Radiation Health & SafetyQuestion 6 of 100
Which pair of settings together determines the QUANTITY (number of photons) of radiation produced during an exposure?
a.kVp and filtration
b.kVp and collimation
c.Filtration and collimation
d.Milliamperage and exposure time
Explanation
Milliamperage multiplied by exposure time gives milliampere-seconds (mAs), which determines how many x-ray photons are produced. Kilovoltage governs beam energy and quality rather than quantity. Filtration removes low-energy photons and collimation restricts beam size; both reduce patient dose but neither is the primary control of photon quantity.
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