So you are in a high orbit, or Lunar orbit, or at an EML point, and a solar proton event is on its way. Does the Earth's magnetic field make it difficult to predict the direction of impact on your spacecraft? Is the magnetic field of the Moon a significant factor?
I believe I saw somewhere a diagram showing magnetic lines causing a solar storm to hit the Moon on its night side, but I can't find it now. Can that happen?
I ask due to wondering if placing shielding against SPEs on only one part of a spacecraft, and then keeping that turned into the direction of the storm could work. I had also modeled a structure for a lunar base mock-up partly on the idea that if you are shaded from sunlight behind a barrier of sufficient thickness, then solar ionizing radiation is not a concern. But could the influence of magnetism cause dangerous ions to hit from other directions (in particular from above)?
Relavant NASA new article: Solar Storms can Change Direction, and here is a very pretty video that is somewhat relevant, showing the magnetic field lines of Earth warping under the influence of a solar storm: