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32 results on '"Hiroyuki Sugita"'

2. Thermal Property Measurements of Al-Alloy for Space Cryogenic Missions

Author

Keisuke Shinozaki, Tadahito Mizutani, Takenori Fujii, Takashi Onaka, Takao Nakagawa, and Hiroyuki Sugita

Abstract

In space cryogenic missions, the thermophysical properties of materials must be studied and measured to establish a highly reliable cooling chain. An Al-alloy is a primary material in cryogenic thermal structural designs and is particularly used for providing high thermal conductance of thermal shields and thermal straps. We measured low-temperature properties (the thermal conductivity and the electrical resistivity) of several Al-alloys and found that A6063 had a lower thermal conductivity than that reported previously. We also found that the Al-alloy ST-60, which has equivalent thermal conductivity as pure aluminum, has higher thermal conductivity than A6061 and A6063, and the material is a good candidate for the space cryogenic design at the temperature range between 4K and 300K. These results are critical for the thermal study of upcoming next-generation space astronomy missions, such as LiteBIRD, SPICA and ATHENA.

Published
2022
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3. Mechanical cooler system for the infrared space mission SPICA

Author

Seiji Yoshida, Hiroyuki Sugita, Keisuke Shinozaki, Takao Nakagawa, Kenichiro Sawada, C. Tokoku, Yoichi Sato, Hiroyuki Ogawa, Shoji Tsunematsu, Hiroshi Shibai, Kenichi Kanao, Masaru Saijo, Hideo Matsuhara, Katsuhiro Narasaki, Akinobu Okabayashi, and Tadahito Mizutani

Subjects
Physics, Stirling engine, business.industry, Infrared telescope, Joule–Thomson effect, Astrophysics::Instrumentation and Methods for Astrophysics, Lagrangian point, Spica, Radiant cooling, law.invention, Telescope, symbols.namesake, law, symbols, Water cooling, Astrophysics::Solar and Stellar Astrophysics, Astrophysics::Earth and Planetary Astrophysics, Aerospace engineering, business, Astrophysics::Galaxy Astrophysics
Abstract

The Space Infrared Telescope for Cosmology and Astrophysics (SPICA) mission is to be launched into orbit around the second Lagrangian point (L2) in the Sun-Earth system. Taking advantage of the thermal environment in L2, a 2.5m-class large IR telescope is cooled below 8K in combination with effective radiant cooling and a mechanical cooling system. SPICA adopts a cryogen-free system to prevent the mission operation lifetime being limited by the amount of cryogen as a refrigerant. Currently, the mechanical cooler system with the feasible solution giving a proper margin is proposed. As a baseline design, 4K / 1K-class Joule-Thomson coolers are used to cool the telescope and thermal interface for Focal Plane Instruments (FPIs). Additionally, two sets of double stage stirling coolers (2STs) are used to cool the telescope shield. In this design, nominal operation of FPIs can be kept when one mechanical cooler is in failure. In this paper, current baseline configuration of the mechanical cooler system and current status of mechanical coolers developments which need to satisfy the specific requirements of SPICA cryogenic system are presented.

Published
2020
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4. Cryogenic system of the infrared space mission SPICA

Author

Hiroyuki Ogawa, Shinsuke Takeuchi, Yoichi Sato, Jun Matsumoto, Hideki Uchida, Tadahito Mizutani, Hiroyuki Sugita, T. Tirolien, Hidehiro Kaneda, Ken Goto, Masaru Saijo, Keisuke Shinozaki, Kenichiro Sawada, Chihiro Tokoku, Hiroshi Shibai, Hideo Matsuhara, and Takao Nakagawa

Subjects
Physics, Radiative cooling, business.industry, Astrophysics::Instrumentation and Methods for Astrophysics, Shields, Cryogenics, Spica, Cryocooler, law.invention, Telescope, Observatory, law, Radiative transfer, Astrophysics::Earth and Planetary Astrophysics, Aerospace engineering, business, Astrophysics::Galaxy Astrophysics
Abstract

We present an overview of the cryogenic system of the next-generation infrared observatory mission SPICA. One of the most critical requirements for the SPICA mission is to cool the whole science equipment, including the 2.5 m telescope, to below 8 K to reduce the thermal background and enable unprecedented sensitivity in the mid- and far-infrared region. Another requirement is to cool focal plane instruments to achieve superior sensitivity. We adopt the combination of effective radiative cooling and mechanical cryocoolers to accomplish the thermal requirements for SPICA. The radiative cooling system, which consists of a series of radiative shields, is designed to accommodate the telescope in the vertical configuration. We present thermal model analysis results that comply with the requirements to cool the telescope and focal plane instruments.

Published
2020
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5. Vibration isolation system for cryocoolers of soft x-ray spectrometer on-board ASTRO-H (Hitomi)

Author

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

Subjects
Materials science, Physics::Instrumentation and Detectors, microcalorimeter, 01 natural sciences, 010309 optics, soft x-ray spectrometer, 0103 physical sciences, microvibration, cryocooler, Aerospace engineering, 010306 general physics, Instrumentation, Soft x ray, Spectrometer, Spacecraft, business.industry, Mechanical Engineering, Detector, Astrophysics::Instrumentation and Methods for Astrophysics, Astronomy and Astrophysics, Cryocooler, vibration isolation, Electronic, Optical and Magnetic Materials, Vibration, Vibration isolation, Hitomi, Space and Planetary Science, Control and Systems Engineering, business, Frequency modulation
Abstract

著者人数: 35名, 形態: カラー図版あり, Number of authors: 35, Physical characteristics: Original contains color illustrations, Accepted: 2018-01-22, 資料番号: PA1810022000

Published
2018

6. Outgas analysis of mechanical cryocoolers for long lifetime

Author

Keisuke Shinozaki, Seiji Yoshida, Kenichi Kanao, Hiroyuki Sugita, Katsuhiro Narasaki, Shoji Tsunematsu, Kiyomi Otsuka, Noriko Y. Yamasaki, Kenichiro Sawada, Takao Nakagawa, Kazuhisa Mitsuda, and Yoichi Sato

Subjects
Stirling cooler, Materials science, Stirling engine, Liquid helium, Nuclear engineering, Outgas reduction, Joule–Thomson effect, General Physics and Astronomy, Cryocooler, 01 natural sciences, Long lifetime, law.invention, 010309 optics, symbols.namesake, Outgassing, Piston, law, 0103 physical sciences, Heat exchanger, Regenerative heat exchanger, symbols, Joule Thomson cooler, General Materials Science, 010306 general physics
Abstract

著者人数: 12名, Accepted: 2017-10-01, 資料番号: SA1170240000

Published
2017
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7. On-orbit Demonstration of Oscillating Heat Pipe with Check Valves for Space Application

Author

Masakatsu Maeda, Makiko Ando, Takurou Daimaru, Atsushi Okamoto, Kosuke Tanaka, Hiroki Nagai, and Hiroyuki Sugita

