I was wondering to what extent dark craters at the lunar pole would be sheilded against solar flares. I've heard some people mention that a solar flare is not directional- but should be considered more like a swarm of bees.
First, I wonder if this is actually right- how was this tested is first place. I guess one way would be to be on the opposite side of the Moon (in orbit)during a solar flare event. And if it was tested there should be some numbers on how much the flare effect was reduced by having the Moon or some large body between it.
If being in a dark crater blocks a significant amount of the solar flare, then this would be significant as far as manned lunar exploration. Or if being in a crater didn't block much of the solar flare, I wonder if there is anyway this could be used in measuring the composition of moon. Or how solar flares would affect the existance of water deposits in the craters.

Note: one problem using a solar flare event to measure anything on the Moon is that your instruments would also be in the event and the "noise" of the event itself- but perhaps there are ways around this.