Updates to the MAX IV 1.5 GeV Storage Ring Lattice
Last revised: June 11, 2012
The optics for the MAX IV 1.5GeV storage ring have been modified and the lattice has been updated. The new 20111102 branch [1] will replace the previous 20110201 branch. The lattice update has resulted primarily from a first iteration with detailed magnet design [2] using a new slice model for dipoles and quadrupoles. The optics changes are minor and consist mainly in a change of the vertical tune by +0.1. The nonlinear optics were re-optimized with emphasis on increasing the momentum acceptance to 4.0% [3]. The changes to the lattice are significant and therefore the DDR chapters on beam dynamics in the 1.5 GeV storage ring [4] will be rewritten. For the time being, this note will serve as documentation of the changes and expected performance of the new lattice. A list of current lattice files and their purpose is appended.