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Report No.

Nuclide production cross sections of Mn and Co by GeV protons

Takeshita, Hayato; Meigo, Shinichiro   ; Matsuda, Hiroki  ; Iwamoto, Hiroki   ; Nakano, Keita   ; Watanabe, Yukinobu*; Maekawa, Fujio  

Prediction of nuclide production of spallation products by high-energy proton injection plays a fundamental and important role in shielding design of high-intensity proton accelerator facilities such as accelerator driven nuclear transmutation system (ADS). Since the prediction accuracy of the nuclear reaction models used in the production quantity prediction simulation is insufficient, it is necessary to improve the nuclear reaction models. We have measured nuclide production cross sections for various target materials with the aim of acquiring experimental data and improving nuclear reaction models. In this study, 1.3-, 2.2- and 3.0-GeV proton beams were irradiated to two medium-heavy targets, i.e., Mn and Co, and nuclide production cross-section data were acquired by the activation method. The measured data were compared with several nuclear reaction models used in Monte Carlo particle transport calculation codes (INCL-4.6/GEM, Bertini/GEM, JAM/GEM, INCL++/ABLA07) and the high energy nuclear data library JENDL/HE-2007 to grasp the current prediction accuracy and to study how the nuclear reaction model could be improved.



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