Application of dose distribution models to the functional assessment of radiation protection measures in a group-considering workers' satisfaction with radiation protection.

To determine the quality of radiation protection in a group, it is useful to analyse histograms of doses within the group. In this case, the distribution of individual doses is fundamental to the analysis of the group. We have shown that the hybrid lognormal (HLN) distribution is useful for this analysis. On the other hand, individual worker satisfaction with radiation protection is also an important evaluation factor, and this factor is thought to shape the HLN distribution. In this study, in addition to fitting the HLN distribution to actual worker data, we also examined whether satisfaction with radiation protection follows the HLN. The results showed that the distribution of individual satisfaction in the population also follows the HLN distribution with an upper bound. These results indicate that understanding the distribution characteristics in a group is useful for evaluating the function of radiation protection in a group.