What type of light are PSP plates sensitive to?

• A. Visible (red) light
• B. Ultraviolet light
• C. Infrared light
• D. Blue light

Answer: (A)

PSP plates store the X-ray image in a storage phosphor, and that stored energy can be released not only when read by the scanner but also by exposure to light in the visible spectrum. That means handling these plates under safe lighting is essential to prevent erasing the image. The practical takeaway is that visible light can affect the plate, with red-safe lighting commonly used in practice to minimize risk. Ultraviolet light is outside the typical handling risk in everyday ambient settings, and infrared light doesn’t provide enough energy to disrupt the stored information in the same way. So, the best answer reflects their sensitivity to visible light.