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Intracavity optogalvanic spectroscopy applied to radiocarbon detection
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Liu, Junming. Intracavity optogalvanic spectroscopy applied to radiocarbon detection. Retrieved from https://doi.org/doi:10.7282/T3Q81G3W

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TitleIntracavity optogalvanic spectroscopy applied to radiocarbon detection
NameLiu, Junming (author); Schaden, Martin (chair); Daniel, Murnick (internal member); Wu, Zhen (internal member); Rutgers University; Graduate School - Newark
Date Created2015
Other Date2015-10 (degree)
SubjectPhysics, Applied, Optogalvanic spectroscopy, Radiocarbon dating
Extent1 online resource (vi, 28 p. : ill.)
DescriptionRadiocarbon is extremely useful for archeological dating as well as for clinical, laboratory and atmospheric tracer applications. In this thesis, we report a new physical description of the ICOGS system process of radiocarbon optogalvanic signal extraction and analysis. To be specific, we first describe the fundamental theory of the Optogalvanic effect. Based on a set of 4-energy level rate equations for N2 buffer gas and a set of 2-energy level for CO2 sample gas, we simulate the N2 and CO2 ICOGS OG signals. Moreover, according to the phase difference from our simulation and experiment observation, we propose three methods (1.Vector Phase and Amplitude fitting, 2.Differential Method and 3.Vector Decomposition Method) to separate CO2 OG signal from N2 OG signal. Experimental results demonstrate our quantitative radiocarbon detection near 10 zeptomole14C levels in 10 µg samples.
NoteM.S.
NoteIncludes bibliographical references
Noteby Junming Liu
Genretheses, ETD graduate
Persistent URLhttps://doi.org/doi:10.7282/T3Q81G3W
Languageeng
CollectionGraduate School - Newark Electronic Theses and Dissertations
Organization NameRutgers, The State University of New Jersey
RightsThe author owns the copyright to this work.
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