Bulg. J. Phys. vol.33 no.s3 (2006), pp. 242-247

Axial Distribution of the Charged and Excited Particles in Atmospheric-Pressure Argon Capillary Plasma Column

M. Pencheva1, Ts. Petrova1, E. Benova2, I. Zhelyazkov1
1Faculty of Physics, University of Sofia, 5 James Bourchier Blvd., BG-1164 Sofia, Bulgaria
2Department of Language Learning, University of Sofia, 27 Kosta Loulchev Street, BG-1111 Sofia, Bulgaria
Abstract. The axial profiles of the electron number density and the densities of argon excited states as well as the densities of the atomic Ar+ and molecular Ar2+, Ar3+ ions are obtained using a self-consistent model, which includes an electrodynamic and a kinetic part. The electron and heavy particles balance equations, involved in the kinetic part of the model, are solved together with Maxwell's equations in the electrodynamic part. The argon ground state and seven excited states (4s, 4p, 3d, 5s, 5p, 4d, 6s) considered as blocks of levels are taken into account in the kinetic part of the model.

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