2D Uniformity ICRU 72

Returns the maximum difference between the max and the min of the In Field Area normalised to the average of the IFA according to ICRU 72 eq 3.2.

\[{(max-min)} \cdot \cfrac {100} {ave}\]

Where max and min are the IFA maximum and minimum respectively and ave is the average value of the IFA.

Protocol invocation name: 2D Uniformity ICRU 72

The max and min may be affected by the set window levels.