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'Journal of Accelerator Conferences Website' (JACoW) is a publisher in Geneva, Switzerland that publishes the proceedings of accelerator conferences held around the world by an international collaboration of editors.


https://doi.org/10.18429/JACoW-LINAC2022-THPOPA24
Title First SELAP Algorithm Operational Experience of the New LLRF 3.0 RF Control System
Authors
  • T.E. Plawski, R. Bachimanchi, S. Higgins, C. Hovater, J. Latshaw, C.I. Mounts
    JLab, Newport News, Virgina, USA
Abstract The JLAB LLRF 3.0 system has been developed and is replacing the 30-year-old LLRF systems in the CEBAF accelerator. The LLRF system builds upon 25 years of design and operational RF control experience (digital and analog), and our recent collaboration in the design of the LCLSII LLRF system. The new system also incorporates a cavity control algorithm using a fully functional phase and amplitude locked Self Exciting Loop (SELAP). The first system (controlling 8 cavities) was installed and commissioned in August of 2021. Since then the new LLRF system has been operating with cavity gradients up to 20 MV/m, and electron beam currents up to 350 uA. This paper discusses the operational experience of the LLRF 3.0 SELAP algorithm along with other software and firmware tools like cavity and klystron characterization and quench detection.
Footnotes & References T. E. Plawski et al., ’JLAB LLRF 3.0 Development and Tests’, in Proc. 12th Int. Particle Accelerator Conf. (IPAC’21), Campinas, Brazil, May 2021, pp
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Conference LINAC2022
Series International Linear Accelerator Conference (31st)
Location Liverpool, UK
Date 28 August-02 September 2022
Publisher JACoW Publishing, Geneva, Switzerland
Editorial Board Peter McIntosh (STFC DL, Daresbury, UK); Graeme Burt (Lancaster Univ., Lancaster, UK); Robert Apsimon (Lancaster Univ., Lancaster, UK); Volker R.W. Schaa (GSI, Darmstadt, Germany)
Online ISBN 978-3-95450-215-8
Online ISSN 2226-0366
Received 10 August 2022
Revised 01 September 2022
Accepted 07 September 2022
Issue Date 12 October 2022
DOI doi:10.18429/JACoW-LINAC2022-THPOPA24
Pages 795-797
Copyright
Creative Commons CC logoPublished by JACoW Publishing under the terms of the Creative Commons Attribution 4.0 International license. Any further distribution of this work must maintain attribution to the author(s), the published article's title, publisher, and DOI.