Figure 4.

The dose ratio values in the inhomogeneous to the homogeneous phantoms vs. distance ($\mathrm{g}/{\text{cm}}^2$) for the 30, 50, and 70 keV photons of the eBT, 380 keV IRHDRS, and 6 MeV EEBRT. The bone thickness is 0.5 cm according to Fig. 2(a). For the distance from 0 to $2 \mathrm{g}/{\text{cm}}^2$, the figure is zoomed in the upper corner of the graph.