Light to radiation field coincidence test

Description

Radiation to Light Field Coincidence analysis for symmetric and asymmetric fields requires a fiducial marker within the light field. A phantom like the RIT L-Rad, IsoAlign or IBC II is recommended, but not required.

The analysis uses this centrally located fiducial marker to determine where the edge of the light field is located, and then calculates the FWHM of the radiation field at several locations. The analysis in this routine corresponds to the recommendations of AAPM Task Group TG40 and TG142.

Provides misalignment results for all sizes and FWHM.