Experimental results of the laserwire emittance scanner for LINAC4 at CERN

Within the framework of the LHC Injector Upgrade (LIU), the new LINAC4 is currently being commissioned to replace the existing LINAC2 proton source at CERN. After the expected completion at the end of 2016, the LINAC4 will accelerate H- ions to 160 MeV. To measure the transverse emittance of the H-...

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Detalles Bibliográficos
Autores principales: Hofmann, Thomas, Boorman, Gary E., Bosco, Alessio, Bravin, Enrico, Gibson, Stephen M., Kruchinin, Konstantin O., Raich, Uli, Roncarolo, Federico, Zocca, Francesca
Lenguaje:eng
Publicado: 2015
Materias:
Accelerators and Storage Rings
Acceso en línea:https://dx.doi.org/10.1016/j.nima.2016.02.018
http://cds.cern.ch/record/2103930
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author Hofmann, Thomas
Boorman, Gary E.
Bosco, Alessio
Bravin, Enrico
Gibson, Stephen M.
Kruchinin, Konstantin O.
Raich, Uli
Roncarolo, Federico
Zocca, Francesca
author_facet Hofmann, Thomas
Boorman, Gary E.
Bosco, Alessio
Bravin, Enrico
Gibson, Stephen M.
Kruchinin, Konstantin O.
Raich, Uli
Roncarolo, Federico
Zocca, Francesca
author_sort Hofmann, Thomas
collection CERN
description Within the framework of the LHC Injector Upgrade (LIU), the new LINAC4 is currently being commissioned to replace the existing LINAC2 proton source at CERN. After the expected completion at the end of 2016, the LINAC4 will accelerate H- ions to 160 MeV. To measure the transverse emittance of the H- beam, a method based on photo-detachment is proposed. This system will operate using a pulsed laser with light delivered via an optical fibre and subsequently focused through a thin slice of the H- beam. The laser photons have sufficient energy to detach the outer electron and create H0/e- pairs. In a downstream dipole, the created H0 particles are separated from the unstripped H- ions and their distribution is measured with a dedicated detector. By scanning the focused laser across the H- beam, the transverse emittance of the H- beam can be reconstructed. This paper will first discuss the concept, design and simulations of the laser
id cern-2103930
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2015
record_format invenio
spelling cern-21039302023-03-14T20:15:17Zdoi:10.1016/j.nima.2016.02.018http://cds.cern.ch/record/2103930engHofmann, ThomasBoorman, Gary E.Bosco, AlessioBravin, EnricoGibson, Stephen M.Kruchinin, Konstantin O.Raich, UliRoncarolo, FedericoZocca, FrancescaExperimental results of the laserwire emittance scanner for LINAC4 at CERNAccelerators and Storage RingsWithin the framework of the LHC Injector Upgrade (LIU), the new LINAC4 is currently being commissioned to replace the existing LINAC2 proton source at CERN. After the expected completion at the end of 2016, the LINAC4 will accelerate H- ions to 160 MeV. To measure the transverse emittance of the H- beam, a method based on photo-detachment is proposed. This system will operate using a pulsed laser with light delivered via an optical fibre and subsequently focused through a thin slice of the H- beam. The laser photons have sufficient energy to detach the outer electron and create H0/e- pairs. In a downstream dipole, the created H0 particles are separated from the unstripped H- ions and their distribution is measured with a dedicated detector. By scanning the focused laser across the H- beam, the transverse emittance of the H- beam can be reconstructed. This paper will first discuss the concept, design and simulations of the laserWithin the framework of the LHC Injector Upgrade (LIU), the new LINAC4 is currently being commissioned to replace the existing LINAC2 proton source at CERN. After the expected completion at the end of 2016, the LINAC4 will accelerate H − ions to 160 MeV. To measure the transverse emittance of the H − beam, a method based on photo-detachment is proposed. This system will operate using a pulsed laser with light delivered via an optical fibre and subsequently focused onto the H − beam. The laser photons have sufficient energy to detach the outer electron and create H 0 /e − pairs. In a downstream dipole, the created H 0 particles are separated from the unstripped H − ions and their distribution is measured with a dedicated detector. By scanning the focused laser beam across the H − beam, the transverse emittance of the H − beam can be reconstructed. This paper will first discuss the concept, design and simulations of the laser emittance scanner and then present results from a prototype system used during the 12 MeV commissioning of the LINAC4.Within the framework of the LHC Injector Upgrade (LIU), the new LINAC4 is currently being commissioned to replace the existing LINAC2 proton source at CERN. After the expected completion at the end of 2016, the LINAC4 will accelerate H- ions to 160 MeV. To measure the transverse emittance of the H- beam, a method based on photo-detachment is proposed. This system will operate using a pulsed laser with light delivered via an optical fibre and subsequently focused through a thin slice of the H- beam. The laser photons have sufficient energy to detach the outer electron and create H0/e- pairs. In a downstream dipole, the created H0 particles are separated from the unstripped H- ions and their distribution is measured with a dedicated detector. By scanning the focused laser across the H- beam, the transverse emittance of the H- beam can be reconstructed. This paper will first discuss the concept, design and simulations of the laserarXiv:1511.05876oai:cds.cern.ch:21039302015-11-18
spellingShingle Accelerators and Storage Rings
Hofmann, Thomas
Boorman, Gary E.
Bosco, Alessio
Bravin, Enrico
Gibson, Stephen M.
Kruchinin, Konstantin O.
Raich, Uli
Roncarolo, Federico
Zocca, Francesca
Experimental results of the laserwire emittance scanner for LINAC4 at CERN
title Experimental results of the laserwire emittance scanner for LINAC4 at CERN
title_full Experimental results of the laserwire emittance scanner for LINAC4 at CERN
title_fullStr Experimental results of the laserwire emittance scanner for LINAC4 at CERN
title_full_unstemmed Experimental results of the laserwire emittance scanner for LINAC4 at CERN
title_short Experimental results of the laserwire emittance scanner for LINAC4 at CERN
title_sort experimental results of the laserwire emittance scanner for linac4 at cern
topic Accelerators and Storage Rings
url https://dx.doi.org/10.1016/j.nima.2016.02.018
http://cds.cern.ch/record/2103930
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AT zoccafrancesca experimentalresultsofthelaserwireemittancescannerforlinac4atcern

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