Plasma radiation is a form of radiation associated with energetic plasma, such as inside warp cores.

In one of The Doctor's daydreams in 2376, the warp containment field of the USS Voyager suddenly failed, requiring that he save the day as he was the only one who could withstand the plasma radiation inside the core. (VOY: "Tinker Tenor Doctor Spy")

In 2377, an accident aboard a Nygean prison ship caused plasma radiation from a ruptured plasma conduit to flood the interior, necessitating that those aboard be evacuated to Voyager. (VOY: "Repentance")