The TPS 45A beamline uses an elliptically polarized undulator with a 46 mm magnet period that delivers photons over the energies of 280 - 1500 eV with linear (horizontal and vertical) and circular (left and right) polarizations. Its optical design adopts the concepts of the Dragon-type design with an advanced innovation of using a bendable vertical focusing mirror (VFM) and an active grating monochromator (AGM) that utilize the novel 25-actuator optical surface benders. This 25-actuator optical surface bender not only provides a higher-degree polynomial profile for eliminating the optical aberration, but also reduces the intrinsic slope error and the thermal deformation on the optical surface. This ensures a high photon throughput of the order of 2 x 1011 photons/sec/0.01%BW and an ultra-high energy resolving power of the order of 25,000. Together with a set of Kirkpatrick-Baez mirror, i.e. vertical refocusing mirror (VRFM) and horizontal refocusing mirror (HRFM), the beam spot size at the sample position is in the order of 1 μm x 1 μm.
Please contact the TPS 45A beamline scientists to discuss the technical feasibility of your experiments at MPI end-station and TKU end-station before submitting your proposals.