Speaker
Description
As part of the High-Luminosity LHC (HL-LHC) project, the Super Proton Synchrotron (SPS) Low-Level RF (LLRF) system has undergone a major upgrade during the machine shutdown in 2019-20 to meet the performance requirements of the LHC ion program and high-intensity proton beams. A key development in this context is the implementation of a bunch-by-bunch measurement chain, designed to provide high-resolution diagnostics and bunch-by-bunch phase feedback capability.
This tool is particularly valuable for the ion slip-stacking RF manipulations where precise bunch-masking is required. In addition, it serves as a diagnostic tool to investigate beam loading effects by directly comparing the cavity voltage with the phase evolution of individual bunches. The system is implemented on the MicroTCA platform and employs 5 Gsps digitization of the beam signal from a wall current monitor (WCM).
This paper presents the operational results and commissioning challenges of the new acquisition and phase loop system.
| In which format do you inted to submit your paper? | LaTeX |
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