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Total attenuation coefficients (in millimeters−1) of (a) MWNTs, (b) SWNTs, and (c) SWNHs in water for varying concentration (0.01–0.1 mg/ml), (d) attenuation coefficients of MWNTs, SWNHs, and SWNTs in water compared for a concentration of 0.1 mg/ml, absorption and attenuation coefficient of (e) MWNTs, (f) SWNTs, and (g) SWNHs for a CNT concentration of 0.1 mg/ml, and (h) total attenuation coefficient of all three types of CNTs as a function of concentration.
