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Title: Mechanical Design of a Second Generation LHC IR Quadrupole

Abstract

One of the proposed options to increase the LHC luminosity is the replacement of the existing inner triplets at the Interaction Regions with new low-beta larger aperture quadrupoles operating at the same gradient. Lawrence Berkeley National Laboratory (LBNL) is carrying out preliminary studies of a large-bore Nb{sub 3}Sn quadrupole. The mechanical design presents a support structure based on the use of keys and bladders without self-supporting collars. This technology has been proven effective in several successful common coil Nb{sub 3}Sn dipoles built at LBNL, and it is for the first time applied to a cos(2{var_theta}) design. In this paper we present a detailed analysis of the quadrupole mechanical behavior, demonstrating the possibility of delivering, through this method, well-controlled coil precompression during assembly, cool-down and excitation. The study has been performed with the finite element program ANSYS.

Authors:
; ; ; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Ernest Orlando Lawrence Berkeley NationalLaboratory, Berkeley, CA (US)
Sponsoring Org.:
USDOE Director. Office of Science. Office of High EnergyPhysics
OSTI Identifier:
881829
Report Number(s):
LBNL-53131
R&D Project: 454001; BnR: KA1502010; TRN: US0602947
DOE Contract Number:  
DE-AC02-05CH11231
Resource Type:
Conference
Resource Relation:
Conference: Magnet Technology 18, Niruija, Japan, Oct. 20-24,2003
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; APERTURES; DESIGN; DIPOLES; EXCITATION; LUMINOSITY; MAGNETS; QUADRUPOLES; TRIPLETS

Citation Formats

Caspi, S., Bartlett, S.E., Dietderich, D.R., Ferracin, P., Gourlay, S.A., Hafalia, R.R., Hannaford, C.R., Lietzke, A.F., McInturff,A.D., Sabbi, G., and Scanlan, R.M. Mechanical Design of a Second Generation LHC IR Quadrupole. United States: N. p., 2003. Web.
Caspi, S., Bartlett, S.E., Dietderich, D.R., Ferracin, P., Gourlay, S.A., Hafalia, R.R., Hannaford, C.R., Lietzke, A.F., McInturff,A.D., Sabbi, G., & Scanlan, R.M. Mechanical Design of a Second Generation LHC IR Quadrupole. United States.
Caspi, S., Bartlett, S.E., Dietderich, D.R., Ferracin, P., Gourlay, S.A., Hafalia, R.R., Hannaford, C.R., Lietzke, A.F., McInturff,A.D., Sabbi, G., and Scanlan, R.M. Mon . "Mechanical Design of a Second Generation LHC IR Quadrupole". United States. https://www.osti.gov/servlets/purl/881829.
@article{osti_881829,
title = {Mechanical Design of a Second Generation LHC IR Quadrupole},
author = {Caspi, S. and Bartlett, S.E. and Dietderich, D.R. and Ferracin, P. and Gourlay, S.A. and Hafalia, R.R. and Hannaford, C.R. and Lietzke, A.F. and McInturff,A.D. and Sabbi, G. and Scanlan, R.M.},
abstractNote = {One of the proposed options to increase the LHC luminosity is the replacement of the existing inner triplets at the Interaction Regions with new low-beta larger aperture quadrupoles operating at the same gradient. Lawrence Berkeley National Laboratory (LBNL) is carrying out preliminary studies of a large-bore Nb{sub 3}Sn quadrupole. The mechanical design presents a support structure based on the use of keys and bladders without self-supporting collars. This technology has been proven effective in several successful common coil Nb{sub 3}Sn dipoles built at LBNL, and it is for the first time applied to a cos(2{var_theta}) design. In this paper we present a detailed analysis of the quadrupole mechanical behavior, demonstrating the possibility of delivering, through this method, well-controlled coil precompression during assembly, cool-down and excitation. The study has been performed with the finite element program ANSYS.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2003},
month = {11}
}

Conference:
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