Which factor does NOT affect the amount of radiation exposure?

The amount of radiation exposure is influenced by several key factors, including the time a person is exposed to the source of radiation, the distance from that source, and any shielding materials that may be present to block or reduce the radiation.

Time refers to how long an individual is in proximity to a radiation source; longer exposure typically results in a higher dose of radiation. The distance principle states that the closer one is to a radiation source, the greater the exposure will be, while increasing distance reduces exposure significantly based on the inverse square law. Shielding materials, such as lead or concrete, can also significantly reduce the radiation levels experienced by a person, depending on the type and thickness of the material.

On the other hand, the type of clothing worn does not have a significant impact on radiation exposure. While some specialized clothing (such as lead aprons) can reduce exposure during certain procedures, ordinary clothing does not effectively shield from radiation in the same way that proper distance, time management, and shielding materials do. This makes the influence of clothing negligible when considering overall radiation exposure.