Development and verification of signal processing system of BGO active shield onboard Astro-H

Masanori Ohno; Shin'Ya Tokuda; Takafumi Kawano; Shunya Furui; Ikumi Edahiro; Hiromitsu Takahashi; Kunihiro Goto; Yasushi Fukazawa; Hiroaki Murakami; Syogo Kobayashi; Soki Sakurai; Makoto Sasano; Shunsuke Torii; Toshio Nakano; Ko Ono; Kazuma Miyake; Terukazu Nishida; Kazuhiro Nakazawa; Kazuo Makishima; Kouichi Hagino; Takayuki Yuasa; Hirokazu Odaka; Rie Sato; Shin Watanabe; Motohide Kokubun; Goro Sato; Jun Kataoka; Tatsuhiko Saito; Kazutaka Yamaoka; Hiroyasu Tajima; Yoichi Yatsu; Takeshi Nakamori; Hideki Uchiyama; Daisuke Yonetoku

doi:10.1117/12.2055676

Development and verification of signal processing system of BGO active shield onboard Astro-H

Masanori Ohno^*, Shin'Ya Tokuda, Takafumi Kawano, Shunya Furui, Ikumi Edahiro, Hiromitsu Takahashi, Kunihiro Goto, Yasushi Fukazawa, Hiroaki Murakami, Syogo Kobayashi, Soki Sakurai, Makoto Sasano, Shunsuke Torii, Toshio Nakano, Ko Ono, Kazuma Miyake, Terukazu Nishida, Kazuhiro Nakazawa, Kazuo Makishima, Kouichi HaginoTakayuki Yuasa, Hirokazu Odaka, Rie Sato, Shin Watanabe, Motohide Kokubun, Goro Sato, Jun Kataoka, Tatsuhiko Saito, Kazutaka Yamaoka, Hiroyasu Tajima, Yoichi Yatsu, Takeshi Nakamori, Hideki Uchiyama, Daisuke Yonetoku

^*この研究の対応する著者

研究成果: Conference contribution

8 被引用数 (Scopus)

抄録

The hard X-ray imager (HXI) and soft gamma-ray detector (SGD) onboard Astro-H observe astronomical objects with high sensitivity in the hard X-ray (5-80 keV) and soft gamma-ray (40-600 keV) energy bands. To achieve this high sensitivity, background rejection is essential, and these detectors are surrounded by large and thick bismuth germinate scintillators as an active shield. We have developed adequate trigger logic for both the HXI and SGD to process signals from main detector and BGO shield simultaneously and then we optimized the trigger delay and width, with consideration of the trigger latch efficiency. The shield detector system performs well, even after it is assembled as the HXI sensor. The energy threshold maintains the same level as that observed during the prototype development phase, and the experimental room background level of the main detector is successfully reduced by our optimized trigger timing.

本文言語	English
ホスト出版物のタイトル	Space Telescopes and Instrumentation 2014
ホスト出版物のサブタイトル	Ultraviolet to Gamma Ray
編集者	Tadayuki Takahashi, Jan-Willem A. den Herder, Mark Bautz
出版社	SPIE
ISBN（電子版）	9780819496126
DOI	https://doi.org/10.1117/12.2055676
出版ステータス	Published - 2014
イベント	Space Telescopes and Instrumentation 2014: Ultraviolet to Gamma Ray - Montreal, Canada 継続期間: 2014 6月 22 → 2014 6月 26

出版物シリーズ

名前	Proceedings of SPIE - The International Society for Optical Engineering
巻	9144
ISSN（印刷版）	0277-786X
ISSN（電子版）	1996-756X

Conference

Conference	Space Telescopes and Instrumentation 2014: Ultraviolet to Gamma Ray
国/地域	Canada
City	Montreal
Period	14/6/22 → 14/6/26

ASJC Scopus subject areas

電子材料、光学材料、および磁性材料
凝縮系物理学
コンピュータサイエンスの応用
応用数学
電子工学および電気工学

文献へのアクセス

10.1117/12.2055676

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引用スタイル

Ohno, M., Tokuda, SY., Kawano, T., Furui, S., Edahiro, I., Takahashi, H., Goto, K., Fukazawa, Y., Murakami, H., Kobayashi, S., Sakurai, S., Sasano, M., Torii, S., Nakano, T., Ono, K., Miyake, K., Nishida, T., Nakazawa, K., Makishima, K., ... Yonetoku, D. (2014). Development and verification of signal processing system of BGO active shield onboard Astro-H. In T. Takahashi, J-W. A. den Herder, & M. Bautz (Eds.), Space Telescopes and Instrumentation 2014: Ultraviolet to Gamma Ray [91445G] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 9144). SPIE. https://doi.org/10.1117/12.2055676

Development and verification of signal processing system of BGO active shield onboard Astro-H. / Ohno, Masanori; Tokuda, Shin'Ya; Kawano, Takafumi その他.

