Computer code makes images crystal clear

September 1991
New Scientist;9/21/91, Vol. 131 Issue 1787, p25
The article presents images showing features as small as 3 Angstroms across which can be obtained with high resolution transmission electron microscopes (HRTEM). Such images are reduced to guessing the structure of their samples, simulating the image that a HRTEM would produce of them, then comparing this with the actual image. Nick Austin, who wrote the computer code, says interpreting the images was difficult partly because electron microscopes do not focus very well.


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