Feed and End Cans to Support Cryogenic Testing of Superconducting Magnets for the Superconducting Super Collider

Single magnet cold testing will be conducted at the Magnet Test Laboratory (MTL) in Waxahachie, Texas. The MTL supports the magnet testing program by providing test capacity for production and R D dipoles, quadrupoles and specialty magnets. Principal components of the cold test strands are the magnet feed and end cans which are closures attached to the open ends of the magnets in order to complete the subsystems of the magnet and allow it to be operated alone. The subsystems of the magnet include the beam pipe, the high field magnet itself with its single-phase flowing helium environment and its current supply, the cryostat 20 K and 80 K shields, and the cryostat vacuum system. The feed and end cans provide interfaces to the subsystems appropriate for the testing. Thus, they contain feed-throughs for the beam pipe to allow the insertion of the magnetic field measuring system with its warm bore; they contain high current gas-cooled electrical connections for the operation of the coils; they provide cryogenic connections to the various parts of the magnet; they provide the insulating vacuum environment for the magnet; they provide connections to the instrumentations that is a part of the magnet; and they provide instrumentation to characterize the operating conditions under which the testing is performed. Details concerning the present state of the design and development of the feed and end cans will be given.