2100EX: field size = 5 × 5 cm2, MU = 100 | ||||||
Energy | 6X | 18X | ||||
Point position | AP | PA | Lt Lat | AP | PA | Lt Lat |
Effective depth (cm) | 9.8 | 12.2 | 9.2 | 9.8 | 12.2 | 9.2 |
CC Convolution (cGy) in Pinnacle | 70.9 | 65.4 | 72.1 | 86.9 | 82.7 | 87.4 |
Measurement with ion chamber (cGy) | 72.3 | 64.0 | 72.7 | 89.0 | 82.7 | 89.0 |
%Diff from measurement | −1.8 | 2.3 | −0.6 | −2.4 | 0.0 | −1.8 |
Measurement with film (cGy) | 72.6 | 64.5 | 73.5 | 85.4 | 81.2 | 88.2 |
%Diff from measurement | 2.4 | −1.4 | 1.9 | −1.7 | −1.8 | 0.9 |
Tolerance | 3% |