test3

[Andreas Ntaflos]

including those with changed energies, were scattered at wide angles by simple 
collisions with atoms. The new STEM includes magnetic lenses that collect 
emerging electrons over a wider angle. 

Previously, Silcox said, about 8 percent of the emerging electrons were 
collected, but the new detector collects about 80 percent, allowing more 
accurate readings of the small changes in energy levels that reveal bonding 
between atoms
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