To determine the electron heat flux density on macroscopic scales, the most widely used approach is to solve a diffusion equation through a multi-group technique. This method is, however, restricted to transport induced by temperature gradients without accounting for other sources of fast electrons because the electric field induced by the charge separation is indirectly treated. In addition, significant discrepancies are reported in the underlying distribution function when compared to complete kinetic calculations. These limitations motivate the research for alternative reduced kinetic models. The physical content of one of them is here deepened, its precision is improved, and the benefit of its usage compared to other models is discussed.
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June 2022
Research Article|
June 01 2022
Analysis of a kinetic model for electron heat transport in inertial confinement fusion plasmas
A. Chrisment
;
A. Chrisment
a)
1
CEA, DAM, DIF
, F-91297 Arpajon Cedex, France
2
CELIA, Université de Bordeaux, CNRS, CEA, UMR 5107
, F-33405 Talence, France
a)Author to whom correspondence should be addressed: antoine.chrisment@u-bordeaux.fr
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P. Loiseau
;
P. Loiseau
1
CEA, DAM, DIF
, F-91297 Arpajon Cedex, France
3
Université Paris-Saclay, CEA, LMCE
, 91680 Bruyères-le-Châtel, France
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J.-L. Feugeas;
J.-L. Feugeas
2
CELIA, Université de Bordeaux, CNRS, CEA, UMR 5107
, F-33405 Talence, France
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P.-E. Masson-Laborde
;
P.-E. Masson-Laborde
1
CEA, DAM, DIF
, F-91297 Arpajon Cedex, France
3
Université Paris-Saclay, CEA, LMCE
, 91680 Bruyères-le-Châtel, France
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J. Mathiaud
;
J. Mathiaud
2
CELIA, Université de Bordeaux, CNRS, CEA, UMR 5107
, F-33405 Talence, France
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V. Tikhonchuk
;
V. Tikhonchuk
2
CELIA, Université de Bordeaux, CNRS, CEA, UMR 5107
, F-33405 Talence, France
4
ELI-Beamlines Center, Institute of Physics, Czech Academy of Sciences
, 25241 Dolni Brezany, Czech Republic
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Ph. Nicolaï
Ph. Nicolaï
2
CELIA, Université de Bordeaux, CNRS, CEA, UMR 5107
, F-33405 Talence, France
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a)Author to whom correspondence should be addressed: antoine.chrisment@u-bordeaux.fr
Phys. Plasmas 29, 062301 (2022)
Article history
Received:
January 31 2022
Accepted:
May 09 2022
Citation
A. Chrisment, P. Loiseau, J.-L. Feugeas, P.-E. Masson-Laborde, J. Mathiaud, V. Tikhonchuk, Ph. Nicolaï; Analysis of a kinetic model for electron heat transport in inertial confinement fusion plasmas. Phys. Plasmas 1 June 2022; 29 (6): 062301. https://doi.org/10.1063/5.0087007
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