[sdpd] For Powder Indexing: New Truecell software and Truecell enabled Chekcell update

[L.M.D.Cranswick...@dl.ac.uk]

There is are new addition to the LMGP suite by Jean Laugier and 
Bernard Bochu called "Truecell".

Truecell searches for more symmetric, higher symmetry cells that could
be a "better" solution to powder indexing data. This can be useful where
powder indexing programs favour small, low symmetry cells; and a
higher volume, higher symmetry cell could be a better solution.

The Chekcell graphical powder indexing helper and spacegroup
assignment software now has a version of Truecell included with it - 
accessible via the "Cell Parameters" window. 

(Truecell (and Chekcell) can read *.SUM Summary results files generated 
by the Crysfire Powder Indexing Suite by Robin Shirley)

Tutorial runthroughs showing Truecell in action are available
from the CCP14 website:

  Basic Demonstration of Truecell on Y2O3 Crysfire results
    http://www.ccp14.ac.uk/tutorial/lmgp/trucella.htm

  Using Truecell on a high FOM monoclinic trial solution
    http://www.ccp14.ac.uk/tutorial/lmgp/truecell_large_hex.htm

----

Truecell and Chekcell Download:
  UK: http://www.ccp14.ac.uk/ccp/web-mirrors/lmgp-laugier-bochu/
  CA: http://ccp14.sims.nrc.ca/ccp/web-mirrors/lmgp-laugier-bochu/
  AU: ftp://ftp.minerals.csiro.au/pub/xtallography/ccp14/ccp/web-mirrors/lmgp-laugier-bochu/


Crysfire Powder Indexing Suite Download:
  UK: http://www.ccp14.ac.uk/ccp/web-mirrors/crys-r-shirley/
  CA: http://ccp14.sims.nrc.ca/ccp/web-mirrors/crys-r-shirley/
  AU: ftp://ftp.minerals.csiro.au/pub/xtallography/ccp14/ccp/web-mirrors/crys-r-shirley/

Cheers,

Lachlan.


-- 
Lachlan M. D. Cranswick

Collaborative Computational Project No 14 (CCP14)
    for Single Crystal and Powder Diffraction
Daresbury Laboratory, Warrington, WA4 4AD U.K
Tel: +44-1925-603703  Fax: +44-1925-603124
E-mail: l.cranswick...@dl.ac.uk  Ext: 3703  Room C14
                           http://www.ccp14.ac.uk