Theory of stepped pulses in negative corona discharges.

摘要: Theoretical calculations are presented which account for the development of step observed on leading edge current pulse in a negative point-plane corona (Trichel pulse). The theory explains terms independent photon and ion secondary processes at cathode. It is applied specifically to describe shape an experimentally determined from 2-mm-diam point located 20 mm positive plane oxygen 6.67 kPa. secondary-emission coefficients be ${\ensuremath{\gamma}}_{p}$=2\ifmmode\times\else\texttimes\fi{}${10}^{\mathrm{\ensuremath{-}}4}$ (photon secondaries) ${\ensuremath{\gamma}}_{i}$=0.12 (ion secondaries).