Speaker
Description
LCLS-SC achieved first light in 2023, and continues to ramp up performance. The linac consists of 35 cryomodules at 1.3 GHz, plus two cryomodules operating at the 3rd harmonic (3.9 GHz). The high repetition rate linac has been operating at 3.8 GeV regularly since 2024. As with any SRF machine, quenches occurred both during commissioning (as a part of normal processing), and during normal operations (tuning and beam delivery). After several years of operation, there are now thousands of quench events that can be analyzed and mapped to machine performance. In this work, quench rates in all cavities in the linac are identified and compared to operational quench rates and gradient limits.
Funding Agency
This work was funded by DOE contract No. DE-AC02-76SF00515.
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