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This paper includes a comprehensive analysis of the radiation shielding, optical properties, and structural makeup of polymer composites that contain Dy 2 O 3 additions. XRD-pattern investigates the effect of loading Dy 2 O 3 content on PS, with the average crystallite size of Dy 2 O 3 decreases from 39 nm to 30 nm as Dy 2 O 3 increases from 2.5 to 7.5 wt% in the PS matrix. The optical properties of the nanocomposites showed that with the increase in the Dy 2 O 3 content, the transmittance, as well as the direct and indirect band gap, decreased. The E g Indirect bandgap decreased from 3.1 to 2.75 eV with a Dy 2 O 3 increase from 0 to 7.5 wt%, while the E g direct Bandgap reduced from 4.6 to 4.35 eV. While the Urbach energy Eu and the refractive index increase, Eu rises from 0.48 to 0.60 e V, and n improves from 1.4 to 1.78 from 0 to 7.5 wt%. In order to conduct an accurate analysis of the gamma-ray attenuation capabilities of the selected new polymer composites, these composites were manufactured with varying proportions of the additive components. With the assistance of a Na(Tl) detector, experimental assessments were carried out on the gamma rays throughout a broad spectrum of photon energies, ranging from 81 keV up to 1416 keV. The sample encased in PS/Dy7.5 demonstrates excellent radiation attenuation, and it is important to note that this novel polymer shielding material does not include any hazardous components. • "Dy2O3 in PS enhances radiation shielding". • "Increased Dy2O3 reduces PS's transmittance". • "Dy2O3 addition lowers bandgap energy". • "Higher Dy2O3 increases refractive index". • "Dy2O3/PS composites ideal for radiation protection". [ABSTRACT FROM AUTHOR]

The glasses with the composition (15-x) Na 2 O–45B 2 O 3 –20Bi 2 O 3 –20SiO 2 – x La 2 O 3 , where, x = (0 ≤ x ≥ 15) were successfully manufactured with a fast melt-quenching method. The density (ρ) of the glasses ranged from 4.913 to 6.497 g/cm3 and the molar volume (V m) ranged from 29.68 to 28.54 cm3/mol. FTIR spectroscopy to achieve further understanding of the structure of the synthesized glasses was performed. FT-IR spectra confirmed that the addition of La 2 O 3 modifies the glasses and broadens the absorption bands. The indirect and direct energy gaps increased as the amount of La 2 O 3 in the sample increased, according to UV–visible spectroscopic data. It was discovered that the refractive index ranged from 2.249 to 2.275. The study employed the DTA to explore the thermal features of synthesized glasses. The study employed the Phy-X/PSD code to explore the radiation-shielding properties of these samples. At low (E) of 0.015 MeV, the values of M A C were found to be 67.624, 67.739, 67.845, 68.032, and 68.193 cm2/g, while at (E) (15 MeV), which were 0.040, 0.041, 0.0413, 0.0418, and 0.042 cm2/g, in increasing order for the glasses BBSNLa-0, BBSNLa-2.5, BBSNLa-5, BBSNLa-10, and BBSNLa-15. Moreover, the values of μ m at (E) (15 MeV), which were 0.040, 0.041, 0.0413, 0.0418, and 0.042 cm2/g, for BBSNLa-0, BBSNLa-2.5, BBSNLa-5, BBSNLa-10, and BBSNLa-15 respectively. The combination of superior γ -radiation protection and favorable optical properties makes the BBSNLa-15 glass sample a promising candidate for applications in both optoelectronics and radiation protection. • The (15-x) Na 2 O–45B 2 O 3 –20Bi 2 O 3 –20SiO 2 – x La 2 O 3 , glasses were prepared. • Density increased from 4.913 to 6.497 g/cm3. • The glass thermal stability increased. • The BBSNLa-15 sample a promising candidate for applications in both optoelectronics and radiation protecting. [ABSTRACT FROM AUTHOR]

