The LNLS booster synchrotron dipole magnets

The Brazilian Synchrotron Light Laboratory (LNLS) has just constructed and commissioned a 500 MeV booster synchrotron to be used as injector for the 1.37 GeV electron storage ring. The booster has been constructed inside the storage ring, where the constraints in space are very tight. For this reason, the booster dipoles were made as small as possible, i.e., with small curvature radius (magnetic field of 1.6 T) and appreciable fringe field effects. In this report we present the results for the characterization of these magnets and simulation of their effects on the booster optics.