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Title:Vuv fluorescence of jet-cooled water as a vehicle for satellite thruster plume characterization.
Author(s):Young, Justin W.
Contributor(s):Stearns, Jaime A.
Subject(s):Spectroscopy as an analytical tool
Abstract:A quantified characterization of a spacecraft’s thruster plume is obtainable through measurements of fluorescence from the plume. Fluorescence in a plume is due to electronic excitation of a plume’s molecular species, such as water and ammonia, from solar photons. For instance, electronic excitation of water with Lyman-alpha (121.6 nm) causes photodissociation to OH radical by following one of several possible pathways. One pathway leads to an electronically excited OH radical which fluoresces at ~310 nm. Here, the emission spectra of \chem{H_2O} excited at wavelengths ranging from ~128-121 nm are presented and the role of temperature in fluorescence is discussed.
Issue Date:2016-06-22
Publisher:International Symposium on Molecular Spectroscopy
Genre:Conference Paper / Presentation
Rights Information:Copyright 2016 by the authors
Date Available in IDEALS:2017-01-26

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