title: Continuous versus pulse neutron induced gamma spectroscopy for soil carbon analysis.
abstract: Neutron induced gamma spectra analysis (NGA) provides a means of measuring carbon in large soil volumes without destructive sampling. Calibration of the NGA system must account for system background and the interference of other nuclei on the carbon peak at 4.43 MeV. Accounting for these factors produced measurements in agreement with theoretical considerations. The continuous NGA mode was twice as fast and just as accurate as the pulse mode, thus this mode was preferable for routine soil carbon analysis.
authors.affiliation: USDA-ARS National Soil Dynamics Laboratory, 411 South Donahue Drive, Auburn, AL 36832, USA.
authors.forename: A
authors.initials: A
authors.lastname: Kavetskiy
authors.affiliation: USDA-ARS National Soil Dynamics Laboratory, 411 South Donahue Drive, Auburn, AL 36832, USA.
authors.forename: G
authors.initials: G
authors.lastname: Yakubova
authors.affiliation: USDA-ARS National Soil Dynamics Laboratory, 411 South Donahue Drive, Auburn, AL 36832, USA. Electronic address: allen.torbert@ars.usda.gov.
authors.forename: H A
authors.initials: HA
authors.lastname: Torbert
authors.affiliation: USDA-ARS National Soil Dynamics Laboratory, 411 South Donahue Drive, Auburn, AL 36832, USA.
authors.forename: S A
authors.initials: SA
authors.lastname: Prior
keywords: Inelastic neutron scattering; Neutron generator; Soil analysis; Soil carbon; Thermo neutron capture