Deconvolution of gamma-ray logs by optimum error distribution

Abstract

The quantitative interpretation of gamma-ray logs from uraniferous zones has usually been performed using a technique almost twenty years old, known as the iterative approach (Scott 1963). More recently, Conaway and Killeen (1978) showed, based on theoretical studies of eastern European workers (e.g. Suppe & Khaikovich 1960), that an inverse filter could be derived which, when convolved with the recorded log, could remove the effects of the logger's impulse response and so obtain the true radiometric assay profile in the drill hole. This technique, which is much more efficient in terms of computation time than the earlier iterative approach, is known as the inverse filter technique.