The effect of particle size on radiation shielding properties for bismuth borosilicate glass

Cheewasukhanont, W.; Limkitjaroenporn, P.; Kothan, S.; Kedkaew, C.; Kaewkhao, J.

doi:10.1016/j.radphyschem.2020.108791

Cited by 128 publications

(35 citation statements)

References 25 publications

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“…It has been calculated as 31 – 33 , MFP = μ −1 , where μ (cm −1 ) denotes a linear attenuation coefficient of the medium. When a narrow beam of radiation of initial intensity I 0 moves through a specific medium of thickness t, the number of photons (I) that can transmit the medium is given by the Lambert–Beer law 34 – 36 , I = I 0 e −μt . Also, the mixture rule is a suitable relation used to determine μ m (or µ/ρ, where ρ is the material density) for an absorber 27 , 28 , µ m = ∑ω i (µ m ) i .…”

Section: Theoretical Approach On Attenuating γ-Raysmentioning

confidence: 99%

“…The HVL used to describe the material thickness diminishes the intensity I to be 0.5 I 0 13 , HVL = 0.693 µ −1 . The μ m quantities helps in evaluating the total molecular cross-section (σ t,m ) 13 , 36 , σ t,m = µ m (M/N A ), N A is the Avogadros’ number. The σ t,m used to calculate the average atomic cross-section (σ t,a ) 12 , 36 , σ t,a = σ t,m (∑n j ) −1 .…”

Section: Theoretical Approach On Attenuating γ-Raysmentioning

confidence: 99%

“…The μ m quantities helps in evaluating the total molecular cross-section (σ t,m ) 13 , 36 , σ t,m = µ m (M/N A ), N A is the Avogadros’ number. The σ t,m used to calculate the average atomic cross-section (σ t,a ) 12 , 36 , σ t,a = σ t,m (∑n j ) −1 . The fractional abundance f i , atomic mass A i , and atomic weight Z i were used to calculate the average electronic cross-section (σ t,el ), where σ t,el = (N A ) −1 ∑f i A i (µ m ) (Z i ) −1 .…”

Section: Theoretical Approach On Attenuating γ-Raysmentioning

confidence: 99%

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Tailoring bismuth borate glasses by incorporating PbO/GeO2 for protection against nuclear radiation

Kumar

Jain

Sayyed

et al. 2021

Sci Rep

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Nuclear radiation shielding capabilities for a glass series 20Bi2O3 − xPbO − (80 − 2x)B2O3 − xGeO2 (where x = 5, 10, 20, and 30 mol%) have been investigated using the Phy-X/PSD software and Monte Carlo N-Particle transport code. The mass attenuation coefficients (μm) of selected samples have been estimated through XCOM dependent Phy-X/PSD program and MCNP-5 code in the photon-energy range 0.015–15 MeV. So obtained μm values are used to calculate other γ-ray shielding parameters such as half-value layer (HVL), mean-free-path (MFP), etc. The calculated μm values were found to be 71.20 cm2/g, 76.03 cm2/g, 84.24 cm2/g, and 90.94 cm2/g for four glasses S1 to S4, respectively. The effective atomic number (Zeff)values vary between 69.87 and 17.11 for S1 or 75.66 and 29.11 for S4 over 0.05–15 MeV of photon-energy. Sample S4, which has a larger PbO/GeO2 of 30 mol% in the bismuth-borate glass, possesses the lowest MFP and HVL, providing higher radiation protection efficiency compared to all other combinations. It shows outperformance while compared the calculated parameters (HVL and MFP) with the commercial shielding glasses, different alloys, polymers, standard shielding concretes, and ceramics. Geometric Progression (G-P) was applied for evaluating the energy absorption and exposure buildup factors at energies 0.015–15 MeV with penetration depths up to 40 mfp. The buildup factors showed dependence on the MFP and photon-energy as well. The studied samples' neutron shielding behavior was also evaluated by calculating the fast neutron removal cross-section (ΣR), i.e. found to be 0.139 cm−1 for S1, 0.133 cm−1 for S2, 0.128 cm−1 for S3, and 0.12 cm−1 for S4. The results reveal a great potential for using a glass composite sample S4 in radiation protection applications.

