Fission in a sentence

Both gammas produced directly by fission and by the decay of fission fragments have enough energy, and the half-lives of the fission fragments range from seconds to hours or even years.

Fission reaction products main When a heavy atom undergoes nuclear fission it breaks into two or more fission fragments.

Most fission reactors use a neutron moderator to slow down, or thermalize the neutrons that are emitted by nuclear fission so that they are more easily captured, causing further fission.

While uranium-238 did not fission readily with slow, moderated neutron, it might still fission with the fast neutrons produced by fission.

Critical mass is defined as the amount of material at which a neutron produced by a fission process will, on average, create another fission event.

About 6 MeV of the fission-input energy is supplied by the simple binding of an extra neutron to the heavy nucleus via the strong force; however, in many fissionable isotopes, this amount of energy is not enough for fission.

Another type of fission is multiple fission that is advantageous to the plant life cycle.

Classification by type of nuclear reaction Nuclear fission All commercial power reactors are based on nuclear fission.

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

For example, a boosted fission weapon is a fission bomb that increases its explosive yield through a small amount of fusion reactions, but it is not a fusion bomb.

For thermal (slow-neutron) fission reactors, the typical prompt neutron lifetime is on the order of 10 −4 seconds, and for fast fission reactors, the prompt neutron lifetime is on the order of 10 −7 seconds.

Hybrid nuclear fusion-fission (hybrid nuclear power) is a proposed means of generating power by use of a combination of nuclear fusion and fission processes.

It is a highly asymmetrical fission because the four particles which make up the alpha particle are especially tightly bound to each other, making production of this nucleus in fission particularly likely.

It is used to enhance the efficiency and yield of fission bombs and the fission stages of hydrogen bombs in a process known as " boosting " as well as in external neutron initiators for such weapons.

Long before all possible fission has taken place, the buildup of long-lived neutron absorbing fission byproducts impedes the chain reaction.

Looking further left on the curve of binding energy, where the fission products cluster, it is easily observed that the binding energy of the fission products tends to center around 8.5 MeV per nucleon.

Natural nuclear reactors main Although nuclear fission reactors are often thought of as being solely a product of modern technology, the first nuclear fission reactors were in fact naturally occurring.

Nuclear fission Nuclear fission is the reverse process to fusion.

Nuclear fission Nuclear fission type atomic bombs utilize the energy present in very heavy atomic nuclei, such as U-235 or Pu-239.

Szilárd, however, did not propose fission as the mechanism for his chain reaction, since the fission reaction was not yet discovered or even suspected.