This study investigates the characteristics of lanthanum (La)-doped lead titanate (PbLa x Ti (1-3x/4) O 3 where, x = 0.0, 0.02, 0.04, 0.06, 0.08, and 0.1), a type of perovskite ceramic. It specifically focuses on analyzing its structure, vibrational properties, and efficacy in shielding against radiation. The prepared samples are investigated by X-ray diffraction (XRD), which clarified that the small doping of La (x ≤ 0.06) produced the required phase, and increasing the La doping (x > 0.06) produced nonrequired phases (secondary phase). Also, increasing the La doping converted the crystal symmetry from tetragonal to cubic, which was confirmed by the tetragonality raio (c/a) calculations. Also, the samples are investigated by Fourier transform infrared (FTIR) spectroscopy to confirm the XRD results. Transmission electron microscopy (TEM) examination clarified that the prepared samples were in the nanoscale range with a maximum crystallite size value of around 70 nm. In addition, the shielding effectiveness of all the prepared samples was theoretically evaluated using the Phy-X/PDS program by considering characteristics such as the linear attenuation coefficient (G LAC), mean free path (G MFP), transmission factor (TF), and radiation protection efficiency (RPE). Increasing the La concentration increases the theoretical density to 4.98 gm/cm3 at x = 0.1, leading to low TF and G MFP values and high G LAC values. This produces samples with high attenuation to radiation and high shielding effectiveness. • Lanthanum doping enhances PbTiO3 structure, converting tetragonal symmetry to cubic. • XRD and TEM confirm nanostructure of La-doped samples with crystallite size up to 70 nm. • Increased La doping significantly boosts radiation protection efficiency and linear attenuation. • Study highlights potential of La-doped PbTiO3 for advanced radiation shielding applications. [ABSTRACT FROM AUTHOR]

This study investigates the effects of La 2 O 3 on the mechanical, thermal, and physical characteristics and the ability of bismuth germinate glass with different compositions to protect against radiation. The glasses included ZnO, Na 2 O, Bi 2 O 3 , GeO 2 , and different concentrations of La 2 O 3 (between 0 and 20 mol%). The glass density substantially increased from 3428 kg/m³ to 4412 kg/m³ as the concentration of La 2 O 3 increased. This observation underscores the considerable influence of La 2 O 3 on densification, which can be attributed to its higher coordination number and molecular weight. In addition, bridging oxygen atoms reduced the molar volume from 60.2 to 57.8 × 10−6 m3. This decrease suggests the synthesis of oxygen atoms, which increase the glass transition temperature from 536 to 573 K, improving the glass's thermal properties under investigation. As the amount of La 2 O 3 increased, the ultrasonic velocity measurements indicated an increase in longitudinal and shear velocities from 3192 to 3611 m/s and 1884–2185 m/s, respectively. Longitudinal and shear ultrasonic velocity measurements can be utilized to determine the elastic moduli, Poisson's ratio, and Debye temperature. Correlations between these results and theoretical models highlighted the strengthening effect of La 2 O 3 on the glass structure. Another important study area was radiation shielding efficiency, which showed that higher La 2 O 3 content improved photon blocking. The study showed the potential of La 2 O 3 -enriched glasses in applications needing radiation protection by looking at the effective atomic number and neutron shielding. Overall, adding La 2 O 3 strengthens the characteristics of bismuth-germinate glasses, increasing their suitability for certain applications in radiation-exposed areas. • La2O3-doped bismuth-germanate glasses synthesized. • Improved mechanical and shielding properties. • Empirical and theoretical validations were conducted. • Outperforms heavy-weight concrete in shielding. [ABSTRACT FROM AUTHOR]

