For a 75-kVp beam, how much does a 0.5-mm apron attenuate the radiation?

Attenuation refers to the reduction of radiation intensity as it passes through a material. In the context of a 75-kVp X-ray beam and a 0.5-mm lead apron, specific values have been established regarding how effectively lead can absorb or attenuate radiation at different energy levels.

At 75 kVp, a 0.5-mm thick lead apron typically attenuates approximately 88% of the radiation. This level of attenuation is significant enough to drastically reduce the exposure to the individual wearing the apron. The lead material is effective due to its high atomic number and density, allowing it to absorb more photons and reduce the overall dose.

This makes the choice of 88% the most accurate for a 0.5-mm lead apron at this energy level. Understanding these attenuation characteristics is crucial for professionals in the field to ensure adequate protection against radiation exposure.