In a conventional reactor these neutrons are supplied by the fission reaction itself, which requires a certain concentration of the correct fissile isotopes (typically 235 U or 239 Pu) to be ...

Many of the features of the reactor are designed to control the speed of the reaction and the temperature inside the shielding. An uncontrolled fission reaction is the basis of an atomic bomb.

A controlled nuclear fission reaction releases one million times more energy per kg than a chemical reaction such as burning coal, oil or gas. This means much less fuel is required than for a ...

Chinese scientists sustain plasma at 100 million degrees C for 1,066 seconds in EAST, advancing nuclear fusion research.

Nuclear fission is the basis of nuclear reactors and nuclear power plants. Nuclear reactors are devices in which a self-sustaining controlled chain reaction is produced in a fissionable material.

Energy obtained from fusion and fission reactions is based on differences in the nuclear binding energy. The mass of the products of a fusion reaction is smaller than the mass of its reactants. The ...

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Greg Piefer is a UW-Madison College of Engineering product who is bullish about fusion uses today while urging patience over ...

The reason why opposite processes release energy can be understood by examining the binding energy per nucleon curve. Both fusion and fission reactions shift the size of the reactant nuclei towards ...

France has upped the ante in the quest for fusion power by maintaining a plasma reaction for over 22 minutes – a new record. The milestone was reached on February 12 at the Commissariat à l'énergie ...

In their model, rumors act like neutrons, the small particles that kick off nuclear fission. These rumors are seen by individuals, who send them careening into other people in a chain reaction.