Subjects
Engineering, business.product_category, Check valve, Spacecraft, Computer simulation, business.industry, 020209 energy, Energy Engineering and Power Technology, Mechanical engineering, 02 engineering and technology, Mechanics, Space (mathematics), Industrial and Manufacturing Engineering, On-orbit experiment, Heat pipe, Flat-plate Heat Pipe (FHP), Oscillating Heat Pipe (OHP), Heat transfer, 0202 electrical engineering, electronic engineering, information engineering, Orbit (dynamics), Micro-loop heat pipe, business, SDS-4
Abstract

形態: カラー図版あり, Physical characteristics: Original contains color illustrations, Accepted: 2017-11-05, 資料番号: PA1810073000

Published
2017

8. Comparison between numerical simulation and on-orbit experiment of oscillating heat pipes

Author

Kosuke Tanaka, Atsushi Okamoto, Hiroki Nagai, Makiko Ando, Takurou Daimaru, and Hiroyuki Sugita

Subjects
Fluid Flow and Transfer Processes, Physics, Computer simulation, 020209 energy, Mechanical Engineering, Experimental data, 02 engineering and technology, Mechanics, Condensed Matter Physics, Heat pipe, 020401 chemical engineering, 0202 electrical engineering, electronic engineering, information engineering, Orbit (dynamics), Astrophysics::Earth and Planetary Astrophysics, 0204 chemical engineering
Abstract

This study investigated the startup behavior of Oscillating Heat Pipes (OHPs) by comparing numerical simulation and on-orbit experimental data. Previous studies suggested that initial vapor-liquid distribution affects startup behavior. However, they provided no experimental evidence to validate this hypothesis because experimentally reproducing and specifying initial vapor-liquid distribution in OHPs is virtually impossible. Thus, a numerical approach is necessary to generate the initial vapor-liquid distribution and to understand the internal thermofluid behavior of OHPs. In this study, a one-dimensional numerical model of an OHP with check valves was first developed. Then, the model was compared with data from an on-orbit experiment. Finally, simulation of OHP startup behavior with several types of initial vapor-liquid distributions showed that OHP startup difficulty is due to localization of liquids in the cooling section.

Published
2017
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9. LiteBIRD: A Satellite for the Studies of B-Mode Polarization and Inflation from Cosmic Background Radiation Detection

Author

Josquin Errard, Kent D. Irwin, Ingunn Kathrine Wehus, Kazunori Kohri, Kam Arnold, Atsushi Okamoto, Osamu Tajima, T. Tomida, Hirokazu Ishino, L. Montier, T. Kawasaki, M. Willer, Ryo Yamamoto, Nobuhiko Katayama, B. Thorne, Eiichiro Komatsu, Takayuki Tomaru, Benjamin Westbrook, Toshiaki Iida, Tadayasu Dotani, Yuki Inoue, T. Funaki, Chiko Otani, Bruno Maffei, L. Hayes, Charles A. Hill, F. Vansyngel, T. Nagasaki, L. Duband, Tucker Elleflot, H. Imada, Johannes Hubmayr, A. Cukierman, M. Nakajima, T. Hasebe, Paul Turin, A. Dominjon, Eric V. Linder, S. Takatori, Toshifumi Shimizu, Yuto Minami, Shin Utsunomiya, Y. Sato, Yoshinori Uzawa, D. Tanabe, J. M. Duval, F. Boulanger, Takahiro Okamura, Jo Dunkley, Hiroyuki Sugita, Masato Naruse, Julian Borrill, Makoto Hattori, Theodore Kisner, Yuji Chinone, Tom Nitta, Dale Li, Mathieu Remazeilles, K. Ganga, Hideo Ogawa, Reijo Keskitalo, Masashi Hazumi, Giampaolo Pisano, E. Taylor, S. Takakura, H. Kanai, Jun-ichi Suzuki, N. Sato, Masahiro Tsujimoto, Yutaro Sekimoto, Shin-ichiro Sakai, Kimihiro Kimura, M. Nagai, N. W. Halverson, Anna Mangilli, Seongjae Cho, M. Tristram, S. A. Kernasovskiy, Jonathan Aumont, Blake D. Sherwin, Carole Tucker, Tomotake Matsumura, Kiyotomo Ichiki, Satoru Mima, T. de Haan, T. Hamada, N. Tomita, G. Patanchon, K. Komatsu, Shuji Matsuura, J. Grain, Paul L. Richards, Norio Okada, N. Hidehira, Kazuhisa Mitsuda, Soumen Basak, Yasuhiro Yamada, Aritoki Suzuki, H. K. Eriksen, Hajime Sugai, Shogo Nakamura, Peter A. R. Ade, Alex Lazarian, T. Fujino, Y. Akiba, Gabriel M. Rebeiz, H. Nishino, Nathan Whitehorn, Martin Bucher, R. Stompor, Shingo Kashima, A. Kibayashi, Y. Kida, Noah Kurinsky, D. W. Curtis, M. Inoue, Masaya Hasegawa, Adrian T. Lee, Shugo Oguri, Y. Segawa, David Alonso, A. Ducout, Carlo Baccigalupi, U. Fuskeland, S. Beckman, Uroš Seljak, R. Nagata, J. Fischer, Mitsuhiro Yoshida, K. L. Thompson, Darcy Barron, Gene C. Hilton, Noriko Y. Yamasaki, Erminia Calabrese, Neil Goeckner-Wald, R. Takaku, Suguru Takada, M. A. Dobbs, Oliver Jeong, Toshiya Namikawa, Yuki Sakurai, Chao-Lin Kuo, Kaori Hattori, Keisuke Shinozaki, D. Meilhan, M. Maki, Makoto Sawada, D. Kaneko, T. Yamashita, S. Uozumi, Takashi Noguchi, Akito Kusaka, Institut d'astrophysique spatiale (IAS), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales [Paris] (CNES), AstroParticule et Cosmologie (APC (UMR_7164)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Service des Basses Températures (SBT ), Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut de Recherche Interdisciplinaire de Grenoble (IRIG), Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Laboratoire des Cryoréfrigérateurs et Cryogénie Spatiale (LCCS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut de Recherche Interdisciplinaire de Grenoble (IRIG), Institut de recherche en astrophysique et planétologie (IRAP), Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Institut national des sciences de l'Univers (INSU - CNRS)-Université Toulouse III - Paul Sabatier (UT3), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS), and Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)

Subjects
detector: cryogenics, Cosmic microwave background, Cosmic background radiation, cosmic background radiation: polarization, Lagrangian point, B-mode polarization, Cosmic inflation, Primordial gravitational wave, Quantum gravity, Satellite, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics, 01 natural sciences, 010305 fluids & plasmas, law.invention, Telescope, Settore FIS/05 - Astronomia e Astrofisica, bolometer, law, 0103 physical sciences, General Materials Science, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], detector: optical, 010306 general physics, Physics, Bolometer, gravitational radiation: primordial, Astrophysics::Instrumentation and Methods for Astrophysics, Condensed Matter Physics, Polarization (waves), inflation: model, Atomic and Molecular Physics, and Optics, detector: sensitivity, modulation, Cardinal point, B-mode, angular resolution, moment: multipole, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], Multipole expansion
Abstract

