Which of the following is a method to minimize radiation exposure?

Using shielding materials is a well-established method for minimizing radiation exposure. Shielding works by placing a physical barrier between the source of radiation and an individual, which can significantly reduce the amount of radiation that reaches a person. Different materials, such as lead, concrete, or specialized plastic, can be used depending on the type of radiation (such as alpha, beta, or gamma radiation).

The effectiveness of shielding is based on concepts from radiation physics, where the attenuation of radiation occurs as it passes through a medium. Heavier and denser materials are generally more effective at stopping or reducing radiation, thus protecting individuals from harmful exposure. This method is critical in various settings, including medical facilities, nuclear power plants, and research laboratories, where radiation sources are present, ensuring safety for both workers and the public.

In contrast, other options, such as increasing time spent near the source, using minimal protective gear, or ignoring exposure protocols, would lead to increased risk of radiation exposure and are not safe practices. Effective radiation safety protocols prioritize minimizing exposure through strategies like proper shielding, maintaining safe distances, and adhering to regulatory guidelines regarding personal protective equipment.