Speaker
Description
Currently, the choice between the standard higher-order multi-bend achromat (MBA) and the hybrid multi-bend achromat (h-MBA) lattices for new 4th-generation storage rings is a difficult decision. This work presents a systematic view of the standard MBA performance when the lattice is scaled to different lengths and periodicities. At the core of the standard MBA is the unit cell, the optics of the unit cell are strongly constrained in order to create a higher-order achromat with distributed sextupoles. Combined with constraints on the dimensions and strengths of the magnets, the parameters of the unit cell can be scanned in a systematic way. A set of optimal parameters that satisfies the target performance and minimises the required sextupole strengths can be extracted from the results. The matching sections of the achromat are then determined procedurally. These results can be used to make comprehensive comparisons with h-MBA lattices and provide a scalable design approach for new facility designs.
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