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DIFRAC Single-Crystal Diffractometer Output-Conversion

General Information

DIFRAC converts single-crystal diffractometer output files as produced by manufacturers' software into a standardized instrument-independent form consisting of a clear, complete, well-documented record of the sample and the diffraction measurements performed upon it. Information not already available in the manufacturers' diffractometer files is obtained in an interactive question-and-answer session. The software is written in a modular way. The original authors of DIFRAC provided modules for Enraf-Nonius CAD-4, Philips PW1100, Siemens P21, Stoe STADI4 single-crystal diffractometers and later a module for Rigaku-Denki RD5 by J.R. Hester was kindly made available. Output is in CIF (Crystallographic Information File) format.


DIFRAC, single-crystal diffractometer output-conversion software by H.D. Flack, E. Blanc and D. Schwarzenbach (1992), J. Appl. Cryst. 25, 455-459. Contact Howard Flack

WWW distribution

Distribution by anonymous ftp

DIFRAC is distributed by anonymous ftp from subdirectory pub/soft/crystal/difrac at ftp.unige.ch as unpacked source code and documentation files in ASCII. Read the README.1ST file for information to get started.

5th February 1997
Howard Flack