Main field of study: 010900 Applied Mathematics and Physics
Area of specialization: Electron-Ionic Processes in Liquids and Gases
Department of Radiophysics
Scientific advisor: Associate Professor M. A. Pavleino
Reviewer: Professor A.N.Kluycharev

Simulation of a vacuum arc evolution in the external axial magnetic field
D.Yu. Kirpichenko

In this work, the model of the stationary state vacuum arc is considered. This model is considered as a system of the cathode spots and their plasma jet in the external magnetic field in a system of infinite electrodes. Magnetic field was considered tangential and normal components. Tangential field is a plasma jet field and the normal magnetic field is preassigned. A current density is assumed to be equal to the product of the spot density and the spot current. At the same time, the density of spots is solved transport equation with a source function. The source function includes a stationary distribution function of current spot, the output of which is show in the work.
The model is based on two experimental laws. The first low is the low for velocity of cathode spots on magnetic field components. The second low is the dependence of the voltage on a single spot from the magnetic field components at a fixed current.

The list of publications:
1.	V.P. Afanas’ev, D.Yu. Kirpichenko “Simulation of a vacuum arc in the external axial magnetic field”, Proceeding of the 11th International Symposium “Modern Problems of Electrophysics and Electrohydrodynamics”, 2015. In press.