Dear Crystallographers,

Has there been a consensus as to what is meant by “atomic resolution?” Seems like the term is taken by various practitioners to mean different things.

A related question: at what resolution are atoms “visible” using only the data? I have an empirical feeling that this would be around 1.5 Ang Bragg spacings, but on the other hand, one can contour up most maps and see individual atom peaks. I would be interested to hear a more rigorous way to think about this.

All the best,

Jacob Keller

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Jacob Pearson Keller

Research Scientist / Looger Lab

HHMI Janelia Research Campus

19700 Helix Dr, Ashburn, VA 20147

(571)209-4000 x3159

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