Modeling of Effect of Axial Magnetic Field on Deuterium Ionization in Vacuum Arc on Deuterium-Saturated Cathode

The simulation of the influence of an external axial magnetic field on the fluxes of ionized and neutral deuterium against the background of a plasma zirconium jet from a group cathode spot is carried out. It is shown that a significant part of deuterium ions leaves the dense plasma jet and do not reach the anode. Application of an external longitudinal magnetic field in the range of 0.5–2 kG increases the final flux of deuterium ions to the anode relatively weakly.