Potential distribution in an ion sheath of non-Maxwellian plasma
- Department of Physics, Technion, 32000 Haifa (Israel)
A model is suggested that shows that in a plasma with a group of fast (non-Maxwellian) electrons, a nonmonotonic distribution of the potential can be formed inside the ion sheath with the potential maximum larger than the biased electrode potential. It was shown that the excess of the maximum potential above the biased electrode potential value depends on the ratio between the density of non-Maxwellian electrons and the density of the plasma bulk electrons. The results obtained in experiments with a hollow anode plasma source, which is characterized by the existence of a fast electron group, qualitatively agree with the model predictions.
- OSTI ID:
- 20860152
- Journal Information:
- Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 7 Vol. 13; ISSN PHPAEN; ISSN 1070-664X
- Country of Publication:
- United States
- Language:
- English
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