Design of a Combined Function Magnet With Individually Adjustable Functions

• Published in: IEEE transactions on nuclear science Vol. 64; no. 5; pp. 1109 - 1117
• Main Authors: Ilic, Andjelija Z., Cirkovic, Sasa T., Ilic, Milan M., Ristic-Djurovic, Jasna L.
• Format: Journal Article
• Language: English
• Published: New York IEEE 01-05-2017; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Acceleration; Accelerator magnets; Accelerators; analytical modeling; Analytical models; Coils; combined function magnets (CFMs); Customization; Cyclotrons; Design; Design optimization; finite-element analysis; Flux density; ion beam focusing; ion beam steering; Ion beams; Magnetic flux; Magnetic flux density; Magnets; Steering; Stripping; Wires
• ISSN: 0018-9499; 1558-1578
• DOI: 10.1109/TNS.2017.2684745

Design of combined function magnets for accelerators is often limited to minor modifications of the existing components, maintaining the high quality of the main harmonic field component, but restricting the range of operation. We investigate the possibility to achieve a wide range of both steering magnetic flux density and focusing field gradients, by utilizing two individually powered magnet parts. A general design methodology is presented, enabling fully customized design and optimization of magnets for different applications. The design procedure is illustrated via a detailed design of a magnet proposed for application in the stripping extraction system of a multipurpose cyclotron.