Figure 1
From: Self-absorption correction on 2D X-ray fluorescence maps
Absorption geometry for scanning XRF mapping. (a) A local region of a sample illuminated by a focused X-ray beam produces fluorescence emission in all directions. A portion of the emitted fluorescence photons is collected by a detector. The orange-shaded area indicates the sample volume responsible for attenuating the detected XRF signals. (b) Representation of voxels illuminated by the incidence X-ray beam at location p and the detection of the fluorescence photons by the detector through the sample volume. Voxel q represents a local volume of the sample contributing to the absorption of the fluorescence photons. (c) the angular description between the emitter of the fluorescence photons along the beam path and an arbitrary voxel within the sample responsible for absorption.
