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86 relations: Age of the Earth, Alpha decay, Astatine, Atom, Beloyarsk Nuclear Power Station, Beta decay, Bismuth, BN-600 reactor, Boosted fission weapon, Breeder reactor, Castle Bravo, Chain reaction, Clean and Environmentally Safe Advanced Reactor, Construction aggregate, Critical mass, Delayed neutron, Depleted uranium, Doppler broadening, Dry cask storage, Ducrete, Electron, Electron neutrino, Enriched uranium, Exponential decay, Fast fission, Fertile material, Gamma ray, Geoneutrino, Inelastic scattering, Inertia, Isotopes of protactinium, Isotopes of thorium, Isotopes of uranium, Ivy Mike, Lead, Lead–lead dating, Mole (unit), Monju Nuclear Power Plant, MOX fuel, NATO, Natural uranium, Negative feedback, Neutron, Neutron capture, Neutron reflector, Neutron temperature, Nuclear fallout, Nuclear fission product, Nuclear fuel, Nuclear fusion, ..., Nuclear reactor, Nuclear transmutation, Nuclear weapon, Nuclear weapon design, Plutonium-239, Plutonium-242, Polonium, Power station, Protactinium, Radiation protection, Radioactive decay, Radioactive waste, Radiometric dating, Radium, Radon, Relative atomic mass, Reprocessed uranium, Resonance, Second, Sediment, Soviet Union, Thallium, Thermonuclear weapon, Thorium, Tsar Bomba, Uranium, Uranium dioxide, Uranium-232, Uranium-233, Uranium-234, Uranium-235, Uranium-236, Uranium–lead dating, Voyager Golden Record, Voyager program, X-ray. Expand index (36 more) »
Age of the Earth
The age of the Earth is 4.54 ± 0.05 billion years This age may represent the age of the Earth’s accretion, of core formation, or of the material from which the Earth formed.
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Alpha decay
Alpha decay or α-decay is a type of radioactive decay in which an atomic nucleus emits an alpha particle (helium nucleus) and thereby transforms or 'decays' into an atom with a mass number that is reduced by four and an atomic number that is reduced by two.
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Astatine
Astatine is a radioactive chemical element with symbol At and atomic number 85.
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Atom
An atom is the smallest constituent unit of ordinary matter that has the properties of a chemical element.
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Beloyarsk Nuclear Power Station
The Beloyarsk Nuclear Power Station (NPS; Белоярская атомная электростанция им.) was the second of the Soviet Union's nuclear plants.
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Beta decay
In nuclear physics, beta decay (β-decay) is a type of radioactive decay in which a beta ray (fast energetic electron or positron) and a neutrino are emitted from an atomic nucleus.
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Bismuth
Bismuth is a chemical element with symbol Bi and atomic number 83.
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BN-600 reactor
The BN-600 reactor is a sodium-cooled fast breeder reactor, built at the Beloyarsk Nuclear Power Station, in Zarechny, Sverdlovsk Oblast, Russia.
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Boosted fission weapon
A boosted fission weapon usually refers to a type of nuclear bomb that uses a small amount of fusion fuel to increase the rate, and thus yield, of a fission reaction.
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Breeder reactor
A breeder reactor is a nuclear reactor that generates more fissile material than it consumes.
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Castle Bravo
Castle Bravo was the first in a series of high-yield thermonuclear weapon design tests conducted by the United States at Bikini Atoll, Marshall Islands, as part of Operation Castle.
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Chain reaction
A chain reaction is a sequence of reactions where a reactive product or by-product causes additional reactions to take place.
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Clean and Environmentally Safe Advanced Reactor
The Clean and Environmentally Safe Advanced Reactor (CAESAR) is a nuclear reactor concept created by Claudio Filippone, the Director of the Center for Advanced Energy Concepts at the University of Maryland, College Park and head of the ongoing CAESAR Project.
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Construction aggregate
Construction aggregate, or simply "aggregate", is a broad category of coarse to medium grained particulate material used in construction, including sand, gravel, crushed stone, slag, recycled concrete and geosynthetic aggregates.
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Critical mass
A critical mass is the smallest amount of fissile material needed for a sustained nuclear chain reaction.
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Delayed neutron
In nuclear engineering, a delayed neutron is a neutron emitted after a nuclear fission event, by one of the fission products (or actually, a fission product daughter after beta decay), any time from a few milliseconds to a few minutes after the fission event.
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Depleted uranium
Depleted uranium (DU; also referred to in the past as Q-metal, depletalloy or D-38) is uranium with a lower content of the fissile isotope U-235 than natural uranium.
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Doppler broadening
In atomic physics, Doppler broadening is the broadening of spectral lines due to the Doppler effect caused by a distribution of velocities of atoms or molecules.
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Dry cask storage
Dry cask storage is a method of storing high-level radioactive waste, such as spent nuclear fuel that has already been cooled in the spent fuel pool for at least one year and often as much as ten years.
