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- W137229479 abstract "The work presents results on computer simulations of two experiments whose aim was measuring the threshold activation reaction rates in {sup 12}C, {sup 19}F, {sup 27}Al, {sup 59}Co, {sup 63}Cu, {sup 65}Cu, {sup 64}Zn, {sup 93}Nb, {sup 115}In, {sup 169}Tm, {sup 181}Ta, {sup 197}Au, and {sup 209}Bi thin samples placed inside and outside a 0.8-GeV proton-irradiated 4-cm thick W target and a 92-cm thick W-Na composite target of 15-cm diameter both. In total, more than 1000 values of activation reaction rates were determined in both experiments. The measured data were compared with results by the LAHET code using several nuclear data bases for the respective excitation functions, namely, ENDF/B6 for cross section of neutrons at energies below 20 MeV and MENDL2 together with MENDL2P for cross sections of protons and neutrons of 20 to 100 MeV energies. The recently developed IEAF-2001 data base that provides neutron cross sections up to 150 MeV was used as well. Simulation-to-experiment results obtained using MENDL2 and IEAF-2001 are presented. The agreement between simulation and experiment was found satisfactory for both data bases. Nevertheless; further studies should be conducted to improve simulations of the production of secondary protons and high-energy neutrons, as well as themore » high-energy neutron elastic scattering. Our results allow drawing some conclusions concerning the reliability of the transport codes and data bases used to simulate Accelerator Driven Systems (ADS), particularly with Na-cooled W targets. The high-energy threshold excitation functions to be used in activation-based unfolding of neutron spectra inside the ADS can be also inferred from our results.« less" @default.
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- W137229479 date "2004-01-01" @default.
- W137229479 modified "2023-09-23" @default.
- W137229479 title "Verification of MENDL2 and IEAF-2001 Data bases at intermediate energies" @default.
- W137229479 hasPublicationYear "2004" @default.
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