Ultra low-level gamma ray spectrometry of thorium in human bone samples

Canet, M, Hult, M, Johnston, P and Lambrichts, I 2001, 'Ultra low-level gamma ray spectrometry of thorium in human bone samples', Radiation Protection Dosimetry, vol. 97, no. 2, pp. 169-172.


Document type: Journal Article
Collection: Journal Articles

Title Ultra low-level gamma ray spectrometry of thorium in human bone samples
Author(s) Canet, M
Hult, M
Johnston, P
Lambrichts, I
Year 2001
Journal name Radiation Protection Dosimetry
Volume number 97
Issue number 2
Start page 169
End page 172
Total pages 3
Publisher Nuclear Technology Publishing
Abstract Following the use of in vivo measurements of 210Pb to estimate retrospectively radon exposure, interest has been expressed in the use of in vivo measurements of 208Tl to estimate thorium intake. To aid with calibration and to determine the optimum part of the body on which in vivo measurements should be made, the distribution of 208Tl and 228Ac amongst different human bones was measured in the underground laboratory HADES. The 208Tl activity was determined by the 2614.5 keV and the 583.2 keV gamma ray lines. The 228Ac activity was determined by the 911.2 keV and the 969.0 keV gamma ray lines. The background under those peaks when measured on the 106% relative efficiency coaxial HPGe detector in HADES is of the order of 1 d-1, resulting in detection limits in the order of 1 mBq for both radionuclides for a typical 10 g bone sample and for a measuring time of 1 week.
Copyright notice © 2001 Oxford University Press.
ISSN 0144-8420
Versions
Version Filter Type
Access Statistics: 158 Abstract Views  -  Detailed Statistics
Created: Wed, 09 Dec 2009, 09:40:11 EST by Catalyst Administrator
© 2014 RMIT Research Repository • Powered by Fez SoftwareContact us