About the project

Our vision is to be able to analyse element concentrations centimetres inside ore samples for heavier elements, such as precious and rare earth metals, and have improved spatial resolution, compared to present non-imaging X-ray spectroscopy.

The main objective of the proposed research is to improve material analysis efficiency, both in terms of material recognition accuracy and speed of detection. XRF spectroscopy is widely used in production plants and exploration of mining companies, both as handheld instruments and in conveyor belt analysis subsystems.

However, current industrial XRF systems have poor spatial resolution: they typically are unable to localize particles with dimensions below 100mm. Our goal is to improve the selectivity at least with one order of magnitude, down to about 10mm spatial resolution.

Another shortage of current industrial XRF systems is the fact that they only analyse the surface of the sample, ignoring most of the volume. This gives an erroneous estimate of the element concentration, especially for elements with uneven distribution, such as precious metals. Our goal is to read XRF-signals from the whole sample volume by using higher energy.