We use this construct, as opposed to the linear attenuation coefficient, because generally the absolute value of the measured attenuation coefficient cannot be relied upon.
The first thing to note is the y-axis scale and units, here we use voxel optical density (VOD): where μvoxel is the voxel linear attenuation coefficient and tvoxel is the voxel size, as such VOD is a dimensionless quantity.
Gamma -ray shielding behaviour (GSB) of a material can be ascertained from its linear attenuation coefficient (μ, cm−1).
The results showed that increasing the barite and hematite aggregates, either in separated or mixed form, increases the linear attenuation coefficient and 28-day compressive strength.
Known relationships describing the dependence of the linear attenuation coefficient on the radius and the index of refraction of the spherulite can be applied in evaluations.
Water cement ratio, cement quantity, volume ratio of lead-slag aggregate and silica fume quantity were selected as control factors and slump, compressive strength and gamma linear attenuation coefficient were considered as the quality responses.
Use of a monoenergetic X-ray beam, as provided by the synchrotron facility, generates accurate 3D maps of the linear attenuation coefficient within the sample and hence gives the ability to map different chemical components.
A lecture key for the interpretation of the tomographic images is proposed, based on the relationship between the linear attenuation coefficient μ-function of the density and elemental composition of each mineral phase- and the corresponding grey tone experimentally observed.
It has been observed that among the selected concretes, steel magnetite offers maximum value for linear attenuation coefficient, mass attenuation coefficient, equivalent atomic number and least values in terms of penetration depth equivalent to mean free path and exposure buildup factors.
linear attenuation coefficient, mass attenuation coefficient, penetration depth, equivalent atomic number, exposure buildup factor have been computed for seven different concretes (ordinary, hematite serpentine, ilmenite limonite, basalt magnetite, ilmenite, steel-scrap and steel magnetite) in the energy region of 0.015 15.0 MeV.
In this short communication, based on the additivity of X-ray linear attenuation coefficient, a method to deduce the solid calcium distributions is proposed, and the solid calcium distributions of different calcium leached cement paste specimens are given using the micro-tomography data.
