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Longitudinal and Transverse Wire Measurements for the Evaluation of Impedance Reduction Measures on the MKE Extraction Kickers

In 2003 significant heating of the MKE Extraction kicker magnets in CERN's SPS was confirmed by measurements with beam. The dissipated power was so high that it would seriously jeopardize the good functioning of the kicker by warming the ferrite above the Curie temperature. In an impedance redu...

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Detalles Bibliográficos
Autores principales: Kroyer, T, Caspers, Friedhelm, Gaxiola, E
Lenguaje:eng
Publicado: 2007
Materias:
Acceso en línea:http://cds.cern.ch/record/1035461
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author Kroyer, T
Caspers, Friedhelm
Gaxiola, E
author_facet Kroyer, T
Caspers, Friedhelm
Gaxiola, E
author_sort Kroyer, T
collection CERN
description In 2003 significant heating of the MKE Extraction kicker magnets in CERN's SPS was confirmed by measurements with beam. The dissipated power was so high that it would seriously jeopardize the good functioning of the kicker by warming the ferrite above the Curie temperature. In an impedance reduction campaign the beam coupling impedance of the present kickers was assessed with wire measurements and possible cures were evaluated. For a reliable impedance determination refined measurement methods had to be used. Any kicker modification should not deteriorate kick field quality and high voltage capability. Shielding the ferrites with printed metallic strips turned out to be a promising solution. Technological issues of the metallic coatings are also discussed.
id cern-1035461
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2007
record_format invenio
spelling cern-10354612019-09-30T06:29:59Zhttp://cds.cern.ch/record/1035461engKroyer, TCaspers, FriedhelmGaxiola, ELongitudinal and Transverse Wire Measurements for the Evaluation of Impedance Reduction Measures on the MKE Extraction KickersAccelerators and Storage RingsIn 2003 significant heating of the MKE Extraction kicker magnets in CERN's SPS was confirmed by measurements with beam. The dissipated power was so high that it would seriously jeopardize the good functioning of the kicker by warming the ferrite above the Curie temperature. In an impedance reduction campaign the beam coupling impedance of the present kickers was assessed with wire measurements and possible cures were evaluated. For a reliable impedance determination refined measurement methods had to be used. Any kicker modification should not deteriorate kick field quality and high voltage capability. Shielding the ferrites with printed metallic strips turned out to be a promising solution. Technological issues of the metallic coatings are also discussed.AB-Note-2007-028CERN-AB-Note-2007-028oai:cds.cern.ch:10354612007-07-18
spellingShingle Accelerators and Storage Rings
Kroyer, T
Caspers, Friedhelm
Gaxiola, E
Longitudinal and Transverse Wire Measurements for the Evaluation of Impedance Reduction Measures on the MKE Extraction Kickers
title Longitudinal and Transverse Wire Measurements for the Evaluation of Impedance Reduction Measures on the MKE Extraction Kickers
title_full Longitudinal and Transverse Wire Measurements for the Evaluation of Impedance Reduction Measures on the MKE Extraction Kickers
title_fullStr Longitudinal and Transverse Wire Measurements for the Evaluation of Impedance Reduction Measures on the MKE Extraction Kickers
title_full_unstemmed Longitudinal and Transverse Wire Measurements for the Evaluation of Impedance Reduction Measures on the MKE Extraction Kickers
title_short Longitudinal and Transverse Wire Measurements for the Evaluation of Impedance Reduction Measures on the MKE Extraction Kickers
title_sort longitudinal and transverse wire measurements for the evaluation of impedance reduction measures on the mke extraction kickers
topic Accelerators and Storage Rings
url http://cds.cern.ch/record/1035461
work_keys_str_mv AT kroyert longitudinalandtransversewiremeasurementsfortheevaluationofimpedancereductionmeasuresonthemkeextractionkickers
AT caspersfriedhelm longitudinalandtransversewiremeasurementsfortheevaluationofimpedancereductionmeasuresonthemkeextractionkickers
AT gaxiolae longitudinalandtransversewiremeasurementsfortheevaluationofimpedancereductionmeasuresonthemkeextractionkickers