CPD News Index

World Directory of Powder Diffraction Programs Release 1998

Syb Gorter and Deane K. Smith The World Directory of Powder Diffraction Programs is a continuing project with the goal to identify and catalogue all the programs available for powder diffraction analysis. It is a joint project of Syb Gorter of the Program Exchange Bank in the Netherlands and Deane K. Smith of the USA and is sponsored by the Commission on Powder Diffraction of the International Union of Crystallography. The main collection point is Daresbury, Great Britain. This collection point can be reached at the following address.

ftp://ftp.dl.ac.uk/wdpp/

This site contains programs categorized into 22 areas of activity and 6 subgroups. The directory structure is designed such that one has to choose first the platform. The next level contains subdirectories named after the Table numbers in the printed catalogue.

The table numbers cover the following categories:

Table01.	Crystallographic databases
Table02.	Analysis packages
Table03a. 	Diffractometer Control
Table03b. 	File manipulation
Table03c. 	Peak Finding
Table03d. 	Film reading
Table04.  	d Generation
Table05. 	Graphical d I display
Table06. 	Phase identification
Table07. 	Automatic Indexing
Table08. 	Refinement/indexing
Table09. 	Refinement/error analysis
Table10. 	Metric analysis
Table11. 	Pattern Generation
 
Table12a. 	Small groups profile fitting
(no unit cell restraint)
Table12b.	Full pattern profile fitting
Table13. 	Deconvolution
Table14. 	Crystallinity/strain/texture
Table15. 	Rietveld   structure refinement
Table16. 	Quantitative analysis
Table17. 	Structure Determination (powder)
Table18. 	Structure display
Table19. 	Small angle Scattering
Table20. 	Miscellaneous programs
Table21. 	Epitaxy
Table22. 	Teaching

All programs are available as zip files and can be unzipped on different platforms using the unzip software available in the first level UNZIP directory. Further detailed descriptions on the web for all programs is under construction. A printed version published in 1995 by the Program Exchange Bank is still available (Current price US$ 50, postage and handling included). Contact Syb Gorter (sgorter@pobox.LeidenUniv.nl) for a copy. A discount of US$15 is available for payment in cash.
Send orders to:
Drs. Ing. S. Gorter
43 van Lennepdreef, NL-2353 NJ Leiderdorp, the Netherlands
E-Mail address: sgorter@poboxLeidenUniv.nl
Fax: (31) 71 582 0827
Phone: (31) 71 527 4415, during business hours or (31) 71 589 1388
Manager of the Program Exchange Bank, the Central Distribution Site for Powder Diffraction Software
Maintainer of the World Directory of Powder Diffraction Software