Final-focus optics for the LHeC electron beam line

One of the options considered for the ECFA-CERNNuPECC design study for a Large Hadron electron Collider (LHeC) based on the LHC is adding a recirculating energy-recovery linac tangential to the LHC. First designs of the electron Final Focus System have shown the need to correct the chromatic aberrations. Two designs using different approaches for the chromaticity correction are compared, namely, the local chromaticity correction and the traditional approach using dedicated sections.