FIELD: chemistry.;SUBSTANCE: invention relates to a method for producing activated particles containing 188Re isotopes and/or 186Re isotopes by neutron irradiation of non-volatile and water-insoluble starting particles containing a rhenium compound. In addition, the invention relates to obtaining corresponding non-volatile and water-insoluble starting particles and activated particles, as well as a composition containing multiple activated particles. In addition, the invention relates to obtaining corresponding non-volatile and water-insoluble starting particles and activated particles, as well as a composition containing multiple activated particles. Further, the precipitation of the said rhenium sulfide and the separation of particles containing precipitated rhenium sulfide is provided for. ;EFFECT: activated particles and the composition containing them are suitable for use in radionuclide therapy and for cosmetic applications. ;21 cl, 2 dwg
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