Long term stability in hadron colliders in presence of synchrotron oscillations and tune ripple

The problem of long-term losses in hadron colliders such as the Large Hadron Collider (LHC) is considered. A previous formula that provides the reduction of dynamic aperture with the number of turns is generalized to include also the relevant cases of off-momentum and tune ripple. The dynamic apertu...

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Detalles Bibliográficos
Autores principales: Scandale, Walter, Todesco, Ezio
Lenguaje:eng
Publicado: 1998
Materias:
Accelerators and Storage Rings
Acceso en línea:http://cds.cern.ch/record/367980
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author Scandale, Walter
Todesco, Ezio
author_facet Scandale, Walter
Todesco, Ezio
author_sort Scandale, Walter
collection CERN
description The problem of long-term losses in hadron colliders such as the Large Hadron Collider (LHC) is considered. A previous formula that provides the reduction of dynamic aperture with the number of turns is generalized to include also the relevant cases of off-momentum and tune ripple. The dynamic aperture turns out to shrink with a power of the inverse logarithm of the number of turns. Long-term tracking data of the LHC are analysed in this framework. The formula proves to hold in all cases, and the possibility of using its extrapolation to predict long-term losses are explored.
id cern-367980
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 1998
record_format invenio
spelling cern-3679802023-05-31T13:24:32Zhttp://cds.cern.ch/record/367980engScandale, WalterTodesco, EzioLong term stability in hadron colliders in presence of synchrotron oscillations and tune rippleAccelerators and Storage RingsThe problem of long-term losses in hadron colliders such as the Large Hadron Collider (LHC) is considered. A previous formula that provides the reduction of dynamic aperture with the number of turns is generalized to include also the relevant cases of off-momentum and tune ripple. The dynamic aperture turns out to shrink with a power of the inverse logarithm of the number of turns. Long-term tracking data of the LHC are analysed in this framework. The formula proves to hold in all cases, and the possibility of using its extrapolation to predict long-term losses are explored.LHC-Project-Report-227CERN-LHC-Project-Report-227oai:cds.cern.ch:3679801998-08-20
spellingShingle Accelerators and Storage Rings
Scandale, Walter
Todesco, Ezio
Long term stability in hadron colliders in presence of synchrotron oscillations and tune ripple
title Long term stability in hadron colliders in presence of synchrotron oscillations and tune ripple
title_full Long term stability in hadron colliders in presence of synchrotron oscillations and tune ripple
title_fullStr Long term stability in hadron colliders in presence of synchrotron oscillations and tune ripple
title_full_unstemmed Long term stability in hadron colliders in presence of synchrotron oscillations and tune ripple
title_short Long term stability in hadron colliders in presence of synchrotron oscillations and tune ripple
title_sort long term stability in hadron colliders in presence of synchrotron oscillations and tune ripple
topic Accelerators and Storage Rings
url http://cds.cern.ch/record/367980
work_keys_str_mv AT scandalewalter longtermstabilityinhadroncollidersinpresenceofsynchrotronoscillationsandtuneripple
AT todescoezio longtermstabilityinhadroncollidersinpresenceofsynchrotronoscillationsandtuneripple

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