August 27, 2017 to September 1, 2017
RAI Congress Center, Amsterdam, The Netherlands
Europe/Amsterdam timezone

Twin aperture bending magnets and quadrupoles for FCC-ee

Aug 30, 2017, 10:45 AM
G102-103 Room

G102-103 Room

Regular 15 minutes Oral Presentation A2 - Resistive Accelerator Magnets Wed-Mo-Or19


Attilio Milanese (CERN)


We report the magnetic design of twin resistive magnets, with a field configuration applicable to large lepton colliders, like FCC-ee. The bending magnets are based on an I-layout, with a common iron yoke powered by two busbars; both pure dipoles and combined function units with an embedded gradient are considered. The quadrupoles present a peculiar geometry, with eight poles but only two coils; their inherent asymmetry is compensated at the pole tip level to provide a good field homogeneity in the bore. For these magnets, the advantage of using a twin design brings – besides a reduction in the number of components and units – a significant power saving, of the order of 50% with respect to a traditional approach – which makes them attractive for use in large machines. The paper also provides an update on the construction of short models, with possibly first results of magnetic measurements.

Submitters Country Switzerland

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