popLA Manual (PDF) - Materials Science and Engineering

The width of each peak in degrees, the distance (in 2θ degree) between the point at which intensity
decays to background level at the high side of the peak and corresponding point on the low side of the
peak.
This information can be obtained from a slow 2θ scan. When this option is selected popLA will prompt:
Enter name of file : specname
Enter only the filename; the .DFB extension will be added and the file stored in the default directory. (At Los
Alamos, .DFB files are generally named in such a way that both the material and the slit width is incorporated
into the file name, i.e. “TI3ALS40” for Ti3Al, slit width 4.0 mm.) When full pathnames are entered all but the
first eight characters are truncated, generating unexpected results. The rest of the inputs are self-explanatory.
Enter date, comments for the first line ( 1
DETAILS 24