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Ducrete
DUCRETE (Depleted Uranium Concrete) is a high density concrete alternative investigated for use in construction of casks for storage of radioactive waste.
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Electron
The electron is a subatomic particle, symbol or, whose electric charge is negative one elementary charge.
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Electron neutrino
The electron neutrino is a subatomic lepton elementary particle which has no net electric charge.
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Enriched uranium
Enriched uranium is a type of uranium in which the percent composition of uranium-235 has been increased through the process of isotope separation.
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Exponential decay
A quantity is subject to exponential decay if it decreases at a rate proportional to its current value.
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Fast fission
Fast fission is fission that occurs when a heavy atom absorbs a high-energy neutron, called a fast neutron, and splits.
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Fertile material
Fertile material is a material that, although not itself fissionable by thermal neutrons, can be converted into a fissile material by neutron absorption and subsequent nuclei conversions.
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Gamma ray
A gamma ray or gamma radiation (symbol γ or \gamma), is penetrating electromagnetic radiation arising from the radioactive decay of atomic nuclei.
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Geoneutrino
A geoneutrino is a neutrino or antineutrino emitted in decay of radionuclide naturally occurring in the Earth.
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Inelastic scattering
In chemistry, nuclear physics, and particle physics, inelastic scattering is a fundamental scattering process in which the kinetic energy of an incident particle is not conserved (in contrast to elastic scattering).
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Inertia
Inertia is the resistance of any physical object to any change in its position and state of motion.
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Isotopes of protactinium
Protactinium (91Pa) has no stable isotopes.
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Isotopes of thorium
Although thorium (90Th) has 6 naturally occurring isotopes, none of these isotopes are stable; however, one isotope, 232Th, is relatively stable, with a half-life of 1.405×1010 years, considerably longer than the age of the Earth, and even slightly longer than the generally accepted age of the universe.
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Isotopes of uranium
Uranium (92U) is a naturally occurring radioactive element that has no stable isotopes but two primordial isotopes (uranium-238 and uranium-235) that have long half-life and are found in appreciable quantity in the Earth's crust, along with the decay product uranium-234.
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Ivy Mike
Ivy Mike was the codename given to the first test of a full-scale thermonuclear device, in which part of the explosive yield comes from nuclear fusion.
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Lead
Lead is a chemical element with symbol Pb (from the Latin plumbum) and atomic number 82.
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Lead–lead dating
Lead–lead dating is a method for dating geological samples, normally based on 'whole-rock' samples of material such as granite.
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Mole (unit)
The mole, symbol mol, is the SI unit of amount of substance.
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Monju Nuclear Power Plant
is a Japanese sodium-cooled fast reactor, located in Tsuruga Nuclear Power Plant, Fukui Prefecture.
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MOX fuel
Mixed oxide fuel, commonly referred to as MOX fuel, is nuclear fuel that contains more than one oxide of fissile material, usually consisting of plutonium blended with natural uranium, reprocessed uranium, or depleted uranium.
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NATO
The North Atlantic Treaty Organization (NATO; Organisation du Traité de l'Atlantique Nord; OTAN), also called the North Atlantic Alliance, is an intergovernmental military alliance between 29 North American and European countries.
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Natural uranium
Natural uranium (NU, Unat) refers to uranium with the same isotopic ratio as found in nature.
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Negative feedback
Negative feedback (or balancing feedback) occurs when some function of the output of a system, process, or mechanism is fed back in a manner that tends to reduce the fluctuations in the output, whether caused by changes in the input or by other disturbances.
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Neutron
| magnetic_moment.
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Neutron capture
Neutron capture is a nuclear reaction in which an atomic nucleus and one or more neutrons collide and merge to form a heavier nucleus.
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Neutron reflector
A neutron reflector is any material that reflects neutrons.
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Neutron temperature
The neutron detection temperature, also called the neutron energy, indicates a free neutron's kinetic energy, usually given in electron volts.
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Nuclear fallout
Nuclear fallout, or simply fallout, is the residual radioactive material propelled into the upper atmosphere following a nuclear blast, so called because it "falls out" of the sky after the explosion and the shock wave have passed.
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Nuclear fission product
Nuclear fission products are the atomic fragments left after a large atomic nucleus undergoes nuclear fission.
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Nuclear fuel
Nuclear fuel is a substance that is used in nuclear power stations to produce heat to power turbines.
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Nuclear fusion
In nuclear physics, nuclear fusion is a reaction in which two or more atomic nuclei come close enough to form one or more different atomic nuclei and subatomic particles (neutrons or protons).
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Nuclear reactor
A nuclear reactor, formerly known as an atomic pile, is a device used to initiate and control a self-sustained nuclear chain reaction.
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Nuclear transmutation
Nuclear transmutation is the conversion of one chemical element or an isotope into another chemical element.
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Nuclear weapon
A nuclear weapon is an explosive device that derives its destructive force from nuclear reactions, either fission (fission bomb) or from a combination of fission and fusion reactions (thermonuclear bomb).
