Re: Explaining for broadening of peaks due to a shift of theta in theta-two theta scanning?

Dear Huy, as it was pointed out in previous letter by Joerg Bergmann, line broadening is caused by violation of theta-2theta relationship. More info can be found in the following articles: 1. R. Berthold. Z. Angew. Phys. 7 (1955) 443. 2. H. Toraya, J. Yoshino. J. Appl. Cryst. 27 (1994) 961. Be

Fullprof manual?

Dear Rietvelders, recently I had an urge in reading Fullprof manual, but found that it is not available via the link: http://www.ill.eu/sites/fullprof/downloads/FullProf_Manual.zip All I can see is the error message: The requested URL /sites/fullprof/downloads/FullProf_Manual.zip was not found o

Re: Fullprof manual?

Dear all, thanks a lot for the manual copies! I have now a large collection of them :) I believe Emma Suard has already contacted the responsible person about the issue with download link. Sincerely, Eduard. On Fri, 18 Jul 2014 10:21:45 +0200, Alan Hewat wrote > Did you try clicking "Support"

Re: XRD scan of crystalytes grow on surface of other crystalytes powder

Dear Shay, that could be explained in a lot of ways, including your new phase is possibly amorphous, or just too thin, or the amount is low, or corundum numbers are too different, etc. It is difficult to guess without knowledge on the exact system you study. By all means, the measurement techniq

Re: Powder Diffraction Discussion Group on Facebook

Dear all, my five cents to this discussion, if I may add. The problem of facebook for me is that there is no search mechanism. As a consequence, questions one and the same will appear again and again as we saw here and how it is on ResearchGate now. Add content built-in filtering on top of that

Re: Powder Diffraction Discussion Group on Facebook

: 'Eduard E. Levin' ; rietveld_l@ill.fr Subject: RE: Powder Diffraction Discussion Group on Facebook In the right side under the picture, there is search in this group function -- Eduard Levin Department of Electrochemistry Chemical Faculty Moscow State University Leninskie Gor

RE: Parafocussing definition?

Dear James, For me too, please, if it would not be much of a trouble. Thank you in advance! Eduard On Mon, 2 May 2016 11:09:31 +, Cline, James Dr. (Fed) wrote > Bob Cheary and I developed and presented a workshop several times in the > 1990's that included a discussion of this issue.  I can

Re: error bars of lattice parameters

Dear Jin Peng, that is a bit time consuming, but possible. I suggest reading NIST SRM certificates, they contain description of sampling, data collection and treatment. For example, LaB6: https://www-s.nist.gov/srmors/view_cert.cfm?srm=660C That should give you a general idea. Kind regards, Edua

Re: Empyrean change in configuration

Dear Breogán Pato, not that I offer some assistance, but have a word of advice. I know that PANalytical people read the list, so for them and other experts a little bit more information is required to assist with your issue. Could you please be more specific? What kind of problems you face? For

Re: ITC scattering factors: Table 6.1.1.1: Ne

Hi Matthew, I checked 2006 edition (the last available at IUCr), and the value in the table is 2.517 for both s=0.60 and 0.65. Regards, Eduard From: Matthew Rowles Sent: Tuesday, April 11, 2023 2:12 PM To: RIETVELD_L Distribution List Subject: ITC scattering factors: Table 6.1.1.1: Ne Hi a

Re: recommended questions to XRD supplier.

Hi Shay, We owe Aeris, so maybe I can provide some experience. The external loader is absolutely outstanding and adds flexibility to the experiment - no need to stop the experiment to load/unload samples as with Miniflex, D2 or TDM-20. Overnight/weekend measurements of up to six samples - very

Warren-Averbach analysis

Dear members of Rietvel list! I am newbie in size/strain analysis and I have many questions. One of them is about calculation of crystallite size distribution. As far as i know it is stated that W-A analysis can only be applied to patterns obtained with monochromatic radiation. It is not clear how

Re: cRs

Dear Olga! Maybe you should explain what do you mean by saying "background"? To my opinion you were given an exhaustive answer, but you still disagree with companions. This is puzzling. I suppose that you are assigning as background contribution from partially amorphous phase. Glass sample hol

Re: grazing angle diffraction in single-crystal Si

Hi Mikko, it is interesting. You can often observe such bumps when dealing with crystals oriented (or cutted) with some small angle off the axis (say, <5 degrees). Then this bumb is just a Bragg tail of very intensive reflection and it can be very broad. We see this bumps in our Si crystals wh

Re: grazing angle diffraction in single-crystal Si

Hi Angel, I think that such patterns will be of little help to you. If you have a perfect Si crystal then double diffraction may appear and forbidden reflections can be seen. Yesterday we discussed with my collegue his diffraction experiments with Si crystal cut along (100). He said that he c

Re: grazing angle diffraction in single-crystal Si

Dear Jun Lu, he is using Rigaku Ultima IV with standard scintillation counter. With regards, Eduard. - Original Message - From: "lu...@ekm" To: Sent: Saturday, April 25, 2009 3:58 PM Subject: Re: grazing angle diffraction in single-crystal Si Dear Levin: In principle, kinetic sc

Re: defect measurement

Dear Angel, I think you should pay attention to articles by Paolo Scardi and Matteo Leoni. They have developed a very powerful technique called WPPM (Whole Powder Pattern Modelling) which is designed for microstructural analysis from XRD data. I suggest that you should check these papers: 1.