Enhanced x-ray shielding effects of carbon nanotubes

Toshihiko Fujimori; Shuji Tsuruoka; Bunshi Fugetsu; Shigeo Maruyama; Akihiko Tanioka; Mauricio Terrones; Mildred S. Dresselhaus; Morinobu Endo; Katsumi Kaneko

doi:10.1166/mex.2011.1043

Enhanced x-ray shielding effects of carbon nanotubes

Toshihiko Fujimori, Shuji Tsuruoka, Bunshi Fugetsu, Shigeo Maruyama, Akihiko Tanioka, Mauricio Terrones, Mildred S. Dresselhaus, Morinobu Endo, Katsumi Kaneko

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29 Scopus citations

Abstract

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.

Original language	English (US)
Pages (from-to)	273-278
Number of pages	6
Journal	Materials Express
Volume	1
Issue number	4
DOIs	https://doi.org/10.1166/mex.2011.1043
State	Published - 2011

All Science Journal Classification (ASJC) codes

General Materials Science

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10.1166/mex.2011.1043

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title = "Enhanced x-ray shielding effects of carbon nanotubes",

abstract = "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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T1 - Enhanced x-ray shielding effects of carbon nanotubes

AU - Fujimori, Toshihiko

AU - Tsuruoka, Shuji

AU - Fugetsu, Bunshi

AU - Maruyama, Shigeo

AU - Tanioka, Akihiko

AU - Terrones, Mauricio

AU - Dresselhaus, Mildred S.

AU - Endo, Morinobu

AU - Kaneko, Katsumi

PY - 2011

Y1 - 2011

N2 - 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.

AB - 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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Enhanced x-ray shielding effects of carbon nanotubes

Abstract

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