NEAR-CATHODE PROCESSES AND THEIR INFLUENCE ON FORM OF CURRENT FLOW IN GAS AND VACUUM DISCHARGE

The complete and non-contradictory description of the wide circle near-cathode processes in base of which there is the self-co-ordinated consideration of the particles emission processes, their ionization in near-cathode field, distortion of the electric field with spatial charges and energy exchange between different sybsystems of the cathode and plasma has been given. It has been proved firstly that in the low pressure discharges including vacuum arc the continuation of the current transfer is provided with formation of the electric potential in interval of the non-monotonous distribution. The non-contradictory interpretation of such discharge physics problems as the "anomal emission" in vacuum arc with diffused fixation of the current, regular arrangement of the cathode spots in gas discharge, mechanism of functioning the diffused vacuum arc on the evaporated gadolinium cathode, mechanism of forming Knudsen's arc etc. has been given firstlyAvailable from VNTIC / VNTIC - Scientific & Technical Information Centre of RussiaSIGLERURussian Federatio