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Title: Optical characteristics and parameters of gas-discharge plasma in a mixture of mercury dibromide vapor with argon

Results are presented from studies of the optical characteristics and parameters of the plasma of a dielectric barrier discharge in a mixture of mercury dibromide vapor with argon—the working medium of an exciplex gas-discharge emitter. It is established that the partial pressures of mercury dibromide vapor and argon at which the average and pulsed emission intensities in the blue—green spectral region (λ{sub max} = 502 nm) reach their maximum values are 0.6 and 114.4 kPa, respectively. The electron energy distribution function, the transport characteristics, the specific power spent on the processes involving electrons, the electron density and temperature, and the rate constants for the processes of elastic and inelastic electron scattering from the molecules and atoms of the working mixture are determined by numerical simulation, and their dependences on the reduced electric field strength are analyzed. The rate constant of the process leading to the formation of exciplex mercury monobromide molecules for a reduced electric field of E/N = 20 Td, at which the maximum emission intensity in the blue—green spectral region was observed in this experiment, is found to be 8.1 × 10{sup −15} m{sup 3}/s.
Authors:
;  [1]
  1. Uzhhorod National University (Ukraine)
Publication Date:
OSTI Identifier:
22472415
Resource Type:
Journal Article
Resource Relation:
Journal Name: Plasma Physics Reports; Journal Volume: 41; Journal Issue: 3; Other Information: Copyright (c) 2015 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ARGON; COMPUTERIZED SIMULATION; ELASTIC SCATTERING; ELECTRIC DISCHARGES; ELECTRIC FIELDS; ELECTRON DENSITY; ELECTRON TEMPERATURE; ELECTRONS; ENERGY SPECTRA; INELASTIC SCATTERING; MERCURY BROMIDES; MOLECULES; PARTIAL PRESSURE; PLASMA; PLASMA SIMULATION; VAPORS