Radioactive dispersion model for Tehran research reactor and radioisotope laboratory stacks

In this paper, the amount of released radionuclide from Tehran´s research reactor and radioisotope laboratory stacks has been studied. The aim of this work is to determine the amount and type of radioactive material and to estimate their risk once they released to the environment. To perform the above two task, a computer modeling using cap-88 code and laboratory analysis of air samples around the site were used. Computer code input data is provided by the SAR and Reactor Annual Reports. Air samples were collected using the filter and sampling pumps and analyzed by gamma spectroscopy counter. Results of computer program showed that risk of cancer death (lifetime risk) is very low. Results of analysis of available radionuclide in the air samples shown very low concentration and confirm the code results.