快中子照相胶片成像法的初步实验  

Preliminary Experiment of Fast Neutron Imagingwith Direct-film Method

作　　者：裴宇阳[1] 唐国有[1] 郭之虞[1] 张国辉[1] 

机构地区：[1]北京大学重离子物理教育部重点实验室,北京100871

出　　处：《原子核物理评论》2005年第1期79-80,共2页Nuclear Physics Review

摘　　要：利用9Be(d, n)反应在北京大学 4. 5MV静电加速器上产生小于 7MeV能区的快中子, 采用胶片法进行了快中子照相的初步实验. 对快中子胶片成像法的基本性能进行了初步的测试和研究. 用国产的原材料研制了一种适用于快中子照相的关键部件———快中子转换屏. 实验结果表明研制的快中子转换屏能够满足快中子照相的需要.A preliminary experiment is conducted with direct-film method under the condition that fast neutron is generated by the reaction of ~9Be(d, n) on the Peking University 4.5 MV Van de Graff, whose energy is lower than 7 MeV. Basic characteristics of direct-film neutron radiography system is investigated with the help of samples in different materials, different thickness and holes of different diameter. The fast neutron converter, which is vital for fast neutron imaging, is produced with the materials made in china. The result indicates that fast neutron converter can meet the requirment of fast neutron imaging; further research of fast neutron imaging can be conducted on the accelerator and neutron-generator in China.

关 键 词：快中子 MV 实验结果 成像法 国产 反应 胶片 静电加速器 转换屏 

分 类 号：O773[理学—晶体学] TL816[核科学技术—核技术及应用]