Possibilities Of Isotopes Production Of ¹⁵³Sm, ¹⁷⁵Yb, ¹⁸⁶Re At The Electronic Accelerator

Photonuclear technology for producing osteotropic isotopes ¹⁵³Sm (T1/2 = 1.9 days, Eβ = 0.8 MeV, Eγ = 103.2 keV), ¹⁷⁵Yb (T1/2 = 4.2 days, Eβ = 0.5 MeV, Eγ = 396.3 keV) and ¹⁸⁶Re (T1/2 = 3.8 days, Eβ = 1.1 MeV, Eγ = 137.2 keV) with using nanoparticles (50…80 nm) of oxides of these elements and the Szilard-Chalmers reaction to increase specific activity have been developed at the NSC KIPT electron accelerator. Such medical isotopes are not produced in Ukraine. The overall electron accelerator isotope yield when bremsstrahlung irradiated these samples with a maximum energy of 40 MeV and a current of 250 μA for ¹⁸⁶Re and 13.5 MeV and a current of 500 μA for ¹⁵³Sm and ¹⁷⁵Yb has been shown to have the advantages of higher specific activity, negligible the content of impurities and does not require immobilization of radioactive waste in comparison with a reactor and a cyclotron. (author). (author)