scholarly journals Mass Attenuation Coefficient Measurements of Some Nanocarbon Allotropes: A New Hope for Better Low Cost Less-Cumbersome Radiation Shielding Over A Wide Energy Range

2018 ◽  
Vol 5 (2) ◽  
pp. 311-317
Author(s):  
E. Rajasekhar ◽  
◽  
K.L. Narasimham ◽  
Aditya D. Kurdekar ◽  
L.A. Avinash Chunduri ◽  
...  
Keyword(s):  
Energy Range ◽  
Attenuation Coefficient ◽  
Low Cost ◽  
Mass Attenuation Coefficient ◽  
Radiation Shielding ◽  
Wide Energy Range ◽  
Wide Energy ◽  
Mass Attenuation

scholarly journals Estimation of the X/γ- ray shielding properties of different glass system using Monte Carlo Simulation

2021 ◽  
Vol 12 (2) ◽  
pp. 1117-1122
Author(s):  
Ayano Shanko, MD, Et. al.
Keyword(s):  
Monte Carlo Simulation ◽  
Monte Carlo ◽  
Attenuation Coefficient ◽  
Mass Attenuation Coefficient ◽  
Radiation Shielding ◽  
Glass System ◽  
Effective Electron ◽  
X Ray ◽  
Shielding Properties ◽  
Mass Attenuation

The aim of the research is to estimate the X-ray shielding properties of different glass systems using Monte Carlo Simulation. X-ray glass is also known as radiation shielding glass. Glass provides protection against the absorption of energy radiation. The shielding layer is formed by a high concentration of lead and barium. The mass attenuation coefficient, the effective atomic number and the effective electron density are used to determine the position of gamma-ray photons in matter. Shield characterization in terms of mass attenuation coefficient (μm), transmission fraction (T), effective atomic numbers (Zeff), half-value layer (HVL) and exposure build-up. factor (EBF) of a glass system is estimated by the Monte Carlo Simulation. The random sampling and statistical analysis are computed using the monte carlo simulation. Various external factors are considered as the input parameters. The different composition of the glass will be examined using the Monte Carlo simulation and the shielding capability would be determined for the various samples.

Mass attenuation coefficient of saccharides for X-rays in the energy range from 8keV to 32keV

2009 ◽  
Vol 44 (1) ◽  
pp. 63-67 ◽  
Author(s):  
B.R. Kerur ◽  
V.T. Manjula ◽  
M.T. Lagare ◽  
S. Anil Kumar
Keyword(s):  
Energy Range ◽  
Attenuation Coefficient ◽  
Mass Attenuation Coefficient ◽  
X Rays ◽  
Mass Attenuation

scholarly journals Photon Shielding Characterization of SiO2-PbO-CdO-TiO2 Glasses for Radiotheraphy Shielding Application

2021 ◽  
pp. 32-38
Author(s):  
Idris M. Mustapha ◽  
Atimga B. James ◽  
Sulayman M. Bello
Keyword(s):  
Attenuation Coefficient ◽  
Energy Region ◽  
Effective Atomic Number ◽  
Mean Free Path ◽  
Mass Attenuation Coefficient ◽  
Photoelectric Effect ◽  
High Energy ◽  
Radiation Shielding ◽  
Sudden Increase ◽  
Mass Attenuation

In this study, photon attenuation parameters of (30-x) SiO2–15PbO–10CdO-xTiO2, with x = 0, 2, 4, 6, 8 and 10% mol, were determined and their application as shielding material were discussed. The WinXCOM software was used to determine the mass attenuation coefficient of the studied glasses for the energy range (0.015-15MeV). The mass attenuation coefficient of the glass samples first decline up to 0.09 MeV and slightly increase abruptly and then declined uniformly for all the glasses to approximately zero after about 10 MeV.   The effective atomic number (Zeff) was also calculated for the glass samples and were observe to raise from 0.015 to 0.02 MeV and then decreased between 0.02-5 MeV. On account of the dominance of the photoelectric effect in the low energy region, there was a sudden increase in Zeff at about 0.08 MeV close to the absorption edge of the Pb (0.088 MeV). The rapid increment was observed at 0.1–1.5 MeV by transcending typical Compton scattering interaction at intermediate energies for Zeff'’s and began to decrease in the same form again. The lower Zeff   values were found in low and high energy region for all SPCT glasses. The calculated mean free path, half value layer and tenth value layer values were observe to decline as the TiO2 doping of the glasses increased which accounts for the  three photon interaction mechanisms effectiveness in the variation of MFP and HVL values with energy. It can be concluded that SPCT glasses may be considered an alternative material for radiation shielding practices.

Gamma radiation shielding properties of glasses within the TeO2-TiO2-ZnO system

2019 ◽  
Vol 107 (6) ◽  
pp. 517-522 ◽  
Author(s):  
M. Almatari
Keyword(s):  
Gamma Radiation ◽  
Attenuation Coefficient ◽  
Atomic Number ◽  
Effective Atomic Number ◽  
Mean Free Path ◽  
Mass Attenuation Coefficient ◽  
Radiation Shielding ◽  
Glass System ◽  
Shielding Properties ◽  
Mass Attenuation

Abstract Radiations are widely used in hospitals and health services in radiotherapy and molecular imaging using x-ray and gamma radiation which considered as the most penetrating radiations and very difficult to shield. In this study, the radiation shielding properties of different zinc oxide (ZnO) concentrations of the (95-x)TeO2-5TiO2-xZnO (x=5, 10, 15, 20, 25, 30 and 40 mol%) glass system was investigated to be introduced as a new transparency effective shielding material. In order to study shielding properties, mass attenuation coefficients in the energy range of 0.015–15 MeV photon energies for the current glass system were calculated using ParShield software. Moreover, half value layer, mean free path and effective atomic number were evaluated using the obtained attenuation coefficient. The results indicated that if ZnO was added to the current glass system the mass attenuation coefficient will be decreased as well as effective atomic number values. The highest mass attenuation coefficient at all energies was found to be in TT5Z5 glass sample as well as the effective atomic number value.

