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Title: Modified formula of nonlocal electron transport in a laser-produced plasma

Journal Article · · Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics; (United States)
 [1];  [2]
  1. Institute of Applied Physics and Computational Mathematics, P.O. Box 8009, Beijing 100088 (China)
  2. Institute of Applied Physics and Computational Mathematics, P.O. Box 8009, Beijing (China) China Center of Advanced Science Technology (World Laboratory), P.O. Box 8730, Beijing 100080 (China)

A nonlocal heat-transport formula for electrons is derived to include the terms associated with the electrostatic potential and [partial derivative]/[partial derivative][ital v]([ital f][sub 0],[ital f][sub 1]) in the Fokker-Planck (FP) equation. Then the FP equation for a strongly inhomogeneous plasma is solved. It is found that the behavior of the electron thermal conductivity at a large temperature gradient is considerably affected by the electrostatic field, and the thermal conductivity [kappa]/[kappa][sub SH] for electrons scales as 1/[ital k] in a large temperature gradient [ital k] when there exists a non-negligible electrostatic field, where [kappa][sub SH] is the Spitzer-Haerm heat coefficient.

OSTI ID:
7282798
Journal Information:
Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics; (United States), Vol. 50:1; ISSN 1063-651X
Country of Publication:
United States
Language:
English