Skew harmonics suppression in electromagnets with application to the Advanced Light Source (ALS) storage ring corrector magnet design

Journal Article · Fri Jul 01 00:00:00 EDT 1994 · IEEE Transactions on Magnetics

DOI:https://doi.org/10.1109/20.305690· OSTI ID:33482

Schlueter, R D; Halbach, K ^[1]

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1. Lawrence Berkeley Lab., CA (United States)

An analytical expression for prediction of skew harmonics in an iron core combined function regular/skew dipole magnet due to arbitrarily positioned electromagnet coils is developed. A structured approach is presented for the suppression of an arbitrary number of harmonic components to arbitrarily low values. Application of the analytical harmonic strength calculations coupled to the structured harmonic suppression approach is presented in the context of the design of the ALS storage ring corrector magnets, where quadrupole, sextupole, and octupole skew harmonics were reduced to less than 1.0% of the skew dipole at the beam aperture radius r = 3.0 cm.

• DOE Contract Number: AC03-76SF00098
• OSTI ID: 33482
• Report Number(s): CONF-930926-; ISSN 0018-9464; TRN: 95:009228
• Journal Information: IEEE Transactions on Magnetics, Vol. 30, Issue 4Pt2; Conference: 13. international conference on magnet technology, Victoria (Canada), 20-24 Sep 1993; Other Information: PBD: Jul 1994
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
ADVANCED LIGHT SOURCE
ELECTROMAGNETS
DESIGN
HARMONICS
ANALYTICAL SOLUTION
MAGNET CORES
MULTIPOLES
MAGNETIC FIELDS
BEAM DYNAMICS