Threshold Reaction Rates and Energy Spectra of Neutrons in the 0.8-1.6 GeV Proton-Irradiated W, Na Targets
Yury E. Titarenko, Vyacheslav F. Batyaev, Evgeny I. Karpikhin, Valery M. Zhivun, Svetlana V. Kvasova, Ruslan D. Mulambetov, Dmitry V. Fischenko, Aleksander B. Koldobsky, Yury V. Trebukhovsky, Vladimir A. Korolev, Gennady N. Smirnov, Andrey M. Voloshenko, Vladimir Yu. Belov, Nikolay I. Kachalin Stepan G. Mashnik, Richard E. Prael, Arnold J. Sierk, Hideshi Yasuda
Abstract
Considering the prospects of using the W-Na target assemblies in ADS facilities, the experiments were made to study the nuclear-physics characteristics of W and Na, and the composite structures thereof in their interactions with 0.8-GeV and 1.6-GeV protons. The neutron and proton-induced reaction rates were measured inside, and on the surface of, a cylinder-shaped heterogeneous W-Na assembly together with the double-differential spectra of secondary neutrons emitted from different-depth W and Na discs. The measurement results were simulated by the LAHET, CEM2k, and KASKAD-S codes in terms of the latest versions of nuclear databases.
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