Status of the short dipole model program for the LHC

Author

Artoos, K. ; Bottura, L. ; Fessia, P. ; Perini, D. ; Sanfilippo, S. ; Siegel, N. ; Siemko, A. ; Tommasini, D. ; Vanenkov, I. ; Walckiers, L. ; Wyss, C.

Author_Institution

CERN, Geneva, Switzerland

Volume

10

Issue

1

fYear

2000

fDate

3/1/2000 12:00:00 AM

Firstpage

49

Lastpage

52

Abstract

The model program for the LHC main dipoles is dedicated to the study and validation of design variants and assembly parameters to achieve reproducible performance and optimise components and assembly costs. The topics investigated in the last year include the material of the coil end spacers, the use of polyimide films from different manufacturers, the definition of optimum azimuthal and longitudinal coil pre-stress values, shimming of coil ends, collaring around the "cold bore" and different layouts of the yoke ends. This paper presents the main characteristics of such recent models, the results obtained during cold tests and the plans for the final phase of the model program for the LHC dipoles.

Keywords

accelerator magnets; colliding beam accelerators; proton accelerators; storage rings; superconducting magnets; LHC; LHC main dipoles; coil end spacers; cold bore; optimum azimuthal coil pre-stress values; optimum longitudinal coil pre-stress values; polyimide films; short dipole model program; yoke ends; Apertures; Boring; Coils; Large Hadron Collider; Magnets; Polyimides; Protection; Steel; Temperature; Testing;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.828173

Filename

828173