Exploring the impact of Bi2O3 particle size on the efficacy of dimethylpolysiloxane for medical gamma/X-rays shielding applications

被引：7
作者：
Almuqrin, Aljawhara H. [1 ]
Sayyed, M. I. [2 ,3 ]
Khandaker, Mayeen Uddin [4 ,6 ]
Elsafi, Mohamed [5 ]
机构：
[1] Princess Nourah Bint Abdulrahman Univ, Coll Sci, Dept Phys, POB 84428, Riyadh 11671, Saudi Arabia
[2] Isra Univ, Fac Sci, Dept Phys, Amman, Jordan
[3] Univ Tabuk, Renewable Energy & Environm Technol Ctr, Tabuk 47913, Saudi Arabia
[4] Sunway Univ, Sch Engn & Technol, Appl Phys & Radiat Technol Grp, CCDCU, Bandar Sunway 47500, Selangor Darul, Malaysia
[5] Alexandria Univ, Fac Sci, Phys Dept, Alexandria 21511, Egypt
[6] Daffodil Int Univ, Fac Grad Studies, Dhaka 1216, Bangladesh
来源：
RADIATION PHYSICS AND CHEMISTRY | 2024年 / 220卷
关键词：
Dimethylpolysiloxane; Gamma-rays; Half value layer; Radiation shielding efficeny; Bi2O3-MPs; Bi2O3-NPs;
D O I：
10.1016/j.radphyschem.2024.111629
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
In this work, the effect of the particle size range on dimethylpolysiloxane (DMPS) on the attenuation properties was investigated. The control sample was prepared consisting of 50% DMPS+50% Bi2O3-MPs and referred (DMPS-Bi2O3)(50m). Microparticles (MPs) were gradually replaced by Nanoparticles (NPs) to fabricate five samples coded by (DMPS-Bi2O3)(40m10n), (DMPS-Bi2O3)(30m20n), (DMPS-Bi2O3)(25m25n), (DMPS-Bi2O3)(20m30n), (DMPS-Bi2O3)(10m40n), and (DMPS-Bi2O3)(50n). The LAC "Linear attenuation coefficient" was determined at different energies including low and high energies for all prepared composites using an experimental gamma ray measurements and acquisition system. The HPGe detector and various point sources (Co-60, Cs-137 and Am-241) was used in the experimental technique. The LAC of control sample was evaluated by XCOM-software and compared to the experimental values to verify the accuracy of the experimental results. The other attenuator parameters (Half (HVL) and Tenth (TVL) value layer and mean free path (MFP) as well as Radiation shielding efficiency (RSE)) have been calculated. The highest LAC of the prepared polymer composites was (DMPS-Bi2O3)(25m25n) while the lowest LAC observed for control sample (DMPS-Bi2O3)(50m) at all discussed energies. The HVL of (DMPS-Bi2O3)(25m25n) < (DMPS-Bi2O3)(20m30n <) (DMPS-Bi2O3)(30m20n) < (DMPS-Bi2O3)(10m40n) < (DMPS-Bi2O3)(40m10n) < (DMPS-Bi2O3)(50n) < (DMPS-Bi2O3)(50m) at all discussed experimental energies.
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页数：6
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