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Section: Theoretical Approach On Attenuating γ-Raysmentioning

confidence: 99%

Section: Theoretical Approach On Attenuating γ-Raysmentioning

confidence: 99%

Section: Theoretical Approach On Attenuating γ-Raysmentioning

confidence: 99%

See 1 more Smart Citation

Tailoring bismuth borate glasses by incorporating PbO/GeO2 for protection against nuclear radiation

Kumar

Jain

Sayyed

et al. 2021

Sci Rep

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“…Begitu pula pada sampel yang diberi paparan radiasi dengan tegangan tabung sinar X sebesar 100 kV, hampir semua senyawa mengalami penurunan konsentrasi. Perubahan komposisi akan mengubah kemampuan bahan sebagai bahan perisai radiasi [15][16][17]. Jadi paparan radiasi dengan dosis tinggi pada target akan menimbulkan radiasi hambur yang tinggi pula.…”

Section: Hasil Dan Pembahasanunclassified

Deteksi Perubahan Komposisi Cat Dinding Akibat Paparan Sinar X

2020

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Selama ini penelitian hanya fokus pada cara dan pemakaian alat proteksi untuk pasien dan pekerja radiasi. Bahan proteksi paparan radiasi ionik lain yang penting bagi pasien, pekerja radiasi, bahkan masyarakat umum adalah dinding ruangan radiologi. Dinding ruangan radiologi mempunyai syarat tertentu, seperti ketebalan, komposisi bahan, dan warna. Dinding harus berwarna putih agar bersih dari kotoran maupun mikroorganisme. Dinding ruangan tidak terkena paparan langsung, melainkan melalui hamburan, sehingga dosis paparan rendah. Dengan memvariasikan tegangan tabung sinar X seperti yang digunakan pada diagnostik, dilakukan pengamatan terhadap perubahan komposisi cat dinding dengan X-Ray Flourosence (XRF). Hasil penelitian menunjukkan perubahan besar pada laju dosis 1,19 mGy/s atau pada tegangan tabung 80 kV. Senyawa yang terkandung dalam cat menurun persentasenya, bahkan senyawa K2O dan Nb2O5 tidak terdeteksi. Hal ini menunjukkan bahwa jumlah pemakaian sinar X konvensional yang tinggi akan meningkatkan kerusakan cat dinding ruang radiologi. Kata kunci: Sinar X, cat dinding, X-Ray Flouroawnce (XRF), diagnostik

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“…The outcomes revealed that the density of the glasses increased with the increase of Bi 2 O 3 content, while the particle size did not account for the density. They found that the radiation-shielding parameters of these glasses were enhanced over those for traditional glass windows and for some types of concrete [ 45 ]. S. Kaewjaeng et al prepared and investigated (80−x)B 2 O 3 :10SiO 2 :10CaO:xLa 2 O 3 glass (where x = 10, 15, 20, 25, and 30 mol%) for x-ray-shielding, physical, and optical properties.…”

Section: Introductionmentioning

confidence: 99%

In-Silico Monte Carlo Simulation Trials for Investigation of V2O5 Reinforcement Effect on Ternary Zinc Borate Glasses: Nuclear Radiation Shielding Dynamics

et al. 2021

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In the current study, promising glass composites based on vanadium pentoxide (V2O5)-doped zinc borate (ZnB) were investigated in terms of their nuclear-radiation-shielding dynamics. The mass and linear attenuation coefficient, half-value layer, mean free path, tenth-value layer, effective atomic number, exposure-buildup factor, and energy-absorption-buildup factor were deeply simulated by using MCNPX code, Phy-X PSD code, and WinXcom to study the validation of ZBV1, ZBV2, ZBV3, and ZBV4 based on (100−x)(0.6ZnO-0.4B2O3)(x)(V2O5) (x = 1, 2, 3, 4 mol%) samples against ionizing radiation. The results showed that attenuation competencies of the studied glasses slightly changed while increasing the V2O5 content from 1 mol% to 4 mol%. The domination of ZnO concentration in the composition compared to B2O3 makes ZnO substitution with V2O5 more dominant, leading to a decrease in density. Since density has a significant role in the attenuation of gamma rays, a negative effect was observed. It can be concluded that the aforementioned substitution can negatively affect the shielding competencies of studied glasses.

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The effect of particle size on radiation shielding properties for bismuth borosilicate glass

Cited by 128 publications

References 25 publications

Tailoring bismuth borate glasses by incorporating PbO/GeO2 for protection against nuclear radiation

Tailoring bismuth borate glasses by incorporating PbO/GeO2 for protection against nuclear radiation

Deteksi Perubahan Komposisi Cat Dinding Akibat Paparan Sinar X

In-Silico Monte Carlo Simulation Trials for Investigation of V2O5 Reinforcement Effect on Ternary Zinc Borate Glasses: Nuclear Radiation Shielding Dynamics

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