This research explored the mechanical, physical, and ionizing radiation shielding properties of 10PbO–10Na 2 O-(80-x)B 2 O 3 -xBaO glass samples, where x = 10, 15, 20, and 25. The conventional melt-quench technique was employed to prepare the samples. The elastic moduli were investigated using the Makishima–Mackenzie model. At the same time, the radiation shielding properties involved a comprehensive analysis of the effective atomic number, linear attenuation and mass attenuation coefficients, half-value and tenth-value layers, radiation protection efficiency, and transmission factors, as well as the buildup factors for different mean-free paths (mfp). The impact of BaO (mol%) on the parameters mentioned above was investigated across a range of photon energies (0.015–15 MeV). In addition, the effect of BaO on the physical and mechanical properties of current glasses was studied. The addition of BaO showed an inverse impact on mechanical and physical properties, gradually reducing the glass's stability. In contrast, adding BaO to the compound enhanced photon attenuation ability, which means the sample with 25% BaO had the optimum capacity for radiation shielding amongst all the prepared samples. Moreover, the results demonstrated the complex interplay of Compton scattering, pair production, and the photoelectric effect, influencing the attention of photons. This work provides beneficial intuition into designing and optimizing glass-based radiation shielding materials. • We used the melt-quench technique to fabricate four 10PbO–10Na2O-(80-x)B2O3-xBaO glass samples, where x = 10, 15, 20, and 25. • The effect of BaO as additives was examined by investigating physical, mechanical, and radiation shielding features. • Comprehensive radiation shielding properties were studied. • Based on obtained results, the B55Ba25 sample has the highest shielding properties, which nominate using it in the shielding application. [ABSTRACT FROM AUTHOR]

To examine the structural and radiation shielding features of a borate glass matrix comprising sodium oxide (Na 2 O), lanthanum oxide (La 2 O 3), cobalt oxide (CoO), and zinc oxide (ZnO), we employed the FTIR technique in the range 400–1600 cm−1 and Phy-X within the photon energy between 0.015 and 15 MeV. The measured density changed from 2.179 g / cm 3 to 2.931 g / cm 3 with additional La 2 O 3 dopants, from 0 to 8 mol%. Based on the FTIR results, it was seen that the contents of tetrahedral borate units (BO 4) increase with additional La 2 O 3 dopants. Therefore, the values of N 4 ratios increased from 46.86% to 49.36%, suggesting that the La 2 O 3 dopants transform the tetrahedral borate units (BO 3) to BO 4 units; this result supports the density increments. While, the contents of nonbridging oxygen atoms decreased from 8.23% to 5.77% when B 2 O 3 is replaced with La 2 O 3. Additionally, the ionizing radiation shielding investigations confirmed that increasing the amount of La 2 O 3 at the expense of B 2 O 3 leads to better overall shielding ability by increasing the mass attenuation coefficient (MAC) values. Furthermore, the additional concentrations of La 2 O 3 decreased half value layer (HVL) of the glass matrix. The comparison between the studied glass matrix HVL and selected common ionizing radiation shielding materials HVL reflects the positive effects of La 2 O 3 on shielding ability. The improved radiation shielding features of the investigated glass matrix propose them for ionizing radiation shielding protection. • The measured density changed from 2.179 g / cm 3 to 2.931 g / cm 3 with additional La 2 O 3 dopants, from 0 to 8 mol%. • Based on the FTIR results, it was seen that the contents of tetrahedral borate units (BO 4) increase with additional La 2 O 3 dopants. • The values of N 4 ratios increased from 46.86% to 49.36%, suggesting that the La 2 O 3 dopants transform the tetrahedral borate units (BO 3) to BO 4 units. • The contents of nonbridging oxygen atoms decreased from 8.23% to 5.77% when B 2 O 3 is replaced with La 2 O 3. • Increasing the amount of La 2 O 3 at the expense of B 2 O 3 leads to better overall shielding ability by increasing the mass attenuation coefficient (MAC) values. [ABSTRACT FROM AUTHOR]

