Some Supermagnet Design Considerations

The practicability of medium-sized super-conducting magnets has been demonstrated by the performance of the ANL 67 kG seven inch magnet system. This paper summarizes the design factors for that magnet, with special emphasis upon their implications for very large magnets. Various techniques for obtaining satisfactory current densities at a high level of stability and reliability are discussed. The clear implication of the results up to now is that very large supermagnets are indeed practical from a technical standpoint. The economic factors which must be carefully studied in order to establish the over-all practicality of large supermagnets are discussed.