Modeling radiative-shocks created by laser–cluster interactions
Abstract
Radiative-shocks induced by laser–cluster interactions are modeled using radiation-hydrodynamic simulations. A good agreement—in both shock velocity and density profiles—is obtained between experiment and simulations, indicating that non-local thermodynamic equilibrium (NLTE) radiative effects are important in the experimental regime examined, particularly at early times (≤30 ns) due to the elevated temperatures (≥35 eV). The enhanced NLTE radiative emission causes the shock to be reduced in amplitude, increased in width, and reduced in propagation velocity, while the amplitude of the radiative precursor is increased. As the density and temperature conditions are relatively modest, this potentially has important implications for the scalings that are used in laboratory–astrophysics to transform between laboratory and astrophysical scales, which do not hold for non-LTE systems.
- Authors:
-
[1];
[3];
- Science and Technology Facilities Council (STFC), Oxford (United Kingdom). Rutherford Appleton Lab. (RAL)
- First Light Fusion, Yarnton, (United Kingdom)
- Imperial College, London (United Kingdom)
- IMS Bordeaux University, Talence (France)
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- SLAC National Accelerator Lab., Menlo Park, CA (United States)
- AWE Aldermaston, Reading (United Kingdom)
- Publication Date:
- Research Org.:
- SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States); Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- Sponsoring Org.:
- USDOE National Nuclear Security Administration (NNSA); Engineering and Physical Sciences Research Council (EPSRC)
- OSTI Identifier:
- 1608570
- Alternate Identifier(s):
- OSTI ID: 1785445
- Report Number(s):
- LLNL-JRNL-820622
Journal ID: ISSN 1070-664X; TRN: US2105072
- Grant/Contract Number:
- AC02-76SF00515; AC52-07NA27344; EP/G001324/1
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physics of Plasmas
- Additional Journal Information:
- Journal Volume: 27; Journal Issue: 3; Journal ID: ISSN 1070-664X
- Publisher:
- American Institute of Physics (AIP)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; Lasers
Citation Formats
Scott, R. H. H., Booth, N., Hawkes, S. J., Symes, D. R., Hooker, C., Doyle, H. W., Olsson-Robbie, S. I., Lowe, H. F., Price, C. J., Bigourd, D., Patankar, S., Mecseki, K., Gumbrell, E. T., and Smith, R. A. Modeling radiative-shocks created by laser–cluster interactions. United States: N. p., 2020.
Web. doi:10.1063/1.5136070.
Scott, R. H. H., Booth, N., Hawkes, S. J., Symes, D. R., Hooker, C., Doyle, H. W., Olsson-Robbie, S. I., Lowe, H. F., Price, C. J., Bigourd, D., Patankar, S., Mecseki, K., Gumbrell, E. T., & Smith, R. A. Modeling radiative-shocks created by laser–cluster interactions. United States. https://doi.org/10.1063/1.5136070
Scott, R. H. H., Booth, N., Hawkes, S. J., Symes, D. R., Hooker, C., Doyle, H. W., Olsson-Robbie, S. I., Lowe, H. F., Price, C. J., Bigourd, D., Patankar, S., Mecseki, K., Gumbrell, E. T., and Smith, R. A. Mon .
"Modeling radiative-shocks created by laser–cluster interactions". United States. https://doi.org/10.1063/1.5136070. https://www.osti.gov/servlets/purl/1608570.
@article{osti_1608570,
title = {Modeling radiative-shocks created by laser–cluster interactions},
author = {Scott, R. H. H. and Booth, N. and Hawkes, S. J. and Symes, D. R. and Hooker, C. and Doyle, H. W. and Olsson-Robbie, S. I. and Lowe, H. F. and Price, C. J. and Bigourd, D. and Patankar, S. and Mecseki, K. and Gumbrell, E. T. and Smith, R. A.},
abstractNote = {Radiative-shocks induced by laser–cluster interactions are modeled using radiation-hydrodynamic simulations. A good agreement—in both shock velocity and density profiles—is obtained between experiment and simulations, indicating that non-local thermodynamic equilibrium (NLTE) radiative effects are important in the experimental regime examined, particularly at early times (≤30 ns) due to the elevated temperatures (≥35 eV). The enhanced NLTE radiative emission causes the shock to be reduced in amplitude, increased in width, and reduced in propagation velocity, while the amplitude of the radiative precursor is increased. As the density and temperature conditions are relatively modest, this potentially has important implications for the scalings that are used in laboratory–astrophysics to transform between laboratory and astrophysical scales, which do not hold for non-LTE systems.},
doi = {10.1063/1.5136070},
journal = {Physics of Plasmas},
number = 3,
volume = 27,
place = {United States},
year = {Mon Mar 02 00:00:00 EST 2020},
month = {Mon Mar 02 00:00:00 EST 2020}
}
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