Hot Isostatic Pressed Gd2O2S:Pr, Ce, F Translucent Scintillator Ceramics for X-Ray Computed Tomography Detectors
Hot Isostatic Pressed Gd2O2S:Pr, Ce, F Translucent Scintillator Ceramics for X-Ray Computed Tomography Detectors
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DOI：
10.1143/jjap.27.l1371
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发表时间：
1988-08
影响因子：
1.5
通讯作者：
Yukio Ito;H. Yamada;M. Yoshida;Hideji Fujii;G. Toda;H. Takeuchi;Y. Tsukuda
中科院分区：
文献类型：
--
作者：
Yukio Ito;H. Yamada;M. Yoshida;Hideji Fujii;G. Toda;H. Takeuchi;Y. Tsukuda
采用热等静压（HIP）工艺制备了Gd2O2S：Pr，Ce，F半透明闪烁体陶瓷。光学透射率约为入射光的60%，X射线阻止能力也相当高。由于HIP致密化工艺增强了这些性能，当用120 kV X射线激发时，1 mm厚的样品与硅光电二极管结合的最高光输出达到了CdWO4单晶的1.8倍。本陶瓷是非常有前途的候选人闪烁体材料在X射线计算机断层扫描（CT）探测器的应用。
Translucent scintillator ceramics of Gd2O2S:Pr, Ce, F were fabricated using a hot isostatic pressing (HIP) technique. The optical transmission is about 60% of the incident light and the X-ray stopping power is also quite high. Owing to the enhancement of these properties by the HIP densification process, the highest light output from a 1 mm thick specimen combined with a silicon photodiode, when excited by 120 kV X-rays, has reached 1.8 times that of CdWO4 single crystals. The present ceramics are very promising candidates for scintillator materials in X-ray computed tomography (CT) detector applications.