Its not that big a deal. A X3 solar flare is pretty small and not at all uncommon. Last year we had one that was an X27, luckily it was not facing the earth at the time. If you are on earth and protected by the atmosphere, you are safe. Riding in space you get irradiated a little.
"Riding in space you get irradiated a little."
What kind of radiation is it? X-ray?
We're supposed to be at a solar minimum now. It is a big deal.