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Title: Spectroscopic quantification of extremely rare molecular species in the presence of interfering optical absorption

Optical spectrometer apparatus, systems, and methods for analysis of carbon-14 including a resonant optical cavity configured to accept a sample gas including carbon-14, an optical source configured to deliver optical radiation to the resonant optical cavity, an optical detector configured to detect optical radiation emitted from the resonant cavity and to provide a detector signal; and a processor configured to compute a carbon-14 concentration from the detector signal, wherein computing the carbon-14 concentration from the detector signal includes fitting a spectroscopic model to a measured spectrogram, wherein the spectroscopic model accounts for contributions from one or more interfering species that spectroscopically interfere with carbon-14.
Inventors:
; ; ; ; ; ; ;
Issue Date:
OSTI Identifier:
1356288
Assignee:
Lawrence Livermore National Security, LLC LLNL
Patent Number(s):
9,645,077
Application Number:
14/714,658
Contract Number:
AC52-07NA27344
Resource Relation:
Patent File Date: 2015 May 18
Research Org:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

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Cavity ring‚Äźdown spectroscopy for quantitative absorption measurements
journal, February 1995
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