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  • Title: Radon measurement of natural gas using alpha scintillation cells.
    Author: Kitto ME, Torres MA, Haines DK, Semkow TM.
    Journal: J Environ Radioact; 2014 Dec; 138():205-7. PubMed ID: 25261866.
    Abstract:
    Due to their sensitivity and ease of use, alpha-scintillation cells are being increasingly utilized for measurements of radon ((222)Rn) in natural gas. Laboratory studies showed an average increase of 7.3% in the measurement efficiency of alpha-scintillation cells when filled with less-dense natural gas rather than regular air. A theoretical calculation comparing the atomic weight and density of air to that of natural gas suggests a 6-7% increase in the detection efficiency when measuring radon in the cells. A correction is also applicable when the sampling location and measurement laboratory are at different elevations. These corrections to the measurement efficiency need to be considered in order to derive accurate concentrations of radon in natural gas.
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