Detector | PN RM-PRD-01702

The flat-panel amorphous selenium detector is the core imaging component of the Dimensions system, converting X-ray photons into digital signals. It directly determines image resolution, DQE (detective quantum efficiency), and noise characteristics. This is the single highest-value replaceable component in the system. Early signs include subtle image artifacts, increased noise in low-dose images, dead pixel clusters, and flat-field non-uniformity that persists after calibration. Typical replacement every 5–8 years, though high-throughput facilities may see earlier degradation. Detector replacement requires full system recalibration including flat-field correction, AEC calibration, and ACR phantom verification. Typically a multi-day service event. The Dimensions/3Dimensions platform is the most widely deployed digital breast tomosynthesis system in the U.S., used in over 60% of certified mammography facilities. All detector parts ship same day when ordered before 3 PM ET and include a 90-day warranty from MammoService, the dedicated Hologic service division of ARRAD.