EFFECT OF PRESSURE AND VOLTAGE ON SPHERICAL PLASMA FOCUS DYNAMICS

Abstract

A spherical plasma focus device with two concentric electrodes is simulated using deuterium and tritium mixture (50:50) as aworking gas. The developed model is used to study the effect of gas pressure and charging voltage on dynamics of currentsheath in spherical plasma focus. While charging voltage is varied from 15 kV to 30 kV to see the effect of voltage, gas pressureis increased from 1 Torr to 20 Torr for gas pressure study. In this work, it is found that there is a strong correlation betweencurrent sheath dynamics and investigated parameters which are gas pressure and charging voltage.