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Atomic-scale imaging in 3-D

Three-dimensional atomic-resolution tomographic imaging requires analyzing a microscopic sample viewed from several directions, followed by a computerized reconstruction of the sample’s 3-D atomic structure. Such an exacting process has eluded researchers for decades, but is now possible with the Transmission Electron Aberration-corrected Microscope (TEAM) Stage. It holds and positions samples inside electron microscopes with unprecedented stability, position-control accuracy, and range of motion.

 

The technology was developed by Thomas Duden, Nord Andresen, Rich Weidenbach, and Andreas Schmid of Berkeley Lab’s Engineering and Materials Sciences Divisions. Scientists from Attocube Systems, FEI Company, and the University of Illinois at Urbana-Champaign also contributed.

 

The TEAM Stage will make one of the world’s most powerful electron microscopes even better, and enable previously impossible experiments. Trial-and-error detection of defects in a thin-film nanocrystal solar cell material may be minimized; and the fabrication of new biomaterials for longer-lasting artificial bone implants may be facilitated.

 

credit: Lawrence Berkeley Nat'l Lab - Roy Kaltschmidt, photographer

 

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Uploaded on August 21, 2009
Taken on August 20, 2009