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A fusion energy gain factor, usually expressed with the symbol Q, is the ratio of fusion power produced in a nuclear fusion reactor to the power required to maintain the plasma in steady state. The condition of Q = 1, when the power being released by the fusion reactions is equal to the required heating power, is referred to as breakeven , or ...
Efficiency is how much energy is needed to drive the device and how well it collects energy from the reactions. Fusion is rate of energy generated by the fusion reactions. Radiation loss is the energy lost as light (including X-rays) leaving the plasma. Conduction loss is the energy lost as particles leave the plasma, carrying away energy.
The Fusion Energy Research section incorporated a milestone-based, ... Fusion energy gain factor: 2022: 1.54: NIF [286] Discharge time (field reversed configuration)
Advances in the potential energy source may not be about electricity, at least at first.
In other words, fusion ignition is the point at which the increasing self-heating of the nuclear fusion removes the need for external heating. [1] This is quantified by the Lawson criterion. [2] Ignition can also be defined by the fusion energy gain factor. [3]
A reaction with a negative Q value is endothermic, i.e. requires a net energy input, since the kinetic energy of the final state is less than the kinetic energy of the initial state. [1] Observe that a chemical reaction is exothermic when it has a negative enthalpy of reaction, in contrast a positive Q value in a nuclear reaction.
Scientists have been chasing the promise of fusion since the dawn of the atomic age, but had yet to cross a threshold in which more energy was created by a fusion reaction than the energy needed ...
The JT-60 tokamak in Japan produced a high performance reversed shear plasma with the equivalent fusion amplification factor of 1.25 - the current world record of Q, fusion energy gain factor. Results of European-based study of heavy ion driven fusion power system (HIDIF, GSI-98-06) incorporates telescoping beams of multiple isotopic species.