What is the minimum distance the operator must be from the x-ray tube during exposure on mobile x-ray equipment?

• A. 1 m (3 ft)
• B. 2 m (6 ft)
• C. 2.5 m (8 ft)
• D. 3 m (10 ft)

Answer: (B)

The minimum distance the operator must maintain from the x-ray tube during exposure on mobile x-ray equipment is indeed 2 meters (6 feet). This distance is established to reduce the operator's exposure to ionizing radiation. The principle of radiation safety emphasizes maintaining a safe distance from the source of radiation, as intensity decreases with distance according to the inverse square law.

This specific distance is recommended to ensure that the operator is protected from scattered radiation produced during the x-ray exposure. By being at least 2 meters away, the operator significantly minimizes their risk of receiving an unnecessary radiation dose while still being able to observe the procedure and intervene if necessary. This practice aligns with safety standards and guidelines set by health organizations to promote effective radiation protection measures in medical imaging environments.