Figure 2
Schematic layout of the experimental setup with the soft X-ray polarimeter installed on the beamline I06 branch line. With four magnet rows (quadrants Q1–Q4), the APPLE-II undulator offers the capability to alter the row phases of quadrants Q2 and Q4 independently, referred to as top and bottom row phase (TRP/BRP) here, along with the gap between the two magnet row pairs. This provides the capability of selecting almost any polarization state across the entire energy range of the source. |