Conveners
High Power RF systems Status and Operating Experience #1
- Cristina Pasotti (Elettra-Sincrotrone Trieste S.C.p.A.)
The challenges faced in keeping the Advanced Photon Source 350MHz rf systems reliable will be discussed. This includes klystron performance and problems, troublesome intermittent fault conditions, HVPS system failures, and the effects ac power outages have on 27-year-old equipment.
FLASH is a free electron laser driven by a superconducting linear accelerator. During the last shutdown for the FLASH2020+ upgrade several modifications have been made to the HPRF system. Two European XFEL type superconducting accelerator cryomodules with tailored RF power waveguide distribution have replaced two old lower performance modules. Another two old accelerator modules have been...
The Advanced Light Source (ALS) has completed an upgrade on its storage ring RF system, which enabled various RF drive modes that can deliver up to 320kW power into two RF cavities through a motorized waveguide matrix. The system incorporates two 300kW klystrons, both are powered by -52.5 kV DC voltage via a fast-disconnect switch network, and are driven by a digital low-level RF control...
In the SOLEIL storage ring, two cryomodules provide to the electron beam an accelerating voltage of 3-4 MV and a power of 575 kW at 352 MHz. Each cryomodule contains a pair of “HOM free” superconducting cavities, cooled with liquid Helium at 4.5 K, which is supplied by a single 350 W cryogenic plant. The RF power is provided by four solid state amplifiers (SSA), each delivering up to 180 kW....
