Dr. Hiroki Akamatsu Profile

Dr. Hiroki Akamatsu

at KEK, QUP

SPIE Involvement:

Author

Publications (36)

Proceedings Article | 17 August 2024 Poster

Poster

DESHIMA 2.0: full system evaluation of the ultra-wideband integrated superconducting spectrometer in laboratory

Kenichi Karatsu, Akira Endo, Arend Moerman, Stephen J. Yates, Robert Huiting, Alejandro Pascual Laguna, Shahab Dabironezare, Vignesh Murugesan, David Thoen, Hiroki Akamatsu, Tom J. L. Bakx, Bruno Buijtendorp, Scott Cray, Kazuyuki Fujita, Shaul Hanany, Ryohei Kawabe, Tetsu Kitayama, Kotaro Kohno, Kuniaki Konishi, Louis Marting, Tomotake Matsumura, Shunichi Nakatsubo, Tai Oshima, Matus Rybak, Haruyuki Sakurai, Ryota Takaku, Tatsuya Takekoshi, Yoichi Tamura, Akio Taniguchi, Paul van der Werf, Jochem J. Baselmans

Proceedings Volume PC13102, PC1310214 (2024) https://doi.org/10.1117/12.3019013

Proceedings Article | 17 August 2024 Presentation

Presentation

DESHIMA 2.0 on ASTE: commissioning and science verification of an ultra-wideband integrated superconducting spectrometer

Akira Endo, Kenichi Karatsu, Tatsuya Takekoshi, Yoichi Tamura, Akio Taniguchi, Matus Rybak, Kotaro Kohno, Hiroki Akamatsu, Javier Aguilera, Tom J. L. Bakx, Bruno Buijtendorp, Scott Cray, Shahab Dabironezare, Yasunori Fujii, Kazuyuki Fujita, Masato Hagimoto, Shaul Hanany, Shuji Hotta, Robert Huiting, Takahiro Iino, Chihiro Imamura, Shun Ishii, Kotaro Iwakami, Tetsu Kitayama, Kuniaki Konishi, Ryohei Kawabe, Micah Klettke, Toshihiko Kobiki, Louis Marting, Tomotake Matsumura, Tetsuhiro Minamidani, Arend Moerman, Kana Morokuma, Vignesh Murugesan, Shunichi Nakatsubo, Kazushige Ohtawara, Norika Okauchi, Leon Olde Scholtenhuis, Tai Oshima, Alejandro Pascual Laguna, Haruyuki Sakurai, Fenno Steenvoorde, Ryota Takaku, David Thoen, Akiyoshi Tsujita, Hideki Umehata, Sten Vollebregt, Doreen Wernicke, Paul van der Werf, Stephen J. Yates, Jochem J. Baselmans

Proceedings Volume PC13102, PC131020T (2024) https://doi.org/10.1117/12.3015295

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Proceedings Article | 16 August 2024 Poster + Paper

Poster + Paper

Development of the Low Frequency Telescope focal plane detector arrays for LiteBIRD

Tommaso Ghigna, Aritoki Suzuki, Benjamin Westbrook, Christopher Raum, Hiroki Akamatsu, Shawn Beckman, Nicole Farias, Tijmen de Haan, Nils Halverson, Masashi Hazumi, Johannes Hubmayr, Greg Jaehnig, Adrian Lee, Samantha Stever, Yu Zhou

Proceedings Volume 13102, 131020Y (2024) https://doi.org/10.1117/12.3019287

KEYWORDS: Antennas, Bandpass filters, Telescopes, Bolometers

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Proceedings Article | 31 August 2022 Presentation + Paper

Presentation + Paper

Performance of the SRON Ti/Au transition edge sensor x-ray calorimeters

Martin de Wit, Luciano Gottardi, Kenichiro Nagayoshi, Hiroki Akamatsu, Marcel Bruijn, Marcel Ridder, Emanuele Taralli, Davide Vaccaro, Jian-Rong Gao, Jan-Willem den Herder

