Results 1 to 10 of about 418,007 (311)

A rapid and direct method for half value layer calculations for nuclear safety studies using MCNPX Monte Carlo code [PDF]

Nuclear Engineering and Technology, 2022
Half Value Layer calculations theoretically need prior specification of linear attenuation calculations, since the HVL value is derived by dividing ln(2) by the linear attenuation coefficient.
H.O. Tekin, Ghada ALMisned, Shams A.M. Issa, Hesham M.H. Zakaly   +3 more
doaj   +4 more sources

Investigation of gamma radiation shielding features for modified structural materials for nuclear energy and nuclear medicine [PDF]

Nuclear Technology and Radiation Protection, 2023
In this paper, shielding characteristics of three concrete samples with different B4C,Fe3O4,and BaSO4 contents were examined by determining their theoretical and experimental mass attenuation coefficients at photon energies of 15 MeV.
Zaripova Yuliya, Dyachkov Vyacheslav, Gladkikh Tatyana, Bigeldiyeva Mirgul, Diab Nasr Ahmed Nasr   +4 more
doaj   +1 more source

Validation of a Proposed Equation for Determining the Half-Thickness Value of Gamma and X-Ray Radiation

Süleyman Demirel Üniversitesi Fen-Edebiyat Fakültesi Fen Dergisi, 2023
Half-value layer (HVL) is energy dependent on the photon, much as the attenuation coefficient. Increasing the penetrating energy of a photon stream causes an increase in a substance's HVL.
Hasan Bircan, Kaan Manisa, Meryem Cansu Şahin   +2 more
doaj   +1 more source

Gamma Radiation Shielding Properties of Slag and Fly Ash-based Geopolymers

Atom Indonesia, 2021
Industrial waste-based geopolymer cement is a greener alternative to Ordinary Portland Cement (OPC) for radiation shielding with comparable mechanical properties without the production of CO2 during synthesis.
M. W. Hasan, S. Sugiharto, S. Astutiningsih   +2 more
doaj   +1 more source

Lead-borate glass system doped with Sm3+ ions for the X-ray shielding applications

Results in Physics, 2022
The impact of varying Sm2O3 content on radiation shielding properties of 15PbF2: (65-x) B2O3: 20K2O:xSm2O3 (where 0 ≤ x ≤ 1.5 mol %) glass samples, was investigated by studying their physical, radio-luminescence and X-ray-shielding characteristics.
S. Mukamil, Ikram Ullah, C. Sarumaha, S.M. Wabaidur, M.A. Islam, S.A. Khattak, S. Kothan, M. Shoaib, I. Khan, I. Ullah, J. Kaewkhao, G. Rooh   +11 more
doaj   +1 more source

Radiation shielding properties of weathered soils: Influence of the chemical composition and granulometric fractions

Nuclear Engineering and Technology, 2022
Soils are porous materials with high shielding capability to attenuate gamma and X-rays. The disposal of radionuclides throughout the soil profile can expose the living organisms to ionizing radiation.
Luiz F. Pires
doaj   +1 more source

Constancy of the Half Value Layer of Cobalt-doped borate glasses with Lanthanum Oxide Additive at Extremely High Radiation Energy

Journal of Applied Sciences and Environmental Management, 2023
Radiation shielding is essential for protecting workers, patients, and the environment from harmful effects of radiation. To achieve effective and non-toxic shielding, scientists are interested in developing lead-free materials with low thickness that ...
M. N. Isa, M. Alhassan, H. A. Ibrahim
doaj   +1 more source

Comparação entre métodos de medição da camada semi-redutora em radiologia

Brazilian Journal of Radiation Sciences, 2021
The Half Value Layer (HVL) is a parameter used in Quality Control (QC), to evaluate the X-ray beam quality. The HVL can be measured through the X-ray primary beam attenuation measurement using knew thickness slabs of 99% purity aluminum (M1) or by ...
Denyel Jefferson Prado Faria, Rafael Figueiredo Pohlmann Simões, Fernando Mecca Augusto, Leonardo Vieira Travassos, Beneth Costa Gomes   +4 more
doaj   +1 more source

Study of gamma radiation shielding efficiency by 0.5TeO₂-(0.5-x)Bi₂O₃-xWO₃ glasses

Eurasian Journal of Physics and Functional Materials, 2021
This article is devoted to the study of determination of gamma radiation shielding efficiency by new radiation-resistant glasses of the 0.5TeO2-(0.5-x)Bi2O3-xWO3 type.
A. .. Temir, K. Sh. Zhumadilov, A. .. Kozlovskiy, A. .. Smagulova, D. I. Shlimas, A. V. Trukhanov   +5 more
doaj   +1 more source

Theoretical Investigation of Fast Neutron and Gamma Radiation Properties of Polycarbonate-Bismuth Oxide Composites Using Geant4

Nanomaterials, 2022
The gamma mass (µm) and linear (µ) attenuation coefficients of polycarbonate-bismuth oxide composites (PC-Bi2O3) with different bismuth oxide weight factors were investigated theoretically using EpiXS and a Monte Carlo simulation-based toolkit and Geant4
Hanan Akhdar
doaj   +1 more source