3. 下列影像接收器( image receptor )中,何者必須藉由光電倍增管(photomultiplier tube )將
影像讀取出來?
A. CCD (charge-coupled device )
B. amorphous silicon +TFT (thin-film transistor )
C. amorphous selenium +TFT (thin-film transistor )
D. PSP (photostimulable phosphor )
4. 數位透視攝影( digital fluoroscopy )系統的設計,採用下列何種方式其影像的空間解析度
(spatial resolution )與對比解析度(contrast resolution )較為均勻?
A. CsI +a-Si +TFT
B. image-intensifier tube +TV camera
C. image-intensifier tube +fiber optic +CCD
D. image-intensifier tube +lens system +CCD