HARWI—A hard x‐ray wiggler beam at DORIS (invited)

The construction of the wiggler W2 at DORIS is described together with the major components of the beamline. Details are given on the assembly and performance of the magnet structure. Three different monochromators are used in the beamline alternatively. One of them, a Laue–Bragg‐type monochromator is described in more detail.