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Updated: Jun 27, 2025

Measurements of Soil Carbon by Neutron-Gamma Analysis in Static and Scanning Modes
Published on: August 24, 2017
Carbon analysis of large soil samples using the tagged neutron method: Accounting for radiation attenuation
Aleksandr Kavetskiy1, Galina Yakubova1, Stephen A Prior1
1USDA-ARS National Soil Dynamics Laboratory, 411 South Donahue Drive, Auburn, AL, 36832, USA.
Abstract:
Non-destructive methodology for determining carbon content in large or semi-infinite (soil) samples is discussed. This methodology is based on deconvoluting the sample's gamma spectra (received by tagged neutron method) on the sample component's spectra by accounting for neutron and gamma radiation attenuations. This algorithm was tested with both Monte-Carlo simulations and experimental gamma spectra. Good agreement was found between defined and actual sample component content. Application of this method for soil carbon determinations in agricultural fields is discussed.
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