The Wigner effect (named for its discoverer, E. P. Wigner), also - TopicsExpress



          

The Wigner effect (named for its discoverer, E. P. Wigner), also known as the discomposition effect or Wigners Disease, is the displacement of atoms in a solid caused by neutron radiation. Any solid can be affected by the Wigner effect, but the effect is of most concern in neutron moderators, such as graphite, intended to reduce the speed of fast neutrons, thereby turning them into thermal neutrons capable of sustaining a nuclear chain reaction involving uranium-235.
Posted on: Sun, 18 Jan 2015 22:23:58 +0000

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