Prof. Takeshi Go Tsuru Profile

Prof. Takeshi Go Tsuru

at Kyoto Univ

SPIE Involvement:

Conference Program Committee | Author

Publications (61)

Proceedings Article | 1 August 2018

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

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

Proc. SPIE. 10709, High Energy, Optical, and Infrared Detectors for Astronomy VIII

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

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Proceedings Article | 10 July 2018

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

Proc. SPIE. 10699, Space Telescopes and Instrumentation 2018: Ultraviolet to Gamma Ray

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

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Proceedings Article | 10 July 2018

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

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

Proc. SPIE. 10699, Space Telescopes and Instrumentation 2018: Ultraviolet to Gamma Ray

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

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

Proceedings Article | 6 July 2018

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

Proc. SPIE. 10699, Space Telescopes and Instrumentation 2018: Ultraviolet to Gamma Ray

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

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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”.<sup>1</sup> 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

The FORCE mission: science aim and instrument parameter for broadband x-ray imaging spectroscopy with good angular resolution

Kazuhiro Nakazawa, Koji Mori, Takeshi G. Tsuru, Yoshihiro Ueda, Hisamitsu Awaki, Yasushi Fukazawa, Manabu Ishida, Hironori Matsumoto, Hiroshi Murakami, Takashi Okajima, Tadayuki Takahashi, Hiroshi Tsunemi, William Zhang

Proc. SPIE. 10699, Space Telescopes and Instrumentation 2018: Ultraviolet to Gamma Ray

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

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SPIE Journal Paper | 13 March 2018

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

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

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Showing 5 of 61 publications

Conference Committee Involvement (1)

High Energy, Optical, and Infrared Detectors for Astronomy IX

14 June 2020 | Yokohama, Japan

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