Inside a nuclear reactor 0.0 / 5 ? PhysicsRadioactivityGCSEAQA Created by: asho glenoCreated on: 10-04-15 13:01 The reactor core is a thick steel vessel containing... the fuel rods and water at high pressure 1 of 12 The fission neutrons are slowed down by... collisions with atoms in the water molecules 2 of 12 This is necessary as fast neutrons do not cause... futher fission of U-235 3 of 12 Water acts as a... moderator as it sslows the fission neutrons down 4 of 12 Control rods in the core absorb... surplus neutrons 5 of 12 This keeps the chain reaction... under control 6 of 12 The depth of the rods in the core are... adjusted to maintain a steady chain reaction 7 of 12 The water acts as a... coolant 8 of 12 Its molecules gain kinetic energy from the... neutrons and fuel rods 9 of 12 The water is pumped through the core and through... sealed pipes to and from a heat exchanger from the core 10 of 12 The reactor core is a thick steel vessel, designed to... withstand the high temperature and pressure in the core 11 of 12 The core is enclosed by thick... concrete walls which absorb radiation that escapes through the walls of the steel vessel 12 of 12
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