Klystron prototype completed and validated

The initiative to design and build a high efficiency klystron to be used in the LHC as a demonstrator was launched in 2018. Simulation packages developed at CERN predicted a beam to  RF power efficiency of 70% for a new optimized CERN design, using the same power converter and infrastructure in use in the LHC. A collaboration with THALES (FR), the manufacturer of the original klystron was established to convert one unit that is currently in use in LHC into a high-efficiency model, while reusing most of the ancillary systems like the solenoid, support frame, output coaxial  to waveguide transition gun. The new model is fully compatible with the installation at CERN without major modifications, so it can be used as a spare for the LHC machine.

The final performance of the tube allows for a higher RF power generated from the same power consumption. This opens the possibility to use it for the high luminosity upgrade of the current LHC