Computed Tomography Technologist Practice Exam

Question: 1 / 615

Why is the quality factor important in radiation measurement?

It determines the intensity of the radiation

It indicates biological effectiveness of the radiation

The quality factor is crucial in radiation measurement because it indicates the biological effectiveness of different types of radiation. Different types of radiation have varying impacts on biological tissues, and the quality factor helps quantify this difference. For instance, alpha particles are more biologically damaging per unit of energy deposited in tissue than beta particles or gamma rays, which is reflected in their higher quality factor. This allows for a more accurate assessment of the potential health risks associated with exposure to different radiation types, ultimately guiding safety standards and protective measures in medical and environmental contexts.

While the intensity of radiation, physical properties, and patient safety are all important considerations in radiation measurement and exposure, they do not specifically address how we assess the biological impacts of that radiation on living tissues, which is the primary role of the quality factor.

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It measures the physical properties of radiation

It evaluates patient safety

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