The Topography of Surface and Light Transmission by Quartz Windows after Exposure in a High-Frequency Discharge in Deuterium and Mixture of Deuterium with Nitrogenстатья
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 28 июля 2021 г.
Аннотация:The effect of a high-frequency discharge on the change in the topography of the surface of KU-1optical quartz and transmission of visible light (400–1000 nm) is studied. The working gases of the dischargeare D2 and a D2/N2 mixture, in which the fraction of N2 is 25 mol %. The addition of nitrogen increases therate of sputtering from 60 to 300 nm/h without changing the stoichiometry of the surface layers. After theexposure in plasma, the root-mean-square roughness of the surface decreases from 1.3 to 0.6 nm. The transparenceof quartz remains unchanged. The analysis of the roughness and calculation of the diffuse light scatteringwith a wavelength of 400 nm after passing through quartz are executed using the power spectral densityfunctions.