JOURNAL OF PLASMA PHYSICS, v. 67, issue. 2-3, page. 191-197
Abstract
The classical electron.ion Coulomb bremsstrahlung process is investigated
in a nonideal plasma. An effective pseudopotential model taking into account
plasma-screening and collective effects is applied to describe the electron.ion interaction
potential in a nonideal plasma. The screened hyperbolic-orbit trajectory
method is applied to the motion of the projectile electron in order to investigate
the bremsstrahlung radiation cross-section as a function of the scaled impact
parameter, eccentricity, nonideal-plasma parameter, Debye length, projectile
energy, and photon energy. It is found that the collective effect reduces the bremsstrahlung
radiation cross-section on both the soft- and hard-photon cases. For small
impact parameters, the nonideal-plasma effect on the bremsstrahlung radiation
cross-section is found to be quite small. It is also found that the maximum position
of the bremsstrahlung radiation cross-section gets closer to the target ion with
increasing nonideal-plasma effect.