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arXiv · 1307.1462

Time-delayed beam splitting with energy separation of x-ray channels

Yuri P. Stetsko·Yuri V. Shvyd'ko·G. Brian Stephenson
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Abstract

We introduce a time-delayed beam splitting method based on the energy separation of x-ray photon beams. It is implemented and theoretically substantiated on an example of an x-ray optical scheme similar to that of the classical Michelson interferometer. The splitter/mixer uses Bragg-case diffraction from a thin diamond crystal. Another two diamond crystals are used as back-reflectors. For energy separation the back-reflectors are set at slightly different temperatures and angular deviations from exact backscattering. Because of energy separation and a minimal number (three) of optical elements, the split-delay line has high efficiency and is simple to operate. Due to the high transparency of diamond crystal, the split-delay line can be used in a beam sharing mode at x-ray free-electron laser facilities. The delay line can be made more compact by adding a fourth crystal.

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Yuri P. Stetsko, Yuri V. Shvyd'ko, G. Brian Stephenson. 2013-07-04. Time-delayed beam splitting with energy separation of x-ray channels. https://doi.org/10.1063/1.4826251

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