scholarly journals The influence of BaO on the mechanical and gamma / fast neutron shielding properties of lead phosphate glasses

2021 ◽  
Author(s):  
K.A. Mahmoud ◽  
F.I. El-Agawany ◽  
O.L. Tashlykov ◽  
Emad M. Ahmed ◽  
Y.S. Rammah
Keyword(s):  
Fast Neutron ◽  
Phosphate Glasses ◽  
Lead Phosphate ◽  
Neutron Shielding ◽  
Shielding Properties

Development of SiO2 based doped with LiF, Cr2O3, CoO4 and B2O3 glasses for gamma and fast neutron shielding

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Bünyamin Aygün ◽  
Erdem Şakar ◽  
Abdulhalik Karabulut ◽  
Bünyamin Alım ◽  
Mohammed I. Sayyed ◽  
...  
Keyword(s):  
Monte Carlo Simulation ◽  
Monte Carlo ◽  
Fast Neutron ◽  
Cross Sections ◽  
Gamma Ray ◽  
Absorbed Dose ◽  
Neutron Shielding ◽  
Shielding Properties ◽  
Effective Neutron ◽  
Simulation Codes

AbstractIn this study, the fast neutron and gamma-ray absorption capacities of the new glasses have been investigated, which are obtained by doping CoO,CdWO4,Bi2O3, Cr2O3, ZnO, LiF,B2O3 and PbO compounds to SiO2 based glasses. GEANT4 and FLUKA Monte Carlo simulation codes have been used in the planning of the samples. The glasses were produced using a well-known melt-quenching technique. The effective neutron removal cross-sections, mean free paths, half-value layer, and transmission numbers of the fabricated glasses have been calculated through both GEANT4 and FLUKA Monte Carlo simulation codes. Experimental neutron absorbed dose measurements have been carried out. It was found that GS4 glass has the best neutron protection capacity among the produced glasses. In addition to neutron shielding properties, the gamma-ray attenuation capacities, were calculated using newly developed Phy-X/PSD software. The gamma-ray shielding properties of GS1 and GS2 are found to be equivalent to Pb-based glass.

Optical, Spectral, and Radiation-Shielding Properties of High-Lead Phosphate Glasses

2005 ◽  
Vol 31 (5) ◽  
pp. 583-590 ◽  
Author(s):  
V. I. Arbuzov ◽  
N. Z. Andreeva ◽  
N. A. Leko ◽  
S. I. Nikitina ◽  
N. F. Orlov ◽  
...  
Keyword(s):  
Radiation Shielding ◽  
Phosphate Glasses ◽  
Lead Phosphate ◽  
Shielding Properties ◽  
High Lead

Preparation and Thermal/Fast Neutron Shielding Properties of Novel Boron Containing Ore Composites

2013 ◽  
Vol 743-744 ◽  
pp. 613-622 ◽  
Author(s):  
Zhe Fu Li ◽  
Xiang Xin Xue ◽  
Pei Ning Duan ◽  
Ang Tian ◽  
Shu Xian Li ◽  
...  
Keyword(s):  
Fast Neutron ◽  
Cross Section ◽  
Atomic Number ◽  
Absorbed Dose ◽  
Neutron Shielding ◽  
Factors Affecting ◽  
Average Atomic Number ◽  
Shielding Properties ◽  
Relationship Of ◽  
The Relationship

Four novel boron containing ores/epoxy composites were prepared by using nature ludwigite green ore (NLGO), artificial ores including boron containing iron ore concentrate (BCIOC), boron rich slag (BRS) and boron mud (BM) as neutron absorbers, which were obtained by dressing from NLGO, blast furnace separation from BCIOC and borax production, respectively. The microstructure of the composites was investigated by X-ray diffraction (XRD), scanning electron microscope (SEM) and Fourier transform infrared spectroscopy (FT-IR). Shielding properties of the composites against thermal and Cf-252 fast neutron were measured. Factors affecting the shielding properties were investigated. Energy deposition, absorbed dose and half value layers of the composites against neutron penetration were simulated by Monte Carlo method, and a simulated function was obtained. The results showed that the composites were compact and the particles of ores were homogeneous. Ascending boron mole numbers per unit volume (nB) in the composites can obviously enhance the macroscopic absorbing cross section (Σthermal) and improve the shielding properties for thermal neutron. The relationship of Σthermal and nB follows the equation of Σthermal=0.218+450.490nB. And the relationship of average atomic number (Z) of boron containing ores composites and the macroscopic removal cross section for fast neutron follows the equation of Σremoval=0.042exp (-Z/5.70)+0.032. Enhancement of the shielding abilities against Cf-252 fast neutron can be achieved by using the composites with low average atomic number.

