title: Application of Geant4 simulation for analysis of soil carbon inelastic neutron scattering measurements.
abstract: Inelastic neutron scattering (INS) was applied to determine soil carbon content. Due to non-uniform soil carbon depth distribution, the correlation between INS signals with some soil carbon content parameter is not obvious; however, a proportionality between INS signals and average carbon weight percent in ~10cm layer for any carbon depth profile is demonstrated using Monte-Carlo simulation (Geant4). Comparison of INS and dry combustion measurements confirms this conclusion. Thus, INS measurements give the value of this soil carbon parameter.
authors.affiliation: USDA-ARS National Soil Dynamics Laboratory, 411 South Donahue Drive, Auburn, AL 36832, United States. Electronic address: galina.yakubova@ars.usda.gov.
authors.forename: Galina
authors.initials: G
authors.lastname: Yakubova
authors.affiliation: USDA-ARS National Soil Dynamics Laboratory, 411 South Donahue Drive, Auburn, AL 36832, United States.
authors.forename: Aleksandr
authors.initials: A
authors.lastname: Kavetskiy
authors.affiliation: USDA-ARS National Soil Dynamics Laboratory, 411 South Donahue Drive, Auburn, AL 36832, United States.
authors.forename: Stephen A
authors.initials: SA
authors.lastname: Prior
authors.affiliation: USDA-ARS National Soil Dynamics Laboratory, 411 South Donahue Drive, Auburn, AL 36832, United States.
authors.forename: H Allen
authors.initials: HA
authors.lastname: Torbert
keywords: Geant4; Inelastic neutron scattering; Monte-Carlo simulation; Neutron generator; Soil carbon analysis