BRho-Dependent Taylor Transfer Maps for the Super-FRS Dipole Magnets
AbstractWe discuss the iron saturation effects in large aperture separator
magnets. A method is introduced that allows the
calculation of accurate Taylor transfer maps for iron-dominated
magnetic elements and an arbitrary magnetic rigidity Bρ.
The method is applied to the Super-FRS preseparator 11°
dipole magnet revealing a significant Bρ-dependenycy of
some transfer map elements. The convergence of the transfer
maps in terms of their order and the number of magnetic
field expansion points along the reference path is discussed.
E. Kazantseva, O. Boine-Frankenheim, H. Weick, J. S. Winfield,
M. Berz, R. Jagasia, K. Makino,
in: 8th International Particle Accelerator Conference, (2017) 2631
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