Cargando…

Considerations on an Upgrade Possibility of the LHC Beam Dump Kicker System

The LHC Beam Dump System (LBDS) is designed to safely dispose the circulating beams over a wide range of energy from 450 GeV up to 7 TeV, where the maximum stored energy is 362 MJ per beam. One of the most critical components of the LBDS are the extraction kickers that must reliably switch on within...

Descripción completa

Detalles Bibliográficos
Autores principales: Fraser, Matthew, Bartmann, Wolfgang, Bracco, Chiara, Ducimetière, Laurent, Goddard, Brennan, Kramer, Thomas, Senaj, Viliam
Lenguaje:eng
Publicado: 2016
Materias:
Acceso en línea:https://dx.doi.org/10.18429/JACoW-IPAC2016-THPMW035
http://cds.cern.ch/record/2207464
_version_ 1780951812925292544
author Fraser, Matthew
Bartmann, Wolfgang
Bracco, Chiara
Ducimetière, Laurent
Goddard, Brennan
Kramer, Thomas
Senaj, Viliam
author_facet Fraser, Matthew
Bartmann, Wolfgang
Bracco, Chiara
Ducimetière, Laurent
Goddard, Brennan
Kramer, Thomas
Senaj, Viliam
author_sort Fraser, Matthew
collection CERN
description The LHC Beam Dump System (LBDS) is designed to safely dispose the circulating beams over a wide range of energy from 450 GeV up to 7 TeV, where the maximum stored energy is 362 MJ per beam. One of the most critical components of the LBDS are the extraction kickers that must reliably switch on within the 3 us particle-free abort gap. To ensure this functionality, even in the event of a power-cut, the power generator capacitors remain charged and hence the Gate Turn-Off (GTO) switch stack has to hold the full voltage throughout beam operation. The increase of the LHC collision energy to 13 TeV has increased the voltage levels at the GTO stacks and during re-commissioning an increased rate of high-voltage (HV) related issues at the level of the GTO stack was observed. Different solutions have been analysed and an improved GTO stack will be implemented. This paper also outlines the benefit of adding more kicker magnets to improve the voltage hold off issues and to improve the tolerance to missing kickers during extraction.
id oai-inspirehep.net-1470577
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2016
record_format invenio
spelling oai-inspirehep.net-14705772022-08-10T12:48:20Zdoi:10.18429/JACoW-IPAC2016-THPMW035http://cds.cern.ch/record/2207464engFraser, MatthewBartmann, WolfgangBracco, ChiaraDucimetière, LaurentGoddard, BrennanKramer, ThomasSenaj, ViliamConsiderations on an Upgrade Possibility of the LHC Beam Dump Kicker SystemAccelerators and Storage RingsThe LHC Beam Dump System (LBDS) is designed to safely dispose the circulating beams over a wide range of energy from 450 GeV up to 7 TeV, where the maximum stored energy is 362 MJ per beam. One of the most critical components of the LBDS are the extraction kickers that must reliably switch on within the 3 us particle-free abort gap. To ensure this functionality, even in the event of a power-cut, the power generator capacitors remain charged and hence the Gate Turn-Off (GTO) switch stack has to hold the full voltage throughout beam operation. The increase of the LHC collision energy to 13 TeV has increased the voltage levels at the GTO stacks and during re-commissioning an increased rate of high-voltage (HV) related issues at the level of the GTO stack was observed. Different solutions have been analysed and an improved GTO stack will be implemented. This paper also outlines the benefit of adding more kicker magnets to improve the voltage hold off issues and to improve the tolerance to missing kickers during extraction.CERN-ACC-2016-159oai:inspirehep.net:14705772016
spellingShingle Accelerators and Storage Rings
Fraser, Matthew
Bartmann, Wolfgang
Bracco, Chiara
Ducimetière, Laurent
Goddard, Brennan
Kramer, Thomas
Senaj, Viliam
Considerations on an Upgrade Possibility of the LHC Beam Dump Kicker System
title Considerations on an Upgrade Possibility of the LHC Beam Dump Kicker System
title_full Considerations on an Upgrade Possibility of the LHC Beam Dump Kicker System
title_fullStr Considerations on an Upgrade Possibility of the LHC Beam Dump Kicker System
title_full_unstemmed Considerations on an Upgrade Possibility of the LHC Beam Dump Kicker System
title_short Considerations on an Upgrade Possibility of the LHC Beam Dump Kicker System
title_sort considerations on an upgrade possibility of the lhc beam dump kicker system
topic Accelerators and Storage Rings
url https://dx.doi.org/10.18429/JACoW-IPAC2016-THPMW035
http://cds.cern.ch/record/2207464
work_keys_str_mv AT frasermatthew considerationsonanupgradepossibilityofthelhcbeamdumpkickersystem
AT bartmannwolfgang considerationsonanupgradepossibilityofthelhcbeamdumpkickersystem
AT braccochiara considerationsonanupgradepossibilityofthelhcbeamdumpkickersystem
AT ducimetierelaurent considerationsonanupgradepossibilityofthelhcbeamdumpkickersystem
AT goddardbrennan considerationsonanupgradepossibilityofthelhcbeamdumpkickersystem
AT kramerthomas considerationsonanupgradepossibilityofthelhcbeamdumpkickersystem
AT senajviliam considerationsonanupgradepossibilityofthelhcbeamdumpkickersystem