著者人数: 152名(所属. 宇宙航空研究開発機構宇宙科学研究所(JAXA)(ISAS): 羽澄, 昌史; 堂谷, 忠靖; 長谷部, 孝; 今田, 大皓; 満田, 和久; 坂井, 真一郎; 関本, 裕太郎; Tomida, T.; 辻本, 匡弘; Yamamoto, R.; 山崎, 典子), Accepted: 2019-01-18, 資料番号: SA1180402000

Published
2019
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10. Lifetime test of the 4K Joule-Thomson cryocooler

Author

Keisuke Shinozaki, Kiyomi Ootsuka, Kenichi Kanao, Hiroyuki Sugita, Takao Nakagawa, Noriko Y. Yamasaki, Kosuke Tanaka, Shoji Tsunematsu, Kenichiro Sawada, Kazuhisa Mitsuda, Yoichi Sato, and Katsuhiro Narasaki

Subjects
010302 applied physics, Engineering, Continuous operation, business.industry, Design specification, Joule–Thomson effect, General Physics and Astronomy, Spica, Cryocooler, 01 natural sciences, symbols.namesake, 0103 physical sciences, symbols, General Materials Science, Stirling cryocooler, Aerospace engineering, 010306 general physics, business
Abstract

The 4K Joule-Thomson (JT) cryocooler is a key cryogenic component for future astronomy missions such as ATHENA and LiteBIRD. It was originally developed for SMILES (2009) and upgraded for ASTRO-H/SXS (2016) and SPICA. The 20K two-stage Stirling cryocooler developed for AKARI (2006) was also upgraded and used as a precooler. The operational life is a critical factor in planning long-term missions. An engineering model of the 4K-JT cryocooler was built for continuous operation to verify its lifetime. Testing was done from 2010 to 2019 and successful three-year operation was demonstrated with an extended operation; this was beyond the design specification. This paper describes the overall history of the lifetime test of the 4K-JT cryocooler and an evaluation of the end-of-life cooling performance and performance changes during long-term operation.

Published
2021
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11. Cooling capability of JT coolers during the cool-down phase for space science missions

Author

Yoichi Sato, Kazuhisa Mitsuda, Hiroyuki Sugita, Takao Nakagawa, Kenichiro Sawada, Keisuke Shinozaki, Kenichi Kanao, J. M. Duval, Noriko Y. Yamasaki, T. Prouvé, Chihiro Tokoku, Shoji Tsunematsu, Ivan Charles, Laboratoire des Cryoréfrigérateurs et Cryogénie Spatiale (LCCS), Département des Systèmes Basses Températures (DSBT ), Institut de Recherche Interdisciplinaire de Grenoble (IRIG), Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Grenoble Alpes (UGA)-Institut de Recherche Interdisciplinaire de Grenoble (IRIG), and Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Grenoble Alpes (UGA)

Subjects
010302 applied physics, Scientific instrument, [PHYS.ASTR.IM]Physics [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM], business.industry, Infrared telescope, Joule–Thomson effect, Phase (waves), General Physics and Astronomy, Spica, 01 natural sciences, Heat capacity, law.invention, Telescope, symbols.namesake, law, 0103 physical sciences, [PHYS.MECA.THER]Physics [physics]/Mechanics [physics]/Thermics [physics.class-ph], symbols, Environmental science, General Materials Science, Space Science, Aerospace engineering, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], 010306 general physics, business
Abstract

In space science missions that uses cryogen-free mechanical cooler systems to cool the low temperature telescope and detectors, a cooling time from room temperature to low temperature should be considered in the required mission life time, because of a limited cooling power of mechanical cooler. For instance, in the Space Infrared Telescope for Cosmology and Astrophysics (SPICA), the 4K-class Joule Thomson cooler (4K-JT) and the 1K-class Joule Thomson cooler (1K-JT) are being considered to cool a 2.5 m telescope and provide a 1–4 K environment for scientific instruments. The cooling capability of these JT coolers, below 20 K and even lower than 5 K, is critical for initial cooling. The 4K-JT cooling from precooling to operating temperatures under the heat input was measured and confirmed that the 4K-JT has enough cooling power to cool with these heat load. The 1K-JT cool down measurement with heater was also performed. These results enabled us to estimate the cool down time for the heat capacity provided by the telescope and scientific instruments assumed in SPICA, LiteBIRD and the ESA X-ray mission ATHENA.

Published
2020
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12. Hitomi (ASTRO-H) X-ray Astronomy Satellite

