Electron cloud studies for the LHC TDI and HL-LHC TDIS

The LHC injection beam stopper (TDI) is designed to protect the machine in case of injection kicker malfunctioning. During the operation it was observed that electron cloud can build up inside the TDI chamber especially for certain openings of movable jaws. Numerical studies were done to estimate th...

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Detalles Bibliográficos
Autores principales: Skripka, Galina, Iadarola, Giovanni
Lenguaje:eng
Publicado: 2018
Materias:
Accelerators and Storage Rings
Acceso en línea:http://cds.cern.ch/record/2636658
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author Skripka, Galina
Iadarola, Giovanni
author_facet Skripka, Galina
Iadarola, Giovanni
author_sort Skripka, Galina
collection CERN
description The LHC injection beam stopper (TDI) is designed to protect the machine in case of injection kicker malfunctioning. During the operation it was observed that electron cloud can build up inside the TDI chamber especially for certain openings of movable jaws. Numerical studies were done to estimate the electron flux on the internal surfaces of the device for the present TDI and the future TDIS beam stoppers foreseen for the HL-LHC. Different configurations of the devices as well as possible coating options to reduce electron multipacting are discussed in this report. The results presented here will be used by the vacuum team to quantify the detrimental effect of the electron cloud on the vacuum pressure.
id cern-2636658
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2018
record_format invenio
spelling cern-26366582019-09-30T06:29:59Zhttp://cds.cern.ch/record/2636658engSkripka, GalinaIadarola, GiovanniElectron cloud studies for the LHC TDI and HL-LHC TDISAccelerators and Storage RingsThe LHC injection beam stopper (TDI) is designed to protect the machine in case of injection kicker malfunctioning. During the operation it was observed that electron cloud can build up inside the TDI chamber especially for certain openings of movable jaws. Numerical studies were done to estimate the electron flux on the internal surfaces of the device for the present TDI and the future TDIS beam stoppers foreseen for the HL-LHC. Different configurations of the devices as well as possible coating options to reduce electron multipacting are discussed in this report. The results presented here will be used by the vacuum team to quantify the detrimental effect of the electron cloud on the vacuum pressure.CERN-ACC-NOTE-2018-0060oai:cds.cern.ch:26366582018-08-30
spellingShingle Accelerators and Storage Rings
Skripka, Galina
Iadarola, Giovanni
Electron cloud studies for the LHC TDI and HL-LHC TDIS
title Electron cloud studies for the LHC TDI and HL-LHC TDIS
title_full Electron cloud studies for the LHC TDI and HL-LHC TDIS
title_fullStr Electron cloud studies for the LHC TDI and HL-LHC TDIS
title_full_unstemmed Electron cloud studies for the LHC TDI and HL-LHC TDIS
title_short Electron cloud studies for the LHC TDI and HL-LHC TDIS
title_sort electron cloud studies for the lhc tdi and hl-lhc tdis
topic Accelerators and Storage Rings
url http://cds.cern.ch/record/2636658
work_keys_str_mv AT skripkagalina electroncloudstudiesforthelhctdiandhllhctdis
AT iadarolagiovanni electroncloudstudiesforthelhctdiandhllhctdis

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