The instrument is, in effect, an analytical work station since it combines secondary imaging capabilities with backscatter electron imaging useful for discriminating elements by atomic number contrast. These imaging modes combined with an energy dispersive X-ray analyzer allow for positive identification of elements by spectral analysis, mapping of element distribution, combined with qualitative and quantitative analysis of element concentration. A new addition is the Alto 2500 Cryostage and cryoprep chamber from Gatan. With the Cryostage, the sample can be rapidly frozen in LN slush and transferred to the prep chamber. It is kept frozen and can be fractured, sublimated and coated in the chamber, then moved into the SEM and kept frozen while viewed.
Several mounts are available to accomodate a variety of specimens.