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 MoriTakeshi Nakamori, Toshio Nakano, Kazuhiro Nakazawa, Hirofumi 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

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

17 Citations (Scopus)

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.

Original languageEnglish
Title of host publicationSpace Telescopes and Instrumentation 2016
Subtitle of host publicationUltraviolet to Gamma Ray
EditorsMarshall Bautz, Tadayuki Takahashi, Jan-Willem A. den Herder
PublisherSPIE
ISBN (Electronic)9781510601895
DOIs
Publication statusPublished - 2016 Jan 1
EventSpace Telescopes and Instrumentation 2016: Ultraviolet to Gamma Ray - Edinburgh, United Kingdom
Duration: 2016 Jun 262016 Jul 1

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume9905
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Other

OtherSpace Telescopes and Instrumentation 2016: Ultraviolet to Gamma Ray
CountryUnited Kingdom
CityEdinburgh
Period16/6/2616/7/1

Keywords

  • ASTRO-H(Hitomi)
  • BGO
  • CdTe
  • Compton Camera
  • Gamma-ray astronomy detectors
  • Polarimetry
  • Silicon radiation detectors

ASJC Scopus subject areas

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

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