利用中子轰击地层，测量由此产生的非弹性和俘获伽马射线谱。
The tool bombards the formations with neutrons and measures both the inelastic and capture gamma ray spectra that results.
本文分析了应用直接作用模型计算中子非弹性散射截面时应当如何调整参数。
The process of adjusting parameters which is oppeared in the direct interaction model of inelastic neutron scattering is investigated.
影响地层评价的中子反应有四种，包括中子弹性散射、中子非弹性散射、快中子反应和中子俘获。
There are four principal neutron interactions that affect formation evaluation: elastic neutron scattering, inelastic neutron scattering, fast-neutron reactions and neutron capture.
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