Calculation of the different shielding properties of locally developed ilmenite-magnetite (I-M) concrete

Abstract

-In this study the total atomic cross-section (σ a ), total electronic cross-section (σ e ), effective atomic number (Z eff ) and effective electron density (N eff ) of locally developed ilmenite-magnetite (I-M) concrete were calculated analytically for different photon energies from 1 keV to 20 MeV and compared with concretes of different densities and compositions. The effect of Z eff on the mass attenuation coefficient (μ/ρ, σ a , σ e ) is shown graphically. The values of σ a , σ e , Z eff and N eff of I-M concrete were found to be higher than those of the ordinary concretes and in some cases than those of heavy concretes, which proved I-M concrete's shielding effectiveness. The results of this study will provide some useful information for a shielding material database for practical shielding calculation.

Gamma-ray, fast neutron and ion shielding characteristics of low-density and high-entropy Mg–Al–Ti–V–Cr–Fe–Zr–Nb alloy systems using Phy-X/PSD and SRIM programs

“…The half-value layer (HVL), tenth value layer (TVL), and mean free path ( λ ) are the alternate methods for measuring the shielding capabilities of materials. The HVL and TVL are the thickness of material required to attenuate radiation intensity by half and 90%, respectively, and are given by the relations: and [49] . The HVL and TVL are particularly significant since they aid in calculating the amount of layer thickness required for achieving acceptable reduction [7] .…”

Evaluation of Gamma Radiation Attenuation Characteristics of Different Type Shielding Materials used in Nuclear Medicine Services

“…The results of MFP are given mass absorption coefficient (µ/ρ) for each type of in Figure 7. The minimum value of MFP was shielding materials, calculated using the XCOM (11) observed in case of tungsten that proved better program as shown in Fig. 4.…”

“…The objective of this study is to calculate the gamma-ray attenuation properties of different shielding materials commonly used in nuclear medi-cine services. In this study, XCOM software (11)(12) with which gamma-ray photons are interacting and the result of that interaction (may be complete absorp-tion, elastic/coherent scattering or inelastic/incoherent scattering); there are many processes by which gamma-rays can interact with matter. Figure 1 gives a graphical display on the process in which gamma-rays are attenuated.…”

Photon-shielding properties of alkali- and acid-treated Philippine natural zeolite

“…6b). Because incident photons interact with individual electrons, a higher N eff means greater photon attenuation (Sahadath et al, 2015). In the energy range 8 < E < 60 keV, where photoelectric absorption is dominant, the N eff values of the raw and NaOH-modified zeolites are greater than those of PC and HCl-treated zeolite.…”