Which of the following is the best practice to reduce radiation exposure to staff?

Utilizing shielding materials is recognized as one of the most effective practices for reducing radiation exposure to staff. Shielding works by absorbing or deflecting radiation, thereby preventing it from reaching individuals working in or near radiation-producing areas. Common materials used for shielding include lead, concrete, and specialized plastics, each selected based on the type and energy of the radiation involved.

When applied in various settings, such as medical imaging or nuclear facilities, these materials can significantly lower the potential dose received by individuals. This practice is part of the fundamental principles of radiation protection, which aim to minimize exposure while still allowing necessary work involving radiation to be performed safely.

In contrast, increasing time spent in radiation areas and decreasing distance from the source both lead to greater exposure, which directly contradicts the objectives of radiation safety. Avoiding protective measures altogether would similarly expose staff to unnecessary risks when effective solutions, such as shielding, are available to safeguard their health. Therefore, utilizing shielding materials is not only a best practice but a crucial component of an effective radiation protection strategy.