title: Estimation of thermal neutron absorption cross-section from K, U and Th concentrations for Miocene rocks from the Carpathian Piedmont in Poland using artificial neural networks.
abstract: The radiometric K, U and Th concentrations and neutron absorption cross-section sigma a of rock samples obtained from coring are analysed. The cores are from wellbores located in the Sucha-Jordanów region (Carpathian Mountains) and from gas producing Miocene formations in the Carpathian foothills. Correlation coefficients between the neutron absorption cross-section (sigma a) and K, U and Th concentrations are presented. Neural network representation of the function sigma a = f(K, U, Th) obtained for a region can later be used for sigma a estimation from spectrometric probe results in uncored wells.
authors.affiliation: The H. Niewodniczanski Institute of Nuclear Physics, Krakow, Poland. jerzy.loskiewicz@ifj.edu.pl
authors.forename: J
authors.initials: J
authors.lastname: Loskiewicz
authors.forename: J
authors.initials: J
authors.lastname: Swakoń
authors.forename: K
authors.initials: K
authors.lastname: Kulczykowska
mesh_terms: D004603:Elements, Radioactive / Q000032:analysis*; D055593:Geological Phenomena; D005844:Geology; D016571:Neural Networks, Computer; D009501:Neutron Activation Analysis; D011044:Poland; D011188:Potassium / Q000032:analysis; D013910:Thorium / Q000032:analysis; D014501:Uranium / Q000032:analysis
chemical_list: D004603:Elements, Radioactive; D014501:Uranium; D013910:Thorium; D011188:Potassium