1D Flatness 9050

Returns the ratio of the length of the 90% isodose over the length of the 50% isodose, with the dose normalized at 100% at beam center.:

\[100 \cdot \cfrac {FW_{90\%}} {FW_{50\%}}\]

where (FW_90%) and (FW_50%) are the distances between the 90% and 50% isodose lines respectively.

Protocol invocation name: 1D Flatness 9050