Study the Attenuation Coefficient of Granite to Use It as Shields against Gamma Ray

Najam, Laith Ahmed; Hashim, Abdalsattar Kareem; Ahmed, Hussein Abdulkareem; Hassan, Israa M.

doi:10.4236/detection.2016.42005

Cited by 19 publications

(4 citation statements)

References 9 publications

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“…Hence, concrete, being far less toxic, is the first choice in the construction of walls and flooring of radiation facilities. Although other materials such as ceramic (brick) [4] and granite [5] have been tested for their usefulness as shielding materials, their linear attenuation coefficient µ is 0.08 to 0.13 cm −1 for the 60 Co gamma ray source, which is even lower than those of the various heavyweight concrete mixtures (0.15-0.19) [6]. Hence, radioprotective shields for medical radiation facilities such as linear accelerators and for industrial gamma ray sterilization systems are constructed of concrete or concrete with an inserted iron plate.…”

Section: Introductionmentioning

confidence: 99%

Iron (III) Oxide-Based Ceramic Material for Radiation Shielding

et al. 2020

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We developed a new ceramic from raw material mainly composed of iron (III) oxide. The measured attenuation coefficient of the ceramic for high-energy gamma rays was in the range 0.268–0.355, which is approximately 40% of that of lead and twice that of concrete. The measured penetrating dose of the ceramic is half of that of concrete. Thus, the novel ceramic material named RASHIX may serve as a novel ceramic alternative for the wide variety of radiation shielding materials used in construction.

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Section: Introductionmentioning

confidence: 99%

Iron (III) Oxide-Based Ceramic Material for Radiation Shielding

et al. 2020

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“…The (µ/ρ) values are comparable for the three granites. Consequently, (µ) can provide clearer discrimination between granites, as a shielding material, than (µ/ρ), see also [9] and [14]. This can be correlated with the atomic numbers of the constituting atoms and the experimental set-up.…”

Section: The Linear and Mass Attenuation Coefficientsmentioning

confidence: 96%

“…[8] The linear and mass attenuation coefficients of gamma rays transmitted through granites of different countries were studied in the energy range 0.081-1.332 MeV. [9] It was concluded that the linear attenuation coefficients are appropriately correlated with the material density. Moreover, the mass attenuation coefficients are larger for materials of large atomic numbers.…”

Section: Introductionmentioning

confidence: 99%

Broad Beam and Gamma Spectrometric Parameters of Some Granites

El-Kateb¹,

El-Nasr²,

Bakry³

2019

RST

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Using a γ-ray spectrometer with 3"x3" NaI (Tl) detector the linear and mass attenuation coefficients (µ/ρ) and (µ b /ρ) from narrow and broad beam experimental arrangements have been measured and compared with the theoretical values for the granites Double Black, DB, from India, Rose Al-Howdy, RH, from Aswan, south Egypt and Bianco Halayeb, BK, from Halayeb, south Egypt. The photon energies lei in the range 0.081-1.332 MeV from the radioisotopes 133 Ba, 137 Cs and 60 Co. The build-up factor B, the effective atomic number Z eff , and the total atomic cross-section σ t for the granites as a function of photon energy were determined and discussed. It is found that the experimental results are consistent, within the experimental errors, with the theoretical values. The effective atomic number Z eff , the build-up factor B, and the total atomic cross-section σ t were calculated and discussed as a function of photon energy. The B factor is large at low gamma energy and not sensitive for discrimination between the granites. The maximum Z eff corresponds to minimum B factor at the photon energy 0.356 MeV. The broad beam geometry is more efficient than narrow beam geometry in characterizing the shielding properties of the studied granites.

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“…al. (2016) [13], a Monte Carlo simulation was employed to determine a set of linear attenuation coefficient, as well as mass attenuation coefficient, for various types of granite used in the construction, using a gamma irradiation source. fields.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the radiation shielding properties of ornamental rocks produced in Brazil: A Monte Carlo approach

Santos

Neves

et al. 2023

Braz. J. Rad. Sci.

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In this work, the Monte Carlo MCNPX (2.7.0) code was used to evaluate the radioprotective properties of ten ornamental granitic samples produced in Brazil. For each sample of granite, the mass attenuation coefficient (µ/ρ) and half-value layer (HVL) were evaluated using the photon energy emitted by the following radioisotopes: 241Am (59,5 keV), 133Ba (356 keV), 137Cs (662 keV), 60Co (1250 keV), and 22Na (1274 keV). The MCNPX results showed agreement with the values obtained by using the XCOM database, as well as with theoretical and experimental results, available on the literature. The computational model built in this work can be used by the scientific community interested in parameters involving new materials for gamma radiation shielding, which has been used in different areas of the nuclear sciences.

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Study the Attenuation Coefficient of Granite to Use It as Shields against Gamma Ray

Cited by 19 publications

References 9 publications

Iron (III) Oxide-Based Ceramic Material for Radiation Shielding

Iron (III) Oxide-Based Ceramic Material for Radiation Shielding

Broad Beam and Gamma Spectrometric Parameters of Some Granites

Evaluation of the radiation shielding properties of ornamental rocks produced in Brazil: A Monte Carlo approach

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