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Title The PS Booster Alignment Campaign and a New Tune Control Implementation After the LHC Injectors Upgrade at CERN
  • F. Antoniou, F. Asvesta, H. Bartosik, J.F. Comblin, G.P. Di Giovanni, M. Hostettler, A. Huschauer, B. Mikulec, J.-M. Nonglaton, T. Prebibaj
    CERN, Meyrin, Switzerland
Abstract The CERN PS Booster (PSB) has gone through major upgrades during the Long Shutdown 2 (LS2) and the recommissioning with beam started in December 2020. Two of the aspects leading to improved operation will be described in this paper: a new tune control implementation; and a full re-alignment campaign. The operation of the PSB requires a large range of working points to be accessible along the acceleration cycle. As part of the LIU project, the PSB main power supply was upgraded to raise the extraction energy from 1.4 GeV to 2 GeV, in order to improve the brightness reach of the downstream machines. A new tune control implementation was necessary to take into account saturation effects of the bending magnets and the reconfiguration of the main circuits, as well as the additional complexity of the new H⁻ charge exchange injection. The first part of the paper describes the implementation of the new tune control and its experimental verification and optimization. The second part describes the results of the PSB alignment campaign after LS2, giving emphasis to the method developed to perform a combined closed orbit correction through quadrupole alignments.
Paper download MOP14.PDF [1.745 MB / 6 pages]
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Conference HB2021
Series ICFA ABDW on High-Intensity and High-Brightness Hadron Beams (64th)
Location Batavia, IL, USA
Date 04-08 October 2021
Publisher JACoW Publishing, Geneva, Switzerland
Editorial Board Eliana Gianfelice (FNAL, Batavia, IL, USA); Sergei Nagaitsev (FNAL, Batavia, IL, USA); Dong Eon Kim (PAL, Pohang, South Korea); Michaela Marx (DESY, Hamburg, Germany); Volker R. W. Schaa (GSI, Darmstadt, Germany)
Online ISBN 978-3-95450-225-7
Online ISSN 2673-5571
Received 18 October 2021
Revised 19 November 2021
Accepted 25 March 2022
Issue Date 11 April 2022
DOI doi:10.18429/JACoW-HB2021-MOP14
Pages 89-94
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