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  • Title: Optical Diagnostics in the Gaseous Electronics Conference Reference Cell.
    Author: Hebner GA, Greenberg KE.
    Journal: J Res Natl Inst Stand Technol; 1995; 100(4):373-382. PubMed ID: 29151748.
    Abstract:
    A number of laser-induced fluorescence and absorption spectroscopy studies have been conducted using Gaseous Electronics Conference Reference Cells. Laser-induced fluorescence has been used to measure hydrogen atom densities, to measure argon metastable spatial profiles, to determine the sheath electric field, and to infer the electron density and temperature. Absorption spectroscopy, using lamp sources and diode lasers, has been used to measure metastable atom densities in helium and argon discharges and fluorocarbon densities in silicon etching discharges. The experimental techniques and sample results of these investigations are reviewed.
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