I have heard rumours of processing the film in a glass bottomed tray so as to not scratch the emulsion on the back side.
The other one was post processing trick
Stick a wetted piece of flim side to a clean smooth surface, and roll it down to get rid of excess liquid
Then with a wetted cottom swab and diluted ammonia, carefully wipe the emulsion off of the front side.
This allegedly makes for a sharper image to work with, being only on one side with the image after this step.
I have a box of 100 Kodak 10x12 xray film bought for $1 at an auction, that I have played with once.
I have not had the time to get back to fiddle with it more yet.
It is so slow I was not worried with it fogging if I don't get back to it for a few more years.