Development of a nonequilibrium microwave discharge at the end of a cylindrical electrode in nitrogen at reduced pressures
- Russian Academy of Sciences, Topchiev Institute of Petrochemical Synthesis (Russian Federation)
- Electronics, and Automation, Moscow State Institute of Radioengineering (Russian Federation)
Excitation of a microwave discharge at the end of a cylindrical electrode in nitrogen at a pressure of 1 Torr and incident powers of 60-140 W was investigated experimentally by using K-008 and K-011 video cameras and analyzing oscillograms of discharge emission. The times during which the discharge is established in the radial and axial directions are found to be on the order of 10{sup -4} and 10{sup -2} s, respectively. The results obtained are analyzed using one-dimensional simulations of a discharge in nitrogen in a quasistatic approximation. The kinetic scheme includes 50 processes involving electrons, ions, and excited molecules and atoms. The time evolution of the concentrations of molecular nitrogen in the N{sub 2}(C{sup 3}II{sub u}) and N{sub 2}(B{sup 3}II{sub g}) states, responsible for the recorded discharge emission, is compared with the experimental data.
- OSTI ID:
- 21443601
- Journal Information:
- Plasma Physics Reports, Vol. 36, Issue 2; Other Information: DOI: 10.1134/S1063780X10020091; Copyright (c) 2010 Pleiades Publishing, Ltd.; ISSN 1063-780X
- Country of Publication:
- United States
- Language:
- English
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