Electrostatic discharges and multifractal analysis of their Lichtenberg figures

Morphological features of Lichtenberg figures created by electrostatic separation discharges on the surfaces of electret samples have been studied by means of multifractal analysis. The monofractal ramification of surface positive-channel streamers has been confirmed and found to be dependent on actual experimental conditions. For the lower level of electret saturation used, the fractal dimension of the surface Lichtenberg channels has been obtained. Various registration features of electret and non-electret samples have been discussed and illustrated.

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