If my extremely limited knowledge of the VanAllen belts is correct, they consist of ions spit-out by the Sun and trapped by the Earth's magnetic field. I'd guess these would be electrons and protons, and helium nuclei for the most part.
Does photographic film react to such particles, or is it only sensitive to the electromagnetic variety of radiation?
I'd appreciate some clarification by those folks in the group who actually know about this kind of thing
