National Research Council of Canada

Francis Vanier

Mohamad Sabsabi

Alain Blouin

Jean-Pierre Monchalin

Christian Padioleau

Paul Bouchard

Aïssa Harhira

Josette El Haddad

Daniel Gagnon

Antoine Hamel

Elton Soares De Lima Filho

A system for the online sorting of ore samples based on mineralogy analysis includes a conveyor moving a stream of the ore samples along a conveying path, a LIBS module, a height measuring device, a focus controller and an airflow system. The LIBS module projects a LIBS laser beam along an optical path focused on an analysis spot of dimensions of the order of one or a few mineral components of the ore samples, and collects a returning LIBS light signal. The height measuring device and focus controller collaborate to adjust in real-time the focus of the LIBS laser beam to move the analysis spot perpendicularly to the conveyor according to a height of the ore samples crossing the optical path. The air flow system moves particles away from the optical path. A processing unit performs the mineralogy analysis of the ore sample based on the LIBS light signal.

System for the online sorting of ore samples based on a mineralogy analysis

A method and a system for characterizing an elemental composition and a molecular composition of a material are provided. Laser-based IR spectroscopy measurements and LIBS measurements are performed at a same analysis spot on the material. The IR spectroscopy measurement data can be used to characterize the molecular composition of the material, whereas the LIBS data can be used to characterize the elemental composition of the material. 2D and 3D profiles of a sample of the material may be obtained based on this data.

Characterization of a material using combined laser-based IR spectroscopy and laser-induced breakdown spectroscopy

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Boucherville, Canada

Francis Vanier