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Title: Shock-driven kinetic and diffusive mix in high-Z pusher ICF designs

Abstract

Revolver and Double Shell Inertial Confinement Fusion capsule designs hope to achieve a robust volumetric thermonuclear burn via the use of a high-Z pusher shell filled with a cryogenic D–T fuel. Unfortunately, mix of the pusher material into the fuel (gas) may adversely impact the burn performance. Hydrodynamic instability of the metal/gas interface as the mix source is an obvious concern, but 1D effects may also be detrimental. Such effects include plasma diffusion at material interfaces, which has been the subject of numerous theoretical, computational, and experimental investigations. However, other 1D mix mechanisms may exist, which have yet to be thoroughly explored. In particular, plasma kinetic effects may drive the mix when a shock breaks out of the metal/gas interface. Using the state-of-the-art, hybrid (kinetic-ion/fluid electron), multi-ion Vlasov–Fokker–Planck code, iFP, we show herein that shock-driven kinetic effects can reconfigure the interface and the interfacial width subsequently grows diffusively. Finally, we consider any implications for high-Z pusher designs.

Authors:
ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1604013
Alternate Identifier(s):
OSTI ID: 1599250
Report Number(s):
[LA-UR-19-32053]
[Journal ID: ISSN 1070-664X]
Grant/Contract Number:  
[89233218CNA000001]
Resource Type:
Accepted Manuscript
Journal Name:
Physics of Plasmas
Additional Journal Information:
[ Journal Volume: 27; Journal Issue: 2]; Journal ID: ISSN 1070-664X
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English

Citation Formats

Keenan, Brett D., Taitano, William T., Simakov, Andrei N., Chacon, Luis, and Albright, Brian James. Shock-driven kinetic and diffusive mix in high-Z pusher ICF designs. United States: N. p., 2020. Web. doi:10.1063/1.5140361.
Keenan, Brett D., Taitano, William T., Simakov, Andrei N., Chacon, Luis, & Albright, Brian James. Shock-driven kinetic and diffusive mix in high-Z pusher ICF designs. United States. doi:10.1063/1.5140361.
Keenan, Brett D., Taitano, William T., Simakov, Andrei N., Chacon, Luis, and Albright, Brian James. Wed . "Shock-driven kinetic and diffusive mix in high-Z pusher ICF designs". United States. doi:10.1063/1.5140361.
@article{osti_1604013,
title = {Shock-driven kinetic and diffusive mix in high-Z pusher ICF designs},
author = {Keenan, Brett D. and Taitano, William T. and Simakov, Andrei N. and Chacon, Luis and Albright, Brian James},
abstractNote = {Revolver and Double Shell Inertial Confinement Fusion capsule designs hope to achieve a robust volumetric thermonuclear burn via the use of a high-Z pusher shell filled with a cryogenic D–T fuel. Unfortunately, mix of the pusher material into the fuel (gas) may adversely impact the burn performance. Hydrodynamic instability of the metal/gas interface as the mix source is an obvious concern, but 1D effects may also be detrimental. Such effects include plasma diffusion at material interfaces, which has been the subject of numerous theoretical, computational, and experimental investigations. However, other 1D mix mechanisms may exist, which have yet to be thoroughly explored. In particular, plasma kinetic effects may drive the mix when a shock breaks out of the metal/gas interface. Using the state-of-the-art, hybrid (kinetic-ion/fluid electron), multi-ion Vlasov–Fokker–Planck code, iFP, we show herein that shock-driven kinetic effects can reconfigure the interface and the interfacial width subsequently grows diffusively. Finally, we consider any implications for high-Z pusher designs.},
doi = {10.1063/1.5140361},
journal = {Physics of Plasmas},
number = [2],
volume = [27],
place = {United States},
year = {2020},
month = {2}
}

Journal Article:
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Works referenced in this record:

Effective Potential Theory for Transport Coefficients across Coupling Regimes
journal, June 2013


Deciphering the kinetic structure of multi-ion plasma shocks
journal, November 2017


Ion species stratification within strong shocks in two-ion plasmas
journal, March 2018

  • Keenan, Brett D.; Simakov, Andrei N.; Taitano, William T.
  • Physics of Plasmas, Vol. 25, Issue 3
  • DOI: 10.1063/1.5020156

Nonlinear Structure of the Diffusing Gas-Metal Interface in a Thermonuclear Plasma
journal, October 2014


Shock-induced mix across an ideal interface
journal, April 2017

  • Bellei, C.; Amendt, P. A.
  • Physics of Plasmas, Vol. 24, Issue 4
  • DOI: 10.1063/1.4979904

An equilibrium-preserving discretization for the nonlinear Rosenbluth–Fokker–Planck operator in arbitrary multi-dimensional geometry
journal, June 2017


Plasma kinetic effects on interfacial mix
journal, November 2016

  • Yin, L.; Albright, B. J.; Taitano, W.
  • Physics of Plasmas, Vol. 23, Issue 11
  • DOI: 10.1063/1.4966562

Diffusion-driven fluid dynamics in ideal gases and plasmas
journal, June 2018

  • Vold, E. L.; Yin, L.; Taitano, W.
  • Physics of Plasmas, Vol. 25, Issue 6
  • DOI: 10.1063/1.5029932

Plasma kinetic effects on interfacial mix and burn rates in multispatial dimensions
journal, June 2019

  • Yin, L.; Albright, B. J.; Vold, E. L.
  • Physics of Plasmas, Vol. 26, Issue 6
  • DOI: 10.1063/1.5109257

Design considerations for indirectly driven double shell capsules
journal, September 2018

  • Montgomery, D. S.; Daughton, W. S.; Albright, B. J.
  • Physics of Plasmas, Vol. 25, Issue 9
  • DOI: 10.1063/1.5042478

An adaptive, conservative 0D-2V multispecies Rosenbluth–Fokker–Planck solver for arbitrarily disparate mass and temperature regimes
journal, August 2016


A mass, momentum, and energy conserving, fully implicit, scalable algorithm for the multi-dimensional, multi-species Rosenbluth–Fokker–Planck equation
journal, September 2015


Diffusion-dominated mixing in moderate convergence implosions
journal, June 2018


The converging shock wave from a spherical or cylindrical piston
journal, July 1982


Kinetic simulations of fusion ignition with hot-spot ablator mix
journal, September 2019


An adaptive, implicit, conservative, 1D-2V multi-species Vlasov–Fokker–Planck multi-scale solver in planar geometry
journal, July 2018


Hydrodynamic description of an unmagnetized plasma with multiple ion species. I. General formulation
journal, March 2016

  • Simakov, Andrei N.; Molvig, Kim
  • Physics of Plasmas, Vol. 23, Issue 3
  • DOI: 10.1063/1.4943894

Plasma transport in an Eulerian AMR code
journal, April 2017

  • Vold, E. L.; Rauenzahn, R. M.; Aldrich, C. H.
  • Physics of Plasmas, Vol. 24, Issue 4
  • DOI: 10.1063/1.4979171

Self-similar solutions for multi-species plasma mixing by gradient driven transport
journal, March 2018

  • Vold, E.; Kagan, G.; Simakov, A. N.
  • Plasma Physics and Controlled Fusion, Vol. 60, Issue 5
  • DOI: 10.1088/1361-6587/aab38e

Low Fuel Convergence Path to Direct-Drive Fusion Ignition
journal, June 2016


Hydrodynamic description of an unmagnetized plasma with multiple ion species. II. Two and three ion species plasmas
journal, March 2016

  • Simakov, Andrei N.; Molvig, Kim
  • Physics of Plasmas, Vol. 23, Issue 3
  • DOI: 10.1063/1.4943895

Electron transport in a collisional plasma with multiple ion species
journal, February 2014

  • Simakov, Andrei N.; Molvig, Kim
  • Physics of Plasmas, Vol. 21, Issue 2
  • DOI: 10.1063/1.4867183