论文部分内容阅读
引言在环境γ辐射监测中,要求监测仪器具有足够高的灵敏度、良好的能量响应与角响应,及抗干扰能力强、统计起伏小、功耗低、携带方便等要求。我们对闪烁探测器在环境γ辐射照射量率测量中的应用开展了研制工作,本文对其工作原理、样机性能、及实际应用结果予以介绍。原理简述测量γ辐射场照射量率的基本方法是测量自由空气电离室的电离电流。对低水平环境γ辐射照射量率测量、大都采用高气压电离室以提高探测灵敏度。
Introduction In the monitoring of environmental γ radiation, monitoring instruments are required to have high enough sensitivity, good energy response and angular response, strong anti-interference ability, small statistical fluctuation, low power consumption and easy to carry. We have carried out research on the application of scintillation detector in measuring environmental gamma radiation dose rate. This paper introduces its working principle, prototype performance and practical application results. A brief introduction to the principle of measurement of γ radiation field irradiation rate of the basic method is to measure the free air ionization chamber ionization current. For low level environment γ radiation exposure rate measurement, most of the high pressure ionization chamber to improve the detection sensitivity.