Confocal XRF-CT system for mining analysis
US9488605B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 6, 2013 |
| Grant date | Nov 8, 2016 |
| Priority date | — |
| Expiry date | Mar 10, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2223/419
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A correlative evaluation of a sample using an x-ray computed tomography (CT) x-ray fluorescence (XRF) system and the method for analyzing a sample using x-ray CT and XRF is disclosed. The CT/XRF system includes an x-ray CT subsystem for acquisition of volume information and a confocal XRF subsystem for acquisition of elemental composition information. The CT/XRF system also includes a controller for managing the acquisitions by the x-ray CT subsystem and confocal XRF subsystem. Combining sub-micrometer spatial resolution 3-D imaging with elemental composition analysis in 3-D with ppm level sensitivity is important to elemental identification of precious metal grains in crushed and ground ores and floatation tailings in the mining industry.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.