To avoid exposure to secondary radiation, the operator should stand what minimum distance from the x-ray head?

Standing at least 6 feet from the x-ray head is crucial to minimizing exposure to secondary radiation. Secondary radiation is produced when the primary beam interacts with matter, such as the patient or surrounding structures. By maintaining a distance of 6 feet, the operator significantly reduces their likelihood of being exposed to any scattered radiation that can occur as the x-rays pass through the body and continue into the environment.

This standard distance adheres to the principles of radiation safety and is based on established guidelines to protect healthcare providers while conducting x-ray procedures. The geometry of radiation dispersion indicates that radiation intensity decreases with distance, so being further away offers greater safety.

Other options do not provide adequate protection. For instance, positioning oneself to the side of the primary beam or too close could still expose the operator to secondary radiation, which is why a minimum safe distance is emphasized.