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The CERN SPS Low Level RF: The Beam-Control
The Super Proton Synchrotron (SPS) Low Level RF (LLRF) has been completely upgraded during the CERN long shutdown (LS2, 2019-2020). The old NIM and VME based, mainly analog system has been replaced with modern digital electronics implemented on a MicroTCA platform. The architecture has also been rev...
Autores principales: | , , , , , , , |
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Lenguaje: | eng |
Publicado: |
2022
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Materias: | |
Acceso en línea: | https://dx.doi.org/10.18429/JACoW-IPAC2022-TUPOST021 http://cds.cern.ch/record/2845762 |
_version_ | 1780976571618689024 |
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author | Spierer, Arthur Baudrenghien, Philippe Egli, Julien Hagmann, Gregoire Kuzmanović, Predrag Stachon, Ireneusz Sumiński, Maciej Włostowski, Tomasz |
author_facet | Spierer, Arthur Baudrenghien, Philippe Egli, Julien Hagmann, Gregoire Kuzmanović, Predrag Stachon, Ireneusz Sumiński, Maciej Włostowski, Tomasz |
author_sort | Spierer, Arthur |
collection | CERN |
description | The Super Proton Synchrotron (SPS) Low Level RF (LLRF) has been completely upgraded during the CERN long shutdown (LS2, 2019-2020). The old NIM and VME based, mainly analog system has been replaced with modern digital electronics implemented on a MicroTCA platform. The architecture has also been reviewed, with synchronization between RF stations now resting on the White Rabbit (WR) deterministic link. This paper is the first of a series of three on the SPS LLRF upgrade. It covers the Beam-Control part, that is responsible for the generation of the RF reference frequency from a measurement of the magnetic field, and beam phase and radial position. It broadcasts this frequency word to the RF stations, via a White Rabbit network. The paper presents the architecture, gives details on the signal processing, firmware, hardware and software. Finally, results from the first year of beam commissioning are presented (2021). |
id | cern-2845762 |
institution | Organización Europea para la Investigación Nuclear |
language | eng |
publishDate | 2022 |
record_format | invenio |
spelling | cern-28457622023-01-11T21:31:18Zdoi:10.18429/JACoW-IPAC2022-TUPOST021http://cds.cern.ch/record/2845762engSpierer, ArthurBaudrenghien, PhilippeEgli, JulienHagmann, GregoireKuzmanović, PredragStachon, IreneuszSumiński, MaciejWłostowski, TomaszThe CERN SPS Low Level RF: The Beam-ControlAccelerators and Storage RingsThe Super Proton Synchrotron (SPS) Low Level RF (LLRF) has been completely upgraded during the CERN long shutdown (LS2, 2019-2020). The old NIM and VME based, mainly analog system has been replaced with modern digital electronics implemented on a MicroTCA platform. The architecture has also been reviewed, with synchronization between RF stations now resting on the White Rabbit (WR) deterministic link. This paper is the first of a series of three on the SPS LLRF upgrade. It covers the Beam-Control part, that is responsible for the generation of the RF reference frequency from a measurement of the magnetic field, and beam phase and radial position. It broadcasts this frequency word to the RF stations, via a White Rabbit network. The paper presents the architecture, gives details on the signal processing, firmware, hardware and software. Finally, results from the first year of beam commissioning are presented (2021).oai:cds.cern.ch:28457622022 |
spellingShingle | Accelerators and Storage Rings Spierer, Arthur Baudrenghien, Philippe Egli, Julien Hagmann, Gregoire Kuzmanović, Predrag Stachon, Ireneusz Sumiński, Maciej Włostowski, Tomasz The CERN SPS Low Level RF: The Beam-Control |
title | The CERN SPS Low Level RF: The Beam-Control |
title_full | The CERN SPS Low Level RF: The Beam-Control |
title_fullStr | The CERN SPS Low Level RF: The Beam-Control |
title_full_unstemmed | The CERN SPS Low Level RF: The Beam-Control |
title_short | The CERN SPS Low Level RF: The Beam-Control |
title_sort | cern sps low level rf: the beam-control |
topic | Accelerators and Storage Rings |
url | https://dx.doi.org/10.18429/JACoW-IPAC2022-TUPOST021 http://cds.cern.ch/record/2845762 |
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