NaI(Tl)闪烁探测器由于具有较高的探测效率,价格也比较便宜,被广泛地应用于国防工业和国民经济建设中,本文介绍了石油测井中所用到的NaI(Tl)闪烁探测器。利用我们的多道分析器(ORTEC918A),对组装好的NaI(Tl)探测器的性能作了测试,分析了影响探测器性能的因素,为探测器的选型、定型提供了实验方法。 NaI (Tl) Scintillation Detector is widely used in national defense industry and national economy due to its high detection efficiency and low cost. This paper introduces NaI (Tl) scintillation detector used in petroleum logging . The performance of the assembled NaI (Tl) detector was tested by our multi-channel analyzer (ORTEC918A). The factors influencing the performance of the detector were analyzed and the experimental methods were provided for the selection and finalization of the detector.