Construction and Tests of the 49-pole 3.5 Tesla Superconducting Wiggler for ELETTRA Storage Ring

The necessity of extending the useful spectrum of synchrotron radiation at higher energies (> 10 keV) for X‐Ray Diffraction applications was the reason for developing and constructing a novel superconducting insertion device the Elettra storage ring. The superconducting wiggler with 45 full poles and a field strength of 3.5 T, 16.5 mm magnetic gap and a period of 64 mm has been developed and produced by the Budker Institute of Nuclear Physics SB RAS. This article describes some technical properties and characteristics of the wiggler as well as the results of the wiggler tests.