Depending on what you mean by "radiation effects," there are ways. I
typically identify Frenkel defects in BCC materials through
post-processing, for example. I have written LAMMPS compute and dump
classes that are capable of doing this right within LAMMPS, but I'm still
testing them and they are very much alpha releases at this point. For all I know, the classes I wrote may only work on BCC materials; possibly the
techniques it uses only make sense for BCC (or at least cubic) materials,
though though they're intended to work on any lattice LAMMPS can generate,
rotated or otherwise.
If there is strong interest in this, I can think about moving the
development process forward more quickly, but for now this has very much
been a side project for me.
One reason I'm hesitant to throw this type of thing out there is that once
it's implemented, there are always going to be people who use it without
any understanding whatsoever of how it works (and more importantly what
can go wrong).
Karl D. Hammond
University of Tennessee, Knoxville