The experiments were conducted as follows: During a single discharge pulse, the plasma potential was measured at five different points, and such a plot is shown. The linear variation of plasma potential with distance across the discharge is a characteristic of all the discharges studied, regardless of the gas mix, applied field, or current density. The plasma potential distribution was extrapolated back to the cathode and the resulting intercept was interpreted as the cathode fall. The cathode fall was measured in this manner for a number of gases, for a range of pressures, current densities, and applied fields. The results of the measurements are summarized. (MOW)
Report Numbers
E 1.99:la-ur-76-1123 E 1.99: conf-760546-1 conf-760546-1 la-ur-76-1123