P‐126: Direct X‐Ray Detecting Gap‐Type Thin‐Film Transistors for Ultra‐High Spatial Resolution Flat‐Panel Image Receptors

In this paper, we propose to use Gap‐type TFT to implement the direct X‐ray detection for ultra‐high spatial resolution receptors, which are even suitable for the flexible CT applications. The device test‐key is fabricated and measured to show that the X‐ray photocurrent of Gap‐type TFT is approximate 10 nA large. The preliminary pixel estimation of the direct‐readout and passive pixel sensor are presented. This work proves that Gap‐type TFT is an extraordinary candidate for the ultra‐high spatial resolution direct X‐ray detecting system.