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A Novel Design of Iron Dominated Superconducting Multipole Magnets With Circular Coils

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1 Author(s)
Vladimir Kashikhin ; Fermi National Accelerator Laboratory, Batavia, USA

Linear accelerators based on superconducting magnet technology use a large number of relatively weak superconducting quadrupoles. In this case an iron dominated quadrupole is the most cost effective solution. The field quality in this magnet is defined by iron poles; the magnet air gap is minimal as are coil ampere-turns. Nevertheless, it has long racetrack type coils, which must be rigid and fixed by a mechanical structure to provide the needed mechanical stability. The novel concept of using circular superconducting coils in such a quadrupole type is described, with a discussion of quadrupole parameters, and results of 3D magnetic designs. Variants of short and long sectional quadrupoles and multipoles are presented.

Published in:

IEEE Transactions on Applied Superconductivity  (Volume:20 ,  Issue: 3 )