RT Journal Article
T1 Self-attenuation effect correction methods employed for gamma-ray spectrometry: A critical review study
A1 Barba Lobo, Alejandro
AB The usage of gamma-ray spectrometry has become generalized due to several important advantages that offers versus other radiometric techniques such as alpha-particle spectrometry or liquid scintillation counting. When using gamma-ray spectrometry, the full-energy peak efficiency, FEPE, must be accurately and precisely obtained for a wide range of sample chemical compositions, apparent densities and thicknesses, as well as geometries and energies. For this, the self-attenuation effect corrections must be properly applied for each case in order to transform the calibration sample FEPE into problem sample FEPE. Nowadays, different experimental and simulated methodologies such as Cutshall and Appleby models, and LabSOCS, EFFTRAN, DETEFF, PENELOPE and Geant4, respectively, are generally applied to obtain the problem sample FEPE. However, in many cases, selfattenuation effect corrections can be not properly applied. For this reason, the aim of this study is to comprehensively critical review many different experimental and simulated methodologies usually used to apply selfattenuation effect corrections, offering exhaustive discussions about their proper use as well as proposals to improve many different aspects related to them, and making deep comparisons among their advantages and disadvantages. Moreover, an exhaustive comparison among FEPEs obtained using experimental and simulated methodologies was addressed. In the case of the sample pretreatment, this study also offers a wide discussion of many aspects related to their homogenization process regarding the chemical composition and compaction. In addition, the proper selection of the multielement technique for the major element concentrations is also widely discussed in this study, where an accurate measurement of major element concentrations is essential to properly obtain the sample mass attenuation coefficient which is needed to apply self-attenuation effect corrections.
PB Elsevier
SN 0969-806X
SN 1879-0895 (electrónico)
YR 2025
FD 2025
LK https://hdl.handle.net/10272/27463
UL https://hdl.handle.net/10272/27463
LA eng
NO Barba-Lobo, A. (2025). Self-attenuation effect correction methods employed for gamma-ray spectrometry: A critical review study. Radiation Physics and Chemistry, 232, 112665. https://doi.org/10.1016/j.radphyschem.2025.112665
DS Repositorio Institucional de la Universidad de Huelva
RD 30 may 2026