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7.3 nuclear sources (nuclear fuel cycle (using it in a reactor, safely…
7.3 nuclear sources
nuclear fuel cycle
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safely stroing and resulting highly radioactive wastes for thousands of years until their redioactivity falls to safe levels
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retiring the worn-out plant by taking it apart and storing its high and moderate level radioactive parts safely for thousands of years
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disadvantages
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threat of nuclear weapons: enrichment and nuclear reactor tech/ expertise can be used to produce bomb-grade uranium and plutonium for use in nuclear weapons
nuclear waste
the enriched uranium fuel in a typical ncuelar reactor last for 3-4 years, after which it becomes spent or useless it must be replaced
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when a nuclear reactor reaches the end of its useful life after 40 to 60 years and must be decomissioned
remove and store the highly radioactive parts in a permament secure repository which does not yet exist
install a physical barrier around the plant and set up full- time security for 30 to 100 years before dismantling
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nuclear sources
a nuclear power plant is a highly complex and costly system designed to boil water to produce steam that spins a turbine and generates electricity.
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nuclear meltdown
a coolant usually water circulates through the reactor's core to remove heat and keep the fuel rods and other reactor components from melting and releasing massive amount of radioactivity
a containment sell made of thick, steel- reinforced concrete sorround the core reactor to
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