A SUPERCONDUCTING 3.5 T MULTIPOLE WIGGLER FOR THE ELETTRA STORAGE RING

The superconducting 3.5 T wiggler was designed and fabricated for the ELETTRA storage ring (Italy) for the generation of synchrotron radiation with critical energy of 9.3 keV. The presented wiggler is a 49 pole superconducting magnet with maximum field of 3.5 Tesla inserted into a special liquid helium cryostat. The wiggler design and main parameters are presented in this article. Results of magnetic field measurements and wiggler testing in different modes of operation are discussed.