Energy dispersive X-ray imaging can be used in several research fields and industrial applications. Elemental mapping through energy dispersive X-ray imaging technique has become a promising method to obtain positional distribution of specific elements in a non-destructive way. To obtain the elemental distribution of a sample it is necessary to use instruments capable of providing a precise positioning together with a good energy resolution. Polycapillary beams together with silicon drift chamber detectors are used in several commercial systems and are considered state-of-the-art spectrometers, however they are usually very costly. A new concept of large energy dispersive X-ray imaging systems based on gaseous radiation detectors emerged in the last years enabling a promising 2D elemental detection at a very reduced price. The main goal of this work is to analyze a contemporary Indian miniature with both X-ray fluorescence imaging systems, the one based on a gaseous detector 2D-THCOBRA and the state-of-the-art spectrometer M4 Tornado, from Bruker. The performance of both systems is compared and evaluated in the context of the sample's analysis. (C) 2016 Elsevier B.V. All rights reserved.
- Energy-dispersive X-ray fluorescence imaging
- Gaseous detectors
- M4 Tornado
- Elemental mapping
Silva, A. L. M., Cirino, S., Carvalho, ML., Manso, M., Pessanha, S., Azevedo, C. D. R., ... Veloso, J. F. C. A. (2017). Elemental mapping in a contemporary miniature by full-field X-ray fluorescence imaging with gaseous detector vs. scanning X-ray fluorescence imaging with polycapillary optics. Spectrochimica Acta Part B-Atomic Spectroscopy, 129, 1-7. https://doi.org/10.1016/j.sab.2016.12.006