Self-consistent model for a relativistic diamagnetic electron beam

A self-consistent model for a relativistic electron beam is described by the Maxwell-Lorentz hydrodynamic equations. Axisymmetric steady states which are homogeneous in the longitudinal direction are studied in a plasma-filled drift chamber for beam particles with zero thermal velocity spread. Under certain injection conditions, the axial magnetic field of the beam may reverse direction. A model of a solid, completely neutralized beam with a nonzero velocity spread is constructed under the assumption of an infinite ion mass. In this model, the field component B/sub z/ changes sign. The basic characteristics of this model are calculated