Proceedings Volume 12181, 121812B (2022) https://doi.org/10.1117/12.2629368

KEYWORDS: Sensors, Resistance, X-rays, Magnetism, Fused deposition modeling, Temperature metrology, Superconductors, Multiplexing, X-ray imaging, Lead

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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 | 26 August 2022 Presentation

Presentation

DESHIMA 2.0: Laboratory demonstration of the ultra-wideband integrated superconducting spectrometer

Kenichi Karatsu, Akira Endo, Stephen J. Yates, Robert Huiting, Arend Moerman, Alejandro Pascual Laguna, Shahab Dabironezare, Vignesh Murugesan, David Thoen, Hiroki Akamatsu, Tom J. L. Bakx, Juan Bueno, Bruno Buijtendorp, Yasunori Fujii, Kazuyuki Fujita, Sebastian Haehnle, Tsuyoshi Ishida, Shun Ishii, Ryohei Kawabe, Tetsu Kitayama, Kotaro Kohno, Akira Kouchi, Nuria Llombart, Jun Maekawa, Keiichi Matsuda, Shunichi Nakatsubo, Tai Oshima, Matus Rybak, Tatsuya Takekoshi, Yoichi Tamura, Akio Taniguchi, Paul van der Werf, Jochem J. Baselmans

Proceedings Volume PC12190, PC121900C (2022) https://doi.org/10.1117/12.2629339

KEYWORDS: Spectroscopy, Superconductors, Telescopes, Optical testing, Optical cryogenics, Mirrors, Atmospheric optics, Sensors, Phase measurement, Optical filters

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Proceedings Article | 13 December 2020 Presentation

Presentation

Frequency domain multiplexing technology of transition-edge sensors for x-ray astronomy

Hiroki Akamatsu, Davide Vaccaro, Luciano Gottardi, Jan van der Kuur, Cor de Vries, Simon Bandler, Marcel Bruijn, James Chervenak, Matteo D'Andrea, Jian-Rong Gao, Jan-Willem den Herder, Ruud W. Hoogeveen, Mikko Kiviranta, Anton van der Linden, Brian Jackson, Antoine Miniussi, Kenichiro Nagayoshi, Kevin Ravensberg, Marcel Ridder, Kazuhiro Sakai, Stephen Smith, Emanuele Taralli, Sven Visser, Nicholas Wakeham, Martin de Wit

Proceedings Volume 11444, 114440Y (2020) https://doi.org/10.1117/12.2561271

KEYWORDS: Multiplexing, Sensors, Fused deposition modeling, Sensor technology, X-ray astronomy, X-rays, Resonators, Observatories, Quantum efficiency, Spectral resolution

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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

Development of microwave multiplexer for the Super DIOS mission: 38 transition-edge sensor x-ray microcalorimeter readout with microwave multiplexing

Yuki Nakashima, Fuminori Hirayama, Satoshi Kohjiro, Hirotake Yamamori, Shuichi Nagasawa, Akira Sato, Shinya Yamada, Ryota Hayakawa, Noriko Yamasaki, Kazuhisa Mitsuda, Kenichiro Nagayoshi, Hiroki Akamatsu, Luciano Gottardi, Emanuele Taralli, Marcel Bruijn, Marcel Ridder, Jian-Rong Gao, Jan Willem den Herder

Proceedings Volume 11454, 1145412 (2020) https://doi.org/10.1117/12.2560819

KEYWORDS: Microwave radiation, Sensors, Multiplexers, Multiplexing, X-rays, Photons, X-ray detectors, Fused deposition modeling, Physics, Signal detection

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Proceedings Article | 13 December 2020 Poster + Paper

Poster + Paper

Developing x-ray microcalorimeters based on TiAu TES for HUBS

G. Wang, M. Bruijn, K. Nagayoshi, M. Ridder, E. Taralli, L. Gottardi, H. Akamatsu, J. W. den Herder, J.-R. Gao, W. Cui

Proceedings Volume 11444, 114449J (2020) https://doi.org/10.1117/12.2562100

KEYWORDS: X-rays, Spatial resolution, X-ray optics, Metals, Space operations, Spectroscopy, Sensors, Metalloids, Absorption, Resistance

