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

Journal Article · Sun Mar 15 04:00:00 EDT 2015 · Plasma Physics Reports

DOI:https://doi.org/10.1134/S1063780X1503006X· OSTI ID:22472415

Malinin, A. N. ^[1]

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1. Uzhhorod National University (Ukraine)

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.

• OSTI ID: 22472415
• Journal Information: Plasma Physics Reports, Journal Name: Plasma Physics Reports Journal Issue: 3 Vol. 41; ISSN PPHREM; ISSN 1063-780X
• Country of Publication: United States
• Language: English

Related Subjects

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