Re: Re: Platon TMA analysis
Hello My previous questions were based on the assumption that either my calculations were wrong or that I had misunderstood something. However, the discrepancies are simply a result of round-off (I think). eg... the T matrix, when restored from Platon's EVs using Vect*Val*inverse(Vect), is: 1e-3 4.35389 -0.00488 0.0 4.35611 0.0 3.0 The stated matrix is: 1e-3 4.36 0.00 0.00 4.36 0.00 3.00 The difference between the corresponding eigenvectors is large. Adam T11 T12 T13 T22 T23 T33 (if the formatting becomes corrupted)
CIF file conversion
Dear All A quick question: does anyone know of any programs that will convert CIF data into a GSAS readable EXP file format? Many Thanks Rory. Dr R.M. Wilson, Experimental Officer RPS School of Eng. and Materials, G27 G30 X-ray Laboratories, Francis Bancroft Building Queen Mary College University of London Mile End Road LONDON E1 4NS UK Tel: +44 (0)20 7882 7938 Fax: +44 (0)20 7882 7931
R: CIF file conversion
Dear Rory, you can do it by using expgui. Davide -Messaggio originale- Da: r.m.wil...@qmul.ac.uk [mailto:r.m.wil...@qmul.ac.uk] Inviato: giovedì 25 febbraio 2010 13.31 A: rietveld_l@ill.fr Oggetto: CIF file conversion Dear All A quick question: does anyone know of any programs that will convert CIF data into a GSAS readable EXP file format? Many Thanks Rory. Dr R.M. Wilson, Experimental Officer RPS School of Eng. and Materials, G27 G30 X-ray Laboratories, Francis Bancroft Building Queen Mary College University of London Mile End Road LONDON E1 4NS UK Tel: +44 (0)20 7882 7938 Fax: +44 (0)20 7882 7931
RE: Powder diffraction and Fuji image plate
Dear Natale, I think that the BAS-1800 and BAS-1800 II are discontinued products by now. And be aware that the Fuji products will now be sold under a different brand, GE Healthcare, http://www.fujifilm.com/products/life_science_systems/news/n091001/index.html This just to say that you should make sure that you buy something that you can also get serviced. Best of luck, Jens Jens Wenzel Andreasen Senior Scientist Solar Energy Programme Risø DTU Technical University of Denmark Risø National Laboratory for Sustainable Energy Frederiksborgvej 399, P.O. Box 49 Building 111, modul 11 4000 Roskilde Direct +45 4677 4702 Mobil +45 2132 6301 j...@risoe.dtu.dk www.risoe.dtu.dk From: Natale Perchiazzi [mailto:nprietv...@yahoo.it] Sent: Monday, February 22, 2010 12:57 PM To: lista rietveld Subject: Powder diffraction and Fuji image plate Dear All, we are going to purchase a Fuji image plate system (Fuji BAS-1800) for our X-ray lab. I am planning to use these plates for powder diffraction, to be performed on small (0.1mm) mineral fragments; the device to be used is still to be assembled. A possible choice could be to use a collimator, a Gandolfi camera basement for the crystal motion, the diffraction effects being then recorded in flat-plane geometry by the Fuji plate. Another choice would be to put the flat plane plate on a 4-circle diffractometer. There are several important details to be considered, and I wonder what to do to optimize the device, provided that we will have a budget of some Keuro to purchase the various components of the device. I will be happy to hear your advices and to give more informations to anyone interested. best regards Natale Perchiazzi
Re: CIF file conversion
Hi all, EXPGUI converts a .cif file in a .org, at least i didn't find another extension. I use ConvX to convert measured files in a .exp. Hope this will help, Alexandra Seclaman seclaman_alexan...@yahoo.com a.c.secla...@gmail.com --- On Thu, 2/25/10, Davide Levy davide.l...@unito.it wrote: From: Davide Levy davide.l...@unito.it Subject: R: CIF file conversion To: r.m.wil...@qmul.ac.uk, rietveld_l@ill.fr Date: Thursday, February 25, 2010, 2:52 PM Dear Rory, you can do it by using expgui. Davide -Messaggio originale- Da: r.m.wil...@qmul.ac.uk [mailto:r.m.wil...@qmul.ac.uk] Inviato: giovedì 25 febbraio 2010 13.31 A: rietveld_l@ill.fr Oggetto: CIF file conversion Dear All A quick question: does anyone know of any programs that will convert CIF data into a GSAS readable EXP file format? Many Thanks Rory. Dr R.M. Wilson, Experimental Officer RPS School of Eng. and Materials, G27 G30 X-ray Laboratories, Francis Bancroft Building Queen Mary College University of London Mile End Road LONDON E1 4NS UK Tel: +44 (0)20 7882 7938 Fax: +44 (0)20 7882 7931
Re: CIF file conversion
EXPGUI can import coordinates from a CIF (in the Phase panel) and can import diffraction data (in the Histogram panel). The represents two major steps towards creating an EXP file, but the user needs to supply plenty of other information, for example, an instrument parameter file. Brian On Feb 25, 2010, at 6:31 AM, r.m.wil...@qmul.ac.uk wrote: A quick question: does anyone know of any programs that will convert CIF data into a GSAS readable EXP file format? Brian H. Toby, Ph.D.office: 630-252-5488 Senior Physicist/Section Head for Scientific Software Advanced Photon Source 9700 S. Cass Ave, Bldg. 401/B4192work cell: 630-327-8426 Argonne National Laboratory Argonne, IL 60439-4856 e-mail: brian dot toby at anl dot gov We will restore science to its rightful place, and wield technology's wonders... We will harness the sun and the winds and the soil to fuel our cars and run our factories... All this we can do. All this we will do.
RE: Powder diffraction and Fuji image plate
we are going to purchase a Fuji image plate system (Fuji BAS-1800) for our X-ray lab. I am planning to use these plates for powder diffraction A little off topic, but ILL Grenoble uses Fujii image plate systems for single crystal neutron diffraction (LADI and VIVALDI) eg http://www.ill.eu/instruments-support/instruments-groups/instruments/ladi but is testing equivalent CCD readout scintillator systems http://www.ill.eu/about/movies/experiments/cyclops-first-tests/. The main difference is that neutron versions use different types of image plates/scintillators. Image plates are not expensive, but you still need to unload them and use a relatively expensive machine to read them; given advances in alternative detector technology, I am not sure about their long-term future. Wire detectors for X-ray powder diffraction are also quite expensive, but if a flat image plate can be used at all (?) you might also consider a simple X-ray CCD-scintillator camera of the kind we make for neutrons :-) http://www.neutronoptics.com/cameras.html I have no idea if such a thing would work for X-ray powder diffraction, but would be interested if some-one would like to try. Alan __ Dr Alan Hewat, NeutronOptics, Grenoble, FRANCE alan.he...@neutronoptics.com +33.476.98.41.68 http://www.NeutronOptics.com/hewat __
