enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Neutron generator - Wikipedia

    en.wikipedia.org/wiki/Neutron_generator

    Neutron generators are neutron source devices which contain compact linear particle accelerators and that produce neutrons by fusing isotopes of hydrogen together. The fusion reactions take place in these devices by accelerating either deuterium , tritium , or a mixture of these two isotopes into a metal hydride target which also contains ...

  3. Nuclear fission - Wikipedia

    en.wikipedia.org/wiki/Nuclear_fission

    The 1 September 1939 paper by Bohr and Wheeler used this liquid drop model to quantify fission details, including the energy released, estimated the cross section for neutron-induced fission, and deduced 235 U was the major contributor to that cross section and slow-neutron fission. [42] [5]: 262, 311 [4]: 9–13

  4. Traveling wave reactor - Wikipedia

    en.wikipedia.org/wiki/Traveling_wave_reactor

    Red: uranium-238, light green: plutonium-239, black: fission products. Intensity of blue color between the tiles indicates neutron density A traveling-wave reactor ( TWR ) is a proposed type of nuclear fission reactor that can convert fertile material into usable fuel through nuclear transmutation , in tandem with the burnup of fissile material.

  5. Photofission - Wikipedia

    en.wikipedia.org/wiki/Photofission

    Photofission is a process in which a nucleus, after absorbing a gamma ray, undergoes nuclear fission and splits into two or more fragments. The reaction was discovered in 1940 by a small team of engineers and scientists operating the Westinghouse Atom Smasher at the company's Research Laboratories in Forest Hills, Pennsylvania . [ 1 ]

  6. Nuclear chain reaction - Wikipedia

    en.wikipedia.org/wiki/Nuclear_chain_reaction

    The six factor formula effective neutron multiplication factor, k eff, is the average number of neutrons from one fission that cause another fission. The remaining neutrons either are absorbed in non-fission reactions or leave the system without being absorbed. The value of k eff determines how a nuclear chain reaction proceeds:

  7. Nuclear reaction - Wikipedia

    en.wikipedia.org/wiki/Nuclear_reaction

    Reactions with neutrons are important in nuclear reactors and nuclear weapons. While the best-known neutron reactions are neutron scattering, neutron capture, and nuclear fission, for some light nuclei (especially odd-odd nuclei) the most probable reaction with a thermal neutron is a transfer reaction:

  8. Fusor - Wikipedia

    en.wikipedia.org/wiki/Fusor

    An important development was the successful commercial introduction of a fusor-based neutron generator. From 2006 until his death in 2007, Robert W. Bussard gave talks on a reactor similar in design to the fusor, now called the polywell , that he stated would be capable of useful power generation. [ 25 ]

  9. Nuclear weapon design - Wikipedia

    en.wikipedia.org/wiki/Nuclear_weapon_design

    When a free neutron hits the nucleus of a fissile atom like uranium-235 (235 U), the uranium nucleus splits into two smaller nuclei called fission fragments, plus more neutrons (for 235 U three about as often as two; an average of just under 2.5 per fission). The fission chain reaction in a supercritical mass of fuel can be self-sustaining ...