I'll show you the RADIATION lab.
The Big Bang Theory Season 1, Episode 12
Switched over to high-energy
RADIATION research, had a mishap.
The Big Bang Theory Season 1, Episode 5
Perhaps more if that RADIATION
gave you a super brain.
The Big Bang Theory Season 11, Episode 17
LEONARD: Oh, my God,
there's a breach in the RADIATION unit.
The Big Bang Theory Season 1, Episode 11
Hey, do you wanna slip over
to the RADIATION lab...
The Big Bang Theory Season 1, Episode 5