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

Abstract

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:
; ; ; ; ; ; ;
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1356288
Patent Number(s):
9,645,077
Application Number:
14/714,658
Assignee:
Lawrence Livermore National Security, LLC LLNL
DOE Contract Number:  
AC52-07NA27344
Resource Type:
Patent
Resource Relation:
Patent File Date: 2015 May 18
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Ognibene, Ted, Bench, Graham, McCartt, Alan Daniel, Turteltaub, Kenneth, Rella, Chris W., Tan, Sze, Hoffnagle, John A., and Crosson, Eric. Spectroscopic quantification of extremely rare molecular species in the presence of interfering optical absorption. United States: N. p., 2017. Web.
Ognibene, Ted, Bench, Graham, McCartt, Alan Daniel, Turteltaub, Kenneth, Rella, Chris W., Tan, Sze, Hoffnagle, John A., & Crosson, Eric. Spectroscopic quantification of extremely rare molecular species in the presence of interfering optical absorption. United States.
Ognibene, Ted, Bench, Graham, McCartt, Alan Daniel, Turteltaub, Kenneth, Rella, Chris W., Tan, Sze, Hoffnagle, John A., and Crosson, Eric. Tue . "Spectroscopic quantification of extremely rare molecular species in the presence of interfering optical absorption". United States. doi:. https://www.osti.gov/servlets/purl/1356288.
@article{osti_1356288,
title = {Spectroscopic quantification of extremely rare molecular species in the presence of interfering optical absorption},
author = {Ognibene, Ted and Bench, Graham and McCartt, Alan Daniel and Turteltaub, Kenneth and Rella, Chris W. and Tan, Sze and Hoffnagle, John A. and Crosson, Eric},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue May 09 00:00:00 EDT 2017},
month = {Tue May 09 00:00:00 EDT 2017}
}

Patent:

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