t-EBSD Detector for Crystallography and Pseudo-Symmetry Analysis

Bruker’s latest e^–Flash^HD detector has a CCD resolution of almost 2 MP, which is equivalent to 1600 x 1200 pixels, and modern camera optics to minimize distortions. The e^–Flash^HD detector offers high definition Kikuchi patterns, which exhibit the finest details.

The datasets that contain e^–Flash^HD high quality patterns are also suitable for cross correlation analysis using third party software such as CrossCourt4.

The e^–Flash^HD has an improved cooling system compared to its predecessor e^–Flash ^HR. The enhanced cooling system helps to produce superior quality Kikuchi patterns.

The e^–Flash^HD detector uses a high quality and high efficient phosphor screen for acquiring very detailed Kikuchi patterns. The combination of a small grain size phosphor material with a high pixel resolution CCD chip assures a final pixel size. The final pixel size in the patterns is 20 µm and this makes the extremely small shifts in patterns visible.

The e^–Flash^HD’s high precision guiding system allows screen position precision which is over 10 µm. The e^–Flash^HD is presented with ARGUS™ forescattered/backscattered electron imaging system, which helps to further increase the flexibility of the detector.

The e^–Flash^HD uses the OPTIMUS™ TKD detector head to analyze electron transparent samples in the finest sample-detector geometry possible.

Key Features

The main features of the e^–Flash^HD detector are as follows:

Produce Kikuchi patterns with superior signal/noise ratio

Offers valuable extra information for efficient and meaningful microstructure characterization

Enhanced cooling system reduces the CCD’s dark current by a factor of four

Can be retrofitted with distinct OPTIMUS™ TKD detector head

Applications

The main applications of the e^–Flash^HD detector are as follows:

Ultra-accurate phase identification

Ideal for HR-EBSD/residual strain analysis

Analysis of pseudo-symmetry in crystal structures

Ideal solution to run the pattern center calibration with techniques that are based on screen movement