Nonlocal electron transport in the presence of high-intensity laser irradiation

Journal Article · Mon Aug 01 04:00:00 EDT 1994 · Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics; (United States)

DOI:https://doi.org/10.1103/PhysRevE.50.1697· OSTI ID:7252688

Epperlein, E M; Short, R W ^[1]

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1. Laboratory for Laser Energetics, University of Rochester, 250 East River Road, Rochester, New York 14623-1299 (United States)

We investigate electron transport in a plasma heated by spatially modulated laser irradiation. When the heating rate is greater than the electron-electron collision rate, the thermal conductivity is reduced by a factor of 3 to 4 from the Spitzer-Haerm [Phys. Rev. 89, 977 (1953)] value for [ital K][lambda][sub [ital e]][lt]0.01 and is less affected by nonlocal heat-transport effects for [ital k][lambda][sub [ital e]][much gt]1, where [lambda][sub [ital e]] is the electron mean free path and [ital k] is the perturbation wave number. Implications for thermal filamentation will be discussed.

• DOE Contract Number: FC03-92SF19460
• OSTI ID: 7252688
• Journal Information: Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics; (United States), Journal Name: Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics; (United States) Vol. 50:2; ISSN 1063-651X; ISSN PLEEE8
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700330* -- Plasma Kinetics
Transport
& Impurities-- (1992-)
COLLISIONS
COMPUTER CALCULATIONS
DIFFERENTIAL EQUATIONS
DISTRIBUTION FUNCTIONS
ELECTROMAGNETIC RADIATION
ELECTRON COLLISIONS
ELECTRON-ELECTRON COLLISIONS
ENERGY TRANSFER
EQUATIONS
FOKKER-PLANCK EQUATION
FUNCTIONS
HEAT TRANSFER
HEATING
LASER RADIATION
MEAN FREE PATH
MODULATION
PARTIAL DIFFERENTIAL EQUATIONS
PLASMA HEATING
RADIATIONS
THERMAL CONDUCTION