Gamma-Rays Absorption Studies of PbO-SiO2 Glass System

2010 ◽  
Vol 93-94 ◽  
pp. 71-74
Author(s):  
N. Chanthima ◽  
Jakrapong Kaewkhao ◽  
Weerapong Chewpraditkul ◽  
Pichet Limsuwan
Keyword(s):  
Attenuation Coefficient ◽  
Effective Atomic Number ◽  
Mass Attenuation Coefficient ◽  
Radiation Shielding ◽  
Glass System ◽  
Interaction Cross Section ◽  
Absorption Studies ◽  
Total Interaction ◽  
Better Than ◽  
Mass Attenuation

Mass attenuation coefficient, total interaction cross-section and effective atomic number of xPbO:(100-x)SiO2, where 30 x 70 (% weight), glass system have been investigated at 662 keV on the basis of the mixture rule. The results are in good agreement with the theoretical values, calculated by WinXCom. The mass attenuation coefficient increases with PbO content, due to higher probability of photoelectric absorption in glass. However, Compton scattering gives dominant contribution to the total mass attenuation coefficient for the glass samples studied. The shielding properties of the glass samples are also better than ordinary shielding concretes and commercial window glasses. These results indicate that the glass systems prepared in this study has a potential to be used as radiation shielding materials.

scholarly journals DETERMINATION OF RADIOLOGICAL PARAMETERS OF SOME ACTIVE PHARMACEUTICAL INGREDIENTS USING WINXCOM SOFTWARE IN THE ENERGY RANGE 1KEV TO 100KEV

2021 ◽  
Vol 5 (5) ◽  
pp. 54-62
Author(s):  
Arome Aruwa ◽  
Philibus Musa Gyuk ◽  
Columbus Tobechukwu Eze ◽  
Suleiman Isah ◽  
Achor Mathias Ogwo ◽  
...  
Keyword(s):  
Energy Range ◽  
Electron Density ◽  
Attenuation Coefficient ◽  
Atomic Number ◽  
Diclofenac Sodium ◽  
Effective Atomic Number ◽  
Mass Attenuation Coefficient ◽  
Active Pharmaceutical Ingredients ◽  
Pharmaceutical Ingredients ◽  
Mass Attenuation

The effective atomic number, electron density and mass attenuation coefficient of some selected active pharmaceutical ingredients such as Diclofenac Sodium, Femotidine, Alprazolam, Amiodar, Amiodarone, Ciprofloxacin, and Nimesulide have been calculated over the energy range from 1 keV to 100 GeV for total and partial photon interactions by using WinXCom. The obtained data shows that the change in mass attenuation coefficient and electron density varies with energy and chemical composition of the active pharmaceutical ingredients (API’s) in drugs. The results in the variation of photon interaction with energy and effective atomic number of the API’s in drug are shown in the logarithmic graphs.

Thermal stability, mechanical properties, and gamma radiation shielding performance of polyvinyl chloride/Pb(NO3)2 composites

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Sayed A. Waly ◽  
Ahmed M. Abdelreheem ◽  
Mohamed M. Shehata ◽  
Omayma A. Ghazy ◽  
Zakaria I. Ali
Keyword(s):  
Thermal Stability ◽  
Attenuation Coefficient ◽  
Polyvinyl Chloride ◽  
Polymer Matrix ◽  
Composite Films ◽  
Mass Attenuation Coefficient ◽  
Radiation Shielding ◽  
Point Sources ◽  
Linear Attenuation Coefficient ◽  
Mass Attenuation

Abstract Radiation shielding composites based on polyvinyl chloride (PVC) reinforced with different weight ratios of Pb(NO3)2 (5, 10, and 20 wt%) were prepared using the solution-casting technique. Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), thermogravimetric analysis (TGA), scanning electron microscopy, and tensile testing method were used to characterize the PVC composite films. FTIR and XRD investigations illustrate the structural change and modification of the as-prepared PVC composites. The morphological analysis of the composite revealed that Pb(NO3)2 was dispersed uniformly within PVC polymer matrix. TGA revealed that the incorporation of Pb(NO3)2 improved the thermal stability of the investigated composites, whereas adding Pb(NO3)2 to the polymer matrix worsened its tensile properties. The as-prepared composite films were investigated for radiation-shielding of gamma-rays radioactive point sources (241Am, 133Ba, 137Cs, and 60Co). Linear attenuation coefficient (μ, cm−1), mass attenuation coefficient (μ/ρ, cm2/g), and half-value layer (HVL, cm) have been estimated from the obtained data using the MicroShield program. Reasonable agreement was attended between theoretical and experimental results. The deviation between the experiment and theoretical values of mass attenuation coefficient is being to be lower than 9%, and this can be correlated to the good distribution of Pb(NO3)2. The results revealed that adding Pb(NO3)2 to PVC polymer composites improved their mass attenuation coefficient.

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