title: Determination of the vertical distribution of radioelements (K, U, Th, Cs) in soils from portable HP-Ge spectrometer measurements: a tool for soil erosion studies.
abstract: Soil erosion studies, based on the 137Cs technique, require a lot of time-consuming cores to determine soil loss or gain. We show that portable HP-Ge spectrometer can be used to determine the content and the distribution in the soil of natural and artificial radionuclides. Simulations of gamma-rays transport throughout the soil profile used a Monte Carlo code. The methodology requires a unique undisturbed coring site to build the models, calibrate the spectrometer readings and derive soil denudation or accumulation thickness.
authors.affiliation: BRGM-CDG/Modeling and Applications Unit, 45060 Orléans, France. j.perrin@brgm.fr
authors.forename: J
authors.initials: J
authors.lastname: Perrin
authors.forename: F
authors.initials: F
authors.lastname: Carrier
authors.forename: L
authors.initials: L
authors.lastname: Guillot