A simple method for the determination of uranium and thorium by delayed neutron counting

Rolf Rosenberg

Research output: Contribution to journalArticleScientificpeer-review

14 Citations (Scopus)

Abstract

A simple method for the determination of uranium and thorium by delayed neutron counting is described. One portion of the sample is irradiated in a reactor and the delayed neutrons are counted. Another portion of the sample is mixed with B4 C powder absorbing the thermal neutrons, and irradiated in the same position. From those data, both uranium and thorium can be calculated when a quantitative calibration has been made beforehand. The detection limits for the pure elements are 0.07 ppm for uranium and 2 ppm for thorium with the minimum analyzing time being 2 min. The accuracy of the method is investigated by comparing results obtained by the method described here with results obtained by epithermal activation analysis.

Original languageEnglish
Pages (from-to)145 - 149
Number of pages5
JournalJournal of Radioanalytical Chemistry
Volume62
Issue number1-2
DOIs
Publication statusPublished - 1981
MoE publication typeA1 Journal article-refereed

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