
Real-space mapping of deuterated polymers using dark-field EELS
March 1, 2026
A powerful method of obtaining detailed analytic data from a sample on an electron microscope equipped with scanning mode.

The STEMPack™ 3 system utilizes the next-generation digital image acquisition performance of the DigiScan™ 3 for advanced spectrum imaging (SI) applications. Using the high-performance and flexible scanning of the DigiScan 3, STEMPack 3 provides the link between electron energy loss spectroscopy (EELS) and probe scanning to allow the collection of spectrum image data sets. The STEMPack 3 system provides the backbone behind all spectrum imaging applications from Gatan, creating a unified user experience for all modalities (e.g., EELS, EDS, diffraction, CL).

Provides a systematic and unbiased sampling of specimen properties
Maximizes analytical specimen information for a given dose
Detailed EELS data is amenable to advanced chemical mapping techniques based on fine structure analysis
Delivers rich, unbiased data ideally suited to powerful techniques like principal component and multivariate statistical analysis
Enables simultaneous multiple signal acquisition* and unique contrast modes
* May require optional components
For more information pertaining to EELS techniques, step-by-step instructions on analytical experiments, and access to downloadable spectra, please visit EELS.info, an educational site that is dedicated to supporting the EELS community.
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