Computed Tomography to Estimate the Representative Elementary Area for Soil Porosity Measurements

<table>Experimental relationship between the tomographic units (TU) of the images obtained by the tomograph and linear attenuation coefficients (<i>μ</i>) for homogeneous substances used during the calibration of the tomograph. The vertical error bars represent the standard deviation of the TU values in the matrix of selected data. The horizontal error bars depict the mean standard deviation (<svg height="10.9125" id="M44" style="vertical-align:-0.17555pt" version="1.1" viewbox="0 0 35.099998 10.9125" width="35.099998" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,10.9125)">
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<text transform="matrix(1,0,0,-1,-71.95,63.5)">
<tspan style="font-size: 12.50px; " x="0" y="0">𝑛</tspan>
<tspan style="font-size: 12.50px; " x="9.6773224" y="0">=</tspan>
<tspan style="font-size: 12.50px; " x="21.71771" y="0">3</tspan>
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</svg>).</table>

The Scientific World Journal

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Figure 4

Figure 4: Computed Tomography to Estimate the Representative Elementary Area for Soil Porosity Measurements 