Author

Laura Brenneman, Hironori Matsumoto, Kirk Gilmore, Takayuki Yuasa, D. Lumb, Manabu Ishida, Aurora Simionescu, Takao Nakagawa, Junichiro Katsuta, Esra Bulbul, Meng P. Chiao, Philippe Laurent, Jelle de Plaa, Hiroyuki Ogawa, Keith Arnaud, Keiji Ogi, John P. Doty, B. Ramsey, Yuzuru Tawara, C. Megan Urry, Eric D. Miller, Peter Shirron, Gregory V. Brown, Dan R. Wilkins, Hiroshi Tsunemi, Richard F. Mushotzky, Nobuyuki Kawai, Brian J. Williams, Steven W. Allen, Naoko Iyomoto, Taro Kawano, Katja Pottschmidt, Yang Soong, Tadayuki Takahashi, Yasuharu Sugawara, Ikuyuki Mitsuishi, Margherita Giustini, Greg Madejski, Tetsu Kitayama, Megumi Shidatsu, Hideyuki Mori, Łukasz Stawarz, Randall K. Smith, Satoshi Sugita, Norbert Schartel, James Pontius, Kazuhiro Nakazawa, Eugenio Ursino, Katsuhiro Hayashi, Toshio Nakano, Satoru Katsuda, Cor P. de Vries, Adam R. Foster, Masanobu Ozaki, Kenji Minesugi, Tomomi Watanabe, Yuichi Terashima, Christopher S. Reynolds, Hiroaki Sameshima, Alex Koujelev, Naohisa Anabuki, Isamu Hatsukade, Masaharu Nomachi, Yoichi Yatsu, Yasunobu Uchiyama, Steve O' Dell, Ann Hornschemeier, Akio Hoshino, Yasuo Tanaka, M. Pohl, Kyoko Matsushita, Masahiro Tsujimoto, Hideki Uchiyama, Mark O. Kimball, Arvind Parmar, Gary A. Sneiderman, Yoshiyuki Inoue, Toru Tamagawa, Yukikatsu Terada, Shinya Nakashima, Tsuneyoshi Kamae, Dmitry Khangulyan, Kiyoshi Hayashida, Rie Sato, Aya Bamba, Roger Blandford, Kazunori Ishibashi, Shinya Saito, Caroline A. Kilbourne, Toshio Murakami, Takeda Shin'ichiro, Missagh Mehdipour, Motohide Kokubun, Masachika Iwai, Dan McCammon, Michael J. DiPirro, Marshall W. Bautz, Shunji Kitamoto, Naomi Ota, Brian R. McNamara, Frits Paerels, Stéphane Paltani, Magnus Axelsson, Edgar Canavan, Nobutaka Bando, Peter J. Serlemitsos, Shu Koyama, Felix Aharonian, Matteo Guainazzi, Joseph Miko, Masayoshi Nobukawa, Thomas G. Bialas, Koji Mori, Makoto Yamauchi, Uno Shin'ichiro, Hirokazu Odaka, Toru Sasaki, Mina Ogawa, Philipp Azzarello, Atsushi Wada, Tsuyoshi Okazaki, Ken Ebisawa, Takeshi Go Tsuru, Yoshitomo Maeda, Jon M. Miller, A. L. King, Cynthia Simmons, Hirofumi Noda, Hiromitsu Takahashi, Kazuhisa Mitsuda, Carlo Ferrigno, Hiroyasu Tajima, Kazuo Makishima, Erin Kara, Fumie Akimoto, Shigeo Kawasaki, Kumi Ishikawa, Kosuke Sato, Hiroshi Nakajima, Knox S. Long, Jun Kataoka, Keisuke Shinozaki, Kazuyuki Hirose, Keisuke Tamura, Teruaki Enoto, Yoh Takei, Yoshito Haba, Shinya Yamada, Richard L. Kelley, Yoshihiro Ueda, Megan E. Eckart, Takaya Ohashi, Shin-ichiro Sakai, Kevin R. Boyce, D. Haas, Atsushi Okamoto, Kazuhiro Sakai, Ryo Nagino, Makoto Asai, Maurice A. Leutenegger, Michael Loewenstein, Daniel R. Wik, Yohko Tsuboi, Maria Chernyakova, Shiro Ueno, Koji Mukai, Hiroshi Murakami, Takeshi Nakamori, Hiroshi Tomida, Tahir Yaqoob, Norbert Werner, Paolo Coppi, Abderahmen Zoghbi, Shin Watanabe, Kosei Ishimura, Hideyo Kunieda, Candace Masters, Yusuke Nishioka, Shigeo Yamauchi, Maxim Markevitch, Yuto Ichinohe, Andrew C. Fabian, Ryuichi Fujimoto, Kenji Hamaguchi, Liyi Gu, Edward M. Cackett, Chris Done, Junko S. Hiraga, Chris Baluta, Noriko Y. Yamasaki, Maki Shida, Makoto Tashiro, Takanobu Shimada, Yasuyuki T. Tanaka, Massimiliano Galeazzi, Ilana M. Harrus, Naoko Iwata, Timothy R. Kallman, Takuya Miyazawa, Kumiko K. Nobukawa, Madoka Kawaharada, Hisamitsu Awaki, Takaaki Tanaka, Tadayasu Dotani, Goro Sato, Ciro Pinto, Hiroya Yamaguchi, Harvey Moseley, Yoshiharu Namba, Shutaro Ueda, Masayuki Itoh, Takayoshi Kohmura, Daisuke Yonetoku, Yoshitaka Ishisaki, Hans A. Krimm, Hiromi Seta, Atsumasa Yoshida, Kouichi Hagino, Yuichiro Ezoe, Samar Safi-Harb, John P. Hughes, Daniel Maier, Hajime Inoue, Lorella Angelini, Yasuko Shibano, Frederick S. Porter, Saori Konami, Takayuki Tamura, Shin Mineshige, Peter Kretschmar, Yoichi Sato, Helen Russell, Hiroyuki Uchida, Elisa Costantini, Chikara Natsukari, Housei Nagano, Jan-Willem den Herder, Francesco Tombesi, Jelle Kaastra, Daniel S. McGuinness, Masanori Ohno, Hiroyuki Sugita, Katsuji Koyama, Tsunefumi Mizuno, Theodore Muench, Shiu-Hang Lee, Poshak Gandhi, Yasushi Fukazawa, Stefan Funk, Luigi C. Gallo, Tatsuro Kosaka, Andrea Goldwurm, Ryo Iizuka, Masayuki Ohta, Kazutaka Yamaoka, Marc Audard, Makoto Sawada, Takashi Okajima, Franco Moroso, Akihiro Furuzawa, Aya Kubota, Chris Jewell, Olivier Limousin, Takayuki Hayashi, Takao Kitaguchi, Takahiro Yamada, Hiroki Akamatsu, Andrew Szymkowiak, Robert Petre, Irina Zhuravleva, Dublin Institute for Advanced Studies (DIAS), SRON Netherlands Institute for Space Research (SRON), Climate and Environmental Physics [Bern] (CEP), Physikalisches Institut [Bern], Universität Bern [Bern]-Universität Bern [Bern], Columbia Astrophysics Laboratory (CAL), Columbia University [New York], Stockholm University, Kavli Institute for Particle Astrophysics and Cosmology (KIPAC), Stanford University [Stanford], AstroParticule et Cosmologie (APC (UMR_7164)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7), Stanford University, Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Universität Bern [Bern] (UNIBE)-Universität Bern [Bern] (UNIBE), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Space operations, X-ray telescope, microcalorimeter, 01 natural sciences, x-ray astronomy, 010309 optics, gamma-ray astronomy, 0103 physical sciences, 010303 astronomy & astrophysics, Instrumentation, ComputingMilieux_MISCELLANEOUS, Remote sensing, [PHYS]Physics [physics], X-ray astronomy, Spacecraft, business.industry, Mechanical Engineering, Astronomy and Astrophysics, hard x-ray, Gamma-ray astronomy, First light, Electronic, Optical and Magnetic Materials, Spacecraft system, x-ray, Space and Planetary Science, Control and Systems Engineering, gamma ray, Satellite, business, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Abstract

