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http://hdl.handle.net/2248/5566
Title: | X-ray attenuation coefficient of mixtures: Inputs for dual-energy CT |
Authors: | Haghighi, R. R Chatterjee, S Vyas, A Pratik Kumar Thulkar, S |
Keywords: | X-ray attenuation Dual energy CT Compton effect Photoelectric effect |
Issue Date: | Oct-2011 |
Publisher: | American Association of Physicists in Medicine |
Citation: | Medical Physics, Vol. 38, No. 10, pp. 5270-5279 |
Abstract: | The attenuation coefficient, μ(E) of substances, at any energy (E) of the x-ray photon, is known to depend on the electron density (ρe) and the effective atomic number (Zeff) of the material. While the dependence on ρe is known to be linear, that of Zeff is found to follow a power law (Zeff)x which makes it very sensitive to the index “x”. Several different values, lying between 3 and 4 have been suggested for the exponent x, in the existing literature. The purpose of the present investigations is to ascertain empirically the value that should be assigned to x. |
Description: | Restricted Access |
URI: | http://hdl.handle.net/2248/5566 |
Appears in Collections: | IIAP Publications |
Files in This Item:
File | Description | Size | Format | |
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X-ray attenuation coefficient of mixtures.pdf Restricted Access | Restricted Access | 1.31 MB | Adobe PDF | View/Open Request a copy |
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