The influence of heavy elements on the ionizing radiation shielding efficiency and elastic properties of some tellurite glasses: Theoretical investigation

A.M.A Mostafa,Shams A.M Issa,Hesham M.H Zakaly,M.H.M Zaid,H.O Tekin,K.A Matori,H.A.A Sidek,Reda Elsaman

doi:10.1016/j.rinp.2020.103496

Abstract

The impact of adding PbO and WO3 on the mechanical properties and radiation shielding efficiency of 4 different glass samples labeled as TWP1, TWP2, TWP3, and TWP4 (samples codes) was studied via the Makishima and Mackenzie model (MMD), Rocherulle model (RD), XCOM database, FLUKA code, and Phys-X/PSD software. According to MMD, Young's (Y), bulk (K), shear (G) modulus values increase from 59.13 to 62.80 GPa, from 37.76 to 43.86 GPa, from 25.48 to 26.55 GPa, and from 71.73 to 79.26 GPa for TWP1 and TWP4 glasses, respectively. 277.833, 358.768, 465.048 and 570.786 cm−1 values are the highest linear attenuation coefficient (μ) values for TWP1, TWP2, TWP3 and TWP4 glasses at 0.015 MeV. The results refer that the TWP4 glass sample has the highest radiation shielding and mechanical properties. The results indicated that the addition of lead and tungsten to the investigated samples improves their elastic and radiation shielding properties. Thus, the TWP4 sample is the best compared to the other glass samples.

Highlights

The continued development in various fabrications and technologies requests the utilization of more ionizing radiations
It is observed that the TWP4 sample has great μm value as compared to other glass samples that conclude the predominant impact of WO3 and PbO concentration
At 1.5 MeV, 0.04841, 0.04920 and 0.04831 cm2/g are the μm values achieved for TWP4 glass using NISTXCOM [51], Phy-X/PSD, and FLUKA code, respectively

Summary

Introduction

The continued development in various fabrications and technologies requests the utilization of more ionizing radiations. The staffs working in the fields that use radiation sources are every day exposed to various kinds of ionizing radiation and besides confrontation large hazards to their life [6]. Gamma has high penetration power in materials due to their zero mass and charge. For the protection from hurtful radiation exposures, many investigators have fabricated different types of shielding materials [9,10,11]. One of these materials is concrete which is used to protect the staff from hurtful exposure to radiation. Nowadays the concretes are not preferred and have been changed by other useful materials [12,13]

Objectives

Methods

Results

Conclusion