文章基本信息

标题：Pixel-Structured Scintillator with Polymeric Microstructures for X-Ray Image Sensors
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作者：Jung, Im-Deok ; Cho, Min-Kook ; Bae, Kong-Myeong 等
期刊名称：ETRI Journal
印刷版ISSN：1225-6463
电子版ISSN：2233-7326
出版年度：2008
卷号：30
期号：5
页码：747-749
语种：English
出版社：Electronics and Telecommunications Research Institute
摘要：We introduce a pixel-structured scintillator realized on a flexible polymeric substrate and demonstrate its feasibility as an X-ray converter when it is coupled to photosensitive elements. The sample was prepared by filling scintillation material into a square-pore-shape cavity array fabricated with polyethylene. For comparison, a sample with the conventional continuous geometry was also prepared. Although the pixelated geometry showed X-ray sensitivity of about 58% compared with the conventional geometry, the resolving power was improved by about 70% above a spatial frequency of 3 . The spatial frequency at 10% of the modulation-transfer function was about 6 .
关键词：X-ray image sensor;scintillator;flexible substrate;MEMS;modulation-transfer function (MTF)