Hybrid-angle-energy dispersive low-power X-ray diffraction and fluorescence portable system for non-invasive study: Peak identification and object positioning corrections

摘要

EDXRD apparatus can be improved by multiple angle scanning implementing a hybrid system that take advantage of shorter acquisition time and higher energy penetration in EDXRD, and of higher inter-planar distance resolution in ADXRD. Methods for hybrid data processing at low energy range using reflection detection mode are presented. Additional to the ED XRD-XRF spectrum directly acquired, a specially developed software extracts ADXRD from angle scanning data and builds 3D/2D plots showing the Iso-d curves, builds a hybrid diffractogram and identifies crystalline phase by dealing with corrections of line shifts due to different positioning of the irradiated spot on the cultural heritage object. (C) 2015 Elsevier B.V. All rights reserved.