scholarly journals A Novel Radiation Shielding Material for Gamma-Ray: The Development of Lutetium Lithium Borate Glasses

2018 ◽  
Vol 766 ◽  
pp. 246-251 ◽  
Author(s):  
Punsak Glumglomchit ◽  
Juniastel Rajagukguk ◽  
Jakrapong Kaewkhao ◽  
Keerati Kirdsiri
Keyword(s):  
Gamma Ray ◽  
Theoretical Data ◽  
Borate Glasses ◽  
Lithium Borate ◽  
Attenuation Coefficients ◽  
Effective Electron ◽  
Mass Attenuation Coefficients ◽  
Shielding Properties ◽  
Shielding Material ◽  
Mass Attenuation

This work, gamma-ray shielding properties of the lutetium lithium borate glasses in the system Lu2O3 - Li2O - B2O3 have been evaluated as a shielding material at 662 keV photon energy. While the experimental mass attenuation coefficients (μm) have been determined by using the narrow beam transmission method, the theoretical data were calculated using WinXCom program. The good agreements between experimental and theoretical values have been obtained. Both experimental and computational mass attenuation coefficients data were used to obtain the effective atomic number (Zeff), and the effective electron density (Nel). Based on the obtained data, the Lu-based glasses have good shielding properties, the improved glasses could be used as gamma-rays shielding material.

scholarly journals Calculation of Gamma-ray Attenuation Parameters for Locally Developed Ilmenite-magnetite (I-M) Concrete

2016 ◽  
Vol 40 (1) ◽  
pp. 11-21 ◽  
Author(s):  
Md Hossain Sahadath ◽  
Ripan Biswas ◽  
Md Fazlul Huq ◽  
Abdus Sattar Mollah
Keyword(s):  
Computer Program ◽  
Gamma Ray ◽  
Attenuation Coefficients ◽  
Wide Range ◽  
Gamma Ray Attenuation ◽  
Mass Attenuation Coefficients ◽  
Shielding Properties ◽  
Academy Of Sciences ◽  
Shielding Material ◽  
Good Agreement

The mass attenuation coefficients (?/?) of locally developed ilmenite-magnetite (I-M) concrete over a wide range of photon energy were calculated analytically using Matlab and compared with the values obtained from widely used XCom computer program. A good agreement between the calculated and XCom generated value was found. The linear attenuation coefficients and relaxation lengths were calculated for the same energy range. The transmission curves were drawn for some common gamma-ray energies and half value layer and tenth value layer were calculated. The results of this study will provide some useful information about the shielding material data base for practical shielding calculation. The results will also illustrate the effectiveness of I-M concrete so far as its shielding properties are concerned.Journal of Bangladesh Academy of Sciences, Vol. 40, No. 1, 11-21, 2016

Determination of effective atomic numbers and electron densities for some synthesized triazoles from the measured total mass attenuation coefficients at different energies

2019 ◽  
Vol 97 (1) ◽  
pp. 86-92 ◽  
Author(s):  
F. Akman ◽  
I.H. Geçibesler ◽  
I. Demirkol ◽  
A. Çetin
Keyword(s):  
Total Mass ◽  
Effective Atomic Number ◽  
Electron Densities ◽  
Atom Number ◽  
Attenuation Coefficients ◽  
Effective Electron ◽  
Mass Attenuation Coefficients ◽  
Effective Atomic Numbers ◽  
Theoretical Results ◽  
Mass Attenuation

The effective atomic numbers and electron densities of some synthesized triazoles were determined using the experimental values of total mass attenuation coefficients at 13.93, 17.77, 26.34, and 59.54 keV photon energies. The measurements were performed in a transmission geometry that consists of a Si(Li) detector, an 241Am point source and a target. The measured results were compared with two different theoretical results. The measured results are generally consistent with the theoretical results. It is observed that the measured parameters depend on the photon energy, weighted contributions of the individual atoms within the triazoles, atom number in the triazoles, and chemical composition of triazoles. Also, the effective electron density increases linearly with increasing effective atomic number.

Z dependence of photon interactions in wood materials

2013 ◽  
Vol 91 (3) ◽  
pp. 221-225 ◽  
Author(s):  
B. Saritha ◽  
A.S. Nageswara Rao
Keyword(s):  
Gamma Ray ◽  
Mass Attenuation Coefficient ◽  
Narrow Beam ◽  
Attenuation Coefficients ◽  
Beam Geometry ◽  
Mass Attenuation Coefficients ◽  
Experimental Values ◽  
Photon Interactions ◽  
Good Agreement ◽  
Mass Attenuation

Transmission experiments were performed on wood in a narrow-beam geometry using a collimated gamma ray beam at 59.5 and 661.6 keV. The mass attenuation coefficients were determined from experiment, and effective atomic numbers were computed from theoretical equations. It was found that the mass attenuation coefficient decreases with increasing photon energy. Experimental values were compared with those from the XCOM database and with analytical results, and good agreement was achieved. This type of study gives some insight about photon interactions with wood materials.

