Optimal Design Methodology of Superconducting Bending Magnet with Active Shielding
(2012) Applied Superconductivity Conference (ASC — Location: Portland, Oregon, United-States (7.October.2012)
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- Abstract
- The development of particle therapy systems leads to the design of several bending magnets. Most of these designs are based on an a priori choice of a solution whose characteristic parameters are then optimized. The topology and the geometry of the solution can therefore not evolve during the optimization, which strongly conditions the optimality of the final solution to the initial choice of the designer. This paper proposes a three-step design tool aimed at producing in an automated way the best possible solution without a priori on its geometry or topology. The first step implements a topology optimization tool searching for the conductor distribution on the magnet section that minimizes the conductor quantity while respecting some specifications on the field distribution and manufacturing constraints. This step leads only to a pre-design since it is obtained by neglecting the end winding influence and it is made of complex section coils. The second step then consists in post-processing this solution by simplifying the conductor distribution to a stack of rectangular section coils and by generating a design including the end windings. The last step implements a parametric optimization tool aiming at finding the main geometrical parameters characterizing this solution that minimize the error on the field integration along the beam path. This approach is applied to the design of a 90 ° magnet.
Citations
Elhaut, T., & Dehez, B. (2012). Optimal Design Methodology of Superconducting Bending Magnet with Active Shielding. Applied Superconductivity Conference (ASC, Portland, Oregon, United-States. https://hdl.handle.net/2078.5/43154