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Delayed‐Neutron Activation Determination Of Uranium in Twelve Rock Reference Standards
Author(s) -
LEDGER E.B.,
TIEH T.T.,
ROWE M.W.
Publication year - 1980
Publication title -
geostandards newsletter
Language(s) - English
Resource type - Journals
eISSN - 1751-908X
pISSN - 0150-5505
DOI - 10.1111/j.1751-908x.1980.tb00281.x
Subject(s) - uranium , neutron activation analysis , neutron activation , radiochemistry , epithermal neutron , mineral , enriched uranium , mineralogy , environmental science , neutron , geology , chemistry , neutron temperature , materials science , metallurgy , nuclear physics , physics
The uranium content of twelve rock reference samples, five from the Canada Centre for Mineral and Energy Technology, four from the Czechoslovakian Institute of Mineral Raw Materials and three from the United States Geological Survey was determined by neutron activation followed by delayed‐neutron counting. Uranium contents measured ranged from 0.20 to 560 ppm. Three of the Canadian samples have relatively well established uranium contents. Of these we agree well with two of them; our value on the third is ∼13% lower than the recommended value. Comparison of our data on the other samples with other researchers is not yet possible because (i) no determinations are yet reported on several of these samples and (ii) even when several reported values are available, the wide disparity of those values does not allow meaningful comparison.