Isotope contamination is primarily a result of processing
The methods for turning ore to weapons grade materials differ from site to site. The differences lead to fairly reliable “fingerprints “ with each refinement. The isotope percentages from site to site are pretty well know, so even if the original ore is from America, you should be able to determine a point of origin for the refinement.
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In response to this post by EDGEMAN)
Posted: 03/23/2022 at 1:01PM