Formation of medical radioisotopes In-111, (117m) Sn, Sb-124, and Lu-177 in photonuclear reactions

摘要

The possibility of the photonuclear production of radioisotopes In-111, (117m) Sn, Sb-124, and Lu-177 is discussed. Reaction yields were measured by the gamma-activation method. The enriched tin isotopes Sn-112,Sn- 118 and Te and HfO2 of natural isotopic composition were used as targets. The targets were irradiated at the linear electron accelerator of Alikhanian National Science Laboratory (Yerevan) at the energy of 40 MeV. The experimental results obtained in this way reveal that the yield and purity of radioisotopes In-111 and (117) mSn are acceptable for their production via photonuclear reactions. Reactions proceeding on targets from Te and HfO2 of natural isotopic composition and leading to the formation of Sb-124 and Lu-177 have small yields and are hardly appropriate for the photoproduction of these radioisotopes even in the case of enriched targets.