Optimum Extraction From a CHORDIS by Pressure Variation

Author

Schlegel, Christian ; Scholz, Frank ; Bethke, Gabriela ; Gläser, Michael

Author_Institution

Phys.-Tech. Bundesanstalt, Braunschweig

Volume

36

Issue

1

fYear

2008

Firstpage

169

Lastpage

173

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;

fLanguage

English

Journal_Title

Plasma Science, IEEE Transactions on

Publisher

ieee

ISSN

0093-3813

Type

jour

DOI

10.1109/TPS.2007.913896

Filename

4448405