Siemens MAMMOMAT Inspiration - AEC Test Performance Criteria

Test 1: AEC Test
18 Quality Control Manual
SPB7-330.640.01.01.02
Performance Criteria and Corrective Action
The AEC security cut-off mechanism shall work properly in such a way that in cases
where no radiation reaches the detector no tube load beyond 5 mAs can be delivered.
The AEC segmentation should be able to select an AEC region that:
- completely remains inside the shadow of the PMMA plates, and
- whose borders are close to the ones of the PMMA.
The coefficient of variation for the mean pixel values should not exceed 5 % when
going through all PMMA thicknesses.
The maximum relative deviation for the mean pixel values should not exceed 10 %
when going through all PMMA thicknesses.