SWIFT XRT point spread function measured at the Panter end-to-end tests
SWIFT XRT point spread function measured at the Panter end-to-end tests
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在 Panter 端到端测试中测得的 SWIFT XRT 点扩散函数
DOI：
10.1117/12.504857
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发表时间：
2004
期刊：
影响因子：
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通讯作者：
A. Wells
中科院分区：
文献类型：
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作者：
A. Moretti;S. Campana;G. Tagliaferri;A. Abbey;R. Ambrosi;L. Angelini;A. Beardmore;H. Brauninger;W. Burkert;D. Burrows;M. Capalbi;G. Chincarini;O. Citterio;G. Cusumano;M. Freyberg;P. Giommi;G. Hartner;J. Hill;K. Mori;D. Morris;K. Mukerjee;J. Nousek;J. Osborne;A. Short;F. Tamburelli;D. Watson;A. Wells
SWIFT X射线望远镜（XRT）的设计目的是在0.2 - 10千电子伏的能带内对伽马射线爆发及其余辉的X射线发射进行天体测量、光谱学和光度学观测。在这里，我们报告了在Panter X射线束线设施的端到端校准活动期间测量的SWIFT XRT点扩散函数（PSF）的分析结果。该分析包括对轴上和轴外PSF的研究。我们将实验室结果与光线跟踪软件和作为单个单元测试的反射镜模块的预期结果进行比较。我们表明，测量的HEW符合使命的科学要求。在校准数据的基础上，我们建立了一个分析模型，该模型能够再现作为能量和探测器内位置的函数的PSF。
The SWIFT X-ray Telescope (XRT) is designed to make astrometric, spectroscopic and photometric observations of the X-ray emission from Gamma-ray bursts and their afterglows, in the energy band 0.2 - 10 keV. Here we report the results of the analysis of SWIFT XRT Point Spread Function (PSF) as measured during the end-to-end calibration campaign at the Panter X-Ray beam line facility. The analysis comprises the study of the PSF both on-axis and off-axis. We compare the laboratory results with the expectations from the ray-tracing software and from the mirror module tested as a single unit. We show that the measured HEW meets the mission scientific requirements. On the basis of the calibration data we build an analytical model which is able to reproduce the PSF as a function of the energy and the position within the detector.