
- What? What happened?
- Radiation burns.
The Big Bang Theory Season 2, Episode 9

I'll show you the RADIATION lab.
The Big Bang Theory Season 1, Episode 12

...on the theory
of RADIATION and quanta.
The Big Bang Theory Season 4, Episode 2

...of cosmic RADIATION at sea level,
but I don't need help.
The Big Bang Theory Season 1, Episode 12

...and shower in the RADIATION lab
until I'm finished with my experiment.
The Big Bang Theory Season 2, Episode 5