Measurement of low-level radioactivity in bone ash
Bone is a critical organ for the accumulation of many radionuclides including (90)Sr and the actinides. The National Institute of Standards and Technology (NIST) has prepared bone ash samples with a view to producing a standard reference material. The Institute for Reference Materials and Measurements (IRMM) participated in the analysis for the certification of the radionuclide concentrations in the bone ash. This article describes the assaying of the actinides, (90)Sr, (210)Pb and (226)Ra activity concentrations. A radiochemical procedure based on extraction chromatography has been developed to separate these radionuclides from the bone ash. The activity concentrations of the actinides, (210)Pb and (226)Ra have been measured using gamma-ray spectrometry and alpha-particle spectrometry and that of (90)Sr using low-level liquid scintillation counting.
Bibliographic Reference: Article: Journal of Environmental Radioactivity (1997)
Record Number: 199711531 / Last updated on: 1997-12-09
Original language: en
Available languages: en