Feasibility study for production of I-131 radioisotope using MNSR research reactor

A feasibility study for 131I production using a Low Power Research Reactor was conducted to predict the yield of 131I by cyclic activation technique. A maximum activity of 5.1 GBq was achieved through simulation using FORTRAN 90, for an irradiation of 6 h. But experimentally only 4 h irradiation could be done, which resulted in an activity of 4.0×10 5 Bq. The discrepancy in the activities was due to the fact that beta decays released during the process could not be considered. ► For a high irradiation time, the neutron flux will give high activity. ► For maximum number of irradiation that can be done a maximum activity could be obtained. ► An idea on how to maximize the activity (recommendation).