Transition scattering of waves on charged dust particles in a plasma

V. N. Tsytovich, U. de Angelis, R. Bingham

Research output: Contribution to journalArticle

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Abstract

We consider the transition scattering of waves on charged dust particles in a plasma. The scattered power is first derived from perturbation theory, for the case of weakly charged grains, where linear screening by the plasma particles can be assumed. In the case of a highly charged grain we first determine the nonlinear screening by the plasma particles, in a model where the grain can be treated as a small spherical probe at floating potential, and then solve the nonlinear transition scattering due to the electron shielding cloud. One of the results of our calculation is that the radiation pressure on the grains can be greatly enhanced with respect to the case of usual Thomson scattering on free particles, and some possible astrophysical consequences are discussed.
LanguageEnglish
Pages429-443
Number of pages15
JournalJournal of Plasma Physics
Volume42
Issue number3
DOIs
Publication statusPublished - Dec 1989

Fingerprint

dust
scattering
screening
Thomson scattering
radiation pressure
floating
shielding
astrophysics
perturbation theory
probes
electrons

Keywords

  • astrophysics
  • charged particles
  • mathematical techniques
  • perturbation techniques
  • charged dust particles
  • Thomson scattering
  • plasmas

Cite this

Tsytovich, V. N. ; Angelis, U. de ; Bingham, R. / Transition scattering of waves on charged dust particles in a plasma. In: Journal of Plasma Physics. 1989 ; Vol. 42, No. 3. pp. 429-443.
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Transition scattering of waves on charged dust particles in a plasma. / Tsytovich, V. N.; Angelis, U. de; Bingham, R.

In: Journal of Plasma Physics, Vol. 42, No. 3, 12.1989, p. 429-443.

Research output: Contribution to journalArticle

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T1 - Transition scattering of waves on charged dust particles in a plasma

AU - Tsytovich, V. N.

AU - Angelis, U. de

AU - Bingham, R.

PY - 1989/12

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N2 - We consider the transition scattering of waves on charged dust particles in a plasma. The scattered power is first derived from perturbation theory, for the case of weakly charged grains, where linear screening by the plasma particles can be assumed. In the case of a highly charged grain we first determine the nonlinear screening by the plasma particles, in a model where the grain can be treated as a small spherical probe at floating potential, and then solve the nonlinear transition scattering due to the electron shielding cloud. One of the results of our calculation is that the radiation pressure on the grains can be greatly enhanced with respect to the case of usual Thomson scattering on free particles, and some possible astrophysical consequences are discussed.

AB - We consider the transition scattering of waves on charged dust particles in a plasma. The scattered power is first derived from perturbation theory, for the case of weakly charged grains, where linear screening by the plasma particles can be assumed. In the case of a highly charged grain we first determine the nonlinear screening by the plasma particles, in a model where the grain can be treated as a small spherical probe at floating potential, and then solve the nonlinear transition scattering due to the electron shielding cloud. One of the results of our calculation is that the radiation pressure on the grains can be greatly enhanced with respect to the case of usual Thomson scattering on free particles, and some possible astrophysical consequences are discussed.

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KW - charged particles

KW - mathematical techniques

KW - perturbation techniques

KW - charged dust particles

KW - Thomson scattering

KW - plasmas

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