A grazing incidence monochromator for the photon energy range 5 – 250 eV

A new grazing incidence beamline at the U125/1‐undulator at BESSY augments the beamtime capacity of high flux beamlines in the low energy range. The new beamline will deliver 1012 – 1013 photons/sec/0.1A with a resolving power of more than 10.000 in the energy range from 5 – 250 eV. The design minimizes depolarization effects on circularly polarized light available after a future upgrade of the undulator to an elliptical one. The start of user operation with linearly polarized light is envisaged for the end of 2004.