Transport Phenomena in Stochastic Magnetic Mirrors

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Parallel thermal conduction along stochastic magnetic field lines may be reduced because the heat conducting electrons become trapped and detrapped between regions of strong magnetic field (magnetic mirrors). The problem reduces to a simple but realistic model for diffusion of mono-energetic electrons based on the fact that when there is a reduction of diffusion, it is controlled by a subset of the mirrors, the principle mirrors. The diffusion reduction can be considered as equivalent to an enhancement of the pitch angle scattering rate. Therefore, in deriving the collision integral, the authors modify the pitch angle scattering term. They take into ... continued below

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28 pages

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Malyshkin, Leonid; Kulsrud & Russell August 31, 2000.

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Description

Parallel thermal conduction along stochastic magnetic field lines may be reduced because the heat conducting electrons become trapped and detrapped between regions of strong magnetic field (magnetic mirrors). The problem reduces to a simple but realistic model for diffusion of mono-energetic electrons based on the fact that when there is a reduction of diffusion, it is controlled by a subset of the mirrors, the principle mirrors. The diffusion reduction can be considered as equivalent to an enhancement of the pitch angle scattering rate. Therefore, in deriving the collision integral, the authors modify the pitch angle scattering term. They take into account the full perturbed electron-electron collision integral, as well as the electron-proton collision term. Finally, they obtain the four plasma transport coefficients and the effective thermal conductivity. They express them as reductions from the classical values. They present these reductions as functions of the ratio of the magnetic field decorrelation length to the electron mean free path at the thermal speed V{sub T} = {radical}2kT/m{sub e}. They briefly discuss an application of the results to clusters of galaxies.

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28 pages

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INIS; OSTI as DE00764075

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  • Other Information: PBD: 31 Aug 2000

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  • Report No.: PPPL-3486
  • Grant Number: AC02-76CH03073
  • DOI: 10.2172/764075 | External Link
  • Office of Scientific & Technical Information Report Number: 764075
  • Archival Resource Key: ark:/67531/metadc719956

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Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • August 31, 2000

Added to The UNT Digital Library

  • Sept. 29, 2015, 5:31 a.m.

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  • April 18, 2016, 1:09 p.m.

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Malyshkin, Leonid; Kulsrud & Russell. Transport Phenomena in Stochastic Magnetic Mirrors, report, August 31, 2000; Princeton, New Jersey. (digital.library.unt.edu/ark:/67531/metadc719956/: accessed December 14, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.