I also dislike the phrase "Debye-Waller factor" for the exafs disorder term. In crystallography, the Debye-Waller factor refers to disorder of atoms about their lattice positions. In exafs, the disorder is about the path length of the N-body configuration -- clearly not the same thing. I am, apparently, in the minority on this topic -- "Debye-Waller factor" is in wide use in the exafs literature. But, as everyone here knows, I often like to stand up on my soapbox and yell into the crowd. ;-)
Bruce, While you're on your soapbox, if we drop "Debye-Waller factor" to describe the EXAFS disorder term, would you suggest using only "disorder" or do you have a better phrase to use? Rich -- Richard Mayes Barnes Group 450/452 Buehler Hall Department of Chemistry University of Tennessee Knoxville, TN 37996