Soft gamma-ray detector for the ASTRO-H mission

Shin Watanabe, Hiroyasu Tajima, Yasushi Fukazawa, Roger Blandford, Teruaki Enoto, Jun Kataoka, Madoka Kawaharada, Motohide Kokubun, Philippe Laurent, François Lebrun, Olivier Limousin, Greg Madejski, Kazuo Makishima, Tsunefumi Mizuno, Takeshi Nakamori, Kazuhiro Nakazawa, Kunishiro Mori, Hirokazu Odaka, Masanori Ohno, Masayuki OhtaGoro Sato, Rie Sato, Shin'ichiro Takeda, Hiromitsu Takahashi, Tadayuk Takahashi, Takaaki Tanaka, Makoto Tashiro, Yukikatsu Terada, Hideki Uchiyama, Yasunobu Uchiyama, Shinya Yamada, Yoichi Yatsu, Daisuke Yonetoku, Takayuki Yuasa

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    31 Citations (Scopus)

    Abstract

    ASTRO-H is the next generation JAXA X-ray satellite, intended to carry instruments with broad energy coverage and exquisite energy resolution. The Soft Gamma-ray Detector (SGD) is one of ASTRO-H instruments and will feature wide energy band (60-600 keV) at a background level 10 times better than the current instruments on orbit. The SGD is complimentary to ASTRO-H's Hard X-ray Imager covering the energy range of 5-80 keV. The SGD achieves low background by combining a Compton camera scheme with a narrow field-of-view active shield where Compton kinematics is utilized to reject backgrounds. The Compton camera in the SGD is realized as a hybrid semiconductor detector system which consists of silicon and CdTe (cadmium telluride) sensors. Good energy resolution is afforded by semiconductor sensors, and it results in good background rejection capability due to better constraints on Compton kinematics. Utilization of Compton kinematics also makes the SGD sensitive to the gamma-ray polarization, opening up a new window to study properties of gamma-ray emission processes. In this paper, we will present the detailed design of the SGD and the results of the final prototype developments and evaluations. Moreover, we will also present expected performance based on the measurements with prototypes.

    Original languageEnglish
    Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
    Volume8443
    DOIs
    Publication statusPublished - 2012
    EventSpace Telescopes and Instrumentation 2012: Ultraviolet to Gamma Ray - Amsterdam
    Duration: 2012 Jul 12012 Jul 6

    Other

    OtherSpace Telescopes and Instrumentation 2012: Ultraviolet to Gamma Ray
    CityAmsterdam
    Period12/7/112/7/6

    Fingerprint

    Gamma Rays
    Gamma rays
    Detector
    gamma rays
    Detectors
    detectors
    Kinematics
    Energy
    kinematics
    Semiconductors
    Camera
    Cameras
    cameras
    prototypes
    Prototype
    Cadmium telluride
    Semiconductor detectors
    X rays
    Hard X-ray
    Sensor

    Keywords

    • CdTe
    • Compton telescope
    • Gamma-ray
    • Polarimeter
    • Semiconductor detector
    • Silicon Detector

    ASJC Scopus subject areas

    • Applied Mathematics
    • Computer Science Applications
    • Electrical and Electronic Engineering
    • Electronic, Optical and Magnetic Materials
    • Condensed Matter Physics

    Cite this

    Watanabe, S., Tajima, H., Fukazawa, Y., Blandford, R., Enoto, T., Kataoka, J., ... Yuasa, T. (2012). Soft gamma-ray detector for the ASTRO-H mission. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 8443). [844326] https://doi.org/10.1117/12.925977

    Soft gamma-ray detector for the ASTRO-H mission. / Watanabe, Shin; Tajima, Hiroyasu; Fukazawa, Yasushi; Blandford, Roger; Enoto, Teruaki; Kataoka, Jun; Kawaharada, Madoka; Kokubun, Motohide; Laurent, Philippe; Lebrun, François; Limousin, Olivier; Madejski, Greg; Makishima, Kazuo; Mizuno, Tsunefumi; Nakamori, Takeshi; Nakazawa, Kazuhiro; Mori, Kunishiro; Odaka, Hirokazu; Ohno, Masanori; Ohta, Masayuki; Sato, Goro; Sato, Rie; Takeda, Shin'ichiro; Takahashi, Hiromitsu; Takahashi, Tadayuk; Tanaka, Takaaki; Tashiro, Makoto; Terada, Yukikatsu; Uchiyama, Hideki; Uchiyama, Yasunobu; Yamada, Shinya; Yatsu, Yoichi; Yonetoku, Daisuke; Yuasa, Takayuki.

    Proceedings of SPIE - The International Society for Optical Engineering. Vol. 8443 2012. 844326.

