It's just my assumption would be to not to get near it unless I knew for sure. The spacecraft would obviously be bombarded with huge amounts of radiation in space. Astronauts inside these vessels experience rather high doses of radiation. The question revolves around the materials used and whether they become irradiated or not and stay as such or not. I would assume that they would select materials that do not continuing radiating once back on Earth at a concerning level, but I don't know enough about materials to know that and this appears to be an external piece.