Klystron (CX1140LG / 8503K)
Generates the microwave RF power that accelerates electrons in the waveguide. Finite lifespan — the most expensive scheduled wear item on the platform.
Fits
- Varian Clinac iX
- Varian Trilogy, 21EX (select configs)
Diagnosis
- Filament current dropping below half nominal → interlock imminent
- Arcing or vacuum pressure excursions → risk of collateral damage