Results 21 to 30 of about 7,317,302 (267)

Gamma, neutron, and heavy charged ion shielding properties of Er3+-doped and Sm3+-doped zinc borate glasses

Open Chemistry, 2022
This study aimed to investigate the nuclear radiation shielding properties of erbium (Er)-reinforced and samarium (Sm)-reinforced borate glasses. In the 0.015–15 MeV photon energy range, attenuation coefficients, as well as half-value layer tenth-value ...
Tekin Huseyin Ozan, ALMisned Ghada, Zakaly Hesham M. H., Zamil Abdallah, Khoucheich Dalia, Bilal Ghaida, Al-Sammarraie Lubna, Issa Shams A. M., Al-Buriahi Mohammed Sultan, Ene Antoaneta   +9 more
doaj   +1 more source

Preparation and characterization of bismuth-filled high-density polyethylene composites for gamma-ray shielding

Radiation Protection and Environment, 2019
An attempt has been made to prepare the nonlead-based gamma shielding materials by adding different weight percentages (0%, 10%, 20%, and 40%) of bismuth in high-density polyethylene (HDPE) matrix.
M Sheela, Vinayak Anand Kamat, K U Kiran, K M Eshwarappa   +3 more
doaj   +1 more source

Development of high-performance heavy density concrete using different aggregates for gamma-ray shielding

HBRC Journal, 2015
The performance requirements of the concrete of containment structures are mainly radiological protection, structural integrity, durability, etc. For this purpose, high-performance heavy density concrete can be used. After extensive trials and errors, 15
Ahmed S. Ouda
doaj   +1 more source

A Systematical Characterization of TeO₂–V₂O₅ Glass System Using Boron (III) Oxide and Neodymium (III) Oxide Substitution: Resistance Behaviors against Ionizing Radiation

Applied Sciences, 2021
This study aimed to perform an extensive characterization of a 74.75TeO2–0.25V2O5–(25 − x)B2O3-xNd2O3 glass system with (x = 0, 0.5, 1.0, and 1.5 mol%) for radiation shielding properties. Linear and mass attenuation coefficients were determined using Phy-
H. O. Tekin, Shams A. M. Issa, G. Kilic, Hesham M. H. Zakaly, N. Tarhan, H. A. A. Sidek, K. A. Matori, M. H. M. Zaid   +7 more
doaj   +1 more source

Investigation on radiation shielding parameters of cerrobend alloys

Nuclear Engineering and Technology, 2017
In this study, to determine the most effective alloy for shielding against gamma-rays, the gamma-ray shielding parameters of six types of cerrobend alloys have been investigated.
Borhan Tellili, Youssef Elmahroug, Chedly Souga   +2 more
doaj   +1 more source

Calculation of gamma-ray attenuation parameters for locally developed shielding material: Polyboron

Journal of Radiation Research and Applied Sciences, 2016
In the present study, the mass attenuation coefficient (μm) has been calculated analytically for a locally developed shielding material, polyboron, and compared with the values obtained from the WinXCom code, a Windows version of the XCOM database at the
Ripan Biswas, Hossain Sahadath, Abdus Sattar Mollah, Md. Fazlul Huq   +3 more
doaj   +1 more source

Effect of high temperature on the radiation shielding properties of cementitious composites containing nano- Bi2O3

Journal of Materials Research and Technology, 2020
In this study, the effect of various temperatures at 25, 200, 400, and 600 °C, on the mechanical and gamma ray shielding properties of heavy-weight concrete (HC) with various content of Nano Bismuth Oxide (NB) at levels of 0, 2, 4 and 6% were determined.
Iman M. Nikbin, Ahmad Rafiee, Soudabeh Dezhampanah, Sadegh Mehdipour, Reza Mohebbi, Hamid Habibi Moghadam, Ali Sadrmomtazi   +6 more
doaj   +1 more source

Epoxy-reinforced heavy metal oxides for gamma ray shielding purposes

Open Chemistry, 2023
Epoxy resins with varying amounts of MoO3 were theoretically investigated for their radiation shielding ability at low energies (between 0.0395 and 0.344 MeV). The quantity of MoO3 varied from 0 to 30%, and relevant shielding parameters were obtained and
Almuqrin Aljawhara H., Aloraini Dalal Abdullah, Abualsayed Mohammad Ibrahim   +2 more
doaj   +1 more source

The onset of instability in unsteady boundary-layer separation [PDF]

, 1996
The process of unsteady two-dimensional boundary-layer separation at high Reynolds number is considered. Solutions of the unsteady non-interactive boundary-layer equations are known to develop a generic separation singularity in regions where the ...
K. W. Cassel, J. D. A. Walker, Smith, FT, Cassel, KW, Walker, JDA, F. T. Smith   +5 more
core   +1 more source

Gamma-ray attenuation characteristics of polypropylene filled with nano-sized and bulk Bi2O3 and CuO [PDF]

Nuclear Technology and Radiation Protection
Polypropylene was produced using compression molding and combined with bulk Bi2O3/CuO, and Bi2O3/CuO nanocomposites at various filler weight fractions (0%, 5%, 10%, 15%, and 20%).
Gouda Mona M., Shebly Mona, Habanjar Khulud, Obeid Amro, Awad Ramadan, Badawi Mohamed S.   +5 more
doaj   +1 more source