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Transport in the presence of inverse bremsstrahlung heating and magnetic fields

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Transport in the presence of inverse bremsstrahlung heating and magnetic fields. / Ridgers, C. P.; Thomas, Alexander George Roy; Kingham, R. J.; Robinson, A. P. L.

In: Physics of Plasmas, Vol. 15, No. 9, 092311, 01.09.2008.

Research output: Contribution to journalJournal article

Harvard

Ridgers, CP, Thomas, AGR, Kingham, RJ & Robinson, APL 2008, 'Transport in the presence of inverse bremsstrahlung heating and magnetic fields', Physics of Plasmas, vol. 15, no. 9, 092311. https://doi.org/10.1063/1.2978092

APA

Ridgers, C. P., Thomas, A. G. R., Kingham, R. J., & Robinson, A. P. L. (2008). Transport in the presence of inverse bremsstrahlung heating and magnetic fields. Physics of Plasmas, 15(9), [092311]. https://doi.org/10.1063/1.2978092

Vancouver

Ridgers CP, Thomas AGR, Kingham RJ, Robinson APL. Transport in the presence of inverse bremsstrahlung heating and magnetic fields. Physics of Plasmas. 2008 Sep 1;15(9). 092311. https://doi.org/10.1063/1.2978092

Author

Ridgers, C. P. ; Thomas, Alexander George Roy ; Kingham, R. J. ; Robinson, A. P. L. / Transport in the presence of inverse bremsstrahlung heating and magnetic fields. In: Physics of Plasmas. 2008 ; Vol. 15, No. 9.

Bibtex

@article{5325baad01254153b1a03f9b4615d4e8,
title = "Transport in the presence of inverse bremsstrahlung heating and magnetic fields",
abstract = "Electron transport in the presence of long (nanosecond) laser pulses can be significantly different from that of magnetohydrodynamics calculations using Braginskii{\textquoteright}s transport theory, due to the distortion of the underlying electron distribution function from a Maxwellian. To correctly model the transport under conditions relevant to direct and indirect-drive inertial fusion plasmas, the Vlasov–Fokker–Planck equation for the electrons should be solved; however, this is computationally intensive. Modified transport coefficients have been calculated for a distribution function appropriate to a plasma heated by inverse-bremsstrahlung, i.e., a super-Gaussian. The resulting transport was then compared to a Vlasov–Fokker–Planck code. Furthermore, it was shown that existing magnetohydrodynamics codes can be modified using the new transport coefficients and made more accurate by up to ten times with a modest computational cost.",
author = "Ridgers, {C. P.} and Thomas, {Alexander George Roy} and Kingham, {R. J.} and Robinson, {A. P. L.}",
year = "2008",
month = sep
day = "1",
doi = "10.1063/1.2978092",
language = "English",
volume = "15",
journal = "Physics of Plasmas",
issn = "1070-664X",
publisher = "American Institute of Physics Inc.",
number = "9",

}

RIS

TY - JOUR

T1 - Transport in the presence of inverse bremsstrahlung heating and magnetic fields

AU - Ridgers, C. P.

AU - Thomas, Alexander George Roy

AU - Kingham, R. J.

AU - Robinson, A. P. L.

PY - 2008/9/1

Y1 - 2008/9/1

N2 - Electron transport in the presence of long (nanosecond) laser pulses can be significantly different from that of magnetohydrodynamics calculations using Braginskii’s transport theory, due to the distortion of the underlying electron distribution function from a Maxwellian. To correctly model the transport under conditions relevant to direct and indirect-drive inertial fusion plasmas, the Vlasov–Fokker–Planck equation for the electrons should be solved; however, this is computationally intensive. Modified transport coefficients have been calculated for a distribution function appropriate to a plasma heated by inverse-bremsstrahlung, i.e., a super-Gaussian. The resulting transport was then compared to a Vlasov–Fokker–Planck code. Furthermore, it was shown that existing magnetohydrodynamics codes can be modified using the new transport coefficients and made more accurate by up to ten times with a modest computational cost.

AB - Electron transport in the presence of long (nanosecond) laser pulses can be significantly different from that of magnetohydrodynamics calculations using Braginskii’s transport theory, due to the distortion of the underlying electron distribution function from a Maxwellian. To correctly model the transport under conditions relevant to direct and indirect-drive inertial fusion plasmas, the Vlasov–Fokker–Planck equation for the electrons should be solved; however, this is computationally intensive. Modified transport coefficients have been calculated for a distribution function appropriate to a plasma heated by inverse-bremsstrahlung, i.e., a super-Gaussian. The resulting transport was then compared to a Vlasov–Fokker–Planck code. Furthermore, it was shown that existing magnetohydrodynamics codes can be modified using the new transport coefficients and made more accurate by up to ten times with a modest computational cost.

U2 - 10.1063/1.2978092

DO - 10.1063/1.2978092

M3 - Journal article

VL - 15

JO - Physics of Plasmas

JF - Physics of Plasmas

SN - 1070-664X

IS - 9

M1 - 092311

ER -