Space Charge Potentials in Cylindrical Geometries Including Temperature Effects |
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| Authors: | E Valdeblanquez P Martín |
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| Institution: | (1) Facultad de Ingeniería, Universidad del Zulia, Apartado 98, Marcacaibo, Venezuela;(2) Departamento de Física, Universidad Simón Bolívar, Apartado 89000, Caracas, Venezuela |
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| Abstract: | The analysis of space-charge in cylindrical geometries has been performed using kinetic theory. The current collected by central electrodes inmersed in plasmas with a discriminant grid has been determined through the Poisson equation and truncated Maxwellian distribution functions for the ions. The electrons are assumed to be repelled by the entrance grid. The non-linear adimensional equations have been solved approximately using linear expansion around the point with zero potential. |
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