Simulation of electrooptical measurements of prebreakdown electric
fields in water. Part 2
Abstract
In this paper, we continue the analysis of electrooptical studies
of the prebreakdown stage in water in the submicrosecond range. We
consider a cathode streamer developing in a system of the spherical
electrodes. Computer simulation of electric showed that at a constant e
= 80, the field strength at the head of the cathode streamer should not
exceed E = 1.9 MV/cm. Taking into account the nonlinearity of the
permittivity e = e(E) made it possible to estimate this field strength
as E ~ 2.4-3.1 MV/cm. It is shown that even with some
excess of the strength over the threshold value (ES
~ 3 MV/cm), at which the state of dipole saturation is
possible; its consideration does not lead to a noticeable change in the
result. Thus, a significant decrease in the field strength near the
cathode streamer compared to the anode streamer was confirmed.
, 
