Cross sections and production yields of Sn-117m and other radionuclides generated in natural and enriched antimony with protons up to 145 MeV

摘要

Cross sections of a prospective medical radionuclide Sn-117m along with Sn-113, Sb-120m,Sb-122, In-111,In-114m and Te-118,Te-119m,Te-119g,Te-121m,Te-121g,Te-123m generated in natural and enriched antimony targets by protons in a wide energy range up to 145 MeV were determined. A stacked-foil technique followed by gas chemical separation and gamma-ray spectrometry were used. The obtained data were compared with experimental values reported in literature and with theoretical computations by ALICE, TALYS and Cascade-Evaporation-Fission codes. Production yields of( 117m)Sn and the main impurity modes Sn-113Sn were estimated for different irradiation modes.