Which of the following is a recommended exposure reduction method?

• A. Remove or flush hot spot/source from area
• B. Increase exposure time
• C. Remove shielding
• D. Ignore hazard

Answer: (A)

The main idea is to eliminate the source of radiation or its hot spot from the exposure area. When you remove or flush away the hot spot or source, there’s essentially no radiation reaching workers, which is the most effective way to reduce dose. Increasing exposure time would increase the dose, while removing shielding or ignoring the hazard would only raise risk. In practice, removing the source is preferred when feasible, with additional protections like distance, shielding, and containment used as needed to manage remaining exposure.