This category is related to the technological and safety aspects of the production of useful energy released by the fission of heavy nucleus. In the nuclear fission process, the nucleus of an atom splits into two smaller atoms (fission products). This occurs naturally in radioactive elements (radioactive decay), but it can be induced artificially by making fissionable atoms absorb free neutrons. This causes the nucleus to become unstable and makes it split apart. The fission process yields two smaller atoms, energy and several fast neutrons. Therefore, under certain conditions, the reaction can become self sustaining. This is called a chain reaction, or nuclear criticality. A nuclear reactor is an apparatus in which nuclear fission chain reactions are initiated, controlled, and sustained at a steady rate.
Sites expressing concerns about nuclear energy, stating opposition to nuclear energy or urging action against nuclear energy (e.g. activism) should be submitted to the Society/Issues/Environment/Nuclear category. Sites about nuclear fusion should be submitted to the Science/Physics/Nuclear/Fusion category.Sites about nuclear physics should be submitted to the Science/Physics/Nuclear category. Consulting companies should submit to Business/Industrial_Goods_and_Services/Engineering/Nuclear/Consulting. Before submitting a site, be sure to read the category description. Please submit to an appropriate subcategory, if one is available. Otherwise, submit here. Failure to submit to the most specific appropriate category can delay the consideration of your submission. For more information, please refer to the DMOZ Science FAQ.
This category is for sites about university departments doing scientific research and providing scientific educational programs in this discipline.
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This category is about the civil applications of nuclear energy in space. It includes nuclear heating systems based on the decay of radioactive nuclides, sub-critical and critical thermodynamic/thermionic systems.
If the site you are submitting also contains mechanic related information (propulsion device, technology, design basis, stress/strength assessments), please also consider submitting to Science/Technology/Mechanical Engineering/Propulsion/Aerospace/Space. Sites expressing concerns about nuclear energy, stating opposition to nuclear energy or urging action against nuclear energy (e.g. activism) should be submitted to Society/Issues/Environment/Nuclear. Sites about nuclear fusion should be submitted to Science/Physics/Nuclear/Fusion.Sites about nuclear physics should be submitted to Science/Physics/Nuclear. Before submitting a site, be sure to read the category description. Please submit to an appropriate subcategory, if one is available. Otherwise, submit here. Failure to submit to the most specific appropriate category can delay the consideration of your submission. For more information, please refer to the DMOZ Science FAQ.
This category is about fissionable nuclear fuel design and technology, fuel enrichment, fuel fabrication, fuel assemblies (including cladding) and fuel cycle. Nuclear fuel is used in nuclear reactor as the primary heat source for producing electrical and/or thermal energy. Several types of fuel can be used in nuclear reactors; amongst others MOX (mixed uranium-plutonium oxide), natural uranium, enriched uranium, thorium, high temperature fuel (HTF), fuel rods and fuel pebbles.
This category is about the technical aspects of spent nuclear fuel, management, reprocessing and disposal. Spent nuclear fuel is used fuel from nuclear reactors at commercial power plants, research reactors, government facilities, or from the nuclear medicine. These materials contain highly radioactive elements, such as cesium, strontium, technetium, and neptunium. Some of these elements will remain radioactive for a few years, while others will be radioactive for millions of years. Nuclear waste can be generally classified as either low level or high level radioactive waste. Low level nuclear waste usually includes material used to handle the radioactive parts of nuclear apparatus and waste from nuclear medicine. High level waste includes the fission products activated in nuclear reactors or in accelerators.
Sites expressing concerns about nuclear energy, stating opposition to nuclear energy or urging action against nuclear energy (e.g. activism) should be submitted to Society/Issues/Environment/Nuclear. Sites about nuclear physics should be submitted to Science/Physics/Nuclear. Consulting companies should submit to Business/Industrial_Goods_and_Services/Engineering/Nuclear/Consulting. Before submitting a site, be sure to read the category description. Please submit to an appropriate subcategory, if one is available. Otherwise, submit here. Failure to submit to the most specific appropriate category can delay the consideration of your submission. For more information, please refer to the DMOZ Science FAQ.
Organizations are groups of people working together towards a common goal. This category is for organizations involved in nuclear technology, nuclear safety or waste management.
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This category is about specific nuclear power plants. It includes commercial and technical information about plant design, capacity and operation. A nuclear power plant uses the thermal energy produced in the reactor core to produce steam at high pressure. The steam drives a turbine, which spins a generator to produce electrical power. Most of the nuclear reactors worldwide use light water as coolant and neutron moderator; they are called Light Water Reactor (LWR). In some reactors however, the coolant fluid is heavy water, gas (carbon dioxide) or liquid metal (sodium, potassium).
Sites expressing concerns about nuclear energy, stating opposition to nuclear energy or urging action against nuclear energy (e.g. activism) should be submitted to the Society/Issues/Environment/Nuclear category. Sites about nuclear fusion should be submitted to the Science/Physics/Nuclear/Fusion category.Sites about nuclear physics should be submitted to the Science/Physics/Nuclear category. Before submitting a site, be sure to read the category description. Please submit to an appropriate subcategory, if one is available. Otherwise, submit here. Failure to submit to the most specific appropriate category can delay the consideration of your submission. For more information, please refer to the DMOZ Science FAQ.
Most research activities will either occur in academic departments or in research institutes (which may either be in universities or external). Both of these are included in this category.
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This category is about nuclear safeguards, nuclear safety standards and guidelines. Nuclear safeguards are written documents about the safety of nuclear utilities and about the security of materials that could be used to create nuclear weapons (proliferation).
Sites expressing concerns about nuclear energy, stating opposition to nuclear energy or urging action against nuclear energy (e.g. activism) should be submitted to the Society/Issues/Environment/Nuclear category. Please submit sites about safety technology or about specific nuclear accidents to Science/Technology/Energy/Nuclear/Safety and Accidents. Sites about nuclear physics should be submitted to the Science/Physics/Nuclear category. Before submitting a site, be sure to read the category description. Please submit to an appropriate subcategory, if one is available. Otherwise, submit here. Failure to submit to the most specific appropriate category can delay the consideration of your submission. For more information, please refer to the DMOZ Science FAQ.
Topics include reactor safety, probabilistic and deterministic safety assessments, nuclear materials safety, accident analysis, accident simulation, safety in other aspects of the use of nuclear energy, and accounts of past nuclear accidents.
Sites about specific accidents should be submitted to the appropriate subcategory for that accident, if one exists. Sites expressing general concern about nuclear power, nuclear energy, nuclear materials or nuclear weapons should be listed in Society/Issues/Environment/Nuclear or related categories. Consulting companies should submit to Business/Industrial_Goods_and_Services/Engineering/Nuclear/Consulting. Before submitting a site, be sure to read the category description. Please submit to an appropriate subcategory, if one is available. Otherwise, submit here. Failure to submit to the most specific appropriate category can delay the consideration of your submission. For more information, please refer to the DMOZ Science FAQ.