Abstract
Building a map of the distribution of radiation activities is needed to assist in decontamination work. The authors have proposed a method to estimate the intensities of point-like radiation sources from the radiation dose measured by moving a dosimeter in three-dimensions and 3-D map of the environment, and it was found that the accuracy of estimated distribution of radiation sources depended on the trajectory of dosimeter. To improve the problem we propose a method to plan a best trajectory of measurement of dosimeter in estimation of radiation sources. In this paper, the difference of likelihood distribution caused by trajectory of dosimeter is shown to evaluate the trajectory.
