Beamline Optics

Overview

The beamline is sourced by an elliptically polarizing undulator (EPU42) covering the photon energy range of 250-4000 eV. CM1 deflects the beam in the horizontal plane and focuses the beam in the vertical plane. The monochromator consists a plane mirror PM2 and 2 different VLS gratings, enabling high transmission both in the soft and tender X-ray regime. Slit2 selects the desired X-ray bandwidth. In Branch A, a horizontal focusing mirror (KBH4A or KBH4B) deflects and focuses the beam in the horizontal direction. Subsequently, the plane mirror (PM5) and vertical focusing mirror (KBV6A or KBV6B) focus and deliver the beam to the soft X-ray scattering (SoXS) or the tender X-ray scattering (TeXS) endstations. In Branch B, a toroidal mirror (TM7) focuses the X-ray in both directions to the quantum-materials resonant elastic X-ray scattering (QM-REXS) endstation is located.  

Key Performance