Fig. 8.

Visualization of the effective atomic number map (a), the iodine map (b), the virtual unenhanced image (c), and virtual monoenergetic images for three different energies (d–f) using GBPC-CT. The materials are depicted in Fig. 1 next to the attenuation coefficient and refractive index, which is proportional to the electron density. The representation of this data is based on dual-energy CT. Figure adapted from Braig et al. [80]. This figure is licensed under the Creative Commons Attribution (CC BY)