Article
Nuclear Science & Technology
Mohamed A. E. M. Ali, A. F. Tawfic, Mostafa A. Abdelgawad, Mohamed Mahdy, A. Omar
Summary: Concrete, a global structural material, has attracted widespread attention. As an alternative with superior elasticity, ECC has been used in structural applications. The research found that partially replacing traditional fine aggregate with nano-silica can improve the flowability and strength of ECC, and achieve significant effects in resisting gamma radiation and neutron penetration.
PROGRESS IN NUCLEAR ENERGY
(2022)
Article
Nuclear Science & Technology
M. G. El-Samrah, M. A. Abreu Zamora, D. R. Novog, S. E. Chidiac
Summary: This study investigated the radiation shielding properties of 8 concrete mixes. The results showed that concrete mixes containing barite and celestite were the most effective in attenuating gamma rays.
PROGRESS IN NUCLEAR ENERGY
(2022)
Review
Polymer Science
Muhd Afiq Hizami Abdullah, Raizal Saifulnaz Muhammad Rashid, Mugahed Amran, Farzad Hejazii, N. M. Azreen, Roman Fediuk, Yen Lei Voo, Nikolai Ivanovich Vatin, Mohd Idzat Idris
Summary: This article provides a comprehensive review on the subject of radiation shielding concrete (RSC), highlighting its potential and development as an advanced concrete product for nuclear energy applications. The composition, shielding characteristics, mechanical strength, and durability of RSC are discussed, along with avenues for future research. The article emphasizes the advantages and potential of RSC in shielding harmful radiation.
Article
Chemistry, Physical
Mohamed A. M. Uosif, Shams A. M. Issa, Antoaneta Ene, Ahmed M. A. Mostafa, Ali Atta, Emam F. El Agammy, Hesham M. H. Zakaly
Summary: Solar cells in superstrate arrangement require a protective cover glass with low weight, radiation resistance, optical clarity, and structural integrity. Damage to the cell covers caused by UV irradiation and energetic radiation is the main reason for the reduction in electricity generation by solar panels on spacecraft. Lead-free glasses made of xBi(2)O(3)-(40 - x)CaO-60P(2)O(5) were created and their gamma shielding properties were evaluated. The 60P(2)O(5)-30Bi(2)O(3)-10CaO glass combination showed promising performance as a lead-free radiation shielding option.
Article
Chemistry, Physical
Z. A. Alrowaili, Ali H. Alomari, S. Al-Qaisi, Norah Alwadai, Canel Eke, I. O. Olarinoye, Chalermpon Mutuwong, M. S. Al-Buriahi
Summary: In the past three decades, the use of ionizing radiation and shielding materials has become more diverse. The use of glasses as shields in radiation facilities is gaining attention due to their attractive characteristics. In this study, the shielding ability of different glasses was examined for gamma-ray, neutron, and charged particles. The results showed that the shielding parameters were dependent on radiation energy and glass composition. Analysis also indicated that Bi2O3 enhanced the photon shielding ability of the glasses.
RADIATION PHYSICS AND CHEMISTRY
(2023)
Article
Polymer Science
Wafa M. Al-Saleh, Mai R. H. Dahi, M. I. Sayyed, Haifa M. Almutairi, I. H. Saleh, Mohamed Elsafi
Summary: This study investigated the attenuation coefficients of polyester composites doped with waste iron filings (IFs) to improve the safety of radiation and nuclear technologies. The linear attenuation coefficients, transmission factors, and radiation shielding efficiency were compared experimentally and theoretically for samples with different IF concentrations and at various photon energies. The results showed that the samples with waste iron filings had higher linear attenuation coefficients and radiation shielding efficiency.
Article
Nuclear Science & Technology
Tetsuro Matsumoto, Akihiko Masuda, Eunji Lee, Toshiya Sanami, Takahiro Oyama, Tsuyoshi Kajimoto, Noriaki Nakao, Hiroshi Yashima, Seiji Nagaguro, Yoshitomo Uwamino, Seiya Manabe, Nobuhiro Shigyo, Hideki Harano, Robert Froeschl, Elpida Iliopoulou, Angelo Infantino, Stefan Roesler, Markus Brugger
Summary: In this study, neutron energy spectra were measured using a Bonner sphere spectrometer for different thicknesses of concrete and steel shielding. The obtained spectra cover the entire energy range from thermal energy to high energy.
JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY
(2023)
Article
Physics, Fluids & Plasmas
Colin G. Windsor, Jack O. Astbury, James J. Davidson, Charles J. R. McFadzean, J. Guy Morgan, Christopher L. Wilson, Samuel A. Humphry-Baker
Summary: The study modeled the favorable properties of tungsten borides for shielding the central high temperature superconductor core of a spherical tokamak fusion power plant. Results showed that W2B5 had the best performance in reducing neutron flux and gamma energy deposition. Compared to water-cooled shields, uncooled monolithic shields showed comparable performance and advantages in reactor safety.
Article
Construction & Building Technology
Totsawat Daungwilailuk, Chadet Yenchai, Wisarute Rungjaroenkiti, Phoonsak Pheinsusom, Chinnapat Panwisawas, Withit Pansuk
Summary: The present study aims to analyze the performance of concrete containing local minerals, barite and cut steel bars, in protecting against gamma-ray and fast-neutron radiation. The results show that using barite as aggregates can increase the radiation shielding capability, as well as the strength and density of specimens. Additionally, using cut steel bars as an additive material significantly enhances the attenuation coefficients of gamma-rays and neutrons.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Nuclear Science & Technology
Kadir Gunoglu, Iskender Akkurt
Summary: In this study, linear attenuation coefficients of concretes containing different rates of basalt-magnetite aggregates were measured for gamma energies emitted from radioactive sources. The results showed a linear relationship between the linear attenuation coefficients and the basalt-magnetite ratio. The experimental and theoretical results were found to be compatible, indicating the importance of basalt-magnetite as an aggregate in developing concrete with radiation shielding properties.
PROGRESS IN NUCLEAR ENERGY
(2021)
Article
Crystallography
Mohammed T. Alresheedi, Mohamed Elsafi
Summary: This study investigated the photon and neutron attenuation properties of polyepoxide composites doped with waste iron filings at different percentages. The experimental technique involved using an HPGe detector and gamma-ray sources to measure various gamma lines. The theoretical techniques for calculating shielding parameters were also applied. The results showed that the shielding performance of the composites improved with increasing iron filing rate.
Article
Optics
K. Mariselvam, Juncheng Liu
Summary: In this study, Tm3+ ions doped barium lithium calcium zinc fluoroborate (BLCZFB) glasses with high photoluminescence and shielding properties were prepared using melt quenching technique. The glasses exhibited intense blue and near-infrared emissions, making them suitable for solid state visible lasers and optoelectronic devices. Additionally, it was found that the 2TmBLCZFB glass showed the best attenuation characteristics and potential for shielding.
OPTICS AND LASER TECHNOLOGY
(2022)
Article
Chemistry, Physical
B. M. Chandrika, H. C. Manjunatha, L. Seenappa, K. N. Sridhar, M. R. Ambika, S. Manjunatha, R. Munirathnam, A. J. Clement Lourduraj
Summary: A novel material, Dibismuth Zinc Oxide Diborate (DZOD), was synthesized using Green synthesis approach for the first time. The DZOD nanoparticles showed comparable gamma shielding ability to lead and also proved to be efficient in absorbing neutrons and bremsstrahlung radiation. Therefore, DZOD is a highly efficient and environmentally friendly material for absorbing multiple radiations.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Construction & Building Technology
Lincheng Luo, Zhenfu Chen, Qiuwang Tao, Liping Xie, Dan Jin, Zhujing Li, Du Deng
Summary: The effects of high temperatures on the properties of radiation shielding concrete were investigated in this study. It was found that the relative velocity and damage index had a good correlation with the splitting tensile strength, indicating their potential for accurately assessing the failure of concrete under high temperatures. Additionally, severe spalling was observed in the barite concrete at 450 degrees Celsius, while the magnetite concrete exhibited better thermal stability and shielding performance.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Construction & Building Technology
Ali Oz, Baris Bayrak, Esra Kavaz, Gokhan Kaplan, Oguzhan Celebi, Haluk Gorkem Alcan, Abdulkadir Cueneyt Aydin
Summary: This study investigated the efficiency of geopolymers produced with short curing time and low curing temperature against gamma and neutron radiation. It was found that using quartz sand instead of river sand increased the compressive strength of the mixtures, and increasing the curing temperature and time improved the mechanical properties of the mixtures.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
