Determination of gamma ray shielding parameters of rocks and concrete

Obaid, Shamsan S.; Gaikwad, D.K.; Pawar, Pravina P.

doi:10.1016/j.radphyschem.2017.09.022

Cited by 226 publications

(34 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In other cases, however, glasses may not be the most effective material, which is why specific details of the environment of the radiation source must be known [ 13 , 14 , 15 ]. Other commonly used radiation shielding materials that are currently being researched include alloys, composites, and concrete [ 16 , 17 , 18 ].…”

Section: Introductionmentioning

confidence: 99%

The Potentials of Egyptian and Indian Granites for Protection of Ionizing Radiation

et al. 2021

View full text Add to dashboard Cite

This paper aims to study the radiation shielding characteristics and buildup factor of some types of granite in Egypt. The mass attenuation coefficient (MAC) for three types of granite (gandola, white halayeb, and red aswani) was experimentally determined, and the experimental results were validated by XCOM software. The relative deviation between the two methods does not exceed 3% in all discussed granite samples, which means that MAC calculated through the experimental and XCOM are in suitable agreement. The effective atomic number (Zeff) varies from 13.64 to 10.69, 13.68 to 10.59, and 13.45 and 10.66 for gandola, white halayeb, and red aswani, respectively. As well as the equivalent atomic number (Zeq) was calculated in a wide range of energy to deduce the exposure (EBF) and energy absorption (EABF) buildup factors for the studied granite materials. The linear attenuation coefficient (LAC), half-value layer (HVL), mean free path (MFP) were calculated at each investigated energy and showed that the most effective shielding ability at high energy was red aswani, while at low energy, the shielding ability was nearly constant for studied granites. The present study forms the first endeavor to obtain the radiation shielding properties of the studied materials to be used in practical applications.

show abstract

Section: Introductionmentioning

confidence: 99%

The Potentials of Egyptian and Indian Granites for Protection of Ionizing Radiation

et al. 2021

View full text Add to dashboard Cite

show abstract

“…In the past few years, researchers have conducted various studies to find the best materials for reducing exposure to radiation and thus protecting people working in the field of radiation, as well as people exposed to radiation due to side effects [1][2][3][4][5][6][7][8][9][10][11]. Glass has features that make it distinct from other materials, such as visible light being able to pass through it, the ease of preparing glass in different and simple ways, and the possibility of changing the density of the glass during the preparation of glass samples.…”

Section: Introductionmentioning

confidence: 99%

Gamma Ray Shielding Properties of Yb3+-Doped Calcium Borotellurite Glasses

Almuqrin

Sayyed

2021

Applied Sciences

View full text Add to dashboard Cite

This research work aims to investigate the radiation shielding ability of a Yb3+-doped calcium borotellurite glass system. The system has the basic composition of CaF2–CaO–B2O3–TeO2–Yb2O3 but is denoted as TeBYbn for simplicity. The effect of increasing the TeO2 content in the glasses from 10 to 54 mol% was investigated, with five different chosen compositions and densities. The Phy-X/PSD program was used to investigate the mass attenuation coefficient (µ/ρ) of the samples. The mass attenuation coefficients were theoretically determined by using an online software for the calculation of shielding parameters. Other parameters were then calculated and analyzed, such as the linear attenuation coefficient (µ), transmission factor (TF), radiation protection efficiency (RPE), effective atomic number (Zeff), and mean free path (MFP). TeBYb5, the glass with the greatest TeO2 content, was shown to have the greatest µ/ρ; however, at greater energies, the differences between the values are practically negligible. µ was shown to increase with density, such as from 0.386 cm−1 to 0.687 cm−1 for TeBYb1 and TeBYb5 at 0.284 MeV, respectively. The least TF was found for samples with a thickness of 1.5 cm, proving an inverse correlation between the thickness of the sample and the TF. The HVL and TVL of the glasses decreased as the density of the samples increased, which means that TeBYb1 is the least effective out of the investigated glasses. The five samples proved to have a lower MFP than some other shielding glasses, demonstrating their capabilities as radiation shields. Based on the calculated parameters, TeBYb5 indicated the greatest photon attenuation ability.

show abstract

“…Lead has been used as radiation shielding material in various applications including diagnostic imaging, radiation therapy, nuclear and industrial shielding. Lead is one of the radiation shielding materials that commonly used for X-rays and gamma radiation because it has high density, high atomic number, and high linear and mass attenuation coefficients [1][2][3][4]. Lead can be hazardous when taken into the body by swallowing or breathing in lead or materials contaminated with lead.…”

Section: Introductionmentioning

confidence: 99%

Tungsten-based material as promising new lead-free gamma radiation shielding material in nuclear medicine

et al. 2020

View full text Add to dashboard Cite

The main objective of this study was to evaluate the efficacy of tungsten carbide as new lead-free radiation shielding material in nuclear medicine by evaluating the attenuation properties. Materials and methods: The elemental composition of tungsten carbide was analysed using Field-Emission Scanning Electron Microscopy (FESEM) with energy dispersive X-ray (EDX). The purity of tungsten carbide was 99.9%, APS: 40-50 µm. Three discs of tungsten carbide was fabricated with thickness of 0.1 cm, 0.5 cm and 1.0 cm. Three lead discs with similar thickness were used to compare the attenuation properties with tungsten carbide discs. Energy calibration of gamma spectroscopy was performed by using 123 I, 133 Ba, 152 Eu, and 137 Cs. Gamma radiation from these sources were irradiated on both materials at energies ranging from 0.160 MeV to 0.779 MeV. The experimental attenuation coefficients of lead and tungsten carbide were compared with theoretical attenuation coefficients of both materials from NIST database. The half value layer and mean free path of both materials were also evaluated in this study. Results: This study found that the peaks obtained from gamma spectroscopy have linear relationship with all energies used in this study. The relative differences between the measured and theoretical mass attenuation coefficients are within 0.19-5.11% for both materials. Tungsten carbide has low half value layer and mean free path compared to lead for all thickness at different energies. Conclusion:This study shows that tungsten carbide has high potential to replace lead as new lead-free radiation shielding material in nuclear medicine.

show abstract

Determination of gamma ray shielding parameters of rocks and concrete

Cited by 226 publications

References 24 publications

The Potentials of Egyptian and Indian Granites for Protection of Ionizing Radiation

The Potentials of Egyptian and Indian Granites for Protection of Ionizing Radiation

Gamma Ray Shielding Properties of Yb3+-Doped Calcium Borotellurite Glasses

Tungsten-based material as promising new lead-free gamma radiation shielding material in nuclear medicine

Contact Info

Product

Resources

About