MAX IV Laboratory
FinEstBeAMS

FinEstBeAMS at the MAX IV 1.5 GeV storage ring is a material- and atmospheric science beamline dedicated to provide high quality radiation with precisely controlled and widely variable parameters for a broad range of research. FinEstBeAMS recieved the first light in November 2017. Beamline has two branch lines – one for ultra-high vacuum (UHV) surfaces and interface studies, and the other for high-pressure volatile materials experiments and photoluminescence studies.

Due to its wide energy range, high flux and good resolving power, FinEstBeAMS is an optimal experimental set-up to investigate the electronic structure of free atoms, molecules, clusters and atmospheric particles in a gas phase and on surfaces. 

Funding for the basic equipment and instrumentation, materials, and staff during the construction phase was provided by an Estonian and Finnish consortium, supported by the EU through the European Regional Development Fund and the Academy of Finland. Beamline is opened for all users.

 

 

 

Beamline Energy Range
4.3 - 1300 [eV]
Spot Size On Sample Hor
100 [um]
Endstations or Setup

FinEstLUMI endstation

Description
FinEstLUMI:
Second endstation on the gas phase beamline branch, aimed at luminescence spectroscopy research under vacuum ultraviolet (VUV) as well as soft X-rays (XUV) excitations.
Spectrometer
Andor Shamrock 0.3 m spectrometer for UV to near-IR.
Several VUV and soft X-ray photon detectors.
Endstation Operative
Yes

Sample

Sample Type
Crystal, Amorphous, Fiber

Manipulator or Sample stage

Description
Cryostat manipulator stage:
The cryostat is mounted on a rotational stage, installed on an XYZ manipulator (Thermionics).
Degrees Of Freedom
4
Translator Stages
3
Cradles
1

Sample Environment

Description
UHV chamber:
Samples are mounted on the cold finger of an Advanced Research System closed-cycle cryostat.
Pressure (min)
1 * 10-9 [mbar]
Temperature
10 - 300 [K]

Gas-phase endstation

Description
Gas-phase endstation:
The main endstation on the gas-phase beamline branch. Designed for photoelectron-photoion coincidence (PEPICO) experiments of gas phase targets and samples with high vapour pressure.
It accommodates sample preparation systems provided by the FinEstBeAMS consortium, or by external users.
Initially, gas inlet systems and solid target vaporisation set-ups will be available.
Spectrometer
A Scienta R4000 electron spectrometer .
A momentum-imaging multi-hit-capable ion Time-of-Flight (TOF) spectrometer.
Endstation Operative
Yes

Sample

Sample Type
Liquid, Gas

Solid-state endstation

Description
Solid-state endstation:
The endstation is installed on the second beamline branch, and is designed for studying solid state materials at ultra high vacuum (UHV) conditions.
The end station is composed of four UHV chambers connected by a rotational-distribution chamber:
1. Analysis chamber
2. Preparation chamber
3. Storage chamber
4. Load-lock chamber
Spectrometer
Hemispherical electron energy analyser (PHOIBOS 150 2D-DLD from Specs).

Sample

Sample Type
Crystal, Other: Surfaces and thin films.

Manipulator or Sample stage

Description
Analysis chamber:
The manipulator has 5-axis motorised motion, i.e. three linear motions and two rotational motions (polar and azimuth).
Degrees Of Freedom
5
Translator Stages
3
Cradles
2
Description
Preparation chamber:
The manipulator has a four-axis motorised motion, i.e. three linear motions and one rotational motion (polar)
Degrees Of Freedom
4
Translator Stages
3
Cradles
1

Sample Environment

Description
Analysis chamber:
Capable of photoelectron spectroscopy (PES) and X-ray absorption spectroscopy (XAS) measurement and in the future also of photoluminescence (PL) spectroscopy.
Sample are cooled using liquid He or N2, and resistive heating is available in the sample manipulator.
Pressure (min)
8 * 10-11 [mbar]
Description
Load-lock chamber:
A maximum of 12 samples can be loaded at the same time.
Pressure (min)
1 * 10-9 [mbar]
Description
Preparation chamber:
Equipped with two sample stations including direct heating, resistive heating, electron beam bombardment, and LN2 cooling. The chamber is also equipped with LEED/AES and a quadrupole mass spectrometer.
There are possibilities for quick loading of an evaporation source, evaporation cell etc., without venting the chamber.
Pressure (min)
2 * 10-10 [mbar]
Description
Storage chamber:
Storage of up to 12 samples.
Pressure (min)
1 * 10-10 [mbar]
Detectors

Luminescence detectors

Type
Luminescence detectors
Description
A Newton CCD camera (Newton DU970P-BVF model from Andor), spectral range of 200-1100 nm.
Hamamatsu photomultipliers (H8259, H8259-01, and H8259-02 photon counting heads), spectral range of 200-900 nm.
Thermoelectrically cooled infrared NIR PMT Unit H10330C-45 (Hamamatsu), spectral range of 950-1400 nm.

Detection

Detected Particle
Photon

Reflection and transmission detectors

Type
Reflection and transmission detectors
Description
Two AXUV-100G diodes mounted in UHV serve as detectors of either transmitted or reflected radiation from the samples in suitable geometry.

Detection

Detected Particle
Photon
contacts
Rainer Pärna
Techniques
Absorption
  • NEXAFS
Emission or Reflection
  • X-ray excited optical luminescence (XEOL)
Ion Spectroscopy
  • Mass spectrometry
Photoelectron emission
  • UPS
  • XPS
Disciplines
Energy
  • Sustainable energy systems
Material Sciences
  • Knowledge based multifunctional materials
  • Other - Material Sciences
Physics
  • Atomic & molecular physics
Address
MAX IV Laboratory
Fotongatan 2
224 84 Lund
Sweden
control/Data analysis
Control Software Type
  • TBC
Data Output Type
  • TBC
Data Output Format
  • TBC