Numerical simulations of the hard X-ray pulse intensity distribution at the Linac Coherent Light Source

doi:10.1107/S1600577517007032

Title: Numerical simulations of the hard X-ray pulse intensity distribution at the Linac Coherent Light Source

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Abstract

Numerical simulations of the current and future pulse intensity distributions at selected locations along the Far Experimental Hall, the hard X-ray section of the Linac Coherent Light Source (LCLS), are provided. Estimates are given for the pulse fluence, energy and size in and out of focus, taking into account effects due to the experimentally measured divergence of the X-ray beam, and measured figure errors of all X-ray optics in the beam path. Out-of-focus results are validated by comparison with experimental data. Previous work is expanded on, providing quantitatively correct predictions of the pulse intensity distribution. Numerical estimates in focus are particularly important given that the latter cannot be measured with direct imaging techniques due to detector damage. Finally, novel numerical estimates of improvements to the pulse intensity distribution expected as part of the on-going upgrade of the LCLS X-ray transport system are provided. As a result, we suggest how the new generation of X-ray optics to be installed would outperform the old one, satisfying the tight requirements imposed by X-ray free-electron laser facilities.

Authors:

Pardini, Tom ^[1]; Aquila, Andrew ^[2]; Boutet, Sebastien ^[2]; Cocco, Daniele ^[2]; Hau-Riege, Stefan P. ^[1]

Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
SLAC National Accelerator Lab., Menlo Park, CA (United States)

Publication Date:: 2017-06-15

Research Org.:: SLAC National Accelerator Lab., Menlo Park, CA (United States); Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1373192

Alternate Identifier(s):: OSTI ID: 1420294

Report Number(s):: LLNL-JRNL-695561
Journal ID: ISSN 1600-5775; JSYRES; PII: S1600577517007032

Grant/Contract Number:: AC02-76SF00515; AC52-07NA27344

Resource Type:: Accepted Manuscript

Journal Name:: Journal of Synchrotron Radiation (Online)

Additional Journal Information:: Journal Name: Journal of Synchrotron Radiation (Online); Journal Volume: 24; Journal Issue: 4; Journal ID: ISSN 1600-5775

Publisher:: International Union of Crystallography

Country of Publication:: United States

Language:: English

Subject:: 46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; XFEL; LCLS; wavefront propagation simulations; X-ray optics; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS

Citation Formats


                    Pardini, Tom, Aquila, Andrew, Boutet, Sebastien, Cocco, Daniele, and Hau-Riege, Stefan P. Numerical simulations of the hard X-ray pulse intensity distribution at the Linac Coherent Light Source.  United States: N. p., 2017. 
        Web.  doi:10.1107/S1600577517007032.

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                    Pardini, Tom, Aquila, Andrew, Boutet, Sebastien, Cocco, Daniele, & Hau-Riege, Stefan P. Numerical simulations of the hard X-ray pulse intensity distribution at the Linac Coherent Light Source.  United States.  doi:10.1107/S1600577517007032.

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                    Pardini, Tom, Aquila, Andrew, Boutet, Sebastien, Cocco, Daniele, and Hau-Riege, Stefan P. Thu .  
        "Numerical simulations of the hard X-ray pulse intensity distribution at the Linac Coherent Light Source".  United States.  doi:10.1107/S1600577517007032.  https://www.osti.gov/servlets/purl/1373192.

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@article{osti_1373192,

  title        = {Numerical simulations of the hard X-ray pulse intensity distribution at the Linac Coherent Light Source},

  author       = {Pardini, Tom and Aquila, Andrew and Boutet, Sebastien and Cocco, Daniele and Hau-Riege, Stefan P.},

  abstractNote = {Numerical simulations of the current and future pulse intensity distributions at selected locations along the Far Experimental Hall, the hard X-ray section of the Linac Coherent Light Source (LCLS), are provided. Estimates are given for the pulse fluence, energy and size in and out of focus, taking into account effects due to the experimentally measured divergence of the X-ray beam, and measured figure errors of all X-ray optics in the beam path. Out-of-focus results are validated by comparison with experimental data. Previous work is expanded on, providing quantitatively correct predictions of the pulse intensity distribution. Numerical estimates in focus are particularly important given that the latter cannot be measured with direct imaging techniques due to detector damage. Finally, novel numerical estimates of improvements to the pulse intensity distribution expected as part of the on-going upgrade of the LCLS X-ray transport system are provided. As a result, we suggest how the new generation of X-ray optics to be installed would outperform the old one, satisfying the tight requirements imposed by X-ray free-electron laser facilities.},

  doi          = {10.1107/S1600577517007032},

  journal      = {Journal of Synchrotron Radiation (Online)},

  number       = 4,

  volume       = 24,

  place        = {United States},

  year         = {2017},

  month        = {6}

}

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DOI: 10.1107/S1600577517007032

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