Performance and capabilities of the Canadian Dragon: The SGM beamline at the Canadian Light Source

The Canadian Dragon is a Spherical Grating Monochromator (SGM) beamline for the photon energy range between 250 and 2000 eV. The high flux from the source, a 45 mm planar undulator, allows for excellent performance in the difficult 1-2 keV range. Resolving powers comparable to those of the leading spectroscopy beamlines are routinely available. The beamline design employs toroidal refocusing optics to allow for two in-line endstation areas. The upstream experimental area hosts a dedicated UHV endstation with a Scienta SES-100 photoelectron energy analyzer. The downstream experimental area is primarily used for solid sample X-ray absorption studies, but can be fitted with a number of different endstations. A 1 metre long differential pumping section between the beamline optics and the second endstation area permits the analysis of non-UHV compatible samples, making the beamline suitable for many environmental or biological experiments. (C) 2007 Elsevier B.V. All rights reserved.