Surface Heating in a Lacquer-Coated Mirror Irradiated with Undulator Light,
STANFORD UNIV CA STANFORD SYNCHROTRON RADIATION LAB
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An ellipsoidal copper mirror has been diamond turned to provide strong demagnification of synchrotron light. Its surface curvature varies too rapidly over its extend for conventional polishing techniques to be applicable. Surface smoothing has been attempted in this case by applying lacquer to the surface and then metallizing it for operation in the soft x ray range. This paper describes the results obtained with this mirror in focussing 1 keV undulator light, surface damage to the lacquer, and the results of some diagnostics done on the mirror surface in the visible regime.