Bearing in mind the recent finding of high energy Bremsstrahlung like spectra by MFMP and references to 100 keV stimulation elsewhere in the literature. I wonder if Collision cascades of ions can become important in these systems. They usually become relevant with ion collisions of a few 10s keV or more and will generally lead regions with defects and vacancies in the material. When they are caused by high energy events (MeV) they can generate longer lived heat spikes that are cooled and damped by electron phonon coupling (EPC). EPC is quite high in certain metals in particular Iron, Nickel, palladium and Platinum due to the high number of electrons at the fermi level in these metals. https://en.m.wikipedia.org/wiki/Collision_cascade
In the Wiki article it implies the coupling between Collision Cascades and EPC is not well understood. I found a paper though that seems to imply the effect of cooling due to EPC is less than expected: http://www.acclab.helsinki.fi/~knordlun/pub/Nor98.pdf This paper does not look a LENR but more at the effect from a materials point of view but I thought it interesting though for LENR too. On one hand the defects caused by Collision Cascades might benefit LENR during material preparation, on the other hand EPC may play a role in the active phase, converting collision cascades from ion interactions into beneficial phonons that may enable proton absorption or cooling heat spikes Just some thoughts. Has it come up before here?