著者人数: 270名（所属. 宇宙航空研究開発機構宇宙科学研究所(JAXA)(ISAS): 高橋, 忠幸; 国分, 紀秀; 満田, 和久; Baluta, Chris; 坂東, 信尚; 堂谷, 忠靖; 海老沢, 研; 林, 克洋; 廣瀬, 和之; 飯塚, 亮; 石田, 学; 石川, 久美; 石村, 康生; 岩井, 将親; 岩田, 直子; 河野, 太郎; 川崎, 繁男; 小山, 志勇; 前田, 良知; 峯杉, 賢治; 中川, 貴雄; 夏苅, 権; 小川, 博之; 小川, 美奈; 太田, 方之; 岡崎, 健; 尾崎, 正伸; 坂井, 真一郎; 鮫島, 寛明; 佐藤, 悟郎; 佐藤, 理江; 柴野, 靖子; 志田, 真樹; 嶋田, 貴信; Simionescu, Aurora; 菅原, 泰晴; 竹井, 洋; 田村, 隆幸; 田中, 靖郎; 田代, 信; 冨田, 洋; 辻本, 匡弘; 上田, 周太朗; 上野, 史郎; 和田, 篤始; 渡辺, 伸; 山田, 隆弘; 山崎, 典子）, Number of authors: 270 (Affiliation. Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA)(ISAS): Takahashi, Tadayuki; Kokubun, Motohide; Mitsuda, Kazuhisa; Baluta, Chris; Bando, Nobutaka; Dotani, Tadayasu; Ebisawa, Ken; Hayashi, Katsuhiro; Hirose, Kazuyuki; Iizuka, Ryo; Ishida, Manabu; Ishikawa, Kumi; Ishimura, Kosei; Iwai, Masachika; Iwata, Naoko; Kawano, Taro; Kawasaki, Shigeo; Koyama, Shu; Maeda, Yoshitomo; Minesugi, Kenji; Nakagawa, Takao; Natsukari, Chikara; Ogawa, Hiroyuki; Ogawa, Mina; Ohta, Masayuki; Okazaki, Tsuyoshi; Ozaki, Masanobu; Sakai, Shinichiro; Sameshima, Hiroaki; Sato, Goro; Sato, Rie; Shibano, Yasuko; Shida, Maki; Shimada, Takanobu; Simionescu, Aurora; Sugawara, Yasuharu; Takei, Yoh; Tamura, Takayuki; Tanaka, Yasuo; Tashiro, Makoto; Tomida, Hiroshi; Tsujimoto, Masahiro; Ueda, Shutaro; Ueno, Shiro; Wada, Atsushi; Watanabe, Shin; Yamada, Takahiro; Yamasaki, Noriko Y.), Accepted: 2018-02-05, 資料番号: SA1170333000

Published
2018
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13. Performance of lightweight large C/SiC mirror

Author

Masashi Miyamoto, Shin Utsunomiya, Yukari Y. Yui, Masahiro Suganuma, Hiroyuki Sugita, Takao Nakagawa, Masataka Naitoh, Haruyoshi Katayama, Masaki Kotani, Yasuji Yamamoto, Hideki Saruwatari, Yoshio Tange, Toshihiko Yamawaki, Hidehiro Kaneda, and Ken Goto

Subjects
Materials science, business.industry, Astrophysics::Instrumentation and Methods for Astrophysics, Polishing, Spica, Cryogenics, Image stitching, Primary mirror, chemistry.chemical_compound, Optics, chemistry, Homogeneity (physics), Silicon carbide, business, Surface finishing
Abstract

Very lightweight mirror will be required in the near future for both astronomical and earth science/observation missions. Silicon carbide is becoming one of the major materials applied especially to large and/or light space-borne optics, such as Herschel, GAIA, and SPICA. On the other hand, the technology of highly accurate optical measurement of large telescopes, especially in visible wavelength or cryogenic circumstances is also indispensable to realize such space-borne telescopes and hence the successful missions. We have manufactured a very lightweight Φ=800mm mirror made of carbon reinforced silicon carbide composite that can be used to evaluate the homogeneity of the mirror substrate and to master and establish the ground testing method and techniques by assembling it as the primary mirror into an optical system. All other parts of the optics model are also made of the same material as the primary mirror. The composite material was assumed to be homogeneous from the mechanical tests of samples cut out from the various areas of the 800mm mirror green-body and the cryogenic optical measurement of the mirror surface deformation of a 160mm sample mirror that is also made from the same green-body as the 800mm mirror. The circumstance and condition of the optical testing facility has been confirmed to be capable for the highly precise optical measurements of large optical systems of horizontal light axis configuration. Stitching measurement method and the algorithm for analysis of the measurement is also under study.

Published
2017
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14. Concept Study of Optical Configurations for High-Frequency Telescope for LiteBIRD

Author

D. W. Curtis, M. Nakajima, T. Funaki, R. Takaku, Yoshinori Uzawa, Carlo Baccigalupi, Johannes Hubmayr, U. Fuskeland, Theodore Kisner, S. Beckman, Anna Mangilli, Erminia Calabrese, Neil Goeckner-Wald, Uroš Seljak, M. Nagai, N. Katayama, Jonathan Aumont, Carole Tucker, Suguru Takada, Shin Utsunomiya, Kazunori Kohri, R. Nagata, Kam Arnold, M. Bucher, A. Dominjon, N. Sato, M. A. Dobbs, Shin-ichiro Sakai, Darcy Barron, Gene C. Hilton, H. K. Eriksen, Yasuhiro Yamada, Oliver Jeong, Aritoki Suzuki, Atsushi Okamoto, Tadayasu Dotani, T. Tomida, D. Meilhan, L. Duband, S. A. Kernasovskiy, S. Takakura, S. Takatori, R. Stompor, A. Ducout, B. Thorne, Eiichiro Komatsu, Hajime Sugai, Keisuke Shinozaki, N. Tomita, J. Fischer, Yuji Chinone, C. L. Kuo, L. Montier, Akito Kusaka, Toshiaki Iida, Aaron Lee, Yuki Inoue, Makoto Sawada, Ingunn Kathrine Wehus, L. Hayes, Mitsuhiro Yoshida, K. L. Thompson, H. Nishino, Mathieu Remazeilles, Tomotake Matsumura, Shugo Oguri, K. Komatsu, Reijo Keskitalo, T. Yamashita, T. Kawasaki, Takahiro Okamura, Masashi Hazumi, Osamu Tajima, Takayuki Tomaru, G. Patanchon, M. Tristram, Giampaolo Pisano, Hirokazu Ishino, Masato Naruse, Jun-ichi Suzuki, H. M. Cho, Paul Turin, Toshiya Namikawa, Yuki Sakurai, Y. Kida, Blake D. Sherwin, J. Grain, Chiko Otani, Noriko Y. Yamasaki, N. W. Halverson, Shuji Matsuura, S. Uozumi, Takashi Noguchi, T. Nagasaki, H. Imada, M. Willer, Y. Sato, M. Inoue, J. M. Duval, Bruno Maffei, Toshifumi Shimizu, Yuto Minami, F. Boulanger, Tucker Elleflot, Charles A. Hill, Benjamin Westbrook, Shogo Nakamura, Peter A. R. Ade, Kaori Hattori, Paul L. Richards, Alex Lazarian, Y. Segawa, Julian Borrill, Ryo Yamamoto, Kiyotomo Ichiki, M. Maki, Satoru Mima, D. Tanabe, Jo Dunkley, Kazuhisa Mitsuda, Soumen Basak, Gabriel M. Rebeiz, Tom Nitta, T. de Haan, T. Hamada, H. Kanai, K. Ganga, Hideo Ogawa, D. Kaneko, A. Cukierman, Nathan Whitehorn, Eric V. Linder, Masaya Hasegawa, Josquin Errard, Kimihiro Kimura, Hiroyuki Sugita, David Alonso, T. Hasebe, Kent D. Irwin, E. Taylor, Norio Okada, N. Hidehira, Shingo Kashima, A. Kibayashi, Noah Kurinsky, T. Fujino, Y. Akiba, Makoto Hattori, Dale Li, Masahiro Tsujimoto, Yutaro Sekimoto, F. Vansyngel, Institut d'astrophysique spatiale (IAS), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), AstroParticule et Cosmologie (APC (UMR_7164)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Commissariat à l'énergie atomique et aux énergies alternatives - Laboratoire d'Electronique et de Technologie de l'Information (CEA-LETI), Direction de Recherche Technologique (CEA) (DRT (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Institut de recherche en astrophysique et planétologie (IRAP), Institut national des sciences de l'Univers (INSU - CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Electronique et des Technologies de l'Information (CEA-LETI), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Grenoble Alpes (UGA), Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales [Paris] (CNES), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Service des Basses Températures (SBT ), Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut de Recherche Interdisciplinaire de Grenoble (IRIG), Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Laboratoire des Cryoréfrigérateurs et Cryogénie Spatiale (LCCS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut de Recherche Interdisciplinaire de Grenoble (IRIG), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7), and Université Grenoble Alpes (UGA)-Direction de Recherche Technologique (CEA) (DRT (CEA))

