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. 2010 Jun 30;5:61. doi: 10.1186/1748-717X-5-61

Figure 4.

Figure 4

Results of the pinpoint ionization chamber array measurements. Shown are the projections of the beam tracking data measured by the ionization chambers. Data points are relative to the stationary reference irradiation. The dashed line indicates the nominal dose level; the two dotted horizontal lines indicate the 5% acceptance level, the shaded area indicates the target volume.