

KEYWORDS: CCD cameras, X-rays, Signal processing, Imaging systems, Standards development, Cameras, Charge-coupled devices, X-ray imaging, Space telescopes, Ultraviolet radiation

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Proceedings Article | 15 July 2008 Paper

Paper

Flight calibration of the Suzaku XIS using the charge injection technique

Midori Ozawa, Hideki Uchiyama, Hiroshi Nakajima, Hideyuki Mori, Hironori Matsumoto, Takeshi Go Tsuru, Katsuji Koyama, Masahiro Uchino, Kiyoshi Hayashida, Hiroshi Tsunemi, Hiroshi Murakami, Tadayasu Dotani, Gregory Prigozhin, Steve Kissel, Eric Miller, Beverly LaMarr, Marshall Bautz

Proceedings Volume 7011, 70112B (2008) https://doi.org/10.1117/12.788258

KEYWORDS: Calibration, X-rays, X-ray imaging, Charge-coupled devices, Space telescopes, Ultraviolet radiation, Gamma radiation, Spectroscopy, Satellite imaging, Satellites

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Proceedings Article | 26 October 2007 Paper

Paper

Mitigating CCD radiation damage with charge injection: first flight results from Suzaku

M. Bautz, B. LaMarr, E. Miller, S. Kissel, G. Prigozhin, B. Burke, J. Gregory, H. Uchiyama, Y. Hyodo, H. Yamaguchi, H. Mori, T. Tsuru, H. Matsumoto, K. Koyama, K. Torii, S. Katsuda, K. Hasuike, H. Nakajima, K. Hayashida, H. Tsunemi, H. Murakami, M. Ozaki, T. Dotani

Proceedings Volume 6686, 66860Q (2007) https://doi.org/10.1117/12.734094

KEYWORDS: Sensors, Spectral resolution, Charge-coupled devices, Bismuth, X-rays, Radiation effects, Back illuminated sensors, X-ray imaging, Particles, Calibration

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Proceedings Article | 13 September 2007 Paper

Paper

The onboard calibration for the spaced-row charge injection of the Suzaku XIS

Hideki Uchiyama, Yoshiaki Hyodo, Hiroya Yamaguchi, Hiroshi Nakajima, Hideyuki Mori, Takeshi Go Tsuru, Hironori Matsumoto, Katsuji Koyama, Ken'ichi Torii, Satoru Katsuda, Kazuto Hasuike, Kiyoshi Hayashida, Hiroshi Tsunemi, Hiroshi Murakami, Tadayasu Dotani, Gregory Prigozhin, Steve Kissel, Eric Miller, Beverly LaMarr, Marshall Bautz

Proceedings Volume 6686, 66860P (2007) https://doi.org/10.1117/12.733689

KEYWORDS: Calibration, Charge-coupled devices, X-rays, Iron, Sensors, Manganese, Bismuth, X-ray imaging, Satellites, Image segmentation

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Proceedings Article | 30 June 2006 Paper

Paper

Performace trends for the x-ray imaging spectrometer on Suzaku

Beverly LaMarr, Mark Bautz, Steve Kissel, Eric Miller, Gregory Prigozhin, Noriaki Tawa, Tomofumi Miyauchi, Hiroshi Nakajima

Proceedings Volume 6270, 62701R (2006) https://doi.org/10.1117/12.671446

KEYWORDS: Charge-coupled devices, Manganese, Calibration, X-ray imaging, Spectroscopy, X-rays, Bismuth, Spectral resolution, CCD image sensors, Sensors

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Proceedings Article | 15 June 2006 Paper

Paper

Energy response of the x-ray imaging spectrometer (XIS) on Suzaku

Hironori Matsumoto, Hiroshi Nakajima, Hiroya Yamaguchi, Takeshi Tsuru, Katsuji Koyama, Kiyoshi Hayashida, Ken'ichi Torii, Masaaki Namiki, Hiroshi Tsunemi, Hiroshi Murakami, Masanobu Ozaki, Tadayasu Dotani, Beverly LaMarr, Steven Kissel, Marshall Bautz

Proceedings Volume 6266, 626641 (2006) https://doi.org/10.1117/12.671033

KEYWORDS: X-rays, Charge-coupled devices, Silicon, Bismuth, Photons, Iron, X-ray imaging, Sensors, Calibration, Spectroscopy

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Proceedings Article | 15 June 2006 Paper

Paper

The background properties of Suzaku/XIS

H. Yamaguchi, H. Nakajima, K. Koyama, T. Tsuru, H. Matsumoto, N. Tawa, H. Tsunemi, K. Hayashida, K. Torii, M. Namiki, H. Katayama, T. Dotani, M. Ozaki, H. Murakami, E. Miller

Proceedings Volume 6266, 626642 (2006) https://doi.org/10.1117/12.672183

KEYWORDS: Charge-coupled devices, X-rays, Bismuth, Calibration, Sensors, Satellites, X-ray imaging, Quantum efficiency, Aluminum, Solids

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Proceedings Article | 11 October 2004 Paper

Paper

Ground calibration of CCD camera (XIS) with front-illuminated chips onboard Astro-E2

Hiroshi Nakajima, Hiroya Yamaguchi, Hironori Matsumoto, Takeshi Tsuru, Katsuji Koyama, Steve Kissel, Beverly LaMarr, Marshall Bautz

Proceedings Volume 5488, (2004) https://doi.org/10.1117/12.550831

KEYWORDS: Sensors, X-rays, Calibration, Charge-coupled devices, Quantum efficiency, Iron, CCD image sensors, Bismuth, CCD cameras, Silicon

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Proceedings Article | 12 December 1997 Paper

Paper

Analysis of combustion flame in a DI diesel engine

Hiroshi Nakajima, Tadakazu Shiozaki, Akira Miyashita, Hitoshi Suzuki

Proceedings Volume 3173, (1997) https://doi.org/10.1117/12.294554

KEYWORDS: Combustion, Nitrous oxide, Temperature metrology, Visualization, Imaging systems, Computing systems, CCD cameras

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