Disequilibrium in naturally occurring radioactive series in some phosphate ores

Eight phosphate ore samples from Egypt and Saudi Arabia were studied by atomic absorption spectrometry for the Bi, Pb, Th and Al concentrations in ppm or ppb or per cent. Also X-ray diffraction spectrometry was applied for determining the mineral and chemical composition of the phosphate ore samples...

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Bibliographic Details
Published in:Applied radiation and isotopes 2012, Vol.70 (1), p.346-349
Main Authors: Hamidalddin, Safia H.Q., Fakeha, Afaf A., Yeslam, Mai S., Ibraheim, Nagdya M.
Format: Article
Language:English
Subjects:
Atomic absorption
Background Radiation
Egypt
HPGe
Phosphates - analysis
Phosphates - chemistry
Radiation Dosage
Radioisotopes - analysis
Radiometry - methods
Saudi Arabia
Soil Pollutants, Radioactive - analysis
Thorium
Uranium
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Summary:Eight phosphate ore samples from Egypt and Saudi Arabia were studied by atomic absorption spectrometry for the Bi, Pb, Th and Al concentrations in ppm or ppb or per cent. Also X-ray diffraction spectrometry was applied for determining the mineral and chemical composition of the phosphate ore samples. A gamma spectrometry system, based on HPGe crystal, was applied for determining the concentrations of the radioactive elements in 238U, 226Ra and 232Th series as well as 40K, in Bq/kg dry weight. Concentrations in ppm were found to be from
ISSN:0969-8043
1872-9800
DOI:10.1016/j.apradiso.2011.09.004