Journal
PHYSICS OF PLASMAS
Volume 7, Issue 7, Pages 3084-3088Publisher
AIP Publishing
DOI: 10.1063/1.874162
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The area of the sheath around a thin, disk-shaped electrode that is biased below the plasma potential has been computed using a hybrid simulation with cold, collisionless ions and Boltzmann electrons. That is, the collecting area of a double-sided, planar Langmuir probe has been determined for the ion saturation current regime. Sheath areas are calculated for probe radii from 10 to 45 electron Debye lengths and for probe biases from -5 to -30 times the electron temperature. The dependence of the sheath area on probe radius and bias is parameterized using simple empirical formulas. (C) 2000 American Institute of Physics. [S1070-664X(00)04807-2].
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