Uniform and graded multilayers as x-ray optical elements.
Uniform and graded multilayers as x-ray optical elements.
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作为 X 射线光学元件的均匀分级多层膜。
DOI：
10.1364/ao.22.001241
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发表时间：
1983
期刊：
影响因子：
1.9
通讯作者：
P. Lee
中科院分区：
文献类型：
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作者：
P. Lee
详细比较了均匀多层膜和梯度多层膜作为软X射线单色器和垂直入射收集器的性能。特别地，计算了平面深度梯度多层膜和横向梯度多层膜对Al K(α)辐射的响应，并与相应的均匀多层膜进行了比较。此外，本文还计算了梯度均匀多层膜作为垂直入射X射线收集器的效率，计算了抛物面反射器调谐到O_K(α)线的有效面积为23.7A。最后，计算了均匀多层膜在30-60A范围内四条强太阳辐射线的有效面积。垂直入射多层膜反射镜非常适合于光谱日光仪类型的应用。
A detailed comparison of the performance of uniform and graded multilayers as soft x-ray monochromators and normal incidence collectors has been made. In particular, the responses of flat depth-, and laterally graded multilayers to Al K(alpha) radiation, lambda = 8.34 A, have been computed and compared with the corresponding uniform multilayer. Furthermore, the efficiency of graded and uniform multilayers as normal incidence x-ray collectors has been calculated in terms of effective areas for parabolic reflectors tuned to the O K(alpha) line, lambda = 23.7 A. Finally, the effective areas of four strong solar emission lines in the 30-60 A region have been computed for uniform multilayers. Normal incidence multilayer mirrors are well suited for spectroheliograph type of applications.