Re: GSAS: interpretation of strain broadening

2006-10-25 Thread Jon Wright
Let's say one gets a value of 0.1% strain. => width of the distribution of cell parameters in the sample But on the other hand there are also the unit cell sigmas. => error bar on the average value of the cell parameters How can one visualise this? There is a distribution of cell para

RE: GSAS: interpretation of strain broadening

2006-10-25 Thread Von Dreele, Robert B.
Dear Franz, I'm sure there will be many opinions on this but here goes from me. The "sig" on the lattice parameters is only a measure of precision for the value and is not directly related to the microstrain broadening. It is more a measure of how well the peak positions can be collectively deter