The EDAX Pegasus system is an advanced materials characterization solution that offers both elemental composition and crystallographic orientation data in a single, user-friendly package.
As a fully integrated system, Pegasus simultaneously gathers energy dispersive X-ray spectroscopy (EDS) and electron backscatter diffraction (EBSD) data, revealing the structure-function relationship and providing a comprehensive understanding of the samples.
Benefits
- Provides accurate compositional and crystallographic data collection more than 3.5 times faster than other systems.
- Expands analytical capabilities to cover a wide range of materials, including complex samples.
- Delivers results in minutes rather than hours or days.
- Produces superior compositional analysis at EBSD geometries.
- Optimizes analysis with a single EDS–EBSD interface using EDAX APEX™ software.
As a standalone technique, EBSD is highly effective at distinguishing phases based on crystallographic differences. However, combining EDS chemical insights with EBSD crystallographic data creates a powerful analytical approach, allowing users to separate phases with similar crystallography while reducing ambiguity and errors in multi-phase samples.

Figure 1. Pegasus delivers dependable answers with one scan of the electron beam. The graph shows EDS input counts by detector area at conditions suitable for high-speed EBSD analysis using the Velocity EBSD detectors on a copper sample with 20 kV accelerating voltage and 20 nA beam current. Image Credit: Gatan, Inc.
To achieve this advanced synergy, Pegasus integrates the EDAX Velocity™ and Clarity™ EBSD systems for crystallographic data collection. Depending on your research needs, Velocity cameras offer high-speed data acquisition across a broad range of sample types, while Clarity direct detectors excel in imaging beam-sensitive materials, delivering unmatched performance down to 3 kV.
Pegasus also maximizes efficiency with the EDAX Octane Elect and Octane Elite EDS detectors, enabling data collection 3.5 times faster than other systems, even at EBSD geometries.
For enhanced sensitivity across both light and heavy elements, the Octane Elite Ultra supports accelerating voltages up to 30 kV, eliminating the need for a secondary EDS detector. Whether used as a standalone or dual EBSD-EDS system, Pegasus meets the most demanding analytical applications.
The intuitive APEX software seamlessly connects powerful EDS-EBSD routines, ensuring high-quality data collection, reporting, and analysis with speed and ease. This integration of EDAX hardware and software enhances user productivity, providing the most efficient solution for simultaneous EDS-EBSD microstructural characterization.

Figure 2. Pegasus produces supreme compositional analysis at EBSD geometries, correcting for absorption effects due to tilt and yielding EDS results comparable to conventional analysis at typical EBSD conditions. The chart to the right shows that at the typical 70° sample tilt used for EBSD analysis, the at% accuracy is at or near 100%. The data above was recorded with 20 kV accelerating voltage, 2.5 nA beam current, and 100k cps EDS count rate. Image Credit: Gatan, Inc.