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Proceedings Article | 13 December 2020 Presentation

Presentation

Noise and cross-talk measurements of SAFARI FDM readout

Pourya Khosropanah, Q. Wang, M. D. Audley, J. van der Kuur, S. Ilyas, M .L. Ridder, A. Aminaei, R. Hijmering, A. J. van der Linden, M. P. Bruijn, H. Akamatsu, G. de Lange, J.R. Gao

Proceedings Volume 11453, 114530Y (2020) https://doi.org/10.1117/12.2562663

KEYWORDS: Fused deposition modeling, Sensors, Bolometers, Diffraction gratings, Fourier transforms, Spectroscopy, Space observatories, Optical design, Frequency division multiplexing, Prototyping

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Proceedings Article | 13 December 2020 Poster

Poster

Optimizing normal resistance of an x-ray transition edge sensor for frequency domain multiplexing

Kenichiro Nagayoshi, Martin de Wit, Luciano Gottardi, Marcel Ridder, Sven Visser, Emanuele Taralli, Hiroki Akamatsu, Marcel Bruijn, Jian-Rong Gao, Ruud W. Hoogeveen, Jan-Willem den Herder

Proceedings Volume 11444, 114444C (2020) https://doi.org/10.1117/12.2562782

KEYWORDS: X-rays, Sensors, Space observatories, Superconductors, X-ray imaging, Spectral resolution, Fused deposition modeling, Resistance, Space telescopes, Spectroscopy

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Athena is an ESA-led space telescope to be launched in the early 2030s. The X-ray Integral Field Unit (X-IFU) on board of the Athena mission is an X-ray imaging spectrometer, sensitive to 0.2-12 keV X-rays. The main sensor of the X-IFU is an array of ~3200 closely-packed superconducting transition-edge sensor (TES) microcalorimeters with X-ray absorbers. The X-IFU provides a breakthrough spectral resolution of 2.5 eV (full width at half maximum; FWHM) at 6 keV, which enables us to access unrevealed properties of the hot gases that are formed at every level of the hierarchical structure of the universe. At SRON, we are developing Frequency Division Multiplexing (FDM) readout with SQUID amplifiers as a baseline technology for the X-IFU. In the FDM system, the microcalorimeter pixels are AC-biased at different frequencies from 1 to 5 MHz. Therefore, it is crucial to minimize frequency-dependent phenomena because it causes non-linearity effects in the detector response and degrades the spectral resolution. Theoretical analyses have shown that this non-linearity is caused by weak-link behavior, induced by superconducting leads and can be mitigated by increasing the normal resistance of the TES. We are also developing TES arrays based on a superconducting Ti/Au bi-layer with an Au absorber as a sensor backup technology for the X-IFU. We have recently fabricated TES calorimeters with large variation of normal resistance from 25 to 150 mΩ by changing the width and aspect ratio of the bi-layer. The TESes with 117 and 150 mΩ have shown a promising spectral performance of below 2 eV (FWHM) at 6 keV. However, we still see that the detector response is affected by the weak-link behavior, especially at high frequency regime. In this paper, we briefly summarize our results with a focus on the spectral performance and the detector responsivity for each TES design. We also present our recent works on fabrication related to a superconducting wiring process, which would be useful for further reduction of the weak-link effects.

Proceedings Article | 10 July 2018 Presentation

Presentation

The focal plane assembly for the ATHENA x-ray integral field unit instrument (Conference Presentation)

Brian Jackson, Roland den Hartog, Jan van der Kuur, Henk van Weers, Hiroki Akamatsu, Andrea Argan, Simon Bandler, Marco Barbera, Didier Barret, Marcel Bruijn, James Chervenak, Johannes Dercksen, Flavio Gatti, Herve Geoffray, Luciano Gottardi, Jan-Willem den Herder, Ruud Hoogeveen, Caroline Kilbourne, Mikko Kiviranta, Bert-Joost van Leeuwen, Dennis van Loon, Claudio Macculi, Jean-Michel Mesnager, Phillipe Peille, Luigi Piro, Stephen Smith, Francoise Douchin

