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Open Access Enhanced X-Ray Shielding Effects of Carbon Nanotubes

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We report an explicit phenomenon related to the X-ray attenuation inherent to carbon nanotubes (CNTs). We observed that the mass attenuation coefficient of CNTs was significantly higher than that observed for highly oriented pyrolytic graphite (HOPG) and fullerenes (C60) by 20–50%. The attenuation coefficient of CNTs increased by reducing the sample thickness. This attenuation phenomenon indicates the importance of the unique nanoscale morphology of CNTs, which cannot be interpreted by the already established X-ray absorption theory. In order to demonstrate the effect of CNTs, we coated a textile fabric with CNTs and found an enhanced X-ray attenuation of 70% (textile thickness of 25 mm). Therefore, CNT materials could now be used in the fabrication of light-weight and efficient X-ray safety equipment and devices.

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Keywords: CARBON NANOTUBES; CYLINDRICAL TUBE-LIKE STRUCTURE; X-RAY ATTENUATION COEFFICIENT

Document Type: Research Article

Publication date: December 1, 2011

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  • Materials Express is a peer-reviewed multidisciplinary journal reporting emerging researches on materials science, engineering, technology and biology. Cutting-edge researches on the synthesis, characterization, properties, and applications of a very wide range of materials are covered for broad readership; from physical sciences to life sciences. In particular, the journal aims to report advanced materials with interesting electronic, magnetic, optical, mechanical and catalytic properties for industrial applications.
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