Steering the Field Quality in the Production of the Main Quadrupoles of the Large Hadron Collider

The main issues concerning the field quality in the main quadrupoles of the Large Hadron Collider are presented. We show the trend plots for the focusing strength and multipoles at room temperature covering more than 2/3 of the production. We describe the correction of the coil layout to improve b6...

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Detalles Bibliográficos
Autores principales: Hagen, P, Bottura, L, Calvi, M, Sanfilippo, S, Schirm, K, Todesco, E, Tortschanoff, Theodor, Simon, F
Lenguaje:eng
Publicado: 2006
Materias:
Accelerators and Storage Rings
Acceso en línea:http://cds.cern.ch/record/970379
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author Hagen, P
Bottura, L
Calvi, M
Sanfilippo, S
Schirm, K
Todesco, E
Tortschanoff, Theodor
Simon, F
author_facet Hagen, P
Bottura, L
Calvi, M
Sanfilippo, S
Schirm, K
Todesco, E
Tortschanoff, Theodor
Simon, F
author_sort Hagen, P
collection CERN
description The main issues concerning the field quality in the main quadrupoles of the Large Hadron Collider are presented. We show the trend plots for the focusing strength and multipoles at room temperature covering more than 2/3 of the production. We describe the correction of the coil layout to improve b6 at injection field level. A non-negligible fraction of the quadrupoles has been manufactured with collars featuring a magnetic permeability somewhat higher than the specified limits. We show plots for this anomaly. Field quality correlations to measurements in operational conditions are discussed. The dependence of field quality on cable manufacturer is analysed
id cern-970379
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2006
record_format invenio
spelling cern-9703792023-05-31T13:22:00Zhttp://cds.cern.ch/record/970379engHagen, PBottura, LCalvi, MSanfilippo, SSchirm, KTodesco, ETortschanoff, TheodorSimon, FSteering the Field Quality in the Production of the Main Quadrupoles of the Large Hadron ColliderAccelerators and Storage RingsThe main issues concerning the field quality in the main quadrupoles of the Large Hadron Collider are presented. We show the trend plots for the focusing strength and multipoles at room temperature covering more than 2/3 of the production. We describe the correction of the coil layout to improve b6 at injection field level. A non-negligible fraction of the quadrupoles has been manufactured with collars featuring a magnetic permeability somewhat higher than the specified limits. We show plots for this anomaly. Field quality correlations to measurements in operational conditions are discussed. The dependence of field quality on cable manufacturer is analysedLHC-PROJECT-Report-886CERN-LHC-Project-Report-886oai:cds.cern.ch:9703792006-05-19
spellingShingle Accelerators and Storage Rings
Hagen, P
Bottura, L
Calvi, M
Sanfilippo, S
Schirm, K
Todesco, E
Tortschanoff, Theodor
Simon, F
Steering the Field Quality in the Production of the Main Quadrupoles of the Large Hadron Collider
title Steering the Field Quality in the Production of the Main Quadrupoles of the Large Hadron Collider
title_full Steering the Field Quality in the Production of the Main Quadrupoles of the Large Hadron Collider
title_fullStr Steering the Field Quality in the Production of the Main Quadrupoles of the Large Hadron Collider
title_full_unstemmed Steering the Field Quality in the Production of the Main Quadrupoles of the Large Hadron Collider
title_short Steering the Field Quality in the Production of the Main Quadrupoles of the Large Hadron Collider
title_sort steering the field quality in the production of the main quadrupoles of the large hadron collider
topic Accelerators and Storage Rings
url http://cds.cern.ch/record/970379
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