Influence of Xe{sub 2}{sup +} ions on the micro-hollow cathode discharge driven by thermionic emission

Journal Article · Tue Apr 15 00:00:00 EDT 2014 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.4871487· OSTI ID:22253121

Levko, D. ^[1]; Bliokh, Y. P.; Krasik, Ya. E. ^[2]

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1. LAPLACE (Laboratoire Plasma et Conversion d'Energie), Universite de Toulouse, UPS, INPT Toulouse, 118 Route de Narbonne, F-31062 Toulouse Cedex 9 (France)
2. Department of Physics, Technion, 32000 Haifa (Israel)

The influence of Xe{sub 2}{sup +} dimer ions and excited Xe* atoms on the hollow cathode discharge driven by electron thermionic emission is studied using two-dimensional Particle-in-Cell Monte Carlo Collisions modeling. A comparison with the results of two-component (electrons and Xe{sup +} ions) plasma modeling showed that the presence of the Xe{sub 2}{sup +} dimer ions and excited Xe* atoms in the plasma affects the plasma parameters (density, potential, and ion fluxes toward the cathode). The influence of Xe{sub 2}{sup +} ions and Xe* atoms on the plasma sheath parameters, such as thickness and the ion velocity at the sheath edge, is analyzed.

• OSTI ID: 22253121
• Journal Information: Physics of Plasmas, Vol. 21, Issue 4; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ATOMS
COLLISIONS
COMPARATIVE EVALUATIONS
DIMERS
ELECTRONS
HOLLOW CATHODES
MONTE CARLO METHOD
PLASMA SHEATH
SIMULATION
THERMIONIC EMISSION
THICKNESS
TWO-DIMENSIONAL CALCULATIONS
XENON IONS