Improving sample analysis using combined energy dispersive and cathodoluminescence spectroscopies

Microanalysis with the scanning electron microscope (SEM) is a key technique to understanding the geological history of rocks, minerals, and gems. Energy-dispersive x-ray spectroscopy (EDS) and cathodoluminescence (CL) spectroscopy are commonly used to determine the elemental composition and trace element chemistry, enabling the geological history to be reconstructed. Despite the complementary nature of EDS and CL analysis, these characterization techniques are rarely performed simultaneously due to incompatibilities. However, recent developments have overcome this hurdle. In this webinar, Timmons Erickson, Ph.D., Research Scientist, Jacobs Technology Inc., reviewed how the simultaneous capture of EDS and CL spectroscopic data proved invaluable in analyzing a chondritic meteorite collected in Antarctica – Miller Range 090010, which contains some of the earliest formed solids in the solar system.