原子能科学技术2016，Vol.50Issue(11)：2067-2074,8.DOI:10.7538/yzk.2016.50.11.2067
地层元素测井中探测器响应数值模拟研究
Numerical Simulation on Detector Response in Formation Element Logging
摘要
Abstract
LaBr3 and BGO scintillators are often used for γ spectra detection to deter‐mine element and mineral content in formation element logging ,and the crystal scintilla‐tor counting efficiency and energy resolution are critical factors for the quality of meas‐uring spectrum and computational accuracy of element content .In this paper ,the detec‐tor spectrum response characteristics of LaBr3 and BGO scintillators were compared . The γ response spectra of the two kinds of scintillators were simulated under the forma‐tion condition with different kinds of elements and diverse contents by Monte Carlo method , and then the element content was calculated by least square processing method .The calculated results based on different scintillators have less diverse when the formation has the lesser kinds of elements .However ,when the formation has more kinds of elements , the γ ray peaks of different elements in the spectrum overlap and influence each other obviously .The more accurate results can be derived by LaBr3 detec‐tor than those by BGO detector .It reflects the element measurement advantage of high resolution scintillator in the formation with complex lithology .关键词
元素测井/闪烁探测器/能谱响应特性/蒙特卡罗模拟Key words
element logging/scintillator detector/spectrum response characteristic/Monte Carlo simulation分类
天文与地球科学引用本文复制引用
张锋,田立立,刘军涛,王新光,张泉滢..地层元素测井中探测器响应数值模拟研究[J].原子能科学技术,2016,50(11):2067-2074,8.基金项目
国家自然科学基金资助项目（41374125，41574119）；中央高校基本科研业务费专项资金资助项目 （）
