7 research outputs found
An exact solution of the moving boundary problem for the relativistic plasma expansion in a dipole magnetic field
An exact analytic solution is obtained for a uniformly expanding, neutral,
highly conducting plasma sphere in an ambient dipole magnetic field with an
arbitrary orientation of the dipole moment in the space. Based on this solution
the electrodynamical aspects related to the emission and transformation of
energy have been considered. In order to highlight the effect of the
orientation of the dipole moment in the space we compare our results obtained
for parallel orientation with those for transversal orientation. The results
obtained can be used to treat qualitatively experimental and simulation data,
and several phenomena of astrophysical and laboratory significance.Comment: 7 pages, 2 figures. arXiv admin note: substantial text overlap with
arXiv:physics/060323
Correlated Fast Ion Stopping in Magnetized Classical Plasma
The results of a theoretical investigation on the stopping power of ion pair
in a magnetized electron plasma are presented, with particular emphasis on the
two-ion correlation effects. The analysis is based on the assumptions that the
magnetic field is classically strong (, where
, and are respectively the electron de Broglie
wavelength, Larmor radius and Debye length) and that the velocity of the two
ions is identical and fixed. The stopping power and % vicinage function in a
plasma are computed by retaining two-ion correlation effects and is compared
with the results of the individual-projectile approximation.Comment: LaTeX, 7 pages, 4 figure