Regulatory survey of ambient dose equivalent rates around baggage scanners in Tanzania.

The deployment of baggage scanners in airports and public facilities requires periodic radiation surveys to ensure occupational safety and regulatory compliance. This study assessed ambient dose equivalent rates (H* (10)) around baggage scanners at selected airports, ports, and commercial facilities. Measurements were taken at: 1 m from the entry and exit points, 2 m from the scanner, and the control panel. Measured dose rates ranged from 0.02 to 0.55 μSv/h, with the highest values near the entry and exit openings. Dose rates at operator positions were generally ≤0.10 μSv/h, comparable to background levels. Conservative annual effective dose ranged from 0.28 to 4.22 mSv/year. Realistic occupancy scenarios indicated that most operators received <1 mSv/year. Estimated doses were below the 20 mSv/year recommended by international standards. These results confirm adequate radiation safety margins in Tanzanian facilities. Continued routine monitoring and personal dosimetry are recommended to maintain compliance and protect workers.