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Performance of ASTRO-H Hard X-Ray Telescope (HXT)
External Online Source: doi:10.1117/12.2231258
Author and Affiliation:
Furuzawa, Akihiro(Fujita Health Univ., Aichi, Japan);
Iizuka, Ryo(Tokyo Univ., Sagamihara, Japan);
Ishibashi, Kazunori(Nagoya Univ., Nagoya, Japan);
Mitsuishi, Ikuyuki(Nagoya Univ., Nagoya, Japan);
Ogi, Keiji(Ehime Univ., Matsuyama, Japan);
Sugita, Satoshi(Tokyo Institute of Technology, Tokyo, Japan);
Tawara, Yuzuru(Nagoya Univ., Nagoya, Japan);
Yamauchi, Shigeo(Nara Women's Univ., Japan);
Awaki, Hisamitsu(Ehime Univ., Matsuyama, Japan);
Kunieda, Hideyo(Nagoya Univ., Nagoya, Japan);
Ishida, Manabu(Tokyo Univ., Sagamihara, Japan);
Matsumoto, Hironori(Nagoya Univ., Nagoya, Japan);
Haba, Yohsito(Aichi Univ. of Education, Japan);
Hayashi, Takayuki(Nagoya Univ., Nagoya, Japan);
Itoh, Masayuki(Kobe Univ., Japan);
Kosaka, Tatsuro(Kochi Univ. of Technology, Tosayamada, Japan);
Maeda, Yoshitomo(Tokyo Univ., Sagamihara, Japan);
Miyazawa, Takuya(Okinawa Institute of Science and Technology Graduate University (OIST), Okinawa, Japan);
Mori, Hideyuki(NASA Goddard Space Flight Center, Greenbelt, MD United States);
Nagano, Hosei(Nagoya Univ., Nagoya, Japan);
Namba, Yoshiharu(Chubu Univ., Kasugai, Japan);
Ogasaka, Yasushi(Japan Science and Technology Agency, Japan);
Okajima, Takashi(NASA Goddard Space Flight Center, Greenbelt, MD United States);
Suzuki, Yoshio(Japan Synchrotron Radiation Research Institute (JASRI)SPring-8, Hyogo, Japan);
Tamura, Keisuke(Nagoya Univ., Nagoya, Japan);
Uesugi, Kentato(Japan Synchrotron Radiation Research Institute (JASRI)SPring-8, Hyogo, Japan)
Abstract: The Japanese X-ray Astronomy Satellite, Hitomi (ASTRO-H) carries hard X-ray imaging system, covering the energy band from 5 keV to 80 keV. The hard X-ray imaging system consists of two hard X-ray telescopes (HXT) and two hard X-ray imagers (HXI). The HXT employs tightly-nested, conically-approximated thin foil Wolter-I optics. The mirror surfaces of HXT were coated with PtC depth-graded multilayers. We carried out ground calibrations of HXTs at the synchrotron radiation facility SPring-8 BL20B2 in Japan, and found that total effective area of two HXTs was about 350 sq cm at 30 keV, and the half power diameter of HXT was about 1.9. After the launch of Hitomi, Hitomi observed several targets during the initial functional verification of the onboard instruments. The Hitomi software and calibration team (SCT) provided the Hitomis data of G21.5-0.9, a pulsar wind nebula, to the hardware team for the purpose of the instrument calibration. Through the analysis of the in-flight data, we have confirmed that the X-ray performance of HXTs in orbit was consistent with that estimated by the ground calibrations.
Publication Date: Jul 18, 2016
Document ID:
20170006118
(Acquired Jul 14, 2017)
Subject Category: ASTROPHYSICS
Report/Patent Number: GSFC-E-DAA-TN43747
Document Type: Conference Paper
Publication Information: SPIE Proceedings; Volume 9905; 990512
Publisher Information: SPIE
Meeting Information: Space Telescopes and Instrumentation 2016; 26 Jun. - 01 Jul. 2016; Edinburgh; United Kingdom
Meeting Sponsor: International Society for Optical Engineering; Bellingham, WA, United States
Financial Sponsor: NASA Goddard Space Flight Center; Greenbelt, MD United States
Organization Source: NASA Goddard Space Flight Center; Greenbelt, MD United States
Description: 8p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: X RAY ASTRONOMY; ENERGY BANDS; SYNCHROTRON RADIATION; X RAY IMAGERY; COATINGS; PULSARS; X RAY TELESCOPES; X RAYS; TARGETS; MIRRORS; ESTIMATING; NEBULAE
Other Descriptors: HARD X-RAYS; HARD X-RAY TELESCOPE; MULTILAYER; DEPTH-GRADED MULTILAYER; ASTRO-H; HXT
Availability Source: Other Sources
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