Superconducting magnets for detectors

A Fermilab/KEK/University of Tskuba, Japan collaboration is designing a large superconducting solenoid for the Fermilab Collider Detector Facility (CDF). A review of the status of other superconducting solenoids built for colliding beams machines is presented and progress on the design of the CDF magnet is discussed. Two types of superconducting coils appear to be feasible; a bath-cooled cryostable design or an indirect cooled design using force flow helium. Advantages and disadvantages of each design are pointed out. Scaling up such coils to larger detectors is also discussed