Wow, Val, I wish I knew the answer for you. I don't have personal experience with this, but I would say if it were me, I'd go for the radiation so I could have that much more chance of survival.
"Somewhere, someone isn't impressed by your looks. Not all men jump through the hoops of your fire. You're unbelievably boring to more people than you'll ever know." --Henry Rollins
"If someone tells you something is easy and they can't explain how to do it, it's not easy." --Steve Shaw