The objective of this study was to examine the radiation protection capabilities of glass specimens with the composition xBaO: 1.5Dy 2 O 3 : 25ZnO: 5Al 2 O 3 : 30B 2 O 3 : (x-38.5)SiO 2 by varying x = 10 (Ba10) to 35 (Ba35) mol% of BaO concentrations. The glass specimens were fabricated using the melt-quenching technique. The results revealed that the physical and optical properties, such as density (ρ), molar volume (V m), and refractive index (RI), had a similar trend. The % transmission result of glass specimens indicates higher transparency than those of commercial and x-ray windows. The experimental values of total attenuation (μ m) in this study used the Compton scattering technique. The obtained results were then compared with theoretical calculation obtained from the WinXCom program and the PHITS (Particle and Heavy Ion Transport Code System) Monte Carlo simulation. The results indicated the values of μ m , effective atomic number (Z eff), and electron density (N eff) increase with the rise in BaO content. However, these values decrease at higher energy levels. The observed trends align with the theoretical predictions of the WinXCom program and the obtained results from the PHITS Monte Carlo simulation. The half-value layer (HVL) showed better shielding properties than both standard radiation shielding glass and other materials. Additionally, an examination of energy absorption (EABF) and exposure buildup factors (EBF) revealed a distinct advantage associated with the incorporation of BaO atoms. This advantageous effect was observed in the reduction of photon scattering events, further enhancing the overall efficacy of the shielding properties in the glass specimens under study. • High-transparency borosilicate glasses was developed as nuclear radiation protection material. • 137Cs used for radiation shielding properties investigation via the Compton scattering technique. • Total attenuation experimental values compared to WinXCom and PHITS Monte Carlo simulation. • Replacing of BaO in glass matrix can enhance shielding properties of the glass. [ABSTRACT FROM AUTHOR]

In this research, different amounts of Ce-doped ZnO thin films were synthesized using the spray pyrolysis method. Structural, morphological and optical properties of these synthesized films were investigated. In XRD analyses, wurtzite (hexagonal) structures were observed in the films. In SEM analysis, there were changes in the surface morphology of the films with doping, and in cross-section measurement, the thickness of the films was measured to be approximately 1.2 μm. In UV–vis spectrometry analysis, it is seen that the effect of Cerium contribution on optical transmittance and band gap positively affects shielding. NaI(Tl) detector and gamma energies of 384, 1173, and 1333 keV have been used to investigate the radiation protection properties of these synthesized films. As a result of these measurements, linear attenuation coefficient (LAC) values have been obtained. Radiation shielding parameters have been calculated with these (LAC) values. The Mass Attenuation Coefficient (MAC), Half Value Layer (HVL), Tenth Value Layer TVL (and) Mean Free Path (MFP) values have been also calculated using this LAC result. According to these results, Ce-doped ZnO films were found to be effective in radiation shielding. • In this article, the effect of cerium doping ratio to ZnO on radiation shielding was examined. • Thin films were produced using the spray pyrolysis technique. • In experiments on radiation shielding properties, 133Ba 384 keV, 60Co 1173 keV and 60Co 1333 keV energy gamma rays were used. • It was determined that the increase in the Cerium rate had a positive effect on radiation shielding. • It was observed that cerium doping affected the energy band gap. [ABSTRACT FROM AUTHOR]

The focus of the current research is to see the effectiveness of some quaternary ChGs as shielding materials for very energetic radiation such as X-rays and gamma rays. The ChGs addressed in this investigation belong to a quaternary glass system of SeTeSnAg. The online Phy-X/PSD program has been used to determine several parameters (e.g., linear/mass attenuation coefficients) related to radiation shielding characteristics. Further, we have determined various shielding parameters (e.g., Half-Value Layer, mean free path, transmission factor, efficacy of radiation protection, removal cross-section) as well as the mechanical properties (e.g., bulk modulus, shear modulus, longitudinal modulus, and Poisson's ratio). It is also discussed how replacing Se atoms with silver affects the shielding properties of the parent SeTeSn glass. • New SeTeSnAg glasses have been tested for use as radiation shields. • It has been discovered that including silver helps parent SeTeSn glass' radiation shielding characteristics to be optimized. • The trending pattern of the effective removal cross-section is similar to that of the molar volume. • Quaternary glass with a greater Ag concentration has the lowest MAC values. [ABSTRACT FROM AUTHOR]

