Table 3: Relative absorbed dose values in the plateau region for the X axis.

Field size

(cm2)

Plateau

(cm)

Relative absorbed dose (%)

average

maximum

5 × 5

3.0

93.87 ± 1.94*

96.42

3 × 3

2.0

89.19 ± 3.09

92.34

2 × 2

1.5

75.01 ± 3.22

78.68

1 × 1

0.5

65.90 ± 1.35

68.19

*Standard deviation