The Gamma-Ray Arc-Minute Imaging System (GRATIS): Mechanical Design And Expected Performance
The Gamma-Ray Arc-Minute Imaging System (GRATIS): Mechanical Design And Expected Performance
复制标题
伽马射线弧分成像系统（免费）：机械设计和预期性能
DOI：
10.1117/12.962592
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发表时间：
1989
期刊：
影响因子：
--
通讯作者：
S. Kahn
中科院分区：
文献类型：
--
作者：
M. Seiffert;P. Lubin;C. Hailey;K. Ziock;F. Harrison;S. Kahn
我们正在建造一个气球实验，GRATIS，它将在30 - 200千电子伏的能量带进行宇宙源的第一次弧分钟成像。用GRATIS进行的观测可以提供与高能天体物理学中的几个关键问题有关的数据，包括在星系团的软伽马射线谱中观察到的高能尾的物理过程，以及银河系中心伽马射线发射的扩散和点源成分的起源。本文详细讨论了科学动机，概述了实验，讨论了硬件组件的设计和构造的几个方面，给出了稳定平台的概述，并显示了预期的性能和灵敏度。
We are constructing a balloon experiment, GRATIS, which will perform the first arcminute imaging of cosmic sources in the 30 - 200 keV energy band. Observations conducted with GRATIS can provide data relevant to several key problems in high energy astrophysics including the physical processes responsible for the high energy tail observed in the soft gamma-ray spectra of clusters of galaxies and the origin of both the diffuse and point source components of the gamma-ray emission from the Galactic Center. This paper discusses the scientific motivations in more detail, outlines the experiment, discusses several aspects of the design and construction of hardware components, gives an overview of the stabilized platform, and shows the expected performance and sensitivity.