|
KMID : 1001220030060010024
|
|
Journal of the Korean Society of Digital Medical Imaging Technology
2003 Volume.6 No. 1 p.24 ~ p.30
|
|
|
Development of flat panel digital x-ray detectorusing a-Se
|
|
Park Ji-Koon
Kang Sang-Sik
Cha Byung-Yul
Jang Gi-Won
Choi Jun-Young
Nam Sang-Hee
|
|
|
Abstract
|
|
|
|
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 consists of an amorphous selenium layer and a thin-film transistor(TFT) array. Comparing to other papers1)-4), optimization of amorphous selenium and progress of evaporation were similar. The pixel pitch of fabricated detector was , fill factor was 86%, and the size was 14"8.5". Hand and test bar pattern images were acquired. A high modulation transfer function(MTF) factor was obtained: 58% at 3.0 lp/mm.
|
|
|
KEYWORD
|
|
|
Flat-panel detector, Amorphous selenium, Thin-film transistor array, Digital X-ray detector, Modulation transfer function
|
|
|
FullTexts / Linksout information
|
|
|
|
|
Listed journal information
|
|
|
|