Table 2.

The difference in dose between the planned and measured doses are shown for different field sizes and phantom thicknesses. The dose differences (Δ_dose (%)) are show for flattened and FFF beams.

	$4\hspace{0.17em}cm\times 4\hspace{0.17em}cm$		$10\hspace{0.17em}cm\times 10\hspace{0.17em}cm$		$20\hspace{0.17em}cm\times 20\hspace{0.17em}cm$
Field Size	6 MV	6 MV FFF	6 MV	6 MV FFF	6 MV	6 MV FFF
12 cm	‐3.5	+0.2	+0.1	‐0.1	+1.0	+2.1
24 cm	‐0.4	+0.8	+0.1	+0.1	‐0.6	‐0.6
36 cm	‐2.5	+0.9	‐0.3	+0.4	‐3.1	‐5.2