Abstract
Abstract The decay process of a Penning discharge has been studied by means of the pulse technique. The discharge cell used had a flat anode and a cold cathode, in front of each of which control grids were placed. Constant negative cut-off voltage and periodical positive square pulse voltage were applied to the grids. In the absence of a pulse, the potential of the grids is lower than that of the cathodes, the secondary emission is eliminated and there is no discharge. In the presence of a pulse, there ia a normal secondary emission from the cathode surfaces and a firing of a self-sustained discharge.Oscillograms of the discharge current at pulsed Penning discharge and different values of the magnetic field, anode voltage and pressure are given. The character of the change of the discharge current after the secondary emission has been eliminated is explained qualitatively on the basis of a simplified discharge model. The average effective coefficient of secondary emission, the quantity of negative space c...
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