外部被曝における臓器線量評価について

抄録

Nowadays, many types of personnel dosimeters are being used to monitor personnel doses. However it is generally difficult to determine organ doses by personnel dosimeters attached on surface of the body. Personnel monitoring should be controlled on each organ separately, because both external and internal doses should be considered for protection of radiation workers. According to the principle of personnel monitoring, it is neccessary to find a correlation between organ doses and indication of personnel dosimeters.
In this study, LiF thermoluminescence dosimeters are used to measure organ doses in a human phantom (Alderson Co.), and LiF-TLD and pocket dosimeters (chamber type) are used as personnel dosimeters. The human body effect on correlation between organ and surface doses is also studied by some experiments. In order to acquire an angular response of any organ dose, three organs were chosen; testicles on surface of the body, ovary in the thick part of the trunk and liver in the comparatively thin part of the trunk.