Explain why, in a nuclear reactor, the chain reaction stops if control rods are fully inserted into the graphite?
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Explain why, in a nuclear reactor, the chain reaction stops if control rods are fully inserted into the graphite?
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Answer:
When all control rods are fully inserted, they keep reactivity barely above 0, which quickly slows a running reactor to a stop and keeps it stopped (in shutdown). ... Control rods are partially removed from the core to allow the nuclear chain reaction to start up and increase to the desired power level.