Determination of U and Ra in rock samples by gamma-spectrometric method

A. Chouak, P. Vuister, G. Paic, M. Berrada, J. Csikai

Research output: Contribution to journalArticle

6 Citations (Scopus)


A gamma-spectrometric method independent of radon escape for the determination of U and Ra in rock samples based on the 63 keV and 1001 keV as well as 185 keV lines is described and discussed. A simple experimental procedure is given for the determination of the self-absorption factor. The method has been applied for the determination of uranium and radium in rock samples from Morocco containing uranium between 17.5 wt.% and 0.026 wt.%. The limits of determination, at 95% confidence level and 10% standard deviation, for the 63 keV and 1001 keV lines were found to be 0.075 wt.% and 0.62 wt.%, respectively, using samples of 6 g and chosing 1 h measuring time.

Original languageEnglish
Pages (from-to)445-451
Number of pages7
JournalJournal of Radioanalytical Chemistry
Issue number2
Publication statusPublished - Sep 1978

ASJC Scopus subject areas

  • Molecular Medicine
  • Radiology Nuclear Medicine and imaging

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