Elettra
BL 08.1 L - BEAR

Bending magnet for Emission Absorption and Reflectivity

BEAR is placed at the 8.1 bending magnet port at Elettra. It is a joint venture involving the IOM-CNR and the University of Modena, with the support coming from the IFN-CNR – University of Padova Laboratory Group. The beamline is dedicated to the study of the optical, electronic and magnetic properties of materials also in UHV environment and their interplay with the geometrical structure, with particular attention to reduced dimensionality systems. The beamline operates in the 3-1600 eV spectral region, delivering selectable light polarization from linear to circular. The available spectroscopic tools allow to study in particular ultra-thin films, interfaces, surfaces, adsorbed molecules, nanostructured materials, polymer films, oxides and multilayers. Application oriented studies are optical (vis-soft X) metrology, radiation and thermal induced damage of soft matter and optical elements, multilayer films.

Beamline Energy Resolution
4 * 103 [eV] @ 400 [eV]
Beamline Resolving Power
5 * 103 [deltaE/E] @ 400 [eV]
2 * 103 [deltaE/E] @ 20 [eV]
Beamline Energy Range
2.75 - 1600 [eV]
Max Flux On Sample
1 * 1011 [ph/s] @ 130 [eV]
Spot Size On Sample Hor
120 - 400 [cm]
Spot Size On Sample Vert
1 - 450 [cm]
Divergence Hor
1 - 20 [mrad]
Divergence Vert
1 - 20 [mrad]
Angle Of Incidence Light On Sample Value
1 - 90 [degrees]
Photon Sources

Bending magnet

Type
Bending Magnet
Available Polarization
Linear variable, Elliptical
Variable Polarization
Yes
Source Divergence Sigma
X = 0.263 [urad], Y = 0.009 [urad]
Detectors

Electron analyzer

Type
Electron analyzer
Passive or Active (Electronics)
Active

Detection

Detected Particle
Electron
contacts
Stefano NANNARONE
Angelo GIGLIA
Techniques
Absorption
  • NEXAFS
  • XMCD
Emission or Reflection
  • Polarimetry
  • Reflectrometry
  • X-ray excited optical luminescence (XEOL)
  • X-ray fluorescence (XRF)
Photoelectron emission
  • Photoelectron diffraction
  • UPS
  • XPS
Scattering
  • Elastic scattering
control/Data analysis
Control Software Type
  • Labview
Data Output Type
  • spectra
Data Output Format
  • ASCII
Softwares For Data Analysis
  • opal