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Conversion Electron Mössbauer Spectrometer

Workplace of device "Conversion Electron Mössbauer Spectrometer"
Workplace: UPOL - Centre for Nanomaterial Research
Faculty: Faculty of Science - Department of Experimental Physics
Street: Šlechtitelů 11
City: Olomouc
Characteristic of workplace: The scope of the Centre is mainly concentrated on a research of nanometer-sized materials in various forms (powders, nanocomposites, coated particles, core-shell nanoparticles).

Among them, nanosized iron-containing materials constitute a significant group with a wide application potential.

Together with the nanomaterial research, the activities of the Centre are also devoted to the development of the Mössbauer spectrometers. Our electronic laboratory has developed a compact spectrometer for transmission Mössbauer spectrometry and currently develops a resonant and conversion-electron-based Mössbauer spectrometer.
Device "Conversion Electron Mössbauer Spectrometer"
Manufacter laboratoř Centra výzkumu nanomateriálů
Number of pcs. 1
Year 2006
  • Iron containing substance
  • Solid-state compact or a powder material (e.g. core-shell particles)
  • Maximal dimensions of 15 mm in diameter and up to 7 mm in thickness
  • It is possible to carry out measurements on electrically conductive samples, semiconductors as well as on insulators
Usage Conversion electron Mössbauer spectrometry (CEMS) and conversion X-ray Mössbauer spectrometry (CXMS) are a pair of methods with which help we can investigate Mössbauer radiation in backscattering geometry (BMS – Backscattering Mössbauer spectrometry). These methods are highly suitable for studying of phase analyses of surface layers and thin films due to a short range of conversion electrons (300 nm) and conversion X-rays (1-10 mm), respectively.

Applications: CEMS and CXMS are supporting methods in nanotechnology, material physics, metallurgy, chemistry, archeometry, geology and mineralogy. Recorded spectra can bear valuable information e.g. about corrosion processes and their inhibition (phosphatizing of steel, study of oxide layers), catalysis, magnetic structures, or investigation of changes in properties of wrought surfaces.
  • Detection technique: 57Fe Integral Mössbauer spectrometry of conversion electrons and conversion X-rays, respectively. 119Sn spectra can be recorded alternatively
  • Detector type: Proportional continuous gas flow counter for room temperature zero magnetic field measurements
  • Counting mixture: He + 0-25% CH4 (CEMS) or Ar + 0-25% CH4 (CXMS)
  • Detected radiation: 7.3 keV K conversion electrons (CEMS) or 6.3 keV Kα conversion X-rays (CXMS)
  • Registration: 2048 channels
  • Optional Spectrometer can be equipped by scintillation counter for simultaneous transmission Mössbauer spectrometry (TMS)
Manual CZ Datasheet
Extern No
Přesun No
Category of "Conversion Electron Mössbauer Spectrometer"
"Solid-state physics and magnetism", "Solid-state physics and magnetism"