The Magnetic Model of the LHC in the Early Phase of Beam Commissioning

The relation between field and current in each family of the Large Hadron Collider magnets is modelled with a set of empirical equations (FiDeL) whose free parameters are fit on magnetic measurements. They take into account residual magnetization, persistent currents, hysteresis, saturation, decay a...

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Detalles Bibliográficos
Autores principales: Todesco, E, Aquilina, N, Auchmann, B, Bottura, L, Buzio, M, Chritin, R, Deferne, G, Deniau, L, Fiscarelli, L, Hagen, P, Garcia Perez, J, Giovannozzi, M, Lamont, M, Montenero, G, Muller, G, Pereira, M, Redaelli, S, Remondino, V, Sammut, N, Schmidt, F, Steinhagen, R, Strzelczyk, M, Tomas, R, Venturini Delsolaro, W, Wenninger, J, Wolf, R
Lenguaje:eng
Publicado: 2010
Materias:
Accelerators and Storage Rings
Acceso en línea:http://cds.cern.ch/record/1277918
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author Todesco, E
Aquilina, N
Auchmann, B
Bottura, L
Buzio, M
Chritin, R
Deferne, G
Deniau, L
Fiscarelli, L
Hagen, P
Garcia Perez, J
Giovannozzi, M
Lamont, M
Montenero, G
Muller, G
Pereira, M
Redaelli, S
Remondino, V
Sammut, N
Schmidt, F
Steinhagen, R
Strzelczyk, M
Tomas, R
Venturini Delsolaro, W
Wenninger, J
Wolf, R
author_facet Todesco, E
Aquilina, N
Auchmann, B
Bottura, L
Buzio, M
Chritin, R
Deferne, G
Deniau, L
Fiscarelli, L
Hagen, P
Garcia Perez, J
Giovannozzi, M
Lamont, M
Montenero, G
Muller, G
Pereira, M
Redaelli, S
Remondino, V
Sammut, N
Schmidt, F
Steinhagen, R
Strzelczyk, M
Tomas, R
Venturini Delsolaro, W
Wenninger, J
Wolf, R
author_sort Todesco, E
collection CERN
description The relation between field and current in each family of the Large Hadron Collider magnets is modelled with a set of empirical equations (FiDeL) whose free parameters are fit on magnetic measurements. They take into account residual magnetization, persistent currents, hysteresis, saturation, decay and snapback during initial part of the ramp. Here we give a first summary of the reconstruction of the magnetic field properties based on the beam observables (orbit, tune, coupling, chromaticity) and a comparison with the expectations. The most critical issues for the machine performance in terms of knowledge of the relation magnetic field vs current are pointed out.
id cern-1277918
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2010
record_format invenio
spelling cern-12779182022-08-17T13:33:07Zhttp://cds.cern.ch/record/1277918engTodesco, EAquilina, NAuchmann, BBottura, LBuzio, MChritin, RDeferne, GDeniau, LFiscarelli, LHagen, PGarcia Perez, JGiovannozzi, MLamont, MMontenero, GMuller, GPereira, MRedaelli, SRemondino, VSammut, NSchmidt, FSteinhagen, RStrzelczyk, MTomas, RVenturini Delsolaro, WWenninger, JWolf, RThe Magnetic Model of the LHC in the Early Phase of Beam CommissioningAccelerators and Storage RingsThe relation between field and current in each family of the Large Hadron Collider magnets is modelled with a set of empirical equations (FiDeL) whose free parameters are fit on magnetic measurements. They take into account residual magnetization, persistent currents, hysteresis, saturation, decay and snapback during initial part of the ramp. Here we give a first summary of the reconstruction of the magnetic field properties based on the beam observables (orbit, tune, coupling, chromaticity) and a comparison with the expectations. The most critical issues for the machine performance in terms of knowledge of the relation magnetic field vs current are pointed out.CERN-ATS-2010-154oai:cds.cern.ch:12779182010-06-01
spellingShingle Accelerators and Storage Rings
Todesco, E
Aquilina, N
Auchmann, B
Bottura, L
Buzio, M
Chritin, R
Deferne, G
Deniau, L
Fiscarelli, L
Hagen, P
Garcia Perez, J
Giovannozzi, M
Lamont, M
Montenero, G
Muller, G
Pereira, M
Redaelli, S
Remondino, V
Sammut, N
Schmidt, F
Steinhagen, R
Strzelczyk, M
Tomas, R
Venturini Delsolaro, W
Wenninger, J
Wolf, R
The Magnetic Model of the LHC in the Early Phase of Beam Commissioning
title The Magnetic Model of the LHC in the Early Phase of Beam Commissioning
title_full The Magnetic Model of the LHC in the Early Phase of Beam Commissioning
title_fullStr The Magnetic Model of the LHC in the Early Phase of Beam Commissioning
title_full_unstemmed The Magnetic Model of the LHC in the Early Phase of Beam Commissioning
title_short The Magnetic Model of the LHC in the Early Phase of Beam Commissioning
title_sort magnetic model of the lhc in the early phase of beam commissioning
topic Accelerators and Storage Rings
url http://cds.cern.ch/record/1277918
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