Optical detection and quantification of radiocarbon dioxide (14CO2) at and below ambient levels
Long, David A.
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https://hdl.handle.net/2142/96971
Description
Title
Optical detection and quantification of radiocarbon dioxide (14CO2) at and below ambient levels
Author(s)
Long, David A.
Contributor(s)
Hodges, Joseph T.
Liu, Qingnan
Fleisher, Adam J.
Issue Date
2017-06-19
Keyword(s)
Instrument/technique demonstration
Abstract
Due to their age, fossil fuels and their byproducts are almost entirely depleted in radiocarbon ($^{14}$C). As a result, measurements of radiocarbon provide a unique tracer for determining the origin of products and emissions. Recent efforts at NIST have applied mid-infrared cavity ring-down spectroscopy to measurements of radiocarbon dioxide to allow for more rapid and less expensive measurements than are possible with traditional techniques such as accelerator mass spectrometry. I will discuss our present measurement detection limits and precision as well as discuss limiting noise sources and plans to further improve the instrument’s stability and reproducibility.
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