Calculation of intake fraction in the whole-body, an organ and excreta after inhalation intake

Predicted values in bioassay compartments following unit intake by inhalation are given in ICRP publication 78 from 1 to 10 days after intake. However, it is necessary to have the time course of predicted values over a period of 10 days depending on the situation. Accordingly, system for calculation of predicted values unit intake of activity in bioassay compartments at time t after intake was established, and caculations were carried out in this study. For the validation of the calculations, results from this study were compared with results from other researcher. As a result, it was shown that there were good agreements each other. Therefore, our results can be used for not only assessment of intake, but also design and implementation of internal monitoring program, and data module for internal dose assessment code