Which of the following is a key factor in minimizing exposure to radiation?

Minimizing exposure to radiation relies heavily on the principle of distance, which is critical in radiation safety protocols. The intensity of radiation decreases significantly as the distance from the source increases. This is often referred to as the inverse square law, which states that doubling the distance from a radiation source effectively reduces exposure to one-quarter of its original intensity. Therefore, increasing the distance between yourself and the radiation source is one of the most effective methods to reduce exposure, making it a key factor in radiation safety.

While factors such as the type of equipment used might have an impact on the level of radiation exposure, it is the physical distancing that has the most direct and quantifiable effect on minimizing that exposure. Other options, like the color of clothing or the time of day, do not play a significant role in radiation protection.