Microwave Study of Positive Ion Collection by Probes
- 15 June 1955
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 98 (6), 1642-1649
- https://doi.org/10.1103/physrev.98.1642
Abstract
The theory of the positive ion saturation region of probes at low pressure is modified to take into account the directed current at the sheath edge. This drift current explains the discrepancy between the theoretical and experimental ratio of the electron saturation probe current to the positive ion saturation probe current. The theory is checked by using microwave methods to obtain an independent measurement of the ion density. Probe and microwave measurements are compared in the pressure region of 0.05-6 mm Hg in hydrogen, argon, and helium.Keywords
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