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The production of 1-123 from the proton bombardment of isotopically enriched Xe-124 is reported over the energy range of 15 to 34 MeV via the 134 Xe(p,pn)'"Xe '"land ß + 114 Xe (p, 2n) 1,3 Cs 1J 3 Xe 12 3 1 pathway s. The thick ß + ß + target yields for this target are tabulated and compared to theoretical cross-section calculations of the nuclear reactions leading to the production of Xe-123. The radiochemical purity of the 1-123 is greater than 99.9% and the contamination of 1-125 is below detectable limits (< 0.1 %) at 6.6 hrs after the end of bombardment.

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The absolute cross-sections and the thick target yields for the production of nitrogen-13 from the 13 C(p,n) 13 N and the 12 C(d,n) 13 N nuclear reactions are reported. The 13 C(p,n) 13 N reaction was studied at energies from 1 to 33 MeV and the 12 C(d,n) 13 N reaction was studied at energies from 1 to 23 MeV. All measurements were carried out in gaseous targets to ensure that the nitrogen-13 could be recovered quantitatively.

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