Current balance at the surface of a cold cathode
- 22 June 1987
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 58 (25) , 2668-2671
- https://doi.org/10.1103/physrevlett.58.2668
Abstract
Recent experimental and theoretical developments, including an electric field diagnostic based on optogalvanic detection of Rydberg atoms, an analytic treatment of ion transport in the cathode fall, and a null collision Monte Carlo technique, are combined to determine the current balance at the surface of a cold cathode in a He glow discharge. The ratio of the ion current to the electron current is measured and calculated over a range of current densities from a near normal to a highly abnormal glow discharge.Keywords
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