In this study, the gamma-ray spectrum of single elemental capture spectrum log was simulated. By numerical simulation we obtain a single-element neutron capture gamma spectrum. The neutron and photon transportable processes were simulated using the Monte Carlo N-Particle Transport Code System (MCNP), where an Am-Be neutron source generated the neutrons and thermal neutron capture reactions with the stratigraphic elements. The characteristic gamma rays and the standard gamma spectra were recorded, from analyzing of the characteristic spectra analysis we obtain the ten elements in the stratum, such as Si, Ca, Fe, S, Ti, Al, K, Na, Cl, and Ba. Comparing with single elemental capture gamma spectrum of Schlumberger, the simulated characteristic peak and the spectral change results are in good agreement with Schlumberger. The characteristic peak positions observed also consistent with the data obtained from the National Nuclear Data Center of the International Atomic Energy Agency. The neutron gamma spectrum results calculated using this simple method have practical applications. They also serve as an reference for data processing using other types of element logging tools.

中文翻译：

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使用Monte-Carlo模拟分析单个元素捕获光谱测井的元素光谱特征

在这项研究中，模拟了单元素捕获光谱对数的伽马射线光谱。通过数值模拟，我们获得了单元素中子俘获γ谱。使用蒙特卡罗N粒子输运编码系统（MCNP）模拟了中子和光子的可迁移过程，其中Am-Be中子源与地层要素一起产生中子和热中子捕获反应。记录特征γ射线和标准γ谱，通过对特征谱分析的分析，我们得到了地层中的十种元素，如硅，钙，铁，硫，钛，铝，钾，钠，氯和钡。 。与斯伦贝谢的单元素捕获伽马谱相比，模拟的特征峰和光谱变化结果与斯伦贝谢具有很好的一致性。观察到的特征峰位置也与从国际原子能机构国家核数据中心获得的数据一致。用这种简单方法计算出的中子伽马能谱结果具有实际应用价值。它们还用作使用其他类型的元素记录工具进行数据处理的参考。