• Thumbnail for Neutron flux
    The neutron flux is a scalar quantity used in nuclear physics and nuclear reactor physics. It is the total distance travelled by all free neutrons per...
    8 KB (875 words) - 03:08, 15 February 2024
  • Thumbnail for Neutron radiation
    Neutron radiation is a form of ionizing radiation that presents as free neutrons. Typical phenomena are nuclear fission or nuclear fusion causing the release...
    21 KB (2,672 words) - 17:06, 19 September 2024
  • Thumbnail for Neutron source
    A neutron source is any device that emits neutrons, irrespective of the mechanism used to produce the neutrons. Neutron sources are used in physics, engineering...
    9 KB (1,134 words) - 04:11, 23 September 2024
  • Thumbnail for Neutron scattering
    reactors, that high neutron fluxes became possible, leading to the possibility of in-depth structure investigations. The first neutron-scattering instruments...
    11 KB (1,353 words) - 08:35, 7 October 2022
  • Thumbnail for Neutron capture
    by neutron capture. Neutron capture on protons yields a line at 2.223 MeV predicted and commonly observed in solar flares. At small neutron flux, as...
    8 KB (927 words) - 01:52, 13 July 2024
  • Thumbnail for High Flux Isotope Reactor
    flux reactor-based sources of neutrons for condensed matter physics research in the United States, and it has one of the highest steady-state neutron...
    38 KB (5,588 words) - 03:38, 18 May 2024
  • Thumbnail for Neutron activation analysis
    sensitivities for most elements. The neutron flux from such a reactor is in the order of 1012 neutrons cm−2 s−1. The type of neutrons generated are of relatively...
    18 KB (2,306 words) - 23:48, 19 May 2024
  • Iodine pit (category Neutron poisons)
    depends on the neutron flux before the shutdown. Iodine pit behavior is not observed in reactors with neutron flux density below 5×1016 neutrons m−2s−1, as...
    16 KB (1,993 words) - 02:49, 12 April 2024
  • as designed ... [O]ur first "neutron bombs" were the GAR-11 and MB-1 Genie. It has also been suggested that neutron flux's effects on the warhead electronics...
    63 KB (6,667 words) - 12:59, 6 September 2024
  • Thumbnail for Neutron transport
    fission) are proportional to the neutron flux, contrasting with fixed-source problems where the source is independent of the flux. In these calculations, the...
    21 KB (2,123 words) - 09:55, 24 September 2024
  • Thumbnail for Neutron cross section
    and the number of target nuclei.[page needed] In conjunction with the neutron flux, it enables the calculation of the reaction rate, for example to derive...
    22 KB (2,865 words) - 21:03, 11 August 2024
  • reactors, the neutron reflector is installed for following purposes: The neutron flux distribution is “flattened“, i.e., the ratio of the average flux to the...
    4 KB (498 words) - 16:08, 18 February 2024
  • Thumbnail for Neutron activation
    Chromium-51 will form by neutron activation in chrome steel (which contains Cr-50) that is exposed to a typical reactor neutron flux. Carbon-14, most frequently...
    18 KB (2,045 words) - 14:21, 11 September 2024
  • Thumbnail for Xenon-135
    Xenon-135 (category Neutron poisons)
    very large neutron absorption cross-section, so in the high-neutron-flux environment of a nuclear reactor core, the 135Xe soon absorbs a neutron and becomes...
    16 KB (1,949 words) - 21:08, 1 October 2024
  • nuclear fuel, whose neutron flux from spontaneous fission is insufficient for a reliable startup, or after prolonged shutdown periods. Neutron sources ensure...
    6 KB (741 words) - 03:19, 25 May 2024
  • Thumbnail for Thermonuclear weapon
    so-called neutron bombs) end with the fissioning of the final natural uranium tamper, something that could not normally be achieved without the neutron flux provided...
    99 KB (11,605 words) - 22:49, 26 September 2024
  • Thumbnail for Neutron
    biological hazard, depending on dose. A small natural "neutron background" flux of free neutrons exists on Earth, caused by cosmic ray showers, and by...
    115 KB (12,955 words) - 22:03, 26 September 2024
  • Thumbnail for Demon core
    parts: two plutonium-gallium hemispheres and a ring, designed to keep neutron flux from "jetting" out of the joined surface between the hemispheres during...
    28 KB (2,569 words) - 14:04, 5 October 2024
  • Thumbnail for High Flux Australian Reactor
    graphite neutron reflector surrounding the core. Like DIDO, its original purpose was nuclear materials testing, using its high neutron flux to give materials...
    7 KB (547 words) - 06:33, 18 September 2024
  • as nuclear reactors, a neutron poison (also called a neutron absorber or a nuclear poison) is a substance with a large neutron absorption cross-section...
    18 KB (2,277 words) - 12:36, 16 July 2024
  • Thumbnail for Neutron star
    of "flux freezing", or conservation of the original magnetic flux during the formation of the neutron star. If an object has a certain magnetic flux over...
    114 KB (13,815 words) - 14:26, 26 September 2024
  • Luminous flux Magnetic flux Magnetic flux quantum Neutron flux Poynting flux Poynting theorem Radiant flux Rapid single flux quantum Sound energy flux Volumetric...
    28 KB (3,845 words) - 15:56, 27 April 2024
  • resulting in a thermal neutron flux that is about 40 × 106 higher than the normal environmental neutron flux. This high thermal neutron flux will generally result...
    33 KB (4,531 words) - 15:20, 6 June 2024
  • Thumbnail for Neutron star merger
    short gamma-ray bursts. The merger of neutron stars momentarily creates an environment of such extreme neutron flux that the r-process can occur. This reaction...
    22 KB (2,353 words) - 18:48, 28 September 2024
  • Thumbnail for Small-angle neutron scattering
    neutrons (VCN) should be used. However, because of the weak neutron flux and lack of optical components in this range, most scientists use neutrons of...
    9 KB (1,102 words) - 15:56, 13 September 2024
  • of neutron flux, helping the reactor-operators in maintaining the neutron economy. It gives a direct current signal proportional to the incident flux of...
    2 KB (164 words) - 06:14, 16 November 2023
  • Thumbnail for Nuclear reactor physics
    source may be removed from the core to prevent damage from the high neutron flux in the operating reactor core; the secondary sources usually remains...
    28 KB (4,252 words) - 16:43, 19 September 2024
  • Thumbnail for R-process
    within ordinary stars, particularly AGB stars, where the neutron flux is sufficient to cause neutron captures to recur every 10–100 years, much too slow for...
    31 KB (3,894 words) - 22:20, 21 September 2024
  • A californium neutron flux multiplier (CFX) is a source of neutrons for research purposes. It contains a small amount of californium-252 and several plates...
    3 KB (259 words) - 09:10, 19 October 2023
  • produces twenty to thirty neutrons per event. It might be possible to increase the neutron flux through the use of a neutron amplifier, a thin film of...
    12 KB (1,507 words) - 12:18, 28 July 2024