Yoshinaga H, Maki T, Yoshimura A, Cho T, Uehara S
J UOEH. 1984 Mar 1;6(1):57-65. doi: 10.7888/juoeh.6.57.
Time-of-flight measurement was applied to obtain the energy spectra of the neutron emitted from tissue-equivalent plastic (TEP) exposed by pi- mesons. The separation of electrons and muons in beams was attempted. Neutrons from TEP exposed by pi- mesons at P pi = 500 MeV/c were separated from gamma-rays by the NE 213 liquid scintillator and the pulse-height analyzer. The double differential cross sections for neutron energy are obtained. The cross sections of the neutron energy distributions show a preponderance of low energy neutrons and a high energy tail extending to approximately 100 MeV.
采用飞行时间测量方法来获取由π介子照射的组织等效塑料（TEP）发射的中子能谱。尝试对束流中的电子和μ子进行分离。在Pπ = 500 MeV/c条件下由π介子照射TEP产生的中子，通过NE 213液体闪烁体和脉冲高度分析仪与γ射线分离。得到了中子能量的双微分截面。中子能量分布的截面显示出低能中子占优势，并且有一个延伸至约100 MeV的高能尾巴。
