Effect of pulsed hollow electron-lens operation on the proton beam core in LHC

Collimation with hollow electron beams is currently one of the most promising concepts for active halo control in the HL-LHC. In order to further increase the diffusion rates for a fast halo removal as e.g. desired before the squeeze, the electron lens (e-lens) can be operated in pulsed mode. In cas...

Descripción completa

Detalles Bibliográficos
Autores principales: Fitterer, Miriam, Stancari, Giulio, Valishev, Alexander
Lenguaje:eng
Publicado: 2016
Materias:
Accelerators and Storage Rings
Acceso en línea:http://cds.cern.ch/record/2231503
_version_ 1780952628430110720
author Fitterer, Miriam
Stancari, Giulio
Valishev, Alexander
author_facet Fitterer, Miriam
Stancari, Giulio
Valishev, Alexander
author_sort Fitterer, Miriam
collection CERN
description Collimation with hollow electron beams is currently one of the most promising concepts for active halo control in the HL-LHC. In order to further increase the diffusion rates for a fast halo removal as e.g. desired before the squeeze, the electron lens (e-lens) can be operated in pulsed mode. In case of profile imperfections in the electron beam the pulsing of the e-lens induces noise on the proton beam which can, depending on the frequency content and strength, lead to emittance growth. In order to study the sensitivity to the pulsing pattern and the amplitude, a beam study (machine development MD) at the LHC has been proposed for August 2016 and we present in this note the preparatory simulations and estimates.
id cern-2231503
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2016
record_format invenio
spelling cern-22315032021-05-03T08:18:04Zhttp://cds.cern.ch/record/2231503engFitterer, MiriamStancari, GiulioValishev, AlexanderEffect of pulsed hollow electron-lens operation on the proton beam core in LHCAccelerators and Storage RingsCollimation with hollow electron beams is currently one of the most promising concepts for active halo control in the HL-LHC. In order to further increase the diffusion rates for a fast halo removal as e.g. desired before the squeeze, the electron lens (e-lens) can be operated in pulsed mode. In case of profile imperfections in the electron beam the pulsing of the e-lens induces noise on the proton beam which can, depending on the frequency content and strength, lead to emittance growth. In order to study the sensitivity to the pulsing pattern and the amplitude, a beam study (machine development MD) at the LHC has been proposed for August 2016 and we present in this note the preparatory simulations and estimates.Collimation with hollow electron beams is currently one of the most promising concepts for active halo control in the HL-LHC. In order to further increase the diffusion rates for a fast halo removal as e.g. desired before the squeeze, the electron lens (e-lens) can be operated in pulsed mode. In case of profile imperfections in the electron beam the pulsing of the e-lens induces noise on the proton beam which can, depending on the frequency content and strength, lead to emittance growth. In order to study the sensitivity to the pulsing pattern and the amplitude, a beam study (machine development MD) at the LHC has been proposed for August 2016 and we present in this note the preparatory simulations and estimates.FERMILAB-TM-2635-ADarXiv:1611.02678FERMILAB-TM-2635-ADoai:cds.cern.ch:22315032016-11-08
spellingShingle Accelerators and Storage Rings
Fitterer, Miriam
Stancari, Giulio
Valishev, Alexander
Effect of pulsed hollow electron-lens operation on the proton beam core in LHC
title Effect of pulsed hollow electron-lens operation on the proton beam core in LHC
title_full Effect of pulsed hollow electron-lens operation on the proton beam core in LHC
title_fullStr Effect of pulsed hollow electron-lens operation on the proton beam core in LHC
title_full_unstemmed Effect of pulsed hollow electron-lens operation on the proton beam core in LHC
title_short Effect of pulsed hollow electron-lens operation on the proton beam core in LHC
title_sort effect of pulsed hollow electron-lens operation on the proton beam core in lhc
topic Accelerators and Storage Rings
url http://cds.cern.ch/record/2231503
work_keys_str_mv AT fitterermiriam effectofpulsedhollowelectronlensoperationontheprotonbeamcoreinlhc
AT stancarigiulio effectofpulsedhollowelectronlensoperationontheprotonbeamcoreinlhc
AT valishevalexander effectofpulsedhollowelectronlensoperationontheprotonbeamcoreinlhc

Ejemplares similares