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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

Journal Article · · Review of Scientific Instruments
DOI:https://doi.org/10.1063/1.5038669· OSTI ID:1479076

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.

Research Organization:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
AC52-07NA27344
OSTI ID:
1479076
Alternate ID(s):
OSTI ID: 1476379
Report Number(s):
LLNL-JRNL-750843; 936398
Journal Information:
Review of Scientific Instruments, Vol. 89, Issue 10; ISSN 0034-6748
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 18 works
Citation information provided by
Web of Science

References (17)

Advanced gated x-ray imagers for experiments at the National Ignition Facility conference September 2011
Gated x-ray detector for the National Ignition Facility journal October 2006
Dante soft x-ray power diagnostic for National Ignition Facility journal October 2004
The Hugoniot and chemistry of ablator plastic below 100 GPa journal January 2016
Polar direct drive on the National Ignition Facility journal May 2004
XOP v2.4: recent developments of the x-ray optics software toolkit conference September 2011
Capsule implosions for continuum x-ray backlighting of opacity samples at the National Ignition Facility journal June 2017
Anisotropy in the deep Earth journal August 2017
Qualification of a high-efficiency, gated spectrometer for x-ray Thomson scattering on the National Ignition Facility journal November 2014
A platform for x-ray absorption fine structure study of dynamically compressed materials above 1 Mbar journal December 2013
X-ray source development for EXAFS measurements on the National Ignition Facility journal August 2017
X-ray and neutron sensitivity of imaging plates conference September 2013
Laser shock XAFS studies at OMEGA facility journal July 2016
X-ray spectrometer throughput model for (selected) flat Bragg crystal spectrometers on laser plasma facilities journal October 2018
Equation of state of iron under core conditions of large rocky exoplanets journal April 2018
The National Ignition Facility: enabling fusion ignition for the 21st century journal November 2004
Design of the National Ignition Facility static x-ray imager journal January 2001

Cited By (3)


Figures / Tables (8)


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