@peterdrake This reminds me actually of an idea ive played with in my head before. I dont think it has any real possibility in reality. But still cool to think about: Neutron lasers. While lasers arent really possible for bosons in any practical sense that I know of the idea of a focused long distance neutron beam, particularly if its energy level were adjustable to match the material targeting, would be a pretty decent explanation for sci fi beam weapons.
If you havent connected the dots it would cause whatever it is shot at to become increasingly heavy with neutrons and become unstable and if the beam was intense enough would basically just cause whatever it is pointed at to become a nuclear bomb that would explode as the neutrons accumulate int eh material.
@peterdrake
Im beyond my own a bit too to be honest, this isnt my wheel house.
But I know enough to be dangerous, its really just simple logic, neutrons, when captured by atoms make them radioactive, the more they capture the more unstable.
When neutrons are just the right speed atoms will readily absorb them, but if they too fast they will speed past and not be absorbed until they slow down passing through stuff (which may be way overshoot). So by adjusting the speed of the neutrons you change how deep the absorption depth is, focusing more neutrons to be captured in a much shorter distance the slower they move.
combine these ideas and if you had a laser you could adjust the speeds you can concentrate all teh neutrons to be absorbed in a very shallow depth and cause a nuclear explosion at whatever you point it at.
Interesting tidbit: parafin wax is usually used to slow down neutrons to cause this effect, the term is a "neutron moderator"