Estimation and verification of 131I yield from fission and irradiation of tellurium

131I is an important radioisotope due to its wide applications especially in the field of medicine. It can be produced either from fission or by irradiating 130Te by neutrons. This study focuses on estimating analytically the yield of 131I produced from both the routes. We have tested our model by comparing its results with those from other studies and found it satisfactory. We have also used our model to estimate 131I activity produced in Dhruva at different tray rod locations.