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Image of additional dose deposited to the vascular wall for three treatment depths for 6 MV photons, PDD100 (a) and (b), PDD80 (c) and (d), and PDD50 (e) and (f). Two GNP distributions are shown: (a)–(f) GNPs are homogeneously distributed in the vessel and (g) and (h) GNPs constrained to the inner vascular wall of the lumen. The GNP blood concentration is 20 Au-mg/g and the prescribed dose is 30 Gy. The diameter of the vessel is 8 μm.
