Speaker
Description
The plasma wakefield acceleration is becoming the most promising acceleration scheme because of its high accelerating gradient and compactness, but it also suffers from unstable operation since the acceleration is accomplished in a short, steep and nonlinear gradient region. This puts forward a very strict synchronization requirement on the subsystems of the entire facility. For the beam-driven scheme, the RF line phase jitter should be less than 20 fs RMS with respect to the facility’s reference master oscillator (RMO). At SPARC_LAB, the RF stabilization technology on RF power stations has been developed for years. These efforts have successfully reduced the phase jitter of the RF line from hundreds of femtoseconds to tens of femtoseconds RMS relative to the RMO. Recent developments on this technology mainly focus on optimizing the fast feedback loop design, together with upgrades of other necessary LLRF components. Dedicated measurements of the prototypes in S-band and C-band both demonstrate reliable and excellent jitter minimization, satisfying the rigid synchronization requirement of beam-driven plasma wakefield accelerators.
Funding Agency
European Union´s Horizon Europe research and innovation programme under grant agreement no. 101073480.
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