ABSTRACT
This chapter discusses the optics correction method that uses orbit response matrix Orbit response matrix as the input data. The linear optics of an accelerator beam line is of fundamental importance - after all, the main purpose of the beam line lattice is to achieve the desired linear optics. To correct the linear optics errors, measurements must be conducted to sample the linear optics and determine the errors. The primary goal of the linear optics of a magnet lattice is to keep the beam focused in both transverse planes, i.e., to preserve small beam sizes through the beam line. Linear optics concerns the transformation of the transverse beam profile from one location to another. There are two goals in analyzing the orbit data for linear optics: optics measurement and optics correction. The linear optics in a storage ring is often described by the beta functions and the betatron phase advances.
