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WEPC101 |
Improved Homogeneity of Permanent Magnets for Undulators and Wigglers
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2234 |
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- F.-J. Boergermann, R. Blank, G. W. Reppel
Vacuumschmelze GmbH & Co. KG, Hanau
- J. Bahrdt
BESSY GmbH, Berlin
- J. Pflueger
DESY, Hamburg
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The homogeneity of permanent magnets for use in undulators and wigglers were significantly improved in close collaboration between industry and scientific institutes throughout the last three years. Magnets with a variation of less than ± 1% in remanence, ± 1° magnetic angle and ± 1% hot/cold-side effect can be produced now - a variation of the magnetic angle of less than ± 0.5 ° is possible for some products. The development was assisted by improved characterization equipment for magnetic dipole moment and magnetic inhomogeneities by the scientific partners, which was made available for industrial application at Vacuumschmelze.
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