Table 2 The results of the validation test using a water phantom
Location | Pin. (cGy) | Mon. (cGy) | Meas. (cGy) | Pin/Mon1 | Pin/Meas2 | Mon/Meas3 | |
|---|---|---|---|---|---|---|---|
Gantry angle | IC | 153.0 | 153.6 | 153.0 | 0.39 | 0.00 | 0.39 |
0 degrees | Left | 151.7 | 151.7 | 151.8 | 0.00 | −0.07 | −0.07 |
200 MU | Bottom | 128.9 | 130.1 | 129.0 | 0.93 | −0.08 | 0.85 |
Right | 151.9 | 151.7 | 152.0 | −0.13 | −0.07 | −0.20 | |
Top | 180.8 | 180.5 | 180.5 | −0.17 | 0.17 | 0.00 | |
Gantry angle | IC | 119.2 | 120.8 | 120.3 | 1.34 | −0.91 | 0.42 |
90 degrees | Left | 99.7 | 101.0 | 100.0 | 1.30 | −0.30 | 1.00 |
200 MU | Bottom | 118.1 | 118.1 | 118.3 | 0.00 | −0.17 | −0.17 |
Right | 142.5 | 142.9 | 142.4 | 0.28 | 0.07 | 0.35 | |
Top | 117.8 | 118.0 | 118.1 | 0.17 | −0.25 | −0.08 | |
Gantry angle | IC | 152.0 | 152.8 | 152.5 | 0.53 | −0.33 | 0.20 |
180 degrees | Left | 150.5 | 150.1 | 150.3 | −0.27 | 0.13 | −0.13 |
200 MU | Bottom | 179.6 | 180.3 | 180.0 | 0.39 | −0.22 | 0.17 |
Right | 150.3 | 150.7 | 150.5 | 0.27 | −0.13 | 0.13 | |
Top | 128.1 | 129.2 | 129.0 | 0.86 | −0.70 | 0.16 |