The nuclear compton telescope (NCT): Scientific goals and expected sensitivity

被引:16
作者
Chang, Hsiang-Kuang [1 ,2 ]
Boggs, Steven [3 ,4 ]
Chang, Yuan-Hann [5 ]
机构
[1] Natl Tsing Hua Univ, Dept Phys, Hsinchu 30013, Taiwan
[2] Natl Tsing Hua Univ, Inst Astron, Hsinchu 30013, Taiwan
[3] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA
[4] Univ Calif Berkeley, Space Sci Lab, Berkeley, CA 94720 USA
[5] Natl Cent Univ, Dept Phys, Jhongli 32001, Taiwan
基金
美国国家航空航天局;
关键词
gamma-ray telescopes; instrumentation;
D O I
10.1016/j.asr.2007.07.012
中图分类号
V [航空、航天];
学科分类号
08 ; 0825 ;
摘要
The Nuclear Compton Telescope (NCT) is a balloon-borne telescope designed to study astrophysical sources of gamma-ray emission with high spectral resolution, moderate angular resolution, and novel sensitivity to gamma-ray polarization. The heart of NCT is an array of cross-strip germanium detectors, each of 15-mm thickness and 5400mm(2) active area, with full 3D position resolution <2 mm(3). NCT will perform Compton imaging in the 0.2-10 MeV gamma-ray band. We are currently planning a 12-detector long duration balloon flight of the NCT instrument from Australia in December 2008. NCT is the prototype of a future satellite mission, which will have a coded mask on top of a larger detector array to carry out imaging in the 20-100 keV X-ray band. This paper describes the scientific goals, as well as the detector design, simulated performance and current status of the project. NCT is a joint effort of several institutions in the US and in Taiwan. (c) 2007 COSPAR. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码:1281 / 1287
页数:7
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