scholarly journals The Theoretical Investigation of Chitin Doped Concretes for Gamma-ray Shielding Properties

2022 ◽  
Author(s):  
Yusuf KAVUN
Keyword(s):  
Theoretical Investigation ◽  
Gamma Ray ◽  
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.

Gamma ray shielding properties of TeO2-ZnF2-As2O3-Sm2O3 glasses

2018 ◽  
Vol 765 ◽  
pp. 451-458 ◽  
Author(s):  
D.K. Gaikwad ◽  
M.I. Sayyed ◽  
Shamsan S. Obaid ◽  
Shams A.M. Issa ◽  
P.P. Pawar
Keyword(s):  
Gamma Ray ◽  
Shielding Properties

Structure, optical, gamma-ray and neutron shielding properties of NiO doped B2O3–BaCO3–Li2O3 glass systems

2020 ◽  
Vol 46 (2) ◽  
pp. 1711-1721 ◽  
Author(s):  
M.S. Al-Buriahi ◽  
A.S. Abouhaswa ◽  
H.O. Tekin ◽  
C. Sriwunkum ◽  
F.I. El-Agawany ◽  
...  
Keyword(s):  
Gamma Ray ◽  
Neutron Shielding ◽  
Shielding Properties

Effect of different size of PbWO4 particles on EPDM composite for gamma-ray shielding

2020 ◽  
Vol 34 (07) ◽  
pp. 2050046
Author(s):  
Jinghui Fan ◽  
Juying Wu ◽  
Yan Ma
Keyword(s):  
Gamma Rays ◽  
Gamma Ray ◽  
Mechanical Test ◽  
Radiation Shielding ◽  
Reinforced Composites ◽  
Sem Images ◽  
Elongation At Break ◽  
Roll Mill ◽  
The Matrix ◽  
Shielding Properties

Ethylene Propylene Diene Monomer (EPDM) composites filled with 0–400 phr [Formula: see text] (PWO) were prepared by conventional process using a two-roll mill. Surface treatment of the fillers coated with KH570 was conducted to enhance the wettability and lubrication of fillers in the polymer matrix. According to SEM images and mechanical test, both micro- and submicro-fillers disperse homogeneously in the matrix, and adhesion of submicro-fillers to the matrix is stronger than that of micro-fillers. The submicro-PWO composites had better tensile strength and elongation at break than those composites containing micro-PWO powder, but a relatively higher hardness. The photon shielding test was performed to determine the radiation shielding properties of these composites, which showed that attenuation of gamma-rays for the submicro-PWO composites was substantially enhanced compared to micro-PWO reinforced composites.

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