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Proceedings Paper

A hard x-ray transmissive single-shot spectrometer for FEL sources
Author(s): Yiping Feng; Diling Zhu; Jan M. Feldkamp; Henrik T. Lemke; Aymeric Robert; David M. Fritz; Marco Cammarata; Sooheyong Lee; Jerome B. Hastings; James L. Turner
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Paper Abstract

We report the design of a single-shot transmissive spectrometer for spectral measurements of the Linac Coherent Light Source (LCLS) operating in the mode of Self-Amplified Spontaneous Emission (SASE). The spectrometer was constructed using an ultra-thin and bent silicon single-crystal operating in the symmetric Bragg geometry. It was shown to be capable of recording the single-shot LCLS spectra while transmitting the majority of the incident flux to downstream experimental stations. The spectrometer used the Si (111) reflection for capturing the full SASE spectrum, and was then configured the high resolution mode using the Si (333) for resolving single spikes in the power spectral density.

Paper Details

Date Published: 15 October 2012
PDF: 9 pages
Proc. SPIE 8504, X-Ray Free-Electron Lasers: Beam Diagnostics, Beamline Instrumentation, and Applications, 85040S (15 October 2012); doi: 10.1117/12.930943
Show Author Affiliations
Yiping Feng, SLAC National Accelerator Lab. (United States)
Diling Zhu, SLAC National Accelerator Lab. (United States)
Jan M. Feldkamp, SLAC National Accelerator Lab. (United States)
Henrik T. Lemke, SLAC National Accelerator Lab. (United States)
Aymeric Robert, SLAC National Accelerator Lab. (United States)
David M. Fritz, SLAC National Accelerator Lab. (United States)
Marco Cammarata, SLAC National Accelerator Lab. (United States)
Sooheyong Lee, SLAC National Accelerator Lab. (United States)
Jerome B. Hastings, SLAC National Accelerator Lab. (United States)
James L. Turner, SLAC National Accelerator Lab. (United States)


Published in SPIE Proceedings Vol. 8504:
X-Ray Free-Electron Lasers: Beam Diagnostics, Beamline Instrumentation, and Applications
Stefan P. Moeller; Makina Yabashi; Stefan P. Hau-Riege, Editor(s)

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