American Registry of Radiologic Technologists (ARRT) Practice Exam

Question: 1 / 400

How high is a secondary radiation barrier typically above the ground?

5 feet

6 feet

7 feet

The correct choice indicates that a secondary radiation barrier is typically set at a height of 7 feet above the ground. This standard height is established to ensure that the barrier effectively protects individuals from scattered radiation produced during diagnostic procedures. Secondary barriers, such as those found in radiology departments, are designed to intercept secondary radiation that may scatter from patients or equipment, thereby reducing exposure to staff and visitors in adjacent areas.

The height of 7 feet is a commonly accepted standard based on the potential exposure levels and the typical positions of individuals, making it an important factor in designing safe radiology workplaces. This guideline helps maintain safety within the proximity to where radiological procedures are performed and reduces the risk of unnecessary radiation exposure for personnel who may be near the radiation source.

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