Transfer matrix of a Glaser magnet used for focusing charged particles in beam lines

Abstract

Glaser magnets are used in low energy beam lines for focusing ion beams and electrons. These are basically solenoid magnets with the difference that iron poles are inserted inside to enhance the field and thus the focal power. The field in a Glaser magnet is nearly Lorentzian. The transfer matrix, necessary for calculating the beam envelope through the magnet, is available for solenoids. But this is not available in the literature for Glaser magnets. We have calculated the transfer matrix for a Glaser magnet.