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Status of the short dipole model program for the LHC

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11 Author(s)
K. Artoos ; CERN, Geneva, Switzerland ; L. Bottura ; P. Fessia ; D. Perini
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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.

Published in:

IEEE Transactions on Applied Superconductivity  (Volume:10 ,  Issue: 1 )