368168 20260603221831.0 10.1109/TNS.2026.3687074 doi 0018-9499 ISSN 1558-1578 ISSN 10.15120/GSI-2026-00725 datacite_doi GSI-2026-00725 English 620 Wegmann, Christoph Julien 0009-0005-6816-1155 0 Corresponding author Verification of the Beam Phase Control System Topology for FAIR by Beam Experiments New York, NY 2026 IEEE article DRIVER Output Types/Journal article DataCite Journal Article journal journal PUB:(DE-HGF)16 1780482553_4099116 PUB:(DE-HGF) ARTICLE BibTeX JOURNAL_ARTICLE ORCID Journal Article 0 EndNote This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License. For more information, see https://creativecommons.org/licenses/by-nc-nd/4.0/ Beam phase control loops have become an important sub-system of the low-level radio frequency (LLRF) systems of ion synchrotrons. A wide range of different implementations exists today. The LLRF system at the GSI Helmholtzzentrum für Schwerionenforschung (GSI)/Facility for Antiproton and Ion Research in Europe (FAIR) was designed with the particular goals of modularity, flexibility, scalability, and user-friendly diagnostics possibilities. Based on these requirements, a system focused on the time-domain manipulation of all RF and beam signals was developed. This contribution presents the beam phase control system and demonstrates its effectiveness. The special attention is paid to the operation during the acceleration ramp. Results of two independent beam experiments are presented: one focused on examining the control loop behavior and one applying the system in a practical setting. In both cases, the GSI/FAIR beam phase control system successfully dampens longitudinal dipole mode bunch oscillations. Its performance and behavior matches previous analyses. 621 - Accelerator Research and Development (POF4-621) G:(DE-HGF)POF4-621 POF4-621 POF IV 0 Dataset connected to CrossRef, Journals: repository.gsi.de Facility_outside_beam_time_program Experiment at GSI without experiment proposal number ( - ; Facility_outside_beam_time_program ) EXP:(DE-Ds200)Facility_outside_beam_time_program-20200803 EXP:(DE-Ds200)Experiment_without_proposal_number-20200803 EXP:(DE-Ds200)Experiment_without_proposal_number-20200803 0 Lens, Dieter P:(DE-Ds200)OR6324 1 gsi Zipfel, Bernhard P:(DE-Ds200)OR1449 2 gsi Reinwald, Christoph 0009-0008-0859-329X 3 Klingbeil, Harald P:(DE-Ds200)OR0597 4 gsi 10.1109/TNS.2026.3687074 Vol. 73, no. 5, p. 1812 - 1822 PERI:(DE-600)2025398-9 5 1812 - 1822 IEEE transactions on nuclear science 73 2026 0018-9499 OpenAccess http://repository.gsi.de/record/368168/files/Verification_of_the_Beam_Phase_Control_System_Topology_for_FAIR_by_Beam_Experiments-1.pdf OpenAccess pdfa http://repository.gsi.de/record/368168/files/Verification_of_the_Beam_Phase_Control_System_Topology_for_FAIR_by_Beam_Experiments-1.pdf?subformat=pdfa oai:repository.gsi.de:368168 openaire open_access VDB driver dnbdelivery GSI Helmholtzzentrum für Schwerionenforschung GmbH I:(DE-Ds200)20121206GSI GSI 1 P:(DE-Ds200)OR6324 GSI Helmholtzzentrum für Schwerionenforschung GmbH I:(DE-Ds200)20121206GSI GSI 2 P:(DE-Ds200)OR1449 GSI Helmholtzzentrum für Schwerionenforschung GmbH I:(DE-Ds200)20121206GSI GSI 4 P:(DE-Ds200)OR0597 DE-HGF Forschungsbereich Materie Materie und Technologie G:(DE-HGF)POF4-620 G:(DE-HGF)POF4-621 G:(DE-HGF)POF4 G:(DE-HGF)POF4-600 G:(DE-HGF)POF Accelerator Research and Development 0 2026 DBCoverage StatID:(DE-HGF)0200 StatID SCOPUS 2024-12-28 DBCoverage StatID:(DE-HGF)0160 StatID Essential Science Indicators 2024-12-28 DBCoverage StatID:(DE-HGF)1160 StatID Current Contents - Engineering, Computing and Technology 2024-12-28 DBCoverage StatID:(DE-HGF)0600 StatID Ebsco Academic Search 2024-12-28 Creative Commons Attribution-NonCommercial-NoDerivs CC BY-NC-ND 4.0 LIC:(DE-HGF)CCBYNCND4 HGFVOC JCR StatID:(DE-HGF)0100 StatID IEEE T NUCL SCI : 2022 2024-12-28 WoS StatID:(DE-HGF)0113 StatID Science Citation Index Expanded 2024-12-28 DBCoverage StatID:(DE-HGF)0150 StatID Web of Science Core Collection 2024-12-28 IF < 5 StatID:(DE-HGF)9900 StatID 2024-12-28 OpenAccess StatID:(DE-HGF)0510 StatID Peer Review StatID:(DE-HGF)0030 StatID ASC 2024-12-28 DBCoverage StatID:(DE-HGF)1150 StatID Current Contents - Physical, Chemical and Earth Sciences 2024-12-28 DBCoverage StatID:(DE-HGF)0300 StatID Medline 2024-12-28 DBCoverage StatID:(DE-HGF)0199 StatID Clarivate Analytics Master Journal List 2024-12-28 yes I:(DE-Ds200)RRF-20051214OR059 RRF Ring RF 0 journal VDB UNRESTRICTED I:(DE-Ds200)RRF-20051214OR059 FullTexts