Subjects
Cosmic microwave background radiation, Inflation, Satellite, Telescope, Silicon, Cosmic microwave background, chemistry.chemical_element, engineering.material, 01 natural sciences, law.invention, 010309 optics, Optics, Settore FIS/05 - Astronomia e Astrofisica, Coating, law, 0103 physical sciences, General Materials Science, Sensitivity (control systems), [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], 010306 general physics, Physics, business.industry, Condensed Matter Physics, Atomic and Molecular Physics, and Optics, Lens (optics), chemistry, engineering, Reflection (physics), business, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Abstract

著者人数: 152名（所属. 宇宙航空研究開発機構宇宙科学研究所(JAXA)(ISAS): 長谷部, 孝; 堂谷, 忠靖; 羽澄, 昌史; 今田, 大皓; 満田, 和久; 坂井, 真一郎; 関本, 裕太郎; Tomida, T.; 辻本, 匡弘; Yamamoto, R.; 山崎, 典子), Accepted: 2018-04-07, 資料番号: SA1180209000

Published
2017
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18. The Astro-H high resolution soft x-ray spectrometer

Author

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

Subjects
Physics, Range (particle radiation), Spectrometer, business.industry, Liquid helium, Astrophysics::High Energy Astrophysical Phenomena, Resolution (electron density), Astrophysics::Instrumentation and Methods for Astrophysics, 01 natural sciences, Galaxy, law.invention, 010309 optics, Telescope, Optics, law, 0103 physical sciences, Orbit (dynamics), business, Spectroscopy, 010303 astronomy & astrophysics
Abstract

We present the overall design and performance of the Astro-H (Hitomi) Soft X-Ray Spectrometer (SXS). The instrument uses a 36-pixel array of x-ray microcalorimeters at the focus of a grazing-incidence x-ray mirror Soft X-Ray Telescope (SXT) for high-resolution spectroscopy of celestial x-ray sources. The instrument was designed to achieve an energy resolution better than 7 eV over the 0.3-12 keV energy range and operate for more than 3 years in orbit. The actual energy resolution of the instrument is 4-5 eV as demonstrated during extensive ground testing prior to launch and in orbit. The measured mass flow rate of the liquid helium cryogen and initial fill level at launch predict a lifetime of more than 4 years assuming steady mechanical cooler performance. Cryogen-free operation was successfully demonstrated prior to launch. The successful operation of the SXS in orbit, including the first observations of the velocity structure of the Perseus cluster of galaxies, demonstrates the viability and power of this technology as a tool for astrophysics.

Published
2016
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19. New cryogenic system of the next-generation infrared astronomy mission SPICA

Author

Ken Goto, Keisuke Shinozaki, Hiroyuki Sugita, M. Kawada, S. Takeuchi, Takao Nakagawa, Tadahito Mizutani, Hiroyuki Ogawa, Y. Sato, Naoki Isobe, Hideo Matsuhara, Hiroshi Shibai, and Toshihiko Yamawaki

Subjects
Physics, Infrared astronomy, Radiative cooling, Physics::Instrumentation and Detectors, Cryogenic system, Astrophysics::Instrumentation and Methods for Astrophysics, Astronomy, Cryogenics, Spica, Cryocooler, 01 natural sciences, law.invention, Telescope, symbols.namesake, law, 0103 physical sciences, symbols, Astrophysics::Earth and Planetary Astrophysics, Planck, 010306 general physics, 010303 astronomy & astrophysics, Astrophysics::Galaxy Astrophysics
Abstract

We present the new design of the cryogenic system of the next-generation infrared astronomy mission SPICA under the new framework. The new design employs the V-groove design for radiators, making the best use of the Planck heritage. The new design is based on the ESA-JAXA CDF study (NG-CryoIRTel, CDF-152(A)) with a 2 m telescope, and we modified the CDF design to accommodate the 2.5 m telescope to meet the science requirements of SPICA. The basic design concept of the SPICA cryogenic system is to cool the Science Instrument Assembly (SIA, which is the combination of the telescope and focal-plane instruments) below 8K by the combination of the radiative cooling system and mechanical cryocoolers without any cryogen.

Published
2016
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20. Mechanical cooler system for the next-generation infrared space telescope SPICA

Author

Tadahito Mizutani, Mitsunobu Kawada, Akinobu Okabayashi, Shoji Tsunematsu, Toshihiko Yamawaki, Hideo Matsuhara, Hiroshi Shibai, Katsuhiro Narasaki, Keisuke Shinozaki, Hiroyuki Sugita, Yoichi Sato, Takao Nakagawa, and Hiroyuki Ogawa

Subjects
Physics, business.industry, Infrared telescope, Astrophysics::Instrumentation and Methods for Astrophysics, Spica, Radiant cooling, Orbital mechanics, 01 natural sciences, law.invention, Telescope, Optics, Spitzer Space Telescope, law, 0103 physical sciences, Water cooling, Astrophysics::Solar and Stellar Astrophysics, Astrophysics::Earth and Planetary Astrophysics, 010306 general physics, business, 010303 astronomy & astrophysics, Astrophysics::Galaxy Astrophysics, Halo orbit
Abstract

The Space Infrared Telescope for Cosmology and Astrophysics (SPICA) is a pre-project of JAXA in collaboration with ESA to be launched in the 2020s. The SPICA mission is to be launched into a halo orbit around the second Lagrangian point in the Sun-Earth system, which allows us to use effective radiant cooling in combination with a mechanical cooling system in order to cool a 2.5m-class large IR telescope below 8K. Recently, a new system design in particular thermal structure of the payload module has been studied by considering the technical feasibility of a cryogenic cooled telescope within current constraints of the mission in the CDF (Concurrent Design Facility) study of ESA/ESTEC. Then, the thermal design of the mechanical cooler system, for which the Japanese side is responsible, has been examined based on the CDF study and the feasible solution giving a proper margin has been obtained. As a baseline, 4K / 1K-class Joule-Thomson coolers are used to cool the telescope and thermal interface for Focal Plane Instruments (FPIs). Additionally, two sets of double stirling coolers (2STs) are used to cool the Telescope shield. In this design, nominal operation of FPIs can be kept when one mechanical cooler is in failure.

