Dose Course 2018_Flipping book

2D detector’s comparison: spatial-dose resolution

1%

Lateral resolution test

Longitudinal resolution test

Dose difference

Combined dose and spatial resolution test regions

+25% +40% -12.5% -25%

+30% +20%

10%

3mm

15mm

Single gantry test fields for resolution and sensitivity assessment. (left) the sensitivity test, and (right) the resolution test. In the resolution test the values in the lower half represent difference in % dose between the regions and the background (lime green) area.