Abstract
The National Institute for Oncology’s old whole body counter was reconstructed with the following main characteristics; detector: 15 cm dia × 10 cm sodium iodine single crystal, standard chair geometry, in a 20 cm thick iron shield. The detector signals are fed to a 1024 channel analyser. Spectra can be stored on magnetic and/or punched tapes. Punched tape data are used for off-line spectrum unfolding when needed.
On line data processing and plotting are planned by using a personal computer.
The99mTc and131I incorporation of 16 persons working at the Isotope Department were monitored for a 6 month period to assess the effects of different working conditions. The doses received by assistants were found to be the highest but in no case exceeded the dose limit.
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References
Directory of Whole Body Radioactivity Monitors, IAEA, Vienna, 1970.
A. Andrási and É. Beleznay: International Intercomparison of Whole Body Counters, Report KFKI-1979-95, 1979.
Limits for Intakes of Radionuclides by Workers, ICRP Publication 30, Part 1 and Supplement, Pergamon Press, Oxford, 1979.
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Makra, S., Andrási, A., Beleznay, É. et al. Characteristics and incorporation monitoring results with a whole body counter. Acta Physica Hungarica 59, 35–38 (1986). https://doi.org/10.1007/BF03055181
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DOI: https://doi.org/10.1007/BF03055181