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. Author manuscript; available in PMC: 2008 Apr 11.
Published in final edited form as: Med Phys. 2007 Feb;34(2):419–435. doi: 10.1118/1.2401042

Fig. 14.

Fig. 14

Top: Broadening in depth of the average width (squares: measurement, stars: simulation) of lateral profiles axially sampled in the interval [−15, 15] mm from the center of the distributions at each depth. Bottom: Example of measured (solid) and simulated (dashed) activity profile at the isocenter (65 mm depth) for the entire 60 min (thick) or only the last 20 min (thin, scaled by 2.29) acquistion. The arrows mark the 50% falloff position. The dash-dotted line shows the predicted dose profile (divided by 5).