The purpose of this research is to study the structure, optical and radiation shielding effectiveness of radiation shielding glasses based on the formula [x BaO–(80-X) B 2 O 3 – 1NiO–11ZnO]; x = 8, 16, 24 and 32 mol%] have been obtained from melt quenching method. The density was increased from 2.861 (± 0.001) g.cm−3 to 3.119 (± 0.001) g.cm−3 due to an effective concentration of BaO. Furthermore, the vibrational investigations confirmed the conversion from trigonally-coordinated boron units (B O 3) to tetrahedrally-coordinated boron units (B O 4) with progressive enhancement in tetrahedrally-coordinated boron ratio (N 4) , besides a significant deterioration in non-bridging oxygen units (NBOs) inside the glass network due to the further concentrations of BaO. Optical studies showed the increase in optical band gaps from 3.22 (± 0.01) eV to 3.40 (± 0.01) eV with further concentrations of BaO from 8 to 32 mol%. This increment was attributed to the reduced NBO concentrations inside the glass network. Moreover, the nonlinear optical parameters showed decreased values due to the effective addition of BaO. Furthermore, the radiation shielding studies showed that the addition of BaO to the present glasses is an effective way to improve their radiation shielding performance. Additionally, to better understand the radiation protection provided by these glasses, a comparison of their half-value layers (HVL) with those of previously reported glasses was carried out at 0.662 MeV of photon energies. This comparison confirmed the improved radiation shielding performance of the present glass system. • With increasing the BaO/B 2 O 3 contents, the linear refractive index decrease. • With increasing the BaO/B 2 O 3 contents, the nonlinear refractive index decrease. • The radiation shielding studies confirmed the improved radiation shielding performance of the present glass system. [ABSTRACT FROM AUTHOR]

The development of environmentally friendly radiation shielding (RS) materials has become the requirement of the day. The aim is to either enhance the characteristics of existing materials or to search for novel materials with better RS properties that are stable, nontoxic, and abundant. Recently, SrTiO 3 (STO), a perovskite material, has gained attention owing to its tunable and exceptional optical, electrical, and structural properties. In this work, we investigate the RS peculiarities of STO doped with various amounts of WO 3 nanowires (x = 0.0, 2.0, 5.0, and 10.0 wt%). The different samples were firstly fabricated by the solid-state reaction method and then characterized by UV–visible spectroscopy and X-ray diffraction techniques. The four synthesized ceramics have cubic crystal structure. Both direct and indirect energy bandgaps showed an opposite variance with the crystallite size of the samples. The radiation shielding properties were experimentally assessed using the source-to-sample-to-detector technique. The linear attenuation coefficient (LAC) for STO is lower than that of the STO prepared with WO 3 NWs, which demonstrated the importance of adding WO 3 NWs to improve the attenuation performance of the synthesized ceramics. The radiation protection efficiency (RPE) at 0.06 MeV for the STO without and with WO 3 NWs is almost 100%, which indicates that the current samples are efficient for low energy and can stop all the photons in this energy range. For the energy of 0.662 MeV, we found that the RPE became much less than 100% and reached 31.19% for the STO and varied between 31.95 and 38.58% for the STO with 2–10% of WO 3 NWs. • Synthesis of SrTiO 3 ceramic with different amounts of WO 3 nanowires via SSR route. • Cubic structure for all as-prepared ceramic is obtained. • The bandgap energy values showed an opposite variance with the crystallite size. • The effect of WO 3 nanowires on radiation shielding was experimentally studied. • Good radiation attenuation efficiency is achieved for ceramic with 10% of WO 3 NWs. [ABSTRACT FROM AUTHOR]

