Speaker
Description
Limitations in RF power at the injection plateau of the Large Hadron Collider (LHC) have been a major concern for the High-Luminosity (HL) LHC era. The increased bunch charge requires more RF power to compensate beam loading. A higher RF voltage at the injection plateau is moreover vital for both the RF capture and to counteract particle leakage from the buckets. The projected RF power with HL-LHC parameters is beyond what the currently installed klystrons can provide. Consequently, an unacceptable amount of particles lost at the start of acceleration is expected. These limitations have now been overcome, thanks to a combination of several mitigations. More power from high-efficiency klystrons will be complemented by an evolved optimization of the RF system parameters in terms of tuning and quality factor. This contribution will give an overview on the operational improvements and mitigation measures that are currently being put in place to handle the HL-LHC beams. Essential studies in the framework of the LHC high-intensity tests in 2026 are outlined.
Funding Agency
Research supported by the HL-LHC project.
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