【作者】 黄雄亮； 贾立权； 雷卫国； 尹晓利； 贾明雁； 胡永乐； 金玉仁；

【Author】 HUANG Xiong-liang;JIA Li-quan;LEI Wei-guo;YIN Xiao-li;JIA Ming-yan;HU Yong-le;JIN Yu-ren;Northwest Institute of Nuclear Technology;

【机构】 西北核技术研究所；

【摘要】 现场视察有线随钻γ能谱测井仪是与孔底动力钻钻机相匹配的,主要用于钻探过程中实时监测γ能谱,通过分析判断有无人工放射性异常,判别核爆炸的特征核素。该测井仪由地面仪器和井下仪器两大部分构成,可完成γ射线的探测、谱脉冲信号的采集、线性放大、多道分析、能谱传输和数据处理等功能。经测试,随钻γ能谱测量系统工作状态良好,其能谱测量范围50keV³000keV,能量分辨率优于11%（25℃,662keV）,采用稳谱技术系统在17小时内¹³⁷Cs峰位漂移小于0.5%。现场视察有线随钻γ能谱测井仪在某钻探实践中得到了应用,效果良好。更多还原

【Abstract】 Gamma Measurement While Drilling(MWD) of On-Site Inspection(OSI) is an important technology to clarify whether a nuclear weapon test explosion or any other nuclear explosion has been carried out.In order to collect the facts that might assist to identify any possible violator as fast as possible,an Instrument of Gamma-Spectrometry Measurement While Drilling was developed which can collect the gamma spectra while drilling and can offer the evidences whether existed abnormity gamma radiation,and can indicate the depth of radiation source undersurface.To ensure the reliability of the results,several anti-jamming methods and the anti-float technique were introduced and the software used for the spectrum acquirement and instrument controlment was programmed.Laboratorial testing results show that the instrument as well as the software fulfills the requirements of OSI.更多还原