The aim of this investigation is to analyse the radiation shielding features of a SrO–B 2 O 3 –TeO 2 glass system. The glasses have the composition of 10SrO-(90-X)B 2 O 3 -XTeO 2 , where X is equal to 40, 45, 50, 55, and 60 mol%. The mass attenuation coefficients (MAC) of the samples were experimentally determined and were validated with results obtained using the Phy-X/PSD software. Narrow beam transmission geometry was utilized to obtain the experimental MAC values. When comparing the experimental and theoretical values, the results were found to strongly agree with each other. Using the MAC values, the linear attenuation coefficients (LAC) of the glasses were determined. The results demonstrated that the LAC values decrease with increasing energy, meaning that the glasses are more effective against lower energy photons. The radiation protection efficiency (RPE) showed that increasing the TeO 2 content in the glasses improves the shielding ability of the glasses. The HVL and MFP were next calculated and the SBT60 sample showed to have the lowest values at all energies, while having the greatest Z eff and N eff. Lastly, the MFP results for the SBT60 glass were compared against other common radiation shields and it was demonstrated that the sample outperformed most of the shields it was compared against. Therefore, it was concluded that the SBT60 glass has great potential as an environmentally friendly shield for radiation applications. • The radiation shielding features of a SrO–B 2 O 3 –TeO 2 glass system have been reported. • The MAC were experimentally determined and were validated with the Phy-X/PSD. • The RPE showed that increasing the TeO 2 content improves the shielding ability. • SBT60 glass has great potential as a shield for radiation applications. [ABSTRACT FROM AUTHOR]

The work is devoted to the study of the effect of changes in the concentration of Bi 2 O 3 in the structure of 0.5TeO 2 -(0.5-x)WO 3 -xBi 2 O 3 telluride glasses on the optical, radiation shielding and strength characteristics. A mechanochemical method with subsequent sintering at a temperature of 1000 °C was chosen as a method for obtaining glasses. This method of producing glasses allows obtaining amorphous-like glasses with high strength values. During the determination of strength properties, it was found that an increase in the Bi 2 O 3 concentration leads to an increase in strength by 30–50% at concentrations x = 0.2–0.25. During measurements of optical properties, it was found that an increase in the Bi 2 O 3 concentration leads to a change in the transmission value, as well as a shift in the fundamental absorption edge. During tests to determine the radiation shielding efficiency of the synthesized glasses, it was found that an increase in the Bi 2 O 3 concentration leads to an increase in the radiation shielding characteristics by a factor of 1.5–2 when absorbing gamma quanta with energies of 660–1270 keV, and in the case of low-energy gamma quanta, their almost complete absorption. • Changes in density and porosity depending on the concentration of Bi 2 O 3 dopant. • The optical properties of glasses, band gap and refractive index were determined using the UV–Vis spectroscopy method. • TWBO-4 and TWBO-5 samples the shielding efficiency is more than 93% that demonstrates that practically all gamma quanta are absorbed in these glasses. • The shielding efficiency greater than 50% for TWBO-4 and TWBO-5 samples in the case of shielding of gamma quanta with an energy of 1270 keV. [ABSTRACT FROM AUTHOR]

This study aimed to fabricate a high-density glass sample with superior physical, structural and mechanical properties that can be used in medical and industrial radiation facilities. For the chief purpose of originating a translucent radiation shielding with remarkable mechanical properties, a glass system of a heavy metal oxide alumino-borosilicate glass of composition (5-x)Al 2 O 3 –50SrO–25B 2 O 3 –20SiO 2 –xBi 2 O 3 (0≤ x ≤ 5 wt%) was fabricated by traditional melt-quenching technique. XRD curves presented the disappearance of regular sharp lines, affirming the glassy nature of the glass system. Additionally, the determination of experimentally elastic moduli of the translucent glasses showed their good rigidity, along with good elastic constants. The comprehensive analysis of experimentally determined γ-radiation shielding parameters for all the glasses such as linear attenuation coefficient (μ) and mass attenuation coefficient (μ m) have been evaluated, and derived μ amounts are in good compliance with deduced FLUKA codes respective μ outcomes. Next, by applying μ outputs, T 1/2 , and λ were estimated. All glasses possess exemplary absorption ability for the lower energy photons as authenticated by radiation protection efficiency (RPE). In all inspected glasses, comparatively higher density (4.115 g/cm3), greater μ, and RPE, and the minimum T 1/2 , and λ values were reported for superior Al–Bi4 glass sample. • This study aimed to fabricate a high-density Strontium–Silicon Borate glass sample. • Physical, structural and mechanical properties were determined. • Gamma-ray attenuation properties were experimentally measured. • Experimental Radiation Protection Efficiency (RPE) was determined. • Al–Bi4 glass sample was reported with superior material properties. [ABSTRACT FROM AUTHOR]

