X-ray Diffraction

Reliable and accurate phase analysis – EVA

DIFFRAC.SUITE TM Software EVA
EVA Software

Since its first release, EVA's search/match module is generally appreciated as the most reliable and most accurate tool for phase identification. Correspondingly, EVA performed best in an international Search-Match Round Robin (Le Meins et al., 2002, www.cristal.org/smrr). Since then numerous improvements have further differentiated EVA from conventional software for phase analysis:

  • Simultaneous phase identification (search / match) and accurate quantitative phase analysis based on RIRs (reference intensity ratios)
    • Can be performed manually or fully automatic
    • Support of the spiking method to put all quantitative results on an absolute scale
  • Highly sophisticated residual search with respect to already identified phases, thus greatly improving analysis of minor phases
  • Support of Variable Counting Time (VCT) data for highly accurate trace phase analysis thanks to significantly decreased Lower Limits of Detection (LLoD)
  • Support of ICDD PDF2/PDF4+/PDF4 Minerals/PDF4 Organics and COD reference databases
  • Simultaneous search in multiple reference databases
  • Grouping of candidate patterns phases to handle the ever-increasing number of similar or nearly identical reference database entries