Field size

Relative error at 6MV

Relative error at 15MV

cm × cm

((cc13 - cc01)/cc13) × 100

((cc13 - cc01)/cc13) × 100

1

−22.891

−7.473

2

−5.041

−4.417

3

0.911

−2.462

4

1.248

−2.516

5

0.955

−1.753

6

0.836

−0.555

7

0.764

−0.323

8

0.486

0.000

9

0.277

−0.014

10

0.005

0.000

12

0.233

0.010

15

−0.018

−0.076

20

−0.294

−0.167