Study of the discharge of a multicusp ion source operating with H2and D2
- 14 September 1991
- journal article
- Published by IOP Publishing in Journal of Physics D: Applied Physics
- Vol. 24 (9) , 1533-1540
- https://doi.org/10.1088/0022-3727/24/9/004
Abstract
The plasma parameters and relative positive and negative ion concentrations in a small, filtered, multicusp ion source, operating at low plasma density (11 cm-3) with both hydrogen and deuterium gas have been measured using a Langmuir probe and a small mass spectrometer. Under identical source operating conditions the plasma density in D2 is found always to be higher than in H2, while the negative ion density is found to be consistently lower in D2 then in H2. The effect of the different isotopes on transport processes in the discharge can be understood in terms of a simple model. The isotope effect on molecular processes is also discussed.Keywords
This publication has 24 references indexed in Scilit:
- Comparison of H− and D− production in a magnetically filtered multicusp sourceReview of Scientific Instruments, 1990
- Plasma parameter characterization of a tandem multicusp ion source operating in H2 and D2Review of Scientific Instruments, 1990
- Small multicusp H− sourceReview of Scientific Instruments, 1988
- Electron energy distribution function measurements in a magnetic multipole plasmaJournal of Physics D: Applied Physics, 1987
- Plasma parameter measurements in a tandem multipole hydrogen plasmaVacuum, 1986
- Langmuir probe technique for plasma parameter measurement in a medium density dischargeReview of Scientific Instruments, 1986
- Small mass spectrometer probe for analyzing hydrogen ion speciesReview of Scientific Instruments, 1985
- Extraction of volume-produced H− ionsReview of Scientific Instruments, 1985
- Pressure and electron temperature dependence of H− density in a hydrogen plasmaJournal of Applied Physics, 1981
- Static Theory of a Discharge Column at Intermediate PressuresPhysics of Fluids, 1966