During exposure, what is prohibited regarding the tube housing and PID?

• A. The tube housing and PID must not be hand-held during an exposure
• B. The tube housing and PID must be hand-held during an exposure
• C. They must be placed on a surface away from the patient
• D. They must be removed from the room during exposure

Answer: (A)

During exposure, the tube housing and PID must not be hand-held. Keeping the tube head and beam-directing device stationary on a proper stand or mount ensures the operator stays out of the primary beam, minimizes their radiation exposure, and maintains stable, accurate beam alignment. Hand-holding would put the operator at risk and make it easy to misalign the beam or cause the exposure to be repeated. The purpose is to use a fixed setup so the beam is consistently directed at the correct area while the operator remains protected behind barriers or at a safe distance. The other options either promote unsafe handling, hinder proper positioning, or are unnecessary for routine practice.