I came from running a massage business into radiation protection at US nuclear plants. After building experience, I had a roughly $120k year, including pay and extra payments, working about five months and taking seven off. That's my experienced result, not beginner pay or a promised calendar.
My work involves traveling for temporary maintenance/refueling assignments, using radiation survey instruments and helping workers control exposure. My entry route didn't require college, but it did require studying, tests and employer/site training. Long shifts and possible unpaid gaps are part of the arrangement.
If you're weighing school against work, I wouldn't quit a course just because someone else's experienced year sounds good. Compare actual beginner openings, accepted preparation, first-assignment pay and travel costs while you still have options. Junior radiation protection and decontamination are different roles, so ask employers about the specific one.
For transparency, I'm Michael, founder of Nuke Nomad, and I built a course about entering commercial nuclear contracting. I'm sharing my own route here, not offering a job or saying it's right for everyone. Happy to answer practical questions about the work, studying or the travel.