Title :
Effect of Protrusions on Cathodic-Arc-Attachment Mode in High-Pressure Arc Discharges
Author :
Benilov, Mikhail S. ; Cunha, Mário D. ; Faria, Maria J.
Author_Institution :
Dept. de Fis., Univ. da Madeira, Funchal
Abstract :
It is shown via computer simulations that a protrusion on a thermionic arc cathode may dramatically change the pattern of steady-state modes of current transfer. This happens through a bifurcation of a special type occurring at certain geometry of the cathode and may play a role in operation of electrodes of compact high-intensity discharge lamps.
Keywords :
arcs (electric); bifurcation; discharge lamps; electrochemical electrodes; high-pressure effects; plasma transport processes; bifurcation theory; cathodic-arc-attachment mode; compact high-intensity discharge lamps; computer simulations; current transfer; electrodes; high-pressure arc discharges; protrusions; steady-state modes; thermionic arc cathode; Arc attachment; arc cathode; bifurcation of current transfer; bifurcation theory; high-pressure arc;
Journal_Title :
Plasma Science, IEEE Transactions on
DOI :
10.1109/TPS.2008.920888
