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@ARTICLE{Christmann:631483,
author = {Christmann, Jan-Magnus and De Gersem, H. and von Tresckow,
M. and Aloev, Alexander and Mirza, Sajjad Hussain and
Pfeiffer, S. and Schlarb, H.},
title = {{F}inite element simulation of fast corrector magnets for
{PETRA} {IV}},
journal = {Journal of physics / Conference Series},
volume = {IPAC2023},
number = {8},
issn = {1742-6588},
address = {Bristol},
publisher = {IOP Publ.},
reportid = {PUBDB-2025-01995},
pages = {082010},
year = {2024},
abstract = {The new synchrotron light source PETRA IV at DESY will use
a fast orbit feedback system with hundreds of fast corrector
magnets to meet stringent orbit stability requirements.
These magnets are operated at high frequencies, creating
strong eddy currents that result in Joule losses and a time
delay between applied voltage and aperture field. User
experiments impose challenging requirements on beam
operation to preserve the point of the radiation source. To
meet the demanding feedback requirements, finite element
simulations are needed to understand the characteristics of
the corrector magnet. However, due to the small skin depths
at high frequencies and the laminated structure of the yoke,
these simulations need a very fine mesh and are thus very
costly. Therefore, we homogenize the laminated yoke which
reduces the computational effort but captures the eddy
current effects accurately. The reduction of simulation
times from several hours to a few minutes allows us to
conduct extensive studies of the eddy current losses and the
field quality of the magnets.},
month = {May},
date = {2023-05-07},
organization = {14th International Particle
Accelerator Conference, Venice (Italy),
7 May 2023 - 12 May 2023},
cin = {MSK},
ddc = {530},
cid = {I:(DE-H253)MSK-20120731},
pnm = {621 - Accelerator Research and Development (POF4-621) / GRK
2128 - GRK 2128: AccelencE: Beschleunigerphysik und
–technologie für Teilchenbeschleuniger mit
Energierückgewinnung (264883531)},
pid = {G:(DE-HGF)POF4-621 / G:(GEPRIS)264883531},
experiment = {EXP:(DE-H253)PETRAIV-20220101},
typ = {PUB:(DE-HGF)8 / PUB:(DE-HGF)16},
doi = {10.1088/1742-6596/2687/8/082010},
url = {https://bib-pubdb1.desy.de/record/631483},
}