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How is the speed of reaction in a nuclear reactor controlled?

Answers. In a fission reactor, control rods absorb neutrons to control the rate of a reaction. Lowering the rods into the reactor decreases the rate of fission and removing them increases the rate.

Which part of nuclear reactor is used to control the rate of reaction?

Control rods are inserted into the core of a nuclear reactor and adjusted in order to control the rate of the nuclear chain reaction and, thereby, the thermal power output of the reactor, the rate of steam production, and the electrical power output of the power station.

What are the parts of nuclear reactor?

Components of a Reactor Any nuclear reactor that produces power via the fission of uranium (U-235) or plutonium (Pu-239) by bombardment with neutrons must have at least five components: nuclear fuel consisting of fissionable material, a nuclear moderator, reactor coolant, control rods, and a shield/containment system.

Which part of the nuclear reactor keeps the nuclear chain reaction from going too fast?

Nuclear Moderators Neutrons produced by nuclear reactions move too fast to cause fission (Figure 4). They must first be slowed to be absorbed by the fuel and produce additional nuclear reactions. A nuclear moderator is a substance that slows the neutrons to a speed that is low enough to cause fission.

What is the process called when uranium 235 absorbs a neutron and then breaks apart into smaller pieces?

If a uranium atom absorbs a neutron it will be unstable, and will generally split into two fragments. This process, the splitting of a large nucleus into two smaller ones, is known as nuclear fission. Many nuclear reactors use uranium as fuel to generate electricity. U-235 is most easily split by a slow-moving neutron.

What happened to the Chernobyl miners?

Out of the miners who worked at Chernobyl, some have survived and some died. WAS THERE MUCH AWARENESS ABOUT RADIATION DURING CHERNOBYL? According to the Chernobyl podcast which accompanies the HBO and Sky Atlantic series, one in four miners perished from cancer or radiation-related diseases after working at Chernobyl.