Development of Insertion Device Magnetic Characterization Systems at Lnls

This paper describes a set of magnetic measurement systems employed in the development of insertion devices at LNLS (Brazilian Synchrotron Light Source). They are: rotating coil (which can also operate as a flip-coil), spatial field mapping using Hall probes and parallel coils (Helmholtz configuration) for magnetic blocks characterization. Although such techniques are well established, strict specifications imposed by the beam dynamics on the magnetic field quality, led to a detailed analysis of the sources of error and their minimization. All three systems have already been tested and showed excellent accuracy and repeatability when compared to typical values found in the scientific literature.