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The Pipe-Quadrupole, an Alternative for High Gradient Interaction Region Quadrupole Designs [electronic resource].

Published
Berkeley, Calif. : Lawrence Berkeley National Laboratory, 1996.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
3 : digital, PDF file
Additional Creators
Lawrence Berkeley National Laboratory and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
In the design of interaction region (IR) quadrupoles for high luminosity colliders such as the LHC or a possible upgrade of the Tevatron, the radiation heating of the coil windings is an important issue. Two obvious solutions to this problem can be chosen. The first is to reduce the heat load by added shielding, increased cooling with fins or using Nb₃Sn to increase the temperature margin. The second solution eliminates the conductor from the areas with the highest radiation intensity, which are located on the symmetry-axes of the midplanes of the coils. A novel quadrupole design is presented, in which the conductor is wound on four half-moon shaped supports, forming elongated toroid sections. The assembly of the four shapes yields a quadrupole field with an active flux return path, and a void in the high radiation area. This void can be occupied by a liquid helium cooling pipe to lower the temperature of the windings from the inside. The coil layout, harmonic optimization and mechanical design are shown, together with the calculated temperature rise for the radiation load of the LHC interaction region quadrupoles.
Report Numbers
E 1.99:lbl-38331
lbl-38331
Other Subject(s)
Note
Published through SciTech Connect.
12/12/1996.
"lbl-38331"
Applied Superconductivity Conference, Pittsburgh, PA, August 25-30, 1996.
Scanlan, R.M.; Oort, J.M. van.
Accelerator&
Fusion Research Division
Funding Information
DE-AC02-05CH11231
View MARC record | catkey: 14349374