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Spectroscopic studies of hard x-ray free-electron laser-heated foils at 10 16 Wcm -2 irradiances

  • J. Dunn
  • , R. Shepherd
  • , A. Graf
  • , A. Steel
  • , J. Park
  • , S. J. Moon
  • , R. W. Lee
  • , P. Audebert
  • , A. Levy
  • , M. Gauthier
  • , J. Fuchs
  • , D. M. Fritz
  • , M. Cammarata
  • , D. Milathianaki
  • , H. J. Lee
  • , B. Nagler
  • , C. Fourment
  • , F. Deneuville
  • , G. Williams
  • , M. Fajardo
  • J. Gaudin, S. Vinko, O. Ciricosta, J. Wark, H. K. Chung
  • Lawrence Livermore National Laboratory
  • Stanford Linear Accelerator Center
  • Univ. Bordeaux
  • Instituto Superior Técnico
  • European XFEL GmbH
  • University of Oxford
  • International Atomic Energy Agency, Vienna International Centre

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

We report a recent experiment where the first hard x-ray beam line, X-ray Pump Probe (XPP) instrument using the SLAC National Accelerator Laboratory's Linac Coherent Light Source (LCLS) free electron laser, was used to heat thin foils to high energy densities ∼ 107 J/cm 3. An intense 9 keV, 60 fs (FWHM) duration beam with energy of 2 - 4 mJ at the XPP beam line was focused using beryllium lenses to an irradiance approaching 1016 Wcm -2. Targets of 0.5 - 3.5 μm thick foils of Ag and Cu were studied using a suite of diagnostics including Fourier Domain Interferometry, energy calorimetry and grating and crystal spectrometers. The experimental details and spectroscopic results from the campaign will be described. Preliminary results indicate that the target is heated relatively uniformly to a temperature lower than 20 eV.

Original languageEnglish
Title of host publicationX-Ray Lasers and Coherent X-Ray Sources
Subtitle of host publicationDevelopment and Applications IX
DOIs
Publication statusPublished - 1 Dec 2011
EventX-Ray Lasers and Coherent X-Ray Sources: Development and Applications IX - San Diego, CA, United States
Duration: 23 Aug 201125 Aug 2011

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume8140
ISSN (Print)0277-786X

Conference

ConferenceX-Ray Lasers and Coherent X-Ray Sources: Development and Applications IX
Country/TerritoryUnited States
CitySan Diego, CA
Period23/08/1125/08/11

Keywords

  • Free electron laser
  • Hard x-ray
  • High energy density
  • Plasmas
  • Warm dense matter
  • X-ray crystal spectroscopy

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