Comparative study and TALYS 1.6 code calculations for the excitation functions of P and α-induced reactions on Bi target with special attention to the medical radioisotope ²¹¹At

The induced reactions by light ions such as protons, deuterons, ³He and α-particles on ²⁰⁹Bi, as the heaviest stable isotope in the periodic table, are important for the production of heavy radioactive isotopes. These radioactive isotopes are mainly α-emitters and could be used in cancer therapy. In this study, ²⁰⁹Bi(p,2n)²⁰⁸Po, ²⁰⁹Bi(p,3n)²⁰⁷Po, ²⁰⁹Bi(p,4n)²⁰⁶Po and ²⁰⁹Bi(p,5n)²⁰⁵Po reactions were studied by collecting the previously measured excitation functions, holding an inter-comparison and performing code calculations using the TALYS 1.6 code. As a result of the inter-comparison, mathematical fit for each reaction was given. α-induced reactions on ²⁰⁹Bi target leading to the formation of ^210,211At and ²¹⁰Po radioisotope were also studied through this work. The production of ²¹¹At without considerable isotopic ²¹⁰At impurities was discussed. The previously measured excitation functions were fitted as before, and TALYS 1.6 code calculation was performed. The code calculations were compared with the mathematical fitted excitation functions.