Electronic Resource
[S.l.]
:
American Institute of Physics (AIP)
Journal of Applied Physics
64 (1988), S. 1775-1780
ISSN:
1089-7550
Source:
AIP Digital Archive
Topics:
Physics
Notes:
A framework for a model of the cathode fall region of a dc glow discharge is presented, and a simple model is solved as an illustration. An extremum condition independent of the model is placed on the electric field behavior to produce a unique solution that agrees with experiment. The zeroth and second moments of the Boltzmann equation are solved for the electrons with a self-consistent electric field. A single-beam model with only two parameters (number density and beam velocity) is assumed for the electron distribution function. Ion motion is modeled with a parametric fit to known ion mobilities. The model is solved for conditions corresponding to the experimental results and to Monte Carlo simulations of Doughty, Den Hartog, and Lawler [Phys. Rev. Lett. 58, 2668 (1987)]. The results are in good qualitative and "factor-of-two'' quantitative agreement with the published results.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.341774
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