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Helium production for 0.8–2.5 GeV proton induced spallation reactions, damage induced in metallic window materials

Production cross-sections for neutrons and charged particles as well as excitation energy distributions in spallation reactions were measured recently by the NESSI-collaboration and have been employed to test different intra nuclear cascade models and the subsequent evaporation. The INCL/GEMINI code...

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Bibliographic Details
Published in:Journal of nuclear materials 2001-07, Vol.296 (1), p.83-89
Main Authors: Hilscher, D., Herbach, C.-M., Jahnke, U., Tishchenko, V., Enke, M., Filges, D., Goldenbaum, F., Neef, R.-D., Nünighoff, K., Paul, N., Schaal, H., Sterzenbach, G., Letourneau, A., Böhm, A., Galin, J., Lott, B., Péghaire, A., Pienkowski, L.
Format: Article
Language:English
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Summary:Production cross-sections for neutrons and charged particles as well as excitation energy distributions in spallation reactions were measured recently by the NESSI-collaboration and have been employed to test different intra nuclear cascade models and the subsequent evaporation. The INCL/GEMINI code, which describes best the experimental data has been employed to calculate the damage cross-sections in Fe and Ta as well as the He/dpa ratio as a function of proton energy. For the same amount of neutron production in a typical target of a spallation neutron source the proton beam induced radiation damage in an Fe window is shown to decrease almost linearly with proton energy. For heavier materials such as Ta a similar decrease of the radiation damage is found only for energies above about 3 GeV.
ISSN:0022-3115
1873-4820
DOI:10.1016/S0022-3115(01)00501-3