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On Improving the Chromatic Effects of Storage Rings with Antisymmetric Insertions

By: Parzen, G.; Dell, F.; Courant, E.; Cornacchia, M.; Claus, J.; Garren, A.;

1983 / IEEE

Description

This item was taken from the IEEE Periodical ' On Improving the Chromatic Effects of Storage Rings with Antisymmetric Insertions ' High luminosity storage rings require good chromatic behavior for beams with large momentum spreads. This requires that the effects of half-integer structure resonances for off-momentum particles be minimized. We show that a lattice with antisymmetric insertions can be so designed that the driving term for the half-integer structure resonance is suppressed by cancellation of successive pairs of highbeta multiplets. Hence, even though the periodicity is half that of a lattice with symmetric insertions, the chromatic properties are similar.