Cargando…

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...

Descripción completa

Detalles Bibliográficos
Autores principales: Spierer, Arthur, Baudrenghien, Philippe, Egli, Julien, Hagmann, Gregoire, Kuzmanović, Predrag, Stachon, Ireneusz, Sumiński, Maciej, Włostowski, Tomasz
Lenguaje:eng
Publicado: 2022
Materias:
Acceso en línea:https://dx.doi.org/10.18429/JACoW-IPAC2022-TUPOST021
http://cds.cern.ch/record/2845762
_version_ 1780976571618689024
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
work_keys_str_mv AT spiererarthur thecernspslowlevelrfthebeamcontrol
AT baudrenghienphilippe thecernspslowlevelrfthebeamcontrol
AT eglijulien thecernspslowlevelrfthebeamcontrol
AT hagmanngregoire thecernspslowlevelrfthebeamcontrol
AT kuzmanovicpredrag thecernspslowlevelrfthebeamcontrol
AT stachonireneusz thecernspslowlevelrfthebeamcontrol
AT suminskimaciej thecernspslowlevelrfthebeamcontrol
AT włostowskitomasz thecernspslowlevelrfthebeamcontrol
AT spiererarthur cernspslowlevelrfthebeamcontrol
AT baudrenghienphilippe cernspslowlevelrfthebeamcontrol
AT eglijulien cernspslowlevelrfthebeamcontrol
AT hagmanngregoire cernspslowlevelrfthebeamcontrol
AT kuzmanovicpredrag cernspslowlevelrfthebeamcontrol
AT stachonireneusz cernspslowlevelrfthebeamcontrol
AT suminskimaciej cernspslowlevelrfthebeamcontrol
AT włostowskitomasz cernspslowlevelrfthebeamcontrol