METHOD OF OBTAINING RADIONUCLIDE LUTETIUM-177 Russian patent published in 2016 - IPC G21G1/00 G21G4/08 

FIELD: medicine.

SUBSTANCE: invention relates to production process of radionuclides for nuclear medicine. Method of obtaining radionuclide ¹⁷⁷Lu includes making target containing lutetium natural isotopic composition or enriched in isotope ¹⁷⁶Lu, irradiating target with neutrons, followed by extraction of target radionuclide ¹⁷⁷Lu, obtained as result of reaction ¹⁷⁶Lu(n, γ)¹⁷⁷Lu . At that, target is composite material consisting of lutetium nano particles or compounds thereof, surrounded by buffer in form of solid substance dissolved in water or other solvents, wherein d is characteristic size of nano particles selected according to condition of λ/d>>1, where λ is length of run in substance nano particles of recoil atoms ¹⁷⁷Lu. After target irradiation nano particles and buffer are separated, buffer is supplied for radiochemical processing for isolation of radionuclide ¹⁷⁷Lu, and nano particles are returned to reactor core in composition of new target.

EFFECT: invention provides efficient production of radionuclide ¹⁷⁷Lu with high specific activity.

7 cl, 1 dwg, 1 ex