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Induced radioactivity

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Induced radioactivity
Powers ted cabin.jpg
In a secluded cabin, Ted harnesses his power by making fireballs in his hands.
Originally held by: Theodore Sprague (deceased)
Absorbed by: Peter Petrelli (lost),
Sylar (lost),
Gabriel Gray (exposed future)
Ability to: Emit radiation
Examples of induced radioactivity

Induced radioactivity is the ability to manipulate the movement of subatomic particles, thus generating and emitting toxic radiation.





Ted Sprague

Ted had limited control over his ability to emit radiation. When agitated, he appeared to emit radiation unintentionally. This radiation was harmful to people in his vicinity. His control did improve with practice, and he appeared to be able to emit radiation on purpose, but he apparently couldn't consistently prevent himself from emitting radiation, especially if angry or injured.

Ted could apparently emit a broad spectrum of electromagnetic radiation, although he had only a limited understanding of the physics involved. He could not choose specifically whether to emit microwaves or gamma rays, but he could choose whether to radiate "hot" energy or "bright" energy. He also appeared to be able to emit neutron radiation, as some objects that have been exposed to him have become radioactive.

At close range, Ted could produce enough radiation to bring a glass of water to a boil or melt a brass door lock in just a few seconds. His uncontrolled emissions set fire to common construction materials from several meters away. He was also capable of emitting an electromagnetic pulse strong enough to disable electronics throughout a large building. An uncontrolled release of radiation can generate a massive explosion similar to that of a nuclear bomb. In an alternate timeline, such an explosion occurred in Kirby Plaza and was powerful enough to destroy most of the skyscrapers in Midtown Manhattan.

Ted appeared to be unharmed by his own radioactive emissions. He caused the deaths of others (reducing people to skeletal remains) during at least two escapes, but never appeared to affect himself. Whether this immunity applies to radiation from other sources is unknown. Additionally, the Company believed that clonazepam could act as a tranquilizer for Ted. However, despite being injected with it, he still blew up the Bennets' home in a massive explosion (Company Man).

Peter Petrelli

When he absorbed this ability from Ted Sprague in The Hard Part after meeting him at Kirby Plaza, he had to intensely concentrate to get this power under control. In How to Stop an Exploding Man, he even passed out attempting to do so. During his fight with Sylar, he lost control and was on the verge of exploding, but thanks to Nathan, he was flown high enough to explode without causing any significant damage to anyone other than Nathan who suffered severe radiation burns.

Since then, he has shown greater control over this ability. After four months of not using it, he used it to safely incinerate Strain 138 without losing control or exploding.

Later Peter lost this ability when Arthur Petrelli stole his powers. (Dying of the Light)


After taking this ability from Ted , Sylar stands on the roof of a building, conjuring up radiation on command (Landslide). Sylar has never been seen emitting radiation unintentionally, and conjured plumes of smoke shortly after acquiring the ability, whereas Ted took an extended period of time to do the same.

Sylar lost this ability to the Shanti Virus.

Future Gabriel

Gabriel becomes enraged after his son is killed by Knox. He channels this ability through his hands when he punches Knox. He begins to lose control of the ability, however, and soon explodes, destroying Costa Verde.

Selected Examples

Memorable Quotes

"Yeah, but there's nothing out of the ordinary here, right? Doesn't this guy look like any other burn victim?"

"He's putting out 1800 curies of radiation."


"Hazmat teams scoured the scene but didn't find any incendiaries. No plutonium, no uranium -- nothing. They did, however, find a fingerprint. Seared to the bone like a brand."

- Matt, Audrey (Nothing to Hide)

"Do you have any idea what would happen if you did that? Because I don't. Maybe I'll explode. Maybe I'll take out this whole hospital. Maybe I'll wipe out this city like an atomic bomb!"

- Ted (to Audrey) (Nothing to Hide)


- Sylar (Landslide)


  • Amid Halebi ("The Engineer" from the unaired pilot and In His Own Image) has this ability.
  • While Ted, Peter, and Sylar have never been harmed by their own radiation emissions, Amid's hands had visible radiation damage, as seen in a scene in the unaired pilot.
  • Ted's medical chart from the old Assignment Tracker indicated that the mitochondria in his cells could cause nuclear fusion between deuterium and tritium atoms. The words "hook up w/ Li" are also scribbled in his chart. The nuclear fusion between deuterium and tritium releases a free neutron, which, in some proposed fusion reactors, could be captured by an atom of lithium to produce more tritium.
  • Occasionally, the eyes of some users of this ability glow orange-red (Godsend, Company Man). This seems to happen when the characters are under extreme emotional duress.
  • Arthur Petrelli stole his son Peter's abilities, saying, "I have [your powers] now." (Dying of the Light). It is presumed that Arthur stole all of Peter's abilities, including induced radioactivity. However, it is possible that Arthur did not steal all of Peter's abilities. Since Arthur never used this ability, there is no conclusive evidence that he actually stole this ability.

Evolved Human Abilities edit

Ability absorptionAbility replicationActivation and deactivationAdoptive muscle memoryAlchemyAlejandro's abilityBody insertionClairsentienceClairvoyanceCloakingCloningDisintegrationDream manipulationElectric manipulationElectronic communicationEmpathic mimicryEmpathyEnhanced hearingEnhanced memoryEnhanced strengthEnhanced synesthesiaFire breathingFlightFreezingGravitational manipulationHealingHealing touchHeat generationIllusionImpenetrable skinInduced radioactivityIntuitive aptitudeInvisibilityLie detectionMagnetismMeltingMemory manipulationMental manipulationMetal mimicryMicrowave emissionMohinder's abilityPersuasionPhasingPlant growthPoison emissionPrecognitionPrecognitive dreamingPuppet masterPyrokinesisRapid cell regenerationSedationSeismic burstShape shiftingShatteringSound manipulationSpace-time manipulationSpontaneous combustionSuper speedSuperchargingTechnopathyTelekinesisTelepathyTerrakinesisUnderwater breathingWeather control

Evolutions Abilities

Accelerated probabilityAcidic bloodAge transferalAnimal controlBelief inductionCarbon isolation and formationConstrictionDanger sensingDavid's abilityDimension hoppingDimensional storageEmpathic manipulationEnhanced teleportingExtraskeletal manipulationHealth optimizingInflammationLight absorptionNerve manipulationNon-biological duplicationPhoenix mimicryPrimal rageShiftingSize alterationTeleportationTemporal rewindUmbrakinesisWater generationWater mimicry

Graphic Novel Abilities

Ability augmentationAcid secretionAge shiftingAppearance alterationAura absorptionBliss and horrorBone spike protrusionChlorine gas exudationCrumplingDehydrationDisintegration touchElasticityElectrical absorptionEnergy absorption, transference, and redirectionForcefieldsFuture terrorist's abilityGold mimicryGranulationGreen energy blastImprintingLaser emissionLevitationLuminescenceLung adaptationMass manipulationMediumshipNerve gas emissionNeurocognitive deficitOil secretionOmnilingualismPlant manipulationSound absorptionSpider mimicryTelescopic visionWall crawling

See Also: Ability developmentAbility extensionAbility heredityAbility immunityAbility lossAbility theftBrain examinationBrain penetrationExamples of simultaneous ability useEye alterationList of abilitiesList of abilities with multiple usersParadoxProphecyRiftExamples of induced radioactivity