建立了一套井型NaI(Tl)活度测量装置,装置由井型NaI(Tl)探测器、数字化谱仪、小型屏蔽室、数据获取系统组成。井型NaI(Tl)探测器尺寸为φ127 mm×127 mm,井尺寸为φ38 mm×75 mm,探测器主要用于探测放射性核素发射的γ射线、X射线。数字化谱仪集放大、高压、多道脉冲幅度分析功能于一体,用于采集NaI(Tl)探测器输出的脉冲信号,并对采集到的信号进行数字化滤波成形、基线恢复、堆积识别、幅度分析等。数据获取系统 A well-type NaI (Tl) activity measuring device was established. The device consisted of a well-type NaI (Tl) detector, a digital spectrometer, a small shielded room and a data acquisition system. The well type NaI (Tl) detector is φ127 mm × 127 mm and the well size is φ38 mm × 75 mm. The detector is mainly used to detect γ-rays and X-rays radiated by radionuclides. The digital spectrometer integrates amplification, high pressure and multi-channel pulse amplitude analysis to collect the pulse signal output from the NaI (Tl) detector. The collected signals are digitized, shaped, recovered, stacked and identified, and amplitude analyzed Wait. Data Acquisition System