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Title: Developing a high-flux, high-energy continuum backlighter for extended x-ray absorption fine structure measurements at the National Ignition Facility

Extended X-ray absorption fine structure (EXAFS) spectroscopy is a powerful tool for in situ characterization of matter in the high energy density regime. An EXAFS platform is currently being developed on the National Ignition Facility. Development of a suitable X-ray backlighter involves minimizing the temporal duration and source size while maximizing spectral smoothness and brightness. One approach involves imploding a spherical shell, which generates a high-flux X-ray flash at stagnation. Furthermore we present results from a series of experiments comparing the X-ray source properties produced by imploded empty and Ar-filled capsules.
Authors:
ORCiD logo [1] ;  [1] ;  [1] ;  [1] ; ORCiD logo [2] ;  [1] ;  [2] ;  [1] ;  [1] ;  [1] ; ORCiD logo [1] ; ORCiD logo [1]
  1. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  2. Univ. of Rochester, Rochester, NY (United States)
Publication Date:
Report Number(s):
LLNL-JRNL-750843
Journal ID: ISSN 0034-6748; 936398
Grant/Contract Number:
AC52-07NA27344
Type:
Accepted Manuscript
Journal Name:
Review of Scientific Instruments
Additional Journal Information:
Journal Volume: 89; Journal Issue: 10; Journal ID: ISSN 0034-6748
Publisher:
American Institute of Physics (AIP)
Research Org:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org:
USDOE National Nuclear Security Administration (NNSA)
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION
OSTI Identifier:
1479076
Alternate Identifier(s):
OSTI ID: 1476379

Krygier, A., Coppari, F., Kemp, G. E., Thorn, D. B., Craxton, R. S., Eggert, J. H., Garcia, E. M., McNaney, J. M., Park, H. -S., Ping, Y., Remington, B. A., and Schneider, M. B.. Developing a high-flux, high-energy continuum backlighter for extended x-ray absorption fine structure measurements at the National Ignition Facility. United States: N. p., Web. doi:10.1063/1.5038669.
Krygier, A., Coppari, F., Kemp, G. E., Thorn, D. B., Craxton, R. S., Eggert, J. H., Garcia, E. M., McNaney, J. M., Park, H. -S., Ping, Y., Remington, B. A., & Schneider, M. B.. Developing a high-flux, high-energy continuum backlighter for extended x-ray absorption fine structure measurements at the National Ignition Facility. United States. doi:10.1063/1.5038669.
Krygier, A., Coppari, F., Kemp, G. E., Thorn, D. B., Craxton, R. S., Eggert, J. H., Garcia, E. M., McNaney, J. M., Park, H. -S., Ping, Y., Remington, B. A., and Schneider, M. B.. 2018. "Developing a high-flux, high-energy continuum backlighter for extended x-ray absorption fine structure measurements at the National Ignition Facility". United States. doi:10.1063/1.5038669.
@article{osti_1479076,
title = {Developing a high-flux, high-energy continuum backlighter for extended x-ray absorption fine structure measurements at the National Ignition Facility},
author = {Krygier, A. and Coppari, F. and Kemp, G. E. and Thorn, D. B. and Craxton, R. S. and Eggert, J. H. and Garcia, E. M. and McNaney, J. M. and Park, H. -S. and Ping, Y. and Remington, B. A. and Schneider, M. B.},
abstractNote = {Extended X-ray absorption fine structure (EXAFS) spectroscopy is a powerful tool for in situ characterization of matter in the high energy density regime. An EXAFS platform is currently being developed on the National Ignition Facility. Development of a suitable X-ray backlighter involves minimizing the temporal duration and source size while maximizing spectral smoothness and brightness. One approach involves imploding a spherical shell, which generates a high-flux X-ray flash at stagnation. Furthermore we present results from a series of experiments comparing the X-ray source properties produced by imploded empty and Ar-filled capsules.},
doi = {10.1063/1.5038669},
journal = {Review of Scientific Instruments},
number = 10,
volume = 89,
place = {United States},
year = {2018},
month = {10}
}

Works referenced in this record:

Polar direct drive on the National Ignition Facility
journal, May 2004
  • Skupsky, S.; Marozas, J. A.; Craxton, R. S.
  • Physics of Plasmas, Vol. 11, Issue 5, p. 2763-2770
  • DOI: 10.1063/1.1689665