Superconducting toroid design for the ATLAS experiment at LHC

The ATLAS Experiment proposed for LHC will use toroidal magnet systems to achieve high muon momentum resolution. The proposal is based on an air-cored superconducting toroid magnet system consisting of a long barrel toroid with a pair of end cap toroids to provide high resolution at large rapidity. Each end cap toroid will have an outer diameter of approximately 11 m and an axial length of 5 m and will provide field integrals in the range 4-8 Tm over the rapidity span /spl eta/=1.5-2.8. This paper presents the magnetic, mechanical and cryogenic design of the end cap toroid magnet systems.<
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