Mechanical and Gamma Ray Absorption Behavior of PbO-WO3-Na2O-MgO-B2O3 Glasses in the Low Energy Range.

Aljawhara H Almuqrin,O I Olarinoye,Ashok Kumar,Norah Alwadai,Badriah Albarzan,M I Sayyed

doi:10.3390/ma14133466

Abstract

The Makishima and Mackenzie model has been used to determine the mechanical properties of the PbO-WO3-Na2O-MgO-B2O3 glass system. The number of bonds per unit volume of the glasses (nb) increases from 9.40 × 1022 to 10.09 × 1022 cm−3 as the PbO content increases from 30 to 50 mol%. The Poisson’s ratio (σ) for the examined glasses falls between 0.174 and 0.210. The value of the fractal bond connectivity (d) for the present glasses ranges from 3.08 to 3.59. Gamma photon and fast neutron shielding parameters were evaluated via Phy-X/PSD, while that of electrons were calculated via the ESTAR platform. Analysis of the parameters showed that both photon and electron attenuation ability improve with the PbO content. The fast neutron removal cross section of the glasses varies from 0.094–0.102 cm−1 as PbO molar content reduced from 50–30 mol%. Further analysis of shielding parameters of the investigated glass system showed that they possess good potential to function in radiation protection applications.

Highlights

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As a result of the frequent and continuous use of such devices, workers in medical facilities are exposed to direct exposure to ionizing radiation, and this becomes a real threat to the safety of the workers [2]
It is well known that this direct exposure to radiation is not limited only to workers in medical facilities, and to the patients who undergo medical diagnosis in nuclear medicine

Summary

Introduction

It can be said that reducing the time of exposure to the radiation as well as increasing the distance between the radioactive source and the workers lead to reduce the unwanted effects of radiation well. Sometimes these two factors cannot be well controlled, and it becomes necessary to use certain materials that have the ability to absorb the radiation and mitigate the negative effects of radiation. Such materials, which are widely used in nuclear and radiological fields, are called radiation shielding materials [3,4,5,6,7]

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