Oklahoma Radiation Safety Practice Test 2025 – Full Exam Prep

The primary factor that determines the quality of the x-rays produced in radiographic imaging is the kilovolt peak (kVp) settings. The kVp setting controls the energy level of the x-rays generated; a higher kVp means the x-rays have greater energy and penetration ability. This increased energy level enhances the overall quality of the x-ray beam, improving the contrast and detail in the resulting images.

While other options, such as milliamperage (mA) settings and exposure duration, do influence the quantity of x-rays produced or the overall darkness of an image, they do not directly affect the inherent quality of the x-rays in terms of their penetrating power and contrast. Film speed also plays a role in how much exposure is needed for a given image but is dependent on how well the film can respond to the quality of the x-rays produced. Thus, kVp is the principal determinant of the quality of the x-ray beam itself.