Abstract
Reactor neutron activation followed by high resolution x-ray spectrometry has been applied to the nondestructive and simultaneous determination of uranium and thorium in geological materials. The L x-rays of Np and Pa obtained from neutron activated U and Th, respectively, were measured with a 100 mm/sup 2/ Si(Li) spectrometer. A limit of detection of 10/sup -2/ mu g for U and 10/sup -1/ mu g for Th was obtained by the irradiation of samples (~ 10 to ~ 100 mg) for 20 minutes at a neutron flux of 10/sup 13/n cm/sup -2/ sec/ sup -1/ and e mploying a 4% counting geometry. The accuracy of the assay is within a few per cent. The different sources of error, as well as the possibilities of minimizing them, were studied. (auth)
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
