Latest developments of insertion devices at ACCEL Instruments

ACCEL Instruments GmbH [1] has designed, manufactured, assembled, and tested several insertion devices for many synchrotron light sources and free electron lasers around the world. Besides the superconducting (sc) wavelength shifters, sc-wigglers and sc-undulators, ACCEL has entered the pure permanent magnet based insertion device market. The latest progress of the insertion device (ID) group was the production of 6 identical PPM undulators for the SPARC free electron laser (FEL) project in Frascati (Italy), the production of a prototype undulator and an industrial study on large scale undulator production for the European X-FEL project in Hamburg (Germany). ACCEL has signed a know-how and license agreement with the ID group at the ESRF in order to be able to supply customers with high quality insertion devices in short delivery times. Therefore ACCEL has setup a standard ESRF 7 m granite measuring bench. Design issues, measurement techniques, and measurement results will be presented.