Which adjustment would NOT directly affect the quality of an X-ray image?

When considering factors that influence the quality of an X-ray image, each of the choices plays a role, except for changing the anode rotation speed. The anode rotation speed primarily affects the heat dissipation and overall efficiency of the X-ray tube, allowing for longer exposure times and higher tube outputs without overheating. While it can indirectly influence the overall performance of the X-ray system, it does not directly alter the quality, contrast, or sharpness of the X-ray image itself.

In contrast, adjusting the kilovolt peak (kVp) settings directly affects the penetration power of the X-ray beam, influencing contrast and image quality. Higher kVp values lead to greater penetration, resulting in images that can better demonstrate different tissue densities. Similarly, adjusting the milliampere-seconds (mAs) impacts the quantity of X-rays produced, directly correlating to the image density; a lower mAs may result in an underexposed image, while a higher mAs increases exposure and can improve image clarity. Modifying the focal spot size relates to image sharpness; a smaller focal spot produces better detail, particularly in imaging structures that require high resolution.

Therefore, while the anode rotation speed is crucial for the operational efficiency of the X-ray