摘要 |
An apparatus for performing an operation in a borehole penetrating the earth includes a carrier and a neutron source that emits neutrons and is disposed in the carrier. The apparatus also includes a target disposed in the carrier and that produces gamma rays as a result of interactions between neutrons produced by the neutron source and at least one material forming the target. The apparatus also includes a gamma ray detector that detects the gamma rays produced by the target and is disposed in the carrier.
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