Figure 1 | Scientific Reports

Figure 1

From: Iron-specific Signal Separation from within Heavy Metal Stained Biological Samples Using X-Ray Microtomography with Polychromatic Source and Energy-Integrating Detectors

Figure 1

“High” and “Low” scan configuration of a phantom containing uranium and iron aqueous solutions in microtubes. Material analysis is performed in the middle row by scatter plot material analysis and in the last row by material basis decomposition. (a) 3D volume rendering of phantom configuration. (b,c) “High” and “Low” scan slice image, at 60 kVp with 25 μm thick iron filter and 30 kVp without filtration respectively. Material concentration in [%] by weight of compound, ferric chloride or uranyl acetate, are marked in (b). Water filled microtube and air were used to calibrate the results to give values in attenuation units [cm−1]. (d) Scatter plot of “Low” vs. “High” pixel values showing “clouds” of distinct chemical composition. (e,f) Scatter plot material analysis of iron and uranium using (d), which after calibration result in density images in units of [mgFe/cc.] and [mgU/cc] for iron and uranium respectively. (g,h) Material basis decomposition results for iron and uranium.

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