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)
