Final answer:
Inadequate collimation in CR imaging can result in an image that is too noisy. This is because it causes scatter radiation that degrades image quality by increasing visual noise, obscuring important diagnostic details.
Step-by-step explanation:
In the context of CR (Computed Radiography) imaging, collimation refers to the process of limiting the size and shape of the x-ray beam to match the size of the sensor plate and the area of interest on the patient. Improper collimation can lead to a phenomenon known as 'scatter radiation,' which can degrade the quality of the image. If collimation is inadequate, meaning the X-ray beam is too broad, it will expose areas outside the region of interest, contributing to increased noise in the image. Noise in radiographic terms is the visual representation of statistical fluctuations in the detection of the x-rays, which manifests as a grainy or mottled appearance.
Therefore, inadequate collimation in CR imaging can result in an image that is too C. noisy. This noise can obscure important details and decrease the diagnostic quality of the image. When considering the types of lenses and effects of focusing, a diverging lens is used to correct myopia or nearsightedness, as it spreads the rays slightly so they focus onto the retina. Myopia itself is caused when images are focused between the lens and the retina. Lenses are also characterized by their field of view, and a lens that provides a wide range of view can make the image appear to be closer than the actual object, whereas a narrow field of view can affect how far the object seems to be.