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. Author manuscript; available in PMC: 2011 Mar 25.
Published in final edited form as: Phys Med Biol. 2009 Jul 27;54(16):4889–4905. doi: 10.1088/0031-9155/54/16/004

Figure 3.

Figure 3

The calculated macroscopic dose enhancement factor (MDEF) for 125I cases as a function of radial distance along the transverse axis of the source. The factors shown from r = 2 to 10 cm are not the MDEFs but show the decrease in the doses behind the tumor loaded with gold nanoparticles. The radius of a spherical tumor centered at the origin is 1.5 cm. The statistical uncertainty (1σ) of each data point is comparable to the size of the symbols. The amount of gold shown in the figure legend is per gram of tumor or tissue.