The main dipole prototype for the KfK Synchrotron Radiation Source

This KfK Synchrotron Radiation Source is designed to be a 2.5 GeV electron storage ring with circulating current 100 mA and critical radiation wavelength 0.2 nm. The storage ring consists of dipoles and quadrupoles. The prototype dipole magnet has been built by Efremov Research Institute, Russia and will be delivered in KfK, Karlsruhe at the end of June this year. A magnetic measurements facility has been set up for magnetic field mapping, which includes Hall probe field mapping and rotating coil harmonic analysis system. The results of the measurements are shown.