TeO2 for enhancing structural, mechanical, optical, gamma and neutron radiation shielding performance of bismuth borosilicate glasses

D’Souza, Ashwitha Nancy; Padasale, Basavaraj; Murari, M.S.; Karunakara, Naregundi; Sayyed, M.I.; Elsafi, Mohamed; Al-Ghamdi, Hanan; Almuqrin, Aljawhara H.; Kamath, Sudha D.

doi:10.1016/j.matchemphys.2022.126657

Cited by 19 publications

(4 citation statements)

References 53 publications

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“…Tellurite glasses are ideal hosts for RE oxides having widespread application in optical amplifiers due to transparency, low phonon energies, third-order nonlinear susceptibility, and high atomic number of tellurium (Barbosa et al 2021;Elkholy et al 2019;Elkholy 2002;Klimesz et al 2017;Vani et al 2021). Fabrication of glasses containing TeO 2 in our previous work resulted in improved transparency, along with increment in density values up to 5.087 gcm −3 (D'Souza et al 2023). The tellurite glasses are also comprised of remarkable radiation shielding capacity compared to the borosilicate glasses.…”

Section: Introductionmentioning

confidence: 82%

Comprehensive study on structural, optical, mechanical and radiation blocking nature of Eu3+-doped bismuth tellurite glasses

D’Souza,

Murari,

Sayyed

et al. 2024

Chem. Pap.

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A novel glass system B2O3–SiO2–Bi2O3–TeO2–BaO–ZnO doped with Eu2O3 (x = 0–4 mol%) is fabricated through melt-quench technique and coded as BiTeEu-x. Density and refractive index measurements done on the glasses resulted in the increase up to 5.4377 gcm−3 and 1.99, respectively, for 4 mol% addition of Eu2O3. Vickers micro-indentation measurements done on synthesized glasses gave increasing microhardness values with Eu3+ doping due to higher bond strength of Eu–O bond compared to Te–O bond. The Phy-X/PSD simulation software utilized for obtaining radiation shielding parameters produced highest range of mass attenuation coefficient (63.878–0.036 cm2/g) and lowest range of half-value layer (0.002–3.551 cm) for the same glass proving its superiority in radiation attenuating capacity. This article addresses the theoretical analysis of photon buildup occurring inside the fabricated glasses in 0.015–15 MeV energy range with respect to different penetration depths. Neutron shielding ability of BiTeEu-4 glass was found to be impressive with fast neutron removal cross section (FNR) value of 0.10362 cm−1.

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Section: Introductionmentioning

confidence: 82%

Comprehensive study on structural, optical, mechanical and radiation blocking nature of Eu3+-doped bismuth tellurite glasses

D’Souza,

Murari,

Sayyed

et al. 2024

Chem. Pap.

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“…Melt quenching was conducted to produce the BiTeGd-x system where Gd 2 O 3 mol% varied as 0, 1, 2, 3, and 4. A furnace temperature of 1100-1120 • C was used for its synthesis [6]. The density of prepared glasses was determined using Archimedes theory and distilled water.…”

Section: Methodsmentioning

confidence: 99%

Impact of Gd2O3 Incorporation in Structural, Optical, Thermal, Mechanical, and Radiation Blocking Nature in HMO Boro-Tellurite Glasses

D’Souza,

Sayyed,

Kamath

2024

2023 IEEE 5th Eurasia Conference on Biomedical Engineering, Healthcare and Sustainability

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“…Following this, the measurements were undertaken on an occupied SR sample to calculate the intensity (I) at a specific SR thickness (x). From these values, the experimental LAC can be calculated from the next relation [27][28][29]:…”

Section: Methodsmentioning

confidence: 99%

Effect of Cerium (IV) Oxide Particle Size on Polydimethylsiloxane Polymer to Form Flexible Materials against Ionizing Radiation

et al. 2023

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This study aims to investigate the impact of CeO2 content and particle size on the radiation shielding abilities of polydimethylsiloxane, also known as silicon rubber (SR). We prepared different SR samples with 10, 30, and 50% of micro and nano CeO2 and we measured the linear attenuation coefficient (LAC) for these samples. We found that the LAC of the SR increases by increasing the CeO2 and all prepared SR samples had higher LACs than the pure SR. We examined the effect of the size of the particles on the LAC and the results demonstrated that the LAC for nano CeO2 is higher than that of micro CeO2. We investigated the half value layer (HVL) for the prepared SR samples and the results revealed that the SR with 10% micro CeO2 had a greater HVL than the SR with 10% nano CeO2. The HVL results demonstrated that the SR containing nanoparticles had higher attenuation effectiveness than the SR with micro CeO2. We also prepared SR samples containing CeO2 in both sizes (i.e., micro and nano) and we found that the HVL of the SR containing both sizes was lower than the HVL of the SR with nano CeO2. The radiation protection efficiency (RPE) at 0.059 MeV for the SR with 10% micro and nano CeO2 was 94.2 and 95.6%, respectively, while the RPE of SR containing both sizes (5% micro CeO2 + 5% micro CeO2) was 96.1% at the same energy. The RPE results also indicated that the attenuation ability was improved when utilizing the micro and nano CeO2 as opposed to the micro CeO2 or nano CeO2 at 0.662, 1.173, and 1.333 MeV.

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TeO2 for enhancing structural, mechanical, optical, gamma and neutron radiation shielding performance of bismuth borosilicate glasses

Cited by 19 publications

References 53 publications

Comprehensive study on structural, optical, mechanical and radiation blocking nature of Eu3+-doped bismuth tellurite glasses

Comprehensive study on structural, optical, mechanical and radiation blocking nature of Eu3+-doped bismuth tellurite glasses

Impact of Gd2O3 Incorporation in Structural, Optical, Thermal, Mechanical, and Radiation Blocking Nature in HMO Boro-Tellurite Glasses

Effect of Cerium (IV) Oxide Particle Size on Polydimethylsiloxane Polymer to Form Flexible Materials against Ionizing Radiation

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