title: Production of (117m)Sn with high specific activity by cyclotron.
abstract: A method to produce (117m)Sn radionuclide using accelerator production route is described. A new method is proposed to separate the (117m)Sn. Specific activities and thick target yield for (116)Cd(α,3n)(117m)Sn reaction at E(α)=35MeV bombarding energy were determined. The estimated production yield of (117m)Sn was 37.5kBq/μAh for 13.16 mg/cm(2) natural cadmium-oxide target and 410 kBq/μAh for 11.07 mg/cm(2) highly enriched (95%) (116)CdO target. The method developed for separation of (117m)Sn from Cd using anion-exchange resin (Dowex -1×8, fluorine form, 400 mesh) can achieve 98% radiochemical yield of (117m)Sn with more than 99% radionuclidic purity. The estimated specific activity is 2.4 GBq/mg that can be reached with the used irradiation conditions.
authors: Flerov Laboratory of Nuclear Reactions, JINR, Dubna, Russia.
authors: O D
authors: OD
authors: Maslov
authors: G Ya
authors: GY
authors: Starodub
authors: G K
authors: GK
authors: Vostokin
authors: M V
authors: MV
authors: Gustova
authors: S N
authors: SN
authors: Dmitriev
authors: V N
authors: VN
authors: Shvetsov
authors: Z
authors: Z
authors: Szucs
authors: D
authors: D
authors: Jansen
authors: J R
authors: JR
authors: Zeevaart