Mathematical calculation of skin and soft- tissues radiation absorbed dose from Na22 ,Ba133 and Cd109 radiation source for persons working in nuclear research room.

Abstract

Assessment of radiation absorbed dose in radiation contaminated area are of greater value in radiation protection field. In this project three radioactive source involved Na22 , Ba133 and Cd109 whose main emission are gamma ray. Calculation were done to compute the radiation absorbed dose by skin and soft-tissues using mathematical equation .The main parameters of this project are the distance from the radioactive source , activity and type of radiation sources. The results showed that the amount radiation absorbed dose at time considered didn’t produce significant effect since it not reach 2 Gy where the highest values of skin dose was (0.001137187, 0.000285321and 0.000175802 mGy) for Na22, Ba133 and Cd109 respectively and for soft-tissues was(0.001144353,0.00028630 and 0.000187827 mGy ) for Na22,Ba133 and Cd109 respectively