Optical properties of lead phosphate glasses

1994 ◽  
Vol 167 (1-2) ◽  
pp. 122-126 ◽  
Author(s):  
C. Dayanand ◽  
R.V.G.K. Sarma ◽  
G. Bhikshamaiah ◽  
M. Salagram
Keyword(s):  
Optical Properties ◽  
Phosphate Glasses ◽  
Lead Phosphate

scholarly journals Gamma, Fast Neutron, Proton, and Alpha Shielding Properties of Borate Glasses: A Closer Look on Lead (II) Oxide and Bismuth (III) Oxide Reinforcement

2021 ◽  
Vol 11 (15) ◽  
pp. 6837
Author(s):  
Ghada ALMisned ◽  
Huseyin O. Tekin ◽  
Esra Kavaz ◽  
Ghaida Bilal ◽  
Shams A.M. Issa ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Metal Oxide ◽  
Gamma Radiation ◽  
Fast Neutron ◽  
Effective Atomic Number ◽  
Mean Free Path ◽  
Oxide Glass ◽  
Borate Glasses ◽  
Radiation Attenuation ◽  
Shielding Properties

The purpose of this research was to investigate the shielding characteristics of high-amount heavy metal oxide and Eu3+-activated borate glasses based on 10La2O3–50HMO–(40–x) B2O3–xEu2O3 (x = 0, 0.5, 1, 2, and HMO = PbO, Bi2O3). Critical gamma radiation attenuation characteristics, particularly mass attenuation coefficients of investigated heavy metal oxide glass samples, were determined using Monte Carlo simulations and the Phy-x/PSD software. Following that, we looked at the half-value layer, mean free path, effective atomic number, and build-up factors across a broad energy range (0.015–15 MeV). According to the study’s results, the addition of Eu2O3 enhanced the mass attenuation coefficient and effective atomic number, while reducing the half-value layer, mean free path, and accumulation factors. In terms of gamma radiation attenuation, the LBi50BEu glass system surpassed the LPb50BEu glass system in terms of overall shielding properties against nuclear radiation. Additionally, the heavy metal oxide glass’ efficacy as a neutron shield was determined using fast neutron removal cross-sections (ΣR). LBi50BEu2 glass was shown to be more effective in preventing the penetration of charged particle radiation.

Effect of HAF carbon black on curing, mechanical, thermal and neutron shielding properties of natural rubber - Low-density polyethylene composites

2021 ◽  
Vol 141 ◽  
pp. 103940
Author(s):  
T.A. Sajith ◽  
K.M. Praveen ◽  
Sabu Thomas ◽  
Zakiah Ahmad ◽  
Nandakumar Kalarikkal ◽  
...  
Keyword(s):  
Carbon Black ◽  
Natural Rubber ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Neutron Shielding ◽  
Shielding Properties ◽  
Polyethylene Composites

Spectroscopic studies of lithium phosphate, lead phosphate and zinc phosphate glasses containing TiO2: Effect of gamma irradiation

2013 ◽  
Vol 1035 ◽  
pp. 209-217 ◽  
Author(s):  
N.A. Ghoneim ◽  
A.M. Abdelghany ◽  
S.M. Abo-Naf ◽  
F.A. Moustafa ◽  
Kh.M. ElBadry
Keyword(s):  
Gamma Irradiation ◽  
Zinc Phosphate ◽  
Spectroscopic Studies ◽  
Phosphate Glasses ◽  
Lead Phosphate ◽  
Lithium Phosphate
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