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Electron Microprobe Laboratory  

Responsabile /
Supervisor
  Poli Stefanoemail    stefano.poli@unimi.it  telefono   +39 02 503 15595
    
Personale di
riferimento /
Technician
  Andrea Risplendente   email    andrea.risplendente@unimi.it     telefono   +39 02 503 15581
   
    
Web   
    
Attrezzature /
Equipment
   Microsonda foto 1
   
 

JEOL 8200 Super Probe

Main specifications

Filament: Precentered tungsten (W) hairpin type
Accelerating voltage: 200 V to 30 kV (100 V steps)
Probe current range: 10-12 to 10-5 Å
Secondary detector: Collector electrode, scintillator, light guide, PMT
Backscattered detector: Si P-N junction
Magnification: 40× to 300,000×
Maximum single image resolution: 2048 × 2048 pixels (net-map possible)

WDS - X-ray SPECTROMETER SYSTEM

Detectable element range: 4Be to 92U
Detectable wavelength: 0.087 to 9.3 nm
Number of WDS spectrometers: five
Atomic number resolution on BSE (Z): less/equal than 0.1 (CuZ)
Quantification software of X-ray mapping via ZAF on pixel: possible

 

Chemical analyses of Rare Earth minerals and rare minerals  using a protocol made by
V. Diella, National Research Council, Institute for the Dynamics of Environmental Processes


EDS - X-ray SPECTROMETER SYSTEM

Detectable element range: 11Na to 92U
Energy resolution (FWHM): 144 eV or better

CL -C CATHODOLUMINESCENCE SYSTEM


OMT: Transmission Illuminator
OM: Optical microscope
CCD color camera

SPECIMEN STAGE

- Maximum specimen size: 100—100—20 (H) mm
- Analyzable area: 80—80 mm
- Working distance (WD): 11 mm
- Driving step sizes Half-step 0.5 μm/step, Micro-step 0.02 μm/step
SOFTWARE

EPMA operation software
EDS operation software
WDS/EDS quantitative analysis software
Phi-Rho-Z Quantitative Analysis Program
WDS/EDS mapping
WDS/EDS map data analysis (including combination mapping function)
  
Attività di Ricerca
svolta dal
laboratorio /
Research activities
Chemical and textural analyses on Earth Materials Chemical and
textural characterization on metals and alloys, steels,
ceramics composites, and other artificial materials.

 

 

 

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