Gamma Attenuation Properties of Li2B4O7 Doped with Gd
Abstract
In this study, the gamma attenuation properties of pure Li2B4O7 and 1 % mol Gd-doped Li2B4O7 were investigated using a gamma spectrometry system with narrow beam geometry. Samples were synthesized by the solid state reaction method. In the experimental part of the study, linear and mass attenuation coefficients were determined for 0.1218 MeV, 0.2447 MeV, 0.3443 MeV, 0.7789 MeV, 0.964 MeV, and 1.408 MeV energy peaks of Eu-152. The atomic and electronic cross sections, effective atomic number, and electron density, half value thickness (HVL), tenth value thickness (TVL), and mean free path (MFP) values were also calculated from these values. The obtained values were compared with XCOM values for theoretical data. It was found that Gd doping increased the attenuation coefficients in the low-energy region. However, its effects were limited at higher photon energies.
Keywords
Gamma attenuation coefficient, NaI(Tl) scintillation detector, lithium tetra borate, rare earth element
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