Xenon-135: Why a Reactor Is Hardest to Restart Right After You Shut It Down
Xenon-135 is the poison a reactor makes itself and it peaks after shutdown. Why that delays restart, what “xenon dead time” really means, and how operators manage it.
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Why Nuclear Reactors Run on Poison: The Surprising Job of Boron
Every reactor is deliberately fed a “poison” — boron. A reactor engineer explains what neutron poison is, why boron is essential, and how it keeps a reactor under control.
