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在不同角度测得的 33 4MeV/u17N +9Be反应中 ,发射中子的能谱具有复杂的形式 ,而且随着角度的增大显示出有规律的变化 发射中子至少来源于靶弹核间的核子 -核子碰撞、17N的破裂反应以及熔合热核的统计蒸发三种不同起源 分析结果表明 :反应体系三种起源的发射中子截面分别为 4 4 9,0 4 4和 5 5b
In the 33 4 MeV / u17N + 9Be reaction measured at different angles, the energy spectrum of the neutron emission is complex and shows a regular change as the angle increases. The emitted neutrons originate at least from the target nuclei The analysis of three different origins of the nuclear-nuclear collision, the 17N rupture and the statistical evaporation of the thermonuclear nuclei shows that the emission neutron cross sections of the three origins of the reaction system are 449,044 and 5 5b, respectively