It is in fact how Deinococcus radiodurans works:

    Deinococcus radiodurans has a unique quality in which it can repair both single- and double-stranded DNA. When damage is apparent to the cell, it brings the damaged DNA into a compartmental ring-like structure where the DNA is repaired, and then is able to fuse the nucleoids from the outside of the compartment with the damaged DNA.

Let the man dream (and possibly write interesting scifi about it).

So if, say, you were completely irradiated - every atom of your being - and fully repaired, would you still be 'you'?

/Is that a transporter energizing I hear?