Deconvolving gamma-ray logs by adaptive zone refinement

B. Dickson*, M. Craig

*Corresponding author for this work

    Research output: Contribution to journalArticle

    2 Citations (Scopus)

    Abstract

    Uranium exploration and mining make widespread use of gamma-ray logs to determine ore-grade distribution in situ. Attenuation, scattering, and uncollimated detectors all degrade the signal, hampering accuracy. We deconvolve their effects from the measured logs by space-domain processing with the aid of a function that takes account of detector length and uranium ore-zone thickness. The output quantifies uranium grade by zones of specified location and thickness. With this method, thin zones of very high grade can be used for calibration. Illustrative data come from model pits in Australia, Canada, and the USA.

    Original languageEnglish
    Pages (from-to)D159-D169
    Number of pages11
    JournalGEOPHYSICS
    Volume77
    Issue number4
    DOIs
    Publication statusPublished - Jul 2012

    Keywords

    • Borehole geophysics
    • Deconvolution
    • Logging
    • Radiation

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