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An Investigation of Boundary Theories for the Resonance Probe
Author(s) -
Kostelnicek R. J.
Publication year - 1968
Publication title -
radio science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.371
H-Index - 84
eISSN - 1944-799X
pISSN - 0048-6604
DOI - 10.1002/rds196834319
Subject(s) - debye sheath , resonance (particle physics) , reflection (computer programming) , admittance , boundary (topology) , plasma , homogeneous , physics , boundary value problem , ion , atomic physics , mechanics , optics , electrical impedance , mathematics , mathematical analysis , quantum mechanics , computer science , thermodynamics , programming language
A formula for the admittance of a spherical probe in a warm collisional homogeneous plasma is derived using a step ion sheath with complete electron reflection at the sheath‐plasma interface. The resulting equations for the perturbations in sheath voltage and number density at the interface are related to the resonance probe phenomenon. Laboratory measurements displayed the effect of sheath thickness on the resonance probe characteristic. The rigid boundary theory is experimentally shown to break down at sheath collapse, comparing a suitable absorptive boundary theory with the experiment.