Calculation and study of internal radiation doses resulting from the ingestion of some radioactive sources

摘要

In this study, internal radiation doses resulting from the ingestion of some radioactive sources (~(99m)Tc, ~(131)I and ~(213)Bi) with different activities (200MBq- 800MBq) were calculated. The effect of source activity, type of tissue and age on measured dose values was studied. The results showed that radiation dose increases with increased activity and decreases with increased the age. Also, the results showed that radiation dose values were affected by the type of tissue. The amount of energy deposited in each tissue was also studied. The results showed that this energy was influenced by the type of tissue and age.