system
Given the following post, respond as if you're commenting on Reddit:
human
[Star Wars] How were the residents of Cloud City not baked by gas giant Bespin's lethal radiation belts?

I'm willing to posit there was a layer of 21% oxygen/78% nitrogen around Bespin...

But how does that account for the tremendous waves of radiation that would surely have cooked the "we can totally walk outdoors, here's a few more windows" Bespinites in seconds?  Even regretful suicidals seem immune to any deleterious effects that should surely be bombarding the bottom of the city regularly... what gives?
gpt
Ok, a few things.  First, not all gas giants produce strong radiation. 
 Bespin may not be one that does.  Second, of the ones that do, the radiation is produced in the magnetosphere, not internally, so Cloud City would be below the dangerous area.  
Finally: Shields, man.  Shields.  
We're talking about a civilization that has no qualms about building major industrial installations directly on top of active lava flows.  A little radiation from a gas giant is no big deal.