Assume a human in direct vicinity (think 1-50 m [if you need more space for your intended device]) to the explosion center of a nuclear fusion bomb. Is survival via technology thinkable?
The TNT equivalent of this explosion is 6000 Megatons * (1 + your intended distance of human to explosion center squared)
[EDIT: Does the explosion force matter here? I just wanted to imply a proper h-bomb. If it is important to your answer, you may reduce the force or just assume a tsar bomba]
Big Toolbox: This is not about today's technology but about if survival (and intact body) are at all possible from a physics standpoint. So even if you would need the ressources of a whole galaxy to achieve it, and ultra-advanced (but still extrapolated and non-magical) technology, the answer would still be valid.
I know we can not know exactly what we still don't know. Please do your best to extrapolate.
The lucky human entity has no special adaptions unless those are part of the answer. [EDIT: Everything within the confines above is ok, thanks for the hint]
If somebody wants to redirect me to general physics exchange, please do not. I have very carefully considered that this stack exchange is the place to ask.