Laboratory of X-ray powder diffraction analysis is equipped with diffractometer Bruker D8 ADVANCE DAVINCI.DESIGN. Its configuration allows performing any common analysis used in geosciences.

Technical specifications

Generator: Ÿ

  • maximum continuous power: 3 kW
  • high voltage 20-50 kV
  • current 5-60 mA

Goniometer:

  • vertical Bragg-Brentano goniometer with theta-theta geometry
  • measurement circle diameter: 560 mm
  • angular range: -110° to 168°
  • continuous or stepper working regime
  • smallest addressable increment: 0,0001°
  • source of X-rays: ceramic tube with long fine focus and Cu-anode (2.2 kW)
  • motorized divergence primary and secondary slit assembly
  • primary and secondary Soller slits
  • auto-changer with 3 magazine towers for up to 15 samples
  • rotational sample stage
  • specimen holder rings for random and oriented samples
  • capillary sample stage
  • focusing Göbel mirror for Cu-radiation
  • parallel beam POLYCAP, spot diameter >4 mm
  • high-temperature chamber, temperature range: RT to 1600°C

Detector:

  • Sol-XE solid state energy dispersive X-ray detector with Si(Li) chip cooled by Peltier elements
  • operational range: 3 keV - 30keV
  • energy resolution 250 eV at 103 cps using 6 μs pulse shaping time for 5.9 keV
  • energy resolution 300 eV at 104 cps using 2 μs pulse shaping time for 5.9 keV
  • detection efficiency: >98% for Cu-radiation
  • active area: 4 x 15 mm2

Data processing software:

  • EVA
  • TOPAS
  • PDF2 database

Sample pre-treatment:

  • laboratory for clay minerals separation
  • Spry Drying Kit (Hillier 1999, Clay minerals, Vol. 34, p. 127-135)
  • McCrone micronizing mill
Contact person:

RNDr. Adrian Biroň, CSc.

+421 48 321 3211
ks.b1575900823bvas@1575900823norib1575900823

 

Workplace:

Banská Bystrica, Ďumbierska 1, Geological Division