Low Level RF Control Algorithms for the CERN Proton LINAC4

The CERN Linac4 Low Level RF (LLRF) uses a Linear Quadratic Gaussian regulator and an Adaptive Feed Forward to stabilize the accelerating field in the cavities in the presence of strong beam loading. A Klystron Polar Loop is also implemented to compensate the RF perturbations caused by the ripples a...

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Detalles Bibliográficos
Autores principales: Baudrenghien, Philippe, Bielawski, Bartosz Przemyslaw, Borner, Robert
Lenguaje:eng
Publicado: 2022
Materias:
Accelerators and Storage Rings
Acceso en línea:https://dx.doi.org/10.18429/JACoW-LINAC2022-TH1AA06
http://cds.cern.ch/record/2844859
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author Baudrenghien, Philippe
Bielawski, Bartosz Przemyslaw
Borner, Robert
author_facet Baudrenghien, Philippe
Bielawski, Bartosz Przemyslaw
Borner, Robert
author_sort Baudrenghien, Philippe
collection CERN
description The CERN Linac4 Low Level RF (LLRF) uses a Linear Quadratic Gaussian regulator and an Adaptive Feed Forward to stabilize the accelerating field in the cavities in the presence of strong beam loading. A Klystron Polar Loop is also implemented to compensate the RF perturbations caused by the ripples and droop in the klystron High Voltage supply. The paper presents the important parts of the regulation, shows results as the system has evolved from first prototype (2013) to operational beams (2020), and mentions some important issues encountered during the commissioning and the first years of operation, with their mitigations.
id cern-2844859
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2022
record_format invenio
spelling cern-28448592022-12-18T20:51:49Zdoi:10.18429/JACoW-LINAC2022-TH1AA06http://cds.cern.ch/record/2844859engBaudrenghien, PhilippeBielawski, Bartosz PrzemyslawBorner, RobertLow Level RF Control Algorithms for the CERN Proton LINAC4Accelerators and Storage RingsThe CERN Linac4 Low Level RF (LLRF) uses a Linear Quadratic Gaussian regulator and an Adaptive Feed Forward to stabilize the accelerating field in the cavities in the presence of strong beam loading. A Klystron Polar Loop is also implemented to compensate the RF perturbations caused by the ripples and droop in the klystron High Voltage supply. The paper presents the important parts of the regulation, shows results as the system has evolved from first prototype (2013) to operational beams (2020), and mentions some important issues encountered during the commissioning and the first years of operation, with their mitigations.oai:cds.cern.ch:28448592022
spellingShingle Accelerators and Storage Rings
Baudrenghien, Philippe
Bielawski, Bartosz Przemyslaw
Borner, Robert
Low Level RF Control Algorithms for the CERN Proton LINAC4
title Low Level RF Control Algorithms for the CERN Proton LINAC4
title_full Low Level RF Control Algorithms for the CERN Proton LINAC4
title_fullStr Low Level RF Control Algorithms for the CERN Proton LINAC4
title_full_unstemmed Low Level RF Control Algorithms for the CERN Proton LINAC4
title_short Low Level RF Control Algorithms for the CERN Proton LINAC4
title_sort low level rf control algorithms for the cern proton linac4
topic Accelerators and Storage Rings
url https://dx.doi.org/10.18429/JACoW-LINAC2022-TH1AA06
http://cds.cern.ch/record/2844859
work_keys_str_mv AT baudrenghienphilippe lowlevelrfcontrolalgorithmsforthecernprotonlinac4
AT bielawskibartoszprzemyslaw lowlevelrfcontrolalgorithmsforthecernprotonlinac4
AT bornerrobert lowlevelrfcontrolalgorithmsforthecernprotonlinac4

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