In-depth survey of nuclear radiation attenuation efficacies for high density bismuth lead borate glass system
作者： Shams A.M. Issa , Shams A.M. Issa , Taejoon Park , Jonghun Yoon , Dong-Eun Lee
DOI: 10.1016/J.RINP.2021.104030
关键词:
摘要: Abstract MCNPX, Geant4 and FLUKA codes are employed to compute mass attenuation coefficients (μ/ρ) for 20Bi2O3-(80-x)B2O3-xPbO (x = 0, 20, 30, 40 60 mol%) glasses at 60 KeV, 133Ba (81, 161, 223, 276, 303, 356 384 keV), 57Co (122 136 KeV), 22Na (511 1275 keV), 137Cs (662 keV), 54Mn (835 keV), 60Co (1173 1333 keV) 42K (1524 keV) photon peaks where KeV energies utilized Mammography, Dental, General Computed tomography (CT) scanning accordingly, in this study. All simulated μ/ρ outcomes accuracy was verified by WinXCOM Phy-X/PSD programs’ findings we noticed a satisfactory agreement among them. From linear coefficient (μ) values effective atomic number (Zeff), electron density (Neff), half-value layer (HVL), tenth-value (TVL) mean free path (MFP) have been determined. 20Bi2O3-20B2O3-60PbO (mol%) glass HVL MFP compared with some commercial glasses, alloys, polymers, concretes lead ceramics corresponding values. Later equivalent numbers (Zeq) applying geometric progression (G–P) fitting method 1 – mfp penetration depths (PDs) 0.015–15 MeV energy range exposure buildup factors (EBFs) absorption (EABFs) were estimated. At all selected twenty derived radiation protection efficiency (RPE) results confirmed studied samples’ excellent efficacy low photons absorption. Moreover, SRIM stopping powers (MSPs) projected ranges (PRs) protons α-particles utilizing ESTAR database MSPs continuous slowing down approximation (CSDA) electrons determined kinetic (KE) of 0.015–15 MeV. Further fast neutron removal cross-sections (ΣR), 0.0253 eV neutrons coherent incoherent scattering (σcs σics), cross-section (σA) total (σT) quantities evaluated. Derived ΣR changed 0.1166–0.123 cm−1 depending on PbO addition chosen samples. 20Bi2O3-80B2O3 has larger σT (23.094 cm−1) samples thermal while sample shows superior signifying included positive effect.
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