title: Target development for diversified irradiations at a medical cyclotron.
abstract: The irradiation facility at an old medical cyclotron (Ep=17 MeV; Ed=10 MeV) was upgraded by extending the beam line and incorporation of solid state targetry. Tests performed to check the quality of the available beam are outlined. Results on nuclear data measurements and improvement of radiochemical separations are described. Using solid targets, with the proton beam falling at a slanting angle of 20°, a few radionuclides, e.g. (75)Se, (120)I, (124)I, etc. were produced with medium currents (up to 20 µA) in no-carrier-added form in quantities sufficient for local use. The extended irradiation facility has considerably enhanced the utility of the medical cyclotron.
authors.affiliation: Institut für Neurowissenschaften und Medizin, INM-5: Nuklearchemie, Forschungszentrum Jülich, D-52425 Jülich, Germany.
authors.forename: S
authors.initials: S
authors.lastname: Spellerberg
authors.affiliation: Institut für Neurowissenschaften und Medizin, INM-5: Nuklearchemie, Forschungszentrum Jülich, D-52425 Jülich, Germany. Electronic address: b.scholten@fz-juelich.de.
authors.forename: B
authors.initials: B
authors.lastname: Scholten
authors.affiliation: Institut für Neurowissenschaften und Medizin, INM-5: Nuklearchemie, Forschungszentrum Jülich, D-52425 Jülich, Germany.
authors.forename: I
authors.initials: I
authors.lastname: Spahn
authors.affiliation: Institut für Neurowissenschaften und Medizin, INM-5: Nuklearchemie, Forschungszentrum Jülich, D-52425 Jülich, Germany.
authors.forename: W
authors.initials: W
authors.lastname: Bolten
authors.affiliation: Institut für Neurowissenschaften und Medizin, INM-5: Nuklearchemie, Forschungszentrum Jülich, D-52425 Jülich, Germany.
authors.forename: M
authors.initials: M
authors.lastname: Holzgreve
authors.affiliation: Institut für Neurowissenschaften und Medizin, INM-5: Nuklearchemie, Forschungszentrum Jülich, D-52425 Jülich, Germany.
authors.forename: H H
authors.initials: HH
authors.lastname: Coenen
authors.affiliation: Institut für Neurowissenschaften und Medizin, INM-5: Nuklearchemie, Forschungszentrum Jülich, D-52425 Jülich, Germany.
authors.forename: S M
authors.initials: SM
authors.lastname: Qaim
mesh_terms: D017357:Cyclotrons / Q000295:instrumentation*; D004867:Equipment Design; D019544:Equipment Failure Analysis; D007553:Isotope Labeling / Q000295:instrumentation* / Q000379:methods; D011829:Radiation Dosage; D019275:Radiopharmaceuticals / Q000138:chemical synthesis*
chemical_list: D019275:Radiopharmaceuticals
keywords: Activation of materials; Extended beam line; Medical cyclotron; Nuclear data measurement; Production of radionuclides; Solid state targetry