Isobaric yields and radiochemistry of near-target residues in the interaction of 12C and 16O with 103Rh at an incident energy of 400 MeV |
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| Authors: | E Z Buthelezi K Aardaneh G F Steyn E Gadioli T N Van der Walt F Albertini F Cerutti S H Connell A A Cowley F M Nortier |
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| Institution: | (1) iThemba Laboratory for Accelerator-Based Sciences, P.O. Box 722, Somerset West, 7129, South Africa;(2) Nuclear Research Centre for Agriculture and Medicine, Karaj, Iran;(3) Sezione di Milano, University of Milano and INFN, Milano, Italy;(4) University of the Witwatersrand, Johannesburg, South Africa;(5) Department of Physics, University of Stellenbosch, Private Bag X1, Matieland, 7602, South Africa;(6) Isotopes and Nuclear Chemistry Group, LANL, Los Alamos, USA |
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| Abstract: | Production cross sections of residues with mass near to that of the target were measured in 12C and 16O induced reactions on Rh at an incident energy of 400 MeV. An ion-exchange method has been developed for the separation of Rh, Pd and Ag nuclides from all other produced activities. Rh and Ag nuclides were separated from elements such as Pd, Ru, and Tc, amongst others, on an AG1-X8 anion exchange resin in 6M HCl. The Ag nuclides were then removed from the effluent using a precipitation technique so that only Rh remained in the final solution. The Pd was afterwards separated from Ru and Tc by eluting it from the resin with 5% ammonia solution. This procedure made it possible to accurately measure production cross sections for 103mRh and 103Pd. Cross sections for the production of various other observed residues are also presented. The results are consistent with an enhanced isobaric yield in the near-target mass region. The radiochemical separation technique is also suitable for the routine production of Pd and Rh nuclides, e.g., 103Pd and 101mRh, in proton-induced reactions on Rh targets |
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