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Nuclear Reactors
Nuclear reactors are devices that maintain nuclear reactions. They are used in creating power and elements.
500 Questions
Why is a nuclear reactor enclosed in concrete?
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For shielding against radiation and to provide more safety barrier against any unexpected emergency conditions.
How is radioisotopes used in nuclear reactors?
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Radioisotopes for many uses (e.g. medical, industrial, scientific) are produced in nuclear reactors.
Where is nuclear fuel generated?
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In what is called a finishing plant, the fuel is packaged in its final form for the intended purpose.
What are the functions of a nuclear reactor components?
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Mainly:
- Nuclear fuel: where nuclear fission and energy is produced
- Reactor coolant: to extract heat from fuel
- Reactor neutron moderator: to reduce neutron energy to thermal range (0.025 ev)
- Reactor control elements: to control nuclear reaction rate, compensate for fuel burnup, and for shutdown and safety conditions
- Reflector: to reduce neutron leakage
What kinds of people use plutonium?
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Chemists, engineers, electronic specialists, physicists: to make nuclear fuels, nuclear weapons, radioisotopic source of heat or electricity etc.
What is the process of refining uranium to the form used in the reactor?
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Its called enrichment and it can be done many different ways. Most ways of enriching uranium require the use of what is probably the most corrosive, toxic, and violently reactive with water chemicals there is: uranium hexafluoride UF6. uranium hexafluoride will corrode almost all metals except pure nickle. uranium hexafluoride attacks all organic compounds. uranium hexafluoride on contact with water ignites and can explode.
Enrichment methods using uranium hexafluoride include:
- gaseous diffusion
- thermal diffusion
- centrifuge
- LASER separation
- electromagnetic separation, aka calutron, aka mass spectrometer
- plasma separation
What is the function of a nuclear reactor of a nuclear plant?
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simply, the nuclear reactor is the source of heat (or steam) for the nuclear power plant.
Who is the father of nuclear bomb?
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Robert Oppenheimer is the father of nuclear bomb.
What is used as an efficient moderator in a majority of reactors?
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Light water (H2O) and heavy water (D2O)
What is shot at isotope's nucleus to trigger nuclear chain reaction?
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Gamma Particles
How heat is produced in nuclear reactor?
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The nuclear fission results in mass loss (called mass defect) that transforms into energy according to the formula: E = mc2 (c is light velocity). This energy manifests itself as heat energy.
What materials is used as controller in a nuclear reactor power generator?
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cadmium
