Analysis of microscopic properties of radiative shock experiments performed at the Orion laser facility

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Title: Analysis of microscopic properties of radiative shock experiments performed at the Orion laser facility
Authors: Rodriguez, R
Espinosa, G
Gil, JM
Suzuki Vidal, F
Clayson, T
Stehle, C
Graham, P
Item Type: Journal Article
Abstract: In this work we have conducted a study of the radiative and spectroscopic properties of the radiative precursor and the post-shock region from experiments with radiative shocks in xenon performed at the Orion laser facility. The study is based on post-processing of radiation hydrodynamics simulations of the experiment. In particular, we have analyzed the thermodynamic regime of the plasma, the charge state distributions, the monochromatic opacities and emissivities, and the specific intensities for plasma conditions of both regions. The study of the intensities is a useful tool to estimate ranges of electron temperatures present in the xenon plasma in these 2 experiments and the analysis performed of the microscopic properties commented above helps to better understand the intensity spectra. Finally, a theoretical analysis of the possibility of the onset of isobaric thermal instabilities in the post-shock has been made, concluding that the instabilities obtained in the radiative hydrodynamic simulations could be thermal ones due to strong radiative cooling.
Issue Date: 22-Jun-2018
Date of Acceptance: 24-Apr-2018
URI: http://hdl.handle.net/10044/1/59276
DOI: https://dx.doi.org/10.1017/hpl.2018.28
ISSN: 2095-4719
Publisher: Cambridge University Press
Start Page: e36
End Page: e36
Journal / Book Title: High Power Laser Science and Engineering
Volume: 6
Copyright Statement: © The Author(s) 2018. This is an Open Access article, distributed under the terms of the Creative Commons Attribution licence (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted re-use, distribution, and reproduction in any medium, provided the original work is properly cited.
Sponsor/Funder: The Royal Society
Royal Society
Funder's Grant Number: UF120135
Keywords: Science & Technology
Physical Sciences
Optics
high-power lasers
laboratory experiments on radiative shocks
plasma radiative properties
spectroscopy
OPTICALLY THIN
BLAST WAVES
PLASMAS
ASTROPHYSICS
SIMULATIONS
TEMPERATURE
INSTABILITY
TRANSITION
PRECURSORS
STABILITY
Publication Status: Published
Appears in Collections:Physics
Plasma Physics
Faculty of Natural Sciences



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