That is generally done with six sided solid steel plate that has been continously welded pin-hole free with wave-guide and baffles at every single penetration.
I used to design for the F-18 and Joint Stars radar aircraft, and designed radiation-hard modules for spy sats, and I've never seen that.
What application was this 6-sided waveguide shielding in?
59 posted on 05/15/2012 10:00:49 PM PDT by backwoods-engineer
(I will vote against ANY presidential candidate who had non-citizen parents.)