Table 1.

Surface dose measurements normalized to the dose at ${\mathrm{d}}_{max}$ of $10\times 10\hspace{0.17em}{\text{cm}}^2$. Values are percents.

	6x	18x
Surface of $10\hspace{0.17em}\times \hspace{0.17em}10\hspace{0.17em}{\text{cm}}^2$	$18.3\pm 0.9$	$12.5\pm 0.6$
Average Hole Dose at Surface (A,C,F,H,J)	$27.1\pm 1.7$	$19.9\pm 1.2$
Average (Near) Blocked Dose at Surface (D,E)	$6.7\pm 0.3$	$12.9\pm 1.3$
Average (Far) Blocked Dose at Surface (G,I)	$7.1\pm 1.0$	$12.8\pm 1.1$