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Uniform derivation of Coulomb collisional transport thanks to Debye shielding

Part of: Collisions in Collisionless Plasmas

Published online by Cambridge University Press:  25 July 2014

D. F. Escande ,
Yves Elskens  and
F. Doveil
D. F. Escande*
Affiliation:
Aix-Marseille Université and CNRS, UMR 7345 PIIM, case 321, campus Saint-Jérôme, FR-13013 Marseille, France
Yves Elskens*
Affiliation:
Aix-Marseille Université and CNRS, UMR 7345 PIIM, case 321, campus Saint-Jérôme, FR-13013 Marseille, France
F. Doveil*
Affiliation:
Aix-Marseille Université and CNRS, UMR 7345 PIIM, case 321, campus Saint-Jérôme, FR-13013 Marseille, France
*
†Email address for correspondence: [email protected]
[email protected]
[email protected]
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Abstract

The effective potential acting on particles in plasmas being essentially the Debye-shielded Coulomb potential, the particles collisional transport in thermal equilibrium is calculated for all impact parameters b, with a convergent expression reducing to Rutherford scattering for small b. No cutoff at the Debye length scale is needed, and the Coulomb logarithm is only slightly modified.

Type
Research Article
Information
Journal of Plasma Physics , Volume 81 , Issue 1 , January 2015 , 305810101
Copyright
Copyright © Cambridge University Press 2015 

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