Which combination of methods can effectively reduce radiation exposure?

The combination of barriers, distance, and time forms the foundation of radiation protection. Each method plays a critical role in minimizing exposure to radiation, and when used together, they provide a comprehensive approach to safety.

Barriers are physical structures that can absorb or deflect radiation, such as lead walls or protective shields. They directly limit the amount of radiation that reaches an individual, providing an immediate and effective line of defense.

Distance involves increasing the space between the radiation source and the individual. The intensity of radiation decreases with distance due to the inverse square law, meaning that even a small increase in distance can lead to a significant reduction in exposure.

Time is an important factor because the longer an individual is exposed to radiation, the higher their total dose will be. By minimizing the time spent in a radiation area, exposure can be effectively reduced.

Utilizing all three methods simultaneously optimizes radiation protection, ensuring that exposure is kept at a minimum. This combined approach is essential for workers in environments where radiation is present, ensuring not only compliance with safety protocols but also the health and safety of individuals.