Laser-Based Detection of Trace Level Contaminants


Dual-etalon, frequency-comb cavity ring-down<br/>spectrometer: a broad-bandwidth laser beam is<br/>directed through two etalon cavities, and the<br/>combined ring-down signals are collected on a single<br/>detector, yielding a high-resolution absorption<br/>spectrum spanning the bandwidth of the laser pulse.
Dual-etalon, frequency-comb cavity ring-down
spectrometer: a broad-bandwidth laser beam is
directed through two etalon cavities, and the
combined ring-down signals are collected on a single
detector, yielding a high-resolution absorption
spectrum spanning the bandwidth of the laser pulse.
Sandia National Laboratories (SNL)
Website:  SNL - Sandia National Laboratories - CA
Award Number:  FWP-10-014451
Project Duration:  02/01/2009 – 09/30/2014
Total Award Value:  $350,000
DOE Share:  $350,000
Performer Share:  $0
Technology Area:  Plant Optimization Technologies
Key Technology:  Sensors and Controls
Location:  Livermore, California

Project Description

The primary goal of this research program is the development of an instrument for high-sensitivity, real-time detection of elemental selenium (SeO) and selenium dioxide (SeO2). This instrument will employ laser-induced fluorescence (LIF) detection schemes selective for the species of interest, thereby enabling in situ monitoring of selenium compounds in the flue gas.

Project Benefits

This project is developing instrumentation for high-sensitivity, simultaneous real-time detection of multiple trace-level components of fossil fuel combustion. These advancements have the potential for greater emissions control with advanced sensors that can operate with high-sensitivity, specificity, and a fast response time. Ultimately, by allowing accurate and rapid measurement of the combustion flue gases of a boiler, this technology could help lower operating costs through better control of power plant operation.

Contact Information

Federal Project Manager 
Steven Seachman:
Technology Manager 
Robert Romanosky:
Principal Investigator 
Scott Bisson:

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