Depletion module of openmc

[Shimwell]

For me one benefit of openmc depletion is that it is readily available.

Here is a post that mentions some openmc and fispact differences.

OpenMC and FISPACT II Interface

@srichr221 I’ve been doing OpenMC vs FISPACT comparisons for a paper that is going to be submitted shortly along with @eepeterson. In particular, we’ve looked at predicted material compositions after irradiation/decay as well as the resulting gamma spectra. The short answer is that given equivalent nuclear data, the two codes will produce predictions that are very close to one another. There are a few subtle differences — for example, FISPACT uses an approximate gamma spectrum when no discrete l…