The soft gamma-ray detector (SGD) onboard ASTRO-H

Shin Watanabe; Hiroyasu Tajima; Yasushi Fukazawa; Roger Blandford; Teruaki Enoto; Andrea Goldwurm; Kouichi Hagino; Katsuhiro Hayashi; Yuto Ichinohe; Jun Kataoka; Junichiro Katsuta; Takao Kitaguchi; Motohide Kokubun; Philippe Laurent; François Lebrun; Olivier Limousin; Grzegorz M. Madejski; Kazuo Makishima; Tsunefumi Mizuno; Kunishiro Mori; Takeshi Nakamori; Toshio Nakano; Kazuhiro Nakazawa; Hirofumu Noda; Hirokazu Odaka; Masanori Ohno; Masayuki Ohta; Shinya Saito; Goro Sato; Rie Sato; Shin'ichiro Takeda; Hiromitsu Takahashi; Tadayuki Takahashi; Takaaki Tanaka; Yasuyuki Tanaka; Yukikatsu Terada; Hideki Uchiyama; Yasunobu Uchiyama; Kazutaka Yamaoka; Yoichi Yatsu; Daisuke Yonetoku; Takayuki Yuasa

doi:10.1117/12.2231962

20 July 2016 The soft gamma-ray detector (SGD) onboard ASTRO-H

Shin Watanabe, Hiroyasu Tajima, Yasushi Fukazawa, Roger Blandford, Teruaki Enoto, Andrea Goldwurm, Kouichi Hagino, Katsuhiro Hayashi, Yuto Ichinohe, Jun Kataoka, Junichiro Katsuta, Takao Kitaguchi, Motohide Kokubun, Philippe Laurent, François Lebrun, Olivier Limousin, Grzegorz M. Madejski, Kazuo Makishima, Tsunefumi Mizuno, Kunishiro Mori, Takeshi Nakamori, Toshio Nakano, Kazuhiro Nakazawa, Hirofumu Noda, Hirokazu Odaka, Masanori Ohno, Masayuki Ohta, Shinya Saito, Goro Sato, Rie Sato, Shin'ichiro Takeda, Hiromitsu Takahashi, Tadayuki Takahashi, Takaaki Tanaka, Yasuyuki Tanaka, Yukikatsu Terada, Hideki Uchiyama, Yasunobu Uchiyama, Kazutaka Yamaoka, Yoichi Yatsu, Daisuke Yonetoku, Takayuki Yuasa

Author Affiliations +

Proceedings Volume 9905, Space Telescopes and Instrumentation 2016: Ultraviolet to Gamma Ray; 990513 (2016) https://doi.org/10.1117/12.2231962
Event: SPIE Astronomical Telescopes + Instrumentation, 2016, Edinburgh, United Kingdom

Abstract

The Soft Gamma-ray Detector (SGD) is one of science instruments onboard ASTRO-H (Hitomi) and features a wide energy band of 60{600 keV with low backgrounds. SGD is an instrument with a novel concept of "Narrow field-of-view" Compton camera where Compton kinematics is utilized to reject backgrounds which are inconsistent with the field-of-view defined by the active shield. After several years of developments, the flight hardware was fabricated and subjected to subsystem tests and satellite system tests. After a successful ASTRO-H (Hitomi) launch on February 17, 2016 and a critical phase operation of satellite and SGD in-orbit commissioning, the SGD operation was moved to the nominal observation mode on March 24, 2016. The Compton cameras and BGO-APD shields of SGD worked properly as designed. On March 25, 2016, the Crab nebula observation was performed, and, the observation data was successfully obtained.

Citation Download Citation

Shin Watanabe, Hiroyasu Tajima, Yasushi Fukazawa, Roger Blandford, Teruaki Enoto, Andrea Goldwurm, Kouichi Hagino, Katsuhiro Hayashi, Yuto Ichinohe, Jun Kataoka, Junichiro Katsuta, Takao Kitaguchi, Motohide Kokubun, Philippe Laurent, François Lebrun, Olivier Limousin, Grzegorz M. Madejski, Kazuo Makishima, Tsunefumi Mizuno, Kunishiro Mori, Takeshi Nakamori, Toshio Nakano, Kazuhiro Nakazawa, Hirofumu Noda, Hirokazu Odaka, Masanori Ohno, Masayuki Ohta, Shinya Saito, Goro Sato, Rie Sato, Shin'ichiro Takeda, Hiromitsu Takahashi, Tadayuki Takahashi, Takaaki Tanaka, Yasuyuki Tanaka, Yukikatsu Terada, Hideki Uchiyama, Yasunobu Uchiyama, Kazutaka Yamaoka, Yoichi Yatsu, Daisuke Yonetoku, and Takayuki Yuasa "The soft gamma-ray detector (SGD) onboard ASTRO-H", Proc. SPIE 9905, Space Telescopes and Instrumentation 2016: Ultraviolet to Gamma Ray, 990513 (20 July 2016); https://doi.org/10.1117/12.2231962

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