Author/Authors :
Hilscher، نويسنده , , D. and Herbach، نويسنده , , C.-M. and Jahnke، نويسنده , , U. and Tishchenko، نويسنده , , V. and Enke، نويسنده , , M. and Filges، نويسنده , , D. and Goldenbaum، نويسنده , , F. and Neef، نويسنده , , K. Nunighoff، نويسنده , , K. and Paul، نويسنده , , N. and Schaal، نويسنده , , H. and Sterzenbach، نويسنده , , G. and Letourneau، نويسنده , , A. and Bِhm، نويسنده , , A. and Galin، نويسنده , , J. Shaun Lott، نويسنده , , B. a، نويسنده ,
Abstract :
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.
