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Monte Carlo simulation of Cu, Ni and Fe grade determination in borehole by PGNAA technique

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Abstract

A prompt gamma neutron activation analysis borehole logging method for copper, nickel and iron grade estimation is proposed. The performance of the method was simulated by MCNP5 code. Based on the theory of neutron–gamma distribution on the borehole condition, the BGO scintillator and 3He neutron tube are adopted to record gamma ray spectrum and thermal neutron simultaneously, and least square method is used for the characteristic gamma ray counts calculation in the high energy range. The results of detection limit of metal grade in borehole condition indicate that the effectiveness of this logging method.

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Acknowledgements

The authors would like to acknowledge the support of the National Natural Science Foundation of China (41374125, 41574119 and 41504099), the National Major Oil and Gas Special Fund of China (2017ZX05019005-004), the Graduate Innovation Project (YCX2017006), and the Special Fund of Central College Basic Research Operating Expenses (17CX02070).

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Authors and Affiliations

  1. School of Geosciences, China University of Petroleum, Qingdao, 266580, Shandong, China

    Lili Tian, Feng Zhang, Juntao Liu & Xinguang Wang

  2. Laboratory for Marine Mineral Resources, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266071, China

    Feng Zhang & Xinguang Wang

  3. Zhengzhou Key Laboratory of Isotope Tracing and Detecting, Isotope Research Institute of Henan Academy of Sciences Co. Ltd, Zhengzhou, 450015, China

    Yongzhou Ti

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  1. Lili Tian
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  2. Feng Zhang
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  3. Juntao Liu
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  4. Xinguang Wang
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Correspondence to Feng Zhang.

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Tian, L., Zhang, F., Liu, J. et al. Monte Carlo simulation of Cu, Ni and Fe grade determination in borehole by PGNAA technique. J Radioanal Nucl Chem 315, 51–56 (2018). https://doi.org/10.1007/s10967-017-5636-9

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  • DOI: https://doi.org/10.1007/s10967-017-5636-9

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