Speaker
Description
Pulsed electrical discharges in dielectric liquids are intensively studied due to the
wide range of applications in which they are implicated. Despite the simplicity of the experimental
manipulation of these discharges, the underlying fundamental physics is relatively complex. In this
study, we use the electrical characteristics, voltage and current, of pulsed discharges in water
(various applied voltage and pulse width conditions) to determine the equivalent electrical circuit of
the plasma. Based on a Mayr-type model, the plasma resistance is time dependent, but the
inductance is not. Considering that plasma resistivity also depends on electron density and
temperature (Spitzer formula), the temporal evolution of these two parameters were also
determined.
