Current Density Per Cathode Spot in Vacuum Arcs
- 1 January 1984
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Plasma Science
- Vol. 12 (3) , 199-203
- https://doi.org/10.1109/tps.1984.4316319
Abstract
Two methods of computing the current density in a cathode spot of a metal arc are compared. The first method computes the spot area in terms of a crater left on the metal. Detailed arguments are presented as to why this method is not correct. Evidence is presented supporting a second method, that of estimating the cathode spot from the luminous glow observed during the discharge. The current density is estimated to be less than 105 A/cm2 during the lifetime of the spot.Keywords
This publication has 17 references indexed in Scilit:
- The cathode spot of a vacuum arcUspekhi Fizicheskih Nauk, 1978
- Influence of Surface Contaminations on Cathode Processes of Vacuum DischargesContributions to Plasma Physics, 1977
- Diameter and Current Density of Single and Multiple Cathode Discharges in VacuumIEEE Transactions on Power Apparatus and Systems, 1974
- Experimental Evidence of Dynamic Field Emission (DF-emission) within Cathode Spots of Cold Cathode ArcsNature Physical Science, 1973
- ПОВЕДЕНИЕ КАТОДНЫХ П ЯТЕН В СИЛЬНОТОЧНОМ ЭЛЕКТРИЧЕСКОМ РАЗРЯ ДЕCzechoslovak Journal of Physics, 1963
- Resistance Heating in the Arc Cathode Spot ZoneJournal of Applied Physics, 1961
- Electrode Phenomena in Transient ArcsProceedings of the Physical Society. Section B, 1952
- The Behaviour of the Cathode Spot on an Undisturbed Mercury SurfaceProceedings of the Physical Society. Section B, 1949
- A Theory of Liquid Surface Rupture by a Uniform Electric FieldPhysical Review B, 1935
- On Anchoring the Mercury Pool Cathode SpotJournal of Applied Physics, 1935