Abstract
In this study, 121Sb (α, n) 124I reaction, which is one of the production reactions of the 124I radioisotope, which has an important use in nuclear medicine, was investigated. Experimental value EXFOR was obtained and theoretical data was obtained using TALYS 1.8 and NON-SMOKER half-experimental cross section values were calculated using theoretical data and experimental values. In addition, the Astrophysical S-factor was calculated. The obtained results were compared with EXFOR data.