Optical Characteristics of an Electric-Discharge Source of Ultraviolet Radiation Based on a Mixture of Argon with Heavy Water (D_2O) Vapor

摘要

The optical characteristics of a barrier discharge in a mixture of heavy water vapor with argon in the wavelength region 200-315 nm are presented. The dependence of the radiation intensity of the OD (A → X) band at λ = 309 nm on the partial pressure of the D_2O vapor is studied, the mechanism of hydroxyl formation in the plasma is considered, and optimal compositions of pollution-free and inexpensive mixtures based on Ar-D_2O are determined for application in UV lamps, which are promising for use in photomedicine.