TXRF Spectrometer – TX 2000

Total Reflection X-Ray Fluorescence (TXRF) TX 2000

TX 2000 is a high precision  TXRF Spectrometer ( Total reflection X-Ray Fluorescence)

TXRF is a type of Energy Dispersive X-Ray Fluorescence (EDXRF) in which the beam strikes the sample, deposited as a thin layer on a carrier, at a very small incidence angle, in order to exploit enhancement given by the total reflection effect.

  • Simultaneous multi-element analysis from Na to Pu
  • No matrix effects
  • No matrix-dependent calibration curves
  • Improved detection limits (LOD) down to ng/g or lower
  • Minimum amount of sample
  • Microanalysis capabilities
  • Stepper motors with optical encoders ensure extremely precise angular values.
  • Enhanced excitation mode by selection of the most suitable monochromatized energy (W-La/W-Lb/Mo-Ka) provided by the combination of double anode MO/W X-ray tube and W/Si multilayer. Other X-Ray anodes can be monochromatized as well.
  • Peltier-cooled Silicon Drift Detector with an energy resolution better than of 133eV (FWHM@MnKa, 1ms peaking time)

TX 2000 is the state-of-the-art laboratory TXRF spectrometer for quantitative multi element trace analysis using Total Reflection X-Ray Fluorescence (TXRF).

  • Stepper motors with optical encoders ensure extremely precise angular values.
  • Enhanced excitation mode by selection of the most suitable monochromatized energy (W-La/W-Lb/Mo-Ka) provided by the combination of double anode MO/W X-ray tube and W/Si multilayer. Other X-Ray anodes can be monochromatized as well.
  • Peltier-cooled Silicon Drift Detector with an energy resolution better than of 133eV (FWHM@MnKa, 1ms peaking time)
  • Minimal distance between the sample and the detector (mounted to the axis normal to the plane of the sample).
  • Instrumental detection limits below ng/g.
  • Helium flux attachment to improve the detection limits for the light elements.
  • No matrix effects

TXRF is a type of Energy Dispersive X-Ray Fluorescence (EDXRF) in which the beam strikes the sample, deposited as a thin layer on a carrier, at a very small incidence angle, in order to exploit enhancement given by the total reflection effect. As far as the sample is thin enough (thin film approximation).

TX 2000, equipped with an automatic primary beam switching system (MoKa, WLa/Lb and bremsstrahlung 33 keV), a Silicon Drift Detector (SDD) and a high power X-Ray Tube is the optimal solution for applications in environmental, chemicals and nuclear fields.

X Ray Generator 
Maximum Output Power3 kW (option: 4 kW)
Max Output Voltage60 kV
Max Output Current60 mA (option: 80 mA)
Output Stability< 0.01 % (for 10% power supply fluctuation)
Voltage Step Width0.1 kV
Current Step Width0.1 mA
Ripple0.03% rms < 1kHz, 0.75% rms > 1kHz
Preheat and RampAutomatic preheat and ramp control circuit
Input Voltage220 Vac +/-10%, 50 or 60 Hz, single phase
X-Ray Tube (*) 
TypeGlass, Mo/W anode, long fine focus
Focus0.4 x 12 mm
Max Output2.5 kW (*) Different anodes can be mounted on request
Multilayer monochromator 
TypeW/Si
Reflectivity80%
Excitation energies 
W-La8.4 keV (DE<1 keV)
W-Lb9.67 keV (DE<1 keV)
Mo-Ka17.44 keV (DE<1 keV)
Bremsstrahlung33 keV
Sample Holder 
Sample seating12 for TXRF
Detector 
TypePeltier-cooled Silicon Drift Detector (SDD)
Active Area30 mm2 (other sizes available)
Resolution<133 eV (@Mn-Ka, 1ms peaking time)
AtmosphereAir or He Flux
Case 
DimensionsWidth 580 mm, Height 1631.5 mm, Depth 793 mm
Leakage X-Rays< 1 mSv/Year (full safety shielding according to the international guidelines)
CoolingExternal Chiller (1146h, 570w, 740d)
Software 
AcquisitionSelection of excitation energy
Measurement batch setup
Detector parameter settings
AnalysisAutomatic Least Square Marquardt fit procedure for background determination and peak area calculation
Automatic / Manual search Function
Energy calibration refinement
Quantification via an internal standard using theoretical and/or experimental sensitivity curves for total reflection
Possibility of using different sensitivity curves, e.g. sample dependent

Acquisition Software

Windows software designed for the control of TX 2000 System includes features like batch programming of a set of measurements. The program can control different kinds of detectors and devices attached to the instrument. Control panels for scintillation, linear position sensitive detectors and XRF X-GLAB SDD detector are integrated.

Analytical Software

  • Least square Marquardt fit procedure for the area calculation (spectral analysis)
  • Automatic/manual search function
  • Manual or automatic calibration of energy.
  • Quantification via an internal standard using theoretical and experimental sensibility curves for total reflection.
  • Environmental Analysis: water, dust, sediments, aerosol (ISO/TS 18507:2015, ISO 20289:2018)
  • Medical/Pharma: toxic elements in biological fluids and tissue samples, catalyst residues
  • Forensic Science: analysis of extremely small sample quantities
  • Pure chemicals: acids, bases, salts, solvents, water, ultrapure reagents
  • Oils and greases: crude oil, essential oil, fuel oil, gasoline, jet fuel
  • Pigments: ink, oil paints, powder
  • Nuclear Industry: measurements of radioactive elements

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