Ion radiation

Ion radiation is a form of radiation associated with ions.

The detonation of a Federation photon torpedo produced ion radiation, which could be hazardous to unshielded starships at close ranges. When the USS Enterprise (NCC-1701-D) disrupted a soliton wave using photon torpedoes in 2368, parts of the ship were flooded with ion radiation due to gaps in its damaged shield grid. 

Ion radiation was one of the sources of interference accounted for by the USS Voyager crew during their hunt for the missile Dreadnought in 2372.