Effect of particle size, filler loadings and x-ray tube voltage on the transmitted x-ray transmission in tungsten oxide—epoxy composites

The effect of particle size, filler loadings and x-ray tube voltage on the x-ray transmission in WO3-epoxy composites has been investigated using the mammography unit and a general radiography unit. Results indicate that nano-sized WO3 has a better ability to attenuate the x-ray beam generated by lo...

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Bibliographic Details
Published in:Applied radiation and isotopes 2013-01, Vol.71 (1), p.62-67
Main Authors: Noor Azman, N.Z., Siddiqui, S.A., Hart, R., Low, I.M.
Format: Article
Language:English
Subjects:
Electric potential
Epoxy Compounds - chemistry
Filler loading
Fillers
Micro-sized WO3-epoxy composites
Nano-sized WO3-epoxy composites
Nanostructure
Oxides - chemistry
Particle Size
Transmission
Tungsten - chemistry
Tungsten oxides
Voltage
X-ray tube voltage
X-ray tubes
X-Rays
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Summary:The effect of particle size, filler loadings and x-ray tube voltage on the x-ray transmission in WO3-epoxy composites has been investigated using the mammography unit and a general radiography unit. Results indicate that nano-sized WO3 has a better ability to attenuate the x-ray beam generated by lower tube voltages (25–35kV) when compared to micro-sized WO3 of the same filler loading. However, the effect of particle size on x-ray transmission was negligible at the higher x-ray tube voltages (40–120kV). ► Investigated the effect of particle size of WO3 on the x-ray attenuation ability. ► Nano-sized WO3 has a better ability to attenuate lower x-ray energies (22–49kVp). ► Particle size has negligible effect at the higher x-ray energy range (40–120kVp).
ISSN:0969-8043
1872-9800
DOI:10.1016/j.apradiso.2012.09.012