First Observation of the LHC Beam Halo Using a Synchrotron Radiation Coronagraph

A test coronagraph for the observation of beam halo has been installed in the Synchrotron radiation monitor line LHCB2 in 2015. This coronagraph is commissioned with LHC operation at 450GeV (injection energy). After some optical testing of the coronagraph with visible Synchrotron radiation in B2, we...

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Detalles Bibliográficos
Autores principales: Mitsuhashi, Toshiyuki, Bravin, Enrico, Roncarolo, Federico, Trad, Georges
Lenguaje:eng
Publicado: 2017
Materias:
Accelerators and Storage Rings
Acceso en línea:https://dx.doi.org/10.18429/JACoW-IPAC2017-TUOAB2
http://cds.cern.ch/record/2287344
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author Mitsuhashi, Toshiyuki
Bravin, Enrico
Roncarolo, Federico
Trad, Georges
author_facet Mitsuhashi, Toshiyuki
Bravin, Enrico
Roncarolo, Federico
Trad, Georges
author_sort Mitsuhashi, Toshiyuki
collection CERN
description A test coronagraph for the observation of beam halo has been installed in the Synchrotron radiation monitor line LHCB2 in 2015. This coronagraph is commissioned with LHC operation at 450GeV (injection energy). After some optical testing of the coronagraph with visible Synchrotron radiation in B2, we try to observe artificially-made beam halo. The beam halo of 10⁻³ order of magnitude against the beam core is excited by the kicker of the transverse damper. We have succeeded to observe a diffraction noise free image of beam halo. The effect of beam collimator is also observed. Reduction of beam halo intensity was found nicely proportional to the simultaneously-recorded beam loss.
id oai-inspirehep.net-1626217
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2017
record_format invenio
spelling oai-inspirehep.net-16262172019-09-30T06:29:59Zdoi:10.18429/JACoW-IPAC2017-TUOAB2http://cds.cern.ch/record/2287344engMitsuhashi, ToshiyukiBravin, EnricoRoncarolo, FedericoTrad, GeorgesFirst Observation of the LHC Beam Halo Using a Synchrotron Radiation CoronagraphAccelerators and Storage RingsA test coronagraph for the observation of beam halo has been installed in the Synchrotron radiation monitor line LHCB2 in 2015. This coronagraph is commissioned with LHC operation at 450GeV (injection energy). After some optical testing of the coronagraph with visible Synchrotron radiation in B2, we try to observe artificially-made beam halo. The beam halo of 10⁻³ order of magnitude against the beam core is excited by the kicker of the transverse damper. We have succeeded to observe a diffraction noise free image of beam halo. The effect of beam collimator is also observed. Reduction of beam halo intensity was found nicely proportional to the simultaneously-recorded beam loss.CERN-ACC-2017-295oai:inspirehep.net:16262172017
spellingShingle Accelerators and Storage Rings
Mitsuhashi, Toshiyuki
Bravin, Enrico
Roncarolo, Federico
Trad, Georges
First Observation of the LHC Beam Halo Using a Synchrotron Radiation Coronagraph
title First Observation of the LHC Beam Halo Using a Synchrotron Radiation Coronagraph
title_full First Observation of the LHC Beam Halo Using a Synchrotron Radiation Coronagraph
title_fullStr First Observation of the LHC Beam Halo Using a Synchrotron Radiation Coronagraph
title_full_unstemmed First Observation of the LHC Beam Halo Using a Synchrotron Radiation Coronagraph
title_short First Observation of the LHC Beam Halo Using a Synchrotron Radiation Coronagraph
title_sort first observation of the lhc beam halo using a synchrotron radiation coronagraph
topic Accelerators and Storage Rings
url https://dx.doi.org/10.18429/JACoW-IPAC2017-TUOAB2
http://cds.cern.ch/record/2287344
work_keys_str_mv AT mitsuhashitoshiyuki firstobservationofthelhcbeamhalousingasynchrotronradiationcoronagraph
AT bravinenrico firstobservationofthelhcbeamhalousingasynchrotronradiationcoronagraph
AT roncarolofederico firstobservationofthelhcbeamhalousingasynchrotronradiationcoronagraph
AT tradgeorges firstobservationofthelhcbeamhalousingasynchrotronradiationcoronagraph

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