Suvorov Alexey, Cunsolo Alessandro, Chubar Oleg, Cai Yong Q
Opt Express. 2015 Nov 30;23(24):31607-18. doi: 10.1364/OE.23.031607.
A further development of a focusing monochromator concept for X-ray energy resolution of 0.1 meV and below is presented. Theoretical analysis of several optical layouts based on this concept was supported by numerical simulations performed in the "Synchrotron Radiation Workshop" software package using the physical-optics approach and careful modeling of partially-coherent synchrotron (undulator) radiation. Along with the energy resolution, the spectral shape of the energy resolution function was investigated. It was shown that under certain conditions the decay of the resolution function tails can be faster than that of the Gaussian function.
本文介绍了一种用于X射线能量分辨率达到0.1毫电子伏特及以下的聚焦单色仪概念的进一步发展。基于该概念的几种光学布局的理论分析得到了在“同步辐射工作室”软件包中使用物理光学方法进行的数值模拟以及对部分相干同步加速器(波荡器)辐射的精细建模的支持。除了能量分辨率外,还研究了能量分辨率函数的光谱形状。结果表明,在某些条件下,分辨率函数尾部的衰减可能比高斯函数更快。