Total Reflection X-ray Fluorescence Analysis (TXRF) using the high flux SAXS camera

P. Wobrauschek*, C. Streli, G. Pepponi, A. Bergmann, O. Glatter

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


Combining the high photon flux from a rotating anode X-ray tube with an X-ray optical component to focus and monochromatize the X-ray beam is the most promising instrumentation for best detection limits in the modern XRF laboratory. This is realized by using the design of a high flux SAXS camera in combination with a 4 kW high brilliant rotating Cu anode X-ray tube with a graded elliptically bent multilayer and including a new designed module for excitation in total reflection geometry within the beam path. The system can be evacuated thus reducing absorption and scattering of air and removing the argon peak in the spectra. Another novelty is the use of a Peltier cooled drift detector with an energy resolution of 148 eV at 5.9 keV and 5 mm2 area. For Co detection limits of about 300 fg determined by a single element standard have been achieved. Testing a real sample NIST 1643d led to detection limits in the range of 300 ng/l for the medium Z.

Original languageEnglish
Pages (from-to)569-572
Number of pages4
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Issue number1-3
Publication statusPublished - 11 Apr 2002

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation

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