Return current instability driven by a temperature gradient in ICF plasmas

Rozmus, W.; Brantov, A. V.; Sherlock, M.; Bychenkov, V. Yu

doi:10.1088/1361-6587/aa868d

Title: Return current instability driven by a temperature gradient in ICF plasmas

Abstract

Here, hot plasmas with strong temperature gradients in inertial confinement fusion (ICF) experiments are examined for ion acoustic instabilities produced by electron heat flow. The return current instability (RCI) due to a neutralizing current of cold electrons arising in response to a large electron heat flux has been considered. First, the linear threshold and growth rates are derived in the nonlocal regime of thermal transport. They are compared with the results of Vlasov-Fokker-Planck (VFP) simulations in one spatial dimension. Very good agreement has been found between kinetic VFP simulations and the linear theory of the RCI. A quasi-stationary state of ion acoustic turbulence produced by the RCI is achieved in the VFP simulations. Saturation of the RCI involves heating of ions in the tail of the ion distribution function and convection of the enhanced ion acoustic fluctuations from the unstable region of the plasma. Further evolution of the ion acoustic turbulence and its effects on absorption and transport are also discussed.

Authors:

Rozmus, W. ^[1]; Brantov, A. V. ^[2]; Sherlock, M. ^[3]; Bychenkov, V. Yu ^[2]

Univ. of Alberta, Edmonton, AB (Canada)
Russian Academy of Science, Moscow (Russia)
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

Publication Date:: Thu Oct 12 00:00:00 EDT 2017

Research Org.:: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United Kingdom)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1393332

Report Number(s):: LLNL-PROC-737115
Journal ID: ISSN 0741-3335

Grant/Contract Number:: AC52-07NA27344

Resource Type:: Accepted Manuscript

Journal Name:: Plasma Physics and Controlled Fusion

Additional Journal Information:: Journal Volume: 60; Journal Issue: 1; Conference: Presented at: European Physical Society Plasma Physics, Belfast (United Kingdom), 26-30 Jun 2017; Journal ID: ISSN 0741-3335

Publisher:: IOP Science

Country of Publication:: United States

Language:: English

Subject:: 70 PLASMA PHYSICS AND FUSION; return current instability; ion acoustic turbulence; anomalous absorption and transport

Citation Formats


                    Rozmus, W., Brantov, A. V., Sherlock, M., and Bychenkov, V. Yu. Return current instability driven by a temperature gradient in ICF plasmas.  United States: N. p., 2017. 
Web.  doi:10.1088/1361-6587/aa868d.

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                    Rozmus, W., Brantov, A. V., Sherlock, M., & Bychenkov, V. Yu. Return current instability driven by a temperature gradient in ICF plasmas.  United States.  https://doi.org/10.1088/1361-6587/aa868d

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                    Rozmus, W., Brantov, A. V., Sherlock, M., and Bychenkov, V. Yu. Thu .  
"Return current instability driven by a temperature gradient in ICF plasmas".  United States.  https://doi.org/10.1088/1361-6587/aa868d.  https://www.osti.gov/servlets/purl/1393332.

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@article{osti_1393332,

  title        = {Return current instability driven by a temperature gradient in ICF plasmas},

  author       = {Rozmus, W. and Brantov, A. V. and Sherlock, M. and Bychenkov, V. Yu},

  abstractNote = {Here, hot plasmas with strong temperature gradients in inertial confinement fusion (ICF) experiments are examined for ion acoustic instabilities produced by electron heat flow. The return current instability (RCI) due to a neutralizing current of cold electrons arising in response to a large electron heat flux has been considered. First, the linear threshold and growth rates are derived in the nonlocal regime of thermal transport. They are compared with the results of Vlasov-Fokker-Planck (VFP) simulations in one spatial dimension. Very good agreement has been found between kinetic VFP simulations and the linear theory of the RCI. A quasi-stationary state of ion acoustic turbulence produced by the RCI is achieved in the VFP simulations. Saturation of the RCI involves heating of ions in the tail of the ion distribution function and convection of the enhanced ion acoustic fluctuations from the unstable region of the plasma. Further evolution of the ion acoustic turbulence and its effects on absorption and transport are also discussed.},

  doi          = {10.1088/1361-6587/aa868d},

  journal      = {Plasma Physics and Controlled Fusion},

  number       = 1,

  volume       = 60,

  place        = {United States},

  year         = {Thu Oct 12 00:00:00 EDT 2017},

  month        = {Thu Oct 12 00:00:00 EDT 2017}

}

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A model of anomalous absorption of laser light on ion acoustic turbulence
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Works referencing / citing this record:

Ion acoustic turbulence driven by return current leads to hot electrons in laser-produced plasma
journal, October 2018

Bychenkov, V. Yu.
Physics of Plasmas, Vol. 25, Issue 10
DOI: 10.1063/1.5053638

Heat transport modeling of the dot spectroscopy platform on NIF
journal, February 2018

Farmer, W. A.; Jones, O. S.; Barrios, M. A.
Plasma Physics and Controlled Fusion, Vol. 60, Issue 4
DOI: 10.1088/1361-6587/aaaefd

