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闪光X射线高速摄影荧光转换屏的设计和性质研究
引用本文:王富芝 龚美霞. 闪光X射线高速摄影荧光转换屏的设计和性质研究[J]. 光子学报, 1995, 24(3): 268-272
作者姓名:王富芝 龚美霞
作者单位:武汉大学环境科学系,武汉市医药公司,中国科学院西安光学精密机械研究所瞬态光学技术国家重点实验室
摘    要:本文描述了用于中间弹道高速摄影荧光转换屏的设计特点、性能测试和实验结果。文中讨论了Gd2O2S:Tb和(Zn,Cd)S对X射线的吸收系数、发光效率以及荧光光谱与变象管S-20阴极光谱灵敏度曲线相匹配的相关曲线;测试了转换屏的相对发光强度、分辨率及其余辉。实验证明本屏发光亮度比钨酸钙屏高60倍左右,屏分辩率达51p/mm,余辉时间为8μs,多幅摄影结果证明第一幅的图象对第二幅照片无“拖尾”现象,本屏已达到了中间弹道高速摄影转换屏的实用水平。

关 键 词:荧光转换屏  闪光X射线高速摄影
收稿时间:1993-10-07

A DESIGN AND THE PROPERTIES OF A PHOSPHOR TRANSFORM SCREEN FOR FLASH X-RAY HIGH SPEED PHOTOGRAPHY
Wang fuzi,He Xiqing,Cao Guihua,Yang Hansheng,Gong Meixia,Wang Zhiping,Zhang Ruduan,Liu Fuxia. A DESIGN AND THE PROPERTIES OF A PHOSPHOR TRANSFORM SCREEN FOR FLASH X-RAY HIGH SPEED PHOTOGRAPHY[J]. Acta Photonica Sinica, 1995, 24(3): 268-272
Authors:Wang fuzi  He Xiqing  Cao Guihua  Yang Hansheng  Gong Meixia  Wang Zhiping  Zhang Ruduan  Liu Fuxia
Affiliation:1. Wuhan Universith, Wuha 430072;2. Wuhan Medicine company Wuhan 450014;3. Xi’an Institute of optics and Precision Mechanics, Academia Sinica Xi’an 710068
Abstract:A design and a study of theproperties ofaphosphor transfOrm screen are reported,it isused for the high speed photography of middle ballistics,The absorption coefficient of X-ray,theluminous efficiency and the correlation of the fluorescence spectrum with the sensitivity of S 20 arestudied.And the relative luminosity,the spatial resolution and the afterglow are measured.It’sexperimentally shown that the luminosity of this screen is about 60 times higher than that of CaWO4screen. The spatial resolutin is 51p/mm and the afterglow is 8μs. From the multiframing photograph,itcan be seen that there isn’t tailing phenomena of the first image in the second image,this transformscreen is practical in the high speed photography of middle ballistics.
Keywords:Phosphor transform screen  Flash X-ray high speed photography  
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