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Prospects for an optical re-triggering system for the LHC beam dumping system at CERN

The LHC (Large Hadron Collider) beam extraction kicker system, composed of 15 fast kicker magnets per beam, is used to extract the particles in one turn from the collider and to dispose of them, after dilution, on an external absorber. Each of the 15 magnets is powered by a separate pulse generator,...

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Autores principales: Rodziewicz, J, Carlier, E, Fowler, T, Goddard, B, Magnin, N, Rabot, O
Lenguaje:eng
Publicado: 2018
Materias:
Acceso en línea:https://dx.doi.org/10.1109/PPC.2017.8291250
http://cds.cern.ch/record/2311932
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author Rodziewicz, J
Carlier, E
Fowler, T
Goddard, B
Magnin, N
Rabot, O
author_facet Rodziewicz, J
Carlier, E
Fowler, T
Goddard, B
Magnin, N
Rabot, O
author_sort Rodziewicz, J
collection CERN
description The LHC (Large Hadron Collider) beam extraction kicker system, composed of 15 fast kicker magnets per beam, is used to extract the particles in one turn from the collider and to dispose of them, after dilution, on an external absorber. Each of the 15 magnets is powered by a separate pulse generator, all of which are simultaneously triggered when a beam extraction from the machine is requested. Spontaneous firing of a single generator will create beam oscillations that are likely to exceed the accelerator aperture, resulting in beam losses and potential damage to the machine. In order to protect against occurrence of such events, a Re-Triggering System (RTS) has been implemented to redistribute, as fast as possible, a trigger request issued from the spontaneous-firing generator to all 15 generators. A prospect for a RTS based on passively generated and transmitted optical power to all others generators has been studied as an alternative to existing re-triggering line solution. This can be accomplished by coupling light from a number of diode laser arrays at re-trigger sources of one generator to bundles of optical fibres subsequently dispatched to all 15 generators. At each generator control stage we foresee a re-triggering switch which ensures the conversion of the light signal into an isolated electrical triggering pulse.
id oai-inspirehep.net-1665659
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2018
record_format invenio
spelling oai-inspirehep.net-16656592019-09-30T06:29:59Zdoi:10.1109/PPC.2017.8291250http://cds.cern.ch/record/2311932engRodziewicz, JCarlier, EFowler, TGoddard, BMagnin, NRabot, OProspects for an optical re-triggering system for the LHC beam dumping system at CERNAccelerators and Storage RingsThe LHC (Large Hadron Collider) beam extraction kicker system, composed of 15 fast kicker magnets per beam, is used to extract the particles in one turn from the collider and to dispose of them, after dilution, on an external absorber. Each of the 15 magnets is powered by a separate pulse generator, all of which are simultaneously triggered when a beam extraction from the machine is requested. Spontaneous firing of a single generator will create beam oscillations that are likely to exceed the accelerator aperture, resulting in beam losses and potential damage to the machine. In order to protect against occurrence of such events, a Re-Triggering System (RTS) has been implemented to redistribute, as fast as possible, a trigger request issued from the spontaneous-firing generator to all 15 generators. A prospect for a RTS based on passively generated and transmitted optical power to all others generators has been studied as an alternative to existing re-triggering line solution. This can be accomplished by coupling light from a number of diode laser arrays at re-trigger sources of one generator to bundles of optical fibres subsequently dispatched to all 15 generators. At each generator control stage we foresee a re-triggering switch which ensures the conversion of the light signal into an isolated electrical triggering pulse.oai:inspirehep.net:16656592018
spellingShingle Accelerators and Storage Rings
Rodziewicz, J
Carlier, E
Fowler, T
Goddard, B
Magnin, N
Rabot, O
Prospects for an optical re-triggering system for the LHC beam dumping system at CERN
title Prospects for an optical re-triggering system for the LHC beam dumping system at CERN
title_full Prospects for an optical re-triggering system for the LHC beam dumping system at CERN
title_fullStr Prospects for an optical re-triggering system for the LHC beam dumping system at CERN
title_full_unstemmed Prospects for an optical re-triggering system for the LHC beam dumping system at CERN
title_short Prospects for an optical re-triggering system for the LHC beam dumping system at CERN
title_sort prospects for an optical re-triggering system for the lhc beam dumping system at cern
topic Accelerators and Storage Rings
url https://dx.doi.org/10.1109/PPC.2017.8291250
http://cds.cern.ch/record/2311932
work_keys_str_mv AT rodziewiczj prospectsforanopticalretriggeringsystemforthelhcbeamdumpingsystematcern
AT carliere prospectsforanopticalretriggeringsystemforthelhcbeamdumpingsystematcern
AT fowlert prospectsforanopticalretriggeringsystemforthelhcbeamdumpingsystematcern
AT goddardb prospectsforanopticalretriggeringsystemforthelhcbeamdumpingsystematcern
AT magninn prospectsforanopticalretriggeringsystemforthelhcbeamdumpingsystematcern
AT raboto prospectsforanopticalretriggeringsystemforthelhcbeamdumpingsystematcern