Status of the Dortmund TGM3‐Beamline

The former TGM3 beamline at BESSYI was rebuilt at the DELTA storage ring, University of Dortmund, Germany. The beamline uses synchrotron radiation from a dipole bending magnet. The previous design of the beamline had to be adapted to an operation at DELTA. This included a motorized rotation of the first mirror, since that mirror is located within the radiation shield wall at DELTA. Also, further minor components had to be modified, adapted, or replaced. During the set‐up at DELTA, previously known operation problems due to mechanical vibrations were eliminated by a complete new mounting of the optical components. The measured performance parameters at BESSYI are compared with calculated results for an operation at DELTA. The first commissioning experiments are currently carried out.