Table III.

Calculated and measured EDWF for field geometry A, 18 MV photons.

	$-1\hspace{0.17em}\text{cm}$			Center of field (0cm)			+1cm
EDW angle	Calc.	Meas.	% diff.	Calc.	Meas.	% diff.	Calc.	Meas.	% diff.
10	0.977	0.978	0.10	0.985	0.984	$-0.10$	0.992	0.991	$-0.10$
15	0.967	0.968	0.10	0.977	0.977	0.00	0.988	0.989	0.10
20	0.955	0.958	0.31	0.969	0.969	0.00	0.984	0.982	$-0.20$
25	0.943	0.943	0.00	0.961	0.961	0.00	0.980	0.979	$-0.10$
30	0.930	0.931	0.11	0.952	0.953	0.11	0.975	0.973	$-0.21$
45	0.883	0.886	0.34	0.919	0.920	0.11	0.958	0.955	$-0.31$
60	0.810	0.810	0.00	0.868	0.866	$-0.23$	0.932	0.924	$-0.86$