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伽马
    PRINCIPLE AND APPLICATION EFFECT OF SELECTIVE GAMMA GAMMA LOGGING
    选择伽马伽马测井法的原理和应用效果
    The CGR-ZN Core Gamma Continuous Measuring Instrument
    CGR-ZN型岩心伽马连续测量仪
    THE APPLICATION OF FIELD MULTI?CHANNEL GAMMA? RAY SPECTRAL SURVEY TO THE GEOLOGICAL EVALUATION OF NUCLEAR ENVIRONMENT
    野外多道伽马能谱测量在核环境地质评价中的应用
    Applications of Prompt- Gamma Neutron Activation for Coalfield Logging
    中子活化瞬发伽马方法在煤田测井中的应用
    In the central gas fields in Eerduosi Basin, natural gamma ray spectrometry logging has been successfully used to ① identify clay compositions;
    本文通过两个实例阐述自然伽马能谱测井在陕甘宁盆地中部气田的应用:①识别粘土矿物成分;
    With a 137 Cs gamma ray source, a short spaced NaI detector (SD) and six long spaced NaI detectors (LD), the сгдт HB tool was originally designed to determine cement density and casing thickness in 146 mm or 168 mm outer diameter (OD) casing.
    俄罗斯 сгдт测井仪使用 1 37Cs伽马源及一个短源距探测器和多个周向排列的长源距探测器来测量水泥环密度和套管壁厚 ,适合在外径 146 mm或 16 8mm的套管中应用。
    This paper describes the working principle and main technical indices of the newly developed CD? 10 field portable gamma ray full spectrometer.
    介绍了最新研制的CD10 野外便携式伽马全谱仪工作原理和主要技术指标。
    Its gamma ray energy analytical range is 30~3 000 keV,it has 1 024 analytical channels,its 137 Cs energy resolution ratio is lower than 12%,and the digital spectrum stabilizing technique is adopted instead of radioactive spectrum stabilizing reference source so as to realize noninterference natural gamma ray full spectrometry. With the examples of its application to geological evaluation in nuclear environment,the paper illustrates main characteristics and prospects of the gamma ray full spectrometer.
    该仪器对伽马射线能量分析范围是30 ~3 000 keV,分析道数为1 024 道,对137Cs 的能量分辨率小于12 % ,取消了放射性稳谱参考源,采用数字稳谱技术,实现了无干扰天然伽马射线全谱(30 ~3 000 keV)测量,并以在核环境地质评价中的应用实例,说明了伽马全谱仪的主要特点和应用前景。
 

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