American Registry of Radiologic Technologists (ARRT) Practice Exam

Primary barriers are designed to protect against the direct exposure of radiation, which includes being struck by the primary beam produced during imaging procedures. These barriers are typically composed of substantial materials, such as lead or concrete, that can effectively absorb and attenuate the high-energy photons generated by X-ray equipment.

In a radiological setting, primary barriers are strategically positioned to ensure that any primary radiation—meaning the beams emitted from the X-ray tube aimed at the patient—does not lead to harmful exposure for healthcare personnel or the public. Therefore, it is accurate to state that primary barriers can indeed be directly hit by the primary beam, as they are intentionally constructed to handle this direct exposure safely.

This understanding is crucial for maintaining safety protocols in radiologic practices, emphasizing the importance of proper barrier implementation to shield individuals from radiation hazards.