nuclear fission reaction

It is a daughter product of nuclear fission reactions.

This was the world's first recorded nuclear fission reaction.

"A critical nuclear fission reaction is not feasible under our safety precautions," the quoted documents stated.

All existing nuclear weapons derive some of their explosive energy from nuclear fission reactions.

Above this atomic mass, energy will generally be released by nuclear fission reactions; below it, by fusion.

As a consequence, nuclear reactors, which are powered by nuclear fission reactions, produce energetic neutrons.

This fusion reaction released a large number of free neutrons, which greatly increased the efficiency of the nuclear fission reaction.

Thrust would be generated by nuclear fission reactions from the nuclear salts heating the water and being expelled through a nozzle.

When the reflector was ejected from the unit, the reactor could not sustain the nuclear fission reaction and the reactor permanently shut down.

In nature, sixteen repositories were discovered at the Oklo mine in Gabon where natural nuclear fission reactions took place 1.7 billion years ago.

The feat was popularly known as "splitting the atom," although it was not the modern nuclear fission reaction later discovered in heavy elements, in 1938.

Extracting the rods to a calculated height allows the reactor to reach criticality - the point at which the nuclear fission reactions reach a self-sustaining level.

Neutron-induced nuclear fission reactions - a very heavy nucleus, spontaneously or after absorbing additional light particles (usually neutrons), splits into two or sometimes three pieces.

This means that with rising temperature the neutron moderation drops and the nuclear fission reaction in the core is dampened, leading to a lower core temperature.

Bimodal Nuclear Thermal Rockets conduct nuclear fission reactions similar to those safely employed at nuclear power plants including submarines.

Self-sustaining nuclear fission reactions took place in these reactors approximately 1.5 billion years ago, and ran for a few hundred thousand years, averaging 100 kW of power output during that time.

Some downsides to the design include the radiation hazards inherent to nuclear pulse propulsion as well as the limited availability of the antiprotons used to initialize the nuclear fission reaction.

A fission product is a nucleus with approximately half the mass of a uranium or plutonium nucleus which is left over after such a nucleus has been "split" in a nuclear fission reaction.

Unlike most modern thermonuclear bombs, the Mark 15 used a secondary which was primarily HEU (highly enriched uranium), which generated most of its energy from nuclear fission reactions once the primary imploded it.

The mass-energy equivalence formula was used in the understanding of nuclear fission reactions, and implies the great amount of energy that can be released by a nuclear fission chain reaction, used in both nuclear weapons and nuclear power.

Currently, Mo is recovered as a product of the nuclear fission reaction of U, separated from other fission products via a multistep process and loaded onto a column of alumina that forms the core of a Mo/Tc radioisotope "generator".

There are two basic types of nuclear weapons: those that derive the majority of their energy from nuclear fission reactions alone, and those that use fission reactions to begin nuclear fusion reactions that produce a large amount of the total energy output.

While typical chemical reactions release energies on the order of a few electron volts (e.g. the binding energy of the electron to hydrogen is 13.6 eV), nuclear fission reactions typically release energies on the order of hundreds of millions of eVs.

Like the pressurized water reactor, the BWR reactor core continues to produce heat from radioactive decay after the Nuclear fission reactions have stopped, making a nuclear meltdown incident possible in the event that all safety systems have failed and the core does not receive coolant.

In a typical nuclear fission reaction, 187 MeV of energy are released instantaneously in the form of kinetic energy from the fission products, kinetic energy from the fission neutrons, instantaneous gamma rays, or gamma rays from the capture of neutrons.