Origins of the Neutrons Emission in the Reaction of 33.4MeV/u 17N on 9Be |
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Authors: | HUA Hui JIANG DongXing LI XiangQing QIAN Tao WU HeYu JIN GenMing ZHAN WenLong DUAN LiMin GUO ZhongYan XIAO ZhiGang LI ZuYu WANG ShuFang ZHANG BaoGuo |
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Institution: | Departmant of Technical Physics,Peking University,Beijing 100871,China2 Institute of Modern Physics,The Chinese Academy of Sciences,Lanzhou 730000,China |
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Abstract: | In the reaction of 33.4MeV/u 17N on a target 9Be,the measured neutron spectra at different angles exhibit a complex pattern and vary regularly as a function of the detected angle. The detected neutrons probably come from the three origins:nucleon-nucleon collisions between the projectile and target,break-up of 17N and statistical evaporations from the hot nuclei. By analyzing the measured neutron angular distribution and calculating with QMD and GEMINI for the reaction concerned, 4.49,0.44 and 5.5barns were obtained for neutron emission cross sections due to the three origins mentioned above,respectively. |
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