title: Cross section measurements of proton and deuteron induced reactions on natural europium and yields of SPECT-relevant radioisotopes of gadolinium.
abstract: The existing cross section data of the (nat)Eu(d,x) and (nat)Eu(p,x) reactions relevant for the production of (147,149)Gd were expanded up to 70.9 MeV and 44.8 MeV, respectively. Integral yields of radiogadolinium were calculated, showing production rates higher than for the earlier proposed irradiation of highly enriched (144)Sm with α- or (3)He-particles. The formation of radioisotopic impurities like (151)Gd (T(1/2)=124 d) and (153)Gd (T(1/2)=240 d) was below 5%. Production of (147,)(149)Gd using enriched europium is also discussed.
authors.affiliation: Institut für Neurowissenschaften und Medizin, INM-5: Nuklearchemie, Forschungszentrum Jülich GmbH, D-52425 Jülich, Germany.
authors.forename: Martin
authors.initials: M
authors.lastname: Buchholz
authors.affiliation: Institut für Neurowissenschaften und Medizin, INM-5: Nuklearchemie, Forschungszentrum Jülich GmbH, D-52425 Jülich, Germany. Electronic address: i.spahn@fz-juelich.de.
authors.forename: Ingo
authors.initials: I
authors.lastname: Spahn
authors.affiliation: Institut für Neurowissenschaften und Medizin, INM-5: Nuklearchemie, Forschungszentrum Jülich GmbH, D-52425 Jülich, Germany.
authors.forename: Heinz H
authors.initials: HH
authors.lastname: Coenen
keywords: Cross section measurement; Integral yield; Nuclear reaction; Radiogadolinium; Thick target yield