Undulators

Synchrotron radiation with extremely high brilliance is emitted by wiggler and undulator magnets, so called “insertion devices”. They produce a periodically alternating field at the beam axis with well defined period length. By this configuration the electrons are forced on an osczillating trajectory as they pass the field configuration and hence emit synchrotron radiation. For the special case of an undulator the period length of the magnetic field is precisely matched with the wave length of the synchrotron light. Therefore the emission of radiation is stimulated leading to the creation of coherent (laser) light of very narrow band width. Because of the periodic transverse particle oscillation the resulting spontaneous radiation is mainly coherent with small width of spectral lines.

We built our experience on permanent magnet undulators working closely with DESY and recently 11 units for PETRA III. In addition through a collaboration with FZK, we are working on new technologies and in the application of superconductivity to commercially feasible insertion devices.