Texas Industrial Radiography Gamma Practice Test

If the dose rate at the perimeter of a posted Restricted Area is measured at 3mr/hr, what should you do?

1. Place "Caution Radiation Area" signs and continue working

2. No action is necessary

3. Move the posted perimeter back to 2mr/hr

4. Move the perimeter into where the radiation level is 5mr/hr

The correct answer is: Move the posted perimeter back to 2mr/hr

The appropriate action when the dose rate at the perimeter of a posted Restricted Area is measured at 3 mR/hr involves adhering to safety protocols for radiation exposure. In this context, moving the posted perimeter back to a level where the radiation levels drop to 2 mR/hr reflects compliance with regulatory safety standards that aim to protect personnel from excessive radiation exposure. Established guidelines typically dictate that Restricted Areas should be clearly defined based on specific dose rate thresholds. If monitoring shows that the measured dose rate exceeds the intended safe threshold at the perimeter, it is crucial to adjust the boundaries to ensure that individuals in the area are not exposed to potentially harmful radiation levels. This approach minimizes risks and enhances safety measures for workers in areas where ionizing radiation is present. Options that do not involve adjusting the boundary location fail to address the concern of elevated exposure levels and may not align with regulatory requirements designed to maintain safety in industrial radiography settings.