Effects of traces of oxygen on Grimm-type glow discharges in argon

Autor:	Viktoria Weinstein, Edward B. M. Steers, Petr Šmíd, Tamara Gusarova, Juliet C. Pickering, Sohail Mushtaq
Rok vydání:	2011
Předmět:	Glow discharge Argon Analytical chemistry chemistry.chemical_element Plasma Oxygen Spectral line Analytical Chemistry symbols.namesake Fourier transform chemistry Sputtering symbols sense organs Optical emission spectroscopy Spectroscopy
Zdroj:	J. Anal. At. Spectrom.. 26:766-775
ISSN:	1364-5544 0267-9477
Popis:	We report results of studies using Fourier Transform Optical Emission Spectroscopy (FT-OES) to investigate the effects of added oxygen (0.04–0.8% v/v) on observed spectra from a Grimm-type glow discharge, generated in argon plasma with a pure iron sample. Significant changes in the sputter rate and the intensities of atomic lines of the carrier gas and sample in the presence of oxygen are discussed in detail; these changes are greater than those observed with Ar/H2 and Ar/N2 mixtures. A detailed study of spectral line profiles shows changes in self-absorption of Ar I lines due to O2 and H2 traces. The sputter rate for a given Ar/O2 gas mixture is found not to be proportional to current.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::f7b29266d05f6b0b5144a910a0d129ec https://doi.org/10.1039/c0ja00013b Zobrazit plný text záznamu