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Watanabe, S, Tajima, H, Fukazawa, Y, Blandford, R, Enoto, T, Kataoka, J, Kawaharada, M, Kokubun, M, Laurent, P, Lebrun, F, Limousin, O, Madejski, G, Makishima, K, Mizuno, T, Nakamori, T, Nakazawa, K, Mori, K, Odaka, H, Ohno, M, Ohta, M, Sato, G, Sato, R, Takeda, S, Takahashi, H, Takahashi, T, Tanaka, T, Tashiro, M, Terada, Y, Uchiyama, H, Uchiyama, Y, Yamada, S, Yatsu, Y, Yonetoku, D & Yuasa, T 2012, Soft gamma-ray detector for the ASTRO-H mission. in Proceedings of SPIE - The International Society for Optical Engineering. vol. 8443, 844326, Space Telescopes and Instrumentation 2012: Ultraviolet to Gamma Ray, Amsterdam, 12/7/1. https://doi.org/10.1117/12.925977
    Watanabe S, Tajima H, Fukazawa Y, Blandford R, Enoto T, Kataoka J et al. Soft gamma-ray detector for the ASTRO-H mission. In Proceedings of SPIE - The International Society for Optical Engineering. Vol. 8443. 2012. 844326 https://doi.org/10.1117/12.925977
    Watanabe, Shin ; Tajima, Hiroyasu ; Fukazawa, Yasushi ; Blandford, Roger ; Enoto, Teruaki ; Kataoka, Jun ; Kawaharada, Madoka ; Kokubun, Motohide ; Laurent, Philippe ; Lebrun, François ; Limousin, Olivier ; Madejski, Greg ; Makishima, Kazuo ; Mizuno, Tsunefumi ; Nakamori, Takeshi ; Nakazawa, Kazuhiro ; Mori, Kunishiro ; Odaka, Hirokazu ; Ohno, Masanori ; Ohta, Masayuki ; Sato, Goro ; Sato, Rie ; Takeda, Shin'ichiro ; Takahashi, Hiromitsu ; Takahashi, Tadayuk ; Tanaka, Takaaki ; Tashiro, Makoto ; Terada, Yukikatsu ; Uchiyama, Hideki ; Uchiyama, Yasunobu ; Yamada, Shinya ; Yatsu, Yoichi ; Yonetoku, Daisuke ; Yuasa, Takayuki. / Soft gamma-ray detector for the ASTRO-H mission. Proceedings of SPIE - The International Society for Optical Engineering. Vol. 8443 2012.
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    abstract = "ASTRO-H is the next generation JAXA X-ray satellite, intended to carry instruments with broad energy coverage and exquisite energy resolution. The Soft Gamma-ray Detector (SGD) is one of ASTRO-H instruments and will feature wide energy band (60-600 keV) at a background level 10 times better than the current instruments on orbit. The SGD is complimentary to ASTRO-H's Hard X-ray Imager covering the energy range of 5-80 keV. The SGD achieves low background by combining a Compton camera scheme with a narrow field-of-view active shield where Compton kinematics is utilized to reject backgrounds. The Compton camera in the SGD is realized as a hybrid semiconductor detector system which consists of silicon and CdTe (cadmium telluride) sensors. Good energy resolution is afforded by semiconductor sensors, and it results in good background rejection capability due to better constraints on Compton kinematics. Utilization of Compton kinematics also makes the SGD sensitive to the gamma-ray polarization, opening up a new window to study properties of gamma-ray emission processes. In this paper, we will present the detailed design of the SGD and the results of the final prototype developments and evaluations. Moreover, we will also present expected performance based on the measurements with prototypes.",
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    AU - Enoto, Teruaki

    AU - Kataoka, Jun

    AU - Kawaharada, Madoka

    AU - Kokubun, Motohide

    AU - Laurent, Philippe

    AU - Lebrun, François

    AU - Limousin, Olivier

    AU - Madejski, Greg

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    AU - Mizuno, Tsunefumi

    AU - Nakamori, Takeshi

    AU - Nakazawa, Kazuhiro

    AU - Mori, Kunishiro

    AU - Odaka, Hirokazu

    AU - Ohno, Masanori

    AU - Ohta, Masayuki

    AU - Sato, Goro

    AU - Sato, Rie

    AU - Takeda, Shin'ichiro

    AU - Takahashi, Hiromitsu

    AU - Takahashi, Tadayuk

    AU - Tanaka, Takaaki

    AU - Tashiro, Makoto

    AU - Terada, Yukikatsu

    AU - Uchiyama, Hideki

    AU - Uchiyama, Yasunobu

    AU - Yamada, Shinya

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    N2 - ASTRO-H is the next generation JAXA X-ray satellite, intended to carry instruments with broad energy coverage and exquisite energy resolution. The Soft Gamma-ray Detector (SGD) is one of ASTRO-H instruments and will feature wide energy band (60-600 keV) at a background level 10 times better than the current instruments on orbit. The SGD is complimentary to ASTRO-H's Hard X-ray Imager covering the energy range of 5-80 keV. The SGD achieves low background by combining a Compton camera scheme with a narrow field-of-view active shield where Compton kinematics is utilized to reject backgrounds. The Compton camera in the SGD is realized as a hybrid semiconductor detector system which consists of silicon and CdTe (cadmium telluride) sensors. Good energy resolution is afforded by semiconductor sensors, and it results in good background rejection capability due to better constraints on Compton kinematics. Utilization of Compton kinematics also makes the SGD sensitive to the gamma-ray polarization, opening up a new window to study properties of gamma-ray emission processes. In this paper, we will present the detailed design of the SGD and the results of the final prototype developments and evaluations. Moreover, we will also present expected performance based on the measurements with prototypes.

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    KW - Polarimeter

    KW - Semiconductor detector

    KW - Silicon Detector

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