Availability of TWIN3.0 for Windows software by V. Kahlenberg and T. Messner

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2 total messages Started by L. Cranswick Sun, 10 Dec 2000 21:44

#80

Author: L. Cranswick
Date: Sun, 10 Dec 2000 21:44

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A new version of the Twin3.0 for Windows software is now 
available by contacting the authors via Email:

 V. Kahlenberg and T. Messner, FB Geowissenschaften, 
 Kristallographie, Universitt Bremen, Bremen, Germany. 
  E-mail:  vkahlen@uni-bremen.de

The principle features of Twin3.0 for Windows are : 

1.Single crystal data sets can be tested if they are subject 
    to twinning by merohedry. 

2.The volume fractions of the different twin domains can 
be estimated. 

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There is also a Single Crystal Twinning Software and Web Resources
page at:
  http://www.ccp14.ac.uk/solution/twinning/

If there are missing resources and programs that could be
added, please feel free to pass this information on.

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

Re: Availability of TWIN3.0 for Windows software by V. Kahlenberg and T. Messner

#81

Author: Armel Le Bail
Date: Mon, 11 Dec 2000 07:59

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"L. Cranswick" wrote:

> There is also a Single Crystal Twinning Software and Web Resources
> page at:
>   http://www.ccp14.ac.uk/solution/twinning/
>
> If there are missing resources and programs that could be
> added, please feel free to pass this information on.

The Crystallography Source Code Museum contains TMACLE,
a crystal structure refinement program designed for crystals with
twinning by twin lattice symmetry (TLS) (no evidence for
doubling of spots).

   http://sdpd.univ-lemans.fr/museum/

Applications were made on 6 documented cases in the period
1989-92. But that program has not evolved and may be considered
as obsolete. It may just be interesting because the source code is
available. It was built from a multi-pattern Rietveld code, changing
the multi-pattern option to a multi twin domain option.

Best

Armel Le Bail
http://sdpd.univ-lemans.fr/course/

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