The West Wing of 01/22/06 featured a nuclear reactor accident and engineers working inside the building with a time limit. Jimmy Carter took part in such an activity in the Navy.
During such a task, for what period of time does one experience the maximum exposure? Would an engineer be limited to an office job afterwards?
This isn’t exactly what you’re looking for, but it will give you a good start and does address some time limits/allowable lifetime exposure.
Hope it helps.
Exposure to Radiation In An Emergency - from Lawrence Livermore National Laboratory.
Thanks.