J Med Phys Close
 

Figure 6: Data from Reft et al. (2006)[58] shows the difference between linac models in terms of out-of-field dose for 18-MV IMRT of the prostrate. In vivo measurements were undertaken measuring both photon (solid) and neutron (cross-hatched) doses; the data shown here corresponds to doses at a distance of 20 cm from the field edge. Measurements were performed for the same-model accelerator at different centers (reflected by the number n)

Figure 6: Data from Reft et al. (2006)<sup>[58]</sup> shows the difference between linac models in terms of out-of-field dose for 18-MV IMRT of the prostrate. In vivo measurements were undertaken measuring both photon (solid) and neutron (cross-hatched) doses; the data shown here corresponds to doses at a distance of 20 cm from the field edge. Measurements were performed for the same-model accelerator at different centers (reflected by the number n)