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Quantitative analysis of the effects of heat loading on an undulator beamline

机译：定量分析波动波线上热负荷的影响

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Abstract: With the help of several computer codes especially developed or adapted for this application, the energy losses in the individual components of a high resolution undulator beamline for BESSY II were quantitatively calculated and their affect on the performance of the beamline determined. The critical portion of the beamline, a Kirkpatrick-Baez system in front of the entrance slit, can be designed so as to withstand the deleterious effects of the heat loading with essentially no loss of intrinsic brightness of the source. The absorbed heat load profile has been determined in a dense grid on the mirror surfaces by taking the variation of the spectral power distribution from the undulator and the reflectivity of the surfaces into account. The influence of the angle of incidence on the first horizontally deflecting mirror as well as of a vertical aperture in front of the beamline has also been studied. !7
机译：摘要：借助专门为此应用开发或修改的几种计算机代码，定量计算了BESSY II高分辨率波荡器光束线各个组件中的能量损耗，并确定了它们对光束线性能的影响。可以设计光束线的关键部分，即入口狭缝前面的Kirkpatrick-Baez系统，以承受热负荷的有害影响，而基本上不会损失光源的固有亮度。通过考虑来自波荡器的光谱功率分布的变化和表面的反射率，已在镜面的密集网格中确定了吸收的热负荷曲线。还研究了入射角对第一水平偏转镜以及光束线前面的垂直孔径的影响。 ！7

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