Proceedings Volume 10699, 106991O (2018) https://doi.org/10.1117/12.2313980

KEYWORDS: Sensors, X-rays, Staring arrays, X-ray imaging, Environmental sensing, Observatories, Spectral resolution, Superconductors, Electronics, Particles

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Proceedings Article | 10 July 2018 Presentation

Presentation

Development of frequency domain multiplexing for the x-ray Integral Field Unit (X-IFU) (Conference Presentation)

Hiroki Akamatsu, L. Gottardi, J. van der Kuur, C.P. de Vries, M. Bruijn, J. Chervenak, M. Kiviranta, A. van den Linden, B. Jackson, A. Miniussi, K. Sakai, S. Smith, N. Wakeham

Proceedings Volume 10699, 106991N (2018) https://doi.org/10.1117/12.2313284

KEYWORDS: Fused deposition modeling, Multiplexing, X-rays, Sensors, Resonators, Performance modeling, Observatories, Quantum efficiency, Spectral resolution, Electronics

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Proceedings Article | 10 July 2018 Presentation

Presentation

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

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

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

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

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Proceedings Article | 10 July 2018 Presentation

Presentation

Transition-edge sensor array development for the ATHENA x-ray itegral field unit (Conference Presentation)

Stephen Smith, Joesph Adams, Simon Bandler, James Chervenak, Megan Eckart, Fred Finkbeiner, Richard Kelley, Caroline Kilbourne, Antoine Miniussi, F. Scott Porter, John Sadleir, Kazuhiro Sakai, Nicholas Wakeham, Edward Wassell, Wonsik Yoon, Hiroki Akamatsu, Luciano Gottardi, Roland den Hartog, Brian Jackson, Jan van der Kuur

Proceedings Volume 10699, 106991L (2018) https://doi.org/10.1117/12.2313428

KEYWORDS: X-rays, Sensors, Transition metals, Observatories, Spectral resolution, Multiplexing, Fused deposition modeling, Telescopes, Metals

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The X-ray integral field unit (X-IFU) proposed for ESA’s Athena X-ray observatory will consist of 3840 transition edge sensor (TES) microcalorimeters optimized for the energy range of 0.2 to 12 keV. The instrument will provide unprecedented spectral resolution of ~ 2.5 eV at energies of up to 7 keV and will accommodate photon fluxes of 10’s mcrab (1000’s cps). Over the past two years the baseline configuration has evolved from the original proposal. The current baseline consists of a uniform large pixel array (LPA) of 5” pixels, AC-biased within their superconducting-to-normal transition and read out using frequency domain multiplexing (FDM). The baseline pixel design is approximately a factor of two times slower than in the original concept. High count-rate accommodation, needed for bright point source observations, is now achieved by defocusing the telescope optic to spread the photons over a larger number of pixels. In this paper we report on Mo/Au TES designs that are being optimized to meet the baseline pixel parameters and performance goals. This includes detailed studies on the optimization of the thermal heat sink and the impact of different TES geometries (including TES size and normal metal feature geometries) on the DC-biased transition shape. We discuss how these geometric effects ultimately impact important performance metrics such as energy resolution, decay time, slew-rate and array scale uniformity. Our Mo/Au TESs have historically been designed and optimized for DC-biased operation, however, the primary readout technology uses an AC drive to bias the TES. Depending upon the drive frequency, the AC bias affects the TES transition shape in two ways. Firstly, due to losses from the bias current coupling to metallic components in close proximity to the TES and secondly introducing fine structure in the transition due to Josephson effects. We present latest pixel design optimizations targeted at mitigating these frequency dependent effects in order to achieve commensurate performance with that obtained in the DC case.

