Plasma screening effects on electron–ion Coulomb bremsstrahlung in uniformly magnetized plasmas

Abstract

Plasma screening effects are investigated on classical bremsstrahlung in electron–ion Coulomb scattering in uniformly magnetized plasmas. The calculation is for the limited case of projectile motion along the magnetic field. The electron–ion interaction potential in uniformly magnetized plasmas has been obtained by the introduction of the longitudinal plasma dielectric function. The classical straight-line trajectory method is applied to the path of the projectile electron in order to investigate the variation of the bremsstrahlung cross section as a function of the impact parameter and plasma parameters. The results shows that the bremsstrahlung cross section is increased with increasing the strength of the magnetic field. The bremsstrahlung cross section for the soft photon radiation is found to be greater than that for the hard photon radiation.