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New Method of Dispersion Correction in the Pep-II Low Energy Ring

I. Reichel·Y. Cai
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Abstract

The sextupole magnets in the Low Energy Ring (LER) of PEP-II are grouped in pairs with a phase advance of 180 degrees. Displacing the magnets or moving the orbit to displace the beam in the magnets in an antisymmetric way creates a dispersion wave around the ring. This can be used to correct the vertical dispersion in LER without changing the local coupling. Results from simulations are shown.

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I. Reichel, Y. Cai. 2000-08-23. New Method of Dispersion Correction in the Pep-II Low Energy Ring. https://arxiv.org/abs/physics/0008216

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