This paper presents data on the study of changes in the structural, optical, and gamma radiation shielding characteristics of TeO 2 –MoO–Bi 2 O 3 ceramics doped with СеО 2. Doping was carried out by adding CeO 2 powder to the composition of ceramics during mixing in the following molar proportions of 0.05, 0.10, 0.15, 0.20, and 0.25 mol %. Using the method of X-ray phase analysis, the dynamics of phase transitions was established: Bi 6 Te 2 O 13 /Bi 4 MoO 9 → Bi 4 MoO 9 /CeTe 2 O 6. It was found that an increase in the concentration of the dopant leads to a change in the content of the phases, followed by the equilibration of the Bi 4 MoO 9 and CeTe 2 O 6 phases at a dopant concentration of 0.20 and the dominance of the CeTe 2 O 6 phase at a concentration of 0.25. During the determination of optical characteristics, it was found that doping leads to sharp change in the fundamental absorption edge and a decrease in the E g value from 2.27 eV to 1.87 eV, as well as the appearance of two absorption bands with energies of 1.72 eV and 2.39 eV. During the determination of gamma radiation shielding characteristics, it was found that an increase in the concentration of CeO 2 leads to an increase in gamma radiation shielding efficiency exceeding 50% for dopant concentrations above 0.15 M in the composition of ceramics. • Shielding characteristics of TeO 2 –MoO–Bi 2 O 3 ceramics doped with СеО 2. • Doping with CeO 2 oxide leads not only to an increase in the degree of crystallinity and density of ceramics. • The dependence of the change in the band gap and the density of dislocations in ceramics. • Radiation protection efficiency versus dopant concentration. [ABSTRACT FROM AUTHOR]

This work aimed to investigate optical, structural and physical properties of newly developed Dolomite reinforced borate glasses via experimental and simulation techniques. Accordingly, a glass composition (40-x) B 2 O 3 –40PbO–20ZnO-xDolomite of various compositions of Dolomite [CaMg(CO 3) 2 ] where, (x = 0.0, 1.0, 2.0, 3.0 and 4 wt%) were synthesized by using melt-quenching method. The Dolomite [CaMg(CO 3) 2 ] doped glasses encoded DG-0, DG-1, DG-2, DG-3 and DG4 with different compositions are prepared. The optical properties of prepared dolomite glasses have been measured. The results show an enhancement of the absorbance as dolomite contents increases. Using gamma spectroscopy, the radiation shielding properties have been measured. Moreover. Comparatively higher density (DG-4 = 3.868 g/cm3), greater μ, μ m and lower T 1/2 , λ values achieved for (40-x) B 2 O 3 –40PbO–20ZnO-xDolomite glass indicated it as a better gamma shield. Besides, the calculated Radiation protection efficiency at 1 cm observe that the (40-x) B 2 O 3 –40PbO–20ZnO-x[CaMg(CO 3) 2 ] sample has commensurately greater and ranged (14.11565 at 2.614 MeV and 98.35382 at 0.081 MeV). The results observed that Dolomite addition improves the gamma protection ability of lead-zinc borate glasses. The results indicate that the highest Dolomite addition encoded DG-4 has the best shielding competence with measurable physical and optical properties. • A various compositions of Dolomite glass were synthesized by using melt-quenching method. • The results show an enhancement of the absorbance as dolomite contents increases. • The highest Dolomite addition encoded DG-4 has the best shielding competence. [ABSTRACT FROM AUTHOR]