Computer simulation of ion beam-plasma interaction

In the paper a two-dimensional axisymmetric hybrid numerical model of the interaction of an ion beam with a plasma is presented. The model is based on the kinetic approximation for the ions whereas the electrons are assumed to be a fluid. To solve the Vlasov kinetic equation, the author's modification of the particle in cells method (PIC) is used. It was shown that the magnetic flux can be expelled from the volume filled by the plasma due to the plasma-beam interaction. The dynamics of the magnetic field cavity formation depending on the characteristics of the ion beam and the background plasma is investigated.