The EDAX Pattern Region of Interest Analysis System (PRIASTM) offers a powerful approach to imaging and analyzing a material’s microstructural features. This system leverages electron backscatter diffraction (EBSD) detectors not only to capture and index EBSD patterns but also as an array of positional electron detectors for sample imaging.
By simultaneously capturing data from up to 25 detector regions of interest (ROIs), PRIAS generates multiple images in real-time, revealing orientation, atomic number, and topographic contrasts. Advanced arithmetic processing further enhances analysis, enabling precise visualization of microstructural details while isolating, enhancing, or suppressing specific contrast mechanisms as needed
Optimal EBSD pattern collection requires a highly tilted sample and a well-polished surface, which can make traditional SEM imaging difficult. Standard secondary electron (SE) and backscattered electron (BSE) detectors are not ideally positioned for imaging at high tilt angles.
While a forward scatter detector (FSD) system can improve imaging, fully capturing the scattered electron information often requires multiple detectors or repeated exposures from a single variably positioned detector. These detectors must also be placed outside the high-signal area around the perimeter of the EBSD phosphor screen.
PRIAS eliminates the need for additional hardware or pre-positioning of detectors by simultaneously imaging all detector regions, ensuring optimal contrast across a full set of images in a single acquisition.
Features and Benefits
Synchronous Image Collection from All ROI Detectors
Choose the best image for sample visualization quickly and easily.
PRIAS Live Mode
- Dedicated mode for fast microstructural imaging
- Uses 25 fixed ROI detectors for enhanced data capture
PRIAS Collection Mode
- Automatically collects PRIAS imaging data alongside EDAX APEXTM EBSD mapping data
- No user input is required for data acquisition
- Preset ROIs for imaging contrast based on orientation, topography, and atomic number
- Direct correlation with orientation, chemical, and phase data
PRIAS Analysis Mode
- Generates images from saved EBSD patterns
- Allows fully flexible positioning of ROI detectors
- Direct correlation with orientation, chemical, and phase data
Arithmetic Image Processing
- Multiple images are processed at once to extract the most information possible.
RGB Image Coloring
- Assigns red, green, or blue channels to any ROI image
- Creates rapid microstructural images without requiring full Orientation Imaging Microscopy (OIM) imaging
Automated Detector and Imaging Setup
- Camera optimization for fast PRIAS Live imaging
- Eliminates the need for manual contrast and brightness adjustments, saving time and improving efficiency