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Neutron production for 250 MeV protons bombarding on thick grain-made tungsten target

文献类型：期刊论文

作者Ma, Fei2; Zhang, Xueying2; Zhang, Yanbin2; Ju, Yongqin2; Chen, Liang2; Zhang, Hongbin1,2; Li, Yanyan1,2; Wan, Bo1,2; Wang, Jianguo2; Ge, Honglin2
刊名EUROPEAN PHYSICAL JOURNAL A
出版日期2015-08-26
卷号51页码:7
ISSN号1434-6001
DOI10.1140/epja/i2015-15106-0
英文摘要Neutron yield for 250MeV protons incident on a tungsten target has been measured using the water bath method. The target was made of many randomly placed tungsten grains. Through analyzing the activity of Au foils, the neutron flux distribution in water was obtained. The neutrons slowing down process shows that the neutrons from tungsten have an average energy lower than neutrons from the lead target. The neutron yield was experimentally determined to be 2.02 +/- 0.15 neutron/proton. Detailed simulation was also performed with the Geant4 toolkit. Comparison has been made with the experimentally derived neutron yield. It was found that, around 250MeV, experimental results were described satisfactorily with a combination of high-energy spallation, low-energy neutron reaction and scattering. It was shown that the grain-packed target does not affect much the main neutronic properties, which are of crucial importance for the design of the spallation target.
WOS关键词YIELDS ; PB
资助项目National Natural Science Foundation ; Chinese Academy of Sciences[11305229] ; Chinese Academy of Sciences[11105186] ; Chinese Academy of Sciences[91226107] ; Chinese Academy of Sciences[91026009] ; Chinese Academy of Sciences[XDA03030300]
WOS研究方向Physics
语种英语
WOS记录号WOS:000365685700001
出版者SPRINGER
资助机构National Natural Science Foundation ; Chinese Academy of Sciences
源URL[http://119.78.100.186/handle/113462/41041]  
专题近代物理研究所_实验物理中心
近代物理研究所_散裂靶室（ADS）
通讯作者Zhang, Yanbin
作者单位1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
2.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China
推荐引用方式
GB/T 7714		 Ma, Fei,Zhang, Xueying,Zhang, Yanbin,et al. Neutron production for 250 MeV protons bombarding on thick grain-made tungsten target[J]. EUROPEAN PHYSICAL JOURNAL A,2015,51:7.
APA Ma, Fei.,Zhang, Xueying.,Zhang, Yanbin.,Ju, Yongqin.,Chen, Liang.,...&Ge, Honglin.(2015).Neutron production for 250 MeV protons bombarding on thick grain-made tungsten target.EUROPEAN PHYSICAL JOURNAL A,51,7.
MLA Ma, Fei,et al."Neutron production for 250 MeV protons bombarding on thick grain-made tungsten target".EUROPEAN PHYSICAL JOURNAL A 51(2015):7.

入库方式： OAI收割

来源：近代物理研究所

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