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Wide-angle straylight measurements of the XMM (x-ray multimirror mission) telescopes

机译：XMM（X射线多镜任务）望远镜的广角杂散光测量

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Abstract: The high throughput x-ray spectroscopy mission XMM is the second 'Cornerstone' project in the ESA long term Programme for Space Science. This observatory has at its heart three heavily nested Wolter I grazing incidence x-ray telescope. The telescopes are equipped with non-dispersive spectroscopic imaging instruments and medium resolution dispersive spectroscopic instruments. Because of the sensitivity of the XMM instruments x-ray detectors in the visible wavelength range, a high suppression of the visible radiation emitted from out-of-field sources must be ensured. The straylight reduction capability is quantified by the PST. The experimental verification of the PST on the XMM flight model mirror modules for off-axis angles between 1 degree and 85 degrees is presented in this paper. For the first time a straylight test of a compete telescope was performed in air measuring the telescope PST over a range of 9 orders of magnitude. !2
机译：摘要：高通量X射线光谱任务XMM是ESA太空科学长期计划中的第二个“ Cornerstone”项目。这个天文台的中心有三个重嵌套的Wolter I掠入射X射线望远镜。望远镜配备有非色散光谱成像仪器和中分辨率色散光谱仪器。由于XMM仪器X射线探测器在可见光波长范围内的灵敏度，因此必须确保高度抑制从场外源发出的可见辐射。减少杂散光的能力由PST量化。本文提出了XMM飞行模型后视镜模块上PST在1度到85度偏轴角度的实验验证。第一次在空气测量望远镜PST的9个数量级范围内对竞争望远镜进行了杂散光测试。 ！2

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