Engineering design & analysis of large superconducting particle analysis magnets

Superconducting magnet technology is one phase of applied superconductivity where significant electrical power savings may be appreciated. Furthermore, these power savings maybe gained without sacrificing reliability of operation or initial capital costs. This paper describes the design and construction of 4 large superconducting dipole magnets which are being used at Fermi National Accelerator Laboratory to conduct high energy physics experiments. Two of these magnets have been built and operated continuously for several months prior to installation in beam lines. Two larger superconducting dipoles are presently under construction and both magnets will be completed this year. All magnets are designed to operate continuously without special attention consuming approximately 10% of the power which would be demanded by a conventional magnet. The engineering concept and construction techniques are described.