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

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