Boundaries and probes in electronegative plasmas
- 14 December 1988
- journal article
- Published by IOP Publishing in Journal of Physics D: Applied Physics
- Vol. 21 (12) , 1733-1737
- https://doi.org/10.1088/0022-3727/21/12/011
Abstract
A criterion for the positive-ion velocity at the boundary of an electronegative plasma is discussed. The case considered is that in which the negative-ion density obeys the Boltzmann relation. The appropriate physical solution is determined in circumstances where a triple-valued mathematical solution is found. The work has much in common with models of two-electron-temperature plasmas. Under conditions where the theory is valid, the ratio of negative-ion density to positive-ion density can be determined from Langmuir probe characteristics.Keywords
This publication has 8 references indexed in Scilit:
- Plasma boundary layer in the presence of fast primary electronsPhysics of Fluids, 1987
- Some researches on double layersPlasma Physics and Controlled Fusion, 1985
- The coupling of oscillatory plasma boundary motion to an ion acoustic wavePhysics of Fluids, 1984
- Free expansion of a plasma with two electron temperaturesJournal of Plasma Physics, 1979
- A note on the generalized sheath criterionJournal of Physics D: Applied Physics, 1976
- Plasma boundary as a Mach surfaceJournal of Physics A: General Physics, 1970
- The operation of Langmuir probes in electro-negative plasmasProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1959
- The Collection of Positive Ions by a Probe Immersed in a PlasmaProceedings of the Physical Society. Section B, 1957