title: Efficiency computation for gamma-ray spectrometry assessment of samples with intrinsic inhomogeneity.
abstract: The full energy peak efficiency for inhomogeneous samples, comprising a number of components with different activity and matrix is evaluated by Monte Carlo simulation. The distribution of the values of the efficiency due to the effects of inhomogeneity is constructed. In the particular case when one of the components is a highly active and highly attenuating medium, then the efficiency and its uncertainty at low energies is sensitive to the properties of this component, including the dimensions of the grains.
authors.affiliation: Physics Department, University of Bucharest, Romania. Electronic address: Octavian.Sima@partner.kit.edu.
authors.forename: Octavian
authors.initials: O
authors.lastname: Sima
keywords: Full energy peak efficiency; Gamma-ray spectrometry; Inhomogeneous samples; Monte Carlo simulation; Uncertainty