Abstract
In order to be able to use the whole body counter of our department for routine measurement of body radioactivity in radiation workers we adapted a commercially available computer program to the special requirements of whole body counting. The software is suited for nuclide analysis of radioactive samples based on gamma ray spectra collected with NaI(T1) scintillation detectors. We report about our experience in calibrating the instrument, the reliability of peak identification, efficiency, sensitivity and the accuracy of the results.
The measurements of radiation workers show contaminations with activities less than 10% of the maximum permissible amounts. In our experience automated spectrum analysis of gamma spectra obtained by whole body counting offers a useful and fast method for the determination of internal contaminations with an accuracy sufficient for radiation protection purposes.
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Literature
H. Bergmann and R. Höfer, Aufbau und Kenndaten eines klinischen Ganzkörperzählers nach dem Shadow Shield Prinzip, in Qualitätskriterien in der Nuklearmedizin, F. K. Schattauer, Stuttgart, 1977, p.85.
S. Kawasaki et al., Identification of radioactively contaminated organs in the human body using a whole-body counter, in Assessment of Radioactive Contamination in Man 1984, IAEA Vienna, 1985, p.507.
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Havlik, E., Bergmann, H. & Höfer, R. Automated analysis in whole body counting of radiation workers. Acta Physica Hungarica 59, 11–14 (1986). https://doi.org/10.1007/BF03055175
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DOI: https://doi.org/10.1007/BF03055175