Published
2016
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21. Performance of the helium dewar and cryocoolers of ASTRO-H SXS

Author

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

Subjects
Physics, Stirling engine, Spectrometer, Nuclear engineering, Refrigerator car, chemistry.chemical_element, Heat sink, Orbital mechanics, Cryocooler, 01 natural sciences, law.invention, Nuclear magnetic resonance, chemistry, law, 0103 physical sciences, Satellite, 010306 general physics, 010303 astronomy & astrophysics, Helium
Abstract

The Soft X-ray Spectrometer (SXS) is a cryogenic high-resolution X-ray spectrometer onboard the ASTRO-H satellite, that achieves energy resolution better than 7 eV at 6 keV, by operating the detector array at 50 mK using an adiabatic demagnetization refrigerator. The cooling chain from room temperature to the ADR heat sink is composed of 2-stage Stirling cryocoolers, a 4He Joule-Thomson cryocooler, and super uid liquid He, and is installed in a dewar. It is designed to achieve a helium lifetime of more than 3 years with a minimum of 30 liters. The satellite was launched on 2016 February 17, and the SXS worked perfectly in orbit, until March 26 when the satellite lost its function. It was demonstrated that the heat load on the He tank was about 0.7 mW, which would have satisfied the lifetime requirement. This paper describes the design, results of ground performance tests, prelaunch operations, and initial operation and performance in orbit of the flight dewar and cryocoolers.

Published
2016
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22. In-orbit operation of the ASTRO-H SXS

Author

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

Subjects
Physics, Spectrometer, business.industry, Orbital mechanics, 01 natural sciences, Short life, 010309 optics, 0103 physical sciences, Satellite, Aerospace engineering, Orbit (control theory), business, 010303 astronomy & astrophysics, Remote sensing
Abstract

We summarize all the in-orbit operations of the Soft X-ray Spectrometer (SXS) onboard the ASTRO-H (Hit- omi) satellite. The satellite was launched on 2016/02/17 and the communication with the satellite ceased on 2016/03/26. The SXS was still in the commissioning phase, in which the setups were progressively changed. This article is intended to serve as a reference of the events in the orbit to properly interpret the SXS data taken during its short life time, and as a test case for planning the in-orbit operation for future micro-calorimeter missions.

Published
2016
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23. Vibration isolation system for cryocoolers of Soft X-ray Spectrometer (SXS) onboard ASTRO-H (Hitomi)

Author

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

Subjects
Soft x ray, Materials science, Spacecraft, Spectrometer, Physics::Instrumentation and Detectors, business.industry, Detector, Astrophysics::Instrumentation and Methods for Astrophysics, Orbital mechanics, Cryocooler, 01 natural sciences, Nuclear magnetic resonance, Vibration isolation, Flight model, 0103 physical sciences, Aerospace engineering, 010306 general physics, business, 010303 astronomy & astrophysics
Abstract

Soft X-ray Spectrometer (SXS) onboard ASTRO-H (named Hitomi after launch) is a microcalorimeter-type spectrometer, installed in a dewar to be cooled at 50 mK. The energy resolution of the SXS engineering model suffered from micro-vibration from cryocoolers mounted on the dewar. This is mitigated for the flight model by introducing vibration isolation systems between the cryocoolers and the dewar. The detector performance of the flight model was verified before launch of the spacecraft in both ambient condition and thermal-vac condition, showing no detectable degradation in energy resolution. The in-orbit performance was also consistent with that on ground, indicating that the cryocoolers were not damaged by launch environment. The design and performance of the vibration isolation system along with the mechanism of how the micro-vibration could degrade the cryogenic detector is shown.

Published
2016
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24. Overview of Sumitomo coolers and Dewars for space use

Author

Shoji Tsunematsu, Takao Nakagawa, Kenichi Kikuchi, Kazuhisa Mitsuda, Kenichi Kanao, Toshiyuki Nishibori, Ryota Sato, Hiroshi Murakami, Yoichi Sato, Hiroyuki Sugita, Katsuhiro Narasaki, Kiyomi Ootsuka, Akinobu Okabayashi, and Masahide Murakami

Subjects
010302 applied physics, Engineering, Stirling engine, business.industry, Single stage, Space use, Thermodynamics, Cryocooler, 01 natural sciences, law.invention, law, 0103 physical sciences, Aerospace engineering, 010306 general physics, business, Aerospace
Abstract

Sumitomo Heavy Industries, ltd. (SHI) has been developing cooler and Dewar technology for space application with Japan Aerospace Exploration Agency. SHI has four types of coolers to cover temperature range from 1.7K to 80K or more. Those are Single stage Stirling coolers for 80K, two-stage Stirling coolers for 20K, 4K-class cooler and 1K-class cooler. 4K and 1K class coolers consist of a Joule-Thomson cooler and a two-stage Stirling as a pre-cooler. SHI also provided Dewars. In this paper, SHI’s cooler and Dewar technology are described.

Published
2016
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25. The ASTRO-H (Hitomi) x-ray astronomy satellite

