Figure 6
The UE38 undulator is about 2.2 m long, 1.4 m wide and 2 m high. The cast iron frame is adjustable with five degrees of freedom thanks to cam-shaft movers. The motor control electronics are mounted directly to the frame. Inset: magnet arrays can move along a 45° plane to vary the gap (K values) and along the z axis to change polarization. |