Identification and reduction of the CERN SPS impedance

The first SPS impedance reduction programme has been completed in 2001, preparing the ring for its role as an injector of the LHC. This action has eliminated microwave instability on the SPS flat bottom and later nominal beam could be delivered to the LHC. The High Luminosity (HL-) LHC project is ba...

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Detalles Bibliográficos
Autores principales: Shaposhnikova, Elena, Argyropoulos, Theodoros, Bohl, Thomas, Lasheen, Alexandre, Repond, Joël, Timko, Helga
Lenguaje:eng
Publicado: 2016
Materias:
Accelerators and Storage Rings
Acceso en línea:https://dx.doi.org/10.18429/JACoW-HB2016-TUAM3X01
http://cds.cern.ch/record/2304645
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author Shaposhnikova, Elena
Argyropoulos, Theodoros
Bohl, Thomas
Lasheen, Alexandre
Repond, Joël
Timko, Helga
author_facet Shaposhnikova, Elena
Argyropoulos, Theodoros
Bohl, Thomas
Lasheen, Alexandre
Repond, Joël
Timko, Helga
author_sort Shaposhnikova, Elena
collection CERN
description The first SPS impedance reduction programme has been completed in 2001, preparing the ring for its role as an injector of the LHC. This action has eliminated microwave instability on the SPS flat bottom and later nominal beam could be delivered to the LHC. The High Luminosity (HL-) LHC project is based on beam with twice higher intensity than the nominal one. One of the important SPS intensity limitations are longitudinal instabilities with minimum threshold reached on the 450 GeV flat top. In this paper the work which was carried on to identify the impedance sources driving these instabilities is described together with the next campaign of the SPS impedance reduction planned by the LHC Injector Upgrade (LIU) project.
id oai-inspirehep.net-1639601
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2016
record_format invenio
spelling oai-inspirehep.net-16396012019-09-30T06:29:59Zdoi:10.18429/JACoW-HB2016-TUAM3X01http://cds.cern.ch/record/2304645engShaposhnikova, ElenaArgyropoulos, TheodorosBohl, ThomasLasheen, AlexandreRepond, JoëlTimko, HelgaIdentification and reduction of the CERN SPS impedanceAccelerators and Storage RingsThe first SPS impedance reduction programme has been completed in 2001, preparing the ring for its role as an injector of the LHC. This action has eliminated microwave instability on the SPS flat bottom and later nominal beam could be delivered to the LHC. The High Luminosity (HL-) LHC project is based on beam with twice higher intensity than the nominal one. One of the important SPS intensity limitations are longitudinal instabilities with minimum threshold reached on the 450 GeV flat top. In this paper the work which was carried on to identify the impedance sources driving these instabilities is described together with the next campaign of the SPS impedance reduction planned by the LHC Injector Upgrade (LIU) project.oai:inspirehep.net:16396012016
spellingShingle Accelerators and Storage Rings
Shaposhnikova, Elena
Argyropoulos, Theodoros
Bohl, Thomas
Lasheen, Alexandre
Repond, Joël
Timko, Helga
Identification and reduction of the CERN SPS impedance
title Identification and reduction of the CERN SPS impedance
title_full Identification and reduction of the CERN SPS impedance
title_fullStr Identification and reduction of the CERN SPS impedance
title_full_unstemmed Identification and reduction of the CERN SPS impedance
title_short Identification and reduction of the CERN SPS impedance
title_sort identification and reduction of the cern sps impedance
topic Accelerators and Storage Rings
url https://dx.doi.org/10.18429/JACoW-HB2016-TUAM3X01
http://cds.cern.ch/record/2304645
work_keys_str_mv AT shaposhnikovaelena identificationandreductionofthecernspsimpedance
AT argyropoulostheodoros identificationandreductionofthecernspsimpedance
AT bohlthomas identificationandreductionofthecernspsimpedance
AT lasheenalexandre identificationandreductionofthecernspsimpedance
AT repondjoel identificationandreductionofthecernspsimpedance
AT timkohelga identificationandreductionofthecernspsimpedance

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