Flat-panel detector(FPD) is the driving force for realizing the next gene ration of x-ray system. In this study, we developed amorphous selenium(a-Se) based flat-panel digital X-ray detector(DXD) for radiography. The prototype detector con sists of an amorphous selenium layer and a thin-film transistor(TFT) array. Com paring to other papersl)-4), optimiza don of amo rphous selenium and progress of evapo ration were similar. The pixel pitch of fabricated detector was 139신m, fill factor was 86%, and the size was 14*x8.5*. Hand and test bar pattern images were acquired. A high modulation transfer function(MTF) factor was obtained: 58% at 3.0 lp/mm.
목차
Abstract 국문요약 I. 서론 II. 연구재료 및 방법 III. 결과 1. 검출기 제작 2. 영상 평가 IV. 고찰 감사의 글 참고문헌
키워드
Flat-panel detectorAmorph ous seleniumThin-film transistor arrayDigital X-ray detectorModulation transfer function