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23 Cards in this Set
- Front
- Back
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Nuclear Fission |
-The splitting of a large nucleus into smaller ones with the release of energy |
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Chain Reaction |
-A reaction where one of the products becomes a reactant to become self sustaining |
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Critical Mass |
-The amount of fissionable fuel required to sustain a chain reaction |
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Control Rods
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-Neutron absorber that can be positioned to absorb fewer or more neutrons |
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Primary Coolant |
-A liquid that comes in direct contact with control rods and carries heat away from them |
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Moderator |
-Slows the neutrons, making them more effective in producing fission |
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Secondary Coolant |
-The water in the steam generator that does not come in contact with the reactor |
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Radioactivity |
-The spontaneous emission of radiation by certain elements |
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Beta Particle |
-High speed electron emitted from the nucleus Negative charge |
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Alpha Particle |
-Positively charged particle emitted from nucleus 2 protons, 2 neutrons 2+ charge |
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Gamma Ray |
-No charge, emitted from radiated nucleus |
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Radioactive Decay Series |
-Begins with a radioisotope and produces a stable isotope Steps |
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Ionizing Radiation |
-X Rays and nuclear radiation that can remove electrons from the atoms and molecules they hit |
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Radiation Sickness |
-Too much radiation results in symptoms of anemia, nausea |
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Background Radiation |
-The level of radiation present at a specific location |
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Enriched Uranium |
-Uranium with a higher percent of U-235 than its natural amount of 0.7% |
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Gaseous Diffusion |
-A process where gases with different molecular weights are forced through of series of permeable membranes |
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Depleted Uranium |
-Uranium with 99.8% U-238 U-235 removed from it |
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Nuclear Fuel Cycle |
-Uranium ore is mined, processed, used to fuel a reactor and dealt with as waste |
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Half-Life |
-Time it takes for the level of radioactivity to fall to half its value |
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Breeder Reactor |
-A nuclear reactor that more fissionable fuel than it consumes |
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Vitrification |
-The spent fuel elements or other mixed waste are encased in glass |
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PQUA |
-Good work |
