The Repulsor Tech node, as called in Earth-616, is a type of fusion power which derived from the Repulsor Technology of the Iron Man suit created by Tony Stark. It can be used as a source for clean energy as well as a powerful bomb, further modifications made along Rand Industries discarding the second possible application.
The arc reactor also generates an electromagnetic field.
During an attack made by suicide bombers created by Ezekiel Stane, Pepper Potts was gravely injured in a similar way Tony was in Afghanistan. Tony implemented this new technology into her, allowing her not only to survive the shrapnel near her heart, enabling surgery, but to heal quickly and control the reactor at will to create specific magnetic fields for protection or to levitate, and beams of energy.
After the Skrull Invasion, Norman Osborn became the director of S.H.I.E.L.D.'s successor H.A.M.M.E.R., dismissing Stark, and got access to the Superhuman Registration Act's database containing the secret identities of almost every hero. Tony managed to erase the one property of S.H.I.E.L.D. before Osborn managed to open it, and in order to do the same with the backup in the Extremis in his body, he had to reset it, thus his entire body.
In the end, Tony Stark fell into a coma-like state. Pepper's arc reactor was used to run Stark's body once more by using it to run the basic machine codes to keep Stark's Extremis-modified body working.
After returning to life, Tony used the arc reactor to power his new Bleeding Edge armor as well as similar devices were used to create new technologies for his new organization Stark Resilient such as a Repulsor Car, and empower the newly reconstructed Asgardia.
Since he first used it, Tony used this armor to empower any newly-created armors. Another new arc reactor was implanted to Virginia Potts.
Marvel Cinematic Universe (Earth-199999)
In this universe, the Arc Reactor was a device initially designed by Howard Stark, and later adapted by his son, Tony. A massive arc reactor provided power for the sprawling complex of Stark Industries until its destruction, and now the Stark Tower. This design was miniaturized by Tony to power a life-saving electromagnet in his chest.
Further upgrades to the design allowed Stark to employ successive generations of arc reactors, most notably in powering his crowning achievement, the Iron Man armor. Early generations of Iron Man armor were powered by much the same arc reactor technology as had powered Stark's electromagnet device, however poisoning from the palladium within the reactors were having an adverse effect on his health. This forced a radical redesign whereby Tony created a new element previously only theorized by his father years earlier. This new arc reactor had a massive power output advantage over previous arc reactors and was the first to power the formidable Iron Man MK VI armor.
Since their inception, mini arc reactors have powered successive generations of the Iron Man armor as a force for good. They have also fallen into the hands of far less savory individuals and used to power further battle suits for criminal operations, and a fleet of robotic battle drones.
Stark had the arc reactor disposed of into the ocean after receiving surgery to remove a shrapnel from his chest.
The Avengers: Earth's Mightiest Heroes (Earth-8096)
Tony uses a miniaturized version of this device in his chest, which apparently helps him to stay alive as well as it powers the Iron Man Armor.
- The Arc Reactor from the Mainstream Universe seems to be the only one which gives its user super-human abilities.
- In the novelization of Iron Man 2 the metal Tony creates to replace palladium in the arc reactor of Earth-199999 is called Vibranium.
- Prior to the Arc reactor, Stark had to recharge his armor (and heart) using various external power sources. A standard trope in the comics was his armor running out of power and having to recharge often using solar converters. Despite this the Earth-616 humanity still seems driven by fossil fuels despite both technologies.
- In Earth-199999, according to Starks calculations, the reactor output is 3 gigajoules per second. The chemical energy equivalent of 30 barrels of oil a minute.
- No trivia.
- 87 Appearances of Arc Reactor
- 4 Images featuring Arc Reactor
- Item Gallery: Arc Reactor
- Fan-Art Gallery: Arc Reactor
Links and References