The Hard X-ray modulation Telescope (HXMT) Mission
The Hard X-ray modulation Telescope (HXMT) Mission
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发表时间：
2009-02
期刊：
影响因子：
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通讯作者：
F. Lu;Shu Zhang;Bobing Wu;Yong Chen;Xue-lei Cao;Zhi Zhang;Jing-kang Deng;Shuang-Nan Zhang;Tipei Li
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文献类型：
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作者：
F. Lu;Shu Zhang;Bobing Wu;Yong Chen;Xue-lei Cao;Zhi Zhang;Jing-kang Deng;Shuang-Nan Zhang;Tipei Li
HXMT使命概念包括一个板条准直硬X射线探测器组件，灵敏度在20~250 keV，收集面积约为5000 cm 2。HXMT基于近年来发展起来的直接解调重建技术，主要致力于实现高灵敏度和高空间分辨率的硬X射线全天空成像测量。它还可以用来对X射线源进行定点观测，以详细研究其光谱和时间特性。HXMT的主探测器由18个面积为283.5cm ~ 2、视场为5.7°× 1.1°（FWHM）的圆柱形NaI（T_1）/CsI（Na）组件组成。1994年采用直接解调法，其空间分辨率和定位精度分别为5′和1′，2000年其可行性和技术论证研究被国家重点基础研究计划项目立项。2005年10月，该项目进入全面设计阶段，并被列为2010年左右第一颗专用天文卫星的候选卫星。我们现在还在考虑为这颗卫星安装次级低能仪器。
The HXMT mission concept consists of a slat-collimated hard X-ray detector assembly sensitive in 20～250 keV with a collection area of about 5000 cm2. Based on the reconstruction technique by direct demodulation developed in recent years, HXMT is mainly devoted to performing a hard X-ray all-sky imaging survey with both high sensitivity and high spatial resolution. It can also be used to make pointed observations of X-ray sources to study their spectroscopic and temporal properties in details. The main detector of HXMT consists of 18 individual cylindrical NaI(T1)/CsI(Na) phoswich modules, each with anarea of 283.5 cm2 and a field of view of 5.7°× 1.1° (FWHM). Its spatial resolution and position accuracy are 5′ and 1′ by using the direct demodulation in 1994, and in 2000 its feasibility and technical demonstration study was selected as a project under the Major State Basic Research Program of China. In October 2005, this project entered the full design phase and was listed as a candidate for the first dedicated astronomy satellite around 2010. We are now also considering secondary low energy instruments for this satellite.