外部被曝による単位照射線量あたりの臓器吸収線量の比較検討

抄録

The dose absorbed in an organ due to external radiation depends on the photon energy and incident direction to the body. The results of organ absorbed dose measured by C. ZEOW et al. were revised into the absorbed dose in the organ per unit exposure (rad/R); these values are tabulated for each organ, photon energy and incident direction to the body.
The gonadal doses are compared with those reported by other workers in energy dependence at a typical incident direction, and problems in conversion factor (rad/R) to the organ dose are described.
The results for the testes agree with those by other workers for anterior and horizontal rotational irradiations. There is disagreement, however, for posterior and left-side irradiations. This may be due to the differences in shape of the phantom and position of the organ. On the other hand, the ovary dose for all the incident directions is in good agreement with that by other workers.