Dear Rietvelders,
(I hope this list is appropriate for this question). I am trying to set up a new D8 diffractometer from Bruker, and have it set up with a Vario monochromator focusing on a sample in a capillary. Of course I hope to do Rietveld refinement on the samples eventually. But there is an error in two theta of the peak positions on all samples, and the error is linear in two theta. At 40 degrees the error (measured minus expected) is about 0.020 degrees, at 80 degrees the error is about 0.040 degrees, etcetera. Has anyone ever seen anything like this and do you know where it could come from? Thank you very much, - Kurt ********* Kurt Leinenweber Dept. of Chemistry and Biochemistry Arizona State University Tempe, AZ 85287-1604 phone (480)-965-8853 fax (480)-965-2747 ***********