FinEstBeAMS is a materials and atmospheric science beamline at the MAX IV 1.5 GeV storage ring. It provides ultraviolet and soft X-ray radiation with precisely controlled and widely variable parameters. The beamline has two branches: one branch is dedicated to ultra-high vacuum studies of surfaces and interfaces and the other to gas-phase experiments and photoluminescence in solids. The range of research extends from the electronic structure studies of free particles (atoms, molecules, clusters and atmospheric particles) in gas phase and on surfaces to formation analysis and nanoscale characterisation of surfaces and interfaces. The design of the beamline facilitates sample transfer between the end stations, offering synergy between gas phase and solid-state research.
An Estonian and Finnish consortium, supported by the EU through the European Regional Development Fund and the Academy of Finland, has provided funding for the construction of the beamline, instrumentation and staff.
|Available for||Technique description|
|General Users||High-resolution photoelectron and Auger electron spectroscopy of gaseous samples. (GPES)|
|General Users||Ion time-of-flight mass spectrometry of gaseous samples. (GPES)|
|General Users||X-Ray Absorption of gaseous samples, measured in the Total Ion Yield mode. (GPES)|
|General Users||Photoluminescence spectroscopy of solid samples in the wavelength range 1.4um-200 nm. (PLES)|
|General Users||Measurement of Photoluminescence excitation functions at fixed emission wavelengths as well as reflection spectra from polished surfaces of solid samples. (PLES)|
|General Users||Temperature dependencies of luminescence properties of solid materials in the temperature range from 10 K up to 350 K. (PLES)|
|General Users||Photoelectron-Photoion Coincidence (PEPICO) spectroscopy of gaseous samples. (GPES)|
The available photon energy range is 4.4-~1000 eV using horizontally linear polarized radiation and ~15-~210 eV using vertically linear polarized radiation. However, the upper energy limit depends on the photon flux requirements of a given experiment.
GPES = Gas-phase end station
PLES = Photoluminescence end station
A successful call for proposals
The spring call for proposals for eight beamlines at MAX IV closed 19 March with a total of 228 proposals from 28 countries. The number of applications is on par with proposals received when the former MAX-lab peaked, which shows that the demand from users is high as well as is their confidence in getting excellent tools