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Title: Demonstration of x-ray fluorescence imaging of a high-energy-density plasma

Experiments at the Trident Laser Facility have successfully demonstrated the use of x-ray fluorescence imaging (XRFI) to diagnose shocked carbonized resorcinol formaldehyde (CRF) foams doped with Ti. One laser beam created a shock wave in the doped foam. A second laser beam produced a flux of vanadium He-α x-rays, which in turn induced Ti K-shell fluorescence within the foam. Spectrally resolved 1D imaging of the x-ray fluorescence provided shock location and compression measurements. Additionally, experiments using a collimator demonstrated that one can probe specific regions within a target. These results show that XRFI is a capable alternative to path-integrated measurements for diagnosing hydrodynamic experiments at high energy density.
Authors:
;  [1] ;  [2] ; ; ; ; ; ; ; ;  [1] ;  [3] ; ;  [4] ;  [5]
  1. Department of Atmospheric, Oceanic, and Space Sciences, University of Michigan, Ann Arbor, Michigan 48109 (United States)
  2. (United States)
  3. Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)
  4. Lawrence Livermore National Laboratory, Livermore, California 94550 (United States)
  5. Schafer Corporation, Livermore, California 94551 (United States)
Publication Date:
OSTI Identifier:
22308996
Resource Type:
Journal Article
Resource Relation:
Journal Name: Review of Scientific Instruments; Journal Volume: 85; Journal Issue: 11; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; COLLIMATORS; COMPRESSION; DOPED MATERIALS; ENERGY DENSITY; FOAMS; FORMALDEHYDE; K SHELL; LASERS; MEASURING METHODS; PHOTON BEAMS; PLASMA; PROBES; RESORCINOL; SHOCK WAVES; VANADIUM; X-RAY FLUORESCENCE ANALYSIS