Spectral imaging data sets typically contain large amounts of complex information. Advanced element mapping techniques tell a compelling analytical story, but we’ve found that the analyst often needs the EDS equivalent of a backscatter electron image.

The COMPASS Phase mapping software brings the detail of EDS to the imagery of a backscatter detector in order to create the ultimate chemical map for the electron microscope.

Traditional EDS mapping techniques are limited by their ability to simultaneously handle large data sets and their complexity. The resulting methods consume computation resources, require long data acquisitions, and have the potential to misidentify or to overlook minor phases.

COMPASS Principal Component Analysis (PCA) applied to Spectral Imaging data sets represents a paradigm shift in data processing. COMPASS software reduces the complexity of the data to the handful of dominant components that describe the data.

These components are then used to identify and to describe the chemical phases within the acquired data set.

COMPASS PCA

• Requires no assumptions regarding sample chemistry
• Works well with low volume or sparse data sets
• Deals effectively with noisy data
• Eliminates the need for user input and, in turn, user bias

COMPASS phase maps are typically generated after a single, 30-second frame.


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