RADON EMANATION STUDY OF URANIUM ORE SAMPLES FROM NE NIGERIA

Authors
FUNTUA II ONOJAH A JONAH SA JIMBA BW UMAR IM
Citation
Ii. Funtua et al., RADON EMANATION STUDY OF URANIUM ORE SAMPLES FROM NE NIGERIA, Applied radiation and isotopes, 48(6), 1997, pp. 867-869
Citations number
7
Categorie Soggetti
Nuclear Sciences & Tecnology","Radiology,Nuclear Medicine & Medical Imaging","Chemistry Inorganic & Nuclear
Journal title
Applied radiation and isotopes
ISSN journal
09698043 → ACNP
Volume
48
Issue
6
Year of publication
1997
Pages
867 - 869
Database
ISI
SICI code
0969-8043(1997)48:6<867:RESOUO>2.0.ZU;2-M
Abstract
The radon emanation fraction of rhyotite and granite uranium ore sampl es from N. E. Nigeria, essentially phospho-uranylite and meta-autunite , and the variation of recorded gamma-ray activity with particle size are presented. The results indicate emanation fractions of 0.22 for th e phospho-uranylite ore and 0.31 for the meta-autunite ore. The emanat ion of the two ores varies with grain size. Activity relative to Ra-22 6 is highest for -250 + 180 mu m grain size for rhyolite while there i s a general increase in the relative activity of radon as grain size i ncreases for granite. (C) 1997 Elsevier Science Ltd.