Production and separation of no-carrier-added Tc-93,Tc-94,Tc-95 from Be-9 activated yttrium target

摘要

Proton rich Tc radionuclides have been produced for the first time through Y-89(Be-9, xn)Tc-93,Tc-94,Tc-95 reactions. In order to optimize the yield of a particular radionuclide of choice, batch yield of Tc-93, Tc-94 and Tc-95 have been measured at different incident energies using stacked-foil technique followed by off-line gamma-spectrometry. No-carrier-added (nca) Tc-93,Tc-94,Tc-95 radionuclides have been separated from bulk yttrium by liquid-liquid extraction (LLX) and solid-liquid extraction (SLX) techniques. Trioctylamine (TOA) diluted in cyclohexane was used as liquid anion exchanger in LLX in presence of HCl. SLX was carried out using cation and anion exchanger resin, DOWEX-50 and DOWEX-1, respectively, in HCl medium.