Perhaps that's one of the advantages of using a really big ship; you can put more shielding / water tanks between the sun and the passengers. If it's a major p

Perhaps that's one of the advantages of using a really big ship; you can put more shielding / water tanks between the sun and the passengers. If it's a major problem, they might just orient the ship in a direction that gives the best radiation protection to the passengers and just leave it like that for most of the trip.