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ElvaX Light SDD


ElvaX Light SDD Spectrometer is a desktop energy-dispersive X-ray fluorescence (EDXRF) analyzer with extended element range from Na (Z=11) to U (Z=92). The Helium purge system and the automatic primary filter changer combined with the large area SDD detector are used to allow effective registration of the light elements spectra. ElvaX Light SDD Spectrometer is used for quantitative and qualitative analysis of the elemental composition of metal alloys, liquids, food and biological samples, powder assays, as well as samples deposited on surfaces or filters, in a wide range of element concentrations. The accuracy of determining concentrations is better than 0.3% for metal alloys. Analyzer's detecting limit is better than 1 ppm for most elements in light matrix.


Fields of application

  •      RoHS & WEEE
  • Metallurgy
  • Medical diagnosis
  • Ecological monitoring
  • Customs and criminalistic expertise
  • Archaeological studies
  • Chemical industry
  • Oil-refining industry
  • Geology and mineralogy
  • Food industry
  • Scientific research


Basic user specifications

Element detection range from Na (Z=11) to U (Z=92)
Data acquisition time 3 – 100 s
Power supply 90 - 240 V, 50/60 Hz
Power consumption 40 W
Dimensions 430 mm x 340 mm x 200 mm
Weight 18 kg

Technical characteristics

X-ray source

X-ray tube Rh anode 150 µm, Be window, air-cooling
X-ray generator voltage: 4–50 kV, adjustable in 100 V steps
current: 0–100 µA, adjustable in 0.2 µA steps
maximal power: 5 W
Stability 0.1% per 8 hours

X-ray detector

Detector type solid state SDD with thermo-electrical cooling
Active area  25 mm2
Energy resolution  140 eV at 5.9 keV (Fe55 isotope)
Be window thickness 12 µm

Spectrometric processor

Pulse processor digital pulse processor
pile-up rejection
pulse shape selector
automatic adjustment to count rate
ADC 4096 channels
Buffer RAM 4096 32-bit channels
Timers real and "live" time


Supported operating systems Windows XP/Vista/7
Quantitative analysis algorithms fundamental parameters
quadratic stepwise multiple regression
manual spectra comparison


Built-in CCD Camera 1.3 Mpixel
Autosampler 8 positions, 32 mm diameter