In a quite interesting thesis (Pierre Teissier) about the history of solid state chemistry in france : http://sdpd.univ-lemans.fr/these-teissier.pdf In french...
Thank you Armel, very interesting. I will read the whole thesis. For the moment I add some other text from this thesis. I like very much the theory of ...
The 1983 Crystallographic Computing School, organised by Prof. Sydney Hall and Prof. Tamaichi Ashida, was held in Kyoto, Japan at the same site as the upcoming...
Hello, crystallographical experts: i had never got a satisfying refinement solution for my interesting materials, so i began to doubt our X-ray device...
Lujun@EKM
jun.lu@...
Jun 10, 2008 3:09 pm
2198
This recent posting appears to have java code that wants slightly dangerous write permission on my computer. I'm not advising anybody else what kind of emails...
pstephens@...
Jun 10, 2008 3:18 pm
2199
... STOE STADI-P devices are very well capable of giving excellent data. We have solved and refined over 30 crystal structures of small organic molecules (most...
In spacegroup F d 3- m there a 2 origins. Put the Si on 1/8 1/8 1/8 instead of 0 0 0. The Stadi P is a brilliant instrument (curved Ge monochromator, PSD). We...
Matthias Gottschalk
mgott@...
Jun 10, 2008 4:58 pm
2201
Hello again, everyone: i have just received a reply from Prof. Stephens, indicating some problems about the attachment. i am so sorry for this convenience, but...
Lujun@EKM
jun.lu@...
Jun 10, 2008 5:05 pm
2202
Ok, just as I thought. It is the wrong atom position. 0 0 0 has in the default origin setting a multiplicity of 16 and not 8. So put the Si on 1/8 1/8 1/8 and...
Matthias Gottschalk
mgott@...
Jun 10, 2008 5:39 pm
2203
Hello, All: Thanks to the suggestion from Prof. Gottschalk, i took (1/8,1/8,1/8) origin instead of (0,0,0). It is much improved and it shows the calibration...
Lujun@EKM
jun.lu@...
Jun 10, 2008 6:07 pm
2204
Hi, we have been using Stoe Stadi_P for 16 years and have never encountered problems with positioning. My advice for you is to read technical manual, part...
Lubomir Smrcok
uachsmrk@...
Jun 10, 2008 6:15 pm
2205
On Tue, 10 Jun 2008 20:15:15 +0200 (CEST) ... well, reflection conditions for special sites (only one in Si)? ;)...
Matthias Gottschalk
mgott@...
Jun 10, 2008 6:38 pm
2206
Hi experts: Thank the advice from Prof. Smrcok. Surely, i have will to fix the problem, as soon as it is possible. About your second comment, although i have...
Lujun@EKM
jun.lu@...
Jun 10, 2008 6:58 pm
2207
Hi, All: This morning i tried further refinement work and eventually i got a R value of 0.0518. As a conlusion, the critical steps are summarized: Step...
Lujun@EKM
jun.lu@...
Jun 11, 2008 11:39 am
2208
Dear Lujun, I apologize if I did not let attention enough about your recording conditions (not yet had a look to your raw data): 1°) Your work with a STADI-P...
Dear Dr. Jean-Marc LE MEINS Thanks for your attention at first. The answers to your questions are below: 1)linear PSD was used with curved Ge(111)...
Lujun@EKM
jun.lu@...
Jun 12, 2008 5:13 pm
2211
Dear Lujun I hope my answer will appear in the mailing list of the sdpd group this time ! I had a look on your raw data named "silicon.raw" via the rawdata ...
Dear Dr. Jean-Marc LE MEINS The silicon.raw related measurement was done by a collegue. i had the same doubt with you about the information in raw data, then i...
Lujun@EKM
jun.lu@...
Jun 13, 2008 6:33 am
2213
Hello evevrybody, Here Ihave bruker D8 advance PXRD,and TOPAS softwares. Any of u working on TOPAS(R,S and P),pls that I can clear my doubts.. Shilpa, ...
Dear Lujun ... OK, this was what I though... This is always a kind of privilege to have its onwn diffractometer and be abble to work with it freely ! ... Yes,...
A quickish post that Bruker-AXS has released XRDWizard V2.9, which allows for Variable Count Data (VCT) data collection, where the measurement time is...
The following is sent on behalf of the Canadian National Committee for Crystallography (CNCC) and mainly for Canadian based crystallographers, including those...
Crystallographic Software Fayre at IUCr 2008 Osaka Congress http://www.iucr.org/iucr-top/comm/ccom/2008softwarefayre/ Thanks to the generosity of the IUCr 2008...
The registration deadline for the 2008 Crystallographic Computing School is in two weeks: *** July 25 *** The schedule of the program including abstracts from...
The registration deadline for the 2008 Crystallographic Computing School is in two days: *** July 25 *** The schedule of the program including abstracts from...
Dear All, I would like work in the field nano crystalline PDF analysis, for that I need X - windows, I downloaded the cygwin from the web and installed in the...
Murugesan S
muruges@...
Aug 1, 2008 7:26 am
2222
Hi all, can someone direct me on how to determine carbon content in amorphous SiC using XRD. Currently we are doing dynamic SIMS analysis, however I think...
Hello all, Does anyone know why my Mar 345 image plate leaves a large background at high 2theta angles in my powder x-ray diffraction pattern. My procedure...
Hello Yetta, Would you like to deposit your raw ascii data elsewhere and then share us a link? i believe it helps for discussion, and solutions, hopefully. ...
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