Hyperonic radiation is a type of radiation that is lethal to most humanoids. This type of radiation also renders transporters inoperable and randomizes phaser fire (although Lt. Cmdr. Data, a Soong-type android, adapted a phaser using his own circuitry to be able to fire in such an environment). Previous Federation research suggested that Humans could adapt to hyperonic radiation, perhaps through virotherapy. (TNG: "The Ensigns of Command" ) In 2369, Doctor Julian Bashir bombarded a sample of the aphasia virus, grown on tetracitrus gel, with hyperonic radiation at 430 millirads. (DS9: "Babel")