Exposure to scattered radiation is directly proportional to which factor?

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Multiple Choice

Exposure to scattered radiation is directly proportional to which factor?

Explanation:
Scattered radiation comes from photons that interact inside the patient after the primary beam passes through. The amount of scatter is tied to how many photons actually deposit energy in the patient—i.e., the patient dose. The more dose delivered to the patient, the more scattering events occur, so exposure to scatter increases directly with patient dose. Distance from the patient reduces scatter due to the inverse-square law, and filtration or kVp influence the beam’s energy and quantity, but the primary, direct relationship is with how much dose the patient receives.

Scattered radiation comes from photons that interact inside the patient after the primary beam passes through. The amount of scatter is tied to how many photons actually deposit energy in the patient—i.e., the patient dose. The more dose delivered to the patient, the more scattering events occur, so exposure to scatter increases directly with patient dose. Distance from the patient reduces scatter due to the inverse-square law, and filtration or kVp influence the beam’s energy and quantity, but the primary, direct relationship is with how much dose the patient receives.

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