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The FlexPES (Flexible PhotoElectron Spectroscopy) beamline caters for the experimental needs of both Surface/Material Science and Low Density Matter user communities offering the possibility to perform a variety of photoemission and soft X-ray absorption experiments in the photon energy range 40 – 1500 eV. The two-branch configuration with double-striped toroidal refocusing mirrors ensures maximum flexibility – up to four endstations can be accommodated on the two branches of the beamline simultaneously, and each of these endstations can avail of different focusing conditions. The end stations offer a diverse range of experimental techniques, detectors and sample handling facilities and can be used with a variety of sample delivery systems.

Techniques (as available by Q1 2021)

Available forTechnique/facility description
General UsersBeamline: Linear horizontally polarized light from LPU, with energy range 40-1500 eV. Spot on sample both defocused (0.5-1.5 mm) and focused (from 50x15 um to 150x40 um in different end stations).
General UsersSurface- and Material Science (SMS) branch: High-resolution photoelectron spectroscopy (PES) on solid samples using SES-2002 analyzer and 4-axis manipulator; X-ray absorption spectroscopy (XAS or NEXAFS) using total electron yield, partial electron yield and partial fluorescence yield (SDD detector).
General UsersLow Density Matter (LDM) branch: High-resolution PES on LDM samples using R4000 analyzer with the following sample delivery systems (samples must be approved by chemical safety group):
- Liquid jet setup for e.g. aqueous solutions
- Molecular jet source (continuous beam) for experiments on cold beams of atomic and molecular gases
- Gas cell for PES experiments on atomic and molecular gases
- Magnetron-based source for metal particle beams

Commissioning expertsLow Density Matter (LDM) branch:
COLTRIMS/Multi-coincidence spectroscopy in expert commissioning mode (ICE end station); to be used with molecular jet/cluster source.


MAX IV Highlights 2019

  2019 was a landmark year for MAX IV Laboratory. Continuing the long-standing tradition of delivering innovative technical instruments and capabilities for x-ray science to the research community since MAX-lab was inaugurated in 1987, MAX IV broke new ground by opening five new beamlines to users, and bringing three more into the commissioning phase for

MAX IV viewed from the lake in summer time