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Rietveld Refinement

a procedure for carrying out a crystal-structure refinement using X-ray or neutron powder diffraction data, in which an entire powder pattern is simulated for a trial structure(s) and matched against the observed powder pattern; atomic parameters and other variables are modified to achieve an acceptable fit between the calculated and observed powder patterns.

Committee

Trace Materials

Date Added to Lexicon

01/15/2025

Standard Source (Designation Number Title of Standard. Publisher, Place, Year.)

ANSI/ASTM E1732-24e1 Standard Terminology Relating to Forensic Science. ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428, 2024. Source link

Reprinted, with permission, from ASTM E1732-24e1 Standard Terminology Relating to Forensic Science, copyright ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428. A copy of the complete standard is available from ASTM International, https://www.astm.org