Study on production of Pd-103 and characterisation of possible contaminants in the proton irradiation of Rh-103 up to 28 Mev

Excitation functions For the proton-induced reactions on Rh-103 of importan ce in the production of the medically used Pd-103 were studied by the stack ed foil technique. Several experiments at incident energies between 14.7 an d 29.4 MeV allowed reliable determination of the cross-sections for Pd-101, Pd-103, Rh-101m.101g and Rh-102m.102g. Measurements for Pd-103 were done i n the X-line region as well as for gamma-lines and show 25% difference. The new experimental values are compared to the available literature values an d show mostly higher values. Thick target yields were calculated that are i n good agreement with earlier published values. Practical upper limit of in cident energy to be used in production runs is derived. (C) 2000 Elsevier S cience B.V. All rights reserved.