Radial theory of the ion current onto a probe in a low-pressure plasma with allowance for volume ionization and collisions with neutrals
Journal Article
·
· Plasma Physics Reports
- Petrozavodsk State University (Russian Federation)
The ion current onto a spherical or cylindrical probe is analyzed in the cold-ion approximation with allowance for ionization and collisions with neutrals. An expression for the ion density that takes into account both ionization and collision in the finite-size perturbed region is derived. The current-voltage characteristics for the dimensionless parameters r{sub p}/{lambda}{sub D} = 0.0001-10, {lambda}{sub i}/{lambda}{sub D} = 0.01 - {infinity}, and z{lambda}{sub D}/(kT{sub e}/M){sup 1/2} = 0-5 are determined by numerically solving Poisson's equation, and the corresponding approximate expressions are obtained.
- OSTI ID:
- 22047537
- Journal Information:
- Plasma Physics Reports, Vol. 37, Issue 4; Other Information: Copyright (c) 2011 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-780X
- Country of Publication:
- United States
- Language:
- English
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