Figure 7. Backscatter factors calculated by MCNP for water (
) and PMMA (
) phantoms using a field of diameter 20 cm, an accelerating potential of 110 kVp and the geometry in Figure 6.
Figure 7. Backscatter factors calculated by MCNP for water () and PMMA () phantoms using a field of diameter 20 cm, an accelerating potential of 110 kVp and the geometry in Figure 6.