ASNT Industrial Radiography Radiation Safety Practice Test

In a field setting with a 300 kV X-ray system, what minimum boundaries must be established?

1. Low radiation and high radiation areas

2. Radiation areas and safe zones

3. High radiation and radiation areas

4. Controlled zones and restricted areas

The correct answer is: High radiation and radiation areas

In a field setting with a 300 kV X-ray system, establishing boundaries is crucial for ensuring safety and compliance with radiation protection standards. The correct answer emphasizes the need for differentiating between high radiation areas and radiation areas. High radiation areas are defined as those where radiation exposure levels exceed a certain threshold, typically 1 mSv in any one hour at a distance of 30 centimeters from the radiation source. In contrast, regular radiation areas have lower exposure limits and still require monitoring and control to protect personnel from unnecessary exposure. By delineating these areas, personnel can be properly informed of where heightened precautions must be taken. This ensures that all individuals working near the X-ray system understand where potential risks exist and can take the necessary safety measures to limit their exposure. Additionally, appropriate signage and barriers can then be deployed to guide movements and prevent inadvertently entering higher risk zones. Establishing these boundaries effectively aids in compliance with regulatory requirements and promotes a safety culture within the workspace, thereby safeguarding both personnel and the general public.