Comparative study of gamma ray shielding competence of WO 3 -TeO 2 -PbO glass system to different glasses and concretes

Study of gamma radiation shielding efficiency by 0.5TeO2-(0.5-x)Bi2O3-xWO3 glasses

“…where I 0 is initial intensity value, I is the intensity value after shielding; d is thickness, ρ is the glass density. The half-value layer (HVL) and mean free path (MFP) coefficients, which make it possible to determine the required thicknesses of protective shields in order to attenuate the radiation intensity by 50% and the average distance between two successive interactions of gamma quanta with the crystal structure, were determined using equations (4) and (5) [29,30]: Due to the amorphous nature of the synthesized glasses, density determination was carried out using a standard procedure for immersing the test samples in a liquid and subsequent calculation according to the Archimedes method. According to the data obtained, a change in the concentration of Bi 2 O 3 and WO 3 in the composition of glasses leads to an increase in the density of the synthesized glasses from 7.09 g/cm 3 for the 0.5TeO 2 -0.4Bi 2 O 3 -0.1WO 3 sample, to 7.24 g/cm 3 , 7.29 g/cm 3 , and 7.54 g/cm 3 for samples 0.5TeO 2 -0.3Bi 2 O 3 -0.2WO 3 , 0.5TeO 2 -0.2Bi 2 O 3 -0.3WO 3 and 0.5TeO 2 -0.1Bi 2 O 3 -0.4WO 3 , respectively.…”

“…At the same time, despite quite a large number of scientific works in this area of research [16][17][18][19][20][21][22][23][24][25][26][27], there are still many unresolved issues related to the search for optimal compositions and structural compounds, which will combine high absorbing and weakening ability, as well as minimum thickness. One of the promising compositions for shielding materials is a composition containing TeO 2 , Bi 2 O 3 , WO 3 , a combination of which allows obtaining high values of density, stability and values of shielding efficiency [28][29][30]. The main purpose of this article is to study the effect of changing the stoichiometry of the selected TeO 2 -Bi 2 O 3 -WO 3 composition on the shielding characteristics and attenuation of gamma radiation with an energy of 662 keV.…”

Optical and radiation shielding properties for novel glass material: TeO2/Nb2O5/Ta2O5/La2O3

“…In addition, the fabrication of glass materials and the measurement of their radiation shielding properties have continued to grow in popularity among researchers and material scientists throughout the world. There are also many parameters that can be used to determine the gamma-ray attenuation attributes of any glass system, the most important of which are the mass attenuation coefficient (MAC), linear attenuation coefficient, effective atomic number, tenth-value layer, mean free path, electron density, and half-value layer [18][19][20]. In the present work, the radiation shielding characteristics and optical properties of glass system with the composition of (86-x) TeO 2 -12Nb 2 O 5 -x(Ta 2 O 5 ) -1.0La 2 O 3 (Where x = 1.0, 5.0, 8.0, and 10 mol%) were investigated.…”

Study of double-using ultrasonic effects on the structure of PbO nanorods fabricated by the sonochemical method

“…With their good ability to absorb visible light, lead oxide nanomaterials are widely used in solar cells [9] . Furthermore, due to the high density and refractive index of lead oxide, its nanomaterials are used in the glass industry to reduce the effect of ultraviolet radiation [10] .…”