Capture loss of the LHC beam in the CERN SPS

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The dependence of energy loss on bunch length was determined experimentally for a single proton bunch in the SPS at 26 GeV/c. This was done from measurements of the synchronous phase as a function of intensity for different capture voltages. The results are compared with the expected dependence calc...

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Detalles Bibliográficos
Autores principales: Bohl, T, Linnecar, Trevor Paul R, Shaposhnikova, Elena, Tückmantel, Joachim
Lenguaje:eng
Publicado: 2004
Materias:
Accelerators and Storage Rings
Acceso en línea:http://cds.cern.ch/record/790611
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author Bohl, T
Linnecar, Trevor Paul R
Shaposhnikova, Elena
Tückmantel, Joachim
author_facet Bohl, T
Linnecar, Trevor Paul R
Shaposhnikova, Elena
Tückmantel, Joachim
author_sort Bohl, T
collection CERN
description The dependence of energy loss on bunch length was determined experimentally for a single proton bunch in the SPS at 26 GeV/c. This was done from measurements of the synchronous phase as a function of intensity for different capture voltages. The results are compared with the expected dependence calculated from the resistive part of the SPS impedance below 1 GHz. Two impedance sources, the cavities of the 200 MHz RF system and the extraction kickers, give the main contributions to particle energy loss in very good agreement with experiment. The results obtained allow a better understanding of some mechanisms leading to capture loss of the high intensity LHC beam in the SPS.
id cern-790611
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2004
record_format invenio
spelling cern-7906112023-05-31T13:20:13Zhttp://cds.cern.ch/record/790611engBohl, TLinnecar, Trevor Paul RShaposhnikova, ElenaTückmantel, JoachimCapture loss of the LHC beam in the CERN SPSAccelerators and Storage RingsThe dependence of energy loss on bunch length was determined experimentally for a single proton bunch in the SPS at 26 GeV/c. This was done from measurements of the synchronous phase as a function of intensity for different capture voltages. The results are compared with the expected dependence calculated from the resistive part of the SPS impedance below 1 GHz. Two impedance sources, the cavities of the 200 MHz RF system and the extraction kickers, give the main contributions to particle energy loss in very good agreement with experiment. The results obtained allow a better understanding of some mechanisms leading to capture loss of the high intensity LHC beam in the SPS.LHC-Project-Report-765CERN-LHC-Project-Report-765oai:cds.cern.ch:7906112004-08-17
spellingShingle Accelerators and Storage Rings
Bohl, T
Linnecar, Trevor Paul R
Shaposhnikova, Elena
Tückmantel, Joachim
Capture loss of the LHC beam in the CERN SPS
title Capture loss of the LHC beam in the CERN SPS
title_full Capture loss of the LHC beam in the CERN SPS
title_fullStr Capture loss of the LHC beam in the CERN SPS
title_full_unstemmed Capture loss of the LHC beam in the CERN SPS
title_short Capture loss of the LHC beam in the CERN SPS
title_sort capture loss of the lhc beam in the cern sps
topic Accelerators and Storage Rings
url http://cds.cern.ch/record/790611
work_keys_str_mv AT bohlt capturelossofthelhcbeaminthecernsps
AT linnecartrevorpaulr capturelossofthelhcbeaminthecernsps
AT shaposhnikovaelena capturelossofthelhcbeaminthecernsps
AT tuckmanteljoachim capturelossofthelhcbeaminthecernsps

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