Which statement correctly describes the acquisition timing for CCD/CMOS sensors versus PSP?

• A. CCD/CMOS provide immediate acquisition and display
• B. PSP provides immediate acquisition and display
• C. CCD/CMOS require scanning and ambient light/dark room
• D. PSP has higher initial and repair costs

Answer: (A)

Direct digital detectors like CCD or CMOS convert X-ray energy to a digital signal at the moment of exposure, so the image is ready for display on the monitor almost immediately. In PSP/CR systems, the latent image is stored on the phosphor plate and must be scanned with a laser in a CR reader to release the stored energy and create a usable digital image, introducing a delay between exposure and display. This readout step, plus the need to erase the plate before reuse in a controlled lighting setup, is what lengthens acquisition time. So the best description is that CCD/CMOS provide immediate acquisition and display.