Abstract
Excitation functions for201Pb,202mPb,203Pb and204mPb radionuclides which are formedviaproton induced reactions with natural thallium target have been measured from their respective threshold (Ethr) to 27.5 MeV using activation technique. Natural copper foils were used to monitor the cyclotron beam. The integral yields (MBq/μA h) of the produced radionuclides were calculated from the measured excitation functions. The optimum proton energy range for the production of203Pb with low amount of impurities is (16–10 MeV) after 5 h of EOB. The experimental cross-sections fornatTl(p,xn) reactions were compared with the cross-sections recommended by the IAEA and with earlier published data when it was possible.
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