中文摘要：

为了能够快速、有效地检测区分出人工放射源与天然放射源,使用大面积塑料闪烁体设计了一套车辆通道式辐射检测系统.在系统的设计过程中,解决了复杂的环境本底补偿、如何大幅降低误报警率,以及使用标准的137Cs放射源标定仪器确定甄别域的问题.实验的结果表明,该系统能够快速而准确地识别并区分出人工放射源和天然放射源,不但有效地克服了现有的人工放射源检测方法的缺陷,而且准确性也得到了较大提高.

英文摘要：

In order to detect and distinguish the Artificial radiation sources and natural radiation sources quickly and efficiently, a vehicle-channel radiation monitoring system based on the large area plastic scintillator is designed, which solve the complex background compensation, greatly reduce the false alarm rate and use the 137Cs to identified the screening domain. The experimental results shows that the system can detect and distinguish the Artificial radiation sources and natural radiation sources quickly and efficiently. The system not only effectively overcome the short-comings of existing artificial radioactive detection methods,but also greatly improved the accuracy.