Fermi lab is developing Nb(3)Sn quadrupole magnets for the planned upgrade of interaction regions of the Large Hadron Collider (LHC). Two distinctly different approaches have been employed, one using quadrupole-symmetric and one using dipole-symmetric collar laminations. This paper describes the design features of both collar types, collaring techniques for brittle Nb(3)Sn coils, and compares the advantages and disadvantages of the two approaches. Results of mechanical analysis for quadrupoles based on dipole-type and quadrupole-type collars are presented. Magnet construction issues and test results are reported. Test results include coil and component strain measurements during construction. Plans for the completion and test of the first dipole-symmetric assembly are described.
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Kobe Steel Ltd, Tech Dev Grp, Elect Res Lab, Superconduct Res Sect, Kobe, Hyogo, JapanKobe Steel Ltd, Tech Dev Grp, Elect Res Lab, Superconduct Res Sect, Kobe, Hyogo, Japan
Miyazaki, Takayoshi
Miyatake, Takayuki
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Kobe Steel Ltd, Tech Dev Grp, Elect Res Lab, Superconduct Res Sect, Kobe, Hyogo, JapanKobe Steel Ltd, Tech Dev Grp, Elect Res Lab, Superconduct Res Sect, Kobe, Hyogo, Japan
Miyatake, Takayuki
Kato, Hiroyuki
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Kobe Steel Ltd, Tech Dev Grp, Elect Res Lab, Superconduct Res Sect, Kobe, Hyogo, JapanKobe Steel Ltd, Tech Dev Grp, Elect Res Lab, Superconduct Res Sect, Kobe, Hyogo, Japan
Kato, Hiroyuki
Zaitsu, Kyoji
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Kobe Steel Ltd, Tech Dev Grp, Elect Res Lab, Superconduct Res Sect, Kobe, Hyogo, JapanKobe Steel Ltd, Tech Dev Grp, Elect Res Lab, Superconduct Res Sect, Kobe, Hyogo, Japan
Zaitsu, Kyoji
Murakami, Yukinobu
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Japan Superconductor Technol Inc JASTEC, Nishi Ku, Kobe, Hyogo 6512271, JapanKobe Steel Ltd, Tech Dev Grp, Elect Res Lab, Superconduct Res Sect, Kobe, Hyogo, Japan
Murakami, Yukinobu
Hase, Takashi
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Japan Superconductor Technol Inc JASTEC, Nishi Ku, Kobe, Hyogo 6512271, JapanKobe Steel Ltd, Tech Dev Grp, Elect Res Lab, Superconduct Res Sect, Kobe, Hyogo, Japan
Hase, Takashi
Hamada, Mamoru
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Kobe Steel Ltd, Tech Dev Grp, Elect Res Lab, Superconduct Res Sect, Kobe, Hyogo, JapanKobe Steel Ltd, Tech Dev Grp, Elect Res Lab, Superconduct Res Sect, Kobe, Hyogo, Japan