I’ll never convince you in the existence of hell with logic or reason. This type of wisdom is silliness. You will need to ask God if it is so and to lay it upon your heart. I am confident He will do so. If hell really exists, don't you think it's folly not explore all avenues to find out for sure?
I believe that radiation and it’s effects can be measured and viewed repeatedly, by different people, with the same results.
If there is no logic or reason available, then what makes anyones’s belief, any more or less valid than anothers? I believe God speaks to each individual as He sees fit.