Hi Cameron, 

Larch implements and exposes the FLUO algorithm for correcting overabsorption in XANES and mu(E).  But it doesn't have the EXAFS-facing over-absorption corrections (as list at https://bruceravel.github.io/demeter/documents/Athena/process/sa.html#algorithm-references)

I have not looked at this in detail, but I believe that the Booth and "Atoms" (Ravel?) algorithms were reasonably robust and easy to implement (like, tens of lines of code, although I think maybe Booth had a "thin film limit" that was a bit trickier). 

These should not be too hard to add.  But maybe this is a good chance for someone to revisit all of those algorithms and help decide which to implement.   I am fine with adding multiple choices, but too many choices and no guidance on which to use might not be the best solution ;).

I believe that all the algorithms assume a single pair of angles (in and out), whereas the Trevorah work that Chris referenced allows for different angles to each of a multi-element detector.  I think that would be fine to have - lots of EXAFS is measured with multi-element detectors. I don't know very many people (including me) who have good measurements of those angles for each detector element,  but maybe that should be encouraged ;).