| Popis: |
47Sc is considered as a promising beta-emitter for cancer immunotherapy. For its carrier-free production, the 48Ti(γ,p)47Sc reaction in the field of bremsstrahlung radiation of an electron accelerator can be used. On the basis of developed analytical model and a double-foil activation technique, the main characteristics of the photonuclear isotope production and optimal dimensions of a production target have been established. The measured photonuclear yield of 47Sc and dominant scandium admixtures in thin foils of natural titanium in the electron energy range of 35 to 95 MeV enabled to specify the available data on the cross-section of the48Ti(γ,p)47Sc reaction. Using those results, the gross and specific activity of 47Sc in the cylindrical titanium targets of optimal size were calculated by a simulation technique. The comparison of capacity of the photonuclear method of the 47Sc production with other techniques is carried out. |
