快中子在Zr对Nb核上的小角弹性散射角分布测量  

Measurement of small-angle elastic scattering of fast neutrons from Zr and Nb nuclei

作　　者：万代蓉[1] 戴运生[1] 梁学才[1] 曹建华[1] 

机构地区：[1]四川大学原子核科学技术研究所,成都610064

出　　处：《核技术》1993年第6期331-334,共4页Nuclear Techniques

摘　　要：用快中子位置灵敏谱仪和伴随粒子飞行时间方法,在3°—15°角区测量了14.7MeV中子在Zr和Nb上的弹性散射截面。用蒙特卡罗方法进行了注量率衰减、多次散射和有限角分辨修正。并将实验结果与理论计算作了比较。The differential elastic scattering cross sections of 14.7MeV neutrons from Zr and Nb have been measured by the position-sensitive spectrometer and associated particle time- of- flight method at 7 angles ranging from 3° to 15° . The corrections for neutron fluence attenuation, multiple scattering and finite angle geometry are performed by using Monte- Carlo code. The experimental results are compared with the theoretical results based on the optical model.

关 键 词：快中子 小角散射 角分布 锆 铌 

分 类 号：O571.5[理学—粒子物理与原子核物理]