Uniform derivation of Coulomb collisional transport thanks to Debye shielding

Uniform derivation of Coulomb collisional transport thanks to Debye shielding

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 a...

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Veröffentlicht in:Journal of plasma physics 2015-01, Vol.81 (1), p.np-np, Article 305810101
Hauptverfasser: Escande, D. F., Elskens, Yves, Doveil, F.
Format: Artikel
Sprache:eng
Schlagworte:
Chaotic Dynamics
Collisions in Collisionless Plasmas
Coulomb friction
Coulomb potential
Derivation
Logarithms
Mathematical analysis
Nonlinear Sciences
Particle physics
Physics
Plasma Physics
Scattering
Transport
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Zusammenfassung: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.
ISSN:0022-3778
1469-7807
DOI:10.1017/S0022377814000415