17–22 May 2026
C.I.D
Europe/Zurich timezone

Towards a nonlinear modeling of the combined sextupole-corrector magnets at SOLEIL II

THP2029
21 May 2026, 16:00
2h
C.I.D

C.I.D

Deauville, France
Poster Presentation MC2.A05: Synchrotron Radiation Facilities Poster session

Speaker

Laurent Nadolski (Synchrotron soleil)

Description

In the SOLEIL II project, the sextupoles are equipped with additional windings to provide normal and skew dipole corrections. Accurate modeling and trimming of these combined-function sextupole magnets are particularly challenging due to magnetic saturation, hysteresis, and internal cross-talk between their channels. Based on 3D magnetic simulations, polynomial models, interpolation models, and neural network models were developed to reproduce the saturation and cross-talk effects. These nonlinear models were validated on the first prototype magnet, providing preliminary confirmation of both their reliability and the feasibility of implementing sextupole-corrector magnets in the SOLEIL II storage ring.

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Author

Zhandong Zhang (Synchrotron soleil)

Co-authors

Alexandre Loulergue (Synchrotron soleil) Fabrice Marteau (Synchrotron soleil) Laurent Nadolski (Synchrotron soleil) Thibaut Mutin (Synchrotron soleil) Victor Pinty (Synchrotron soleil)

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