A Preliminary Report of the Design and Results of the Second Round Robin to Evaluate Search/Match Methods for Qualitative Powder Diffractometry
- 1 January 1978
- journal article
- Published by Cambridge University Press (CUP) in Advances in X-ray Analysis
- Vol. 22, 133-142
- https://doi.org/10.1154/s0376030800016475
Abstract
Six computer synthesized data sets, each representing a mixture, and one physical mixture were prepared and widely distributed in order to study the various search/match methods and factors which affect their success. A total of 67 returns were received representing eight countries and three search methods. The participants were primarily from industrial laboratories. The average score exceeded 90%. The Hanawalt search method yielded the best overall score. Use of the Frequently Encountered Phases subfile decreased the search time by about 40% and marginally increased the success rate. For the physical mixture the Δd/d and ΔI/I values were measured to about 2/1000 and 40% respectively. Use of an internal standard improved the d-values by a factor of 2 and resulted in better search/match performance.Keywords
This publication has 1 reference indexed in Scilit:
- A Round Robin Test to Evaluate Computer Search/Match Methods for Qualitative Powder Diffractometry.Advances in X-ray Analysis, 1976