Abstract
Measurements have been made on a reference group of employees of the Nuclear Research Center Karlsruhe in the whole-body counter of the Health Physics Division in order to investigate 137Cs body burden data of other laboratories in the USA, the UK and Japan. On the basis of the Karlsruhe data a semi-empirical model for the transfer of fallout 137Cs to man has been developed. According to this model 0.38% of the fallout 137Cs is transferred to the food chain and to the population of the considered region. Maximal 137Cs body burdens occur about three months after the respective 137Cs deposition by rain. The fallout 137Cs of 1980 resulted in an internal dose commitment of 0.08 mrem (0.8 µSv).
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