Electron Microscope Analyzers

QUANTAX WDS

Wavelength Dispersive Spectrometry for SEM

Outstanding Spectral Resolution

Enhanced Analytical Accuracy and Precision

~ 4
eV
FWHM for Si-Kα
Superior energy resolution by over an order of magnitude
< 100
ppm
Detection limit for numerous elements
High trace element accuracy and precision
> 900
cps/nA
Count rate for C-Kα with an 80 Å multilayer
High sensitivity for low-energy X-rays

Complement Your SEM with the Benefits of an Electron Probe Micro Analyzer

  • The QUANTAX WDS (WDX) for SEM consists of the XSense wavelength dispersive spectrometer yielding the best resolution among all parallel-beam WDS systems. The large solid angle, due to the parallel-beam design, results in a much higher signal intensity for low-energy X-rays compared to a Rowland-circle based WDS spectrometer.
  • The high signal-to-noise ratios that are characteristic for WDS are further enhanced by a unique secondary optic that suppresses background artefacts.
  • Equipped with the finest grazing incidence optic and up to six analyzer crystals, the QUANTAX WDS has a superior sensitivity for low energy X-rays from 70 eV upwards.
  • An ingenious automatic optic alignment system and a unique pressure-controlled proportional counter ensure accurate and reproducible results.
  • Flexible adaptation to either a WDS or EDS port.

WDS on SEM – a Perfect Solution for Demanding Analytical Applications

  • Resolve common EDS peak overlaps such as Ta-W-Si, Pb-S, or Mo-S 
  • Explore low-energy X-ray line series (L, M, N) for the elements of interest
  • Examine samples with low acceleration voltages to ensure a minimal depth of penetration 
  • Obtain the highest cps/nA due to the high solid angle that enables light elements investigation from Be to F across the entire concentration range
  • Determine trace element concentrations far below the limits of detection of an EDS
  • Measure at low vacuum without the necessity of a conductive coating 
  • Save time on analytical measurements with a unique pressure-controlled proportional counter
  • Ensure spatial accuracy of the spectral data for precise quantification
  • Save acquisition time with simultaneous WDS and EDS analysis that incorporates the benefits of each detector in the combined quantification 

What is your Analytical Challenge?

Resources

Learn more about WDS 

Interested in learning more about WDS? Visit our explainer page: