Figure 2
From: PEPI Lab: a flexible compact multi-modal setup for X-ray phase-contrast and spectral imaging
The four imaging modalities, namely photon-counting (a), spectral (b), single-mask EI (c), and double-mask EI (d). In (e) a typical X-ray spectrum used in photon-counting CT, in (f) the spectral response of the Pixirad-1/Pixie-III over the 2 selected energy bins optimized for the iodine K-edge (filled plots), expressed in counts per input photon per keV, along with the X-ray spectrum (dashed line). X-ray spectra are area normalized. In (e) and (f) the typical IC shapes for the single and double mask arrangements, respectively.
