Projection x-ray microscopy beamline mirror cooling and optomechanical analysis

Ming-Ying Hsu; Gung-Chian Yin; Bo-Yi Chen; Chien-Yu Lee; Han-Chao Chang

doi:10.1117/12.2318777

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17 September 2018 Projection x-ray microscopy beamline mirror cooling and optomechanical analysis

Ming-Ying Hsu, Gung-Chian Yin, Bo-Yi Chen, Chien-Yu Lee, Han-Chao Chang

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Proceedings Volume 10743, Optical Modeling and Performance Predictions X; 107430D (2018) https://doi.org/10.1117/12.2318777
Event: SPIE Optical Engineering + Applications, 2018, San Diego, California, United States

Abstract

The thermal transfer issue is an important problem associated with the synchrotron radiation optical system. During projection x-ray microscopy (PXM), x-ray light comes from the wiggler insert parts. The vertical collimating mirror (VCM) absorbs 40 W of energy on the mirror surface. The mirror length is 1000 mm, and its width is 87 mm. Here we apply an x-ray optical simulation software, named SHADOW, as well as the finite element method (FEM) software, ANSYS®, to calculate the surface thermal deformation at various thicknesses of VCM. The FEM software calculates the mirror surface deformation from heat absorption, and the surface deformation can be fit by the B-spline curve. The thermal deformation fitting results can be fed back to the SHADOW software and be used to evaluate how mirror thermal deformation affects the optical system performance.

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Ming-Ying Hsu, Gung-Chian Yin, Bo-Yi Chen, Chien-Yu Lee, and Han-Chao Chang "Projection x-ray microscopy beamline mirror cooling and optomechanical analysis", Proc. SPIE 10743, Optical Modeling and Performance Predictions X, 107430D (17 September 2018); https://doi.org/10.1117/12.2318777

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