a-Se Detector (24×29, 140 μm)
The defining — and most expensive — component on any Selenia Dimensions. Amorphous selenium flat panel, 24×29 cm imaging area, 140 μm pixel pitch.
Fits
- Selenia Dimensions
- Hologic 3Dimensions (newer panel revs)
- Hologic Selenia (older panel revs)
Diagnosis
- Dead pixel clusters growing exam-over-exam → end-of-life
- Ghosting / image lag → panel aging
- Uniform SNR loss → whole-panel calibration, then replacement