Tracing X-rays through an L-shaped laterally graded multilayer mirror: a synchrotron application.
Tracing X-rays through an L-shaped laterally graded multilayer mirror: a synchrotron application.
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通过 L 形横向渐变多层镜追踪 X 射线：同步加速器应用。
DOI：
10.1107/s0909049510004383
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发表时间：
2010
影响因子：
2.5
通讯作者：
Yong Q. Cai
中科院分区：
文献类型：
--
作者：
M. G. Honnicke;Xianrong Huang;J. Keister;C. N. Kodituwakku;Yong Q. Cai
提出了一种用于同步加速器应用的L形(嵌套镜或Montel Kirkpatrick-Baez镜)横向梯度多层膜反射镜追踪X射线的理论模型。该模型包括源参数(尺寸和发散度)、镜面形状(抛物面和椭圆形)、多层膜参数(反射率，取决于膜的材料、厚度和层数)和图形误差(斜率误差、粗糙度、层厚波动增量/d和拐角缺陷)。利用该模型对国家同步辐射光源II超高分辨率非弹性X射线散射仪分析系统的多层膜反射镜的性能进行了研究，给出了计算结果并进行了讨论。
A theoretical model to trace X-rays through an L-shaped (nested or Montel Kirkpatrick-Baez mirrors) laterally graded multilayer mirror to be used in a synchrotron application is presented. The model includes source parameters (size and divergence), mirror figure (parabolic and elliptic), multilayer parameters (reflectivity, which depends on layer material, thickness and number of layers) and figure errors (slope error, roughness, layer thickness fluctuation Deltad/d and imperfection in the corners). The model was implemented through MATLAB/OCTAVE scripts, and was employed to study the performance of a multilayer mirror designed for the analyzer system of an ultrahigh-resolution inelastic X-ray scattering spectrometer at National Synchrotron Light Source II. The results are presented and discussed.