Undulator and Wiggler of UVSOR

A 600 MeV electron storage ring whose nickname is UVSOR (Ultra Violet Synchrotron Orbital Radiation) was constructed at Institute for Molecular Science to be a synchrotron radiation source for the research of molecular science and its related fields. New light sources, a permanent magnet undulator and a wiggler were installed in the ring. The undulator has 35 periods and its maximum magnetic field is 0.3 T . The maximum magnetic field of the wiggler is 4 T. Electron beam could be injected and stored in the ring when these devices were excited with the maximum magnetic fields, individually. Results of the measurement of the magnetic field distributions of them, and tune shifts and closed orbit distortions due to them are presented.