Question

Using a small focal spot size is recommended for magnification

A. to compensate for the loss of image detail
B. because of increase patient dose
C. to compensate for the small OID
D. to compensate for motion unsharpness

Answer 1

Using a small focal spot is crucial for maintaining image detail when magnifying an object under a microscope, ensuring a sharper and clearer magnified image.

Step-by-step explanation:

Using a small focal spot size is recommended for magnification to compensate for the loss of image detail that occurs when an object is magnified. A smaller focal spot produces a sharper image as it reduces the penumbra or edge blurriness in the image, which is crucial when the size of the image is increased.

This focus on image detail is particularly important in microscopic work, where the clarity of the magnified image is paramount to observe small structures accurately.