Residual Nuclide Production by Proton-Induced Reactions on Uranium for Energies between 20 and 70 MeV

Journal Article · Tue May 24 00:00:00 EDT 2005 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.1945300· OSTI ID:20722482

Uosif, M A.M. ^[1]; Michel, R ^[1]; Herpers, U ^[2]; Kubik, P -W ^[3]; Duijvestijn, M; Koning, A ^[4]

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1. Center for Radiation Protection and Radioecology, University Hannover (Germany)
2. Dept. for Nuclear Chemistry, University of Cologne (Germany)
3. Institute for Particle Physics, ETH Hoenggerberg, Zurich (Switzerland)
4. Nuclear Research and Consultancy Group, Petten (Netherlands)

Within the HINDAS project, proton-irradiation experiments were performed at the injector cyclotron of the Paul Scherrer Institute at Villigen/Switzerland in order to investigate the production of residual nuclides from natural uranium. The stacked-foil technique was used to cover proton energies between 20 MeV and 70 MeV. Copper targets were used for monitoring the proton beam using the reaction 65Cu (p,n)65Zn. Residual radionuclides were measured by off-line {gamma}-spectrometry. Excitation functions were obtained for the production of 91Y, 95Zr, 95mNb, 99Mo, 103Ru, 112Pd, 115Cd, 124Sb, 126Sb, 127Sb, 132Te, 131I, 134Cs, 136Cs, 137Cs, 140Ba, 141Ce, 144Ce, 147Nd, and 238Np. The experimental data are compared to the sparse results of earlier measurements and with theoretical excitation functions calculated by the newly developed TALYS code. Good agreement between theory and experiment was obtained for product masses up to 115. For higher-mass fission products and for 238Np, there are still systematic deviations between theory and experiment. These deviations are discussed as deficits of the fission model in the heavy part of the fission product distribution.

• OSTI ID: 20722482
• Journal Information: AIP Conference Proceedings, Vol. 769, Issue 1; Conference: International conference on nuclear data for science and technology, Santa Fe, NM (United States), 26 Sep - 1 Oct 2004; Other Information: DOI: 10.1063/1.1945300; (c) 2005 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANTIMONY 124
ANTIMONY 126
ANTIMONY 127
BARIUM 140
CADMIUM 115
CERIUM 141
CERIUM 144
CESIUM 134
CESIUM 136
CESIUM 137
COPPER 65
EXCITATION FUNCTIONS
FISSION
FISSION PRODUCTS
GAMMA SPECTROSCOPY
IODINE 131
MEV RANGE
MOLYBDENUM 99
NATURAL URANIUM
NEODYMIUM 147
NEPTUNIUM 238
NIOBIUM 95
PALLADIUM 112
PROTON BEAMS
PROTON REACTIONS
PROTON-NUCLEON INTERACTIONS
PROTONS
RUTHENIUM 103
TELLURIUM 132
YTTRIUM 91
ZINC 65
ZIRCONIUM 95