Commissioning and performance of the variable line spacing plane grating monochromator beamline at the Canadian Light Source Available to Purchase

The variable line spacing plane grating monochromator beamline at the Canadian Light Source (CLS) employs three grazing incidence variable line spacing gratings to cover a photon energy range of $5–250eV$⁠. It uses a $185mm$ period length planar permanent magnet insertion device as the photon source, sharing a straight section with another soft x-ray beamline at the CLS. The commissioning and performance of the beamline is reported. The high resolution photoabsorption spectra of Ar and $PF5$ gases are reported. A resolving power of over 40 000 for photons in the low energy region and $>10000$ for a wider energy range $(8–200eV)$ can be achieved. A photon flux of up to $2×1012photons∕sper100mA$ with slit settings of $50μm$ has been measured.