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On the transport of charged particles in turbulent fields: comparison of an exact solution with the quasilinear approximation

Jokipii, J. R. and Lerche, I. (1973) On the transport of charged particles in turbulent fields: comparison of an exact solution with the quasilinear approximation. Plasma Physics, 15 (7). pp. 619-625. ISSN 0032-1028. http://resolver.caltech.edu/CaltechAUTHORS:JOKpp73

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Abstract

The problem of charged-particle transport in a magnetic field which is solely a function of time is solved. The solution is obtained exactly, to all orders in the field, in the limit of large wavelengths normal to the magnetic field. It is shown that the usual quasilinear, Fokker-Planck approximation is equal to the exact solution in the limit of times large compared with the correlation time of the fluctuating field. This is just the regime where the approximation has been used in the past, and this special case thus gives some support to the standard approximation techniques.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1088/0032-1028/15/7/002DOIUNSPECIFIED
http://www.iop.org/EJ/abstract/0032-1028/15/7/002PublisherUNSPECIFIED
Additional Information: This work was supported, in part (J.R.J.) by NASA under Grant NGR 05-002-160, and in part (I.L.) by the United States Air Force, Air Force Systems Command under contract F-19628-72-C-0056. [J.R.J. was an] Alfred P. Sloan Foundation Fellow.
Funders:
Funding AgencyGrant Number
NASANGR 05-002-160
Air Force Systems CommandF-19628-72-C-0056
Alfred P. Sloan FoundationUNSPECIFIED
Record Number:CaltechAUTHORS:JOKpp73
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Deposited On:24 Dec 2008 22:25
Last Modified:26 Dec 2012 10:40

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