A study of proton-induced spallation reactions by the improved quantum molecular dynamics model plus statistical decay models

作者：Ou Li^*; Li Zhuxia; Wu Xizhen; Tian Junlong; Sun Weili

来源：Journal of Physics G: Nuclear and Particle Physics , 2009, 36(12): 125104.

DOI：10.1088/0954-3899/36/12/125104

The recent GSI data for proton-induced spallation reactions by using inverse kinematics are analyzed by the improved quantum molecular dynamics model (ImQMD05) merged with the generalized evaporation model (GEM2) and GEMINI model. We find that the model of ImQMD05+GEM2 reproduces the experimental data of mass and charge distributions for proton-induced spallation reactions on heavy targets ((208)Pb, (238)U and (197)Au) well and the model of ImQMD05+GEMINI reproduces the ones on light targets ((56)Fe) well. The experimental data for double differential cross sections of emitted neutrons and protons in intermediate energy proton-induced spallation reactions can also be reproduced well with the same models and this shows that they are not very sensitive to the merged statistical model.

• 出版日期2009-12
• 单位中国原子能科学研究院; 安阳师范学院; 北京应用物理与计算数学研究所