Orientational effect of the texture of a carbon-nanotube film on CKα a radiation intensity

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Abstract

The angular dependence of the intensity of CKα radiation measured from a film of oriented carbon nanotubes shows an increase in the yield of x-ray fluorescence along the growth direction of the nanotubes. The angular distribution of the intensity of scattered x rays is close in magnitude to the angular distribution of the directivity of nanotubes in the film that is determined by analyzing an electron-microscope image. To explain the propagation of radiation along the nanotubes, two mechanisms are proposed on the basis of reflection from inner walls of a tube (channeling) and an anomalous dispersion of CKα photons in the carbon medium.

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Translated from Pis’ma v Zhurnal Éksperimental’no \(\overset{\lower0.5em\hbox{\(\smash{\scriptscriptstyle\smile}\)}}{l}\) i Teoretichesko \(\overset{\lower0.5em\hbox{\(\smash{\scriptscriptstyle\smile}\)}}{l}\) Fiziki, Vol. 81, No. 1, 2005, pp. 37–42.
Original Russian Text Copyright © 2005 by Okotrub, Dabagov, Kudashov, Gusel’nikov, Kinloch, Windle, Chuvilin, Bulusheva.