Discharge spatial nonuniformity in e-beam-sustainer CO2 lasers

Abstract

The discharge in an electron-beam-sustainer atmospheric pressure CO2 laser is investigated. An arbitrary two-dimensional geometry is employed in calculating the electric field. The conductivity is a function of the local electric field, the loss rate, and the ionization rate, the third of which is proportional to the energy deposition by high-energy electrons. The predicted discharge nonuniformities are compared with experimental results. Experimental evidence indicates that the discharge is recombination dominated.

Design Optimization of Systems Governed by Partial Differential Equations. Phase 1

“…were useful (particularly that of Ref. 23 It involves a highly nonlinear coupling with the above) for steady problems, the approach has temperature field, also solved by integration of generally been found to be of inadequate a time-dependent energy equation, with simple accuracy and has been abandoned in favor of a empirical relations for electron drift velocity. more fundamental approach.…”