Table 7.

Maximum deviation (Δmax) between measured and calculated depth‐dose curves for different combinations of energy/applicator in water phantom at $\text{SSD}=100\hspace{0.17em}\text{cm}$. The $\mathrm{\Delta }$max evaluation is separated into four groups: from 0.5 cm to depth to dmax, from dmax to depth of 80%, from depth of 80% to depth of 20%, and from depth of 20% to the end. Deviations are given in term of % dose difference, except in the gradient region (80%‐20%), where it is represented in term of distance to agreement (mm).

Energy (MeV)	Field Size (cm2)	$\mathrm{\Delta }$ max
		$0.5\hspace{0.17em}cm-d_{max}$	$d_{max}$–80%	80%–20%	20%–end
6	$6\times 6$	2.0%	2.0%	0.5 mm	2.0%
	$10\times 10$	2.0%	2.0%	0.3 mm	2.0%
	$20\times 20$	2.5%	2.5%	0.5 mm	2.0%
12	$6\times 6$	1.0%	2.0%	1.0 mm	2.5%
	$10\times 10$	0.3%	2.5%	1.0 mm	1.0%
	$20\times 20$	1.0%	2.0%	0.5 mm	1.5%
18	$6\times 6$	1.5%	1.5%	0.5 mm	0.3%
	$10\times 10$	2.0%	1.5%	1.0 mm	0%
	$20\times 20$	2.0%	1.0%	0.5 mm	0.3%