DIFFRACplus SEARCH

SEARCH, the search/match option of the EVA, provides for an unique full pattern approach for qualitative phase analysis. This approach handles even complicated multiphase mixtures and trace phases readily. Since 1988 [1] no other software package ever challenged the performance, speed, accuracy and ease of use of SEARCH:

"The results of this strategy ... have been so dramatic as to be considered a new generation of computer software" [2]

"Perhaps the most important innovation in search/match procedures in recent years..." [3]

Not unexpectedly SEARCH performed best in the international Search-Match Round Robin SMRR 2002 www.cristal.org/smrr.

With full PDF4 support integrated, SEARCH is the most powerful phase identification software on the market also in the foreseeable future: "A new step in the development of Powder Diffraction is certainly there." groups.yahoo.com/group/sdpd/message/961

  • Search on the entire observed pattern using all data points
    • no restriction to the most intense reflections
    • no disregard of reflection asymmetries or shoulders
    • no disregard of background regions
  • No peak search required
  • No preselection of peaks required
  • Extremely tolerant with preferred orientation or poor particle statistics effects causing distorted intensities or missing reflections
  • Consideration of solid solution effects causing peak shifts
  • Consideration of sample uncertainties such as sample height causing 2q errors

[1] Caussin, P., Nusinovici, J. & Beard, D.W. (1988). Adv. X-ray Anal., 31, 423 - 430.

[2] Jenkins, R. & Snyder, R.L. (1996): Introduction to X-ray Powder Diffractometry. Wiley - Interscience, 349-350.

[3] Langford J.I. & Louër, D. (1996): Powder Diffraction. Rep. Prog. Phys. 59, 131-234.