Table 2.

Point dose differences in the 10 × 10 cm² open field at 100 cm and 105 cm SSD in the Plastic water phantom. Note the depths of measurements are 1, 2, 2, and 3 cm for the 6, 9, 12, and 15 MeV electron energies, respectively

		% Point dose differences
Description	Cone size	6 MeV	9 MeV	12 MeV	15 MeV
100 cm SSD	10 × 10 cm2	−0.3	0.2	−0.3	0.9
105 cm SSD	10 × 10 cm2	−1.5	0.7	1.7	0.9