The unique, patent pending technique for energy constancy determination in x-ray (Co60-25 MV) and electron (4-22 MeV) beams utilizes an optional special plate for each of the two beam qualities.
Eight chambers go inside with specific attenuators that are embedded in the plate when it is placed on StarTrack. A special algorithm utilizes ratios of signals from the chambers, appropriate for the energy being checked, to verify the energy constancy.
This novel design allows for the simultaneous determination of energy constancy as well as primary and diagonal profiles.