This one's pretty simple. I'm looking at trying to simulate the backscattered radiation coming off of a S-type asteroid shape model due to impinging GCRs and solar particles. Ideally my simulation would include dynamic factors like the relative motion and attitude of a spacecraft in orbit around the asteroid (like the Rosetta spacecraft for instance), the orientation of the asteroid with respect to solar influx, and internal density non-homogeneities within the asteroid model to look at their effect on surface neutron emissions etc.
I know this is a decidedly complex simulation, and I'm curious regarding your opinions on whether FLUKA (specifically using Flair GUI) is up to it? I think GEANT4 or GRAS might be able to do so, but not so sure about FLUKA/Flair.
Other information: I've got access to a high power computing array in the lab (so I'm not overly worried about crashing the program with an enormous task), and have the latest versions of both FLUKA and GEANT4.
Thanks! -D. Hodge