Electron Microprobe Laboratory
University of Colorado, Boulder
(303) 735 2413
SEM scanning electron microscope
EDS energy dispersive spectrometer
EMPA electron microprobe; wavelength dispersive spectrometers
An electron microprobe is an electron microscope designed for the non-destructive x-ray microanalysis and imaging of solid materials. It is capable of high spatial resolution (1 µm beam size) and relatively high analytical sensitivity. The analytical facilities' JEOL JXA-8600 can acquire digital secondary-electron and backscattered-electron images as well as elemental x-ray maps. It is equipped with 4 wavelength-dispersive spectrometers and an energy-dispersive spectrometer. Most of the periodic table can in principle be analyzed (Be through U), subject to several important considerations.
Conditions for Use:
- Submitted samples will be analyzed on a contract basis (i.e. lab personnel will do the work)
- Visitors are invited to work in the lab to work with lab personnel
- Visitors are invited to work in the lab to design and do the work yourself
Contact lab manager for current rates. Short training (couple hours) can be provided on site if necessary; knowledge of x-ray theory (WDS, EDS, electron microprobe in general) prior to the use of the instrument is desirable.
Priorities given to funded research; lab visitor, class demonstration and student project are all welcome!
Sample must be mounted either on round mount (ca. 1 inch) or on a normal thin section (46x27 mm). Samples must be well polished; final polishing using 0.05 µm alumina powder recommended. Sample can be coated (C-coating) on site.
Standard Collections/Lab Blanks:
Complete standard collection including pure elements (metal), numerous silicates and REE-phosphate. Contact the manager for details.
- Class demonstrations are available for undergraduates
- Undergraduate student research projects are invited
- Graduate student research projects are invited