Predicting the accuracy of mineral phase analysis by X-ray diffraction using Monte Carlo modelling

Autor:	Joel O'dwyer, Greg Roach, James Tickner
Rok vydání:	2014
Předmět:	Diffraction Radiation Materials science Analyser Monte Carlo method Mineralogy Condensed Matter Physics Linear regression X-ray crystallography General Materials Science Quantitative phase analysis Phase analysis Instrumentation Mineral processing
Zdroj:	Powder Diffraction. 29:S102-S106
ISSN:	1945-7413 0885-7156
Popis:	Rapid, on-line measurement of feedstock mineralogy is a highly attractive technology for the mineral processing industry. A Monte Carlo particle transport-based modelling technique has been developed to help design and predict the measurement performance of on-line energy-dispersive X-ray diffraction (EDXRD) analysers. The accuracy of the technique was evaluated by performing quantitative phase analysis on a suite of fifteen synthetic potash ore samples. The diffraction profile of each sample was measured with a laboratory EDXRD analyser and an equivalent profile was simulated in the Monte Carlo package. Linear regression analysis was used to determine the mineral abundances in each sample from both the measured and modelled profiles. Comparison of the results showed that the diffraction profiles and measurement accuracies obtained by simulation agree very well with the measured data.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::aa0360fcf3115dd493e6325eed0b6c77 https://doi.org/10.1017/s088571561400116x Zobrazit plný text záznamu