Title :
Optimum Extraction From a CHORDIS by Pressure Variation
Author :
Schlegel, Christian ; Scholz, Frank ; Bethke, Gabriela ; Gläser, Michael
Author_Institution :
Phys.-Tech. Bundesanstalt, Braunschweig
Abstract :
The influence of the working gas pressure on the extraction behavior of ion beams out of a cold or hot reflex discharge ion source was investigated using xenon ions in the energy range from 17 to 30 keV. Optimal extraction conditions were achieved by transmission measurements through a 90 doubly focusing dipole magnet. The measured currents obtained at the optimized transmission reproduce the Child-Langmuir equation. The results are compared with IGUN simulations of the extraction system.
Keywords :
ion beams; ion sources; plasma sources; xenon; CHORDIS; Child-Langmuir equation; IGUN simulation; Xe; cold or hot reflex discharge ion source; doubly focusing dipole magnet; electron volt energy 17 keV to 30 keV; ion beam extraction; optimal extraction condition; pressure variation; working gas pressure; xenon ions; Equations; Fault location; Ion beams; Ion sources; Plasma confinement; Plasma density; Plasma displays; Plasma sources; Voltage; Xenon; Child–Langmuir law; IGUN simulations; cold or hot reflex discharge ion source (CHORDIS); ion source; pressure variation;
Journal_Title :
Plasma Science, IEEE Transactions on
DOI :
10.1109/TPS.2007.913896
