Performix Pro
GE's high-output CT X-ray tube family. Performix Pro VCT 100 (~8.0 MHU) is the LightSpeed VCT-class tube. Predecessor and value-tier alongside Gemstone Clarity / Performix HD generations on Discovery CT750 HD / Revolution CT.
Why it matters to buyers: Single largest replacement cost on a VCT-class scanner. Tube hours and scan count are the core resale metrics; tube end-of-life dominates total cost-of-ownership conversations.
Why it matters to engineers: Shared with the Discovery PET / CT 690 CT subsystem — good aftermarket parts availability across the LightSpeed VCT and Discovery 690 installed base.