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Title: Spatially resolved density and ionization measurements of shocked foams using x-ray fluorescence

Journal Article · · Journal of Applied Physics
DOI:https://doi.org/10.1063/1.4963113· OSTI ID:1255750

We present experiments at the Trident laser facility demonstrating the use of x-ray fluorescence (XRF) to simultaneously measure density, ionization state populations, and electron temperature in shocked foams. An imaging x-ray spectrometer obtained spatially resolved measurements of Ti K-α emission. Density profiles were measured from K-α intensity. Ti ionization state distributions and electron temperatures were inferred by fitting K-α spectra to spectra from CRETIN simulations. This work shows that XRF provides a powerful tool to complement other diagnostics to make equation of state measurements of shocked materials containing a suitable tracer element.

Research Organization:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Fusion Energy Sciences (FES)
DOE Contract Number:
AC02-76SF00515
OSTI ID:
1255750
Report Number(s):
SLAC-PUB-16540
Journal Information:
Journal of Applied Physics, Vol. 120, Issue 12; ISSN 0021-8979
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English

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