Study of Orbit Correction for eRHIC FFAG Design

Chuyu Liu, Yue Hao, Vladimir Litvinenko, Francois Méot, Michiko Minty, Vadim Ptitsyn, Dejan Trbojevic, Schaa, Volker R.W. (Ed.), Henderson, Stuart (Ed.), Akers, Evelyn (Ed.), Satogata, Todd (Ed.)
The chromaticities in the eRHIC linear non-scaling Fixed Field Alternating Gradient (FFAG) lattice are very large. Therefore, particles will decohere in phase space given the presence of lattice errors. The decoherence causes a deviation of the orbit response which is the basis for orbit corrections. In this report we will present a study of the linearity of the orbit response in a lattice with large chromaticity, a comparison of the results of orbit corrections for several cases together with
more » ... ases together with a conclusion that correcting the average orbit with a measured orbit response works as good as an orbit correction for on-momentum particles.
doi:10.18429/jacow-ipac2015-tupwi051 fatcat:ik5fz5jdfrfpzpjfi6f6worki4