Dulsed discharge in vapour-gaseous intermixtures of a high pressure helium
V. S. Kurbanismailov, O. A. Omarov, N. A. Ashurbekov,
G. B. Ragimkhanov, M. H. Gadzhiev
The Dagestan State University, Makhachkala, Russia
The experimental and theoretical results of examination of a radiation spectrum for a pulsed discharge in vapour-gaseous intermixtures of a high-pressure helium are surveyed, with easily-ionizable impurities of vapour out of Fe/Al electrodes forming during a breakdown as the result of pulverization of electrodes. On the basis of model operation of experimental datas on the radiation spectrum of a near-electrode plasma, we have learnt a kinetics of population of exited states of atoms from vapours of a electrode methal, which derivate the Penning intermixture with a helium. The reference parameters of the explosive-emission centres are calculated on experimental data for delay times of forming the cathode sports and values of current densities in the near-electrode plasma. Investigated is an influence of electrode material vapour on the volumetric discharge stability at a qualitative level.
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