Influence of an Axial Magnetic Field on the Charged Particle Flow from a Conical Cathode in a Gas under Space-Charge-Limited Current Conditions

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Abstract
The influence of a uniform axial magnetic field on the drift of charged particles from the apex of a conical cathode in the surrounding gas is studied. A self-consistent analytical model is developed to describe this influence within the space-charge-limited current regime. Assuming the shape of the drift region to be conical, it is possible to determine the dependence of its opening angle on the electrode angle, the magnitude of the applied magnetic field, and the mobility of charge carriers.

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