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.
出处
《南京理工大学学报》
EI
CAS
CSCD
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
关键词
Γ辐射
闪烁屏
无损检测
中子照像
成像速度
neutrons, neutron radiography,image formation, rates, x radiation, gamma radiation
fluoresent screen
