I think that the SIMS on the foil will be the big tell about what maybe going on.

With Adamenko, the isotopic ratios were not natural - in addition to the creation of non-periodic table elements.

Since it would appear that basically the same process is going on here in the foil producing process with similar output products (albeit we do not have the specifics from Adamenko for the combinations in this embodiment) - it could be that we see some strange data out of SIMS