The soft gamma-ray detector (SGD) onboard ASTRO-H
The soft gamma-ray detector (SGD) onboard ASTRO-H
复制标题
ASTRO-H 上的软伽马射线探测器 (SGD)
DOI：
10.1117/12.2231962
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发表时间：
2016
期刊：
影响因子：
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通讯作者：
et al.
中科院分区：
文献类型：
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作者：
Shin Watanabe;Yuto Ichinohe (9/42);et al.
软伽马射线探测器 (SGD) 是 ASTRO-H (Hitomi) 上的科学仪器之一，具有 60{600 keV 的宽能带和低背景。 SGD 是一种具有“窄视场”康普顿相机新颖概念的仪器，其中利用康普顿运动学来拒绝与主动屏蔽定义的视场不一致的背景。经过几年的发展，飞行硬件已经制造出来，并进行了子系统测试和卫星系统测试。在2016年2月17日成功发射ASTRO-H（Hitomi）以及卫星和SGD在轨调试的关键阶段操作后，SGD操作于2016年3月24日转入名义观测模式。SGD的康普顿相机和BGO-APD防护罩按照设计正常工作。 2016年3月25日进行蟹状星云观测，成功获取观测数据。
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.