Development of Luggage Radiation Monitor

The luggage radiation monitor with NaI(Tl) detector can combined with X-ray monitor to be used for radioactivity monitoring in railway station and airport. The moving average detection method is used for the monitor. At the background intensity of 0.1 μGy/h and the moving speed of 0.2 m/s, the sensitivity of the monitor is 6.7×10³, 3.7×10³, 6.7×10³ Bq, respectively for ¹³⁷Cs, ⁶⁰Co, ¹³³Ba radiation source, and the sensitivity is about 2 g for high enrichment uranium.