“neutron–gamma sonde”的概念、定义、翻译、参考文献-科学参考

单词	neutron–gamma sonde
释义	neutron–gamma sonde Geology and Earth Sciences An instrument package for measuring the amount of hydrogen present within the rocks surrounding a borehole. The sonde contains a neutron source and a gamma-ray detector. The gamma rays induced in the rocks by neutron bombardment are proportional to the amount of hydrogen present. The device can be used to determine the porosity of the surrounding rocks.
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