Giakoumakis G E, Nomicos C D, Skountzos P, Koutroubas S, Zisos A, Yiakoumakis E N, Katsarioti M C, Kaliakatsos J A, Rovithi M, Panayiotakis G S
Physics Department, University of Ioannina, Greece.
Med Phys. 1993 Jan-Feb;20(1):79-83. doi: 10.1118/1.597065.
The x-ray luminescence of Y2O2S:Eu phosphor screens is studied both in transmission and in reflection mode observation. Detailed experimental data concerning the dependence of the absolute efficiency on the tube voltage and the screen's thickness are presented and comparisons to another rare earth phosphor material (Y2O2S:Tb) are given. With the help of theoretical calculations based on the Hamaker-Ludwig model all the experimental data are explained and the intrinsic efficiency and scattering coefficients of the phosphor are estimated.
对Y2O2S:Eu磷光屏的X射线发光进行了透射和反射模式观察研究。给出了关于绝对效率与管电压及屏厚度依赖性的详细实验数据，并与另一种稀土磷光材料（Y2O2S:Tb）进行了比较。借助基于哈马克-路德维希模型的理论计算，对所有实验数据进行了解释，并估算了磷光体的本征效率和散射系数。
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