Re: [External] Re: some uncertainties regarding the Rietveld refinement results in TOPAS

2024-11-08 Thread Matthew Rowles
I agree with everything Dave said. I was a little terse in my response. Physically, altering a unit cell's contents is going to alter its size and the intensities. On Thu, 7 Nov 2024, 20:49 Bish, David L, wrote: > Matthew has given a nice summary for you, but I'd like to add one thing. > Whene

Re: some uncertainties regarding the Rietveld refinement results in TOPAS

2024-11-08 Thread Matthew Rowles
Hi Daniel The peak shape variation comes from exponential absorption of the incident and directed X-rays due to their interaction below the specimen's surface. In the case of a finite thickness sample, this exponential gets truncated. I'm pretty sure I talk about this in Rowles & Buckley. Intensi