How far in front of the RS Array does the radiation hazard extend?

• A. 60 meters
• B. 120 meters
• C. 240 meters
• D. 12 meters

Answer: (B)

Radiation hazard distance is defined by the point where the radiation level falls to the maximum permissible exposure for personnel. The RS Array directs its energy mainly forward, so the hazard zone sits in front of it as a cone whose boundary is set by the device’s power, frequency, and the safety limits for exposure. For this setup, calculations based on those parameters define a frontward hazard boundary of 120 meters. Within that distance, exposure can exceed safe limits without protection or avoidance; beyond 120 meters, the levels are considered safe under standard conditions. The other distances would not align with the published safe-exposure boundary for this array.