A Gas Target for 82Sr Production Using the 80Kr(4He, 2n)82Sr Reaction at the U-150 Cyclotron of the Kurchatov Institute NRC

Abstract

The concept of a cascade gas target with krypton isotopes for medical ⁸²Sr radioisotope production is described. Using this concept, an experimental setup was created at the U-150 cyclotron of the Kurchatov Institute NRC for ⁸²Sr production with an ⁸²Sr yield of approximately 53 μCi/μA h using the ⁸⁰Kr(⁴He, 2n)⁸²Sr reaction in the ⁸⁰Kr target module. Descriptions of the system and its operation are presented. The setup performed well with reproducible results. It is noted that the ⁸²Sr radioisotope produced using the setup is free from an admixture of the ⁸⁵Sr radioisotope that is responsible for approximately one-half the irradiation dose to workers using standard ⁸²Sr–⁸²Rb isotope generators.