Numerical solution of the time-dependent kinetic equation for electrons in magnetized plasma

Russell J Hamilton, Edward T. Lu, Vahé Petrosian

Research output: Contribution to journalArticle

42 Citations (Scopus)

Abstract

A numerical solution is developed for the time-dependent kinetic equation describing the evolution of arbitrary distributions of electrons injected into a magnetized plasma. Included in the equation are pitch-angle scattering and energy loss because of Coulomb collisions and magnetic mirroring. The numerical code can be easily modified to include other scattering or radiation terms. The numerical results are shown to agree well with known analytic solutions for various simplified configurations such as homogeneous injection in a homogeneous plasma, electron beams moving with small pitch angle with respect to the magnetic field, and injection into a magnetic trap. In general, these comparisons show that the difference between the numerical and analytic solutions is less than 10% in any variable provided that the grid size is one-quarter of the size of the required resolution in that variable.

Original languageEnglish (US)
Pages (from-to)726-734
Number of pages9
JournalAstrophysical Journal
Volume354
Issue number2
StatePublished - May 10 1990
Externally publishedYes

Fingerprint

pitch (inclination)
kinetic equations
scattering
injection
Coulomb collisions
plasma
electron
kinetics
electrons
collision
energy dissipation
grids
traps
electron beams
magnetic field
radiation
configurations
magnetic fields
energy
loss

Keywords

  • Numerical methods
  • Particle acceleration
  • Plasmas
  • Radiation mechanisms

ASJC Scopus subject areas

  • Space and Planetary Science

Cite this

Numerical solution of the time-dependent kinetic equation for electrons in magnetized plasma. / Hamilton, Russell J; Lu, Edward T.; Petrosian, Vahé.

In: Astrophysical Journal, Vol. 354, No. 2, 10.05.1990, p. 726-734.

Research output: Contribution to journalArticle

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