Sentences with phrase «dampens nuclear reactions»
On 14 March, engineers decided they had to take further steps to cool the reactor vessel down, and so began pumping sea water into the vessel along with boron, an element that dampens nuclear reactions by soaking up the neutrons which drive them.
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Circular cracks had formed around several of these steel nozzles in the corroded lid that shield the control rods — 20 12 - inch -(30 - centimeter --RRB- long sticks made of a silver — indium — cadmium alloy that are used to dampen or shut down a nuclear reaction — rendering them vulnerable to simply popping off.