X-ray attenuation coefficient of mixtures: Inputs for dual-energy CT

dc.contributor.author	Haghighi, R. R
dc.contributor.author	Chatterjee, S
dc.contributor.author	Vyas, A
dc.contributor.author	Pratik Kumar
dc.contributor.author	Thulkar, S
dc.date.accessioned	2011-09-13T16:50:10Z
dc.date.available	2011-09-13T16:50:10Z
dc.date.issued	2011-10
dc.identifier.citation	Medical Physics, Vol. 38, No. 10, pp. 5270-5279	en
dc.identifier.uri	http://hdl.handle.net/2248/5566
dc.description	Restricted Access	en
dc.description.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.	en
dc.language.iso	en	en
dc.publisher	American Association of Physicists in Medicine	en
dc.relation.uri	http://dx.doi.org/10.1118/1.3626572	en
dc.rights	© American Association of Physicists in Medicine	en
dc.subject	X-ray attenuation	en
dc.subject	Dual energy CT	en
dc.subject	Compton effect	en
dc.subject	Photoelectric effect	en
dc.title	X-ray attenuation coefficient of mixtures: Inputs for dual-energy CT	en
dc.type	Article	en