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Performance of ASTRO-H Hard X-Ray Telescope (HXT)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.
Document ID
20170006118
Acquisition Source
Goddard Space Flight Center
Document Type
Conference Paper
External Source(s)
Authors
Awaki, Hisamitsu
(Ehime Univ. Matsuyama, Japan)
Kunieda, Hideyo
(Nagoya Univ. Nagoya, Japan)
Ishida, Manabu
(Tokyo Univ. Sagamihara, Japan)
Matsumoto, Hironori
(Nagoya Univ. Nagoya, Japan)
Furuzawa, Akihiro
(Fujita Health Univ. Aichi, Japan)
Haba, Yohsito
(Aichi Univ. of Education Japan)
Hayashi, Takayuki
(Nagoya Univ. Nagoya, Japan)
Iizuka, Ryo
(Tokyo Univ. Sagamihara, Japan)
Ishibashi, Kazunori
(Nagoya Univ. Nagoya, Japan)
Itoh, Masayuki
(Kobe Univ. Japan)
Kosaka, Tatsuro
(Kochi Univ. of Technology Tosayamada, Japan)
Maeda, Yoshitomo
(Tokyo Univ. Sagamihara, Japan)
Mitsuishi, Ikuyuki
(Nagoya Univ. Nagoya, 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)
Ogi, Keiji
(Ehime Univ. Matsuyama, Japan)
Okajima, Takashi
(NASA Goddard Space Flight Center Greenbelt, MD United States)
Sugita, Satoshi
(Tokyo Institute of Technology Tokyo, Japan)
Suzuki, Yoshio
(Japan Synchrotron Radiation Research Institute (JASRI): SPring-8 Hyogo, Japan)
Tamura, Keisuke
(Nagoya Univ. Nagoya, Japan)
Tawara, Yuzuru
(Nagoya Univ. Nagoya, Japan)
Uesugi, Kentato
(Japan Synchrotron Radiation Research Institute (JASRI): SPring-8 Hyogo, Japan)
Yamauchi, Shigeo
(Nara Women's Univ. Japan)
Date Acquired
July 6, 2017
Publication Date
July 18, 2016
Publication Information
Publication: SPIE Proceedings
Publisher: SPIE
Volume: 9905
Subject Category
Astrophysics
Report/Patent Number
GSFC-E-DAA-TN43747
Meeting Information
Meeting: Space Telescopes and Instrumentation 2016
Location: Edinburgh
Country: United Kingdom
Start Date: June 26, 2016
End Date: July 1, 2016
Sponsors: International Society for Optical Engineering
Distribution Limits
Public
Copyright
Other
Keywords
hard X-ray telescope
multilayer
depth-graded multilayer
HXT
Hard X-rays
ASTRO-H

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