Intensity issue with synchrotron data

2015-01-14 Thread Marco Taddei
Dear Rietvelders, Yesterday I was dealing with the refinement of silicon collected with synchrotron radiation at the MS beamline at SLS. The intensity of many reflections exceeds 10^6 counts, in some cases even reaching almost 10^7 counts. I noticed that the peaks exceeding 10^6 counts were kind

RE: Intensity issue with synchrotron data

2015-01-15 Thread Marco Taddei
Dear all, I warmly thank you for your many answers, anyway I noticed that I did not explain correctly the issue in my previous mail, which was rather misleading. I apologize for this.The original data is OK, there are no problems due to detector saturation, the problem arises when I try to input

R: Alumina standard for quantitative analysis

2018-01-23 Thread Marco Taddei
Another option could be to prepare the standard in-house. This paper: J. Appl. Cryst. (2014). 47, 136–145 describes an annealing procedure to produce Al2O3 with a very low amorphous content (even lower than the NIST standard). Marco Da: rietveld_l-requ...@ill.fr

R: Rietveld

2018-08-18 Thread Marco Taddei
Dear all, I have been following this conversation with a lot of interest over the last few days, I did not know much about the early days of powder diffraction and how profile refinement methods were born and evolved and I have learnt many things. I just want to thank everyone who contributed t