DYNAMICS OF CHARGED PARTICLES IN TWO-DIMENSIONAL MAGNETIC PRISMS WITH ACCOUNT OF THE INFLUENCE OF FRINGE FIELDS

The analytical formulas developed for the potential of the electrostatic field of deflector plates with grounded screens are applied to the scalar magnetic potential of a two-dimensional magnetic prism with magnetic screens. By defining the induction of the magnetic field of the prism as the gradient of the scalar magnetic potential, we simultaneously analytically describe the fringe fields of the magnet. In this case, to calculate the trajectories of charged particles in a two-dimensional magnetic prism, it is convenient to use Newton's dimensionless equations, which make it possible to take into account the influence of the fringe fields of a magnet on the properties of prisms. The corpuscular-optical characteristics of two-dimensional magnetic prims with magnetic screens in the telescopic focusing mode are calculated taking into account the influence of the fringe fields of the magnet.