Title :
Open problems in the physics of volume H-/D- sources
Author :
Capitelli, Mario ; Gorse, Claudine
Abstract :
Old and new problems in the physics of magnetic multipole sources for the production of negative H-/D- ions are presented and discussed. We emphasize particularly, in this kind of plasmas, both the vibrational and electron nonequilibrium energy distributions, the role of Rydberg states in enhancing the negative ion production, the production of vibrationally excited states by atomic recombination on surfaces through different mechanisms, and the enhancement of negative ion concentrations in pulsed discharges.
Keywords :
Rydberg states; deuterium; discharges (electric); hydrogen ions; negative ions; plasma sources; plasma-wall interactions; H2-D2; Rydberg states; atomic recombination; electron nonequilibrium energy distribution; magnetic multipole sources; negative ion concentrations; negative ion production; pulsed discharges; vibrational energy distribution; vibrationally excited states; volume sources; Electrons; Fault location; Ion sources; Physics; Plasma chemistry; Plasma sources; Production; Radio frequency; Surface discharges; Voltage; Rydberg states; dissociative attachment; ion sources; negative ions; vibrational distributions;
Journal_Title :
Plasma Science, IEEE Transactions on
DOI :
10.1109/TPS.2005.860084
