Mosaic monochromator applications at CHESS

Park Atkinson Doing; Stefan Kycia; Qun Shen

doi:10.1117/12.332527

11 December 1998 Mosaic monochromator applications at CHESS

Park Atkinson Doing, Stefan Kycia, Qun Shen

Proceedings Volume 3448, Crystal and Multilayer Optics; (1998) https://doi.org/10.1117/12.332527
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1998, San Diego, CA, United States

Abstract

A double bounce monochromator with a roughened Si(111) first crystal and a sagitally focusing roughened Si(111) second crystal was tested at a Cornell High Energy Synchrotron Source (CHESS) bending magnet line. Flux and energy width measurements were taken and comparisons are made with measurements from a perfect Si(111) monochromator (also sagitally focused) as well as calculations for flux and energy width for a source-matched monochromator and a mosaic monochromator. For the roughened monochromator at 17 keV, the flux was greater by a factor of 7.5 while the energy spread was only increased by a factor of 2, as compared to the perfect monochromator. These measured increases are consistent with predicted values for source-matched optics. Other advantages of mosaic monochromators in addition to source- matching are discussed.

Citation Download Citation

Park Atkinson Doing, Stefan Kycia, and Qun Shen "Mosaic monochromator applications at CHESS", Proc. SPIE 3448, Crystal and Multilayer Optics, (11 December 1998); https://doi.org/10.1117/12.332527

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