A tube-excited X-ray fluorescence spectrometer for use in small-diameter boreholes

Clicks: 256
ID: 111058
1970
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Abstract
A portable in-situ x-ray fluorescence analytical system that uses an x-ray tube excitation source and a cooled Si(Li) spectrometer for detecting characteristic emission x rays has been developed for use in small-diameter wells and boreholes. The 15-watt, iron-anode x-ray tube operates up to 30 kV. Three wells at the Sandia National Laboratory Chemical Waste Landfill, lined with 76 μ thick polyethylene, were logged specifically for Cr contamination. Detection limits below 50 ppm were achieved with counting intervals of 600 seconds and with the Si(Li) detector operating at 450-eV resolution (full width at half maximum [FWHM] for the Mn K-alpha x ray).
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Authors J. H. Reeves;R. J. Arthur;R. L. Brodzinski;C. L. Shepard;J. H. Reeves;R. J. Arthur;R. L. Brodzinski;C. L. Shepard;
Journal journal of radioanalytical and nuclear chemistry
Year 1970
DOI
doi:10.1007/BF02041921
URL
https://doi.org/10.1007/bf02041921
Keywords
inorganic chemistry physical chemistry diagnostic radiology nuclear physics heavy ions hadrons nuclear chemistry fwhm tube excited ray fluorescence use in small small diameter boreholes characteristic emission ray tube

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