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 TiAu TES x-ray calorimeters for the X-IFU on ATHENA space observatory

P. Khosropanah, E. Taralli, L. Gottardi, C. P. de Vries, K. Nagayoshi, M. L. Ridder, H. Akamatsu, M. P. Bruijn, J.-R. Gao

Proceedings Volume 10699, 106991M (2018) https://doi.org/10.1117/12.2313439

KEYWORDS: Tellurium, X-rays, Gold, Magnetism, Sensors, Fused deposition modeling, Resistance, Bismuth, Measurement devices, Space observatories

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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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Proceedings Article | 17 August 2016 Paper

Paper

The Astro-H high resolution soft x-ray spectrometer

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

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

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

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Proceedings Article | 20 July 2016 Paper

Paper

Transition-edge sensor pixel parameter design of the microcalorimeter array for the x-ray integral field unit on Athena

S. Smith, J. Adams, S. Bandler, G. Betancourt-Martinez, J. Chervenak, M. Chiao, M. Eckart, F. Finkbeiner, R. Kelley, C. Kilbourne, A. Miniussi, F. Porter, J. Sadleir, K. Sakai, N. Wakeham, E. Wassell, W. Yoon, D. Bennett, W. Doriese, J. Fowler, G. Hilton, K. Morgan, C. Pappas, C. Reintsema, D. Swetz, J. Ullom, K. Irwin, H. Akamatsu, L. Gottardi, R. den Hartog, B. Jackson, J. van der Kuur, D. Barret, P. Peille

Proceedings Volume 9905, 99052H (2016) https://doi.org/10.1117/12.2231749

KEYWORDS: X-rays, Sensors, Multiplexing, Sensors, Staring arrays, Cryogenics, Helium, Magnetism, Photons, Temperature metrology, Resistance

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Proceedings Article | 20 July 2016 Paper

Paper

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

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

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

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

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Proceedings Article | 19 July 2016 Paper

Paper

Development of frequency domain multiplexing for the X-ray Integral Field unit (X-IFU) on the Athena

Hiroki Akamatsu, Luciano Gottardi, Jan van der Kuur, Cor de Vries, Kevin Ravensberg, Joseph Adams, Simon Bandler, Marcel Bruijn, James Chervenak, Caroline Kilbourne, Mikko Kiviranta, A. J. van der Linden, Brian Jackson, Stephen Smith

Proceedings Volume 9905, 99055S (2016) https://doi.org/10.1117/12.2232805

KEYWORDS: X-rays, Sensors, Particles, Electrons, Photons, Monte Carlo methods, Solar energy, Magnetism, Bismuth, Mirrors

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Proceedings Article | 19 July 2016 Paper

Paper

Optimising the multiplex factor of the frequency domain multiplexed readout of the TES-based microcalorimeter imaging array for the X-IFU instrument on the Athena x-ray observatory

J. van der Kuur, L. G. Gottardi, H. Akamatsu, B. J. van Leeuwen, R. den Hartog, D. Haas, M. Kiviranta, B. J. Jackson

Proceedings Volume 9905, 99055R (2016) https://doi.org/10.1117/12.2232830

KEYWORDS: X-ray imaging, X-rays, Sensors, X-rays, Aluminum, Oxides, Optical filters, Photons, Infrared sensors, Ultraviolet radiation, Thermography

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Proceedings Article | 19 July 2016 Paper

Paper

The focal plane assembly for the Athena X-ray Integral Field Unit instrument

B. Jackson, H. van Weers, J. van der Kuur, R. den Hartog, H. Akamatsu, A. Argan, S. Bandler, M. Barbera, D. Barret, M. Bruijn, J. Chervenak, J. Dercksen, F. Gatti, L. Gottardi, D. Haas, J.-W. den Herder, C. Kilbourne, M. Kiviranta, T. Lam-Trong, B.-J. van Leeuwen, C. Macculi, L. Piro, S. Smith

Proceedings Volume 9905, 99052I (2016) https://doi.org/10.1117/12.2232544

KEYWORDS: Staring arrays, Sensors, Electronics, X-rays, Sensors, Amplifiers, Magnetic sensors, Magnetism, Multiplexing, Particles, Superconductors

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Proceedings Article | 19 July 2016 Paper

