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Subject: Re: XRD patern simulation software -- From: Werner Fischer
Subject: DISCUS 3.0 release -- From: Thomas Proffen

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Subject: Re: XRD patern simulation software
From: Werner Fischer
Date: Sun, 24 Nov 1996 16:41:22 -0800
Richard Rateick, Jr. wrote:
> 
> Is there a PC based software package available that will calculate a
> powder diffraction patern given the space group, lattice parameters and
> atomic arangement (basis group)?
> 
> -------------------------------------------------------------------------> Richard G. Rateick, Jr., P.E.          |The information given here is for
> Materials and Metallurgical Engineer   |reference only, and must not be
> rateick@michiana.org                   |considered a professional opinon.
Try the program POWDER CELL for IBM PC under MS-DOS. You can get it via 
anonymous ftp to host ftp.zam.kfa-juelich.de, path 
/iwe/xtallography/powdcell, program pc18c.zip. You have to umcopress it 
using pkunzip.
It a pretty good program for teaching as well as for scientific purposes. 
The authors (Krause & Nolze, BAM Berlin) are transferring the program now 
to the MS Windows platform.
-- 
*************************************************************
      Dr. Werner Fischer
      Research Centre Juelich GmbH
      Institute of Materials for Energy Systems
      P.O. Box  19 13
      D - 52425   J U E L I C H
      F.R.G.
      Phone: +49-2461-61-5052
      Fax:   +49-2461-61-8178 and ...-3699
      Internet:        w.fischer@kfa-juelich.de
      Multimediabox:   +49-2561-91371-6549
      Please notice :
      The opinion expressed in this mail or posting does
      not necessarily reflect the views and policies of
      the Research Centre Juelich GmbH or of the Institute
      of Materials for Energy Systems.
**************************************************************
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Subject: DISCUS 3.0 release
From: Thomas Proffen
Date: Mon, 25 Nov 1996 12:42:59 +1100
Hi !
We are proud to announce, that version 3.0 of the program DISCUS
has been released today. The major changes and new features are
listed at the end of this email.
The new DISCUS WWW pages and the new distribution can be found at
the following two locations:
  http://rschp2.anu.edu.au:8080/proffen/discus/discus.html
  http://www.kri.physik.uni-muenchen.de/geo/crystal/discus/discus.html
DISCUS is a program for defect structure simulation and diffuse
scattering. A basic description can be found on the WWW pages above.
Here is a list of the new features and major updates of version 3.0:
- The package contains the new program KUPLOT, a plot program
  using the same command language specially designed to display
  DISCUS results. But it can also be used for all other 'plotting
  jobs'. It supports X11 and TEK4014 screens and can produce
  POSTSCRIPT and HPGL output.
- New DISCUS sublevel 'stack' for simmulation of stacking faults.
- New DISCUS sublevel 'symm' for symmetry related crystallograhic
  calculations.
- Completely rewritten Fourier routine which is ~5 times faster
  than the one in 2.02. Additionally it allows to subtract the
  average structure factor and the usage of lots, i.e. intensity
  is calculated as average of intensity of many small crystal
  volumes.
- RMC part allows to define complex RMC moves in external subroutine
- Improved structure plotting sublevel
- Basic command line editing now available including command
  recall via. arrow keys :-)
- New manual, online help also as HTML files and a set of tutorial
  macros for easy learning of the program usage and features.
- Lots of small changes and bug fixes, see CHANGES.LOG in the
  program directories for a detailed list.
So don't wait, download it right now. If you have any problems
or come across a bug, please send us an email.
Regards
Thomas Proffen
Reinhard Neder
--
 ,-_|\    Dr. Thomas Proffen
/     \   Research School of Chemistry
\_,-._/   Australian National University
     v    Canberra, ACT 0200, Australia
Phone:    +61 6 249 3579
Fax  :    +61 6 249 0750
Email:    proffen@rsc.anu.edu.au
WWW  :    http://rschp2.anu.edu.au:8080/proffen/welcome.html
and
Dr. Reinhard Neder               Institut fuer Kristallographie, LMU
Phone:  (+49 89)2394 4314        Theresienstr. 41
Fax:    (+49 89)2394 4334        D-80333 Muenchen, Germany
Email:  neder@yoda.kri.physik.uni-muenchen.de
www  :  http://www.kri.physik.uni-muenchen.de/geo/crystal/crystal.html
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