17–22 May 2026
C.I.D
Europe/Zurich timezone

Bunch-by-Bunch Phase Pick-Up System in the SPS

WEP6117
20 May 2026, 16:00
2h
C.I.D

C.I.D

Deauville, France
Poster Presentation MC6.T05: Beam Feedback Systems Poster session

Speaker

Arthur Spierer (European Organization for Nuclear Research)

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 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 beam-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.

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? Word

Author

Arthur Spierer (European Organization for Nuclear Research)

Co-author

Philippe Baudrenghien (European Organization for Nuclear Research)

Presentation materials

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