节点文献
HXMT卫星地面样机成像实验(英文)
Imaging Test Setup of HXMT
【摘要】 硬X射线调制望远镜(HXMT)致力于实现硬X射线能段的高灵敏度巡天.HXMT地面样机已在中国科学院高能物理研究所粒子天体物理重点实验室建成.它包括18个栅条准直的NaI(Tl)/CsI(Na)复合晶体探测器, 总有效探测面积为5000cm2.探测器工作在20-250keV,视场范围5.7°×5.7°通过近距离放射源成像实验和直接解调成像方法的使用,地面样机能够达到2’点源定位精度和5’角分辨率(FWHM).
【Abstract】 The imaging test setup for the Hard X-ray Modulation Telescope (HXMT) mission was built to give verification of detector performance and the imaging properties of HXMT. It consists of 18 slat-collimated NaI(Tl)/CsI(Na) phoswich detectors with a total collective area of 5000cm2. Several experiments were implemented with radioactive sources 15m away from the detector plane. We obtained a point-source location accuracy of 2’ and an angular resolution of <5’ using direct demodulation method.
【基金】 国家重点基础研究发展规划项目(G2000077600)国家自然科学基金(10327301,10473011)资助~~
- 【文献出处】 高能物理与核物理 ,High Energy Physics and Nuclear Physics , 编辑部邮箱 ,2006年05期
- 【分类号】P111.4
- 【被引频次】5
- 【下载频次】88