Results 31 to 40 of about 52,262 (263)

Gamma ray attenuation behaviors and mechanism of boron rich slag/ epoxy resin shielding composites

open access: yesNuclear Engineering and Technology, 2023
Excellent thermal neutron absorption performance of boron expands the potential use of boron rich slag to prepare epoxy resin matrix nuclear shielding composites. However, shielding attenuation behaviors and mechanism of the composites against gamma rays
Mengge Dong   +3 more
doaj   +1 more source

Considerations for practical dose equivalent assessment of space radiation and exposure risk reduction in deep space

open access: yesScientific Reports, 2022
Shielding from space radiation, especially galactic cosmic rays (GCRs), is a significant safety challenge for future human activities in deep space. In this study, the shielding performances of potential materials [aluminum (Al), polyethylene (PE), and ...
Masayuki Naito, Satoshi Kodaira
doaj   +1 more source

Improving the X-ray Shielding Performance of Tungsten Thin-Film Plates Manufactured Using the Rolling Technology

open access: yesApplied Sciences, 2021
X-ray shields used for medical purposes are manufactured using lead, which is inexpensive and easy to manufacture. However, as lead can be a major factor contributing toward environmental contamination, such as lead poisoning, a radiation-shielding plate
Seon-Chil Kim
doaj   +1 more source

A comprehensive study of the energy absorption and exposure buildup factors of different bricks for gamma-rays shielding

open access: yesResults in Physics, 2017
The present investigation has been performed on different bricks for the purpose of gamma-ray shielding. The values of the mass attenuation coefficient (µ/ρ), energy absorption buildup factor (EABF) and exposure buildup factor (EBF) were determined and ...
M.I. Sayyed   +5 more
doaj   +1 more source

Aramid nanofiber-reinforced multilayer electromagnetic-interference (EMI) shielding composites with high interfacial durability

open access: yesMaterials & Design, 2022
Structural composites for electric vehicles should have lightweight, mechanically strong, efficient electromagnetic shielding. Although thermoplastic composite material plays a structural role and aluminum thin film (Al foil) plays the role of ...
Dong-Jun Kwon   +5 more
doaj   +1 more source

Modified Debye‐Huckel Electron Shielding and Penetration Factor [PDF]

open access: yesThe Astrophysical Journal, 2007
Screened potential, modified by non standard electron cloud distributions responsible for the shielding effect on fusion of reacting nuclei in astrophysical plasmas, is derived. The case of clouds with depleted tails in space coordinates is discussed.
P. Quarati, A. M. Scarfone
openaire   +4 more sources

Factors affecting the computation of the 13C shielding in disaccharides [PDF]

open access: yesJournal of Computational Chemistry, 2014
Knowledge of the three‐dimensional structures of glycans and glycoproteins is useful for a full understanding of molecular processes in which glycans are involved, such as antigen‐recognition and virus infection, to name a few. Among the ubiquitous nuclei in glycan molecules, the 13C nucleus is an attractive candidate for computation of theoretical ...
Pablo G. Garay   +3 more
openaire   +3 more sources

Radiation shielding for helical tomotherapy vault design

open access: yesJournal of Medical Physics, 2019
Purpose: The purpose of the present study is to carry out radiation shielding calculations to find out adequate thicknesses of protective barriers such as walls and ceiling based on minimum space required to house helical tomotherapy unit.
Amanjot Kaur, P N Pawaskar, G Sahani
doaj   +1 more source

Investigation of gamma-ray shielding effectiveness of natural marble used for external wall cladding of buildings in Riyadh, Saudi Arabia

open access: yesResults in Physics, 2017
Gamma-ray shielding effectiveness of different types of natural marble tiles commonly used for cladding the exterior walls of residential and non-residential buildings in Riyadh, Saudi Arabia has been investigated in the energy range 59.5–1332.5 keV.
Ibrahim F. Al-Hamarneh
doaj   +1 more source

Hazardous radiation protective glasses for medical and research laboratories

open access: yesHeliyon, 2023
In the current study, the bismuth oxide (Bi2O3) content was inter-substituted with gadolinium oxide (Gd2O3) in sodium borate glass. Glass sample density and molar volume values show a reverse trend. The optical transparent radiation shielding glasses are
R. Ruamnikhom   +6 more
doaj   +1 more source

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