Table 4.

Gamma analysis passing rates (%), measured vs. calculated, for the simple arcs.

	${\mathit{\text{Delta}}}^4$		ArcCHECK
Field Size (cm2)	$\gamma (3/3)\le 1$	$\gamma (2/2)\le 1$	$\gamma (3/3)\le 1$	$\gamma (2/2)\le 1$
$5\times 25$	100.0	100.0	97.6	86.1
$10\times 25$	100.0	99.7	86.4	62.6
$25\times 25$	100.0	100.0	5.8	0.0