8 research outputs found
Modified Debye-Huckel Electron Shielding and Penetration Factor
Screened potential, modified by non standard electron cloud distributions
responsible for the shielding effect on fusion of reacting nuclei in
astrophysical plasmas, is derived. The case of clouds with depleted tails in
space coordinates is discussed. The modified screened potential is obtained
both from statistical mechanics arguments based on fluctuations of the inverse
of the Debye-Huckel radius and from the solution of a Bernoulli equation used
in generalized statistical mechanics. Plots and tables useful in evaluating
penetration probability at any energy are provided.Comment: 9 pages, 3 figures, 3 table
Effect of a highly energetic electron beam on the electron distribution function in a hot dense plasma: application to an argon plasma
The influence of a highly energetic electron beam on the electron
distribution function (e.d.f.) in a hot dense plasma is investigated by solving the
Boltzmann equation analytically. A plateau is obtained in the tail of the e.d.f. over
an energy range between the excitation threshold and an energy value half that
of the monoenergetic electrons. The importance of this plateau is discussed for a
dense He-like argon plasma.</jats:p