Effect of Bi2O3 particle sizes and addition of starch into Bi2O3–PVA composites for X-ray shielding

被引：0

作者：

Nurul Z. Noor Azman

Nur F. L. Musa

Nik N. A. Nik Ab Razak

Ramzun M. Ramli

Iskandar S. Mustafa

Azhar Abdul Rahman

Nor Z. Yahaya

机构：

[1] Universiti Sains Malaysia,School of Physics

[2] Universiti Sains Malaysia,School of Distance Education

来源：

Applied Physics A | 2016年 / 122卷

关键词：

Starch; PDMS; Bi2O3; High Atomic Number; Mammography Unit;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The effect of Bi2O3 particle sizes filled PVA composites on X-ray transmission for X-ray shielding purpose had been successfully fabricated and analyzed by using X-ray fluorescent spectroscopy (XRF) and mammography units with various low X-ray energy ranges. Besides, a preliminary investigation was carried out by using XRF unit to obtain the effect of starch addition into the composite on the X-ray transmissions by both particle sizes of Bi2O3–PVA composites. The results showed that the ability of the composite to attenuate the initial X-ray beam was augmented with the increased Bi2O3 weight percentage (wt%). The density of both particle sizes of Bi2O3–PVA composites was compared with the addition of 1 and 3 wt% starch, while a fluctuation of density occurred for the composites without starch. Moreover, the nano-sized Bi2O3–PVA composite without starch did not exemplify better X-ray attenuation capability compared to its micro-sized counterpart even though their density was higher than the micro-sized Bi2O3–PVA composite. However, the nano-sized Bi2O3–PVA composite with starch offered better particle size effect for X-ray shielding ability than its micro-sized counterpart compared to the Bi2O3–PVA composites without starch.

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