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Proceedings Paper

Development of a hard x-ray split-delay system at the Linac Coherent Light Source
Author(s): Diling Zhu; Yanwen Sun; Donald W. Schafer; Hongliang Shi; Justin H. James; Karl L. Gumerlock; Ted O. Osier; Randy Whitney; Lin Zhang; Josep Nicolas; Brian Smith; Andrew H. Barada; Aymeric Robert
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Paper Abstract

The ability to split femtosecond free electron laser pulses and recombine them with a precisely adjustable delay has numerous scientific applications such as X-ray Photon Correlation Spectroscopy and X-ray pump X-ray probe measurements. A wavefront-splitting based hard X-ray split-delay system is currently under development at the Linac Coherent Light Source. The design configuration uses a series of Si(220) crystal reflections in the horizontal scattering geometry. It covers an energy range between 6.5 and 13 keV, a delay range from -30 ps up to 500 ps at 8 keV. The design features two planar air bearing based linear stage delay lines for improved stability and accuracy during the delay adjustments in order to maintain spatial overlap of the two branches during a delay scan. We present the basic design concept, tolerance analysis, and estimated performance of the system.

Paper Details

Date Published: 14 June 2017
PDF: 8 pages
Proc. SPIE 10237, Advances in X-ray Free-Electron Lasers Instrumentation IV, 102370R (14 June 2017); doi: 10.1117/12.2265171
Show Author Affiliations
Diling Zhu, SLAC National Accelerator Lab. (United States)
Yanwen Sun, SLAC National Accelerator Lab. (United States)
Donald W. Schafer, SLAC National Accelerator Lab. (United States)
Hongliang Shi, SLAC National Accelerator Lab. (United States)
Justin H. James, SLAC National Accelerator Lab. (United States)
Karl L. Gumerlock, SLAC National Accelerator Lab. (United States)
Ted O. Osier, SLAC National Accelerator Lab. (United States)
Randy Whitney, SLAC National Accelerator Lab. (United States)
Lin Zhang, SLAC National Accelerator Lab. (United States)
Josep Nicolas, SLAC National Accelerator Lab. (United States)
Brian Smith, SLAC National Accelerator Lab. (United States)
Andrew H. Barada, SLAC National Accelerator Lab. (United States)
Aymeric Robert, SLAC National Accelerator Lab. (United States)


Published in SPIE Proceedings Vol. 10237:
Advances in X-ray Free-Electron Lasers Instrumentation IV
Thomas Tschentscher; Luc Patthey, Editor(s)

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