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Nuclear weapon design
Nuclear weapon designs are physical, chemical, and engineering arrangements that cause the physics package of a nuclear weapon to detonate.
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Plutonium-239
Plutonium-239 is an isotope of plutonium.
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Plutonium-242
Plutonium-242 is one of the isotopes of plutonium, the second longest-lived, with a half-life of 373,300 years.
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Polonium
Polonium is a chemical element with symbol Po and atomic number 84.
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Power station
A power station, also referred to as a power plant or powerhouse and sometimes generating station or generating plant, is an industrial facility for the generation of electric power.
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Protactinium
Protactinium (formerly protoactinium) is a chemical element with symbol Pa and atomic number 91.
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Radiation protection
Radiation protection, sometimes known as radiological protection, is defined by the International Atomic Energy Agency (IAEA) as "The protection of people from harmful effects of exposure to ionizing radiation, and the means for achieving this".
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Radioactive decay
Radioactive decay (also known as nuclear decay or radioactivity) is the process by which an unstable atomic nucleus loses energy (in terms of mass in its rest frame) by emitting radiation, such as an alpha particle, beta particle with neutrino or only a neutrino in the case of electron capture, gamma ray, or electron in the case of internal conversion.
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Radioactive waste
Radioactive waste is waste that contains radioactive material.
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Radiometric dating
Radiometric dating or radioactive dating is a technique used to date materials such as rocks or carbon, in which trace radioactive impurities were selectively incorporated when they were formed.
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Radium
Radium is a chemical element with symbol Ra and atomic number 88.
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Radon
Radon is a chemical element with symbol Rn and atomic number 86.
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Relative atomic mass
Relative atomic mass (symbol: A) or atomic weight is a dimensionless physical quantity defined as the ratio of the average mass of atoms of a chemical element in a given sample to one unified atomic mass unit.
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Reprocessed uranium
Reprocessed uranium (RepU) is the uranium recovered from nuclear reprocessing, as done commercially in France, the UK and Japan and by nuclear weapons states' military plutonium production programs.
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Resonance
In physics, resonance is a phenomenon in which a vibrating system or external force drives another system to oscillate with greater amplitude at specific frequencies.
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Second
The second is the SI base unit of time, commonly understood and historically defined as 1/86,400 of a day – this factor derived from the division of the day first into 24 hours, then to 60 minutes and finally to 60 seconds each.
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Sediment
Sediment is a naturally occurring material that is broken down by processes of weathering and erosion, and is subsequently transported by the action of wind, water, or ice, and/or by the force of gravity acting on the particles.
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Soviet Union
The Soviet Union, officially the Union of Soviet Socialist Republics (USSR) was a socialist state in Eurasia that existed from 1922 to 1991.
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Thallium
Thallium is a chemical element with symbol Tl and atomic number 81.
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Thermonuclear weapon
A thermonuclear weapon is a second-generation nuclear weapon design using a secondary nuclear fusion stage consisting of implosion tamper, fusion fuel, and spark plug which is bombarded by the energy released by the detonation of a primary fission bomb within, compressing the fuel material (tritium, deuterium or lithium deuteride) and causing a fusion reaction.
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Thorium
Thorium is a weakly radioactive metallic chemical element with symbol Th and atomic number 90.
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Tsar Bomba
Tsar Bomba was the Western nickname for the Soviet RDS-220 hydrogen bomb (code name Ivan or Vanya), the most powerful nuclear weapon ever created.
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Uranium
Uranium is a chemical element with symbol U and atomic number 92.
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Uranium dioxide
Uranium dioxide or uranium(IV) oxide (2), also known as urania or uranous oxide, is an oxide of uranium, and is a black, radioactive, crystalline powder that naturally occurs in the mineral uraninite.
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Uranium-232
Uranium-232 (U-232) is an isotope of uranium.
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Uranium-233
Uranium-233 is a fissile isotope of uranium that is bred from thorium-232 as part of the thorium fuel cycle.
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Uranium-234
Uranium-234 is an isotope of uranium.
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Uranium-235
Uranium-235 (235U) is an isotope of uranium making up about 0.72% of natural uranium.
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Uranium-236
Uranium-236 is an isotope of uranium that is neither fissile with thermal neutrons, nor very good fertile material, but is generally considered a nuisance and long-lived radioactive waste.
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Uranium–lead dating
Uranium–lead dating, abbreviated U–Pb dating, is one of the oldestBoltwood, B.B., 1907, On the ultimate disintegration products of the radio-active elements.
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Voyager Golden Record
The Voyager Golden Records are two phonograph records that were included aboard both Voyager spacecraft launched in 1977.
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Voyager program
The Voyager program is an American scientific program that employs two robotic probes, Voyager 1 and Voyager 2, to study the outer Solar System.
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X-ray
X-rays make up X-radiation, a form of electromagnetic radiation.
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Redirects here:
238U, Uranioum-238, Uranium 238.
References
[1] https://en.wikipedia.org/wiki/Uranium-238
