Outstanding X-ray shielding effects of carbon nanotubes
نویسندگان
چکیده
[Abstract] We report an outstanding phenomenon related to the X-ray attenuation induced by carbon nanotubes (CNTs). We observed that the mass attenuation coefficient of CNTs was significantly higher (> 100%) than that observed for highly oriented pyrolytic graphite (HOPG) and fullerenes (C60). The attenuation coefficient of CNTs increased by reducing the sample thickness. This attenuation phenomenon could not be explained by the conventional particle theory or approximated wave equations, and an alternative theoretical explanation now needs to be formulated. In order to demonstrate the effect of CNTs, we coated a textile fabric with a thin film of CNTs and found an enhanced X-ray attenuation of 70%. Therefore, CNT materials could now be used in the fabrication of lightweight and efficient X-ray safety equipment and devices.
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تاریخ انتشار 2012