1D Symmetry AreaΒΆ

The area symmetry is the normalised difference between the right and left areas under the profile up to the right and left field edges:

\[100 \cdot \cfrac {RA-LA} {RA + LA}\]

Where RA and LA are the areas under the profile from the field centre to the right and left field edge respectively.

Protocol invocation name: 1D Symmetry Area

Note In contrast with other symmetry calculations the area symmetry is not affected by the detector centre.

Note Some commercial programs use a mulitplicative factor of 200.