Radiative shock properties using x-ray Thomson scattering and self-emission measurements on the National Ignition Facility
ORAL
Abstract
Radiative shocks are relevant to a variety of astrophysical phenomena, such as supernova remnants and accretion shocks. Experiments to understand the structure and radiation transport in radiative shocks inform the interpretation of observational data and improve simulation codes. A recent Discovery Science campaign measured radiative shocks using x-ray Thomson scattering and streaked self-emission from the heated material to extract quantitative information about the temperature profile and radiation transport. The experiment uses a halfraum to drive a radiative shock into a 20 mg cm$^{-3}$ CH foam and a Zn probe foil to produce 9 keV emission for the scattering measurement. The self-emission diagnostic determined the average shock velocity is 130 $\mu$m ns$^{-1}$. This presentation will present the analysis of the scattering and self-emission data collected during the recent discovery science campaign.
*This work is funded by the U.S. DOE NNSA Center of Excellence under cooperative agreement number DE-NA0003869 and the NSF through the Basic Plasma Science and Engineering program NSF 16-564, grant number 1707260. The work of M.J.M., T.D., M.M and C.M.H. was performed under the auspices of the U.S. DOE by LLNL under Contract DE-AC52-07NA27344.
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