Author

Yasuharu Sugawara, Luigi C. Gallo, Manabu Ishida, Hiroya Yamaguchi, Makoto Yamauchi, Hiromitsu Takahashi, Kazuhisa Mitsuda, Eric J. Miller, Ciro Pinto, Grzegorz Madejski, Meng P. Chiao, Yoshiharu Namba, Kumiko K. Nobukawa, Goro Sato, Harvey Moseley, Takayoshi Kohmura, Mina Ogawa, Greg Brown, Kevin R. Boyce, Missagh Mehdipour, Shutaro Ueda, Satoru Katsuda, Philipp Azzarello, Shin'ichiro Uno, Atsushi Wada, Takao Kitaguchi, Knox S. Long, Yohko Tsuboi, Nobutaka Bando, Shin-ichiro Sakai, Hajime Inoue, Masayuki Itoh, Kazuyuki Hirose, Norbert Werner, Fumie Akimoto, Timothy R. Kallman, Shigeo Yamauchi, Maxim Markevitch, Yuto Ichinohe, Naohisa Anabuki, Satoshi Sugita, Yoshiyuki Inoue, Olivier Limousin, Meg Urry, Kouichi Hagino, Akio Hoshino, Kumi Ishikawa, Cor P. de Vries, Teruaki Enoto, Yasuo Tanaka, M. Pohl, Masanobu Ozaki, Kenji Minesugi, Peter Shirron, Maurice A. Leutenegger, Koji Mori, Hideki Uchiyama, Yukikatsu Terada, D. Haas, Keith A. Arnaud, Masanori Ohno, Christopher S. Reynolds, Hiromi Seta, Yusuke Nishioka, Carlo Ferrigno, Edgar Canavan, Katsuji Koyama, Daniel R. Wik, Shunji Kitamoto, Keisuke Shinozaki, Katsuhiro Hayashi, Dan McCammon, David H. Lumb, Kyoko Matsushita, Hiroyuki Uchida, John P. Hughes, Daniel Maier, Lorella Angelini, Taro Kawano, Cynthia Simmons, Shiro Ueno, Koji Mukai, Abderahmen Zoghbi, Makoto Asai, Toru Tamagawa, Rie Sato, Keisuke Tamura, Yuzuru Tawara, Łukasz Stawarz, Motohide Kokubun, Hiroshi Murakami, Hiroshi Tomida, F. Scott Porter, Hiroshi Tsunemi, Ikuyuki Mitsuishi, Michael J. DiPirro, Richard F. Mushotzky, Nobuyuki Kawai, Brian J. Williams, Richard L. Kelley, Hirokazu Odaka, Matteo Guainazzi, Kazuo Makishima, Yuichiro Ezoe, Takahiro Yamada, Hiroki Akamatsu, Andrew Szymkowiak, Philippe Laurent, James Pontius, Yasunobu Uchiyama, Tetsu Kitayama, Megumi Shidatsu, Felix Aharonian, Shigeo Kawasaki, Takanobu Shimada, Laura Brenneman, Toru Sasaki, Isamu Hatsukade, A. L. King, Takuya Miyazawa, Toshio Nakano, Atsumasa Yoshida, Robert Petre, Shinya Yamada, Stéphane Paltani, Eugenio Ursino, Adam R. Foster, Takayuki Hayashi, Shiu-Hang Lee, Toshio Murakami, Chris Done, Takeshi Nakamori, Kazuhiro Sakai, Ryo Nagino, Yuichi Terashima, Caroline A. Kilbourne, Michael Loewenstein, Shin Mineshige, Peter Kretschmar, John P. Doty, Candace Masters, Yoichi Sato, Junko S. Hiraga, Magnus Axelsson, Kenji Hamaguchi, Marshall W. Bautz, Junichiro Katsuta, Hiroaki Sameshima, Ilana M. Harrus, Thomas G. Bialas, Elisa Costantini, Daniel S. McGuinness, Yoichi Yatsu, Kazutaka Yamaoka, Naoko Iwata, Mark O. Kimball, Arvind Parmar, Yasuko Shibano, Norbert Schartel, Helen Russell, Gary A. Sneiderman, Steve Allen, Kiyoshi Hayashida, Makoto Sawada, Megan E. Eckart, Takaya Ohashi, Dmitry Khangulyan, Kosei Ishimura, Tatsuro Kosaka, Andrea Goldwurm, Takashi Okajima, Hirofumi Noda, Franco Moroso, F. B. S. Paerels, Hiroyuki Sugita, Alex Koujelev, Masaharu Nomachi, Tomomi Watanabe, Marc Audard, Tsunefumi Mizuno, Hideyo Kunieda, Keiji Ogi, Akihiro Furuzawa, Brian D. Ramsey, Masayoshi Nobukawa, Shinya Saito, Poshak Gandhi, Yasushi Fukazawa, Liyi Gu, Peter J. Serlemitsos, Noriko Y. Yamasaki, Tsuyoshi Okazaki, Takeshi Go Tsuru, Kosuke Sato, Aya Kubota, Chris Jewell, Yoshitomo Maeda, Yoshihiro Ueda, Shinya Nakashima, Irina Zhuravleva, Andrew C. Fabian, Tahir Yaqoob, Housei Nagano, Erin Kara, Brian R. McNamara, Naomi Ota, Shu Koyama, Joseph Miko, Madoka Kawaharada, Hisamitsu Awaki, Steve O'Dell, Takaaki Tanaka, Hironori Matsumoto, Tadayasu Dotani, Ken Ebisawa, Dan R. Wilkins, Hiroyasu Tajima, Yasuyuki T. Tanaka, Massimiliano Galeazzi, Chikara Natsukari, Jan-Willem den Herder, Tadayuki Takahashi, Francois Lebrun, Hiroshi Nakajima, Yoh Takei, Hideyuki Mori, Yoshito Haba, Jun Kataoka, Randall K. Smith, Atsushi Okamoto, Maria Chernyakova, Shin Watanabe, Edward M. Cackett, Shin'ichiro Takeda, Takayuki Tamura, Francesco Tombesi, Jelle Kaastra, Maki Shida, Chris Baluta, Kirk Gilmore, Aurora Simionescu, Ann Hornschemeier, Kazuhiro Nakazawa, Jelle de Plaa, Naoko Iyomoto, Atsushi Harayama, Aya Bamba, Katja Pottschmidt, Roger Blandford, Kazunori Ishibashi, Makoto Tashiro, Esra Bulbul, Yang Soong, Paolo De Coppi, Daisuke Yonetoku, Yoshitaka Ishisaki, Hans A. Krimm, Samar Safi-Harb, Masahiro Tsujimoto, Ryuichi Fujimoto, Takao Nakagawa, Hiroyuki Ogawa, Margherita Giustini, Tuneyoshi Kamae, Takayuki Yuasa, Ryo Iizuka, Masayuki Ohta, Jon M. Miller, and Theodore Muench

Subjects
Physics, X-ray astronomy, Spacecraft, business.industry, Astronomy, High resolution, First light, Gamma-ray astronomy, 01 natural sciences, Spacecraft system, Settore FIS/05 - Astronomia e Astrofisica, 0103 physical sciences, Satellite, 010306 general physics, business, 010303 astronomy & astrophysics
Abstract

The Hitomi (ASTRO-H) mission is the sixth Japanese X-ray astronomy satellite developed by a large international collaboration, including Japan, USA, Canada, and Europe. The mission aimed to provide the highest energy resolution ever achieved at E > 2 keV, using a microcalorimeter instrument, and to cover a wide energy range spanning four decades in energy from soft X-rays to gamma-rays. After a successful launch on 2016 February 17, the spacecraft lost its function on 2016 March 26, but the commissioning phase for about a month provided valuable information on the on-board instruments and the spacecraft system, including astrophysical results obtained from first light observations. The paper describes the Hitomi (ASTRO-H) mission, its capabilities, the initial operation, and the instruments/spacecraft performances confirmed during the commissioning operations for about a month.

Published
2016

26. PERFORMANCE OF LIGHTWEIGHT LARGE C/SiC MIRROR.

Author

YUI, Yukari Y., Ken GOTO, Hidehiro KANEDA, Haruyoshi KATAYAMA, Masaki KOTANI, Masashi MIYAMOTO, Masataka NAITOH, Takao NAKAGAWA, Hideki SARUWATARI, Masahiro SUGANUMA, Hiroyuki SUGITA, Yoshio TANGE, Shin UTSUNOMIYA, Yasuji YAMAMOTO, and Toshihiko YAMAWAKI

Published
2017
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