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首页> 外文会议>Conference on Optics for EUV, X-Ray, and Gamma-Ray Astronomy >A diffraction-limited dual-band X-ray telescope
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A diffraction-limited dual-band X-ray telescope

机译：衍射限制的双频带X射线望远镜

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摘要

We present an innovative X-ray telescope design for diffraction-limited imaging on the mas scale. The long focal distance scheme is based on dispersion-corrected Fresnel lenses made of Li and Be. Annular apertures with an outer diameter of 3.5 m permit simultaneously focused X-rays in two energy bands around 5 and 10 keV. Concentrated to focal spot sizes of- 1 mm, a photon throughput of ~ 1400 cm2 keV is achieved in the soft and hard band as well. With its partial spectroscopic capability, the device might be preferably suited for measurements of hardness ratios in X-ray emitting coronae of nearby stars and even disc-to-jet conversion mechanisms within AGN.
机译：我们为MAS规模提供了一种创新的X射线望远镜设计，用于衍射限制性成像。长焦距方案基于由Li的分散校正的菲涅耳透镜。外径为3.5米的环形孔同时聚焦在两个能带中约为5和10kev的两个能带中的X射线。浓缩至焦点尺寸为1mm，在柔软和硬带中实现了〜1400cm2 kev的光子通量。利用其局部光谱能力，该装置可以优选适用于附近恒星X射线发射核心的硬度比率，甚至在AGN内的尚未进入射流转换机制。

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