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Title: Return current instability driven by a temperature gradient in ICF plasmas

Abstract

Citation Formats

Anomalous Absorption of High-Energy Green Laser Light in High- Z Plasmas journal, May 2002

Heat flux limitation by ion-acoustic instability journal, January 1980

Ion acoustic instability driven by a temperature gradient in laser-produced plasmas journal, August 2001

Instabilities associated with heat conduction in the solar wind and their consequences journal, January 1970

Electrostatic Response of a Two-Component Plasma with Coulomb Collisions journal, May 2012

Linear delta- f simulations of nonlocal electron heat transport journal, July 2000

High-Frequency Conductivity and the Emission and Absorption Coefficients of a Fully Ionized Plasma journal, January 1962

Particle-in-cell simulations of heat flux driven ion acoustic instability journal, January 2005

Effect of Nonlocal Transport on Heat-Wave Propagation journal, May 2004

Scattering and Transformation of Waves in a Magnetoactive Plasma journal, March 1966

Ion-acoustic turbulence and anomalous transport journal, July 1988

Efficient Light Absorption by Ion-Acoustic Fluctuations in Laser-Produced Plasmas journal, May 1977

Kinetic Susceptibility and Transport Theory of Collisional Plasmas journal, September 2004

A model of anomalous absorption of laser light on ion acoustic turbulence journal, January 2017

Energy flux limitation by ion acoustic turbulence in laser fusion schemes journal, January 1977

Quasihydrodynamic description of ion acoustic waves in a collisional plasma journal, August 1994

Simulations of electron transport in laser hot spots journal, March 2002

Return current instability in laser heated plasmas journal, November 1995

Transport Phenomena in a Completely Ionized Gas journal, March 1953

Electron transport and permittivity in a plasma with an arbitrary ionic charge journal, May 2008

Effect of Ion Correlations on High-Frequency Plasma Conductivity journal, January 1963

Rotational Stabilization of Cargo Container Slung Loads journal, October 2015

Dynamics of the heat flux-induced ion turbulence in a laser-produced plasma journal, January 1983

Enhanced ion acoustic fluctuations in laser-produced plasmas journal, November 1994

Nonlocal Electron Transport in a Plasma journal, December 1995

The measurement of ion acoustic turbulence and reduced thermal conductivity caused by a large temperature gradient in a laser heated plasma journal, February 1980

Ion acoustic turbulence driven by return current leads to hot electrons in laser-produced plasma journal, October 2018

Heat transport modeling of the dot spectroscopy platform on NIF journal, February 2018

Anomalous Absorption of High-Energy Green Laser Light in High- $Z$ Plasmas
journal, May 2002

Heat flux limitation by ion-acoustic instability
journal, January 1980

Ion acoustic instability driven by a temperature gradient in laser-produced plasmas
journal, August 2001

Instabilities associated with heat conduction in the solar wind and their consequences
journal, January 1970

Electrostatic Response of a Two-Component Plasma with Coulomb Collisions
journal, May 2012

Linear delta- f simulations of nonlocal electron heat transport
journal, July 2000

High-Frequency Conductivity and the Emission and Absorption Coefficients of a Fully Ionized Plasma
journal, January 1962

Particle-in-cell simulations of heat flux driven ion acoustic instability
journal, January 2005

Effect of Nonlocal Transport on Heat-Wave Propagation
journal, May 2004

Scattering and Transformation of Waves in a Magnetoactive Plasma
journal, March 1966

Ion-acoustic turbulence and anomalous transport
journal, July 1988

Efficient Light Absorption by Ion-Acoustic Fluctuations in Laser-Produced Plasmas
journal, May 1977

Kinetic Susceptibility and Transport Theory of Collisional Plasmas
journal, September 2004

A model of anomalous absorption of laser light on ion acoustic turbulence
journal, January 2017

Energy flux limitation by ion acoustic turbulence in laser fusion schemes
journal, January 1977

Quasihydrodynamic description of ion acoustic waves in a collisional plasma
journal, August 1994

Simulations of electron transport in laser hot spots
journal, March 2002

Return current instability in laser heated plasmas
journal, November 1995

Transport Phenomena in a Completely Ionized Gas
journal, March 1953

Electron transport and permittivity in a plasma with an arbitrary ionic charge
journal, May 2008

Effect of Ion Correlations on High-Frequency Plasma Conductivity
journal, January 1963

Rotational Stabilization of Cargo Container Slung Loads
journal, October 2015

Dynamics of the heat flux-induced ion turbulence in a laser-produced plasma
journal, January 1983

Enhanced ion acoustic fluctuations in laser-produced plasmas
journal, November 1994

Nonlocal Electron Transport in a Plasma
journal, December 1995

The measurement of ion acoustic turbulence and reduced thermal conductivity caused by a large temperature gradient in a laser heated plasma
journal, February 1980

Ion acoustic turbulence driven by return current leads to hot electrons in laser-produced plasma
journal, October 2018

Heat transport modeling of the dot spectroscopy platform on NIF
journal, February 2018