ESTIMATION OF ELECTRIC FIELD OF A MARX GENERATOR

Abstract

Marx generators find importance in defense, medical and civilian applications. For the existing Marx at BARC, an attempt is made to improve the magnitude of peak current and reduce the full width half maximum duration of the output waveform. A new configuration is proposed to achieve the desired values. Existing Marx is enclosed in a closed steel cylindrical shell of diameter 53cm, which is used as a current return path. In the proposed configuration, the return path is a plane copper sheet of 4mm thickness placed above the forward path. Perspex sheet of 25mm thickness is placed between the forward and return path to provide adequate insulation, to avoid flashover or breakdown. ANSYS software is used to compute the electric field distribution on the Perspex sheet used in the proposed configuration.