中子照像闪烁屏材料特性对成像速度的影响  

Influence of Material Characteristics of Neutron Radiography Fluoresent Screen on Image Formation Rate

作　　者：姚安居[1] 鲍戎[1] 刘淑萍 

机构地区：[1]南京理工大学理学院,南京210094

出　　处：《南京理工大学学报》1997年第3期277-280,共4页Journal of Nanjing University of Science and Technology

基　　金：国防科技重点预研基金

摘　　要：闪烁增强屏是中子照像常用的中子－光子转换器件，其品质对成像速度和成像质量有着直接的、非常重要的影响。该文从闪烁屏成像机理出发，总结得出成像速度与屏材料的几个重要参数之间的定量关系，指出屏材料本身对光的吸收是一个重要的、不可忽略的因素，改善了S．J．Cocking等人的有关公式，用辛普生法进行数值计算的结果与实验数据吻合良好。该文结论对x射线、γ射线增强屏的研究也具有参考价值。Fluoresent screen is a widely used neutron-light transforming unit. Its quality strongly influences the image formation rate and image quality. The paper started from the image formation mechanism, summarized the quantitative relation between image formation rate and material characteristics of screen. It is pointed out that the self absorbing of light by screen is an important factor which can,t be ignored. The related formular of S. J. Cocking et al. was improved. The calculating results well consist with experimental data. The present results are of reference value to the study of x-ray and γ-ray intensifying screen.

关 键 词：Γ辐射 闪烁屏 无损检测 中子照像 成像速度 

分 类 号：TL812.1[核科学技术—核技术及应用]