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Experimental Characterisation of a Fast Instability Linked to Losses in the 16L2 Cryogenic Half-Cell in the CERN LHC

The operation during the summer months of the 2017 Run of the CERN LHC was plagued with fast beam losses that repeatedly occurred in the 16th arc half-cell at the left of IP2 as well as in the collimation insertion, leading to unwanted beam dumps. Transverse coherent oscillations were observed durin...

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Autores principales: Salvant, Benoit, Antipov, Sergey, Arduini, Gianluigi, Biancacci, Nicolo, Buffat, Xavier, Carver, Lee, Collier, Paul, Gorzawski, Arkadiusz, Höfle, Wolfgang, Iadarola, Giovanni, Kotzian, Gerd, Lechner, Anton, Levens, Thomas, Mether, Lotta, Mirarchi, Daniele, Métral, Elias, Rumolo, Giovanni, Valuch, Daniel
Lenguaje:eng
Publicado: 2018
Materias:
Acceso en línea:https://dx.doi.org/10.18429/JACoW-IPAC2018-THPAF058
http://cds.cern.ch/record/2646056
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author Salvant, Benoit
Antipov, Sergey
Arduini, Gianluigi
Biancacci, Nicolo
Buffat, Xavier
Carver, Lee
Collier, Paul
Gorzawski, Arkadiusz
Höfle, Wolfgang
Iadarola, Giovanni
Kotzian, Gerd
Lechner, Anton
Levens, Thomas
Mether, Lotta
Mirarchi, Daniele
Métral, Elias
Rumolo, Giovanni
Valuch, Daniel
author_facet Salvant, Benoit
Antipov, Sergey
Arduini, Gianluigi
Biancacci, Nicolo
Buffat, Xavier
Carver, Lee
Collier, Paul
Gorzawski, Arkadiusz
Höfle, Wolfgang
Iadarola, Giovanni
Kotzian, Gerd
Lechner, Anton
Levens, Thomas
Mether, Lotta
Mirarchi, Daniele
Métral, Elias
Rumolo, Giovanni
Valuch, Daniel
author_sort Salvant, Benoit
collection CERN
description The operation during the summer months of the 2017 Run of the CERN LHC was plagued with fast beam losses that repeatedly occurred in the 16th arc half-cell at the left of IP2 as well as in the collimation insertion, leading to unwanted beam dumps. Transverse coherent oscillations were observed during this fast process. We detail here the experimental observations of coherent motion that al-lowed shedding light upon parts of the mechanism and identify the potential mitigations that were successfully implemented in the second half of the Run.
id oai-inspirehep.net-1690278
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2018
record_format invenio
spelling oai-inspirehep.net-16902782019-09-30T06:29:59Zdoi:10.18429/JACoW-IPAC2018-THPAF058http://cds.cern.ch/record/2646056engSalvant, BenoitAntipov, SergeyArduini, GianluigiBiancacci, NicoloBuffat, XavierCarver, LeeCollier, PaulGorzawski, ArkadiuszHöfle, WolfgangIadarola, GiovanniKotzian, GerdLechner, AntonLevens, ThomasMether, LottaMirarchi, DanieleMétral, EliasRumolo, GiovanniValuch, DanielExperimental Characterisation of a Fast Instability Linked to Losses in the 16L2 Cryogenic Half-Cell in the CERN LHCAccelerators and Storage RingsThe operation during the summer months of the 2017 Run of the CERN LHC was plagued with fast beam losses that repeatedly occurred in the 16th arc half-cell at the left of IP2 as well as in the collimation insertion, leading to unwanted beam dumps. Transverse coherent oscillations were observed during this fast process. We detail here the experimental observations of coherent motion that al-lowed shedding light upon parts of the mechanism and identify the potential mitigations that were successfully implemented in the second half of the Run.CERN-ACC-2018-175oai:inspirehep.net:16902782018
spellingShingle Accelerators and Storage Rings
Salvant, Benoit
Antipov, Sergey
Arduini, Gianluigi
Biancacci, Nicolo
Buffat, Xavier
Carver, Lee
Collier, Paul
Gorzawski, Arkadiusz
Höfle, Wolfgang
Iadarola, Giovanni
Kotzian, Gerd
Lechner, Anton
Levens, Thomas
Mether, Lotta
Mirarchi, Daniele
Métral, Elias
Rumolo, Giovanni
Valuch, Daniel
Experimental Characterisation of a Fast Instability Linked to Losses in the 16L2 Cryogenic Half-Cell in the CERN LHC
title Experimental Characterisation of a Fast Instability Linked to Losses in the 16L2 Cryogenic Half-Cell in the CERN LHC
title_full Experimental Characterisation of a Fast Instability Linked to Losses in the 16L2 Cryogenic Half-Cell in the CERN LHC
title_fullStr Experimental Characterisation of a Fast Instability Linked to Losses in the 16L2 Cryogenic Half-Cell in the CERN LHC
title_full_unstemmed Experimental Characterisation of a Fast Instability Linked to Losses in the 16L2 Cryogenic Half-Cell in the CERN LHC
title_short Experimental Characterisation of a Fast Instability Linked to Losses in the 16L2 Cryogenic Half-Cell in the CERN LHC
title_sort experimental characterisation of a fast instability linked to losses in the 16l2 cryogenic half-cell in the cern lhc
topic Accelerators and Storage Rings
url https://dx.doi.org/10.18429/JACoW-IPAC2018-THPAF058
http://cds.cern.ch/record/2646056
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