Space Telescopes and Instrumentation 2014: Ultraviolet to Gamma Ray. ed. / Tadayuki Takahashi; Jan-Willem A. den Herder; Mark Bautz. SPIE, 2014. 91445G (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 9144).

研究成果: Conference contribution

Ohno, M, Tokuda, SY, Kawano, T, Furui, S, Edahiro, I, Takahashi, H, Goto, K, Fukazawa, Y, Murakami, H, Kobayashi, S, Sakurai, S, Sasano, M, Torii, S, Nakano, T, Ono, K, Miyake, K, Nishida, T, Nakazawa, K, Makishima, K, Hagino, K, Yuasa, T, Odaka, H, Sato, R, Watanabe, S, Kokubun, M, Sato, G, Kataoka, J, Saito, T, Yamaoka, K, Tajima, H, Yatsu, Y, Nakamori, T, Uchiyama, H & Yonetoku, D 2014, Development and verification of signal processing system of BGO active shield onboard Astro-H. in T Takahashi, J-WA den Herder & M Bautz (eds), Space Telescopes and Instrumentation 2014: Ultraviolet to Gamma Ray., 91445G, Proceedings of SPIE - The International Society for Optical Engineering, vol. 9144, SPIE, Space Telescopes and Instrumentation 2014: Ultraviolet to Gamma Ray, Montreal, Canada, 14/6/22. https://doi.org/10.1117/12.2055676

Ohno M, Tokuda SY, Kawano T, Furui S, Edahiro I, Takahashi H その他. Development and verification of signal processing system of BGO active shield onboard Astro-H. In Takahashi T, den Herder J-WA, Bautz M, editors, Space Telescopes and Instrumentation 2014: Ultraviolet to Gamma Ray. SPIE. 2014. 91445G. (Proceedings of SPIE - The International Society for Optical Engineering). https://doi.org/10.1117/12.2055676

Ohno, Masanori ; Tokuda, Shin'Ya ; Kawano, Takafumi その他. / Development and verification of signal processing system of BGO active shield onboard Astro-H. Space Telescopes and Instrumentation 2014: Ultraviolet to Gamma Ray. editor / Tadayuki Takahashi ; Jan-Willem A. den Herder ; Mark Bautz. SPIE, 2014. (Proceedings of SPIE - The International Society for Optical Engineering).

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abstract = "The hard X-ray imager (HXI) and soft gamma-ray detector (SGD) onboard Astro-H observe astronomical objects with high sensitivity in the hard X-ray (5-80 keV) and soft gamma-ray (40-600 keV) energy bands. To achieve this high sensitivity, background rejection is essential, and these detectors are surrounded by large and thick bismuth germinate scintillators as an active shield. We have developed adequate trigger logic for both the HXI and SGD to process signals from main detector and BGO shield simultaneously and then we optimized the trigger delay and width, with consideration of the trigger latch efficiency. The shield detector system performs well, even after it is assembled as the HXI sensor. The energy threshold maintains the same level as that observed during the prototype development phase, and the experimental room background level of the main detector is successfully reduced by our optimized trigger timing.",

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AU - Edahiro, Ikumi

AU - Takahashi, Hiromitsu

AU - Goto, Kunihiro

AU - Fukazawa, Yasushi

AU - Murakami, Hiroaki

AU - Kobayashi, Syogo

AU - Sakurai, Soki

AU - Sasano, Makoto

AU - Torii, Shunsuke

AU - Nakano, Toshio

AU - Ono, Ko

AU - Miyake, Kazuma

AU - Nishida, Terukazu

AU - Nakazawa, Kazuhiro

AU - Makishima, Kazuo

AU - Hagino, Kouichi

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AU - Odaka, Hirokazu

AU - Sato, Rie

AU - Watanabe, Shin

AU - Kokubun, Motohide

AU - Sato, Goro

AU - Kataoka, Jun

AU - Saito, Tatsuhiko

AU - Yamaoka, Kazutaka

AU - Tajima, Hiroyasu

AU - Yatsu, Yoichi

AU - Nakamori, Takeshi

AU - Uchiyama, Hideki

AU - Yonetoku, Daisuke

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A2 - den Herder, Jan-Willem A.

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PB - SPIE

T2 - Space Telescopes and Instrumentation 2014: Ultraviolet to Gamma Ray

Y2 - 22 June 2014 through 26 June 2014

ER -

Development and verification of signal processing system of BGO active shield onboard Astro-H

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出版物シリーズ

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