Modeling crossed-beam energy transfer for inertial confinement fusion

Journal Article · Sun May 15 00:00:00 EDT 2016 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.4948489· OSTI ID:22600193

Marion, D. J. Y. ^[1]; Masson-Laborde, P. -E.; Loiseau, P.; Casanova, M. ^[1]

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1. CEA, DAM, DIF, F-91297 Arpajon Cedex (France)

We developed a numerical code that describes both the energy transfer occurring when two or more laser beams overlap in a weakly non-homogeneous plasma, and the beam energy losses associated with the electron-ion collisions. The numerical solutions are validated with both the exact analytical solutions in homogeneous plasmas, and with new approximate analytical solutions in non-homogeneous plasmas that include the aforementioned inverse bremsstrahlung effect. Comparisons with kinetic particle-in-cell simulations are satisfactory, provided the acoustic wave-breaking limit and the self-focusing regime are not reached. An application of the Cross-Beam Energy Transfer model is shown for a typical case of indirect-drive implosion in a gold hohlraum.

• OSTI ID: 22600193
• Journal Information: Physics of Plasmas, Vol. 23, Issue 5; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ANALYTICAL SOLUTION
APPROXIMATIONS
BREMSSTRAHLUNG
COLLIDING BEAMS
COMPARATIVE EVALUATIONS
COMPUTERIZED SIMULATION
ELECTRON-ION COLLISIONS
ELECTRONS
ENERGY LOSSES
ENERGY TRANSFER
GOLD
HOMOGENEOUS PLASMA
IMPLOSIONS
INERTIAL CONFINEMENT
IONS
LASERS
NUMERICAL SOLUTION
SOUND WAVES