CERN Accelerating science

Article
Title Recent updates in the impedance characterization of the CERN PS Booster Finemet RF system
Author(s) Neroni, Michela (CERN ; Rome U.) ; Albright, Simon (CERN) ; Damerau, Heiko (CERN) ; Gnemmi, Giulia (CERN) ; Haase, Matthias (CERN) ; Mostacci, Andrea (Rome U.) ; Paoluzzi, Mauro (CERN) ; Vollinger, Christine (CERN)
Publication 2024
Number of pages 4
In: JACoW IPAC 2024 (2024) THPC52
In: 15th International Particle Accelerator Conference (IPAC 2024), Nashville, TN, United States, 19 - 24 May 2024, pp.THPC52
DOI 10.18429/JACoW-IPAC2024-THPC52
Subject category Accelerators and Storage Rings
Accelerator/Facility, Experiment CERN PSB
Abstract During the last long shutdown of the accelerators at CERN (LS2), the main radio frequency system of the Proton Synchrotron Booster (PSB) was upgraded. A widebandsystem with Finemet magnetic alloy cavities driven by solid-state amplifiers replaced several different ferrite-loaded cavities. In measurements post-LS2, the longitudinal beam stability did not match predictions, which triggered a survey of the PSB impedance model. This started with the Finemet RF system, which are expected to be the dominantimpedance contribution. Single stretched wire measurements were carried out with a 6-cell Finemet test cavity with different amplifier configurations. Measurement resultsand electromagnetic simulations are presented in this paper and compared to the previous impedance model. The electromagnetic characterization presented in this contribution will complement the beam-based impedance and low-level RF measurements as an input for the simulations of beam stability.
Copyright/License CC-BY-4.0

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 Δημιουργία εγγραφής 2024-10-09, τελευταία τροποποίηση 2024-10-10


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