• Fuel temperature coefficient of reactivity is the change in reactivity of the nuclear fuel per degree change in the fuel temperature. The coefficient...
    1 KB (168 words) - 11:09, 28 August 2024
  • including electric and magnetic properties of materials as well as reactivity. The temperature coefficient of most of the reactions lies between 2 and 3. Most...
    12 KB (1,676 words) - 06:12, 8 December 2023
  • Thumbnail for Nuclear fuel
    prompt negative fuel temperature coefficient of reactivity, meaning that as the temperature of the core increases, the reactivity decreases—so it is highly...
    55 KB (6,900 words) - 10:02, 18 July 2025
  • the void coefficient (more properly called void coefficient of reactivity) is a number that can be used to estimate how much the reactivity of a nuclear...
    11 KB (1,625 words) - 22:30, 22 April 2025
  • Uranium zirconium hydride (category Nuclear fuels)
    prompt negative fuel temperature coefficient of reactivity, meaning that as the temperature of the core increases, the reactivity rapidly decreases...
    2 KB (138 words) - 18:34, 29 May 2025
  • Thumbnail for Doppler broadening
    phenomenon driving the fuel temperature coefficient of reactivity also been used as a design consideration in high-temperature nuclear reactors. In principle...
    7 KB (1,141 words) - 23:01, 13 April 2024
  • Thumbnail for TRIGA
    hydride (UZrH) fuel, which has a large, prompt negative fuel temperature coefficient of reactivity, meaning that as the temperature of the core increases...
    14 KB (697 words) - 09:33, 6 July 2025
  • Thumbnail for RBMK
    positive void coefficient was reduced from +4.5 β to +0.7 β, decreasing the likelihood of further reactivity accidents, at the cost of higher enrichment...
    93 KB (10,722 words) - 20:13, 17 July 2025
  • Thumbnail for Pressurized water reactor
    positive thermal coefficient of reactivity. This means reactivity and heat generation increases when coolant and fuel temperatures increase, which makes...
    33 KB (4,322 words) - 00:29, 17 June 2025
  • Thumbnail for Neutron temperature
    on Doppler broadening or on negative void coefficient from a moderator. However, thermal expansion of the fuel itself can provide quick negative feedback...
    26 KB (2,848 words) - 18:53, 24 May 2025
  • Thumbnail for Critical mass
    negative temperature coefficient of reactivity to indicate that its reactivity decreases when its temperature increases. Using such a material as fuel means...
    20 KB (2,863 words) - 09:50, 30 June 2025
  • Thumbnail for Thermistor
    models. Negative-temperature-coefficient (NTC) thermistors have less resistance at higher temperatures, while positive-temperature-coefficient (PTC) thermistors...
    32 KB (4,123 words) - 20:35, 18 July 2025
  • Thumbnail for Proton-exchange membrane fuel cell
    as for stationary fuel-cell applications and portable fuel-cell applications. Their distinguishing features include lower temperature/pressure ranges (50...
    62 KB (8,028 words) - 10:30, 11 July 2025
  • Thumbnail for Solid oxide fuel cell
    operating temperature which results in longer start-up times and mechanical and chemical compatibility issues. Solid oxide fuel cells are a class of fuel cells...
    76 KB (9,828 words) - 19:23, 22 May 2025
  • segregation and sintering of solid materials. The Tammann temperature is important for reactive compounds like explosives and fuel oxiders, such as potassium...
    11 KB (1,130 words) - 19:59, 18 July 2025
  • Thumbnail for Nuclear fusion
    Nuclear fusion (category Pages that use a deprecated format of the chem tags)
    Glass "Temperature Measurements Of An Implosion Focus Archived 2012-07-20 at the Wayback Machine" Ion Flow and Fusion Reactivity, Characterization of a Spherically...
    113 KB (12,226 words) - 04:19, 17 July 2025
  • Thumbnail for Polytetrafluoroethylene
    double-layered PTFE-coated fiberglass dome. Because of its extreme non-reactivity and high temperature rating, PTFE is often used as the liner in hose assemblies...
    59 KB (6,062 words) - 12:46, 21 July 2025
  • to the designers, the reactor will have a "large negative temperature reactivity coefficient", lacks pumps and valves, uses heat pipes for heat removal...
    6 KB (549 words) - 15:18, 15 May 2025
  • Thumbnail for Light-water reactor
    Light-water reactor (category Wikipedia articles in need of updating from July 2015)
    property, known as the negative temperature coefficient of reactivity, makes PWRs very stable. In event of a loss-of-coolant accident, the moderator is...
    25 KB (3,329 words) - 00:26, 24 June 2025
  • Thumbnail for Nuclear meltdown
    lost, but moderation continues. This is termed a positive void coefficient of reactivity. The RBMK tends towards dangerous power fluctuations. Control...
    56 KB (7,656 words) - 15:47, 14 June 2025
  • Thumbnail for Nuclear chain reaction
    calculate or use practically. Instead, a system's reactivity is quantified instead. The reactivity of a nuclear system is qualitatively described as the...
    43 KB (6,139 words) - 04:48, 22 June 2025
  • Thumbnail for Nuclear fuel cycle
    properties i.e. low absorption cross-section, optimal constant reactivity, suitable Doppler coefficient, phase stability, chemical inertness, and compatibility...
    71 KB (9,931 words) - 05:41, 2 July 2025
  • CANDU derived fuel bundles, the reactor design has a slightly positive Void coefficient of reactivity, the Argentina designed CARA fuel bundles used in...
    16 KB (2,042 words) - 16:28, 17 July 2025
  • Thumbnail for Aircraft Reactor Experiment
    Calibration of shim rod vs. regulating rod Effect of fuel flow on reactivity Low-power measurement of reactor temperature coefficient Adjustment of chamber...
    18 KB (2,187 words) - 23:07, 9 March 2025
  • capable in principle of using unenriched fuel but require online refueling to be viable power reactors. No void coefficient of reactivity as the coolant is...
    6 KB (773 words) - 06:19, 30 June 2025
  • Thumbnail for Nuclear reactor physics
    reactors are unstable against changes in temperature (there is a "positive temperature coefficient" in the reactivity of the core), and so are less inherently...
    28 KB (4,307 words) - 21:42, 18 June 2025
  • probability of this occurrence through: negative reactivity coefficients, low power density, low excess reactivity in the core and proper selection of material...
    20 KB (2,114 words) - 08:33, 18 April 2025
  • Thumbnail for Fast-neutron reactor
    an excess of fuel is inserted with reactivity control mechanisms, such that the reactivity control is inserted fully at the beginning of life to bring...
    57 KB (7,498 words) - 10:36, 20 July 2025
  • uranium-233 fluoride fuel dissolved in it. The MSRE had a negative temperature coefficient of reactivity: as the FLiBe temperature increased, it expanded...
    25 KB (3,350 words) - 18:10, 8 May 2025
  • Thumbnail for Liquid fluoride thorium reactor
    MSBR design), less fuel salt means better moderation and thus more reactivity and an undesirable positive temperature coefficient. Stable coolant. Molten...
    116 KB (14,402 words) - 22:51, 1 July 2025