scholarly journals Investigation of the Mass Attenuation Coefficients, Effective Atomic Numbers and Electron Densities for Compounds of Painkiller

2021 ◽  
Vol 2 (1) ◽  
pp. 034-037
Author(s):  
Tekerek Saniye
Keyword(s):  
Gamma Ray ◽  
Effective Atomic Number ◽  
Radiation Shielding ◽  
Radiation Physics ◽  
Attenuation Coefficients ◽  
Effective Electron ◽  
Technological Advances ◽  
Mass Attenuation Coefficients ◽  
Effective Atomic Numbers ◽  
Gamma Radiations

In this study the effects of gamma radiations with compounds are an important subject in the field of medicine, radiation shielding and radiation physics. With technological advances the using of radiation has increased in the medicine in the last century. The mass absorpsion coefficient (µ/ρ) is the fundamental a quantity characterizing gamma ray and is of major importance in radiation shielding. In this study, the mass absorption coefficient of painkillers named Ketoprofen, Flurbiprofen, Etodolac, Ibuprofen, Meloxicam, Diclofenac and Aspirin were calculated at energy range from 4.65 keV to 59.543 keV using the WinXCom data programme. In addition total atomic (σta), moleculer (σtm), electronic cross-section (σte), effective atomic number (Zeff), effective electron density (Neff) were calculated.

scholarly journals Measuring Mass Attenuation Coefficient and Elemental Composition for Egbeda Soil Series of Southwestern Nigeria

2021 ◽  
Vol 9 (04) ◽  
pp. 01-10
Author(s):  
Fajemiroye, Joseph Ademola
Keyword(s):  
Elemental Composition ◽  
Attenuation Coefficient ◽  
Production Efficiency ◽  
Gamma Ray ◽  
Soil Depth ◽  
Mass Attenuation Coefficient ◽  
Soil Series ◽  
Attenuation Coefficients ◽  
Mass Attenuation Coefficients ◽  
Mass Attenuation

Information from workers on the profitability of cassava on Iwo and Egbeda soil series in Oyo state, Nigeria have shown the Iwo soil series to be more profitable given the same scale of cassava cultivation. Therefore the need arises to improve on the soil properties of Egbeda soil series which will possibly improve the production efficiency for this category of farmers. In this work, an experimental procedure using gamma attenuation technique to determine the mass attenuation coefficient at different gamma ray energies of 59.5, 661.7, 1173.2 and 1332.5 keV, and at depths of 0 – 15, 15 – 30, 30 – 45, 45 – 60, 60 – 75 and 75 – 90 cm into the Egbeda soil series profile have been studied. Likewise X-ray fluorescence, XRF, method was used to obtain the elemental composition and concentrations at these depths while the XCOM software was applied to obtain the photon mass attenuation coefficients at the different gamma ray energies for the depths. Mass attenuation coefficients,  obtained experimentally and that computed theoretically using XCOM varied exponentially with photon energy. The correlation coefficient between the experimentally-obtained and XCOM-obtained μs for the energies considered ranged from 0.89 – 0.96. The variation of  with soil depth show that the top soil (0 – 15cm depths) is least attenuating with gamma ray penetrability varying down the profile. Information on the mass attenuation coefficients, elemental composition, and concentrations at varying depths into the soil profile will go a long way in contributing to efforts at improving the soil condition of the Egbeda soil series.  

Radiation shielding properties of mortars containing heavyweight particles

Kerntechnik ◽  
2021 ◽  
Vol 86 (1) ◽  
pp. 64-69
Author(s):  
N. U. Kockal ◽  
A. Cesur ◽  
S. F. Ozmen
Keyword(s):  
Mass Attenuation Coefficient ◽  
Radiation Shielding ◽  
Point Sources ◽  
Calcareous Sand ◽  
Heavy Particles ◽  
Attenuation Coefficients ◽  
High Purity Germanium ◽  
Mass Attenuation Coefficients ◽  
Shielding Properties ◽  
Mass Attenuation

Abstract In this study the radiation shielding properties of mortar samples were investigated. The samples were created by replacing heavyweight particles of iron, steel and chromium waste by calcareous sand in different volume percentages. Additionally, the effects of the physical properties of particles and samples on shielding properties is also discussed. In the scope of this work, the radiation shielding properties of mortar samples were measured by determining the values of mass attenuation coefficients by means of an experimental setup consisting of 133Ba, 137Cs and 60Co standard point sources and high purity germanium (HPGe) detector. It’s concluded that the highest mass attenuation coefficient values among the heavy particles were achieved by chromium particles. However, all the high-density particles used in the study improved the radiation shielding properties of the mortars considerably compared to ordinary mortars.

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