Paper

Ultra-low noise TES bolometer arrays for SAFARI instrument on SPICA

P. Khosropanah, T. Suzuki, M. Ridder, R. Hijmering, H. Akamatsu, L. Gottardi, J. van der Kuur, J. Gao, B. Jackson

Proceedings Volume 9914, 99140B (2016) https://doi.org/10.1117/12.2233472

KEYWORDS: Sensors, Infrared telescopes, Bolometers, Copper, Phonons, Tantalum, Niobium, Superconductors, Scanning electron microscopy, Spectroscopy

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Proceedings Article | 18 July 2016 Paper

Paper

In-orbit operation of the ASTRO-H SXS

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

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

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

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Proceedings Article | 18 July 2016 Paper

Paper

Microcalorimeter pulse analysis by means of principle component decomposition

C. de Vries, R. Schouten, J. van der Kuur, L. Gottardi, H. Akamatsu

Proceedings Volume 9905, 99055V (2016) https://doi.org/10.1117/12.2231627

KEYWORDS: X-rays, Photons, Principal component analysis, Sensors, Optimal filtering, Multiplexing, Fused deposition modeling, Device simulation, Analytical research, Interference (communication)

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Proceedings Article | 25 July 2014 Paper

Paper

Development of TES-based detectors array for the X-ray Integral Field Unit (X-IFU) on the future x-ray observatory ATHENA

L. Gottardi, H. Akamatsu, D. Barret, M. Bruijn, R. den Hartog, J. den Herder, H. Hoevers, M. Kiviranta, J. van der Kuur, A. J. van der Linden, B. Jackson, M. Jambunathan, M. Ridder

Proceedings Volume 9144, 91442M (2014) https://doi.org/10.1117/12.2056920

KEYWORDS: X-rays, Fused deposition modeling, X-ray detectors, Copper, Sensors, Detector arrays, Observatories, Image resolution, Bismuth, Magnetism

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Proceedings Article | 24 July 2014 Paper

Paper

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

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

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

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

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Proceedings Article | 24 July 2014 Paper

Paper

The X-ray Integral Field Unit (X-IFU) for Athena

Laurent Ravera, Didier Barret, Jan Willem den Herder, Luigi Piro, Rodolphe Clédassou, Etienne Pointecouteau, Philippe Peille, Francois Pajot, Monique Arnaud, Claude Pigot, Lionel Duband, Christophe Cara, Roland den Hartog, Luciano Gottardi, Hiroki Akamatsu, Jan van der Kuur, Henk van Weers, Jelle de Plaa, Claudia Macculi, Simone Lotti, Guido Torrioli, Flavio Gatti, Luca Valenziano, Marco Barbera, Xavier Barcons, María Teresa Ceballos, Lourdes Fàbrega, José Miguel Mas-Hesse, Mathew Page, Phillip Guttridge, Richard Willingale, Stéphane Paltani, Ludovic Genolet, Enrico Bozzo, Gregor Rauw, Etienne Renotte, Jörn Wilms, Christian Schmid

Proceedings Volume 9144, 91442L (2014) https://doi.org/10.1117/12.2055884

KEYWORDS: Sensors, X-rays, Electronics, Particles, Electroluminescent displays, Spectral resolution, Image resolution, X-ray detectors, Photons, Digital electronics

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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 | 25 September 2012 Paper

Paper

A multiplexer for the AC/DC characterization of TES-based bolometers and microcalorimeters

L. Gottardi, H. Akamatsu, M. Bruijn, J.R. Gao, R. den Hartog, R. Hijmering, H. Hoevers, P. Khosropanah, J. van der Kuur, T. van der Linden, M. Lindeman, M. Ridder

Proceedings Volume 8453, 845333 (2012) https://doi.org/10.1117/12.925506

KEYWORDS: Bolometers, Magnetism, Fused deposition modeling, X-rays, Multiplexers, Niobium, Temperature metrology, Amplifiers, Resonators, Superconductors

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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 | 24 July 2008 Paper

Paper

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

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

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

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

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Proceedings Article | 15 July 2008 Paper

Paper

Status of the DIOS mission

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

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

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

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Showing 5 of 36 publications

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