摘要：In this study,the gamma-ray spectrum of single elemental capture spectrum log was *** numerical simulation we obtain a single-element neutron capture gamma *** 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 *** 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 *** with single elemental capture gamma spectrum of schlumberger,the simulated characteristic peak and the spectral change results are in good agreement with *** characteristic peak positions observed also consistent with the data obtained from the national Nuclear Data Center of the International Atomic Energy *** neutron gamma spectrum results calculated using this simple method have practical *** also serve as an reference for data processing using other types of element logging tools.